2024-03-29T12:16:35Zhttp://eprints.lib.hokudai.ac.jp/dspace-oai/request
oai:eprints.lib.hokudai.ac.jp:2115/3012022-11-17T02:08:08Zhdl_2115_20083hdl_2115_1附属図書館 情報ポータルワーキンググループ アンケート調査班2005-02-01T02:52:08Z2005-01-06T02:52:08Zhttp://hdl.handle.net/2115/301北海道大学附属図書館では、学術機関リポジトリを本学に導入する有効性を検討する一方法として、全学の教員約2000人を対象に「学術情報の発信に関するアンケート」を平成16年11月29日-12月10日に実施した。その集計結果をまとめた。jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/学術機関リポジトリオープンアクセス意識調査学術情報の発信に関するアンケート調査報告書report007.3附属図書館 (University Library)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3282020-02-10T03:06:33Zhdl_2115_20040hdl_2115_121井上, 芳郎2005-02-18T08:04:44Z2005-01http://hdl.handle.net/2115/328jpn井上, 芳郎http://creativecommons.org/licenses/by-nc-sa/2.1/jp/解剖学実習指針learningobjectInoue, Yoshiro491北海道大学医学部解剖学教室医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3292020-02-10T03:06:33Zhdl_2115_20040hdl_2115_121井上, 芳郎2005-02-21T01:31:26Z1990http://hdl.handle.net/2115/329jpn井上, 芳郎http://creativecommons.org/licenses/by-nc-sa/2.1/jp/神経脳解剖学脊髄伝導路中枢神経系統合・基礎神経学 - 神経系の構造を中心にlearningobjectInoue, Yoshiro491.1北海道大学大学院医学研究科・脳科学専攻 神経機能学講座・分子解剖学分野医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3302020-02-10T03:06:33Zhdl_2115_20040hdl_2115_121井上, 芳郎2005-02-21T01:32:09Z2000http://hdl.handle.net/2115/330jpn井上, 芳郎http://creativecommons.org/licenses/by-nc-sa/2.1/jp/組織染色法光学顕微鏡標本免疫組織化学電子顕微鏡標本包埋法染色法基本顕微構造解析法 I・IIlearningobjectInoue, Yoshiro491北海道大学大学院医学研究科 脳科学専攻 神経機能学講座・分子解剖学医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3312020-02-10T03:06:33Zhdl_2115_20040hdl_2115_121井上, 芳郎2005-02-21T01:35:19Z2000http://hdl.handle.net/2115/331jpn井上芳郎http://creativecommons.org/licenses/by-nc-sa/2.1/jp/神経組織染色法神経細胞標識法免疫組織化学鍍銀法神経構造解析法 I・IIlearningobjectInoue, Yoshiro491.1北海道大学大学院医学研究科 脳科学専攻 神経機能学講座・分子解剖学医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3362023-07-10T00:40:21Zhdl_2115_20083hdl_2115_1佐々木, 光子2005-02-24T01:29:42Z2005-01-13http://hdl.handle.net/2115/3362005年1月13日(木)「図書館特論」補助資料jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/電子ジャーナル学術情報流通学術雑誌電子ジャーナルの周辺 - 学術情報流通の動向learningobjectSasaki, Mitsuko007.3附属図書館 (University Library)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3372019-06-03T00:24:32Zhdl_2115_20040hdl_2115_121井上, 芳郎2005-02-24T01:31:57Z2002http://hdl.handle.net/2115/3372002年に総長、副学長、総長補佐によって遠友学舎で行われた一般市民を対象とした講演会(炉辺談話)で井上が話した内容である。解剖学の歴史、意義、医学との関わりをわかりやすく解説した。jpn井上, 芳郎http://creativecommons.org/licenses/by-nc-sa/2.1/jp/解剖学医学形態学顕微鏡歴史ヒポクラテス解剖学と医学:今と昔lectureInoue, Yoshiro491総長室炉辺談話医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3542023-07-10T17:16:45Zhdl_2115_20083hdl_2115_1佐々木, 光子2005-03-02T01:36:41Z1996-03http://hdl.handle.net/2115/354学術情報センター目録所在情報サービス(NACSIS-CAT)の利用開始から10年を経て、総合目録データベースの書誌レコード数は、和図書 1,104,623件、洋図書 1,556,801件、Recon 736,766('95.12.8)と膨大な書誌ユーティリティーに発展してきた。これは、NACSIS-CAT に参加している全国420('96.1.10)の利用機関の目録業務に携わるカタロガーの協力、共同分担目録システム(Shared Cataloging)の成果でもあろう。NACSIS-CATによる目録業務データを言語別・出版年別のコピーカタロギング、オリジナルカタロギング率から検討して言語の問題を指摘し、書誌調整記録データの分析からその効率的軽減・軽量化について述べる。Cataloging with copy and original cataloging at the North Library, the Hokkaido University Library (a case study).jpn情報科学技術協会NACSIS-CAT総合目録データベース書誌調整言語マニュアル大学図書館の現場から - NACSIS-CAT カタロギングリポートCataloging through NACSIS-CATarticle (author version)Sasaki, Mitsuko014.3情報の科学と技術0913-3801463128135附属図書館 (University Library)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3602020-03-02T05:15:10Zhdl_2115_20083hdl_2115_1北海道大学附属図書館参考調査係2005-03-03T04:52:45Z2004http://hdl.handle.net/2115/360ライブラリーセミナー「Web of Scienceの使い方」配布資料jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/講習会被引用文献インパクトファクターWeb of Scienceの使い方learningobject007.58附属図書館 (University Library)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3652020-03-02T05:15:06Zhdl_2115_20083hdl_2115_1北海道大学附属図書館参考調査係2005-03-08T07:47:26Z2004http://hdl.handle.net/2115/365jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/ILL雑誌記事索引蔵書検索電子ジャーナル講習会『情報探索入門』2004年版テキストlearningobject007.58附属図書館 (University Library)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3702022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145井上, 純一2005-03-10T06:28:19Z2004http://hdl.handle.net/2115/370当講義資料は著者のホームページ
http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/
からもダウンロードできます。2004年度に開講された情報科学研究科大学院生対象の講義「混沌系工学特論」の講義ノートです。内容は確率的情報処理入門であり、統計力学を用いて情報処理の諸問題に取り組む際の計算/シミュレーション技法を出来る限り平易に解説しました。時間の関係で今年度のテーマは連想記憶の数理、最適化問題の数理、学習と汎化の数理に絞られましたが、来年度は画像・符号・移動体通信の数理、ゲーム理論と経済物理の数理をとりあげる予定です。全13問ある練習問題に取り組むと、一層理解が深まるものと期待しています。http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/確率的情報処理入門統計力学応用複雑系シミュレーション2004年度 混沌系工学特論講義ノートlearningobjectInoue, Jun-ichi007http://hdl.handle.net/2115/828http://hdl.handle.net/2115/32315http://hdl.handle.net/2115/57013情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3712022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145井上, 純一2005-03-10T06:47:35Z2004http://hdl.handle.net/2115/371当講義資料は著者のホームページ
http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/
からもダウンロードできます。2004年度に工学部情報工学科3年生を対象にして開講された講義「グラフ理論」の講義ノートです。前提とする数学的な知識を必要とぜずに理解できるように作成しました。多くの例題、練習問題を含み、それらの解答を出来る限り平易に説明してあります。なお、当講義は新カリキュラムに移行する2007年度以降は開講されませんが、アルゴリズムの計算量評価や最適化問題と絡んだ場合の数の数え上げ等の問題にグラフ理論を用いたい場合、グラフ理論の基本的な部分を手早く学びたい際には有用なのではないかと期待しています。http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/グラフ理論アルゴリズム組み合わせの数え上げ2004年度 グラフ理論講義ノートlearningobjectInoue, Jun-ichi007http://hdl.handle.net/2115/771http://hdl.handle.net/2115/15412http://hdl.handle.net/2115/28239情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3722022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145井上, 純一2005-03-10T06:55:17Z2004http://hdl.handle.net/2115/372この講義資料は著者のホームページ
http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/
からもダウンロードできます。工学部情報工学科3年生対象に開講されている「情報工学実験II」の一つのトピックスである「確率モデルを用いたフラクタル図形の作成」についての実験手引書です。この実験の目的は自然界に数多く見られるフラクタルをコンピュータを用いて作図する (シミュレートする) ことによりフラクタルという概念、 その図形を特徴つける量 --- フラクタル次元 (ボックスカウント次元) --- の算出方法を学ぶこと。 決定論的な規則に従って描かれるフラクタル --- 複素力学系 --- の他, 格子 (無向単純グラフ) 上において、ある種の確率過程に基づく粒子の拡散、 及び、 吸着がフラクタルを生むことを確認し、その形成メカニズムについて考察することです。フラクタルに関する基本的な知識が得られるだけでなく、多くの応用例があるセル・オートマトンに関する標準的なシミュレーション技法を身につけたい場合にも有益なのではないかと期待しています。http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/フラクタル確率モデル複雑系シミュレーション確率モデルを用いたフラクタル図形の作成に関する実験手引書learningobjectInoue, Jun-ichi548情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3732022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145井上, 純一2005-03-10T07:02:45Z2004http://hdl.handle.net/2115/373この講義資料は著者のホームページ
http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/
からもダウンロードできます。工学部情報工学科2年生を対象に開講されている「情報工学演習I(A)」の中の一つのトピックスである「C言語プログラミングによるファイル操作」についての演習手引書です。本演習の目的は初等的なC言語プログラミング技法の知識を前提とした場合、各種数値計算、 シミュレーションで得られるデータを可視化するためのフリー・ソフトウエア (例えば, Red Hat Linux ver.9 OS 上で動作する gnuplot, GIMP 等) に対するファイル入出力方法の習得です。特にデジタル画像の基本的な処理の仕方を手っ取り早く知りたい場合に有益なのではないかと期待しています。http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/ファイル操作C言語プログラミングデジタル画像処理C言語プログラミングにおけるファイル操作の演習手引書learningobjectInoue, Jun-ichi007情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3742022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145井上, 純一2005-03-11T05:22:36Z2004http://hdl.handle.net/2115/374この講義資料は著者のホームページhttp://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/ からもダウンロードできます。2004年度に工学部情報工学科2年生を対象に開講された「情報理論」の講義ノートです。この科目の目的は我々が普段何気なく口にしている「情報」を数式を用いて定量化し、それに基づき理論が展開される「情報理論」という体系を学ぶことであり、 ここで学ぶ事柄、 とりわけ「エントロピー」や「相互情報量」などは現在の情報通信技術の根幹を成すのみならず、 パターン認識や人工知能、あるいは統計物理、遺伝情報学など、多くの異なる分野において共有される極めて重要かつ有用な概念となっている事実を考えると、情報工学科の学部学生のみならず、かなり広域な専門課程の学生に対し有益なのではないかと考えます。 当講義ではこの理論の基礎を体系たてて理解することに重点を置いてあります。なお、今年度版は担当1年目ということもあり、この版の講義ノートの完成度は高くはないですが、2005年度以降、計算機シミュレーションなど、直観的理解を助けるような演習問題を加え、逐次改訂していく予定です。http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/情報理論エントロピー情報源・通信路の確率モデル2004年度 情報理論講義ノートlearningobjectInoue, Jun-ichi007http://hdl.handle.net/2115/772情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3752019-06-18T01:49:00Zhdl_2115_20039hdl_2115_116行木, 孝夫畠山, 元彦田所, 智青井, 久坂上, 貴史管野, 啓山田, 加織2005-03-15T05:42:23Z2005-03-10http://hdl.handle.net/2115/3752005年3月10日,京都大学数理解析研究所 共同利用 研究集会「電子情報交換における最近の話題」の講演資料。jpn北海道大学大学院理学研究科数学専攻http://creativecommons.org/licenses/by-nc-sa/2.1/jp/リポジトリ数学北大の実験と可能性 - OAI-PMHベースの分野リポジトリ構築conference presentationNamiki, Takao007.3京都大学数理解析研究所共同利用研究集会「電子情報交換における最近の話題」理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/3802022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Suzuki, KatsuyaTakagi, TsutomuShimizu, TakashiHiraishi, TomonoriYamamoto, KatsutaroNashimoto, Katsuaki2005-03-22T11:53:58Z2003-08http://hdl.handle.net/2115/380網漁具の水中での形状や運動を推定できる数値シミュレーション手法を開発するために,本報では前報で示された計算用モデルの妥当性を検証する。実験では定常流中に3種類の長方形の平面網地を設置し,流速を変化させながら網形状と網糸に作用する荷重を計測した。網地形状の計算結果はどのケースでも実物と非常に良く一致した。平面網地上辺に作用する荷重は計算結果と良い一致を示した。網糸張力の分布状況についても,実験結果と概ね一致した。これらの結果は本計算モデルが網漁具の形状や運動を推定するのに十分有効であることを示す。The aim of the present study was to develop a numerical calculation method to simulate the three-dimensional dynamic behavior of fishing nets. In a previous study, we presented a formulation to calculate net configurations. In this method, fishing nets were modeled as a group of lumped mass points interconnected with springs that have no mass. To verify the validity of calculation results using a computational model, we performed the flume tank experiments with a rectangular net and compared results with those of the numerical simulation of experiments. Using our method, numerical calculations for a rectangular net in a steady flow can provide accurate results. The calculated load and tension force distribution of the flat net were generally in accordance with the results of the flume tank experiments. This study shows that our method is valid for the simulation of fishing nets; furthermore, we have resolved earlier problems that were associated with this model.engBlackwell Publishing© 2003 公益社団法人日本水産学会© 2003 The Japanese Society of Fisheries Sciencefishing gearlumped mass modelnumerical simulationsupple netValidity and visualization of a numerical model used to determine dynamic configurations of fishing nets網地の形状と運動に関する数値計算モデルの妥当性と可視化についてarticle (author version)鈴木, 勝也高木, 力清水, 孝士平石, 智徳山本, 勝太郎梨本, 勝昭665.6Fisheries Science0919926869469570510.1046/j.1444-2906.2003.00676.x水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4352022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Suzuki, KatsuyaTakagi, TsutomuHiraishi, Tomonori2005-04-28T08:48:20Z2003-01-30http://hdl.handle.net/2115/435The schooling behavior of the fish Parapristipoma trilineatum (chicken grunt) was examined for a range of school sizes in a water tank containing a central columnar structure using a mathematical model of fish schooling behavior that was modified from that of Sannomiya and Matuda. The two-dimensional motion of individuals was captured on digital video over about 10 min, and these time-series data were used to tune the model to the experimental conditions. The model parameters were then used to evaluate schooling behavior quantitatively. Comparing force magnitudes between experimental conditions revealed that propulsive force was less in a tank without the central structure than in a tank with the central structure, under all conditions tested. These results indicate that the school was less active under unobstructed conditions. Propulsive force also decreased with increasing school size. Attractive and repulsive forces of the walls were dominant for smaller school sizes; the attractive and repulsive forces of the structure were significant only for the largest school tested (25 individuals). Thus, changes in behavioral patterns caused by the number of individuals or the presence of structures can be expressed using the mathematical model.engElsevierhttp://www.sciencedirect.com/science/journal/01657836Fish behaviorMathematical modelFractal dimension analysisVideo analysis of fish schooling behavior in finite space using a mathematical modelarticle (author version)鈴木, 勝也高木, 力平石, 智徳660Fisheries Research0165-783660131010.1016/S0165-7836(02)00081-4水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4222022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139田中, 順一鈴木, 直人高島, 敏行成田, 敏夫2005-04-21T05:50:57Z2004-02http://hdl.handle.net/2115/422「Mate 2004 エレクトロニクスにおけるマイクロ接合・
実装技術シンポジウム - ブロードバンドインターネット時代に向けた生産技術革新とサイエンス」論文集収録。We investigated interfacial dissolution reaction and thermal fatigue cycle properties for Sn-Ag-Al solder alloy/Cu. Sn-Ag-Al solder alloys showed better tensile and thermal fatigue property than Sn-3Ag-0.5Cu. The dissolution speed Cu into Sn-2Ag-0.1Al is higher than that into Sn-3Ag-0.5Cu. We guessed the difference of the morphology and the speed of crack propagation between Sn-2Ag-0.1Al and Sn-3Ag-0.5Cu was generated by changing microstructure of solder near reaction layer.jpn溶接学会(マイクロ接合研究委員会)Tensil propertiesThermal fatigue propertiesSn-Ag-Al系合金/Cu接合による界面溶解反応と熱疲労サイクル特性Interfacial Dissolution Reaction and Thermal Fatigue Cycle Property for Sn-Ag-Al Solder Alloy/Cuarticle (author version)Tanaka, JunichiSuzuki, NaotoTakashima, ToshiyukiNarita, Toshio56610th Symposium on Microjoining and Assembly Technology in Electronics5-6149154工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4472022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Tanaka, JunichiTakashima, ToshiyukiYoshimi, KenjiSerizawa, KojiNarita, Toshio2005-05-20T05:11:27Z2004-09http://hdl.handle.net/2115/447Proceedings of "Electronics Goes Green 2004+ : Driving Forces for Future Electronics"Addition of small amount of Al suppressed super cooling of Sn-Ag solders completely under normal cooling rates and the Sn-2Ag-0.1Al solder has a fine structure with an average grain sizes less than 10 micron-meter. Stress-strain measurements showed that the Sn-2Ag-0.1Al solder have fracture strain and toughness superior than the conventional Sn-Ag solders and wetting of the Sn-2Ag-0.1Al solder was moderate. Thermal cycling test was carried for the Cu / ceramic module with a 200 micro meter Sn-2Ag-0.1Al solder sheet between 233 and 398K. Dor comparison purpose conventional solders as Sn-3Ag-0.5Cu were also tested under the same thermal cycling condition. It was found that the Sn-2Ag-0.1Al solder was still sound after the 300 T.C. in contrast to results for Sn-3Ag-0.5Cu failed completely after the 150 T.C.. The crack formed in the module with a Sn-2Ag-0.1Al solder propagated within the solder, but it was passed through the solder / Cu substrate interface for the module with a Sn-3Ag-0.5Cu. Micro-structuring process of the solder with Al addition could be discussed.http://egg2004.izm.fraunhofer.de/engElectronics Goes Greenhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/Pb-freeSn-Ag-Al solderDevelopment of Micro-structured Sn-2Ag-0.1Al Solder with Highly THermal Fatigue Durabilityarticle (author version)田中, 順一566Electronics Goes Green 2004+ (EGG 2004) September 6-8, 2004, Berlin, Germany.工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4282022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Nagayama, MasafumiHaga, HisashiTakahashi, MasayukiSaitoh, TakayukiKawabata, Kazushige2005-04-27T03:24:12Z2004-11-01http://hdl.handle.net/2115/428Scanning probe microscopy and immunofluorescence observations indicated that cellular stiffness was attributed to a contractile network structure consisting of stress fibers. We measured temporal variations in cellular stiffness when cellular contractility was regulated by dosing with lysophosphatidic acid or Y-27632. This experiment reveals a clear relation between cellular stiffness and contractility: Increases in contractility cause cells to stiffen. On the other hand, decreases in contractility reduce cellular stiffness. In both cases, not only the stiffness of the stress fibers but also that of the whole of the cell varies. Immunofluorescence observations of myosin II and vinculin indicated that the stiffness variations induced by the regulation of cellular contractility were mainly due to rearrangements of the contractile actin network on the dorsal surface. Taken together, our findings provide evidence that the actin cytoskeletal network and its contractility features provide and modulate the mechanical stability of adherent cells.engElsevier Inc.http://www.sciencedirect.com/science/journal/00144827FibroblastScanning probe microscopyAtomic force microscopyLysophosphatidic acidY-27632Stress fiberActomyosinMechanical stabilityContribution of cellular contractility to spatial and temporal variations in cellular stiffnessarticle (author version)永山, 昌史芳賀, 永高橋, 正行斉藤, 隆幸川端, 和重463Experimental Cell Research00144827300239640510.1016/j.yexcr.2004.07.03415475004工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4362022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Uchida, TsutomuTakeya, SatoshiChuvilin, Evgene M.Ohmura, RyoNagao, JiroYakushev, Vladimir S.Istomin, Vladimir A.Minagawa, HidekiEbinuma, TakaoNarita, Hideo2005-05-022004-05-11http://hdl.handle.net/2115/436An edited version of this paper was published by AGU. Copyright 2004 American Geophysical Union.Decomposition conditions of methane hydrates in sediments were measured during formation-decomposition cycles. As test sediments, we used silica sand, sandstone, and clays (kaoline and bentonite), which are typical natural materials known as hydrate bearing sediments, and the range of samples cover a range of water saturating abilities. To better understand the results, we also used uniformly sized glass beads. Pore effects on decomposition of these materials were investigated by analyzing the pore-space distributions of the materials and by varying the initial water content of the samples. The results obtained for sand and sandstone samples indicated that the final decomposition temperatures were shifted lower than those for bulk hydrates at the same pressure. Temperature shifts were more negative for smaller initial water contents with the maximum shift being approximately -0.5 K. The results were consistent with those measured for glass beads with nearly the same particle size. For kaoline clays, the shift was at most -1.5 K. We conclude that the decomposition conditions are mainly affected by the pore sizes. The surface textures and mineral components had less influence on the results. We confirmed that glass beads mimic the effect of sediments for sand, sandstone, and kaoline clays, which have little-to-no swelling when put in contact with water. On the other hand, for bentonite particles, the results indicated that methane hydrates formed not only between the particles but also in the interlayers. A thermodynamic promoting effect was found for dilute bentonite solutions, although the positive decomposition-temperature shift was at most +0.5 K.engAmerican Geophysical Union (AGU)Methane hydratedecomposition temperature shiftnatural sedimentartificial fine particlepore space distributionwater contentDecomposition of methane hydrates in sand, sandstone, clays and glass beadsarticle (author version)内田, 努459Journal of Geophysical Research - Solid Earth (Chemistry and Physics of Minerals and Rocks/Volcanology)01480227109B5B0520610.1029/2003JB002771工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4332022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Gao, HongKawabata, Jun2005-04-28T01:34:25Z2005-03-01http://hdl.handle.net/2115/433The SAR studies suggested that the C-ring of baicalein (1) was not necessary for the activity, and validated the importance of 2,3,4-trihydroxybenzoyl structure of 1. Thus, a series of 2,3,4-trihydroxybenzoyl-containing flavonoid analogs were investigated for the α-previous termglucosidasenext term inhibitory activity. The results indicated that 5,6,7-trihydroxy-2-phenyl-4-quinolone (2) and 5,6,7-trihydroxyflavanone (4) showed the comparable activity to 1, while 3,5,6,7-tetrahydroxyflavone (7), 5,6,7-trihydroxyisoflavone (8), and 6-hydroxygenistein (9) showed moderate α-previous termglucosidasenext term inhibitory activity. In addition, it was found that 6-amino-5,7-dihydroxyflavone (16) was a more potent and specific rat intestinal α-previous termglucosidasenext term inhibitor than 1, and showed the comparable activity to acarbose. This is the first report on mammalian intestinal α-previous termglucosidasenext term inhibitory activity of 6-aminoflavones. Kinetic studies revealed that 16 inhibited both sucrose- and maltose-hydrolyzing activities of rat intestinal α-previous termglucosidasenext term uncompetitively.engElsevierhttp://www.sciencedirect.com/science/journal/09680896α-previous termGlucosidasestructure-activity relationship6-hydroxyflavones6-aminoflavonesα-Glucosidase inhibition of 6-hydroxyflavones. Part 3, Synthesis and evaluation of 2,3,4-trihydroxybenzoyl-containing flavonoid analogs and 6-aminoflavones as α-previous termglucosidasenext term inhibitorsarticle (author version)川端, 潤464Bioorganic & Medicinal Chemistry096808961351661166710.1016/j.bmc.2004.12.01015698784Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4342020-02-10T03:06:33Zhdl_2115_20046hdl_2115_138川端, 潤2005-04-28T04:26:23Z1998-07-28おもしろ有機化学ワールドhttp://hdl.handle.net/2115/434北海道大学一般教育科目「化学II、III」(基礎有機化学、2年生前期)の講義資料のダイジェスト版。2002年度までの農学部川端担当クラス分。http://www.geocities.jp/junk2515/chem2/chem2_00.htmhttp://www.geocities.jp/junk2515/index.htmljpn川端潤http://creativecommons.org/licenses/by-nc-sa/2.1/jp/有機化学基礎有機化学learningobjectKawabata, Jun437農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4382022-11-17T02:08:08Zhdl_2115_20042hdl_2115_136Wada, KeinoshinMizuno, MorimichiKomori, TakahideTamura, Masato2005-05-11T07:10:12Z2003-07-31http://hdl.handle.net/2115/438In mammalian cells, several observations indicate not only that phosphate transport probably regulates local inorganic phosphate (Pi) concentration, but also that Pi affects normal cellular metabolism, which in turn regulates apoptosis and the process of mineralization. To elucidate how extracellular Pi regulates cellular functions of pre-osteoblastic cells, we investigated the expression of type III sodium (Na)-dependent Pi transporters in rat bone marrow stromal cells and ROB-C26 pre-osteoblastic cells. The mRNA expression level of gibbon ape leukemia virus receptor (Glvr)-2 was increased by the addition of Pi in rat bone marrow stromal cells, but not in ROB-C26 or normal rat kidney (NRK) cells. In contrast, the level of Glvr-1 mRNA was not altered by the addition of extracellular Pi in these cells. The induction of Glvr-2 mRNA by Pi was inhibited in the presence of cycloheximide (CHX). Moreover, mitogen-activated protein kinase (MEK) /extracellular-signal-regulated kinase (ERK) pathway inhibitors; U0126 (1.4-diamino-2, 3-dicyano-1, 4-bis [2-amino-phenylthio] butadiene) and PD98059 (2-Amino-3-methoxyflavone) inhibited inducible Glvr-2 mRNA expression, but p38 MEK inhibitor SB203580 [4-(4-fluorophenyl)-2-(4-methyl-sulfinylphenyl)-5-(4pyridyl) imidazole] did not inhibit the induction of Glvr-2 mRNA expression, suggesting that extracellular Pi regulates de novo protein synthesis and MEK/ERK activity in rat bone marrow stromal cells, and through these, induction of Glvr-2 mRNA. Although Pi also induced osteopontin mRNA expression in rat bone marrow stromal cells but not in ROB-C26 and NRK cells, changes in cell viability with the addition of Pi were similar in both cell types. These data indicate that extracellular Pi regulates Glvr-2 mRNA expression, provide insights into possible mechanisms whereby Pi may regulate protein phosphorylation, and suggest a potential role for the Pi transporter in rat bone marrow stromal cells.engWiley-Liss, IncCopyright (c) 2003 Wiley-Liss, Inc., A Wiley CompanyosteoblastphosphateGlvrExtracellular inorganic phosphate regulates gibbon ape leukemia virus receptor-2/phosphate transporter mRNA expression in rat bone marrow stromal cellsarticle (author version)田村, 正人491.3Journal of Cellular Physiology0021-95411981404710.1002/jcp.10383歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4372022-11-17T02:08:08Zhdl_2115_20042hdl_2115_136Tsuji, KiyomiUno, KeijiZhang, Gui XiaTamura, Masato2005-05-092004-03http://hdl.handle.net/2115/437We studied the mRNA expression of osteoprotegerin (OPG), receptor activator of NF-kappa B ligand (RANKL), tissue inhibitor of matrix metalloprotease (TIMP)-1 and -2, and matrix metalloprotease (MMP)-1 and -2 by human periodontal ligament (PDL) cells under intermittent tensile stress using a Flexercell Strain Unit. Analysis by reverse transcriptase-polymerase chain reaction showed that mechanical force upregulated OPG mRNA. We also demonstrated that the protein concentration of OPG in conditioned medium increased upon loading with tensile stress, as determined by enzyme-linked immunosorbent assay. TIMP-1 and -2 mRNA levels also increased, whereas levels of RANKL, MMP-1, and MMP-2 mRNA were barely affected. We further examined the effect of loading with tensile stress and addition of Salmonella abortus equi lipopolysaccharide (LPS) on the mRNA expression of PDL cells. The amount of OPG mRNA induced by mechanical strain was found to decrease with the addition of LPS to cultures. The induction of OPG mRNA expression by stretching was inhibited in the presence of indomethacin or genistein, whereas TIMP-1 mRNA expression induced by stretching was inhibited by the addition of cycloheximide, suggesting that tensile stress regulates cyclooxygenase activities, tyrosine phosphorylation, and de novo protein synthesis in PDL cells through the induction of OPG and TIMP-1 mRNA expression. These results provide evidence that the mechanical stimulus of stretching is responsible for the observed regulation of bone resorption and tissue degradation in PDL tissue.engSpringer-Verlag Tokyo Inc.The original publication is available at www.springerlink.comosteoprotegerintensile stressperiodontal ligamentPeriodontal ligament cells under intermittent tensile stress regulate mRNA expression of osteoprotegerin and tissue inhibitor of matrix metalloprotease-1 and -2article (author version)田村, 正人491.3Journal of Bone and Mineral Metabolism0944-11742229410310.1007/s00774-003-0456-014999519歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4402022-11-17T02:08:08Zhdl_2115_20040hdl_2115_121Yabe, IchiroKawashima, A.Kikuchi, S.Higashi, T.Fukazawa, T.Hamada, T.Sasaki, H.Tashiro, K.2005-05-13T05:57:26Z2003-07http://hdl.handle.net/2115/440Objectives: Rippling muscle disease (RMD) is a rare myopathy characterized by percussion-induced rapid muscle contractions, muscle mounding, and rippling. Recently a caveolin-3 gene (CAV3) mutation was identified in patients with autosomal dominant RMD. The objective of this study was to determine whether a similar mutation was present in two Japanese families with this condition.
Patients and methods: Clinical examination, mutational analysis, and muscle immunohistochemistry were carried out in six patients from two Japanese RMD pedigrees.
Results: Apart from the atrophy of the intrinsic muscles in their hands and a slight muscle weakness in their fingers, the clinical features of our patients were compatible with RMD. Our investigation revealed a CAV3 missense mutation, i.e. Arg26Gln in both families. Immunohistochemistry performed on a muscle biopsy specimen showed reduced caveolin-3 surface expression.
Conclusions: Japanese RMD also appears to result from a CAV3 mutation.engBlackwell PublishingCopyright (c) 2003 Blackwell Munksgaardcaveolin-3rippling muscle diseaseCaveolin-3 gene mutation in Japanese with rippling muscle diseasearticle (author version)矢部, 一郎491Acta Neurologica Scandinavica000163141081475110.1034/j.1600-0404.2003.00083.x医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4452022-11-17T02:08:08Zhdl_2115_20052hdl_2115_160大平, 具彦2005-05-16T07:28:20Z2003http://hdl.handle.net/2115/445http://www.hokudai.ac.jp/lang/imc/imc-j/imc-j-1/imcjournal.htmlhttp://www.hokudai.ac.jp/lang/imc/imc-j/imc-j-1/ohira.pdfMexico, name of a "project" open to the future rather than a country or a state (Adolfo Castanon) -. The following text is the brief report of interviews on the "trans-cultural Mexicanity," which were held with Mexican writers, critics and researchers in August 2002 in Mexico City. This report will be integrated into the book (in preparation) on the theme of Trans-Culture, Surrealism and Primitive Art.jpn北海道大学大学院国際広報メディア研究科http://creativecommons.org/licenses/by-nc-sa/2.1/jp/メキシコ出張報告記Report on the Field Trip to Mexicoarticle (author version)Ohira, Tomohiko295国際広報メディアジャーナル1199206国際広報メディア・観光学院,メディア・コミュニケーション研究院 (Graduate School of International Media, Communication and Tourism Studies / Research Faculty of Media and Communication)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)https://eprints.lib.hokudai.ac.jp/dspace/retrieve/243067/photo1.jpg.jpg
oai:eprints.lib.hokudai.ac.jp:2115/4462022-11-17T02:08:08Zhdl_2115_20052hdl_2115_160大平, 具彦2005-05-16T07:31:03Z2004http://hdl.handle.net/2115/446http://www.hokudai.ac.jp/lang/imc/imc-j/imc-j-2/imcj2.htmlhttp://www.hokudai.ac.jp/lang/imc/imc-j/imc-j-2/ohira.pdfThis report is the resume of interviews held with Martinican and Brazilian writers, critics and researchers in August 2003, about Martinican grand poet Aimé Césaire and his cultural concept, Brazilian original writer Oswald de Andrade and his inter-cultural ideas.
This report will be intergrated into the book (in preparation) on the theme of Trans-Culture, Surrealism and Primitive Art.jpn北海道大学大学院国際広報メディア研究科http://creativecommons.org/licenses/by-nc-sa/2.1/jp/仏領海外県マルチニック&ブラジル出張報告記Report on the Field Trip to Martinique (French overseas prefecture) and Brazilarticle (author version)Ohira, Tomohiko295国際広報メディアジャーナル2245255国際広報メディア・観光学院,メディア・コミュニケーション研究院 (Graduate School of International Media, Communication and Tourism Studies / Research Faculty of Media and Communication)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)https://eprints.lib.hokudai.ac.jp/dspace/retrieve/242772/photo2.jpg.jpg
oai:eprints.lib.hokudai.ac.jp:2115/4702019-04-18T06:45:10Zhdl_2115_20070hdl_2115_157Shibata, HideakiSugawara, OsamuToyoshima, HisanoWondzell, Steven M.Nakamura, FutoshiKasahara, TamaoSwanson, Frederick J.Sasa, Kaichiro2005-05-26T07:10:15Z2004-05http://hdl.handle.net/2115/470engSpringer Science+Business Media (formerly: Kluwer Academic Publishers)The original publication is available at www.springerlink.comGroundwater chemistryHydrologyHyporheic Exchange flowMODFLOWNitrogenNutrient DynamicsRiparian zoneSoil waterNitrogen dynamics in the hyporheic zone of a forested stream during a small storm, Hokkaido, Japanarticle (author version)柴田, 英昭613Biogeochemistry0168-25636918310410.1023/B:BIOG.0000031042.90585.0a北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4762022-11-17T02:08:08Zhdl_2115_20042hdl_2115_136Zhang, Gui XiaMizuno, MorimichiTsuji, KiyomiTamura, Masato2005-05-30T05:23:34Z2004-06http://hdl.handle.net/2115/476Matrix extracellular phosphoglycoprotein (MEPE)/ osteoblast/osteocyte factor 45 (OF45) is a recently isolated RGD-containing matrix protein that acts as the tumor-derived phosphaturic factor in oncogenic hypophosphatemic osteomalacia. It is also highly expressed by osteoblasts and osteocytes. We examined the regulation of MEPE/OF45 mRNA expression in osteoblastic cells derived from high-density cultures of primary rat bone marrow stromal cells incubated with dexamethasone, β-glycerophosphate, and ascorbic acid. The level of MEPE/OF45 mRNA in these cells was down-regulated by the addition of fibroblast growth factor 2 (FGF2) for 48 h. These effects were observed in a dose-dependent manner between 2 and 10 ng/mL. FGF2 also reduced the expression of osteocalcin mRNA in these cells. In contrast, bone sialoprotein mRNA expression was increased by FGF2, while α1(I) procollagen mRNA expression was not altered. Additionally, neither Runx2 and osterix mRNA expression nor cell proliferation were affected by the addition of FGF2 in these high-density cultures, indicating that regulation by FGF2 may not be dependent on these transcription factors or on the proliferation of cells. Experiments using actinomycin D indicated that FGF2 decreased the stability of the MEPE/OF45 mRNA. Moreover, inhibition of a specific mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase kinase (MEK) by PD98059 blocked FGF2-regulated MEPE/OF45 expressions, indicating that this regulation requires the MAPK pathway. These results suggest that MEPE/OF45 gene is one of the targets of FGF2 and may play an important role during bone formation and calcification.engHumana PressMEPE/OF45FGF2osteoblastRegulation of mRNA Expression of Matrix Extracellular Phosphoglycoprotein (MEPE)/ Osteoblast/Osteocyte Factor 45 (OF45) by Fibroblast Growth Factor 2 in Cultures of Rat Bone Marrow-derived Osteoblastic Cellsarticle (author version)田村, 正人464.27Endocrine0969711X241152410.1385/endo:24:1:015歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/4772022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Kawamura, ShusoTakekura, KazuhiroItoh, Kazuhiko2005-05-31T07:44:57Z2004-07-19http://hdl.handle.net/2115/477Proceedings of "International Quality Grains Conference : a Global Symposium on Quality-Assured, Traceable and Biosecure Grains and Oilseeds for the 21st Century" in July 19-22, 2004.A new technique for storing rice at a temperature below ice point using fresh chilly air was developed. Freezing temperatures and extents of freezing injury of rice with various levels of moisture content were studied, and effects of temperature below ice point during a four-year storage period on the physiological properties of rice were investigated. Rice with moisture content of less than 17.8% did not freeze even at a temperature of -80°C. Low temperature maintained the vitality of rice, minimized physiological activities and starch deterioration in rice, and preserved rice quality. One thousand tons of rough rice was stored in two silos from the end of November 1999 and was aerated from the bottom to top of each silo using fresh chilly air in January 2000. The rough rice temperature fell below ice point. At the end of July 2000, the rough rice temperature in the center of each silo was still below ice point. The rice quality stored in the silos was preserved at a level similar to that of freshly harvested rice. A combination of rice storage below ice point and utilization of fresh chilly air enables the rice quality to be preserved at a high level without the requirement of a cooling unit or electricity. The use of this storage technique has been increasing in cold regions after the on-farm experiment. In Hokkaido, the northernmost island in Japan, 26 grain-elevators have been constructed since 1996. The storage capacity of rough rice was 115,000 t at the end of 2003.http://www.iqgc.org/engInternational Quality Grains Conferencehttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/Rice qualityFresh chilly airSuper-low-temperature storage of riceRice Quality Preservation during On-Farm Storage Using Fresh Chilly Airproceedings (author version)川村, 周三伊藤, 和彦610International Quality Grains Conference. July 19-22, 2004, Indianapolis, Indiana, USAAccepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5132022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Xie, PingMishima, Teruhito2005-07-27T04:19:26Z2005-02-01http://hdl.handle.net/2115/513We experimentally demonstrate fast switching of light propagation and phase conjugate generation in a BaTiO3:Ce crystal with a high efficiency. The switching mechanism is based on the phase mismatch in photorefractive beam coupling between an incident beam and a fanning beam. The phase mismatch is induced by an externally applied electric field via Pockels effect. In our experiment we obatin a voltage-generator-determined switching time of the order of 10 μs. The required voltage to reduce the output phase conjugate power by more than 90% is about only 100 volts for our 3.8 mm-thick crystal.engElsevierhttp://www.sciencedirect.com/science/journal/00304018Photorefractive effectOptical switchingPhase conjugationPockels effectPhase mismatchFast switching of light propagation in a photorefractive crystal via Pockels effectarticle (author version)三島, 瑛人547Optics Communications003040182461-3293410.1016/j.optcom.2004.10.071情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5142022-11-17T02:08:08Zhdl_2115_20074hdl_2115_161Shinano, TakuroNanamori, M.Dohi, M.Wasaki, J.Osaki, M.2005-07-27T09:27:41Z2005-02http://hdl.handle.net/2115/514Plants develop strategies to recycle phosphorus so that all organs receive adequate amount of phosphorus, especially new growing organs. To evaluate the metabolic adaptation of rice plant under phosphorus deficient condition, we selected several genes relating phosphorus utilizing efficiency in the cell. Phosphoenolpyruvate carboxylase, triose phosphate translocator, phosphoenolpyruvate/inorganic phosphate translocator (PPT), pyruvate kinase, NAD dependent glyceraldehydes-3-phosphate dehydrogenase, NADP dependent glyceraldehydes-3-phosphate dehydrogenase, were selected because of their important role in the phosphorus utilization in the cell and 2 consisting proposed bypass pathway to save phosphate. Most dramatic change was observed in the expression level of PPT (which tranport phosphoenolpyruvate (PEP) in the cytosol to chloroplast), thus we consider that PEP may play an important role in maintaining carbon metabolism under phosphate deficient condition.engSpringer Science+Business Media (formerly: Kluwer Academic Publishers)The original publication is available at www.springerlink.commRNA expressionOryza sativaPhosphorus deficiencyBypass pathwayReal-time PCREvaluation of phosphorus starvation inducible bypasses to increase the effieciency of phosphorus utilization in riceEvaluation of phosphorus starvation inducible genes relating to efficient phosphorus utilization in ricearticle (author version)信濃, 卓郎470616Plant and Soil0032079X2691-2818710.1007/s11104-004-5026-2創成研究機構 (Creative Research Institution)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5152022-11-17T02:08:08Zhdl_2115_20074hdl_2115_161Nanamori, MasahikoShinano, TakuroWasaki, JunYamamura, TakuyaRao, Idupulapati M.Osaki, Mitsuru2005-07-28T08:27:01Z2004-04http://hdl.handle.net/2115/515This is a pre-copy editing, author-produced PDF of an article accepted for publication in "Plant and Cell Physiology" following peer review. The definitive publisher-authenticated version is available online.The Brachiaria hybrid cv. Mulato is well adapted to low-fertility acid soils deficient in phosphorus (P). To study the grassy forage’s mechanisms for tolerating low P supply, we compared it with rice (Oryza sativa L. cv. Kitaake). We tested by using nutrient solution cultures, and quantified the effects of P deficiency on the enzymatic activities of phosphohydrolases and on carbon metabolism in P-deficient leaves. While P deficiency markedly induced activity of phosphohydrolases in both crops, the ratio of inorganic phosphorus to total P in leaves was greater in Brachiaria hybrid. Phosphorus deficiency in leaves also markedly influenced the partitioning of carbon in both crops. In the Brachiaria hybrid, compared with rice, the smaller proportion of 14C partitioned into sugars and the larger proportion into amino acids and organic acids in leaves coincided with decreased levels of sucrose and starch. Hence, in P-deficient leaves of the Brachiaria hybrid, triose-P was metabolized into amino acids or organic acids. Results thus indicate that the Brachiaria hybrid, compared with rice, tolerates low P supply to leaves by enhancing sugar catabolism and by inducing the activity of several phosphohydrolases. This apparently causes rapid P turnover and enables the Brachiaria hybrid to use P more efficiently.engOxford University PressBrachiaria hybridLow P tolerancePhosphohydrolasePhotosynthate distributionRice (Oryza sativa L.)Low Phosphorus Tolerance Mechanisms: Phosphorus Recycling and Photosynthate Partitioning in the Tropical Forage Grass, Brachiaria Hybrid cultivar Mulato Compared with Ricearticle (author version)信濃, 卓郎470Plant and Cell Physiology0032078145446046910.1093/pcp/pch056創成研究機構 (Creative Research Institution)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5162019-03-15T08:29:02Zhdl_2115_20046hdl_2115_138江沢, 辰広斎藤, 勝晴青野, 俊裕2005-08-01T06:08:17Z2004http://hdl.handle.net/2115/516jpn日本土壌肥料学会アーバスキュラー菌根共生リン酸代謝炭素代謝ポリリン酸アーバスキュラー菌根における物質代謝と輸送:4億年前に確立された共生システムへの温故知“最新”的アプローチMetabolism and translocation in arbuscular mycorrhiza: approaching the symbiotic system established 400 million years agoarticle (author version)Ezawa, TatsuhiroSaito, KatsuharuAono, Toshihiro474.65日本土壌肥料学雑誌756737746Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5362019-06-24T02:36:03Zhdl_2115_20054hdl_2115_526川島, 真2005-08-03T02:00:04Z2005-03-20「東亞視域中的國籍、移民與認同」研討會http://www.juris.hokudai.ac.jp/%7Eshin/010/sympo/taiwan-univworkshop.htmlhttp://hdl.handle.net/2115/536「東亞視域中的國籍、移民與認同」研討會: 主辦單位:臺灣大學東亞文明研究中心(代表者甘懷真教授) / 日本学術振興会「不平等條約體制下的東亞外國人法律地位之實例研究」計畫(代表者貴志俊彥教授),日期:2005年3月20日,地點:臺灣大學 東亞文明研究中心演講廳jpn川島真http://creativecommons.org/licenses/by-nc-sa/2.1/jp/中国における外事警察制度の形成article (author version)Kawashima, Shin222公共政策学教育部・公共政策学連携研究部 (Graduate School of Public Policy / Faculty of Public Policy)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5382019-06-24T02:36:03Zhdl_2115_20054hdl_2115_526川島, 真2005-08-03T08:46:14Z2004-08北洋政府的中国外交学術討論会, 2004.8http://www.juris.hokudai.ac.jp/%7Eshin/010/sympo/WashingtonSystem%28S.K.2004%29.htmhttp://hdl.handle.net/2115/538「北洋政府的中国外交学術討論会」(2004.08.27-28,於 復旦大学)における報告原稿zho川島真http://creativecommons.org/licenses/by-nc-sa/2.1/jp/華盛頓體制Washington Systemワシントン体制入江昭再論華盛頓會議體制proceedings (author version)Kawashima, Shin222北洋政府的中国外交学術討論会公共政策学教育部・公共政策学連携研究部 (Graduate School of Public Policy / Faculty of Public Policy)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5372022-11-17T02:08:08Zhdl_2115_20054hdl_2115_526川岛, 真2005-08-03T08:40:22Z2004-09近代中国東北部文化国際研討会http://www.juris.hokudai.ac.jp/~shin/010/sympo/Manchuria_kanntaizi.htmlhttp://hdl.handle.net/2115/537近代中国東北部文化国際研討会(2004.9.13-15,長春)における報告原稿伪满洲国与广播的关系被强烈地连结在一起。广播的「快速敏捷性」「广泛性」「越境性」等特性,每一个都实现了伪满洲国的理想-「多语言」「多样文化」「理想的扩大」。但是,相反地广播也创造出「边界」。那「边界」显现在电波圈﹑人为控制的语言领导权﹑节目编排﹑等社会机能中。zho川島真http://creativecommons.org/licenses/by-nc-sa/2.1/jp/伪满洲国的广播政策proceedings (author version)Kawashima, Shin222.5公共政策学教育部・公共政策学連携研究部 (Graduate School of Public Policy / Faculty of Public Policy)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5392022-11-17T02:08:08Zhdl_2115_20074hdl_2115_161Unno, YusukeOkubo, KenzoWasaki, JunShinano, TakuroOsaki, Mitsuru2005-08-04T05:14:44Z2005-03http://hdl.handle.net/2115/539In the rhizosphere, phosphorus (P) levels are low due to P uptake into the roots. Rhizobacteria live on carbon (C) exuded from roots, and may contribute to plant nutrition by liberating P from organic compounds such as phytates. We isolated over 300 phytate (Na-inositol hexa-phosphate; Na-IHP)-utilizing bacterial strains from the rhizosheath and the rhizoplane of Lupinus albus (L.). Almost all of the isolates were classified as Burkholderia based on 16S rDNA sequence analysis. Rhizosheath isolates cultured with Na-IHP as the only source of C and P showed lower P uptake at the same extracellular phytase activity than rhizoplane strains, suggesting that bacteria from the rhizosheath utilized phytate as a C source. Many isolates also utilized insoluble phytate (Al-IHP and/or Fe-IHP). In co-culture with Lotus japonicus seedlings, some isolates promoted plant growth significantly.engBlackwell Publishing(c)2005 Blackwell Publishing Ltd. and The Society for Applied Microbiology. Published jointly with the Society for Applied MicrobiologyPlant growth promotion abilities and microscale bacterial dynamics in the rhizosphere of Lupin analysed by phytate utilization abilityarticle (author version)信濃, 卓郎470Environmental Microbiology146229127339640410.1111/j.1462-2920.2004.00701.x15683400創成研究機構 (Creative Research Institution)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5402022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Kusakabe, RieTochinai, ShinKuratani, Shigeru2005-08-04T10:29:22Z2003-03-20http://hdl.handle.net/2115/540Evolution in development can be viewed as a sequence of changes in gene regulation. To investigate the cross-species compatibility of 5’ upstream regulatory regions, we introduced exogenous gene constructs derived from a gnathostome genome into fertilized eggs of the Japanese lamprey, Lampetra japonica, a sister group of the gnathostomes. Eggs were injected with gene constructs in which a sequence encoding the green fluorescent protein (GFP) had been located downstream of either a virus promoter or 5’ regulatory regions of medaka actin genes. Reporter gene expression was recorded for more than a month starting two days after injection. Although the expression patterns were highly mosaic and differed among individuals, GFP was expressed predominantly in the striated muscles of lamprey embryos when driven by the 5’ upstream regions of the medaka muscle actin genes. This implies that a pan-vertebrate muscle-specific gene regulatory mechanism may have evolved before the agnathan/gnathostome divergence. This gene-transfer technique potentially facilitates the visualization of cells in various differentiating tissues throughout development. The introduction of developmental genes of the lamprey or other animals into lamprey embryos is another potentially important application, one that could provide us with information on the evolutionary changes in functions of genes or gene cascades. J. Exp. Zool. (Mol.Dev. Evol.) 296B:87–97, 2003engWiley-Liss, Inc.Copyright (c) 2003 Wiley-Liss, Inc.Expression of Foreign Genes in Lamprey Embryos: An Approach to Study Evolutionary Changes in Gene Regulationarticle (author version)栃内, 新487.45Journal of Experimental Zoology Part B: Molecular and Developmental Evolution15525007296B1879710.1002/jez.b.11理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5462022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Tsuda, Ichiro2005-08-04T11:37:18Z2004-08http://hdl.handle.net/2115/546Kampis proposes the study of chaotic itinerancy, pointing out its significance in domains of cognitive science and philosophy. He has discovered in the concept of chaotic itinerancy the possibility for a new dynamical approach that elucidates mental states with a physical basis. This approach may therefore provide the means to go beyond the connectionist approach. In accordance with his theory, I here highlight three issues regarding chaotic itinerancy: transitory dynamics, diversity, and self-modifying system.engCambridge University PressCopyright (c) 2004 Cambridge University PressChaotic itinerancy is a key to mental diversityarticle津田, 一郎007Behavioral and Brain Sciences0140525X274585602理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5472022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Kusakabe, RieTakechi, MasakiTochinai, ShinKuratani, Shigeru2005-08-05T05:42:04Z2004-03-24http://hdl.handle.net/2115/547Agnathan lampreys retain ancestral characteristics of vertebrates in the morphology of skeletal muscles derived from two mesodermal regions: trunk myotomes and unsegmented head mesoderm. During lamprey development, some populations of myoblasts migrate via pathways that differ from those of gnathostomes. To investigate the evolution of skeletal muscle differentiation in vertebrates, we characterize multiple contractile protein genes expressed in the muscle cells of the Japanese lamprey, Lethenteron japonicum. Lamprey actin gene LjMA2, and myosin heavy chain (MyHC) genes LjMyHC1 and LjMyHC2 are all expressed in the developing skeletal muscle cells of early embryos. However, LjMyHC1 and LjMyHC2 are expressed only in cells originating from myotomes, while LjMA2 is expressed in both myotomal and head musculature. Thus, in lampreys, myotomes and head mesoderm differ in the use of genes encoding contractile protein isoforms. Phylogenetic tree analyses including lamprey MyHCs suggest that the variety of muscle MyHC isoforms in different skeletal muscles may correspond to the morphological complexity of skeletal muscles of different vertebrate species. Another lamprey actin gene LjMA1 is likely to be the first smooth muscle actin gene isolated from non-tetrapods. We conclude that, in vertebrate evolution, the different regulatory systems for striated and smooth muscle-specific genes may have been established before the agnathan/gnathostome divergence. J. Exp. Zool. (Mol. Dev. Evol.) 302B:121–133, 2004.engWiley-Liss, Inc.Copyright (c) 2004 Wiley-Liss, Inc.Lamprey Contractile Protein Genes Mark Different Populations of Skeletal Muscles During Developmentarticle (author version)栃内, 新487.45Journal of Experimental Zoology Part B: Molecular and Developmental Evolution15525007302B12113310.1002/jez.b.20009理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5532022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Guan, TongYoshida, MasanoriOta, DaisukeFukuhara, TsuyoshiHara, Shoji2005-08-05T08:28:10Z2005-08http://hdl.handle.net/2115/553Insect sex pheromone analogs having a fluorine atom on their double bonds, (9E,11E)-1-acetoxy-9-fluorotetradecadiene, (10E,12E)-13-fluorohexadecadien-1-ol, (9Z,11E)-1-acetoxy-9-fluorotetradecadiene, (10E,12Z)-13-fluorohexadecadien-1-ol were stereoselectively synthesized using cross-coupling reactions of alkenylboranes with (E)- or (Z)-2-fluoro-1-iodo-1-alkenes, stereoselectively prepared from 1-alkynes by our currently developed methods.engElsevierhttp://www.sciencedirect.com/science/journal/00221139Pheromone analogsFluorineConjugated dieneCross-coupling reactionStereoselective synthesis of insect sex pheromone analogs having a fluorine atom on their double bondsarticle (author version)原, 正治430Journal of Fluorine Chemistry0022113912681185119010.1016/j.jfluchem.2005.05.006工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5572022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Yu, Hong-WenNakano, YousukeFukuhara, TsuyoshiHara, Shoji2005-08-082005-06http://hdl.handle.net/2115/557vic-Difluoro compounds can be directly prepared from epoxides by reaction with Et3N-3HF and DFMBA under microwave irradiation conditions.engElsevierhttp://www.sciencedirect.com/science/journal/00221139Microwave-irradiationEpoxideFluorinationvic-DifluorideDirect conversion of epoxides to vic-difluoridesarticle (author version)原, 正治430Journal of Fluorine Chemistry00221139126696296610.1016/j.jfluchem.2005.04.005工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5582022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Furuya, TsukasaFukuhara, TsuyoshiHara, Shoji2005-08-08T01:00:24Z2005-05http://hdl.handle.net/2115/558Synthesis of gem-difluorides from aldehydes was effectively achieved using DFMBA and Et3N-3HF under microwave irradiation or conventional thermal heating.
Both aromatic and aliphatic aldehydes could be converted to the corresponding gem-difluorides in good yields.engElsevierhttp://www.sciencedirect.com/science/journal/00221139Microwave-irradiationAldehydeFluorinationgem-DifluorideSynthesis of gem-difluorides from aldehydes using DFMBAarticle (author version)原, 正治430Journal of Fluorine Chemistry00221139126572172510.1016/j.jfluchem.2005.02.004工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5592022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Kawamoto, ShishinYoshida-Noro, ChikakoTochinai, Shin2005-08-08T09:29:52Z2005-07-12http://hdl.handle.net/2115/559The Enchytraeida Oligochaeta Enchytraeus japonensis propagates asexually by spontaneous autotomy. Normally, each of the 5–10 fragments derived from a single worm regenerates a head anteriorly and a tail posteriorly. Occasionally, however, a head is formed posteriorly in addition to the normal anterior head, resulting in a bipolar worm. This phenomenon prompted us to conduct a series of experiments to clarify how the head and the tail are determined during regeneration in this species. The results showed that (1) bipolar head regeneration occurred only after artificial amputation, and not by spontaneous autotomy, (2) anesthesia before amputation raised the frequency of bipolar head regeneration, and (3) an extraordinarily high proportion of artificially amputated head fragments regenerated posterior heads. Close microscopic observation of body segments showed that each trunk segment has one specific autotomic position, while the head segments anterior to the VIIth segment do not. Only the most posterior segment VII in the head has an autotomic position. Examination just after amputation found that the artificial cutting plane did not correspond to the normal autotomic position in most cases. As time passed, however, the proportion of worms whose cutting planes corresponded to the autotomic position increased. It was suspected that the fragments autotomized after the artificial amputation (corrective autotomy). This post-amputation autotomy was probably inhibited by anesthesia. The rate at which amputated fragments did not autotomize corresponded roughly to the rate of bipolar regeneration. It was hypothesized then that the head regenerated posteriorly if a fragment was not amputat.engWiley-Liss, Inc.Copyright (c) 2005 Wiley-Liss, Inc.Bipolar head regeneration induced by artificial amputation in Enchytraeus japonensis (Annelida, Oligochaeta)article (author version)栃内, 新483.93Journal of Experimental Zoology Part A: Comparative Experimental Biology15488969303A861562710.1002/jez.a.20516013048理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5602022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Ayuba, ShinichiHiramatsu, ChiharuFukuhara, TsuyoshiHara, Shoji2005-08-09T01:05:23Z2004-12-06http://hdl.handle.net/2115/560In the reaction of IF5 with alkyl aryl sulfides in heptane under reflux conditions, the arylthio group migrated once and three fluorine atoms were selectively introduced on the alkyl chain. In order to find the reason why the reaction stopped at the trifluorination step, we examined the oxidation potentials of the starting material, a reaction intermediate, and the product, and the time course of the reactions.engElsevierhttp://www.sciencedirect.com/science/journal/00404020HalogenationHypervalent elementsMigrationSulfidesSelective trifluorination of alkyl aryl sulfides using IF5article (author version)原, 正治437Tetrahedron004040206050114451154110.1016/j.tet.2004.09.076工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5612020-04-01T01:09:37Zhdl_2115_20054hdl_2115_526川島, 真2005-08-09T04:39:35Z2004-12-11http://www.juris.hokudai.ac.jp/%7Eshin/010/sympo/osaka-gendaishiken.htmlhttp://hdl.handle.net/2115/561中国現代史研究会シンポジウム(大阪,2004年12月11日)『「東アジア」における地域秩序と現代中国 -帝国論の視点から-』における報告原稿。jpn川島真http://creativecommons.org/licenses/by-nc-sa/2.1/jp/『普通の国』と『大国』の間 : 近代中国外交から見るproceedings (author version)Kawashima, Shin222中国現代史研究会シンポジウム 「東アジア」における地域秩序と現代中国 : 帝国論の視点から公共政策学教育部・公共政策学連携研究部 (Graduate School of Public Policy / Faculty of Public Policy)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5752022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Kobayashi, ShingoYoneda, AtushiFukuhara, TsuyoshiHara, Shoji2005-08-10T04:29:01Z2004-08-02http://hdl.handle.net/2115/575Deoxyfluorination of alcohols was carried out using N,N-diethyl-α,α-difluoro-(m-methylbenzyl)amine (DFMBA). Primary alcohols were effectively converted to fluorides under microwave irradiation or conventional heating. Deoxyfluorination of an anomeric hydroxy group in sugars by DFMBA proceeded at below room temperature and glycosyl fluorides could be obtained in good yields. The deoxyfluorination reaction chemoselectively proceeded and various protecting groups on the sugar can survive under the reaction conditions.engElsevierhttp://www.sciencedirect.com/science/journal/00404020DeoxyfluorinationDFMBAFluoro sugarsMicrowaveDeoxyfluorination of alcohols using N,N-diethyl-α,α-difluoro-(m-methylbenzyl)aminearticle (author version)原, 正治437Tetrahedron0040402060326923693010.1016/j.tet.2004.05.089工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5762022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Kobayashi, ShingoYoneda, AtushiFukuhara, TsuyoshiHara, Shoji2005-08-11T02:29:49Z2004-02-02http://hdl.handle.net/2115/576Deoxyfluorination of a hydroxy group in rbohydrates was carried out using N,N-diethyl-α,α-difluoro-(m-methylbenzyl)amine. A primary hydroxy group in carbohydrates was effectively converted to the corresponding fluoride under micro-wave irradiation or at 100°C. Deoxyfluorination of hydroxy groups at the anomeric position proceeded at below room temperature, and glycosyl fluorides could be obtained in good yields. The reaction chemoselectively proceeded, and various protecting groups of carbohydrates can survive under the reaction conditions.engElsevierhttp://www.sciencedirect.com/science/journal/00404039CarbohydratesHalogenationMicrowave heatingSelective synthesis of fluorinated carbohydrates using N,N-diethyl-α,α-difluoro-(m-methylbenzyl)aminearticle (author version)原, 正治437Tetrahedron Letters004040394561287128910.1016/j.tetlet.2003.11.121工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/186422022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Chakrabarti, Bikas K.Inoue, Jun-ichi2007-02-22T01:06:21Z2006-06http://hdl.handle.net/2115/18642既に下記の物理・数学関連のプレプリントサーバに登録されています。We introduce a quantum antiferromagnet model, having exactly soluble thermodynamic properties. It is an infinite range antiferromagnetic Ising model put in a transverse field. The free energy gives the ground state energy in the zero temperature limit and it also gives the low temperature behaviour of the specific heat, the exponential variation of which gives the precise gap magnitude in the excitation spectrum of the system. The detailed behaviour of the (random sublattice) staggard magnetisation and susceptibilities are obtained and studied near the N\'eel temperature and the zero temperature quantum critical point.engIndian Journal of PhysicsCondensed Matter, abstract;cond-mat/0508218http://xxx.lanl.gov/abs/cond-mat/0508218http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/preprints.htmlStatistical mechanicsAntiferromagnetsQuantum spin systemsA solvable quantum antiferromagnet modelarticle (author version)428Indian Journal of Physics0019-5480806609612情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6312022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116行木, 孝夫2005-09-13T02:02:05Z2003-06http://hdl.handle.net/2115/631ライフゲームに代表されるセルオートマトンは簡明な定義からなる系であ
りながら多様な挙動を示すものとして広く研究されてきた。
本稿では
エルゴード理論、力学系のごく簡単な導入を行い、
エントロピーや変分原理など関連する事項を整理するとともに
力学系としてのセルオートマトンの特徴を明らかにする。jpn日本応用数理学会Copyright (c) 2003 The Japan Society for Industrial and Applied Mathematics(日本応用数理学会)セルオートマトンエルゴード理論力学系セルオートマトンとエルゴード理論article (author version)NAMIKI, Takao414応用数理09172270132125136理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6582009-09-15T04:04:18Zhdl_2115_20040hdl_2115_121久保, 直樹2005-09-29T01:41:47Z2004-0709120327http://hdl.handle.net/2115/658jpn日本放射線技術学会 北海道部会PETCTPET-CT重ね合わせ腫瘍の描出を考える 撮影技術から放射線治療まで 核医学 PETとCTの重ね合わせarticle (author version)Kubo, Naoki492.1北海道放射線技術雑誌0912032764159163医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6642022-11-17T02:08:08Zhdl_2115_20040hdl_2115_121久保, 直樹2005-09-30T08:30:09Z2004-0709120327http://hdl.handle.net/2115/664小型被写体用超高エネルギー用コリメータの設計と作製を行った.作製したピンホールコリメータは,径0.6 mmで許容角度は13°であった.このピンホールから被写体までの距離と幾何学的感度,および距離と視野サイズの関係を計算した.次にガンマカメラに装着して18Fにおける総合空間分解能と総合感度を測定した.また超高エネルギー用コンバージングコリメータも設計した.ピンホールコリメータの計算結果は,距離を近づけると幾何学的感度は高くなったが,視野は狭まった. 測定した結果においてFWHMは2.4 mm,FWTMは9.5 mm,総合感度は6.8 counts sec –1 MBq–1であった.一方,コンバージングコリメータは視野の大きさの制限,視野周辺部の感度低下を受けないことが示唆された.このようにピンホールコリメータで超高エネルギーの高空間分解能撮像に成功した.またコンバージングコリメータの方は,臨床機への応用も可能と考えられた.Recently, small object imaging using positron emitters, such as fluorine-18-2-deoxyglucose, has focused on basic nuclear medicine techniques. We have designed and developed ultra-high-energy high-resolution collimators for small object imaging. Firstly, we produced an ultra-high-energy pinhole collimator. The thickness of the lead shielding was 30 mm. The pinhole diameter of knife-edge aperture was 0.6 mm. The acceptance angle was 13°. This cylinder was equipped with a non-collimator gamma camera at a distance of 30.5 cm. The radius of rotation was 6 cm and the magnification was 5.1 times. In simulation calculations, as the pinhole-object distance decreased, geometric sensitivity increased geometrically. However, as the pinhole-object-distance decreased, field-of-view (FOV) decreased linearly. Spatial resolution was measured using a line source of 18F and was 2.4 mm at full-width-at-half-maximum and 9.5 mm at full-width-at-tenth-maximum. The sensitivity of the system was 6.8 counts sec–1 MBq–1 using a point source of 18F. In addition, sensitivity at the rim of FOV was lower than that at the center. Next, we designed an ultra-high-energy converging collimator. It was found that the converging collimator had uniform sensitivity over the FOV. Also, the FOV at smaller collimator-object distances was not as restricted as the ultra-high-energy pinhole collimator. Thus, we demonstrated that high-resolution images for ultra-high-energy imaging could be acquired using the pinhole collimator. Moreover, we believe that the ultra-high-energy converging collimator could be available for a clinical study.jpn日本放射線技術学会 北海道部会ultra-high-energy imagingconverging collimatorpinhole collimator超高エネルギー用高空間分解能・高感度コリメータの設計についてDesign of ultra-high-energy, high-resolution and high-sensitivity collimators for gamma cameras.article (author version)Kubo, Naoki492.1北海道放射線技術雑誌644551医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5952022-11-17T02:08:08Zhdl_2115_20040hdl_2115_121久保, 直樹2005-08-23T05:12:33Z2003-07Innervision,18(8),2003,p.3409138919http://hdl.handle.net/2115/595PETにおける三次元関心領域抽出ソフトウェア,心電図同期心筋SPECT用解析アルゴリズムの違いによる心基部弁膜面の再現性,心電図同期心筋PET用心筋厚自動測定ソフトウェア,の開発と検討を行った.その結果,PETからの三次元関心領域抽出を実現でき,心基部弁膜面設定における閾値法の再現性の高さを立証することができた.また,心電図同期PETから心筋厚を算出するソフトウェアを開発することができた.これにより代謝のみではなく,心筋厚から左心室機能や心疾患の判定情報を与えることが可能となると考えられた.jpnインナービジョンPETSPECT三次元イメージングソフトウェア心電図同期心血流イメージング心臓疾患(放射線核種診断)PET・SPECTにおける機能・放射能分布測定を行う輪郭抽出・解析ツールの開発article (author version)Kubo, Naoki492.1Innervision0913891918834医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5872019-04-18T06:56:30Zhdl_2115_20039hdl_2115_116Aihara, KazuyukiTsuda, IchiroFujii, Hiroshi2005-08-18T09:20:26Z2004-06http://hdl.handle.net/2115/587http://www.worldscinet.com/jin/jin.shtmlengImperial College PressCopyright (c) 2004 Imperial College Press.
The original publication is available at www.worldscinet.comPrologue - the work of the late professor Gen Matsumotoarticle (author version)津田, 一郎481.37Journal of Integrative Neuroscience021963523211111310.1142/S0219635204000464理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5882022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Fujii, HiroshiAihara, KazuyukiTsuda, Ichito2005-08-18T09:24:44Z2004-06http://hdl.handle.net/2115/588The non-classical, but frequently reported behavior of GABA[A] receptor-mediated excitation in mature CNS has long been regarded as a puzzle. We theorize that the function of cortical GABAergic interneurons, which might constitute a subsystem of brain's GABA interneurons, is their ability of switching from inhibitory action to excitatory action depending on the level of spatio-temporal activity in progress. From the perspective of a dynamical systems approach, such "excitatory" GABAergic responses may serve to temporarily invoke attractor-like memories when extensively activated by, for example, top-down signals as category information or attention, while an ongoing background state of GABA changes its action to inhibition, returning the dynamical nature of the memory structure back to attractor ruins.http://www.worldscinet.com/jin/jin.shtmlengImperial College PressCopyright (c) 2004 Imperial College Press. The original publication is available at www.worldscinet.comAttractor ruinchaotic itinerancyMilnor attractorGABAergic interneuronactivity-dependent excitatory GABA actionFunctional relevance of 'excitatory' GABA actions in cortical interneurons : a dynamical systems approacharticle (author version)津田, 一郎481.37Journal of Integrative Neuroscience021963523218320510.1142/S0219635204000506理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5892022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Tsuda, IchiroFujii, HiroshiTadokoro, SatoruYasuoka, TakuiYamaguti, Yutaka2005-08-18T09:44:34Z2004-06http://hdl.handle.net/2115/589We investigate the dynamic character of a network of electrotonically coupled cells consisting of class I point neurons, in terms of a finite dimensional dynamical system. We classify a subclass of class I point neurons, called class I* point neurons. Based on this classification, we use a reduced Hindmarsh-Rose (H-R) model, which consists of two dynamical variables, to construct a network model consisting of electrotonically coupled H-R neurons. Although biologically simple, the system is sufficient to extract the essence of the complex dynamics, which the system may yield under certain physiological conditions. The network model produces a transitory behavior as well as a periodic motion and spatio-temporal chaos. The transitory dynamics that the network model exhibits is shown numerically to be chaotic itinerancy. The transitions appear between various metachronal waves and all-synchronization states. The network model shows that this transitory dynamics can be viewed as a chaotic switch between synchronized and desynchronized states. Despite the use of spatially discrete point neurons as basic elements of the network, the overall dynamics exhibits scale-free activity including various scales of spatio-temporal patterns.http://www.worldscinet.com/jin/jin.shtmlengImperial College PressCopyright (c) 2004 Imperial College Press. The original publication is available at www.worldscinet.comGap junction-coupled systemclass I* neuronsdynamic cell assemblychaotic itinerancyMilnor attractormetachronal wavessynchronizationChaotic itinerancy as a mechanism of irregular changes between synchronization and desynchronization in a neural networkarticle (author version)津田, 一郎481.37Journal of Integrative Neuroscience021963523215918210.1142/S021963520400049X理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/5962022-11-17T02:08:08Zhdl_2115_20060hdl_2115_152兎内, 勇津流2005-08-25T07:46:02Z2005-0303860507http://hdl.handle.net/2115/596NII の総合目録においては,著者名典拠レコードの新規登録件数が低下傾向にあり,書誌レコード中の著者標目フィールドと著者名典拠とのリンク形成率もまた低下傾向にある。その一方,著者名典拠レコードの「歩留まり」には向上が見られるが,これには新規レコード作成に与かる館の減少が関係している可能性がある。NII の総合目録システムにおいては,参加館が多く登録書誌レコードが増えるほど目録負担が軽減され,それがさらに拡大を生むという循環の一方で,参加館の中に目録作成能力が十分でない館が増え,「歩留まり」の低下により,維持コストを引き上げる等の負の循環が生じるおそれがあり,それを踏まえた運営体制が要請される。The number of name authority file records being contributed to the NII union catalog is decreasing, as is the rate of name fields in bibliographic records being linked to name authority records. On one hand we can see an increase in the yield rate of name authority records, but it is possible that it is related to the decreasing number of libraries contributing records. We know that an individual institution's cataloging burden decreases as more libraries contribute records to the NII union catalog, and it helps to attract more libraries to the union catalog. But our observation suggests that, on the other hand, it leads deterioration of cataloging knowledge among participating libraries, and there will be a decrease in the yield rate and an increase in the costs of maintaining the union catalog system. The author calls for an improved operational system that will be able to break the negative cycle.jpn大学図書館研究編集委員会NACSIS-CAT書誌ユーティリティー国立情報学研究所共同分担目録著者名典拠ファイルBibliographic UtilitiesNational Institute for Informatics(NII)Shared Cataloging ResponsibilitiesName Authority FilesNII 総合目録データベースにおける著者名典拠ファイル形成過程What does the accumulation process of name authority records in the NII Union Catalog suggest to us?article (author version)Tonai, Yuzuru014.3大学図書館研究0386050773114スラブ・ユーラシア研究センター (Slavic-Eurasian Research Center)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6122022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Yoshida, MasanoriFujikawa, KomeiSato, SaekoHara, Shoji2005-08-29T06:41:04Z2003http://hdl.handle.net/2115/612A selective introduction of a fluorine atom into the α-position of β-dicarbonyl compounds was achieved using p-iodotoluene difluoride. The reaction proceeded under mild conditions and monofluorination of β-ketoesters, ketoamides, and diketones selectively took place.engArkat-USAhttp://www.arkat-usa.org/ark/arkivoc/arkivoc_about.aspfluorinationp-iodotoluene difluorideβ-dicarbonyl compoundsα-Fluorination of β-dicarbonyl compounds using p-iodotoluene difluoride under neutral conditionsarticle (author version)原, 正治437ARKIVOC2003vi3642工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6142022-11-17T02:08:08Zhdl_2115_20044hdl_2115_124Tsuda, ToshifumiNakamura, SeiichiHashimoto, Shunichi2005-08-31T05:21:55Z2004-10-01http://hdl.handle.net/2115/614The scope of TMSOTf-promoted glycosidation of 2-azido-2-deoxyglycopyranosyl diphenyl phosphates is investigated. The 3,4,6-tri-O-benzyl-protected glucosyl and galactosyl donors and the 4,6-O-benzylidene-protected galactosyl donor each react with a range of acceptor alcohols in the presence of a stoichiometric amount of TMSOTf in propionitrile at -78 °C to afford 1,2-trans-β-linked disaccharides in high yields with α:β ratios ranging from 9:91 to 1:>99, regardless of the anomeric composition of the donor used. The use of propionitrile as a solvent at -78 °C has proven to be among the best choice for the highest levels of β-selectivity reported to date for this type of glycosidation. A plausible reaction mechanism, which features a large equilibrium preference for α-glycosyl-nitrilium ions over β-nitrilium ions, is proposed based on byproducts formed through their intermediacy and accounts for the observed excellent β-selectivities.engElsevierhttp://www.sciencedirect.com/science/journal/004040202-Azido-2-deoxyglycopyranosyl diphenyl phosphateβ-Selective glycosidationα-Nitrilium ionA highly stereoselective construction of 1,2-trans-β-glycosidic linkages capitalizing on 2-azido-2-deoxy-D-glycosyl diphenyl phosphates as glycosyl donorsarticle (author version)津田, 敏史中村, 精一橋本, 俊一430Tetrahedron604710711107370040402010.1016/j.tet.2004.08.076薬学研究院 (Faculty of Pharmaceutical Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6152022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Oota, TakeyukiMatsuishi, Takashi2005-08-31T05:38:05Z2005-02http://hdl.handle.net/2115/615個体ベース生活史モデルを用いて,種苗放流が天然個体群に与える遺伝的影響を検討した。モデルでは,自然死亡,漁獲死亡,放流個体数等を考慮し,放流個体数,種苗生産時の親魚数,親魚の性比,漁獲死亡及び親魚の由来による遺伝的影響の差違を比較した。親魚数を雄 10 雌90,雄5 雌5 としたとき,雄 50 世代目における近交係数は,親魚数を雄50雌50としたときに比べそれぞれ5倍および27倍高くなった。親魚に天然個体を用いる場合は,過度の漁獲死亡係数が遺伝的多様性に影響を与えることが示された。We assessed the genetic impact of stocking on natural populations by using individual-based life-cycle models. We constructed models that used include density-dependent mortality at the early life stage, natural mortality, fishing mortality, and the number of released fish. We varied these variables by using random numbers. We focused on the genetic impact of the number of released fish, the number of parent fish producing seedlings that were released, the sex ratio of the parent fish, fishing mortality, and the methods to select the parents of the seedlings. When brood stock size in hatchery is 5 male and 5 female, is the coefficient of inbreeding is about 27 times comparing more when 50 male and 50 female at the 50th generation, and the coefficient of inbreeding increases about five times at the 50th generation, when the sex ratio of the parents changes from 50 males and 50 females to 10 males and 90 females. When parents are selected from wild populations at random, extreme fishing mortality may also reduce genetic diversity.engBlackwell Publishing© 2005 公益社団法人日本水産学会© 2005 The Japanese Society of Fisheries ScienceIndividual-based modelstockinggenetic impactstock enhancementIncrease of inbreeding by stocking on wild population assessed by using individual-based life history model個体ベース生活史モデルに基づく放流による天然個体群の近交係数増加の推移についてarticle (author version)太田, 武行松石, 隆663Fisheries Science09199268711737810.1111/j.1444-2906.2005.00932.x水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6162022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Ueda, YujiMatsuishi, Takashi2005-09-01T04:45:16Z2005-08http://hdl.handle.net/2115/616The present study assessed the stock state of Pacific cod Gadus macrocephalus caught off the coast of southern Hokkaido, Japan. Weight-based yield per recruitment (YPR) and spawning-biomass per recruitment (SPR) analyses were used for this assessment. The current fishing mortality (average from 1998 to 2000) was 0.65 and weight at first capture was 0.5 kg bodyweight. Under these fishing pressures, the YPR of Pacific cod in southern Hokkaido was 1.06 kg/recruitment and percentage of SPR (%SPR) was 6.9%. The %SPR was lower than the critical limit at 20%SPR. The main reason that values of both YPR and %SPR were not optimum, would be that the weight at first capture was too small. Raising the weight at first capture was thought to be a better strategy from the biological viewpoint, and reducing fishing mortality to 0.3 would be the next alternative strategy from the fisheries management viewpoint.engBlackwell Publishing© 2005 公益社団法人日本水産学会© 2005 The Japanese Society of Fisheries ScienceGadus macrocephalusPacific codSPR (spawning-biomass per recruitment)weight-basedYPR (yield per recruitment)stock assessmentWeight-based yield per recruitment and spawning-biomass per recruitment analyses of Pacific cod Gadus macrocephalus off the Pacific coast of southern Hokkaido, Japanarticle (author version)松石, 隆663Fisheries Science0919926871479980410.1111/j.1444-2906.2005.01030.x水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6212022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Yoshimura, Yasuo2005-09-01T09:25:53Z2002-06http://hdl.handle.net/2115/621Proceedings of International Commemorative Symposium - 70th Anniversary of the Japanese Society of Fisheries Science, October 1-5, 2001, Yokohama (日本水産学会創立70周年記念国際シンポジウム「新世紀における水産・海洋科学の展望」, 2001年10月1日-5日, パシフィコ横浜).Ships are potentially suitable for using wind energy. Almost every ship before the 19th century had been using only the wind power by classic sails, and supporting the worldwide trades and logistics in those days. In 1980’s after the last oil crises, many kind of modern sail-assisted ships were developed. Now, they will be hoped to become one of the best solution against the increasing CO2 discharge. In this paper, the author tries to review the past sail assisted-ships, and investigate into the prospect of the sail-assisted ships especially focusing to the fishing boat in future.engJapanese Society of Fisheries Science© 2002 公益社団法人日本水産学会© 2002 The Japanese Society of Fisheries Sciencewind-energysailfishing boatpower gainfuel savingA Prospect of Sail-Assisted Fishing Boatsproceedings (author version)芳村, 康男665Fisheries Science0919926868Supplement 21815181810.2331/fishsci.68.sup2_1815水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6222022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Fujimori, YasuzumiTokai, Tadashi2005-09-02T05:57:26Z2001-08http://hdl.handle.net/2115/622A maximum likelihood method of estimating gillnet selectivity when the data are obtained by gillnet fleets consisting of several nets of differing mesh size is presented in this paper. The SELECT model is expanded by application of the relative length (i.e. the ratio of fish length to mesh size) to obtain a master curve of gillnet selectivity. Four kinds of functional model, normal, lognormal, skew-normal and bi-normal are fitted to the data. In addition, two cases where the relative fishing intensity is either estimated or fixed by catch effort are compared. The bi-normal model has the lower model deviance regardless of whether the relative fishing intensity is estimated or not. The estimation of the relative fishing intensity by catch effort is also examined where the estimates of the parameter of the SELECT model are compared with the catch effort as determined by the number of nets of each mesh size used. For the bi-normal model these quantities compare well. Thus, it is concluded that this method gives reliable estimates even if the data for each mesh size is obtained with different catch efforts.engBlackwell PublishingCopyright (c) 2001 the Japanese Society of Fisheries Science(日本水産学会)bi-normalcatch effortgillnetsmaximum likelihood methodSELECT modelselectivity curveEstimation of Gillnet Selectivity Curve by Maximum最尤法による刺網の網目選択性曲線の推定法article (author version)藤森, 康澄665Fisheries Science0919926867464465410.1046/j.1444-2906.2001.00301.x水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6232022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Fujimori, YasuzumiChiba, KenjiOshima, TatsukiMiyashita, KazushiHonda, Satoshi2005-09-05T06:25:24Z2005-08http://hdl.handle.net/2115/623We examined variation in trawl dimension, bottom contact, and catch with differing warp lengths during walleye pollock surveys conducted by the Fisheries Research Agency. The ratio of warp length to fishing depth (scope ratio) was set at 2.5, 3.0 and 3.5 at depths of 110 m. At a 2.5 scope ratio, the net mouth shape and footgear contact fluctuated, as the trawl door did not contact the bottom. Footgear contact was complete when the scope ratio was 3.0 or more. Walleye pollock, sculpins, and flatfishes were the main catch in all tows, and the catch increased with scope ratio. There was no difference in the length frequency of n= 300 walleye pollock captured at 2.5 and 3.0 scope ratio. However, the length frequency at 3.5 was significantly different from that of other scope ratios. These results suggest the following: at a scope ratio of 3.0 or more, the trawl door will not leave the bottom at any depths. To compliment echo surveys for walleye pollock, a 3.0 scope ratio would be optimal, since the catch data for a 3.5 scope ratio was dissimilar from that of scope ratios.engBlackwell Publishing© 2005 公益社団法人日本水産学会© 2005 The Japanese Society of Fisheries Sciencefootgear contacttrawl dimensiontrawl surveywalleye pollockwarp lengthThe influence of warp length on trawl dimension and catch of walleye pollock Theragra chalcogramma in a bottom trawl surveyスケトウダラ着底トロール調査におけるワープ長の違いが網形状と漁獲に与える影響article (author version)藤森, 康澄664Fisheries Science0919926871473874710.1111/j.1444-2906.2005.01023.x水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6242022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Sawaguchi, MasanoriAyuba, ShinichiHara, Shoji2005-09-072002-09http://www.thieme-chemistry.com/thieme-chemistry/journals/info/synthesis/index.shtmlhttp://hdl.handle.net/2115/624Iodoarene difluorides were synthesized in three steps from the corresponding iodoarenes without the use of dangerous reagents such as fluorine gas or harmful mercury salts.engThiemehypervalent iodineiodosylarenesfluorine compoundsiodoarene difluorideshydrofluoric acidA Practical Synthetic Method for Iodoarene Difluorides without Fluorine Gas and Mercury Saltsarticle (author version)原, 正治437Synthesis0039788120021318021803工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6252022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Owari, Toshiaki2005-09-07T03:52:49Z20051814-2427http://hdl.handle.net/2115/625The growing forest products business in China has attracted foreign companies to the Chinese market. This study examines the unique characteristics of intercultural communication in the forest products business in China, using an exploratory case study approach. In-depth interviews were conducted with executives of a multinational forest industry company. The qualitative data analysis identified ten topics concerning business communication in China: bureaucracy, negotiation, business protocols, personal connections, distribution channel, employee recruitment, employee retention, language, publicity, and donations. The results illustrate the characteristics of business communication and how Western expatriates deal with communication issues in relation to the Chinese. Finally, this study generates keys to success in intercultural business communication in China.http://www.businessperspectives.org/en/journalim/index.htmengBusiness Perspectivesintercultural business communicationforest products industryChinacase studyIntercultural communication in the forest products business in China : a case studyarticle (author version)尾張, 敏章651Innovative Marketing1814-2427118995Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6262018-03-16T06:51:48Zhdl_2115_20033hdl_2115_134逸見, 勝亮2005-09-08T03:19:37Z200203868982http://hdl.handle.net/2115/626jpn教育史学会自衛隊生徒の発足 -1955年の少年兵-Establishment of Japan Self-Defense Forces' Youth Cadets : youth soldiers in 1955article (author version)Hemmi, Masaaki392.1日本の教育史学0386898245162180教育学院・教育学研究院 (Graduate School of Education / Faculty of Education)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6272022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Inagaki, TomotakeFukuhara, TsuyoshiHara, Shoji2005-09-08T07:05:22Z2003-06http://www.thieme-chemistry.com/thieme-chemistry/journals/info/index.shtmlhttp://www.thieme-connect.com/ejournals/abstract/synthesis/doi/10.1055/s-2003-39395http://hdl.handle.net/2115/627Fluorination reaction of epoxides and alkyl mesylates can beeffectively achieved by reaction with Et3N˙3HFunder microwave irradiation. The reaction time could be greatlyreduced compared to the reaction under thermal conditions. The reactionswere completed in a few minutes and the use of large excess of reagents couldbe avoided.engThiememicrowave irradiationepoxidesfluorinationring openingEt3N·3HFEffective Fluorination Reaction with Et3N•3HF Under Microwave Irradiationarticle (author version)原, 正治437Synthesis003978812003811571159工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6282022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Akiyama, YurikoFukuhara, TsuyoshiHara, Shoji2005-09-08T07:05:58Z2003-08http://hdl.handle.net/2115/628We found that the ring-opening fluorination of terminal epoxidesusing TBABF-KHF2 proceeds with high selectivity throughthe SN2 mechanism. As TBABF-KHF2 iseasily obtainable, is stable, and can be used in glassware, it canbe a useful reagent for 1-fluoro-2-alkanol synthesis from the terminalepoxides.engThiemehttp://www.thieme-chemistry.com/thieme-chemistry/journals/info/index.shtmlepoxidesfluorohydrineregioselectivityring-openingtetrabutylammonium bifluoride (TBABF)-KHF2Regioselective Synthesis ofFluorohydrines via SN2-Type Ring-Opening of Epoxideswith TBABF-KHF2article (author version)原, 正治437Synlett093652142003101530153210.1055/s-2003-40865工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6292022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Yoshimura, YasuoKoyanagi, Yasunari2005-09-09T04:45:13Z2004-07http://hdl.handle.net/2115/629It is important for a fisheries research vessel to reduce the underwater-radiated noise. In 1995, the International Council for the Exploration of the Sea (ICES) firstly recommended the maximum noise level for research vessels to ensure the acoustic research works and to prevent the fish reaction against the noise 1). Since then, it has been the world standard for the design of fisheries research vessels. For a small size vessel, however, it is very difficult to achieve the recommendations because of not enough space or capacity to make sound insulations. Moreover, the Froude number (Fn) of such small vessels tends to be higher than that of the larger vessels. Since the higher Froude number of the operating condition causes the large wave-making resistance, both propeller thrust and occurrence of cavitation increase, which tends to result in the higher level of underwater-radiated noise. Meanwhile, the fisheries research-cost can be reduced by using a small vessel, because not only the construction and operation cost, but also maintenance cost become lower than those of a large vessel. It would be desirable and efficient if a small vessel could satisfy the ICES's recommendation in place of a large research vessel. In this paper, the authors propose a design method for a small research vessel to reduce the underwater-radiated noise level. Utilizing this method, a small fisheries research vessel whose capacity is 290 GT and length is 33.5 m has been designed. From the sea trials after the construction, it has been proved successfully that the underwaterradiated noise level is the world lowest class at 10 knots (Fn=0.28) of researching speed and still satisfies the ICES's recommendation even in 11.6 knots (Fn=0.33) of the high-speed region.engMarine Acoustics Society of JapanUnderwater-radiated noisefisheries research shippropeller cavitationICES standardDesign of a Small Fisheries Research Vessel with Low Level of Underwater-Radiated Noisearticle (author version)芳村, 康男665Journal of the Marine Acoustics Society of Japan091658353131119水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6302022-11-17T02:08:08Zhdl_2115_20051hdl_2115_144Yoshikawa, HisayukiIshii, MasaoMatsueda, HidekazuKawano, TakeshiTakasugi, Yoshio2005-09-13T01:30:10Z2003-0416000889http://hdl.handle.net/2115/630On the basis of measurements of the partial pressure of carbon dioxide in surface seawater (pCO2w) between Japan and the Hawaiian Islands in winter and summer, we examined the relationship between the pCO2w and the sea surface temperature (SST) in the North Pacific Subtropical Gyre (NPSG). In winter, the pCO2w correlated well with the SST (0.14-0.24 %°C-1), suggesting a monotonous change in the carbonate system. However, in summer, five different pCO2w-SST relationships were found in the NPSG including the Kuroshio Extension due to changes in the relative contribution of ocean dynamics (upwelling, vertical mixing, and advection), the biological activity under the absence (very low level) of macro-nutrients, and thermodynamics. The increase in the pCO2w against the unit increase in the SST from January to July was low (<2.5%°C-1) west (leeward side) of the Hawaiian Islands (19-22˚N, 158-168˚W) and in the Kuroshio Extension (33-35ºN, 140-165ºE), and high (~3%°C-1) south of the Kuroshio Extension (25-30°N, 180-165°W) and the Hawaiian Islands (15-19°N, 157-162˚W). This suggested that the drawdown of dissolved inorganic carbon was affected by the enhanced biological activity due to upwelling events associated with eddies and/or the transport of dissolved nutrients from gyre edges to the interior.engBlackwellCopyright (c) 2003 Blackwell Munksgaad. Published on behalf of the Swedish Geophysical SocietyOceanic CO2North Pacific Subtropical GyrepCO2Seasonal VariationSea Surface TemperatureDistribution of the partial pressure of CO2 in surface water (pCO2w) between Japan and the Hawaiian Islands: pCO2wSST relationship in the winter and summerarticle (author version)吉川, 久幸450Tellus B0280650955245646510.1034/j.1600-0889.2003.01482.x環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8622022-11-17T02:08:08Zhdl_2115_20051hdl_2115_144Yoshikawa, HisayukiIshii, Masao2006-01-05T05:49:11Z2005-0216000889http://hdl.handle.net/2115/862Measurements of the partial pressure of CO2 in surface seawater (pCO2sw) were made in the Southern Ocean south of Australia during four cruises in January to February 1969, December 1983 to January 1984, December 1994 to January 1995, and January 2002. The spatial distribution of pCO2sw for the four cruises showed the same pattern north of the Subantarctic Front (SAF), while year-to-year changes were noted south of the SAF. We evaluated the long-term trend of the pCO2sw representative of the zone between oceanographic fronts by taking into account changes in the seasonal variation in pCO2sw and the long-term increase of the sea surface temperature (SST) of the Southern Hemisphere. The observed growth rate of pCO2sw was 0.7±0.1µatm/yr at its minimum, which was observed at the SST of 15°C north of the Subtropical Front (STF), 1.0±0.5µatm/yr in the Subantarctic Zone (SAZ) between STF and SAF, 1.5±0.4µatm/yr in the Polar Frontal Zone (PFZ) between SAF and the Polar Front (PF), and 1.8±0.2µatm/yr in the Polar Zone (PZ) between PF and 62°S, determined as the northern edge of the Seasonal Sea Ice Zone (SSIZ) on the basis of surface salinity and satellite images. These increases were caused by the uptake of anthropogenic CO2 as well as variations in the thermodynamic temperature effect, ocean transport, and biological activity. In the SSIZ between 62 and 66.5°S, we could not clearly evaluate the long-term trend of pCO2sw due to the remarkable CO2 drawdown by the biological activity in January 2002. The relatively low growth rates of pCO2sw close to the STF and in the SAZ are probably associated with the formation of Subtropical Mode Water and Subantarctic Mode Water in their respective zones. Between the north of the STF and PZ, the growth rate of total dissolved inorganic carbon (DIC) was calculated to be about 0.5-0.8µmol/kg/yr via the buffer factor.engBlackwellCopyright (c) 2005 Blackwell Munksgaad. Published on behalf of the Swedish Geophysical SocietyCO2Southern OceanpCO2Long term variationSurface seawaterVariations and trends of CO2 in the surface seawater in the Southern Ocean south of Australia between 1969 and 2002article (author version)吉川, 久幸450Tellus B571586910.1111/j.1600-0889.2005.00130.x環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6322018-06-03T23:35:27Zhdl_2115_20033hdl_2115_134逸見, 勝亮2005-09-13T07:20:18Z199903868982http://hdl.handle.net/2115/632jpn教育史学会皇后のビスケット -集団疎開学童ニ対シ御激励ノ思召-article (author version)Hemmi, Masaaki372.1日本の教育史学03868982第42集8096教育学院・教育学研究院 (Graduate School of Education / Faculty of Education)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6372022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Ezawa, TatsuhiroSmith, Sally E.Smith, F. Andrew2005-09-15T07:12:32Z2002-070032-079Xhttp://hdl.handle.net/2115/637The arbuscular mycorrhizal symbiosis is mutualistic, based on reciprocal transfer of P from the fungus to the plant and carbon from the plant to the fungus. Thus P is a most important 'currency' in the symbiosis. After absorbing P from the soil solution, the fungi first incorporate it into the cytosolic pool, and the excess P is transferred to the vacuoles. The vacuolar P pool probably plays a central role in P supply to the plant. The main forms of inorganic P in fungal vacuoles are orthophosphate and polyphosphate, but organic P molecules may also be present. Long distance translocation of P from the site of uptake in the external mycelium to the site of transfer to the plant is probably achieved via transfer of vacuolar components. This transport would be mediated either by protoplasmic streaming or the motile tubular vacuole-like system. The site of release of P into the interfacial apoplast and thence to the plant is most probably the fungal arbuscules. The biochemical and biophysical processes involved in P metabolism and transfer between cellular compartments in the symbiosis are currently not well understood. Some recent investigations of substrate specificities of phosphatase-type enzymes in AM fungi and other eukaryotic microorganisms, however, have shed new light on earlier results and permit the construction of a hypothetical scheme of P-flow, including possible regulatory factors. Steps in this scheme are experimentally testable and should stimulate future researchengSpringer Science+Business Media (formerly: Kluwer Academic Publishers)The original publication is available at www.springerlink.comarbuscular mycorrhizal fungiP metabolismP transportpolyphosphateV-ATPasevacuolesP metabolism and transport in AM fungiarticle (author version)江沢, 辰広474.65Plant and Soil0032079X2441-222123010.1023/A:1020258325010Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6422022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Yoshimura, YasuoMaekawa, KazuyoshiNakajima, ShuichiOsaka, Kazuhiro2005-09-16T03:10:32Z2000http://hdl.handle.net/2115/642第6回舶用機関国際シンポジウム ISME (International Symposium on Marine Engineering) Tokyo 2000, 場所:日本都市センター会館, 会期:10月23日-27日The use of an electronically controlled slipping clutch is gradually increasing for a marine propulsion system.
This system can provide a continuous change of propeller revolution even in a lower revolution zone of prime
mover. However, it hardy make the decelerating condition, because the slipping clutch itself can not make the
negative torque.
In this paper, the authors have designed a push-pull control system using two slipping clutches in order to
improve the above disadvantage of the conventional slipping clutch. For the evaluation of this system, the whole
propulsion system including prime mover, clutches, propeller and ship are numerically simulated using the
precise mathematical model described here. From several accelerating and decelerating simulations, the following
results are pointed out.
1) FPP’s revolution can be easily changed in the slipping zone by using this system, although the main engine
is governed constant revolution.
2) Astern and ahead maneuvering is also performed by this system.
3) The mathematical model for this simulation including engine, clutch, propeller and ship is useful for the
design and evaluation of the whole propulsion system.
As the result, this push-pull controlled slipping clutch system will be very useful for a marine propulsion system.engMarine Engineering Society of Japanslipping clutchFPPpush-pull controlharbor maneuveringastern maneuveringApplication of Push-Pull Control Slipping Clutch to the Marine Propulsion Systemarticle (author version)芳村, 康男665Proceedings of ISME Tokyo 20001159162水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6432022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Shimizu, KoichiKoji, TochioKato, Yuji2005-09-16T04:04:25Z2005-04http://hdl.handle.net/2115/643The point-spread function (PSF) for transcutaneous fluorescent imaging was obtained as an analytical solution in a closed form. It is applicable to cases in which the optical property of the image-blurring turbid medium is considered to be fairly homogeneous. We proposed a technique to improve a transcutaneous image by using depth-dependent PSF. Contrast of the fluorescent image was improved for depths of 1-15 mm in a scattering medium (µ_s' = 1/mm). The visible depth was more than doubled with this technique. An experiment with a rat demonstrated considerable improvement of a transcutaneous image of the cerebral vein at a specified depth. The spread image of the heart was reduced to the correct size by use of the PSF with the actual depth of the heart.engOptical Society of America(c) 2005 Optical Society of AmericaImage processing : DeconvolutionImage processing : Image reconstruction-restorationMedical optics and biotechnology : Image reconstruction techniquesMedical optics and biotechnology : Light propagation in tissuesMedical optics and biotechnology : Medical and biological imagingMedical optics and biotechnology : Turbid mediascatteringfluorescenceimagingmolecular imagingtransillumination imagingPSFImprovement of transcutaneous fluorescent images with a depth-dependent point-spread functionarticle清水, 孝一549.95Applied Optics0003693544112154216110.1364/AO.44.002154情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7792022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145井上, 純一2005-11-25T04:51:59Z2005-09-010913-5693http://hdl.handle.net/2115/779電子情報通信学会誌上での小特集 :
確率を手なずける秘伝の計算技法 -- 古くて新しい確率・統計モデルのパラダイム -- における解説記事です。不完全データから確率モデルのパラメータを推定するための常套手段として広く知られているEMアルゴリズムを統計物理の視点から解説する.データ間に強い相関がある大自由度確率モデルへの適用に際し,EMアルゴリズムの処理過程はミクロ/マクロな変数が相互に絡み合ったダイナミックスとなるが,その様相がアルゴリズムの収束性/精度に及ぼす影響をレプリカ法を用いずに,画像修復を例にとった簡単な計算機実験を通して詳しく見ていきたい.jpn電子情報通信学会http://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/IEICEmini_2005_inoue.html確率推論EMアルゴリズムマルコフ連鎖モンテカルロ法EMアルゴリズムの動的性質 : 確率推論におけるミクロとマクロの絡み合いarticle (author version)Inoue, Jun-ichi417電子情報通信学会誌09135693889719723情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6482019-05-14T10:20:29Zhdl_2115_20060hdl_2115_152兎内, 勇津流2005-09-16T10:13:38Z2005-09http://hdl.handle.net/2115/64821世紀COEプログラム「スラブ・ユーラシア学の構築」内の研究会誌掲載原稿jpn北海道大学スラブ研究センターhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/中国刊行ロシア語出版物所蔵目録稿:補遺(3) 早稲田大学篇article (author version)Tonai, Yuzuru029.7101220スラブ・ユーラシア研究センター (Slavic-Eurasian Research Center)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6492018-03-16T06:47:39Zhdl_2115_20033hdl_2115_134逸見, 勝亮2005-09-21T06:28:53Z2003-09-21http://hdl.handle.net/2115/649教育史学会47回大会(同志社大学,2003年9月21日)における学会発表資料jpn逸見勝亮http://creativecommons.org/licenses/by-nc-sa/2.1/jp/戦歿者寡婦奈良特設幼稚園保姆養成所の歴史article (author version)Hemmi, Masaaki373.7教育史学会47回大会教育学院・教育学研究院 (Graduate School of Education / Faculty of Education)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6502023-08-08T01:30:51Zhdl_2115_20045hdl_2115_139Sato, SaekoYoshida, MasanoriHara, Shoji2005-09-22T04:47:26Z2005-10http://hdl.handle.net/2115/650Fluorination of ketones was achieved by the reaction of silyl enol ethers with iodotoluene difluoride in the presence of BF3·OEt2 and a Et3N·HF complex.engThiemehttp://www.thieme-chemistry.com/thieme-chemistry/journals/info/synthesis/index.shtmlfluorinationiodotoluene difluoridesilyl enol etherketonehypervalent iodineFluorination of Ketones Using Iodotoluene Difluoridearticle (author version)原, 正治437Synthesis003978812005152602260510.1055/s-2005-872105工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6512022-11-17T02:08:08Zhdl_2115_20040hdl_2115_121久保, 直樹2005-09-26T23:36:16Z1999-0809138919http://hdl.handle.net/2115/651低線量撮影したX線CT画像の画質を改善する画像処理フィルタ設計法を開発した。また同じ目的を達成するために別の手法として,スムージングを施してもエッジを保存する新しい関数系を開発した。空間フィルタの特性はウィナーフィルタに類似した形とした。低線量撮影したCT画像を,本手法のフィルタを施すことでコントラストを保ちつつ,雑音を抑制できることができた。新しい関数系は,符号がオリジナルの三角関数と等しく,振幅が三角関数の平方根となっている。今回開発した関数系は,フーリエ変換よりエッジを保存してスムージングできることが確認できた。これにより低線量撮影した画像の雑音を抑えるためスムージングをしても質の高い画像を提供することができる。jpnインナービジョンX線CTフィルタ関数系低線量撮影低線量撮影したX線CTの画質向上を達成するための画像処理フィルタ設計法article (author version)Kubo, Naoki492.1Innervision14862医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6632009-09-15T04:06:11Zhdl_2115_20038hdl_2115_123濱田, 康行2005-09-29T09:51:09Z2005-03http://www.tkfd.or.jp/publication/reserch/chikara18_7.shtmlhttp://www.econ.hokudai.ac.jp/%7Ehamada/articles/fukkatukancyo.htmlhttp://hdl.handle.net/2115/663http://www.global-g.jp/ronkou/hamada20050302.html著者,東京財団,および,共同研究「グローバリゼーション時代におけるガバナンスの変容に関する比較研究」のウェブサイトでも公開されている。なお,別タイトルは著者ウェブサイトにおけるタイトル。jpn東京財団金融社会主義に向かって進む日本膨張する官と萎縮する民 -金融社会主義の病理-article (author version)Hamada, Yasuyuki338.3日本人のちから : 東京財団政策研究誌181213経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6672022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Owari, Toshiaki2005-10-03T01:32:12Z20040355-032Xhttp://hdl.handle.net/2115/667Pajuoja, H. and Karppinen, H. (eds.), Proceedings of the Biennial Meeting of the Scandinavian Society of Forest Economics, Vantaa, Finland, 12-15 May, 2004This paper presents the latest information on the Japanese marketing environment of structural lumber that is used for house construction. The demand for lumber has decreased, while the demand for structural laminated lumber has been rapidly increasing. The changes in end-users’ requirements have created demand for structural laminated lumber. The imports in lumber and structural laminated lumber from Europe have been increasing in Japan. Europe succeeded in meeting the changing end-users’ needs. The distribution system for lumber has been changing a great deal. The emergence of the pre-cut business has sharply reduced the items distributed through conventional routes. The pre-cut mills have an influential role in the structural item selection. The pre-cut mills in the metropolitan area are becoming larger. They give higher priority to stable supply and tend to do business with the suppliers who are able to supply large amount of materials steadily.http://www.metla.fi/tapahtumat/2004/ssfe/index.htmhttp://www.metla.fi/tapahtumat/2004/ssfe/proceedings-SSFE-2004-Jarvenpaa.pdfhttp://www.metla.fi/tapahtumat/2004/ssfe/presentations-byauthor.htmengScandinavian Society of Forest Economicshttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/marketing environmentJapanInformation Environment Modelstructural lumberpre-cut industryMarketing Environment of Structural Lumber in Japanarticle (author version)尾張, 敏章651Scandinavian Forest Economics40319328Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6652009-09-15T03:24:24Zhdl_2115_20038hdl_2115_123濱田, 康行2005-09-30T10:04:40Z2005-05http://hdl.handle.net/2115/665著者および共同研究「グローバリゼーション時代におけるガバナンスの変容に関する比較研究」のウェブサイトでも公開されているhttp://www.econ.hokudai.ac.jp/%7Ehamada/articles.htmlhttp://www.global-g.jp/ronkou/hamada20050501.htmljpn社団法人 全国信用組合中央協会http://creativecommons.org/licenses/by-nc-sa/2.1/jp/平成ホリエモン考article (author version)Hamada, Yasuyuki335.46信用組合5251013経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6662009-09-15T04:02:33Zhdl_2115_20038hdl_2115_123濱田, 康行2005-09-30T10:06:17Z2005-06http://hdl.handle.net/2115/666『信用組合』第52巻第6号の巻頭言。著者のウェブサイトでも公開されている。http://www.econ.hokudai.ac.jp/%7Ehamada/articles.htmljpn社団法人 全国信用組合中央協会http://creativecommons.org/licenses/by-nc-sa/2.1/jp/私達が“取り戻すべきもの”column (author version)Hamada, Yasuyuki335.6信用組合52623経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6682009-09-15T01:17:24Zhdl_2115_20038hdl_2115_123濱田, 康行2005-10-03T04:01:51Z2005-07http://hdl.handle.net/2115/668「特集 -平成16年度日本学術振興会委託調査- 規制緩和と中小企業の新しい発展分野」の第2回記事に該当する。jpn財団法人 商工総合研究所規制緩和とビジネスチャンス -中小企業振興への課題-article (author version)Hamada, Yasuyuki335.35商工金融09141308557519経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6692022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Ezawa, TatsuhiroHayatsu, MasahitoSaito, Masanori2005-10-04T05:47:54Z2005-100894-0282http://hdl.handle.net/2115/669The mycorrhiza-responsive phosphatase of Tagetes patula in symbiosis with Glomus etunicatum was detected by electrophoresis, was purified by column chromatography, and was characterized as acid phosphatase that was secreted into rhizosphere. The N-terminal amino acid sequence was determined by a gas-phase sequencer, and a cDNA fragment of the phosphatase gene (TpPAP1) was amplified by degenerate primers designed based on the N-terminal amino acid sequence. The full-length cDNA was obtained by the rapid amplification of cDNA ends technique. The TpPAP1 was of host origin, and the cDNA was 1,843 bp long with a predicted open reading frame of polypeptide of 466 amino acids. Phylogenetic analysis revealed that the gene fell into the cluster of plant high-molecular-weight purple acid phosphatase. Expression analysis of the TpPAP1 in T. patula in symbiosis with Archaeospora leptoticha showed that the levels of transcripts increased eightfold by mycorrhizal colonization. Western blot analysis revealed that the 57-kDa protein corresponding to the mycorrhiza- responsive phosphatase increased by mycorrhizal colonization. The present study proposes a new strategy for acquisition of P in arbuscular mycorrhizal associations in which the fungal partner activates a part of the low-P adaptation system of the plant partner, phosphatase secretion, and improves the overall efficiency of P uptake.engThe American Phytopathological SocietyA New Hypothesis on the Strategy for Acquisition of Phosphorus in Arbuscular Mycorrhiza : Up-Regulation of Secreted Acid Phosphatase Gene in the Host Plantarticle (author version)江沢, 辰広474.65Molecular Plant-Microbe Interactions0894028218101046105310.1094/MPMI-18-104616255243Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6702012-02-06T10:50:00Zhdl_2115_20040hdl_2115_121久保, 直樹2005-10-05T23:10:19Z2005-07-31http://hdl.handle.net/2115/670jpn日本放射線技術学会 北海道部会SPECTファントム心電図同期SPECT左心室機能心筋動態ファントム開発とその後の研究動向article (author version)Kubo, Naoki492.1日本放射線技術学会北海道部会会報545152医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6712022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Ohtomo, RyoSekiguchi, YokoMimura, TetsuroSaito, MasanoriEzawa, Tatsuhiro2005-10-06T04:52:10Z2004-05-150003-2697http://hdl.handle.net/2115/671Polyphosphate is ubiquitous and has a variety of biochemical functions. Among polyphosphate quantification methods, an enzymatic assay using Escherichia coli polyphosphate kinase (PPK), in which polyphosphate is converted to adenosine 5′-triphosphate and quantified by luciferase assay, is the most specific and most sensitive. However, chain-length specificity of the assay has not been analyzed in detail so far. Ion chromatography equipped with an on-line hydroxide eluent generator enabled us to analyze polyphosphate up to 50 inorganic phosphate (Pi) residues, and we employed this method to investigate the chain-length specificity of PPK in this study. Several fractions of short-chain polyphosphate were prepared by electrophoresis, and the chain-length distribution was analyzed before and after 1–6 h PPK reaction by ion chromatography. Polyphosphates longer than 23 Pi residues were processed by PPK completely after 1 h incubation, but complete processing of those between 11 and 22 Pi residues required 6 h incubation. Limited processing of polyphosphates of 10 Pi residues or shorter were observed even after 6 h incubation. Metachromasy of Toluidine blue O, an alternative method for polyphosphate quantification, showed broader chain-length specificity although it was not as sensitive as the enzymatic assay. Combination of these two methods would be practically applicable to analysis of polyphosphate dynamics in living organisms.engElsevierhttp://www.sciencedirect.com/science/journal/00032697Ion chromatographyPolyphosphatePolyphosphate kinaseToluidine blue OQuantification of polyphosphate: different sensitivities to short-chain polyphosphate using enzymatic and colorimetric methods as revealed by ion chromatographyarticle (author version)江沢, 辰広474.65Analytical Biochemistry00032697328213914610.1016/j.ab.2004.03.004Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6722023-07-31T01:31:36Zhdl_2115_20060hdl_2115_152兎内, 勇津流2005-10-06T07:15:34Z2004http://hdl.handle.net/2115/672『「ロシアの中のアジア/アジアの中のロシア」研究会通信』no. 4 (July 2004), no. 6 (Sept. 2004), no. 7 (Nov. 2004)に連載したものを、1つにまとめた上、誤植等を訂正したもの。jpn北海道大学スラブ研究センターhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/レンセン・コレクション収載マイクロ資料目録otherTonai, Yuzuru029.9「ロシアの中のアジア/アジアの中のロシア」研究会通信スラブ・ユーラシア研究センター (Slavic-Eurasian Research Center)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6732022-11-17T02:08:08Zhdl_2115_20044hdl_2115_124Tsuda, ToshifumiArihara, RyoichiSato, ShinyaKoshiba, MiyukiNakamura, SeiichiHashimoto, Shunichi2005-10-07T06:12:52Z2005-09-19http://hdl.handle.net/2115/673A direct and practical method for the construction of β-mannosidic linkages is described. While β-selectivities in the TMSOTf-promoted glycosidation of 2,3,4,6-tetra-O-benzyl-D-mannosyl diethyl phosphite are found to be highly dependent on the reactivity of acceptor alcohols, 2,3-di-O-benzyl-4,6-O-benzylidene-D-mannosyl diethyl phosphite reacts with a wide range of acceptor alcohols in the presence of TMSOTf in CH2Cl2 at –45 °C to give β-mannosides in high yields with good to high β-selectivities.engElsevierhttp://www.sciencedirect.com/science/journal/004040204,6-O-Benzylidene acetalMannosyl diethyl phosphiteβ-Selective glycosidationDirect and stereoselective synthesis of β-D-mannosides using 4,6-O-benzylidene-protected mannosyl diethyl phosphite as a donorarticle (author version)津田, 敏史在原, 僚一佐藤, 晋也小柴, みゆき中村, 精一橋本, 俊一430Tetrahedron0040-40206145107191073310.1016/j.tet.2005.08.090薬学研究院 (Faculty of Pharmaceutical Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8312021-10-07T06:33:31Zhdl_2115_20038hdl_2115_123濱田, 康行2005-12-02T06:42:19Z2005-03http://hdl.handle.net/2115/831特集テーマ「地域再生~まちが輝きを取り戻すとき」の総論記事のうちの一つ。北海道自治政策研修センターおよび著者のウェブサイトでも公開されている。http://www.pref.hokkaido.jp/soumu/sm-hjisc/sei-jouho/NO15chiikisaisei/mokuzi(no15).htmhttp://www.econ.hokudai.ac.jp/~hamada/articles/seisakukenkyu.htmljpn北海道自治政策研修センター (政策研究室)北海道経済と創造性article (author version)Hamada, Yasuyuki332.11ほっかいどう政策研究0917-72721518経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7762009-09-15T03:54:34Zhdl_2115_20038hdl_2115_123濱田, 康行2005-11-24T07:47:45Z2005-04-04http://hdl.handle.net/2115/776著者のウェブサイトでも公開されている。http://www.econ.hokudai.ac.jp/~hamada/articles.htmljpn時事通信社協同組織金融機関の現代的意義article (author version)Hamada, Yasuyuki338.73農林経済968725経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6782023-07-27T00:20:21Zhdl_2115_20038hdl_2115_123濱田, 康行2005-10-11T07:53:12Z2005-1009111042http://hdl.handle.net/2115/678「特集 現代的な協同金融の姿を求めて」の特集記事のうちの一つ。搭載しているファイルは,(財)生協総合研究所から提供していただいた確定稿のPDFファイル。jpn財団法人 生協総合研究所協同組織の存在意義・再考article (author version)Hamada, Yasuyuki335.6生活協同組合研究091110423571825経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6792009-09-15T04:07:41Zhdl_2115_20038hdl_2115_123濱田, 康行2005-10-17T09:25:16Z2005-08-18http://hdl.handle.net/2115/679『北海道労働委員会月報』No.504 2005年8月号に掲載されたコラム。著者のウェブサイトでも公開されている。http://www.econ.hokudai.ac.jp/%7Ehamada/articles.htmljpn北海道労働委員会事務局総務課非合理的経済人のすすめarticle (author version)Hamada, Yasuyuki331.1北海道労働委員会月報50423経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/6812019-04-25T03:24:02Zhdl_2115_680hdl_2115_116Ozawa, TohruGiga, YoshikazuJimbo, ShuichiNakamura, GenTonegawa, YoshihiroTsutaya, Kimitoshi2005-10-24T09:01:02Z2005-01-01http://hdl.handle.net/2115/681http://eprints3.math.sci.hokudai.ac.jp/1052/engDepartment of Mathematics, Hokkaido University00-xx GENERAL35-xx PARTIAL DIFFERENTIAL EQUATIONSProceedings of the 30th Sapporo Symposium on Partial Differential Equationsbulletin (article)410413Hokkaido University technical report series in mathematics1348-433896178AA11958795009610.14943/623理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6822019-04-25T00:16:21Zhdl_2115_680hdl_2115_116Watanabe, Michiyuki2005-10-24T09:01:04Z2005-01-01http://hdl.handle.net/2115/682http://eprints3.math.sci.hokudai.ac.jp/1053/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL第5回COE研究員連続講演会 : 『逆散乱法』入門bulletin (article)410Hokkaido University technical report series in mathematics1348-433897340AA11958796009710.14943/624理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6832019-04-25T00:21:57Zhdl_2115_680hdl_2115_116Takeda, MasayoshiMikami, Toshio2005-10-24T09:01:05Z2005-01-01http://hdl.handle.net/2115/683http://eprints3.math.sci.hokudai.ac.jp/1054/engDepartment of Mathematics, Hokkaido University00-xx GENERALProbability and PDEbulletin (article)410Hokkaido University technical report series in mathematics1348-433898147AA11958797009810.14943/625理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6842019-04-25T04:04:10Zhdl_2115_680hdl_2115_116Sakajo, Takashi2005-10-24T09:01:07Z2005-01-01http://hdl.handle.net/2115/684http://eprints3.math.sci.hokudai.ac.jp/1059/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL応用数理サマーセミナー「逆問題」bulletin (article)410Hokkaido University technical report series in mathematics1348-43381001190AA11958799010010.14943/626理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6852019-04-25T03:52:40Zhdl_2115_680hdl_2115_116van Manen, Martijn2005-10-24T09:01:08Z2005-01-01http://hdl.handle.net/2115/685http://eprints3.math.sci.hokudai.ac.jp/1063/engDepartment of Mathematics, Hokkaido University00-xx GENERALThe 6th COE Lecture Series From the cut-locus via the medial axis to the Voronoi diagram and backbulletin (article)410Hokkaido University technical report series in mathematics1348-433899139AA11958798009910.14943/627理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6862019-04-25T02:33:13Zhdl_2115_680hdl_2115_116Kubo, HideoOzawa, Tohru2005-10-24T09:01:09Z2003-11-17http://hdl.handle.net/2115/686http://eprints3.math.sci.hokudai.ac.jp/0016/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSSapporo Guest House Symposium on Mathematics 15 Evolution Equationsbulletin (article)413Hokkaido University technical report series in mathematics1348-433879130AA11958778007910.14943/628理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6872019-04-25T04:04:10Zhdl_2115_680hdl_2115_116Shimada, I.Tonegawa, Y.2005-10-24T09:01:10Z2004-01-01http://hdl.handle.net/2115/687http://eprints3.math.sci.hokudai.ac.jp/0273/特別講演 4/3(木) 16:00-17:00 北大理学部4号館508室 Gregory K, Sankaran(University of Bath), Abelian surfaces with odd bilevel structure 4/3(木) 16:30-17:30 北大理学部3号館508室 Charles Bu (Wellesley College), Inhomogeneous Boundary Value Problem for the nonlinear Schr\''odinger Equations 4/16(水) 16:00-17:00 北大理学部4号館508室 Alastair King (University of Bath), G-constellations and deformations of the generic orbit 6/23(月) 14:45-15:45 北大理学部3号館508室 岡田 正己(都立大), エネルギー保存偏微分方程式のウェイヴレット展開によるハミルトン力学系表示とその応用 7/25(金) 17:00-18:00 北大理学部4号館508室 本堂 毅(東北大学), 携帯電話による間接被爆をめぐって 12/8(月) 14:45-16:15 北大理学部8号館302室 山田雅博氏(岐阜大学), Carleson type measures on parabolic Bergman spaces 12/12(金) 16:30-18:00 北大理学部4号館508室 森吉昭博(北大・工学研究科), 空気中の浮遊有機物の排出源毎の寄与率の推定 12/15(月) 16:30-17:30 北大理学部3号館508室 Eric Bedford(Indiana University), Dynamics of Birational mappings of the plane 1/28(水) 15:00-16:00 北大理学部3号館508室 Filippo Bracci(ローマ第2大学), Dynamics of holomorphic self-maps of bounded domains 2/4(水) 16:30-17:30 北大理学部3号館512室 山崎洋平(大阪大学), 「広義重積分体系の整備にルベーグ積分は必要か?また十分か?」 2/19(木) 15:00-16:00 北大理学部3号館508室 Jorg Schurmann(ミュンスター大学), ""Milnor classes and vanishing cycles"" 3/11(木) 16:30-17:30 北大理学部3号館508室 KHANIN, Kostya(Newton 研究所/京都大), Burgers Turbulence and Random Lagrangian Dynamics 3/23(火) 15:00-16:00 北大理学部3号館508室 伊藤敏和(龍谷大学), On real transverse sections of holomorphic foliations 3/23(火) 16:30-17:30 北大理学部3号館508室 Xavier Gomez-Mont (CIMAT and RIMS), Formula for Computing Indices of Vector Fields on Singular Varieties 談話会 5/14(水) 16:00-17:00 北大理学部4号館508室 坂上 貴之(北大), 極渦のある球面上の渦層の運動 7/2(水) 15:00-16:00 北大理学部4号館508室 小林 亮(北大・電子研), 真性粘菌変形体の運動と形態形成のモデリングについて 7/2(水) 16:30-17:30 北大理学部4号館508室 森田 茂之(東京大), 種々のモジュライ空間のコホモロジーについて--Riemann 面、 metric グラフ、二次形式-- 11/26(水) 15:00-16:00 北大理学部4号館508室 吉田知行(北大・理), 群論の古典的問題のその後 11/26(水) 16:30-17:30 北大理学部4号館508室 名和範人(名古屋大), 非線形Schr\""odinger 方程式の爆発解jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL2003年度談話会・特別講演アブストラクト集 Colloquium Lectures 北海道大学理学部数学教室bulletin (article)410Hokkaido University technical report series in mathematics1348-433882150AA11958781008210.14943/629理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6882019-04-25T04:55:28Zhdl_2115_680hdl_2115_116Hayashi, M.Ishikawa, G.2005-10-24T09:01:11Z2003-01-01http://hdl.handle.net/2115/688http://eprints3.math.sci.hokudai.ac.jp/0274/談話会 12月18日(水) 16:30-17:30 北大理学部4号館508室 新井 仁之(東京大) 錯視とウェーブレット 12月18日(水) 15:00-16:00 北大理学部4号館508室 山下 博(北海道大) 無限次元表現とその冪零不変量---不変微分作用素をとおして--- 7月2日(火) 16:30-17:30 北大理学部4号館508室 佐藤 肇(名古屋大) 幾何構造が定める微分方程式の不変量 7月2日(火) 15:00-16:00 北大理学部4号館508室 神保 秀一(北大・理) ギンツブルグ・ランダウ方程式における安定解と領域依存性 特別講演 11月26日(火) 16:30-17:30 北大理学部4号館508室 Vladimir Sharafutdinov(Sobolev Institute of Mathematics) Boundary Rigidity and Spectral Rigidity of Riemannian manifolds 11月26日(火) 16:30-17:30 北大理学部3号館508室 Jean-Paul Brasselet(IML,Marseille) On the characteristic classes of singular varieties 11月22日(金) 16:30-17:30 北大理学部3号館508室 三沢 正史(熊本大) ある退化特異放物型方程式系の解の正則性と存在について 11月20日(水) 16:30-17:30 北大理学部3号館512室 Vo Anh(Queensland University of Technology) Dynamic models of asset prices with memory and heavy tails 10月30日(水) 16:30-17:30 北大理学部3号館512室 坂上 貴之(名古屋大) 一般化された粘性項をConstantin-Lax-Majda 方程式の爆発解 10月28日(月) 16:30-17:30 北大理学部3号館508室 Jean Ginibre(Univ.de Paris-Sud) Long range scattering for the wave-Schr{\”o}dinger system 10月25日(金) 16:30-17:30 北大理学部5号館304室 Matthias Hieber(Technical University of Darmstadt) $H^{\infty}$ -calculus for elliptic operators subject to general boundary conditions on $L^p$ spaces 10月21日(月) 16:30-17:30 北大理学部3号館508室 関根 順(大阪大学) Exponential hedging, power-utility maximization, and quadratic BSDEs 10月3日(木) 16:30-17:30 北大理学部4号館508室 久保 英夫(静岡大学) 波動方程式に対する重みつき時空評価についての一注意 9月24日(火) 16:30-17:30 北大理学部4号館508室 Klaus Deckelnick(マグデブルグ大) Convergence of a finite element scheme for the approximation of level set solutions to mean curvature flow 7月8日(月) 15:00-16:00 北大理学部3号館508室 藤田 安啓(富山大) sign condition をみたさない非線形楕円型方程式の解の存在 6月27日(木) 16:30-17:30 北大理学部4号館508室 Keith Conrad(UCSD) Prime values of polynomials 6月13日(木) 16:30-17:30 北大理学部4号館508室 Steven Zucker(Johns Hopkins University) Coping with incompatible compactifications of locally symmetric varieties "jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL2002年度談話会・特別講演アブストラクト集 Colloquium Lectures 北海道大学理学部数学教室bulletin (article)410Hokkaido University technical report series in mathematics1348-433876134AA11958775007610.14943/630理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6892019-04-25T04:15:18Zhdl_2115_680hdl_2115_116Suwa, T.Yamanouchi, T.2005-10-24T09:01:12Z2002-01-01http://hdl.handle.net/2115/689http://eprints3.math.sci.hokudai.ac.jp/0275/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL2001年度談話会・特別講演アブストラクト集 Colloquium Lectures 北海道大学理学部数学教室bulletin (article)410Hokkaido University technical report series in mathematics1348-433872138AA11958771007210.14943/631理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6902019-04-25T03:24:03Zhdl_2115_680hdl_2115_116Jimbo, Shuichi2005-10-24T09:01:14Z2003-01-01http://hdl.handle.net/2115/690http://eprints3.math.sci.hokudai.ac.jp/0277/The 28th Sapporo Symposium on Partial Dierential Equations Organizers: T. Ozawa, Y. Giga, S. Jimbo, K. Tsutaya, Y. Tonegawa, G. Nakamura2. Venues: Department of Mathematics, Faculty of Science, Hokkaido University July 23, 2003 (Wednesday) 9:30-10:30 Gregory SEREGIN (Steklov Institute/Keio Univ.) Interior regularity of L_3;\infty-solutions to the Navier-Stokes equations 11:00-12:00 Takaaki NISHIDA (Kyoto Univ.) Heat convection problems and computer assisted proof 14:30-15:00 Akihiro SHIMOMURA (Gakushuin Univ.) Modified wave operators for Maxwell-Schrodinger equations 15:15-15:45 Hideaki SUNAGAWA (Osaka Univ.) Remarks on the large time asymptotics for nonlinear Klein-Gordon systems 16:00-16:30 Hirokazu NINOMIYA (Ryukoku Univ.) Curved traveling front of Allen-Cahn equations July 24, 2003 (Thursday) 9:30-10:30 Masahiro YAMAMOTO (Univ. Tokyo) Uniqueness in inverse scattering problems with a single incident wave 11:00-12:00 Shinya NISHIBATA (Tokyo Inst. Tech.) Asymptotic behavior of spherically symmetric solutions to the compressible Navier Stokes equation with external forces 14:30-15:00 Dening LI (West Virginia Univ.) Conical shock waves in supersonic flow 15:15-15:45 Yasushi TANIUCHI (Shinshu Univ.) Remarks on global solvability of 2-D Boussinesq equations with nondecaying initial data July 25, 2003 (Friday) 9:30-10:30 Ryuichi SUZUKI (Kokushikan Univ.) Blow-up of solutions of quasilinear parabolic equations with localized reactions 11:00-12:00 SAKAGUCHI (Ehime Univ.) Initial behavior of solutions of diusion equations and symmetries of domains"engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSThe 28th Sapporo Symposium on Partial Differential Equationsbulletin (article)413Hokkaido University technical report series in mathematics1348-4338771AA11958776007710.14943/632理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6912019-04-25T04:55:29Zhdl_2115_680hdl_2115_116Matsushita, D.2005-10-24T09:01:17Z2003-01-01http://hdl.handle.net/2115/691http://eprints3.math.sci.hokudai.ac.jp/0278/Hodge Theory and Algebraic Geometry 2002/10/7-11 Department of Mathematics, Hokkaido University 石井志保子(東工大)Nash problem on arc families for singularities 内藤広嗣 (名大多元) 村上雅亮(京大理)Surfaces with c^2_1= 3 and \kai(O) = 2, which have non-trivial 3-torsion divisors 大野浩二(大阪大)On certain boundedness of fibred Calabi-Yau s threefolds 阿部健(京大理) 春井岳(大阪大)The gonarlity of curves on an elliptic ruled surface 山下剛(東大数理)開多様体のp進etale cohomology と crystalline cohomology 中島幸喜(東京電機大)Theorie de Hodge III pour cohomologies p-adiques 皆川龍博 (東工大)On classification of weakened Fano 3-folds 斉藤夏男(東大数理)Fano threefold in positive characteristic 石井亮(京大工)Variation of the representation moduli of the McKay quiver 前野俊昭(京大理)群のコホモロジーと量子変形 宮岡洋一(東大数理) 次数が低い有理曲線とファノ多様体 池田京司(大阪大)Subvarieties of generic hypersurfaces in a projective toric variety 竹田雄一郎(九大数理)Complexes of hermitian cubes and the Zagier conjecture 臼井三平(大阪大)SL(2)-orbit theorem and log Hodge structures (Joint work with Kazuya Kato) 鈴木香織(東大数理)\rho(X) = 1, f \le 2 のQ-Fano 3-fold Fanoの分類engDepartment of Mathematics, Hokkaido University14-xx ALGEBRAIC GEOMETRYHodge Theory and Algebraic Geometrybulletin (article)414Hokkaido University technical report series in mathematics1348-4338751AA11958774007510.14943/633理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6922019-04-25T02:38:47Zhdl_2115_680hdl_2115_116Giga, Y.Yamashita, H.2005-10-24T09:01:18Z2001-01-01http://hdl.handle.net/2115/692http://eprints3.math.sci.hokudai.ac.jp/0411/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL2000年度談話会・特別講演アブストラクト集 Colloquium Lectures 北海道大学理学部数学教室bulletin (article)410Hokkaido University technical report series in mathematics1348-433867155AA11958766006710.14943/634理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6932019-04-25T03:18:31Zhdl_2115_680hdl_2115_116儀我, 美一2005-10-24T09:01:19Z1998-01-01http://hdl.handle.net/2115/693http://eprints3.math.sci.hokudai.ac.jp/0412/jpnDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONS界面ダイナミクス : 曲率の効果bulletin (article)413Hokkaido University technical report series in mathematics1348-433856144AA11958755005610.14943/635理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6942019-04-25T03:01:26Zhdl_2115_680hdl_2115_116Ozawa, Tohru2005-10-24T09:01:20Z1999-11-01http://hdl.handle.net/2115/694http://eprints3.math.sci.hokudai.ac.jp/0413/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSProceedings of Sapporo Guest House Minisymposium on NONLINEAR WAVE EQUATIONSbulletin (article)413Hokkaido University technical report series in mathematics1348-433861167AA11958760006110.14943/636理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6952019-04-25T02:33:11Zhdl_2115_680hdl_2115_116Ono, K.Honda, N.2005-10-24T09:01:21Z2000-01-01http://hdl.handle.net/2115/695http://eprints3.math.sci.hokudai.ac.jp/0415/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL1999年度談話会・特別講演アブストラクト集 Colloquium Lectures 北海道大学理学部数学教室bulletin (article)410Hokkaido University technical report series in mathematics1348-4338631AA11958762006310.14943/637理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6962019-04-25T03:52:44Zhdl_2115_680hdl_2115_116Giga, Y.Kobayashi, R.2005-10-24T09:01:22Z1999-01-01http://hdl.handle.net/2115/696http://eprints3.math.sci.hokudai.ac.jp/0416/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSAbstracts of Sapporo Symposium on Anisotropic Effects in a Crystal Growth Problem and its Mathematical Analysis (SAM)bulletin (article)413Hokkaido University technical report series in mathematics1348-4338581AA11958757005810.14943/638理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6972019-04-25T00:16:23Zhdl_2115_680hdl_2115_116Ozawa, T.Giga, Y.Jimbo, S.Nakamura, G.2005-10-24T09:01:23Z2002-01-01http://hdl.handle.net/2115/697http://eprints3.math.sci.hokudai.ac.jp/0418/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSProceedings of the 27th Sapporo Symposium on Partial Differential Equationsbulletin (article)413Hokkaido University technical report series in mathematics1348-4338741AA11958773007410.14943/639理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6982019-04-25T00:46:23Zhdl_2115_680hdl_2115_116Tsuda, I.Kawazumi, N.2005-10-24T09:01:24Z1999-01-01http://hdl.handle.net/2115/698http://eprints3.math.sci.hokudai.ac.jp/0423/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL1998年度談話会・特別講演アブストラクト集 Colloquium Lectures 北海道大学理学部数学教室bulletin (article)410Hokkaido University technical report series in mathematics1348-4338601AA11958759006010.14943/640理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/6992019-04-25T04:49:51Zhdl_2115_680hdl_2115_116Ozawa, T.Yamada, H.-F.2005-10-24T09:01:26Z1998-01-01http://hdl.handle.net/2115/699http://eprints3.math.sci.hokudai.ac.jp/0424/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL1997年度談話会・特別講演アブストラクト集 Colloquium Lectures 北海道大学理学部数学教室bulletin (article)410Hokkaido University technical report series in mathematics1348-4338551AA11958754005510.14943/641理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7002019-04-25T04:49:49Zhdl_2115_680hdl_2115_116Yamada, Hirofumi2005-10-24T09:01:28Z1997-01-01http://hdl.handle.net/2115/700http://eprints3.math.sci.hokudai.ac.jp/0438/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL1996年度談話会・特別講演アブストラクト集 Colloquium Lectures 北海道大学理学部数学教室bulletin (article)410Hokkaido University technical report series in mathematics1348-4338501AA11958749005010.14943/642理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7012019-04-25T00:57:53Zhdl_2115_680hdl_2115_116Izumiya, ShuichiIshikawa, Go-oShimada, Ijiro2005-10-24T09:01:29Z2003-09-13http://hdl.handle.net/2115/701http://eprints3.math.sci.hokudai.ac.jp/0046/現在、プログラムのみ。engDepartment of Mathematics, Hokkaido University53-xx DIFFERENTIAL GEOMETRYThe 12th MS-IRI "Singularity Theory and Its Applications" ABSTRACTSbulletin (article)414Hokkaido University technical report series in mathematics1348-4338781AA11958777007810.14943/643理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7022019-04-25T03:01:24Zhdl_2115_680hdl_2115_116Ozawa, T.Tsutsumi, Y.2005-10-24T09:01:29Z2004-01-01http://hdl.handle.net/2115/702http://eprints3.math.sci.hokudai.ac.jp/0505/CONTENTS J. Bona Derivation and some fundamental properties of nonlinear dispersive waves equations F. Planchon Schr\""odinger equations with variable coecients P. Rapha\""el On the blow up phenomenon for the L^2 critical non linear Schrodinger EquationengDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSLECTURES ON NONLINEAR DISPERSIVE EQUATIONS Ibulletin (article)413Hokkaido University technical report series in mathematics1348-4338851AA11958784008510.14943/644理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7032019-04-25T01:30:36Zhdl_2115_680hdl_2115_116Ozawa, T.Tsutsumi, Y.2005-10-24T09:01:30Z2004-01-01http://hdl.handle.net/2115/703http://eprints3.math.sci.hokudai.ac.jp/0506/Program N. Tzvetkov Ill-posedness issues for nonlinear dispersive equations H. Koch Dispersive estimates and applicationsengDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSLECTURES ON NONLINEAR DISPERSIVE EQUATIONS IIbulletin (article)413Hokkaido University technical report series in mathematics1348-4338861AA11958785008610.14943/645理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7042019-04-25T02:11:41Zhdl_2115_680hdl_2115_116Ozawa, T.Tsutsumi, Y.2005-10-24T09:01:31Z2004-01-01http://hdl.handle.net/2115/704http://eprints3.math.sci.hokudai.ac.jp/0507/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSCOE Symposium Nonlinear Dispersive Equationsbulletin (article)413Hokkaido University technical report series in mathematics1348-4338871AA11958786008710.14943/646理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7052019-04-25T04:09:42Zhdl_2115_680hdl_2115_116Giga, Yoshikazu2005-10-24T09:01:32Z2002-01-01http://hdl.handle.net/2115/705http://eprints3.math.sci.hokudai.ac.jp/0075/Preface This book is intended to be a self-contained introduction to analytitc foundation of a level set method for various surface evolution equations including curvature flow equa-tions. These equations are important in various fields including material sciences, image processing and differential geometry. The goal of this book is to introduce a generalized notion of solutions allowing singularities and solve the initial-value problem globally-in-time in generalized sense. Various equivalent definitions of solutions are studied. Several new results on equivalence are also presented. This book contains rather complete introduction to the theory of viscosity solutions which is a key tool for the level set method. Also a self-contained explanation is given for general surface evolution equations of the second order. Although most of results in this book is more or less known, they are scattered in several references sometimes without proof. This book presents these results in a synthetic way with full proofs. However, the references are not exhaustive at all. This book is suitable for applied researchers who would like to know the detail of the theory as well as its flavour. No familiarity of differential geometry and the theory of viscosity solutions is required. Only prerequisites are calculus, linear algebra and some familiarity of semicontinuous functions. This book is also suitable for upper level of under graduate students who are interested in the field. This book is based on my Lipschitz lectures in Bonn 1997. The author is grateful to its audience for their interest. The author is also grateful to Professor Naoyuki Ishimura, Professor Reiner Sch�tzle, Professor Katsuyuki Ishii and Professor Masaki Ohnuma for their critical remarks on earlier versions of this book. The financial support of the Japan Society for the Promotion of Science (no. 10304010, 11894003, 12874024, 13894003) is gratefully acknowledged. Finally, the author is grateful to Ms. Hisako Iwai for careful typing of the manuscripts in latex style.engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSSurface Evolution Equations : a level set methodbulletin (article)413Hokkaido University technical report series in mathematics1348-4338711AA11958770007110.14943/647理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7062019-04-25T01:42:19Zhdl_2115_680hdl_2115_116Namiki, Takao2005-10-24T09:01:32Z2004-01-01http://hdl.handle.net/2115/706http://eprints3.math.sci.hokudai.ac.jp/0848/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL北海道大学数学教室におけるメタデータ交換プロトコルOAI-PMHに準拠したe-printサーバ構築bulletin (article)410Hokkaido University technical report series in mathematics1348-4338881AA11958787008810.14943/648理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7072019-04-25T01:30:37Zhdl_2115_680hdl_2115_116Izumiya, Shyuichi2005-10-24T09:01:33Z2005-01-01http://hdl.handle.net/2115/707http://eprints3.math.sci.hokudai.ac.jp/0956/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL第1回数学総合若手研究集会 : MOTIONCOE Conference for Young Researchersbulletin (article)410Hokkaido University technical report series in mathematics1348-4338891AA11958788008910.14943/649理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7082019-11-11T06:05:39Zhdl_2115_680hdl_2115_116Saal, Juergen2005-10-24T09:01:34Z2005-01-01http://hdl.handle.net/2115/708http://eprints3.math.sci.hokudai.ac.jp/0962/engDepartment of Mathematics, Hokkaido University00-xx GENERAL1st COE Lecture Series $H^\infty$-calculus for the Stokes operator on $L_q$-spacesbulletin (article)410Hokkaido University technical report series in mathematics1348-4338901AA11958789009010.14943/650理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7092019-04-25T02:11:38Zhdl_2115_680hdl_2115_116Miyajima, ShizuoTakeo, FukikoNakazi, Takahiko2005-10-24T09:01:35Z2005-01-01http://hdl.handle.net/2115/709http://eprints3.math.sci.hokudai.ac.jp/0963/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL第13回関数空間セミナー報告集(北大21世紀COEプログラム「特異性から見た非線形構造の数学」協賛)bulletin (article)410Hokkaido University technical report series in mathematics1348-4338911AA11958790009110.14943/651理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7102019-04-25T03:07:05Zhdl_2115_680hdl_2115_116Umeda, Noriaki2005-10-24T09:01:36Z2005-01-01http://hdl.handle.net/2115/710http://eprints3.math.sci.hokudai.ac.jp/0964/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL第4回COE研究員連続講演会 : 反応 : 拡散方程式の大域解と爆発解についてbulletin (article)410Hokkaido University technical report series in mathematics1348-4338921AA11958791009210.14943/652理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7112019-04-25T01:53:59Zhdl_2115_680hdl_2115_116Arima, Ken-Ichiro2005-10-24T09:01:36Z2005-01-01http://hdl.handle.net/2115/711http://eprints3.math.sci.hokudai.ac.jp/0965/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL第2回COE研究員連続講演会 : 極小モデルプログラムの入門およびその正標数への拡張bulletin (article)410Hokkaido University technical report series in mathematics1348-4338931AA11958792009310.14943/653理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7122019-04-25T04:32:29Zhdl_2115_680hdl_2115_116Nakano, Yumiharu2005-10-24T09:01:37Z2005-01-01http://hdl.handle.net/2115/712http://eprints3.math.sci.hokudai.ac.jp/0966/engDepartment of Mathematics, Hokkaido University00-xx GENERAL学位論文 Doctoral thesis “OPTIMAL HEDGING IN THE PRESENCE OF SHORTFALL RISK”bulletin (article)410Hokkaido University technical report series in mathematics1348-4338941AA11958793009410.14943/654理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7132019-04-25T00:16:20Zhdl_2115_680hdl_2115_116Matsumoto, KeijiJinzenji, Masao2005-10-24T09:01:38Z2005-01-01http://hdl.handle.net/2115/713http://eprints3.math.sci.hokudai.ac.jp/0968/jpnDepartment of Mathematics, Hokkaido University00-xx GENERAL2004年度談話会・特別講演アブストラクト集bulletin (article)410Hokkaido University technical report series in mathematics1348-4338951AA11958794009510.14943/655理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7142022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Hongjiang, QiaoRichard, C. KoyaNakagawa, KojiTanaka, HirokiFujita, HisakazuTakimoto, MasatoKuzumaki, Noboru2005-10-26T03:01:26Z2005-06http://hdl.handle.net/2115/714Amyloid-beta (Abeta) peptides play a central role in the development of Alzheimer’s disease. They are known to induce mitochondrial dysfunction and caspase activation, resulting in apoptosis of neuronal cells. Here we show that human cytoplasmic gelsolin inhibits Abeta peptide-induced cell death of neuronally differentiated rat pheochromocytoma (PC-12) cells. We also show that the segment 5 but not 6 of human cytoplasmic gelsolin is the important region responsible for inhibition of Abeta-induced cytotoxicity. Mitochondrial dysfunction associated with cell death, membrane potential loss and the release of cytochrome c are all abrogated in the presence of human full-length or segment 5 cytoplasmic gelsolin. Furthermore, RNA interference to reduce expression of endogenous gelsolin in PC12 cells shows that rat gelsolin act as an inhibitor of Abeta cytotoxicity. These results demonstrate that cytoplasmic gelsolin plays a important role in inhibiting Abeta-induced cytotoxicity by inhibiting apoptotic mitochondrial changes. The segment 5 of human cytoplasmic gelsolin is sufficient for the function.engElsevierhttp://www.sciencedirect.com/science/journal/01974580gelsolinAlzheimer diseaseamyloid-betarat pheochromocytomamitochondrial membrane potentialcytotoxicitycytochrome cInhibition of Alzheimer’s amyloid-beta peptide-induced reduction of mitochondrial membrane potential and neurotoxicity by gelsolinarticle (author version)493.7Neurobiology of Aging019745802684985510.1016/j.neurobiolaging.2004.08.00315718043遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7152022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Tanaka, HirokiShirkoohi, RezaNakagawa, KojiQiao, HongjiangFujita, HisakazuOkada, FutoshiHamada, Jun-ichiKuzumaki, SatoshiTakimoto, MasatoKuzumaki, Noboru2005-10-26T03:06:52Z2005-10-10http://hdl.handle.net/2115/715Epithelial-mesenchymal transition (EMT) describes a process occurring during development and oncogenesis by which epithelial cells obtain fibroblast-like properties and show reduced cell adhesion and increased motility. In this report we demonstrated typical EMT in human mammary epithelial MCF10A siRNA gelsolin knockdown cells. EMT was characterized by fibroblastic morphology, loss of contact inhibition and focus formation in monolayer growth, enhanced motility and invasiveness in vitro, increased actin filaments, overexpression of RAC, activation of both ERK and AKT, inactivation of GSK3, conversion of cadherin from the E- to N-type, and induction of the transcription factor Snail. These results suggested that gelsolin functions as a switch that controls E- and N-cadherin conversion via Snail,and demonstrated that its knockdown leads to EMT in human mammary epithelial cells and possibly to the development of human mammary tumors.engWiley-Liss, Inc.http://www.interscience.wiley.com/Copyright (c) 2005 Wiley-Liss, Incactin-regulatory proteinsmall interfering RNAEMTsiRNA gelsolin knockdown induces epithelial-mesenchymal transition with a cadherin switch in human mammary epithelial cellsarticle (author version)葛巻, 暹491.65International Journal of Cancer0020-713611871680169110.1002/ijc.2155916217750遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7162022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Haga, KazunoriFujita, HisakazuNomoto, MinoruSazawa, AtaruNakagawa, KojiHarabayashi, ToruShinohara, NobuoTakimoto, MasatoNonomura, KatsuyaKuzumaki, Noboru2005-10-28T09:14:38Z2004-05-20http://hdl.handle.net/2115/716We previously reported that gelsolin gene expression is reduced in various tumors. In an effort to gain further insights into the mechanism of gelsolin downregulation in tumors, we examined the in vivo properties of the gelsolin promoter in urinary bladder cancer cell lines. Neither mutation nor hypermethylation were responsible for gene silencing at the promoter. After exposure to trichostatin A (TSA), a histone deacetylase inhibitor, gelsolin promoter activity was markedly enhanced in the cancer cells not in cells derived from normal tissue. Chromatin immunoprecipitation (ChIP) assays revealed that both histones H3 and H4 were hypoacetylated in the promoter region of the cancer cells, and the accumulation of acetylated histones were detected by TSA treatment. In vivo footprinting analysis revealed the presence of dimethylsulfate (DMS) hypersensitive site in the untranslated region around nucleotide -35 only in the cancer cells but not in cells derived from normal tissue, and analysis of KMnO4 reactive nucleotides showed that the stem loop structure could be formed in vivo of the cancer cells. This novel stem loop structure may play a part in regulating the transcription of the gelsolin gene in the cancer cells. .. These results suggest that nucleosome accessibility through histone deacetylation and structural changes (DMS hypersensitivity and stem loop structure) in the promoter region form the basis of the mechanism leading to the silencing of gelsolin gene in human bladder cancer.engWiley-Liss, Inc.http://www.interscience.wiley.com/Copyright (c) 2004 Wiley-Liss, Incgelsolingene silencingdimethylsulfate hypersensitivitybladder cancerin vivo footprintingGelsolin gene silencing involving unusual hypersensitivities to dimethylsulfate and KMnO4 in vivo footprinting on its promoter regionGene silencing of gelsolin in bladder cancerarticle (author version)葛巻, 暹491.69International Journal of Cancer00207136111687388010.1002/ijc.2034815300799遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7172022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Takeuchi, M.Shichinohe, T.Senmaru, N.Miyamoto, M.Fujita, H.Takimoto, M.Kondo, S.Katoh, H.Kuzumaki, N.2005-10-28T09:14:59Z2000-03http://hdl.handle.net/2115/717In pancreatic cancer, the mutation of c-K-ras is a critical event of tumor growth and metastasis.1 We have previously demonstrated a dominant negative effect of N116Y on the growth of pancreatic cancer cells.2 To evaluate the potential of N116Y for suppressing the metastatic growth of pancreatic tumor cells, we made a replication-deficient recombinant N116Y adenovirus driven by the carcinoembryonic antigen (CEA) promoter (Ad CEA-N116Y). We demonstrated that the expression of N116Y, growth inhibition, and apoptotic death induction were all specific to pancreatic cancer cell lines (PCI-35 and PCI-43) that were promoter positive, whereas no growth retardation was observed in human embryonic pancreas-derived cell line 1C3D3 after Ad CEA-N116Y infection. We examined the effect of Ad CEA-N116Y on the metastatic growth of PCI-43 colonies in liver, which were generated by tumor injection into the spleen of nude mice. The results showed that Ad CEA-N116Y effectively reduced the number of metastatic colonies without any complication by injecting intrasplenically five days after tumor cell inoculation. Thus N116Y can selectively suppress the metastatic growth of pancreatic tumor cell by using the CEA promoter driven adenovirus vector indicating that N116Y gene therapy may be potentially useful for the treatment of pancreatic cancer patients with liver micrometastasis.engNature Publishing Grouphttp://www.nature.com/gt/index.htmlras suppressorpancreatic cancerliver metastasisThe dominant negative H-ras mutant, N116Y, suppresses growth of metastaticSuppression of metastatic cancer by N116Yarticle (author version)葛巻, 暹491.69Gene Therapy76518526遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7182022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Richard, Chikara KoyaFujita, HisakazuShimizu, ShigeomiOhtsu, MakotoTakimoto, MasatoTsujimoto, YoshihideKuzumaki, Noboru2005-10-31T08:58:30Z2000-05-19http://hdl.handle.net/2115/718Apoptotic cell death, characterized by chromatin condensation, nuclear fragmentation, cell membrane blebbing, and apoptotic body formation, is also accompanied by typical mitochondrial changes. The latter includes enhanced membrane permeability, fall in mitochondrial membrane potential (m) and release of cytochrome c into the cytosol. Gelsolin, an actin regulatory protein, has been shown to inhibit apoptosis, but when cleaved by caspase-3, a fragment that is implicated as an effector of apoptosis is generated. The mechanism by which the full-length form of gelsolin inhibits apoptosis is unclear. Here we show that the overexpression of gelsolin inhibits the loss of m and cytochrome c release from mitochondria resulting in the lack of activation of caspase-3, -8,and -9in Jurkat cells treated with staurosporine, thapsigargin, and protoporphyrin IX. These effects were corroborated in vitro using recombinant gelsolin protein on isolated rat mitochondria stimulated with Ca2+, atractyloside, or Bax. This protective function of gelsolin, which was not due to simple Ca2+ sequestration, was inhibited by polyphosphoinositide binding. In addition we confirmed that gelsolin, besides its localization in the cytosol, is also present in the mitochondrial fraction of cells. Gelsolin thus acts on an early step in the apoptotic signaling at the level of mitochondria.http://www.jbc.org/engThe American Society for Biochemistry and Molecular BiologyCopyright (c) 2000 by the American Society for Biochemistry and Molecular Biology.Gelsolin Inhibits Apoptosis by Blocking Mitochondrial Membrane Potential Loss and Cytochrome c Releasearticle (author version)葛巻, 暹491.69Journal of Biological Chemistry00219258275201534315349遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7202022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Ohtsu, MakotoSakai, NorioFujita, HisakazuKashiwagi, MotoiGasa, ShinseiShimizu, ShigeomiEguchi, YutakaTsujimoto, YoshihideSakiyama, YukioKobayashi, KunihikoKuzumaki, Noboru2005-10-31T09:03:48Z1997-08http://embojournal.npgjournals.com/http://hdl.handle.net/2115/720Gelsolin is an actin-regulatory protein that modulates actin assembly and disassembly, and is believed to regulate cell motility invivo through modulation of the actin network.
In addition to its actin-regulatory function, gelsolin has also been proposed to affect cell growth. Our present experiments have tested the possible involvement of gelsolin in the regulation of apoptosis, which is significantly affected by growth. When overexpressed in Jurkat cells, gelsolin strongly inhibited apoptosis induced by anti-Fas antibody, C2-ceramide or dexamethasone, without changing the F-actin morphology or the levels of Fas or Bcl-2 family proteins. Upon the induction of apoptosis, an increase in CPP32(-like) protease activity was observed in the control vector transfectants, while it was strongly suppressed in the gelsolin transfectants.
Pro-CPP32 protein, an inactive form of CPP32 protease, remained uncleaved by anti-Fas treatment in the gelsolin transfectants, indicating that gelsolin blocks upstream of this protease. The tetrapeptide inhibitor of CPP32(-like) proteases strongly inhibited Fas-mediated apoptosis, but only partially suppressed both C2-ceramide- and dexamethasone-induced apoptosis. These data suggest that the critical target responsible for the execution of apoptosis may exist upstream of CPP32(-like) proteases in Jurkat cells and that gelsolin acts on this target to inhibit the apoptotic cell death program.engNature Publishing GroupapoptosisCPP32FasgelsolinJurkat cellsInhibition of apoptosis by the actin-regulatory protein gelsolinarticle (author version)葛巻, 暹491.69The EMBO Journal02614189161546504656遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7192022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138川村, 周三2005-10-31T09:03:47Z2005http://hdl.handle.net/2115/719大規模酪農では,乳牛の群管理技術と同時に個別管理技術が必要とされている。そこで近赤外分光法を用いた搾乳時のリアルタイム乳質診断技術の研究開発を行っている。試作した近赤外センサにより搾乳中の乳成分や体細胞数をリアルタイムに測定することができた。同時に搾乳1回分の平均の乳成分や体細胞数を搾乳終了時に求めることが可能となった。この技術により搾乳時に潜在性乳房炎の乳牛を診断することが可能となる。近赤外分光法によるリアルタイム乳質診断技術は,搾乳ロボットと組み合わせることにより乳牛の個別管理に利用可能であり,酪農における精密農業の発展に貢献する技術である。jpn文永堂出版近赤外分光法による搾乳時のリアルタイム乳質診断article (author version)Kawamura, Shuso648.13獣医畜産新報04470192587577581Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7272022-11-17T02:08:08Zhdl_2115_20044hdl_2115_124Nakamura, SeiichiSato, HirokiHirata, YuukiWatanabe, NobuhideHashimoto, Shunichi2005-11-01T06:29:11Z2005-11-21http://hdl.handle.net/2115/727A total synthesis of zaragozic acid C by a convergent strategy is described in which the key features include (1) the simultaneous creation of the C4 and C5 quaternary stereogenic centers by a Sn(OTf)2-promoted aldol coupling reaction between an α-keto ester and a silyl ketene thioacetal derived from L- and D-tartaric acids, respectively, (2) the direct introduction of lithium acetylide as the C1 side chain equivalent onto the fully functionalized aldehyde, and (3) construction of the bicyclic core structure by acid-catalyzed internal ketalization under kinetically controlled conditions.engElsevierhttp://www.sciencedirect.com/science/journal/00404020Zaragozic acidsAldol reactionα-Keto esterSilyl ketene thioacetalInternal ketalizationTotal synthesis of zaragozic acid C by an aldol-based strategyarticle (author version)中村, 精一佐藤, 浩樹平田, 勇樹渡邉, 信英橋本, 俊一430Tetrahedron004040206147110781110610.1016/j.tet.2005.09.030薬学研究院 (Faculty of Pharmaceutical Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7322022-11-17T02:08:08Zhdl_2115_20044hdl_2115_124Minami, KazushiTsutsui, HideyukiSaito, HiroakiNambu, HisanoriAnada, MasahiroHashimoto, Shunichi2005-11-04T08:04:23Z2005-10-19http://hdl.handle.net/2115/732A highly enantio- and diastereoselective intramolecular C–H insertion reaction of α-diazo esters has been achieved with the use of dirhodium(II) tetrakis[N-phthaloyl-(S)-tert-leucinate] as a catalyst, providing exclusively cis-2-arylcyclopentane-1-carboxylates in up to 95% ee with no evidence of alkene formation.engWiley-VCHhttp://www.interscience.wiley.com/asymmetric catalysisC–C bond formationC–H insertionchiral dirhodium(II) carboxylatescyclizationα-diazo estersHighly Enantio- and Diastereoselective Construction of 1,2-Disubstituted Cyclopentane Compounds by Dirhodium(II) Tetrakis[N-phthaloyl-(S)-tert-leucinate]-Catalyzed C–H Insertion Reactions of α-Diazo Estersarticle (author version)穴田, 仁洋499Advanced Synthesis & Catalysis1615415034711-131483148710.1002/adsc.200505201薬学研究院 (Faculty of Pharmaceutical Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7332022-11-17T02:08:08Zhdl_2115_20071hdl_2115_183Kurokawa, KazuyaYamauchi, AkiraMatsushita, Shinya2005-11-08T10:56:27Z2005http://hdl.handle.net/2115/733NbSi2 is a promising candidate as a coating material for Nb-base alloys. However, it shows complicated oxidation behavior, depending on oxidation temperature. In the present study, in order to clarify the oxidation resistance of NbSi2, oxidation tests of sintered NbSi2 were carried out at temperatures ranging from 773 to 1673 K in air. Moreover, the effect of addition of boron on oxidation resistance of NbSi2 was clarified. NbSi2 showed accelerated oxidation at temperatures of 1073 K and above. The accelerated oxidation was caused by formation of a porous oxide layer, which may be due to the phase transformation from amorphous to crystalline SiO2. The addition of boron to NbSi2 leads to the formation of a protective borosilicate layer, resulting in great improvement of the oxidation resistance. Consequently, NbSi2 added with boron shows excellent oxidation resistance up to at least 1673 K.engTrans Tech Publications Inc.http://www.scientific.net/0-87849-980-6/243/Niobium disilicideoxidation behavioroxide scaleaddition of boronimprovement of oxidation resistanceImprovement of Oxidation Resistance of NbSi2 by Addition of Boronarticle (author version)山内, 啓565Materials Science Forum02555476502243248エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7342022-11-17T02:08:08Zhdl_2115_20071hdl_2115_183Yamauchi, AkiraKurokawa, KazuyaTakahashi, Hideaki2005-11-08T10:58:37Z2003-06http://hdl.handle.net/2115/734Stainless steels in atmospheres containing H2O form a Cr2O3 scale in the early stage of oxidation. However, the Cr2O3 scale gradually degrades with time. In order to determine the effect of H2O on the deterioration of a Cr2O3 scale, evaporation behavior of Cr2O3 in N2-O2-H2O atmospheres was investigated. The rate of mass loss in a N2-O2-H2O atmosphere was found to be one order of magnitude higher than the rates in N2-O2 and N2-H2O atmospheres, indicating that deterioration of the Cr2O3 scale is likely to occur in mixed atmospheres of oxygen and water vapor. Volatilization of Cr2O3 is probably based on the following reactions: 1/2 Cr2O3(s)+ 3/4 O2(g)+ H2O(g)= CrO2(OH)2(g). However, it was also speculated that the reaction, Cr2O3(s)+ 3/2 O2(g)= 2 CrO3(g), affects the evaporation of Cr2O3 at temperatures higher than 1323 K. The evaporation rate of Cr2O3 is roughly comparable to the growth rate of the Cr2O3 scale. Therefore, a Cr2O3 scale can be degraded by the evaporation of Cr2O3.engSpringerThe original publication is available at www.springerlink.comHigh temperature oxidationH2O-Containing atmosphereEvaporation of Cr2O3Deterioration of Cr2O3 scaleEvaporation of Cr2O3 in Atmospheres Containing H2Oarticle (author version)山内, 啓565Oxidation of Metals0030770X595/651752710.1023/A:1023671206976エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7352022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138川村, 周三竹倉, 憲弘横江, 未央伊藤, 和彦2005-11-08T11:03:55Z2004http://hdl.handle.net/2115/735Effects of temperature below ice point on vigor and germination rate, and quality characteristics of rice during four-year storage were investigated in this study. Low temperature maintained dormancy of rice and hence preserved vitality of rice. There was very little deterioration in the quality of rice stored at low temperature. Eating quality of rice stored at temperatures less than 5°C for four years was the same as that of newly harvested rice. These results indicate that preservation of rough rice quality in farm scale silos for several years is possible by storing rice at an average temperature below 5°C during storage.jpn低温生物工学会DormancyVitalityEating qualityLong-term rice stockpileSuper-low-temperature storage休眠性生命力食味米の長期備蓄超低温貯蔵氷点下で4年間貯蔵した米の発芽勢と発芽率および品質Vigor and Germination Rate, and Quality of Rice Stored below Ice Point for Four Yearsarticle (author version)Kawamura, ShusoTakekura, KazuhikoYokoe, MioItoh, Kazuhiko616.19低温生物工学会誌134079025027175Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7532022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Kuzumaki, NoboruOgiso, YoshifumiOda, AtsushiFujita, HisakazuSuzuki, HiroakiSato, ChiharuMullauer, Leonhard2005-11-10T10:21:54Z1989http://hdl.handle.net/2115/753A flat revertant, R1, was isolated from human activated c-Ha-ras-1 (hu-ac-Ha-ras) gene-transformed NIH 3T3 cells (EJ-NIH 3T3) treated with mutagens. R1 contained unchanged transfected hu-ac-Ha-ras DNA and expressed high levels of hu-ac-Ha-ras-specific mRNA and p21 protein. Transfection experiments revealed that NIH 3T3 cells could be transformed by DNA from R1 cells but R1 cells could not be retransformed by Kirsten sarcoma virus, DNA from EJ-NIH 3T3 cells, hu-ac-Ha-ras, v-src, v-mos, simian virus 40 large T antigen, or polyomavirus middle T antigen. Somatic cell hybridization studies showed that R1 was not retransformed by fusion with NIH 3T3 cells and suppressed anchorage independence of EJ-NIH 3T3 and hu-ac-Ha-ras gene-transformed rat W31 cells in soft agar. These results suggest that the reversion and resistance to several oncogenes in R1 is due not to cellular defects in the production of the transformed phenotype but rather to enhancement of cellular mechanisms that suppress oncogenic transformation.engAmerican Society for MicrobiologyCopyright (c) 1989 American Society for MicrobiologyResistance to Oncogenic Transformation in Revertant R1 of Human ras-Transformed NIH 3T3 cellsarticle (author version)葛巻, 暹463Molecular and Cellular Biology027073069522582263遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7542022-11-17T02:08:08Zhdl_2115_20032hdl_2115_122Sakurai, Yoshihide2005-11-11T01:45:27Z2004http://hdl.handle.net/2115/754This paper studies the recent cult controversy exemplified by the lawsuits filed by self-proclaimed "victims" damaged by the Unification Church and in reverse by so-called "cult" members who were also proclaimed "sufferers" whose personal right of religious freedom had been violated in deprogramming. To consider the contents of these rulings demonstrates the Japanese religious consciousness in reference to the recent cult controversy, because judges tend to consider in controversial cases of religious troubles the extent to which they deviate from socially accepted norms.engInternational Cultic Studies AssociationIllegal missionary work lawsuits and exit counseling for Unification Church membersarticle (author version)櫻井, 義秀169Cultic studies review33183201文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7552018-03-02T01:23:40Zhdl_2115_20032hdl_2115_122櫻井, 義秀2005-11-11T08:28:01Z2004-1109199772http://hdl.handle.net/2115/755jpnFFIジャーナル編集委員会食文化から考えるタイ社会article (author version)Sakurai, Yoshihide383.8Foods & food ingredients journal of Japan2091110071016文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7562018-03-02T01:23:41Zhdl_2115_20032hdl_2115_122櫻井, 義秀2005-11-14T02:59:14Z2003-0903873293http://hdl.handle.net/2115/756jpn日本宗教学会書評:『宗教の復権-グローバリゼーション・カルト論争・ナショナリズム-』中野毅著article (author version)Sakurai, Yoshihide161.3宗教研究03873293772238244文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7572022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Yoshimura, YasuoMa, Ning2005-11-14T10:31:49Z2003http://hdl.handle.net/2115/757Fishing vessels generally have good performance in ship manoeuvrability. The relatively large rudder and propeller assist to make such performance, so there has been little need to the manoeuvering prediction. However, the manoeuvring prediction has become very important because the strong rudder force sometimes causes the capsizing accident. As for the principal dimensions of fishing vessels, they are different from conventional merchant ships. The ship length is generally small. The length beam ratio: L/B becomes less than 3.0 particularly in Northern Europe. Besides, they large initial trim by the stern. Therefore, the hydrodynamic force becomes quite complicated. This makes a difficulty when predicting the manoeuvrability of these vessels, In this paper, the authors show the database of hydrodynamic derivatives with several fishing vessels including the recent European wide beam vessel, and then introduce the empirical formulas to predict the hydrodynamic derivatives as well as other hydrodynamic coefficients based on the obtained database. Using these empirical methods, manoeuvring ship motions can be easily simulated and the manoeuvring prediction successfully done.engThe Society of Naval Architects of Japan, Japan Institute of Navigation and International Marine Simulator ForumManoeuvring Prediction of Fishing Vesselsproceedings (author version)芳村, 康男665MARSIM'03 Conference ProceedingspRC-29-1-10水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7582022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141Yoshimura, YasuoKose, KunijiHiraguchi, Tomihiro2005-11-14T10:32:06Z2000-05-08http://hdl.handle.net/2115/758International Maritime Organization (IMO) adopted the interim standards for ship manoeuvrability A751(18) in 1993 for preventing the marine disasters. These standards cover the typical manoeuvrability including turning ability, course-keeping and yaw-checking ability and stopping ability. As these standards, however, were not settled under the sufficient manoeuvrability data, it was noted that they should be reviewed and finalised after practical experiences. For this purpose, the Ministry of Transport of Japan has been gathering the many trial data for these 5 years, and pointed out that the criteria regarding to course-keeping, yaw-checking and stopping abilities have some problems in the practical application to the actual ships [IMO DE35 INF.14]. In this paper, the authors review the manoeuvrability standards particularly focussing the criteria for the course-keeping and yaw-checking abilities in the present interim standards. Firstly, the indices for these abilities are discussed. Then, the criteria are evaluated based on the many trial data as well as theoretical and simulator studies. Finally, some proposals are summarised for the revise of the interim manoeuvrability standards.engInternational Marine Simulator ForumCriteria for Yaw-checking and Course- keeping Abilities in IMO's Interim Standards for Ship Manoeuvrabilityproceedings (author version)芳村, 康男665MARSIM 2000 Conference Proceedings389400水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7592022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141芳村, 康男馬, 寧鈴木, 四郎梶原, 善之2005-11-14T10:32:29Z2002http://hdl.handle.net/2115/759Fishing boats suffer from much capsizing as compared with other vessels. It may be pointed out that the stability of fishing boats tend to be poor as the bases of the severe operations and the poor management of loading condition as well as the problem with the restrictions of principal dimensions of ship. According to the recent capsizing of the trawler “Ryuho-maru V”, Ministry of Land, Infrastructure and Transport of Japan forced to check the stability of existing fishing boats and to improve the stability if not enough.
As for the improvement of the stability, the fitting of a bulge on sidewall of the vessel is one of the best solutions. This method was adopted in the old naval fleets and polar research ship “Sohya” in Japan. However, it is not commonly used. It is important to clarify for the design of the bulge what influence it has on the ship’s performances not only on the stability.
In this paper, the authors have investigated into the effect of the bulge on manoeuvrability and the manoeuvring prediction, based on the model experiments and the full-scale experiments of original and enlarged fisheries research ship “Ushio-maru”. They have also investigated into the predicting method for a fishtail type high-lift rudder is proposed.
The concluding remarks are summarized as below.
(1) By fitting the bulge on sidewalls of the vessel, hydrodynamic sway damping lever is slightly reduced. In addition, the yaw damping lever is reduced by the increase of ship’s mass, which keeps the almost the same stability lever of course keeping as the original ship.
(2) For the prediction of the hydrodynamic derivatives of the fishing boat with an initial trim, Kijima’s formula are useful except Y'β , N'r , Y'r -m'x using the effective draught and block coefficient of the ship. It is desirable that Y'β , N'r , Y'r -m'x are not corrected by the initial trim.
(3) For the simulation of the manoeuvring ship motion with the fishtail type high-lift rudder, the rudder open characteristic is to be altered in the proposed mathematical model. The coefficient becomes 1.4 times larger than the conventional rudder. Even for the large rudder angle such as 65°, the conventional rudder model is still available, because the actual angle of attack is decreased by the turning motion of ship.jpn日本造船学会バルジによる改造漁船船型の操縦性能Manoeuvring Performance of the Fishing Boat Modified by a Bulgearticle (author version)Yoshimura, Yasuo665日本造船学会論文集051484991923746水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7602022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141馬, 寧芳村, 康男木村, 暢夫鈴木, 四郎山越, 康行2005-11-14T10:32:47Z2002http://hdl.handle.net/2115/760In order to improve the stability and to increase the working area for fishing vessel, bulges are often added on ship sides from underwater part up to upper deck. From the view point of seakeeping quality, it is important to clarify the effect of bulges on ship dynamic response as well as static stability. A fisheries research vessel “Ushio-maru” has been rebuilt (elongated and bulges fitted) recently. In this paper, we present the results of investigation into its stability improvement and study on the influence of bulge on its motion in waves by model experiments and theoretical calculations. It was shown that stability improvement is considerably achieved by fitting bulges. In addition, resonant roll motion was slightly reduced due to damping effect of bulges. It was also found that there are no significant difference in heave and pitch due to the existence of bulge. On the other hand, roll motion in beam and quartering long waves increase. Furthermore, at-sea seakeeping tests of the ship with bulges were conducted, motion characteristics in real ocean waves is described. Finally, authors point out the merits and demerits of fitting bulge to fishing vessel.jpn日本造船学会バルジによる改造漁船船型の波浪中運動の基本特性Fundamental Characteristics of Motion in Waves of a Fishing Vessel with Bulgesarticle (author version)Yoshimura, Yasuo665日本造船学会論文集05148499192219225水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7612009-09-15T04:10:01Zhdl_2115_20038hdl_2115_123濱田, 康行2005-11-162005-11http://hdl.handle.net/2115/761『信用組合』第52巻第11号の巻頭言。著者のウェブサイトでも公開されている。http://www.econ.hokudai.ac.jp/%7Ehamada/articles.htmljpn社団法人 全国信用組合中央協会http://creativecommons.org/licenses/by-nc-sa/2.1/jp/金融城下町の秋column (author version)Hamada, Yasuyuki335.6信用組合521123経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7622022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Mullauer, LeonhardFujita, HisakazuIshizaki, AkiraKuzumaki, Noboru2005-11-16T01:28:32Z1993-09http://www.nature.com/onc/index.htmlhttp://hdl.handle.net/2115/762The flat revertant R1, isolated from human activated Ha-ras oncogene-transformed NIH3T3 fibroblasts (EJ-NIH3T3), expresses a variant form of the actin-regulatory protein gelsolin (p92-5.7). We have cloned CDNAS encoding p92-5.7 and identified as the cause of the expression of p92-5.7 a point mutation in codon 321, which results in an amino acid change from proline to histidine. In order to understand the role of p92-5.7 in reversion of ras-transformed cells, CDNAS encoding p92-5.7 or human authentic gelsolin as a control were transfected into EJ-NIH3T3 cells. All the transfectants that produced p92-5.7 and one of three transfectants that produced human authentic gelsolin either lost or reduced tumorigenicity in syngeneic mice. These results demonstrate that mutated gelsolin can suppress a ras tumor and suggest that authentic gelsolin, if expressed at increased levels, may have a similar suppressive potential. Our data propose an important role for gelsolin in cellular signal transduction pathways that involve the mammalian ras proto-oncogene.engNature Publishing GroupTumor-suppressive function of mutated gelsolin in ras-transformed cellsarticle (author version)葛巻, 暹491.65Oncogene095092328925312536遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7642023-01-19T03:10:04Zhdl_2115_20058hdl_2115_149Senmaru, NaotoShichinohe, ToshiakiTakeuchi, MotoyaMiyamoto, MasakiSazawa, AtaruOgiso, YoshifumiTakahashi, ToshiyukiOkushiba, ShyunichiTakimoto, MasatoKato, HiroyukiKuzumaki, Noboru2005-11-16T10:13:15Z1998-10-29http://hdl.handle.net/2115/764Our previous studies demonstrated that introduction of a dominant negative H-ras mutant, N116Y, inhibits the growth of various types of cancer cells in vitro. In this study, we tested the efficacy of N116Y in blocking the growth of esophageal cancer cells using an adenoviral vector. Infection with N116Y adenovirus, (AdCMV-N116Y), in which N116Y expression is driven by the cytomegalovirus promoter, significantly reduced the in vitro growth of all esophageal cancer cell lines studied. Esophageal cancer cells that contained wild-type K-ras and H-ras (TE8, SGF3, SGF7) were more sensitive to AdCMV-N116Y than HEC46 cells that expressed mutant K-ras protein.Most importantly, direct injection of AdCMVN116Y into TE8-or SGF3-induced tumors in nude mice suppressed their growth significantly. To examine the suppressive mechanism of N116Y, cell cycle profile and the activation of extracellular signal-regulated kinase 2 (Erk2) were examined by flow cytometry and Western blot analysis, respectively. In TE8 cells, progression into S phase was clearly blocked after infection with AdCMV-N116Y. Infection with AdCMV-N116Y did not strongly suppress the activation of Erk2 after EGF stimulation in serum-starved HEC46 cells, whereas it completely suppressed activation in TE8, SGF3 and SGF7 cells. Our observations suggest that N116Y reduces growth of human esophageal cancer cells and suppresses the activation of Erk2; they also indicate that N116Y is a potential candidate gene for human esophageal cancer gene therapy.engWiley-Liss, Inc.http://www.interscience.wiley.com/Copyright (c) 1998 Wiley-Liss, IncSuppression of Erk activation and in vivo growth in esophageal cancer cells by the dominant negative Ras mutant, N116Yarticle (author version)葛巻, 暹491.65International Journal of Cancer0020713678336637110.1002/(SICI)1097-0215(19981029)78:3<366::AID-IJC18>3.0.CO;2-49766573遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7632018-03-02T01:23:41Zhdl_2115_20032hdl_2115_122櫻井, 義秀2005-11-16T07:23:38Z2004-07-13http://hdl.handle.net/2115/763jpn中外日報社グローバリゼーションとスピリチュアリティ復権column (author version)Sakurai, Yoshihide161.3中外日報67文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7652022-11-17T02:08:08Zhdl_2115_20048hdl_2115_140Chang, S. L.Nonaka, N.Kamiya, M.Kanai, Y.Ooi, H. K.Chung, W. C.Oku, Y.2005-11-17T05:23:27Z2005-05http://hdl.handle.net/2115/765Development of Taenia saginata asiatica metacestodes in SCID mice, and its infectivity in humans, golden hamsters, and Mongolian gerbils as alternative definitive hosts, were investigated. Cysticerci were recovered from SCID mice that were subcutaneously injected with hatched oncospheres of T. s. asiatica. The morphological changes of metacestodes were observed. The recovered cysticerci were fed to gerbils, hamsters and humans, to check for their infectivity. Tapeworms were recovered from gerbils and hamsters fed with 20 to 45 week-old cysticerci, and proglottids excretions were observed in human volunteers fed with 45 week-old cysticerci. However, no tapeworms were recovered from gerbils fed with 10 week-old cysticerci. Our results suggest that T. s. asiatica oncospheres needed more than 20 weeks to develop to maturity in SCID mice to be infective to both their natural and alternative definitive hosts.engSpringer-VerlagThe original publication is available at www.springerlink.comTaenia saginata asiaticaMetacestodeCysticercusSCID miceAlternative hostHuman infectionDevelopment of Taenia saginata asiatica metacestodes in SCID mice and its infectivity in human and alternative definitive hostsarticle (author version)野中, 成晃640Parasitology Research093201139629510110.1007/s00436-005-1328-415812671獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7662022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Sugawara, HirotakeSakai, Yosuke2005-11-17T07:10:59Z2003-08-21Journal of Physics D: Applied Physics, 36(16), 2003, p.1994-2000http://hdl.handle.net/2115/766We have simulated electron acceleration under short intense impulse electric fields of 0.1–1 kV cm-1 strength and ~1 ns duration in N2 at 65.5 Pa. The electron acceleration is completed in a practically collisionless condition when the impulse duration is comparable with or shorter than the electron mean free time. On the basis of this feature, we have proposed a way to produce a group of monoenergetic electrons. The electron energy after acceleration is controllable by the impulse strength and duration, and we have demonstrated selective promotion of the excitation producing N2(A 3Σu+) metastable excited molecules. The selectivity has been quantified as the efficiency of the electron energy utilized for the target reaction, and efficiencies of 20–30% have been achieved in this simulation. These values are higher than those of electron swarms in DC equilibrium, in which the efficiency is at most 10%. The electron behaviour under impulse electric fields and the dependence of the energy efficiency on the impulse profile have been investigated.engInstitute of Physicshttp://www.iop.org/EJ/journal/0022-3727/1Copyright (c) 2003 IOP Publishing Ltd.Electron acceleration in gas by impulse electric field and its application to selective promotion of an electron–molecule reactionarticle (author version)菅原, 広剛427Journal of Physics D: Applied Physics0022372736161994200010.1088/0022-3727/36/16/311情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7782019-07-04T04:36:16Zhdl_2115_20045hdl_2115_139李, 徳建三田地, 利之福田, 文彦大河原, 正文工藤, 豊2005-11-25T02:53:26Z2005-05http://hdl.handle.net/2115/778jpn社団法人 地盤工学会委員会主催シンポジウム No.133http://creativecommons.org/licenses/by-nc-sa/2.1/jp/Ground pollutionSimulationCentrifugeContaminant水溶性汚染物質による地盤汚染問題のシミュレーションproceedings (author version)LI, DejianMITACHI, ToshiyukiFUKUDA, FumihikoOKAWARA, MasafumiKUDO, Yutaka519.5第6回環境地盤工学シンポジウム発表論文集115118工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7732022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Sugawara, HirotakeOda, AkinoriSakai, Yosuke2005-11-21T02:32:35Z2005-0400933813http://hdl.handle.net/2115/773Monte Carlo simulation shows that the electron velocity distribution function (EVDF) in CF4 in crossed electric and magnetic fields (ExB fields) has two peaks at low E/B values. The EVDF peaks are formed around a pair of points in velocity space at which electrons are stationary against the acceleration under the E´B fields and scattering by collisions with CF4 molecules. The stationary points appear when the E/B value is lower than the electron speed at which the total electron collision frequency in CF4 takes its minimum.engInstitute of Electrical and Electronics Engineers(c)2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.crossed electric and magnetic fieldselectron velocity distribution functionstationary pointsTwo-peaked velocity distribution function of electrons in carbon tetrafluoride in crossed electric and magnetic fieldsarticle (author version)菅原, 広剛427IEEE transactions on plasma science332 pt.154854910.1109/TPS.2005.845336情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7712022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145井上, 純一2005-11-18T08:53:31Z2005-11-18T08:53:31Zhttp://hdl.handle.net/2115/771既にHUSCAPに登録されている「2004年度グラフ理論講義ノート」の2005年度版です。前年度と比べ、いくつかの演習問題とその解答が新たに加わっております。(誤植も可能な限り直してあります)
今回は講義スライドも利用できるようにしてあります。
当講義の情報は
http://chaosweb.complex.eng.hokudai.ac.jp/j_inoue/
あるいは
http://www005.upp.so-net.ne.jp/j_inoue/index.html
からダウンロード可能です。http://www005.upp.so-net.ne.jp/j_inoue/index.htmlhttp://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/グラフ理論アルゴリズム数え上げ2005年度 グラフ理論講義ノートlearningobjectInoue, Jun-ichi007http://hdl.handle.net/2115/371http://hdl.handle.net/2115/15412http://hdl.handle.net/2115/28239情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7722022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145井上, 純一2005-11-18T09:19:52Z2005-11-18T09:19:52Zhttp://hdl.handle.net/2115/772HUSCAPに登録済みの2004年度版「情報理論講義ノート」の改訂版です。講義スライドも同時に利用できます。
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http://www005.upp.so-net.ne.jp/j_inoue/index.htmlhttp://www005.upp.so-net.ne.jp/j_inoue/index.htmlhttp://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/jpnhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/情報理論エントロピー符号2005年度 情報理論講義ノートlearningobjectInoue, Jun-ichi007http://hdl.handle.net/2115/374情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7742022-11-17T02:08:08Zhdl_2115_20057hdl_2115_148Tsujino, KenjiHofmann, Holger FTakeuchi, ShigekiSasaki, Keiji2005-11-222004-04-16http://hdl.handle.net/2115/7742光子状態は、2つの光子の波動関数が時空間的に完全に重なりあった状態で、単純に光子が2つある状態とは異なります。たとえば、その偏光状態は、単純に考えた場合の2×2=4ではなく、3つに限られます。今回の研究は、その2つの光子状態間のもつれ合いの生成を、単純な「2つのもつれ合い光子対」から区別して検証した世界初の成果です。今後の、多粒子状態間の量子相関の実験的な研究への先駆けになる物と期待されます。A scheme to distinguish entangled two-photon-polarization (ETP) states from two independent entangled one-photon-polarization (EOP) states is proposed. Using this scheme, the experimental generation of ETP by parametric down-conversion is confirmed through the anticorrelations among three orthogonal two-photon-polarization states. The estimated fraction of ETP among the correlated photon pairs is 37% in the present experimental setup.engAmerican Physical Societyhttp://prl.aps.org/(c) 2004 The American Physical SocietyDistinguishing genuine entangled two-photon-polarization states from independently generated pairs of entangled photonsarticle (author version)竹内, 繁樹425Physical Review Letters003190079215153602/1153602/410.1103/PhysRevLett.92.15360215169287電子科学研究所 (Research Institute for Electronic Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7752022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Sugawara, HirotakeSatoh, KohkiSakai, Yosuke2005-11-22T06:26:41Z2001-11-07http://hdl.handle.net/2115/775The electron velocity distribution function (EVDF) of electron swarms in N2 has a constricted part at an electron energy of around 2-3 eV. This feature has been explained by considering the barrier effect of vibrational excitation collisions that prevents the gain of energy by slow electrons. In order to investigate the barrier effect in detail further, we simulated the electron behaviour around the energy range of the barrier. We found that momentum transfer collisions also contribute to the barrier effect in collaboration with vibrational excitation. In addition, an evaluation of the electron flow in velocity space is thought to indicate a factor by which the presence of the barrier effect in N2 is revealed in the EVDF; the depression of the electron interchange across the barrier is not only due to the barrier effect itself but also due to the small electron transfer
associated with the energy loss by electronic excitation.engInstitute of Physicshttp://www.iop.org/EJ/journal/0022-3727/1Copyright (c) 2001 IOP Publishing Ltd.Barrier effect of collisional processes on electron swarms in nitrogenarticle (author version)菅原, 広剛427Journal of Physics D: Applied Physics0022372734213191319610.1088/0022-3727/34/21/312情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7772012-02-06T10:50:00Zhdl_2115_20053hdl_2115_145喜田, 拓也2005-11-252005-09http://hdl.handle.net/2115/777ここに掲載した著作物の利用に関する注意:本著作物の著作権は(社)情報処理学会に帰属します。本著作物は著作権者である情報処理学会の許可のもとに掲載するものです。ご利用に当たっては「著作権法」ならびに「情報処理学会倫理綱領」に従うことをお願いいたします。jpn情報処理学会Arc-annotation 付きテキストに対するパターン照合アルゴリズムPattern Matching Algorithm for Arc-annotated textsarticle (author version)Kida, Takuya007.13情報科学技術フォーラムFIT2005 情報科学技術レターズ42528情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/7802019-04-25T02:44:19Zhdl_2115_680hdl_2115_116松本, 眞2005-11-28T07:49:34Z2001-01-01http://hdl.handle.net/2115/780http://eprints3.math.sci.hokudai.ac.jp/1223/jpnDepartment of Mathematics, Hokkaido University20-xx GROUP THEORY AND GENERALIZATIONS基本群へのガロア作用 : Deligneの混合Tateモチーフに関する予想のl 進版の解決(R.Hainとの共同研究)bulletin (article)411Hokkaido University technical report series in mathematics1348-4338691AA11958768006910.14943/730理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7502019-04-25T02:38:46Zhdl_2115_680hdl_2115_116Giga, Yoshikazu2005-11-28T07:49:38Z1997-01-01http://hdl.handle.net/2115/750http://eprints3.math.sci.hokudai.ac.jp/1232/29 July-31 July,1998engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSProceedings of the 23rd Sapporo Symposium on Partial Differential Equations Sapporobulletin (article)413Hokkaido University technical report series in mathematics1348-4338531AA11958752005310.14943/731理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7362019-04-25T01:42:16Zhdl_2115_680hdl_2115_116Ozawa, TohruGiga, YoshikazuJimbo, ShuichiNakamura, GenTonegawa, YoshihiroTsutaya, Kimitoshi2005-11-28T07:49:40Z2004-01-01http://hdl.handle.net/2115/736http://eprints3.math.sci.hokudai.ac.jp/1217/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSProceedings of the 29th Sapporo Symposium on Partial Differential Equationsbulletin (article)413Hokkaido University technical report series in mathematics1348-4338841AA11958783008410.14943/732理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7402019-05-09T04:43:08Zhdl_2115_680hdl_2115_116神保, 敏弥中路, 貴彦林, 実樹廣2005-11-28T07:49:42Z2003-01-01http://hdl.handle.net/2115/740http://eprints3.math.sci.hokudai.ac.jp/1221/2002年12月24日(火)〜12月27日(金) 関数環・関数空間の合同シンポジューム 会場:北海道大学大学院理学研究科jpnDepartment of Mathematics, Hokkaido University46-xx FUNCTIONAL ANALYSIS第11回関数空間セミナー報告集(関数環・関数空間の合同シンポジューム)bulletin (article)413Hokkaido University technical report series in mathematics1348-4338731AA11958772007310.14943/733理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7442019-04-25T04:15:22Zhdl_2115_680hdl_2115_116中村, 博昭2005-11-28T07:49:44Z2000-01-01http://hdl.handle.net/2115/744http://eprints3.math.sci.hokudai.ac.jp/1226/1999年度北大集中講義レクチャーノートjpnDepartment of Mathematics, Hokkaido University14-xx ALGEBRAIC GEOMETRYガロア・タイヒミュラー群のLEGO理論bulletin (article)414Hokkaido University technical report series in mathematics1348-4338651AA11958764006510.14943/734理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7462019-04-25T03:58:23Zhdl_2115_680hdl_2115_116宮島, 静雄竹尾, 富貴子井上, 純治2005-11-28T07:49:46Z2000-01-01http://hdl.handle.net/2115/746http://eprints3.math.sci.hokudai.ac.jp/1228/1999年12月23日(木)〜12月25日(土)会場:お茶の水女子大学理学部jpnDepartment of Mathematics, Hokkaido University46-xx FUNCTIONAL ANALYSIS第8回関数空間セミナー報告集(Seminar on Function Spaces, 1999)bulletin (article)413Hokkaido University technical report series in mathematics1348-4338621AA11958761006210.14943/735理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7852019-04-25T00:38:13Zhdl_2115_680hdl_2115_116Forbes, Brian2005-11-28T07:49:48Z2005-01-01http://hdl.handle.net/2115/785http://eprints3.math.sci.hokudai.ac.jp/1245/jpnDepartment of Mathematics, Hokkaido University00-xx GENERALThe 7th COE Lecture Series トーリックミラー対称性bulletin (article)410Hokkaido University technical report series in mathematics1348-43381011AA11958800010110.14943/736理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7412019-05-09T04:43:17Zhdl_2115_680hdl_2115_116中路, 貴彦2005-11-28T07:49:50Z2002-01-01http://hdl.handle.net/2115/741http://eprints3.math.sci.hokudai.ac.jp/1222/2001年12月25日(火)〜12月27日(木)会場:北海道大学大学院理学研究科jpnDepartment of Mathematics, Hokkaido University46-xx FUNCTIONAL ANALYSIS第10回関数空間セミナー報告集(Seminar on Function Spaces, 2001)bulletin (article)413Hokkaido University technical report series in mathematics1348-4338701AA11958769007010.14943/737理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7512019-04-25T02:44:16Zhdl_2115_680hdl_2115_116井上, 純治2005-11-28T07:49:52Z1997-01-01http://hdl.handle.net/2115/751http://eprints3.math.sci.hokudai.ac.jp/1233/1997年12月24日(水)〜12月26日(金)於:北海道大学理学部数学教室jpnDepartment of Mathematics, Hokkaido University46-xx FUNCTIONAL ANALYSIS第6回関数空間セミナー報告集(Seminar on Function Spaces, 1997)bulletin (article)413Hokkaido University technical report series in mathematics1348-4338521AA11958751005210.14943/738理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7472019-04-25T00:57:53Zhdl_2115_680hdl_2115_116Giga, YoshikazuOzawa, Tohru2005-11-28T07:49:54Z1999-01-01http://hdl.handle.net/2115/747http://eprints3.math.sci.hokudai.ac.jp/1229/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSProceedings of the 24th Sapporo Symposium on Partial Differential Equations Sapporo,1999bulletin (article)413Hokkaido University technical report series in mathematics1348-4338591AA11958758005910.14943/739理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7432019-04-25T03:12:50Zhdl_2115_680hdl_2115_116宮島, 静雄竹尾, 富貴子井上, 純治2005-11-28T07:49:56Z2001-01-01http://hdl.handle.net/2115/743http://eprints3.math.sci.hokudai.ac.jp/1225/2000年12月24日(日)〜12月26日(火)会場:お茶の水女子大学理学部jpnDepartment of Mathematics, Hokkaido University46-xx FUNCTIONAL ANALYSIS第9回関数空間セミナー報告集(Seminar on Function Spaces, 2000)bulletin (article)413Hokkaido University technical report series in mathematics1348-4338661AA11958765006610.14943/740理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7372019-04-25T00:46:24Zhdl_2115_680hdl_2115_116Kim, DohanOzawa, Tohru2005-11-28T07:49:58Z2004-01-01http://hdl.handle.net/2115/737http://eprints3.math.sci.hokudai.ac.jp/1218/engDepartment of Mathematics, Hokkaido University00-xx GENERALThe 2nd HU and SNU Symposium on Mathematics Abstracts on the occasion of the 7th SNU-HU Joint Symposiumbulletin (article)410Hokkaido University technical report series in mathematics1348-4338831AA11958782008310.14943/741理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7822019-04-25T01:59:48Zhdl_2115_680hdl_2115_116宮島, 静雄井上, 純治2005-11-28T07:50:00Z1997-01-01http://hdl.handle.net/2115/782http://eprints3.math.sci.hokudai.ac.jp/1236/1996年12月24日(火)〜12月26日(木)jpnDepartment of Mathematics, Hokkaido University46-xx FUNCTIONAL ANALYSIS第5回関数空間セミナー報告集bulletin (article)413Hokkaido University technical report series in mathematics1348-4338481AA11958747004810.14943/742理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7382019-04-25T00:52:06Zhdl_2115_680hdl_2115_116Giga, YoshikazuIzumiya, ShuichiDeguchi, Kohichiro2005-11-28T07:50:02Z2004-01-01http://hdl.handle.net/2115/738http://eprints3.math.sci.hokudai.ac.jp/1219/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSMathematical Aspects of Image Processing and Computer Vision 2003bulletin (article)413Hokkaido University technical report series in mathematics1348-4338811AA11958780008110.14943/743理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7482019-04-25T03:58:20Zhdl_2115_680hdl_2115_116井上, 純治2005-11-28T07:50:04Z1999-01-01http://hdl.handle.net/2115/748http://eprints3.math.sci.hokudai.ac.jp/1230/1998年12月24日(木)〜12月26日(土)於:北海道大学理学部数学教室jpnDepartment of Mathematics, Hokkaido University45-xx INTEGRAL EQUATIONS第7回関数空間セミナー報告集bulletin (article)413Hokkaido University technical report series in mathematics1348-4338571AA11958756005710.14943/744理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7832019-04-25T04:15:16Zhdl_2115_680hdl_2115_116河澄, 響矢2005-11-28T07:50:06Z1996-01-01http://hdl.handle.net/2115/783http://eprints3.math.sci.hokudai.ac.jp/1237/1996年10月28日〜11月1日 於:北海道大学理学部数学教室jpnDepartment of Mathematics, Hokkaido University51-xx GEOMETRYリーマン面に関連する位相幾何学 予稿集bulletin (article)414Hokkaido University technical report series in mathematics1348-4338471AA11958746004710.14943/745理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7812019-04-25T00:21:54Zhdl_2115_680hdl_2115_116Ozawa, Tohru2005-11-28T07:50:08Z1997-01-01http://hdl.handle.net/2115/781http://eprints3.math.sci.hokudai.ac.jp/1235/30 July-1 August, 1997engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSProceedings of the 22nd Sapporo Symposium on Partial Differential Equations Sapporobulletin (article)413Hokkaido University technical report series in mathematics1348-4338491AA11958748004910.14943/746理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7492019-04-25T04:04:06Zhdl_2115_680hdl_2115_116河澄, 響矢2005-11-28T07:50:11Z1998-01-01http://hdl.handle.net/2115/749http://eprints3.math.sci.hokudai.ac.jp/1231/1998年9月14日〜9月18日 於:北海道大学理学部数学教室 予稿集jpnDepartment of Mathematics, Hokkaido University51-xx GEOMETRYリーマン面に関連する位相幾何学 予稿集bulletin (article)414Hokkaido University technical report series in mathematics1348-4338541AA11958753005410.14943/747理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7392019-05-09T04:42:47Zhdl_2115_680hdl_2115_116宮島, 静雄竹尾, 富貴子中路, 貴彦2005-11-28T07:50:13Z2004-01-01http://hdl.handle.net/2115/739http://eprints3.math.sci.hokudai.ac.jp/1220/2003年12月24日(水)〜12月26日(金) (会場:お茶の水女子大学理学部)北大21世紀COEプログラム「特異性から見た非線形構造の数学」協賛jpnDepartment of Mathematics, Hokkaido University46-xx FUNCTIONAL ANALYSIS第12回関数空間セミナー報告集(北大21世紀COEプログラム「特異性から見た非線形構造の数学」協賛)bulletin (article)413Hokkaido University technical report series in mathematics1348-4338801AA11958779008010.14943/748理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7422019-04-25T04:09:41Zhdl_2115_680hdl_2115_116Giga, YoshikazuOzawa, Tohru2005-11-28T07:50:15Z2001-01-01http://hdl.handle.net/2115/742http://eprints3.math.sci.hokudai.ac.jp/1224/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSProceedings of the 26th Sapporo Symposium on Partial Differential Equationsbulletin (article)413Hokkaido University technical report series in mathematics1348-4338681AA11958767006810.14943/749理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7842019-04-25T02:17:16Zhdl_2115_680hdl_2115_116Kubo, H.Ozawa, T.Yamauchi, K.2005-11-28T07:50:17Z2005-01-01http://hdl.handle.net/2115/784http://eprints3.math.sci.hokudai.ac.jp/1244/engDepartment of Mathematics, Hokkaido University00-xx GENERALSAPPORO GUEST HOUSE SYMPOSIUM ON MATHEMATICS 20“Nonlinear Wave Equations”bulletin (article)410Hokkaido University technical report series in mathematics1348-43381021AA11958801010210.14943/750理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7522019-04-25T04:15:21Zhdl_2115_680hdl_2115_116河澄, 響矢2005-11-28T07:50:19Z1997-01-01http://hdl.handle.net/2115/752http://eprints3.math.sci.hokudai.ac.jp/1234/1997年9月16日〜9月19日 於:北海道大学理学部数学教室 予稿集jpnDepartment of Mathematics, Hokkaido University51-xx GEOMETRYリーマン面に関連する位相幾何学 予稿集bulletin (article)414Hokkaido University technical report series in mathematics1348-4338511AA11958750005110.14943/751理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/7452019-04-25T04:55:30Zhdl_2115_680hdl_2115_116Giga, YoshikazuOzawa, Tohru2005-11-28T07:50:21Z2000-01-01http://hdl.handle.net/2115/745http://eprints3.math.sci.hokudai.ac.jp/1227/engDepartment of Mathematics, Hokkaido University35-xx PARTIAL DIFFERENTIAL EQUATIONSProceedings of the 25th Sapporo Symposium on Partial Differential Equationsbulletin (article)413Hokkaido University technical report series in mathematics1348-4338641AA11958763006410.14943/752理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/8262022-11-17T02:08:08Zhdl_2115_20049hdl_2115_141川島, 敏彦芳村, 康男鈴木, 四郎大本, 耕司2005-11-30T01:36:10Z2003http://hdl.handle.net/2115/826Fishing boats have several restrictions on their machinery arrangements and space utility on deck. For the improvement of the stability and the deck utility, the fitting of a bulge on sidewall of the vessel is one of the solutions. However, the bulge generally makes a significant increase of hull resistance and loss of speed. At the principal design stage of the elongation of the fisheries research ship “Ushio-maru”, the University of Hokkaido, the authors examined the suitable form of the bulge to improve the stability without increase of the hull resistance. For this purpose, systematic calculations of wave making resistance by Rankine’s source method and model experiments using a circulating water channel have been conducted. In this process, it has been found that the optimized bulge form can decrease the hull resistance. In this paper, the authors discuss about the mechanism of the hull resistance decrease by a bulge based on the view point of flow field around hull and propose the suitable method to design the bulge form. This technique has been applied to the actual elongation design of “Ushio-maru”, and then it has been confirmed by the experimental model tests as well as the full scale trials.jpn日本造船学会バルジによる漁船の船型改良についてImprovement of Hull Form of Fishing Vessel by Suitable Bulgearticle (author version)Kawashima, ToshihikoYoshimura, YasuoSuzuki, ShiroOomoto, Kouji665日本造船学会論文集0514849919319水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8272022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Kida, TakuyaArimura, Hiroki2005-11-30T01:36:12Z2004-10http://hdl.handle.net/2115/827In this paper, we study the pattern matching problem with taxonomic information (PMTX, for short), where taxonomy is a partially ordered set of letters describing an IS-A hierarchy. We present an efficient algorithm for PMTX that runs in O(mn/w) time with O(m+mh/w) preprocess and O(mσ/w) extra space, where h, m, t, σ, and w are the size of the taxonomic information H, the length of the pattern P ∈ Σ∗, the length of the text T ∈ Σ∗, the cardinality of the sorted alphabet Σ, and the computer word length, respectively. If the pattern length m is less than w, it runs in O(n) time, O(m + h) preprocess, and O(σ) space, and works very fast in practice. We also discuss various improvements of the algorithms for real world applications.engAsia Information Retrieval Symposiumstring matchingtaxonomybit-parallelismAlgorithmsPattern Matching with Taxonomic Informationarticle (author version)喜田, 拓也007.13Asia Information Retrieval Symposium (AIRS2004)265268情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8292022-11-17T02:08:08Zhdl_2115_20042hdl_2115_136Akhter, RahenaHassan, Nur Mohammad MonsurNameki, HayatoNakamura, KimiyaHonda, OkahitoMorita, Manabu2005-11-30T07:32:30Z2004-08http://hdl.handle.net/2115/829The definitive version is available at www.blackwell-synergy.comThe prevalences of signs and symptoms of temporomandibular disorder (TMD) in Bangladeshi adolescents and their associations with intake of various hard food items were investigated. A group of 1,200 randomly selected high school students aged 12-17 years from three communities (rural, semi-urban and urban) completed a questionnaire on dietary habits and presence of TMD symptoms and were examined clinically. In bivariate analysis, no significant relationship was observed between TMD symptoms and eating of hard foods. However, in logistic regression analysis, clicking showed a significant correlation with consumption of hard vegetable and fruits more than 3 times per week (P<0.05). A statistically significant correlation was also observed between consumption of all hard food items (at least one item in each of the 4 categories of hard food) more than 12 times per week and pain in the temporomandibular joint (TMJ) (P<0.05). A positive association was found between pain in the TMJ and older age (15-17 years) (P<0.001). The prevalence of pain in the TMJ was significantly higher in males (P<0.01). Prevalences of clicking and pain in the TMJ were significantly higher in subjects living in a rural area than in subjects living in an urban area (P<0.01 and P<0.01, respectively). Subjects having one or more decayed, missing and filled teeth (DMFT) showed significantly higher prevalences of clicking (P<0.01) and restricted mouth opening (P<0.01). The results suggest that prevalence of TMD symptoms are related to prolonged consumption of hard food items.engBlackwell Publishingdietary habitssymptoms of TMDadolescentAssociation of dietary habits with symptoms of temporomandibular disorders in Bangladeshi adolescentsarticle (author version)497Journal of Oral Rehabilitation0305182X31874675310.1111/j.1365-2842.2004.01420.x15265209歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8282022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145井上, 純一2005-11-30T05:17:27Z2005-11-30T05:17:27Zhttp://hdl.handle.net/2115/828とりあげた各トピックスに関する最新情報は著者のホームページを参照ください。2005年度版大学院講義「混沌系工学特論」の講義ノートです。2004年度版とは異なるトピックス : (1)画像復元(2)誤り訂正符号(3)CDMA(スペクトル拡散通信)(4)ゲーム理論のそれぞれを扱っています。2004年度版と合わせて読み進めて頂くと良いと思います。なお、それぞれのトピックスに関するの最新情報は関連URLからたどれる著者のホームページを参照願います。http://www005.upp.so-net.ne.jp/j_inoue/index.htmlhttp://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/jpnhttp://www005.upp.so-net.ne.jp/j_inoue/index.htmlhttp://creativecommons.org/licenses/by-nc-sa/2.1/jp/情報統計力学画像/符号/CDMAゲーム理論2005年度 混沌系工学特論講義ノートlearningobjectInoue, Jun-ichi007リポジトリに登録済みの2004年度混沌系工学特論講義ノートの2005年度版です。今年度は全7回構成となっています。http://hdl.handle.net/2115/370http://hdl.handle.net/2115/32315http://hdl.handle.net/2115/57013情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8302022-11-17T02:08:08Zhdl_2115_20042hdl_2115_136Akhter, RahenaHannan, MAOkhubo, R.Morita, M.2005-12-01T01:54:01Z2005-08-170949-2321http://hdl.handle.net/2115/830Objectives: Several studies conducted in Western countries have shown significant associations between stress factors and periodontal disease. However, there have been only a few studies conducted in Asian countries. The present study was designed to identify possible relationship between stress and periodontal disease in residents of a rural area in Japan.
Material and Methods: Data were collected from 1,089 adults with at least six natural teeth in a typical farming district of Japan. Subjects were asked to complete a questionnaire on daily stresses in various aspects of life. Data on gender, occupation, smoking, alcohol drinking habits, dental health behavior and systemic disease status were obtained from the questionnaires. Periodontal disease status was assessed using clinical attachment loss (CAL), and the subjects were dichotomized according to mean CAL <1.5 mm (control group) and ≥1.5 mm (diseased group). Logistic regression was applied to assess the associations between stress and other factors with periodontal disease, and odds ratios (ORs) as well as 95% confidence intervals were calculated. Results: In bivariate analysis, significant relationships were found between periodontal disease and stress within 1 month (P<0.001), job stress (P<0.001), self-health-related stress (P<0.001) and family health-related stress (P<0.01). Logistic regression analysis revealed that subjects who felt job stress (OR=1.71, P<0.05) and those who felt stress due to self health (OR=1.72, P<0.05) were more prone to have periodontal disease than were those who never or only rarely felt such stress. Significant correlations were also found between periodontal disease and smoking habit, frequency of dental clinic visits and hyperlipidemia (OR=1.8, P<0.05, OR=2.0, P<0.001, OR=2.1, P<0.05, respectively).
Conclusion: The results suggest that stress related to self health and job might be potential risk indicators for development of periodontal diseases. Intervention measures including stress reduction may provide adjunctive approaches for preventing and treating periodontal disease.engI. Holzapfel Publishersself health-related stressjob stresshyperlipidemiaclinical attachment levelperiodontal diseaseRelationship between stress factor and periodontal disease in a rural area population in Japanarticle (author version)497.2European journal of medical research09492321108352357歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/154202022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Inoue, Jun-ichi2006-11-08T02:41:43Z2005-11-11http://hdl.handle.net/2115/15420Springerから2005年度に出版された"Quantum Annealing and Related Optimization Methods"のうちの著者が担当した1章です。量子力学的揺らぎを用いた最適化手法であるQuantum Annealingとその関連手法を確率的情報処理に適用した場合に得られたいくつかの結果について紹介・解説しています。この研究課題のその後の進捗状況については著者のホームページを参照願います。Recent results obtained by the author about probabilistic information processing using quantum-mechanical fluctuation are reported. This volume was published as a part of proceedings of the workshop "quantum annealing and the other optimization methods" in Kolkata 2005.http://www005.upp.so-net.ne.jp/j_inoue/index.htmlhttp://chaosweb.complex.eng.hokudai.ac.jp/~j_inoue/engSpringer関連情報はSpringerのホームページ、著者のホームページを参照願います。Lecture Notes in Physics;Vol. 679http://www.springerlink.comQuantum AnnealingSpin GlassesOptimization MethodsQuantum Spin Glasses, Quantum Annealing and Probabilistic Information Processingarticle (author version)547Quantum Annealing and Other Optimization Methods (Lecture Notes in Physics 679/2005)1616-636125929710.1007/11526216_10978-3-540-27987-7情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8332022-11-17T02:08:08Zhdl_2115_20038hdl_2115_123濱田, 康行中村, 宙正2005-12-06T23:48:34Z2005-1102877929http://hdl.handle.net/2115/833本稿は証券アナリストジャーナル誌に掲載された論文から同誌の許可を得て,転載するものである。『証券アナリストジャーナル』第43巻第11号の特集論文(特集2「証券取引所と市場間競争」)に該当する。地方経済の苦境が続いている中で、わが国の地方証券取引所の現状と問題点について考察する。通信技術の飛躍的発達もあって証券取引所の東京一極集中が進んでおり、各地方証券取引所は市場間競争にさらされている。大阪、福岡、名古屋、札幌の順に、ジュニアマーケットの活性化策などを中心に見てみる。最後に、大きな意味での金融構造の変化の中で、理論的に見て地方証券取引所の存在意義が見いだせるかどうかを検討する。jpn(社)日本証券アナリスト協会直接金融時代と地方証券市場の役割Role of local securities exchange markets in an era of direct financingarticle (author version)Hamada, YasuyukiNakamura, Hiromasa338.16証券アナリストジャーナル028779294311129140経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8322022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Sugawara, HirotakeIshigaki, TakuyaHirochi, YuukiSakai, Yosuke2005-12-062004-11-10http://hdl.handle.net/2115/832It has been predicted that near-threshold ionization (NTI) in a gaseous dielectric inhibits the development of electron avalanche when the gaseous dielectric has a sufficient capability for
low-energy electron attachment. The NTI leaves little energy for the primary and secondary electrons involved in the ionization; thus, both electrons can be captured by dielectric gas molecules without further ionization. A computational estimation indicates that this process can occur in SF6.engThe Institute of Pure and Applied Physicsgaseous dielectricelectron attachmentionizationthresholdelectron avalanchesulfur hexafluorideEffect of near-threshold ionization on electron attachment in gaseous dielectricsarticle (author version)菅原, 広剛427Japanese Journal of Applied Physics002149224311A7705770610.1143/JJAP.43.7705情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8342022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Tanaka, MotoyoshiMullauer, LeonhardOgiso, YoshifumiFujita, HisakazuMoriya, ShingoFuruuchi, KeijiHarabayashi, TohruShinohara, NobuoKoyanagi, TomohikoKuzumaki, Noboru2005-12-09T02:25:27Z1995-08-01http://cancerres.aacrjournals.org/http://hdl.handle.net/2115/834Human transitional cell carcinomas of the bladder frequently reveal chromosomal abnormalities that span a range between chromosome 9pl2 and 9qter, even at early stages of bladder carcinogenesis. Because the gene that encodes an actin-regulatory protein, gelsolin, is localized in chromosome 9q33, we examined the expression of gelsolin in a number of human bladder cancer cell lines and tissues. In all 6 cell lines and in 14 of the 18 tumor tissues (77.8%), gelsolin expression was undetectable or extremely low in comparison with its expression in normal bladder epithelial cells. Furthemore, upon the introduction of the exogenous human or mouse authentic gelsolin cDNA into a human bladder cancer cell line, UMUC-2, gelsolin transfectants of UMUC-2 greatly reduced the colony-forming ability and the tumorigenicity in vivo. These results suggest that gelsolin plays a key role as a tumor suppressor in human urinary bladder carcinogenesis.engAmerican Association for Cancer ResearchCopyright (c) 1995 by American Association for Cancer ResearchGelsolin: a candidate for suppressor of human bladder cancerarticle (author version)葛巻, 暹491.65Cancer Research00085472551532283232遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8392022-11-17T02:08:08Zhdl_2115_20032hdl_2115_122櫻井, 義秀2005-12-13T08:51:46Z2004-1009128816http://hdl.handle.net/2115/839本稿では、東北タイの開発僧と呼ばれる僧侶の社会開発実践を紹介する。その際、宗教が社会制度や社会運動として、社会形成に貢献する条件を一般的な開発論と、タイの社会史的コンテキストの中で考察する。一章では20世紀後半のグローバリゼーションと反グローバリゼーションの運動をテロリズムの背景を探るという形で、社会階層論から説明を試みる。二章において、宗教が社会形成に果たす機能を考察するために、社会開発論における文化的な社会資本論について言及し、宗教制度が社会資本になりうる可能性を論じる。三章は、タイの上座仏教全体について説明し、開発僧に関わる先行研究の議論を紹介した上で、本稿のハイライトである開発僧の事例を筆者の調査研究の知見から説明する。jpn北海道印度哲学仏教学会宗教と社会開発 : 東北タイの開発僧article (author version)Sakurai, Yoshihide161.3印度哲学仏教学0912-881619245275文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8402022-11-17T02:08:08Zhdl_2115_20048hdl_2115_140藤井, 啓石川, 朋子渡邊, 有希子齋藤, 幸子中川, 恵美子小林, 由美2005-12-16T07:35:51Z2005-03-31http://hdl.handle.net/2115/840138 harbor seals (Phoca vitulina stejnegeri), 3 larga seals (P. Largha), 1 ringed seal (P. hispida) and 3 undiscriminated seal were measured from 1990 to 2004 in Erimo Cape, Japan. They were captured with dip net or caught in fixed salmon net. Living seals were released after tagging. 4 of 10 pups, which were tagged on Jun in 2004, were caught in fixed salmon net in that autumn. By-catch may be one of serious problem for pups. Sexual dimorphism of harbor seal pups was not recognized statistically. Mean length of one-month-old harbor seal pups in Erimo (male: 96.6 cm, female: 93.3 cm) were shorter than the mean length of harbor seal (P. v. s.) pups in Nemuro, Japan. In autumn, mean length of harbor seal pups in Erimo also shorter than that in Nemro.jpnえりも町郷土資料館・水産の館ゼニガタアザラシPhoca vitulina stejnegeri標識計測襟裳岬襟裳岬におけるゼニガタアザラシ(Phoca vitulina stejnegeri)の標識と計測Tagging and measuring of Harbor seals (Phoca vitulina stejnegeri) in Erimo Cape, Japanarticle (author version)Fujii, KIshikawa, TWatanabe, YSaito, SNakagawa, EKobayashi, Y480えりも研究 : えりも町郷土資料館調査研究報告13490907218AA11998670獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8482022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Sahara, KenKawamura, Naoko2005-12-19T05:53:26Z2002-02http://hdl.handle.net/2115/848Silkworm males produce dimorphic sperm, nucleate eupyrene sperm and anucleate apyrene sperm. Apyrene sperm have been speculated to have an assisting role in fertilisation. However, the coexistence of eupyrene and apyrene sperm in the testis and female reproductive organs has made it difficult to define the role of apyrene sperm. Polyploid males are highly sterile. Microscopic observation revealed that the elimination of eupyrene nuclei by peristaltic squeezing caused the sterility of polyploids. Heatshock applied to pupae of Daizo males (DH) also induced high sterility due to the lack of normal apyrene sperm. When eupyrene sperm of sterile DH males and apyrene sperm of sterile polyploid males were mixed by double copulation, a remarkable increase in fertility of the double-mated females was observed. This finding strongly suggests that the apyrene sperm are indispensable in fertilisation of the silkworm and that polyploid apyrene sperm function as a substitute for diploid sperm. We established an experimental system in which we can separate the two types of sperm for further studies on their functions without chemical and/or mechanical treatments.engCambridge University PressCopyright (c) 2002 Cambridge University PressApyrene spermDouble copulationEupyrene spermPolyploid silkwormTubulinDouble copulation of a female with sterile diploid and polyploid males recovers fertility in Bombyx moriarticle佐原, 健633.2Zygote0967-1994101232910.1017/S0967199402002046農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8492022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Sahara, KenKawamura, NaokoYamashiki, NaokoSaitoh, Hiroshi2005-12-19T05:56:12Z2001-05http://hdl.handle.net/2115/849Silkworm (Lepidoptera) males produce dimorphic sperm: nucleate eupyrene sperm and anucleate apyrene sperm. The eupyrene sperm are ordinary sperm to fertilise the eggs, while the function of apyrene sperm remains uncertain. After meiosis, 256 sperm cells are enclosed by a layer of cyst cells, forming a sperm bundle. We have previously documented that the nucleus of eupyrene sperm anchors to the head cyst cell, which locates at the anterior apex of the bundle, by an acrosome tubule-basal body assembly. Neither the basal body attachment to the nucleus nor the acrosome is seen in apyrene sperm, and the nuclei remain in the middle region of the bundle. Peristaltic squeezing starts from the anterior of the bundles in both types of sperm, and cytoplasmic debris of the eupyrene sperm, and both the nuclei and debris of apyrene sperm, are eliminated at the final stage of spermatogenesis. Since the irregularity of meiotic division in apyrene sperm is known, we used triploid silkworm males that show irregular meiotic division even in eupyrene spermatocytes and are highly sterile. The irregular nuclei of the triploid are discarded by the peristaltic squeezing just as those of the apyrene sperm. Transmission electron microscopic observations disclose the abnormality in the acrosome tubule and in the connection to the basal body. The peristaltic squeezing of sperm bundles in the silkworm appears to be the final control mechanism to eliminate irregular nuclei before they enter female reproductive organs.engCambridge University PressCopyright (c) 2001 Cambridge University PressApyrene spermPeristaltic squeezingSpermatogenesisTriploid silkwormSignificance of peristaltic squeezing of sperm bundles in the silkworm, Bombyx mori: elimination of irregular eupyrene sperm nuclei of the triploidarticle佐原, 健633.2Zygote0967-19949215916610.1017/S0967199401001174農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8642022-11-17T02:08:08Zhdl_2115_20070hdl_2115_157Shinozuka, H.Hisano, H.Ponting, R.C.Cogan, N.O.I.Jones, E.S.Forster, J.W.Yamada, T.2006-01-06T08:30:37Z2005-12http://hdl.handle.net/2115/864The α-subunit of the casein protein kinase CK2 has been implicated in both light-regulated and circadian rhythm-controlled plant gene expression, including control of the flowering time. Two putative CK2α genes of perennial ryegrass (Lolium perenne L.) have been obtained from a cDNA library constructed with mRNA isolated from cold-acclimated crown tissue. The genomic organisation of the two genes was determined by Southern hybridisation analysis. Primer designs to the Lpck2a-1 and Lpck2a-2 cDNA sequences permitted the amplification of genomic products containing large intron sequences. Amplicon sequence analysis detected single nucleotide polymorphisms (SNPs) within the p150/112 reference mapping population. Validated SNPs, within diagnostic restriction enzyme sites, were used to design cleaved amplified polymorphic sequence (CAPS) assays. The Lpck2a-1 CAPS marker was assigned to perennial ryegrass linkage group (LG) 4 and the Lpck2a-2 CAPS marker was assigned to LG2. The location of the Lpck2a-1 gene locus supports the previous conclusion of conserved synteny between perennial ryegrass LG4, the Triticeae homoeologous group 5L chromosomes and the corresponding segment of rice chromosome 3. Allelic variation at the Lpck2a-1 and Lpck2a-2 gene loci was correlated with phenotypic variation for heading date and winter survival, respectively. SNP polymorphism may be used for the further study of the role of CK2α genes in the initiation of reproductive development and winter hardiness in grasses.engSpringer-Verlag GmbHThe original publication is available at www.springerlink.comPerennial ryegrassCasein kinase 2 αSingle nucleotide polymorphismCleaved amplified polymorphic sequenceHeading dateConserved syntenyMolecular cloning and genetic mapping of perennial ryegrass casein protein kinase 2 α-subunit genesarticle (author version)山田, 敏彦467TAG Theoretical and Applied Genetics0040-5752112116717710.1007/s00122-005-0119-816240106北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8902022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Sahara, KenTakemura, Yoko2006-01-12T08:49:28Z2003-05http://hdl.handle.net/2115/890The silkworm, Bombyx mori, has a dimorphic sperm system. The eupyrene sperm is the sperm to fertilize eggs and the apyrene sperm plays a crucial role for assisting fertilization. Heat-treated (331C for 96h) Daizo (DH) males, one of the strains in the silkworm, produce only eupyrene sperm, while in triploid males only apyrene sperm are functional. Though both types of males are found to be sterile, double copulation of the two males with a single female greatly increases fertility. Here we examined the fertilizing ability of eupyrene and apyrene sperm by means of an artificial insemination technique previously established in B. mori. Neither the eupyrene sperm collected from DH males, nor the apyrene sperm from triploid males have the ability to fertilize eggs. Artificial insemination with the mixture of eupyrene and apyrene sperm leveled up the frequency of fertilized eggs to more than 80%. When cryopreserved DH sperm (eupyrene sperm) were subjected to the same experiment, more than 95% fertilized eggs were obtained. These results confirmed that apyrene sperm play an important and indispensable role in fertilization in B. mori. Separate collection of functional eupyrene sperm and functional apyrene sperm and success of fertilization by means of the artificial insemination technique are applicable for further studies to elucidate the function of apyrene sperm. J. Exp. Zool. 297A:196–200, 2003.engWiley-Liss, Inc.Copyright (c) 2003 John Wiley & Sons, Inc.silkwormlepidopteraspermatozoabundlesfemalepyralidaemothApplication of artificial insemination technique to eupyrene and/or apyrene sperm in Bombyx moriarticle (author version)佐原, 健633Journal of Experimental Zoology Part A: Comparative Experimental Biology0022-104X297A219620010.1002/jez.a.10250Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8882022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Yoshido, AtsuoMarec, FrantišekSahara, Ken2006-01-12T08:48:16Z2005-07-14http://hdl.handle.net/2115/888Abstract We have developed a simple method to resolve the sex chromosome constitution in females of Lepidoptera by using a combination of genomic in situ hybridization (GISH) and fluorescence in situ hybridization with (TTAGG)n telomeric probe (telomere-FISH). In pachytene configurations of sex chromosomes, GISH differentiated W heterochromatin and telomere-FISH detected the chromosome ends.With this method we showed that Antheraea yamamai has a standard system with a fully differentiated W–Z sex chromosome pair. In Orgyia antiqua, we confirmed the presence of neo-W and neo-Z chromosomes, which most probably originated by fusion of the ancestral W and Z with an autosome pair. In contrast to earlier data, Orgyia thyellina females displayed a neo-ZW1W2 sex chromosome constitution. A neo-WZ1Z2 trivalent was found in females of Samia cynthia subsp. indet., originating from a population in Nagano, Japan. Whereas another subspecies collected in Sapporo, Japan, and determined as S. cynthia walkeri, showed a neo-W/neo-Z bivalent similar to O. antiqua, and the subspecies S. cynthia ricini showed a Z univalent (a Z/ZZ system). The combination of GISH and telomere-FISH enabled us to acquire not only reliable information about sex chromosome constitution but also an insight into sex chromosome evolution in Lepidoptera.engThe original publication is available at www.springerlink.comy-chromosomesbombyx-morievolutioninsectsdifferentiationchromatinkaryotypesequencefemalessystemResolution of sex chromosome constitution by genomic in situ hybridization and fluorescence in situ hybridization with (TTAGG) n telomeric probe in some species of Lepidopteraarticle (author version)佐原, 健467Chromosoma0009-5915114319320210.1007/s00412-005-0013-916021495Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8892022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Sahara, KenKawamura, Naoko2006-01-12T08:48:50Z2003http://hdl.handle.net/2115/889Two types of sperm are produced in the silkworm, Bombyx mori. Nucleate eupyrene sperm is an ordinary sperm that contributes to fertilization, while anucleate apyrene sperm is considered to play important roles in assisting eupyrene sperm. At the very late stage of spermatogenesis, a phenomenon called peristaltic squeezing occurs in both types of sperm, whereby cytoplasm of the eupyrene and nuclei of the apyrene sperm are discarded from the posterior end, forming matured sperm. In this study, rhodamine-phalloidin staining for actin was applied to sperm bundles. Before the start of peristaltic squeezing, actin filament networks are spread on the cyst cells and constrictions by the networks appear in several places of the bundles. Actin particles, which are later recognized as circlets, are localized within the bundles. Squeezing action by the networks occurs from the anterior region and transfers toward the posterior, eliminating cytoplasm together with circlets from the posterior end. It seems that actin filaments contribute to the peristaltic squeezing of the sperm bundles in Bombyx mori. J. Morphol. 259:1-6, 2004.engWiley-Liss, Inc.http://www.interscience.wiley.com/actin eupyrene spermLepidopteraperistaltic squeezingphalloidinapyrene spermRoles of actin networks in peristaltic squeezing of sperm bundles in Bombyx moriarticle (author version)佐原, 健633Journal of Morphology0362-252525911610.1002/jmor.1016814666520Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8932022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Sahara, KenYoshido, AtsuoKawamura, NaokoOhnuma, AkioAbe, HiroakiMita, KazueiOshiki, ToshikazuShimada, ToruAsano, Shin-ichiroBando, HisanoriYasukochi, Yuji2006-01-12T08:55:48Z2003-06-24http://hdl.handle.net/2115/893We isolated four W chromosome-derived bacterial artificial chromosome (W-BAC) clones from Bombyx mori BAC libraries by the polymerase chain reaction and used them as probes for fluorescence in situ hybridization (FISH) on chromosome preparations from B. mori females. All four W-BAC probes surprisingly highlighted the whole wild-type W sex chromosome and also identified the entire original W-chromosomal region in W chromosome-autosome translocation mutants. This is the first successful identification of a single chromosome by means of BAC-FISH in species with holokinetic chromosomes. Genomic in situ hybridization (GISH) by using female-derived genomic probes highlighted the W chromosome in a similar chromosome-painting manner. Besides the W, hybridization signals of W-BAC probes also occurred in telomeric and/or subtelomeric regions of the autosomes. These signals coincided well with those of female genomic probes except one additional GISH signal that was observed in a large heterochromatin block of one autosome pair. Our results support the opinion that the B. mori W chromosome accumulated transposable elements and other repetitive sequences that also occur, but scattered, elsewhere in the respective genome. Edited by: E.R. SchmidtengSpringer-Verlag GmbHThe original publication is available at www.springerlink.comcomparative genomic hybridizationephestia-kuehniella lapidopterasex-chromosomesdomesticated silkwormtranslocation strainslinkage mapdnachromatininsectsmothW-derived BAC probes as a new tool for identification of the W chromosome and its aberrations in Bombyx moriarticle (author version)佐原, 健633Chromosoma0009-59151121485510.1007/s00412-003-0245-51432-088612827381Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8912022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Sahara, KenMarec, FrantišekEickhoff, UlrikeTraut, Walther2006-01-12T08:50:15Z2003-04http://hdl.handle.net/2115/891Comparative genomic hybridization (CGH) with a probe mixture of differently labeled genomic DNA from females and males highlighted the W chromosomes in mitotic plates and the W chromatin in polyploid interphase nuclei of the silkworm Bombyx mori, the flour moth Ephestia kuehniella, and the wax moth Galleria mellonella. The overproportionate fluorescence signal indicated an accumulation of repetitive sequences in the respective W chromosomes. Measurements of the fluorescence signals revealed two components, one that is present also in male DNA (non-W chromosomes) and another one that is present only in or preponderantly in female DNA (W chromosomes). While the W chromosomes of E. kuehniella and G. mellonella had both components, that of B. mori appeared to lack the latter component. Our results show that CGH can be applied to obtain a first estimate of the sequence composition of sex chromosomes in species from which otherwise little is known on the molecular level.http://pubs.nrc-cnrc.gc.caengNational Research Council CanadaCopyright (c) 2003 National Research Council of CanadaLepidopteracomparative genomic hybridizationmolecular evolutionW chromosomeMoth sex chromatin probed by comparative genomic hybridization (CGH)article佐原, 健486.8Genome1480-3321462339342農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8922022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Kawamura, NaokoSahara, Ken2006-01-12T08:50:49Z2002http://hdl.handle.net/2115/892Bombyx spermatogonia are bipotential, producing nucleate eupyrene sperm and anucleate apyrene sperm. An in vitro cultivation of spermatocysts of Bombyx mori from spermatocytes to matured sperm was established. The present experiment made clear that: (i) spermatocysts must be isolated; (ii) constant shaking at 45 r.p.m. was necessary; and (iii) the addition of Bombyx hemolymph (BH) was indispensable for successful cultivation. In the absence of BH, spermatogenesis proceeded normally for 2 or 3 days and, thereafter, spermatocytes and sperm bundles began to degenerate. The best results for normal eupyrene spermatogenesis were obtained when culture medium containing BH of the corresponding stage was used in every exchange of the medium at 72 h intervals. None or only a small number of apyrene sperm bundles was produced by this culture system when spermatocysts from larval testes were used, although eupyrene spermatogenesis proceeded normally to form matured, or squeezed, sperm bundles.engBlackwell Publishing, Inc.http://www.blackwellpublishing.com/Copyright (c) 2002, Blackwell Publishingapyrene spermBombyx hemolympheupyrene spermin vitro cultivationsilkwormIn vitro cultivation of spermatocysts to matured sperm in the silkworm Bombyx moriarticle (author version)佐原, 健633Development Growth & Differentiation0012-159244427328010.1046/j.1440-169X.2002.00641.xAccepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8732022-03-30T06:02:19Zhdl_2115_871hdl_2115_865hdl_2115_140OKANO, ShinyaASANO, AtsushiSASAKI, NobuyaKON, YasuhiroWATANABE, TomomasaAGUI, Takashi2006-01-12T03:47:34Z2005-02http://hdl.handle.net/2115/873engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityJsrLfngUncx4.1Examination of the Lunatic fringe and Uncx4.1 expression by whole-mount in situ hybridization in the embryo of the CKH-Jsr(jumbled spine and ribs)mousebulletin (article)649Japanese Journal of Veterinary Research0047-1917524145149AA0069128X0110.14943/jjvr.52.4.145Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 52, Number 4
oai:eprints.lib.hokudai.ac.jp:2115/8942022-11-17T02:08:08Zhdl_2115_20051hdl_2115_144Ikeda, M.Colony, R.Ikeda, T.Yamaguchi, H.2006-01-12T09:01:17Z2005-11-15http://hdl.handle.net/2115/894An edited version of this paper was published by AGU. Copyright 2005, American Geophysical Union, Geophysical Research Letters, Issue 21The recent distribution of Russian hydrochemical data collected from the Arctic Basin provides useful information on ocean interior variabilities. Among various chemical components, silicate is the most valuable for showing the boundary between the silicate-rich Pacific Water and the opposite Atlantic Water. Here, it is assumed that the silicate distribution receives minor influence from seasonal biological productivity and Siberian Rivers outflow. It shows a clear maximum around 100-m depth in the Canada Basin. The vertical gradient below 100 m provides information on the vertical motion of the upper boundary of the Atlantic Water at a decadal time scale: i.e., the boundary shifts upward (downward), as realized by the silicate reduction (increase) at a fixed depth, responding to a more intense (weaker) Polar Vortex or the positive (negative) phase of the Arctic Oscillation. This valuable hydrochemical data set has provided a tool for verifying Arctic Ocean models with decadal responses to atmospheric variabilities.engAmerican Geophysical Unionsea-iceoscillationwatersDecadal variability in the Arctic Ocean shown in hydrochemical dataarticle (author version)池田, 元美519Geophysical Research Letters0094-82763221L2160510.1029/2005GL023908環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8952022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Gao, Yong-GuiYao, MinYong, ZhouTanaka, Isao2006-01-12T09:04:10Z2005-10-21http://hdl.handle.net/2115/895No abstractengWiley-Liss, Inc.http://www.interscience.wiley.com/Copyright © 2005 Wiley-Liss, Inc.adenosylmetionine-dependentmethyltransferaseproteinmethylationdiffractiondomainfoldCrystal structure of the putative RNA methyltransferase PH1948 from Pyrococcus horikoshii, in complex with the copurified S-adenosyl-L-homocysteinearticle (author version)姚, 閔464Proteins: Structure, Function, and Bioinformatics0887-35856141141114510.1002/prot.2067816245322理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8962022-11-17T02:08:08Zhdl_2115_20070hdl_2115_157Shibata, HideakiHiura, TsutomTanaka, YumikoTakagi, KentaroKoike, Takayoshi2006-01-12T09:05:58Z2005-03-02http://hdl.handle.net/2115/896Quantification of annual carbon sequestration is very important in order to assess the function of forest ecosystems in combatting global climate change and the ecosystem responses to those changes. Annual cycling and budget of carbon in a forested basin was investigated to quantify the carbon sequestration of a cool-temperate deciduous forest ecosystem in the Horonai stream basin, Tomakomai Experimental Forest, northern Japan. Net ecosystem exchange, soil respiration, biomass increment, litterfall, soil-solution chemistry, and stream export were observed in the basin from 1999–2001 as a part of IGBP-TEMA project. We found that 258 g C m–2 year–1 was sequestered annually as net ecosystem exchange (NEE) in the forested basin. Discharge of carbon to the stream was 4 g C m–2 year–1 (about 2% of NEE) and consisted mainly of dissolved inorganic carbon (DIC). About 43% of net ecosystem productivity (NEP) was retained in the vegetation, while about 57% of NEP was sequestered in soil, suggesting that the movement of sequestered carbon from aboveground to belowground vegetation was an important process for net carbon accumulation in soil. The derived organic carbon from aboveground vegetation that moved to the soil mainly accumulated in the solid phase of the soil, with the result that the export of dissolved organic carbon to the stream was smaller than that of dissolved inorganic carbon. Our results indicated that the aboveground and belowground interaction of carbon fluxes was an important process for determining the rate and retention time of the carbon sequestration in a cool-temperate deciduous forest ecosystem in the southwestern part of Hokkaido, northern Japan.engSpringer-Verlag Tokyo Inc.The original publication is available at www.springerlink.comCarbon biogeochemistryClimate changeEddy fluxForest ecosystemNet ecosystem productivityCarbon cycling and budget in a forested basin of southwestern Hokkaido, northern Japanarticle (author version)柴田, 英昭653Ecological Research0912-381420332533110.1007/s11284-005-0048-71440-1703北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8862009-09-15T03:23:47Zhdl_2115_20040hdl_2115_121表山, 和樹井上, 勝一サラウディン, アラディン2006-01-12T08:42:13Z2002http://hdl.handle.net/2115/886http://www.meteo-intergate.com/index.htmljpn日本サイトメトリー学会癌細胞における細胞増殖抑制とアポトーシスCell Growth Inhibition and Apoptosis in Cancer Cellsarticle (author version)Omoteyama, KazukiInoue, ShoichiSalah-eldin, Alaa-eldin491.65CYTOMETRY RESEARCH091669201218391医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8742022-03-30T06:02:19Zhdl_2115_871hdl_2115_865hdl_2115_140ODONTSETSEG, NamsraijavMWEENE, Aaron S.KIDA, Hiroshi2006-01-12T04:03:54Z2005-02http://hdl.handle.net/2115/874engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityInfectionsLivestockMongoliaSurveillanceViral and bacterial diseases in livestock in Mongoliabulletin (article)649Japanese Journal of Veterinary Research0047-1917524151162AA0069128X0210.14943/jjvr.52.4.151Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 52, Number 4
oai:eprints.lib.hokudai.ac.jp:2115/8752022-03-30T06:02:19Zhdl_2115_871hdl_2115_865hdl_2115_140El. Bohi, Khlood M.Sabik, LailaMuzandu, KaampweShaban, ZeinSoliman, MohamedIshizuka, MayumiKazusaka, AkioFujita, Shoichi2006-01-12T04:13:46Z2005-02http://hdl.handle.net/2115/875engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityAntimutagenesisComet assayCYP1A1MushroomPleurotus cornucopiaeAntigenotoxic effect of Pleurotus cornucopiae extracts on the mutagenesis of Salmonella typhimurium TA 98 elicited by benzo[a]pyrene and oxidative DNA lesions in V 79 hamster lung cellsbulletin (article)649Japanese Journal of Veterinary Research0047-1917524163172AA0069128X0310.14943/jjvr.52.4.163Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 52, Number 4
oai:eprints.lib.hokudai.ac.jp:2115/8762022-03-30T06:02:19Zhdl_2115_871hdl_2115_865hdl_2115_140Muzandu, KaampweEl. Bohi, KhloodShaban, ZeinIshizuka, MayumiKazusaka, AkioFujita, Shoichi2006-01-12T04:25:06Z2005-02http://hdl.handle.net/2115/876engengThe Graduate School of Veterinary Medicine, Hokkaido Universityβ-caroteneDNA damage4-hydroxyestradiollycopenereactive oxygen speciesLycopene and beta-carotene ameliorate catechol estrogen-mediated DNA damagebulletin (article)649Japanese Journal of Veterinary Research0047-1917524173184AA0069128X0410.14943/jjvr.52.4.173Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 52, Number 4
oai:eprints.lib.hokudai.ac.jp:2115/8872023-07-14T02:20:41Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-01-12T08:46:11Z2004-09-14http://hdl.handle.net/2115/887平成16年9月14日付け「聖教新聞」からjpn聖教新聞社グローバリゼーションと民族主義column (author version)Sakurai, Yoshihide316.8聖教新聞文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/8772022-03-30T06:02:19Zhdl_2115_871hdl_2115_865hdl_2115_140NIKAIDOU, SatoshiISHIZUKA, MayumiMAEDA, YutakaHARA, YukihikoKAZUSAKA, AkioFUJITA, Shoichi2006-01-12T04:34:31Z2005-02http://hdl.handle.net/2115/877engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityCytochrome P450Green teaMutagensUDP-glucuronyltransferaseEffect of components of green tea extracts, caffeine and catechins on hepatic drug metabolizing enzyme activities and mutagenic transformation of carcinogensbulletin (article)649Japanese Journal of Veterinary Research0047-1917524185192AA0069128X0510.14943/jjvr.52.4.185Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 52, Number 4
oai:eprints.lib.hokudai.ac.jp:2115/8782022-03-30T06:02:19Zhdl_2115_871hdl_2115_865hdl_2115_1402006-01-12T04:46:29Z2005-02http://hdl.handle.net/2115/878engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityINFORMATION: Theses for Doctor of Veterinary Medicine (equivalent to Ph.D.)bulletin (article)649Japanese Journal of Veterinary Research0047-1917524193195AA0069128X06Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 52, Number 4
oai:eprints.lib.hokudai.ac.jp:2115/8792022-03-30T06:02:19Zhdl_2115_872hdl_2115_865hdl_2115_140Chang, Kyung-SooOhashi, KazuhikoLee, Sung-IlTakagi, MichihiroOnuma, Misao2006-01-12T04:58:29Z2005-08http://hdl.handle.net/2115/879engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityMarek’s disease virusmeqL-meqCD4+ T cellCD8+ T cellDetection of the meq gene in the T cell subsets from chickens infected with Marek's disease virus serotype 1bulletin (article)649Japanese Journal of Veterinary Research0047-1917531-2311AA0069128X0110.14943/jjvr.53.1-2.3Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 53, Number 1-2
oai:eprints.lib.hokudai.ac.jp:2115/8802022-03-30T06:02:19Zhdl_2115_872hdl_2115_865hdl_2115_140Tamura, JunKonno, AkihiroHashimoto, YoshiharuKon, Yasuhiro2006-01-12T05:05:50Z2005-08http://hdl.handle.net/2115/880engengThe Graduate School of Veterinary Medicine, Hokkaido Universitydiabeteskidneymicrodissectionrenin-angiotensin systemstreptozotocinUpregulation of renal renin-angiotensin system in mouse diabetic nephropathybulletin (article)649Japanese Journal of Veterinary Research0047-1917531-21326AA0069128X0210.14943/jjvr.53.1-2.13Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 53, Number 1-2
oai:eprints.lib.hokudai.ac.jp:2115/8812022-03-30T06:02:19Zhdl_2115_872hdl_2115_865hdl_2115_140He, WeiyongOhashi, KazuhikoSugimoto, ChihiroTsuji, MasayoshiOnuma, Misao2006-01-12T05:12:42Z2005-08http://hdl.handle.net/2115/881engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityTheileria orientalisprohibitinpiroplasmCloning and characterization of cDNA encoding a prohibitin-like protein from Theileria orientalisbulletin (article)649Japanese Journal of Veterinary Research0047-1917531-22735AA0069128X0310.14943/jjvr.53.1-2.27Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 53, Number 1-2
oai:eprints.lib.hokudai.ac.jp:2115/8822022-03-30T06:02:19Zhdl_2115_872hdl_2115_865hdl_2115_140Jeong, Ja-RyongYamasaki, MasahiroKomatsu, TomohikoInaba, MutsumiYamato, OsamuMaede, Yoshimitsu2006-01-12T05:19:22Z2005-08http://hdl.handle.net/2115/882enengThe Graduate School of Veterinary Medicine, Hokkaido Universitycanine Hsp 70erythrocyte maturationreticulocyte lysateexosomeIdentification of heat shock protein 70 in canine reticulocytes and mature erythrocytesbulletin (article)649Japanese Journal of Veterinary Research0047-1917531-23746AA0069128X0410.14943/jjvr.53.1-2.37Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 53, Number 1-2
oai:eprints.lib.hokudai.ac.jp:2115/8832022-03-30T06:02:19Zhdl_2115_872hdl_2115_865hdl_2115_1402006-01-12T05:22:18Z2005-08http://hdl.handle.net/2115/883engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityINFORMATION: Theses for the Doctor of Veterinary Medicine (equivalent to Ph.D.)bulletin (article)649Japanese Journal of Veterinary Research0047-1917531-24769AA0069128X05Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 53, Number 1-2
oai:eprints.lib.hokudai.ac.jp:2115/8842022-03-30T06:02:19Zhdl_2115_872hdl_2115_865hdl_2115_1402006-01-12T05:26:14Z2005-08http://hdl.handle.net/2115/884engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityINFORMATION: Theses for the Bachelor of Veterinary Medicinebulletin (article)649Japanese Journal of Veterinary Research0047-1917531-271105AA0069128X06Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 53, Number 1-2
oai:eprints.lib.hokudai.ac.jp:2115/8852019-04-25T04:32:29Zhdl_2115_872hdl_2115_865hdl_2115_1402006-01-12T05:30:25Z2005-08http://hdl.handle.net/2115/885engengThe Graduate School of Veterinary Medicine, Hokkaido UniversityINFORMATION: Publications by the staff of the Graduate School of Veterinary Medicinebulletin (article)649Japanese Journal of Veterinary Research0047-1917531-2107125AA0069128X07Japanese Journal of Veterinary Research獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine)Volume 53, Number 1-2
oai:eprints.lib.hokudai.ac.jp:2115/8992022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Uematsu, RieFurukawa, Jun-ichiNakagawa, HiroakiShinohara, YasuroDeguchi, KisaburoMonde, KenjiNishimura, Shin-Ichiro2006-01-13T06:28:42Z2005-09-16http://hdl.handle.net/2115/899Despite recent advances in our understanding of the significance of the protein glycosylation, the throughput of protein glycosylation analysis is still too low to be applied to the exhaustive glycoproteomic analysis. Aiming to elucidate the N-glycosylation of murine epidermis and dermis glycoproteins, here we used a novel approach for focused proteomics. A gross N-glycan profiling (glycomics) of epidermis and dermis was first elucidated both qualitatively and quantitatively upon N-glycan derivatization with novel, stable isotope-coded derivatization reagents followed by MALDI-TOF(/TOF) analysis. This analysis revealed distinct features of the N-glycosylation profile of epidermis and dermis for the first time. A high abundance of high mannose type oligosaccharides was found to be characteristic of murine epidermis glycoproteins. Based on this observation, we performed high mannose type glycoform-focused proteomics by direct tryptic digestion of protein mixtures and affinity enrichment. We identified 15 glycoproteins with 19 N-glycosylation sites that carry high mannose type glycans by off-line LC-MALDI-TOF/TOF mass spectrometry. Moreover the relative quantity of microheterogeneity of different glycoforms present at each N-glycan binding site was determined. Glycoproteins identified were often contained in lysosomes (e.g. cathepsin L and gamma-glutamyl hydrolase), lamellar granules (e.g. glucosylceramidase and cathepsin D), and desmosomes (e g. desmocollin 1, desmocollin 3, and desmoglein). Lamellar granules are organelles found in the terminally differentiating cells of keratinizing epithelia, and desmosomes are intercellular junctions in vertebrate epithelial cells, thus indicating that N-glycosylation of tissue-specific glycoproteins may contribute to increase the relative proportion of high mannose glycans. The striking roles of lysosomal enzymes in epidermis during lipid remodeling and desquamation may also reflect the observed high abundance of high mannose glycans.engThe American Society for Biochemistry and Molecular Biology, Inc.Copyright © 2005 by the American Society for Biochemistry and Molecular Biologytandem mass-spectrometryn-linkedglycoroteinselectron-capturelectinacidskinoligosacchridesdifferentiationidendificationHigh Throughput Quantitative Glycomics and Glycoform-focused Proteomics of Murine Dermis and Epidermisarticle (author version)篠原, 康郎464Molecular & Cellular Proteomics1535-94764121977198910.1074/mcp.M500203-MCP20016170054理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9032022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Yoshii, Shinichiro2006-01-16T08:24:17Z2005-11http://hdl.handle.net/2115/903The Japanese broadband market is maturing due to expansion in the needs for richer IT lifestyles with higher bit rate access. DSL technologies have played an important role in such growth because of their lower cost and ease of deployment. In order to expand the coverage area and compete with faster services such as FTTH, the DSL family of technologies is diversifying, and there are various services on the market currently in Japan. It is very important to manage those different kinds of systems in order to minimize interference due to crosstalk. This paper describes the Japanese spectrum management standard put into effect this year.engInstitute of Electrical and Electronics Engineers(IEEE)© 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.”Spectrum Management of DSL Systems in Japanarticle吉井, 伸一郎547.48TENCON 2005情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9022018-03-02T01:23:43Zhdl_2115_20032hdl_2115_122Sakurai, Yoshihide2006-01-16T08:20:49Z2005http://hdl.handle.net/2115/902engEast Asian Studies HokkaidoThe Conversion of Young Woman and Housewives in the Japanese Unificationarticle (author version)櫻井, 義秀169.21Occasional Paper35665文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9012018-03-02T01:23:44Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-01-16T08:19:01Z2005http://hdl.handle.net/2115/901jpn日本脱カルト協会(JSCPR)「カルト」と暴力 : オウムの教団戦略とその破綻article (author version)Sakurai, Yoshihide169JSCPR92034文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9042022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Saito, YutakaMori, Kotaro2006-01-16T08:24:58Z2005-08-11http://hdl.handle.net/2115/904We discuss how the diverse nature of aggression and cooperation can be understood if we focus our attention on where aggression reaches a compromise with non-aggression and/or cooperation in response to the relatedness between interactors. First we address whether Hamiltons rule explains the variation in male-to-male aggressiveness. Next we show that the variation in aggression and cooperation known in males of social spider mites (Saito, Evolution 49:413–417, 1995) can be explained by the change in relatedness (i.e. inclusive fitness) and effect of cooperative defence (synergistic effect). Then we learn that there is a sufficient condition of cooperation, which is determined primarily by two factors: the relatedness and synergistic effect of males. Furthermore, we expect that there is a condition where the aggression between males varies, depending upon how close the values of relatedness are to those of the sufficient condition of cooperation.engSpringer-Verlag Tokyo Inc.The original publication is available at www.springerlink.comPugnacityKin selectionRelatednessSocial spider miteTetranychidaeWhere does male-to-male aggression compromise cooperation?article (author version)齋藤, 裕481Population Ecology1438-389647315916610.1007/s10144-005-0224-11438-390XAccepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9052022-11-17T02:08:08Zhdl_2115_20042hdl_2115_136Takahashi, S.Kohgo, T.Nakamura, S.Arambawatta, A. K. S.Domon, T.Wakita, M.2006-01-16T08:25:31Z2005-11-09http://hdl.handle.net/2115/905The present study aimed to clarify how myoepithelial cells behave during regeneration of an atrophied sublingual gland by investigating cell proliferation and ultrastructure. Atrophy of rat sublingual glands was induced by unilateral ligation of the excretory duct near the hilum with metal clips, which were then removed after one week of ligation for regeneration. The sublingual glands 0–14 days after unligation were examined with single immunohistochemistry for actin as a marker of myoepithelial cells, double immunohistochemistry for actin and proliferating cell nuclear antigen (PCNA) as a marker of proliferating cells, and transmission electron microscopy (TEM). The single immunohistochemistry and TEM showed that myoepithelial cells surrounded residual ducts in the atrophied glands and immature and mature acini in the regenerating glands. Although PCNA-positive myoepithelial cells were identified during regeneration, PCNA labeling indices of myoepithelial cells were low at all time points except at day 7. Ultrastructurally, myoepithelial cells showing bizarre shaped structures in the atrophy changed with maturation of differentiating acinar cells and appeared normal in the regenerated glands. There was no differentiation of the remaining duct cells to myoepithelial cells. These observations suggest that proliferation of myoepithelial cells and differentiation to myoepithelial cells do not commonly participate in the regeneration of atrophied sublingual glands and that the bizarre shaped myoepithelial cells in the atrophied sublingual glands recover the original shapes with acinar cell regeneration.engSpringer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V.The original publication is available at www.springerlink.comparotid-glandsubmandibular-glandssalivary-glandsnuclear antigenproliferationaportosisdifferentiationsialandenitismitosisdeathBiological behavior of myoepithelial cells in the regeneration of rat atrophied sublingual glands following release from duct ligationarticle (author version)高橋, 茂497Journal of Molecular Histology1567-237936537337910.1007/s10735-005-9009-21573-6865歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9062022-11-17T02:08:08Zhdl_2115_20051hdl_2115_144Midorikawa, TakashiNemoto, KazuhiroKamiya, HitomiIshii, MasaoY. Inoue, Hisayuki2006-01-17T08:43:11Z2005-03-11http://hdl.handle.net/2115/906An edited version of this paper was published by AGU. Copyright (2005) American Geophysical Union.The long-term trend of the partial pressure of CO2 in surface seawater (pCO2sea) in late-January to early-February during the past two decades was examined in the western North Pacific along the repeat line at 137°E from 3°N to 34°N. The growth rate of pCO2 sea at each 1º in latitude ranged from +1.3 ± 0.2 to +2.1 ± 0.3 μatm yr-1, and the average was +1.7 ± 0.2 μatm yr-1. The growth of pCO2 sea is attributable mainly to the uptake of anthropogenic CO2 in surface water and, to a small extent, to the regional changes in sea surface temperature (SST). The net air-to-sea CO2 flux in January–February that accounts for 40 to 60% of the annual flux remained at a similar level in the subtropical regions (7ºN to 34ºN). In the equatorial region (3ºN to 6ºN), however, a slight increase in the CO2 efflux was seen.engAmerican Geophysical Union. (AGU)partial-pressuresurfacewaterscarbonPersistently strong oceanic CO2 sink in the western subtropical North Pacificarticle (author version)452Geophysical Research Letters0094827632L0561210.1029/2004GL021952環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9072022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Sahara, KenMarec, FrantišekTraut, Walther2006-01-17T08:51:29Z1999-09http://hdl.handle.net/2115/907We studied the occurrence of the TTAGG telomere repeats by fluorescence in situ hybridization (FISH) and Southern hybridization in ten insect species and two other arthropods. (TTAGG)n-containing telomeres were found in three Lepidoptera species, the silkworm Bombyx mori (in which the telomeric sequence was recently discovered), the flour moth Ephestia kuehniella, and the wax moth Galleria mellonella, in one species of Hymenoptera, the honey bee Apis mellifera, in one species of Coleoptera, the bark beetle Ips typographus, in one species of Orthoptera, the locust Locusta migratoria, and in a crustacean, the amphipod Gammarus pulex. They were absent in another species of Coleoptera, the mealworm Tenebrio molitor, in two representatives of Diptera, Drosophila melanogaster and Megaselia scalaris, in a species of Heteroptera, the bug Pyrrhocoris apterus and in a spider, Tegenaria ferruginea. Our results, which confirm and extend earlier observations, suggest that (TTAGG)n was a phylogenetically ancestral telomere motif in the insect lineage but was lost independently in different groups, being replaced probably by other telomere motifs. In the Coleoptera this must have happened rather recently as even members of the same family, Curculionidae, differ with respect to the telomeric DNA.engSpringer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V.The original publication is available at www.springerlink.com. Former publisher: Kluwer Academic PublishersTelomerefluorescence in situ hybridizationFISHSouthern hybridizationinsect phylogenyApisBombyxEphestiaGalleriaDrosophilaMegaseliaIpsTenebrioPyrrhocorisLocustaGammarusTegenariaTTAGG Telomeric Repeats in Chromosomes of Some Insects and Other Arthropodsarticle (author version)佐原, 健481Chromosome Research0967-38497644946010.1023/A:10092977295471573-6849Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9082022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Kawamura, N.Sahara, K.Fugo, H.2006-01-17T08:54:15Z2003-02-08http://hdl.handle.net/2115/908Two types of sperm, nucleate eupyrene and anucleate apyrene, occur in the silkworm as in other lepidopteran species. Hormones and other substances have been assumed to play important roles in sperm dimorphism. We established an in vitro cultivation system for silkworm spermatocytes, and found that apyrene sperm are not produced when spermatocytes from larval testes are cultivated, though eupyrene spermatocytes develop normally into mature sperm. Based on the fact that ecdysteroid titers increase rapidly and peak 1 day after spinning, and that the amount of glycogen reaches its peak 1 day before the spinning stage, we studied the effects of adding glucose and/or 20-hydroxyecdysone to the culture medium. The experiments disclosed a significant additive effect of both substances on apyrene sperm production.engElsevier Science Ltd.http://www.sciencedirect.com/science/journal/00221910SilkwormIn vitro cultureEupyrene and apyrene sperm20-HydroxyecdysoneGlucoseGlucose and ecdysteroid increase apyrene sperm production in in vitro cultivation of spermatocysts of Bombyx moriarticle (author version)佐原, 健633Journal of Insect Physiology0022-1910491253010.1016/S0022-1910(02)00223-8Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9112022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Okita, AtsushiSuda, YoshiyukiOzeki, AtsushiSugawara, HirotakeSakai, Yosuke2006-01-19T07:18:11Z2006-01-03http://hdl.handle.net/2115/911Carbon nanotubes (CNTs) were grown on Si substrates by rf CH4 plasma-enhanced chemical vapor deposition in a pressure range of 1–10 Torr, and then characterized by scanning electron microscopy. At 1 Torr, the CNTs continued growing up to 60 min, while their height at 4 Torr had leveled off at 20 min. CNTs hardly grew at 10 Torr and amorphous carbon was deposited instead. CH4 plasma was simulated using a one-dimensional fluid model to evaluate the production and transport of radicals, ions, and nonradical neutrals. The amount of simulated carbon supplied to the electrode surface via the flux of radicals and ions such as CH3, C2H5, and C2H was consistent with estimations from experimental results.engAmerican Institute of Physicshttp://www.aip.org/Copyright © 2006 American Institute of PhysicsPredicting the amount of carbon in carbon nanotubes grown by CH4 rf plasmasarticle菅原, 広剛427Journal of Applied Physics0021-8979991014302-1014302-710.1063/1.2150599情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9102019-04-25T02:17:16Zhdl_2115_680hdl_2115_116Miyachi, A.Tachizawa, K.2006-01-19T06:23:07Z2005-01-01http://hdl.handle.net/2115/910http://eprints3.math.sci.hokudai.ac.jp/1247/engDepartment of Mathematics, Hokkaido University00-xx GENERALProceedings of the Harmonic Analysis and its Applications at Sapporobulletin (article)410Hokkaido University technical report series in mathematics1348-43381031AA11958802010310.14943/835理学院・理学研究院 (Graduate School of Science / Faculty of Science)北海道大学数学講究録 = Hokkaido University technical report series in mathematics
oai:eprints.lib.hokudai.ac.jp:2115/9172022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Saitoh, KunimasaFlorous, Nikolaos J.Koshiba, Masanori2006-01-20T06:28:21Z2005-12-05http://hdl.handle.net/2115/917The objective of the present paper is to introduce and numerically demonstrate the operation of a novel band-pass filter based on the phenomenon of resonant tunneling inmulti-core photonic crystal fibers (PCFs). The proposed PCF consists of two identical cores separated by a third one which acts as a resonator. With a fine adjustment of the design parameters associated with the resonant-core, phase matching at a single wavelength can be achieved, thus enabling very narrow-band resonant directional coupling between the input and the output cores. The validation of the design is ensured with an accurate PCF analysis based on finite element and beam propagation algorithms. The proposed narrow band-pass filter can be employed in various applications such as all fiber and pass/bandstop filtering.http://www.opticsexpress.org/abstract.cfm?URI=OPEX-13-25-10327engOptical Society of America© 2005 Optical Society of America, Inc.beam-propagation methodcouplersguidesDesign of narrow band-pass filters based on the resonant-tunneling phenomenon in multi-core photonic crystal fibersarticle (author version)斉藤, 晋聖547Optics Express1094-40871325103271033510.1364/opex.13.010327情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9232022-11-17T02:08:08Zhdl_2115_20040hdl_2115_121Kageyama, HiroyukiMorita, KoichiKatoh, ChietsuguTsukamoto, TakahiroNoriyasu, KazuyukiMabuchi, MegumiNaya, MasanaoKawai, YukoTamaki, Nagara2006-01-23T04:26:05Z2005-07-25http://hdl.handle.net/2115/923Purpose Long-chain fatty acid (LCFA) is the main energy source for normal myocardium at rest, but in ischemic myocardium, the main energy substrate shifts from LCFA to glucose. 123I-BMIPP is a radiolabeled LCFA analog. In chronic stable angina without previous infarction, we suppose that reduced 123I-BMIPP uptake is related to the substrate shift in myocardium with decreased myocardial flow reserve (MFR). The purpose of this study was to relate 123I-BMIPP uptake to rest myocardial blood flow (MBF), hyperemic MBF, and MFR assessed with 15O-water positron emission tomography (PET).
Methods We enrolled 21 patients with chronic stable angina without previous infarction, all of whom underwent 123I-BMIPP single-photon emission computed tomography (SPECT) and 15O-water PET. The left ventricle was divided into 13 segments. In each segment, rest MBF and hyperemic MBF were measured by PET. 123I-BMIPP uptake was evaluated as follows: score 0=normal, 1=slightly decreased uptake, 2=moderately decreased uptake, 3=severely decreased uptake, and 4=complete defect. 123I-BMIPP uptake was compared with rest MBF, hyperemic MBF, and MFR.
Results The numbers of segments with 123I-BMIPP scores 0, 1, 2, 3, and 4 were 178, 40, 25, 24, and 0, respectively. The rest MBFs for scores 0, 1, 2, and 3 were 0.93±0.25, 0.86±0.21, 0.97±0.30, and 0.99±0.37 ml/min/g, respectively. The hyperemic MBFs for scores 0, 1, 2, and 3 were 2.76±1.29, 1.84±0.74, 1.37±0.39, and 1.08±0.40 ml/min/g, respectively. The MFRs for scores 0, 1, 2, and 3 were 3.01±1.38, 2.20±0.95, 1.44±0.22, and 1.10±0.26, respectively. As 123I-BMIPP uptake declined, hyperemic MBF and MFR decreased.
Conclusion In chronic stable angina without previous infarction, reduced 123I-BMIPP uptake implies decreased MFR.engSpringer-Verlag GmbHThe original publication is available at www.springerlink.com123I-BMIPPMyocardial flow reserveSubstrate shiftLong-chain fatty acid metabolismReduced 123I-BMIPP uptake implies decreased myocardial flow reserve in patients with chronic stable anginaarticle (author version)玉木, 長良493.231European Journal of Nuclear Medicine and Molecular Imaging1619-707033161210.1007/s00259-005-1863-31619-708916041617医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9222022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Matsuda, ChikayoshiTakagi, MutsumiHattori, TakakoWakitani, ShigeyukiYoshida, Toshiomi2006-01-20T07:20:38Z2005-01http://hdl.handle.net/2115/922A differentiation method of human bone marrow mesenchymal stem cells (MSCs) to chondrocytes was developed for the construction of a three-dimensional (3D) cartilage tissue. The adhesive cells, which were isolated from a human bone marrow aspirate were embedded in type I collagen in a poly-l-lactate-glycolic acid copolymer (PLGA) mesh and cultivated for 4 week together with growth factors. The degree of cellular differentiation was estimated by quantitative RT-PCR of aggrecan and type II collagen mRNAs and by staining with Safranin O. The 3D culture showed a higher degree of differentiation even without growth factors than the conventional pellet culture with growth factors, namely, dexamethasone and transforming growth factor (TGF)-β 3. The 3D culture for 2 week with the combined addition of dexamethasone, TGF-β 3, and insulin-like growth factor (IGF)-I reached a 30% expression of aggrecan mRNA compared with that in primary human chondrocytes, while the aggrecan mRNA expression in the conventional pellet culture was less than 2%. The sequential two-step differentiation cultivation, during which the cells were cultivated in 3D for 1 week after the conventional two-dimensional (2D) culture for 1 week, could markedly accelerate the expression of aggrecan mRNA compared with the 3D cultivation for 2 week.engSpringer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V.The original publication is available at www.springerlink.comChondrocyteDifferentiationMesenchymal stem cellThree-dimensionDifferentiation of Human Bone Marrow Mesenchymal Stem Cells to Chondrocytes for Construction of Three-dimensional Cartilage Tissuearticle (author version)高木, 睦481.1Cytotechnology0920-9069471-3111710.1007/s10616-005-3751-x1573-0778工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9242022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Mori, KotaroSaito, Yutaka2006-01-23T04:31:12Z2004-03-20http://hdl.handle.net/2115/924The social spider mites (Acari: Tetranychidae) of Stigmaeopsis weave dense nests on the underside of host leaves. Four species occur on the leaves of bamboo in Japan: Stigmaeopsis longus, S. celarius, S. takahashii and S. saharai. We initially reconfirmed the occurrence of distinct variation in nest size among the species. Based on the hypothesis that this variation plays a role in protecting the spider mites from predators, we looked at the behavior of the natural enemies that occur on the host plants along with members of Stigmaeopsis. We found considerable variation in the ability of nests to protect the spider mite eggs. The smallest nests protected the eggs against 3 predators, whereas the largest nests protected the eggs only against one predator species. In other words, decreases in nest size increased egg defense. Thus we concluded that nest size variation reflects a strategy for reducing predation.engSpringer-Verlag GmbHThe original publication is available at www.springerlink.comSpider mitesSilken web nestProtective refugePredator-prey interactionStigmaeopsisNest size variation reflecting anti-predator strategies in social spider mites of Stigmaeopsis (Acari: Tetranychidae)article (author version)斉藤, 裕615.89Behavioral Ecology and Sociobiology0340-544351320120610.1007/s00265-004-0776-71432-0762Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9252022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Mori, KotaroSaito, Yutaka2006-01-23T04:31:56Z2004-08-25http://hdl.handle.net/2115/925This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Behavioral Ecology following peer review. The definitive publisher-authenticated version Oxford University Press, Behavioral Ecology,16(1),2005,232-238 is available online at: http://www.oxfordjournals.org/ that the author will receive upon publication here.The spider mites belonging to the genus Stigmaeopsis construct extremely dense oval woven roofs (web-nests) over depressions on the lower surface of host leaves and are known to have a kind of sociality. The 4 species that occur on bamboo plants in Japan, show different nest areas. The nest area of Stigmaeopsis longus is the largest, followed by S. celarius, S. takahashii and S. saharai in decreasing order. Smaller nests effectively prevent adults of several predator mite species from intruding. We hypothesized that variation in nest size reflects different anti-intruder adaptations of this mite group in relation to their sociality. The larger nest makers may adopt an alternative anti-intruder strategy, i.e. counterattack by a large group, so as to compensate for the disadvantage of large nests. S. longus and S. celarius adults effectively defended their large nests against potential predators, and the effects of nest defense increased with the number of individuals in a nest. S. takahashii and S. saharai revealed no counterattack effect. Counterattack abilities that increase with the adult density and thus sociality may compensate for the vulnerability of larger nests.http://www.oxfordjournals.org/jpnOxford University Presscooperationcounterattackgroup defensesocialityspider mitesweb-nestVariation in social behavior within a spider mite genus, Stigmaeopsis (Acari: Tetranychidae)article (author version)斉藤, 裕615.84Behavioral Ecology1465-727916123223810.1093/beheco/arh1571045-2249Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9262022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Saito, Y.Sahara, K.Mori, K.2006-01-23T04:32:31Z2000http://hdl.handle.net/2115/926The effect of inbreeding on haplo-diploid organisms has been regarded as very low, because deleterious recessive genes on hemizygous (haploid) males were immediately purged generation by generation. However, we determined such recessive genes to decrease female fecundity in a population of Schizotetranychus miscanthi Saito which is known in the Acari as a subsocial species with haplo-diploidy. In mother-son inbreeding experiments, there was no depression in egg hatchability nor in the larval survival of progeny over 4 generations. There was, on the other hand, significant inbreeding depression in the fecundity with increasing f-value. Crosses between two lineages, one having deleterious effects on the fecundity and the other having no such effects, established during the inbreeding, revealed heterosis, and backcrosses showed that the depression was caused by deleterious recessive(s). These results strongly suggest the existence of some deleterious genes governing only the traits of adult females in wild populations of haplo-diploid organisms.jpnBlackwell Science LtdCopyright © 2000, Blackwell Publishinggeneticsheterosisdeleterious recessiveTetranychidaesubsocialitybackcrossfemale-limited genesInbreeding depression by recessive deleterious genes affecting female fecundity of a haplo-diploid mitearticle (author version)斉藤, 裕615.84Journal of Evolutionary Biology13466867810.1046/j.1420-9101.2000.00198.xAccepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9272022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Horita, MituruChittenden, Anthony R.Sato, YukieSaito, Yutaka2006-01-23T04:32:59Z2003-07-08http://hdl.handle.net/2115/927Spider mites inhabiting Sasa bamboo show considerable variation in traits believed to be the result of coevolution between predator and prey. In Schizotetranychus recki Ehara inhabiting the hairy leaves of a dwarf bamboo, Sasa senanensis, all quiescent stages, including eggs, appear within web boxes in the leaf hairs of their host plant, and this habit is thought to be a trait involved in predator avoidance. To test this hypothesis, the survival rates of S. recki eggs inside a web box and those freed of a web box were assessed in relation to six predator species that co-occur with the spider mite in the field. The results clearly show that the webbing behavior (web box) of S. recki has a function in avoiding five predator species. However, one predator species, Agistemus summersi Ehara, preyed more on eggs protected by a web box. This suggests that this predator species has a special trait to overcome the nest barriers.jpnSpringer-Verlag Tokyo Inc.The original publication is available at www.springerlink.comAcariTetranychidaePhytoseiidaeStigmaeidaeCoevolutionPredator–prey interactionSasa bambooFunction of the web box as an anti-predator barrier in the spider mite, Schizotetranychus reckiarticle (author version)斉藤, 裕615.84Journal of Ethology22110510810.1007/s10164-003-0101-3Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9282023-07-14T02:21:12Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-01-23T04:33:24Z2005-01-25http://hdl.handle.net/2115/928jpn京都仏教会平和の構築 : 対話する意志と力article (author version)Sakurai, Yoshihide361京佛7745文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9292023-07-14T02:22:09Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-01-23T04:34:21Z2005-04-21http://hdl.handle.net/2115/929中外日報 2005年4月21日掲載jpn中外日報社IAHR世界大会を終えて : 宗教と暴力・新宗教・カルト問題column (author version)Sakurai, Yoshihide169中外日報文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9302023-07-14T02:22:41Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-01-23T04:34:46Z2005-08-23http://hdl.handle.net/2115/930中外日報 2005年8月23日掲載jpn中外日報社スペイン・国際カルト研究学会大会報告column (author version)Sakurai, Yoshihide169中外日報文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9312023-07-14T02:23:15Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-01-23T04:35:14Z2005-04-25http://hdl.handle.net/2115/931jpn新宗教新聞社市民社会形成の担い手に宗教組織はなりうるか : 新宗教の国際協力をどう評価するかcolumn (author version)Sakurai, Yoshihide160新宗教新聞文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9332022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Nakahara, MasakiTakagi, MutsumiHattori, TakakoWakitani, ShigeyukiYoshida, Toshiomi2006-01-23T05:21:28Z2005-01http://hdl.handle.net/2115/933Effects of subcultivation of human bone marrow mesenchymal stem cells on their capacities for chondrogenesis and supporting hematopoiesis, and telomea length were investigated. Mesenchymal stem cells were isolated from human bone marrow aspirates and subcultivated several times at 37℃ under a 5% CO2 atmosphere employing DMEM medium containing 10% FCS up to the 20th population doubling level (PDL). The ratio of CD45- CD105+ cells among these cells slightly increased as PDL increased. However, there was no marked change in the chondrogenic capacity of these cells, which was confirmed by expression assay of aggrecan mRNA and Safranin O staining after pellet cell cultivation. The change in capacity to support hematopoiesis of cord blood cells was not observed among cells with various PDLs. On the other hand, telomere length markedly decreased as PDL increased at a higher rate than that at which telomere length of primary mesenchymal stem cells decreased as the age of donor increased.engSpringer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V.The original publication is available at www.springerlink.comChondrogenesisHematopoiesisMesenchymal stem cellPopulation doubling levelSubcultivationTelomereEffect of Subcultivation of Human Bone Marrow Mesenchymal Stem on their Capacities for Chondrogenesis, Supporting Hematopoiesis, and Telomea Lengtharticle (author version)高木, 睦481.1Cytotechnology0920-9069471-3192710.1007/s10616-005-3752-9工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9322022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Ezawa, TatsuhiroCavagnaro, Timothy R.Smith, Sally E.Smith, F. AndrewOhtomo, Ryo2006-01-23T05:19:29Z2004-02http://hdl.handle.net/2115/932The definitive version is available at www.blackwellsynergy.comThe rate of polyphosphate accumulation in extraradical hyphae of an arbuscular mycorrhizal fungus was investigated by conventional histochemistry and a new enzymatic method using a bacterial enzyme, polyphosphate kinase. Marigold ( Tagetes patula cv. Bonanza Orange) was inoculated with Archaeospora leptoticha and grown under P-deficient conditions. Extraradical hyphae were harvested at 0, 1, 3 and 24 h after 1 m M P-application. PolyP levels were assessed by both metachromasy of Toluidine blue O and polyphosphate kinase which converted polyP to ATP followed by the ATP-luciferase assay. Percentage of hyphae with metachromatic granules was increased from 25 to 44% from 0 to 1 h, and a maximum of 50% was reach by 3 h. Polyphosphate content was doubled from 1 to 3 h after P-application (4.8–10.0 μmol as Pi mg − 1 protein) at a rate of 46.4 ± 15.1 nmol min − 1 mg − 1 . The rate of polyphosphate accumulation in the hyphae was surprisingly rapid as those of polyphosphate-hyper accumulating microorganisms. The enzymatic method employed in the present study allows highly specific and sensitive assessment of polyphosphate in the mycorrhizal system.engBlackwell Publishingarbuscular mycorrhizal fungiluciferasemetachromasypolyphosphatepolyphosphate kinaseToluidine Blue O.Rapid accumulation of polyphosphate in extraradical hyphae of an arbuscular mycorrhizal fungus as revealed by histochemistry and a polyphosphate kinase/luciferase systemarticle (author version)江澤, 辰広474.65New Phytologist0028-646X161238739210.1046/j.1469-8137.2003.00966.x1469-8137Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9342022-11-17T02:08:08Zhdl_2115_20040hdl_2115_121Fukaya, MasahiroYamazaki, MayaSakimura, KenjiWatanabe, Masahiko2006-01-24T06:14:59Z2005-09-19http://hdl.handle.net/2115/934The γ subunit of voltage-dependent Ca2+ channels (VDCCs) is characterized by molecular diversity and regulation of AMPA-type glutamate receptors as well as VDCCs. In the present study, we examined expressions for the VDCCγ1–8 subunit mRNAs in developing and adult mouse brains by in situ hybridization. In adult brains, the γ2 and γ7 subunit mRNAs were widely expressed in various grey matter regions with the highest level in cerebellar Purkinje cells and granule cells. The γ3 and γ8 subunit mRNAs predominated in the telencephalon, with the latter being at striking levels in the hippocampus. The γ4 subunit mRNA was enriched in the olfactory bulb, striatum, thalamus and hypothalamus. The γ5 subunit mRNA was abundant in the olfactory bulb, hippocampal CA2, thalamus, inferior colliculus and Bergmann glia. Transcripts of these subunits were detected in embryonic brains: some showed well-preserved spatial patterns (γ2, γ5, γ7 and γ8), while others underwent developmental up- (γ3) or down-regulation (γ4). In contrast, the γ1 and γ6 subunit mRNAs were negative or very low throughout brain development. Therefore, the present study has revealed spatial diversity in gene expression for individual VDCCγ subunits, presumably reflecting functional diversity of this protein family and their differential involvement in neural function.engElsevier Ireland Ltd and the Japan Neuroscience Societyhttp://www.sciencedirect.com/science/journal/01680102VDCCγ subunitStargazinTARPsDevelopmentmRNAIn situ hybridizationBrainSpatial diversity in gene expression for VDCCγ subunit family in developing and adult mouse brainsarticle (author version)深谷, 昌弘492.16Neuroscience Research0168-010253437638310.1016/j.neures.2005.08.00916171881医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9392022-11-17T02:08:08Zhdl_2115_20043hdl_2115_137Kase, S.Saito, W.Yokoi, M.Yoshida, K.Furudate, N.Muramatsu, M.Saito, A.Kase, M.Ohno, S.2006-01-25T04:12:29Z2006-01http://hdl.handle.net/2115/939Background/aim: The mechanisms of the cellular origin and cell proliferation in the idiopathic epiretinal membrane (ERM) are unsolved. The aim of this study was to examine the expression of cell cycle related molecules and glutamine synthetase (GS), which is expressed in Müller cells and their processes, in ERM tissues.
Methods: The ERMs were surgically removed using pars plana vitrectomy. Formalin fixed, paraffin embedded ERM tissues were analysed by immunohistochemistry with anti-cyclin D1, p27 (KIP1), proliferating cell nuclear antigen (PCNA), and GS antibodies.
Results: The histopathological findings showed that all the ERMs consisted of oval or spindle mononuclear cells with thin collagen-like tissues. Immunoreactivity for GS was detected in collagen-like tissues of ERM, presenting a continuous, isodense pattern. GS immunopositive cells in all cases expressed PCNA in their nuclei. Nuclear immunoreactivity for cyclin D1 was noted in the ERM constituent cells, whereas p27 (KIP1) positive nuclei were not detected.
Conclusion: Cyclin D1 and PCNA were expressed in the idiopathic ERM, which was mainly derived from Müller cells and extensions of their processes.http://www.bmj.comengBMJ Publishing Groupcyclinepiretinal membraneglutamine synthetaseproliferating cell nuclear antigenExpression of glutamine synthetase and cell proliferation in human idiopathic epiretinal membranearticle加瀬, 諭491.174British Journal of Ophthalmology0007-1161901969810.1136/bjo.2005.078394北海道大学病院 (Hokkaido University Hospital)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9402022-11-17T02:08:08Zhdl_2115_20042hdl_2115_136Harada, ShojiAkhter, RahenaKurita, KeikoMori, MiyakoHoshikoshi, MisuzuTamashiro, HidehikoMorita, Manabu2006-02-06T06:06:36Z2004-06-23http://hdl.handle.net/2115/940The aim of this study was to determine associations of lifestyle with dental health behaviors such as tooth brushing frequency, use of extra cleaning devices, and regular dental visits to a dentist. Methods: Data were collected from 1182 dentate residents 18 years of age or older who resided in a typical farming district. The data included data on the demographic factors, dental health behavior, and various aspects of lifestyle, i.e. mental condition, alcohol consumption, smoking habit, physical activity, social activity, dietary habits, and presence of systemic diseases. Results: Multiple logistic regression analysis revealed that subjects in a younger group (18–39 years of age) and subjects who had never smoked brushed their teeth more frequently. Experience of social volunteer work and presence of systemic disease were correlated with use of extra cleaning devices. Associations of female gender with frequency of tooth brushing and use of extra cleaning devices were weakly positive. The subjects who considered dietary combination carefully and those who lived alone were predisposed to visit a dentist regularly. Conclusions: The results indicate that dental health behavior is associated with lifestyle as well as demographic factors.engBlackwell MunksgaardCopyright © 2005, Blackwell Publishingdental health behaviorlifestylerural areaRelationships between lifestyle and dental health behaviors in a rural population in Japanarticle (author version)アクター, ラヘナ497.9Community Dentistry And Oral Epidemiology0301-5661331172410.1111/j.1600-0528.2004.00189.x15642043歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9412022-11-17T02:08:08Zhdl_2115_20040hdl_2115_121Kubo, NaokiZhao, SongjiFujiki, YutakaKinda, AkiyoshiMotomura, Nobutoku2006-02-06T06:09:19Z2005http://hdl.handle.net/2115/941Objectives: Small animal imaging has recently been focused on basic nuclear medicine. We have designed and built a small animal SPECT imaging system using a semiconductor camera and a newly designed collimator. We assess the performance of this system for small object imaging. Methods: We employed an MGC1500 (Acrorad Co.) camera including a CdTe semiconductor. The pixel size was 1.4 mm/pixel. We designed and produced a parallel-hole collimator with 20-mm hole length. Our SPECT system consisted of a semiconductor camera with the subject holder set on an electric rotating stage controlled by a computer. We compared this system with a conventional small animal SPECT system comprising a SPECT-2000H scanner with four Anger type cameras and pinhole collimators. The count rate linearity for estimation of the scatter was evaluated for a piechart phantom containing different concentrations of 99mTc. We measured the FWHM of the 99mTc SPECT line source along with scatter. The system volume sensitivity was examined using a flood source phantom which was 35 mm long with a 32-mm inside diameter. Additionally, an in vivo myocardial perfusion SPECT study was performed with a rat. Results: With regards to energy resolution, the semiconductor camera (5.6%) was superior to the conventional Anger type camera (9.8%). In the count rate linearity evaluation, the regression lines of the SPECT values were y = 0.019x + 0.031 (r2 = 0.999) for our system and y = 0.018x + 0.060 (r2 = 0.997) for the conventional system. Thus, the scatter count using the semiconductor camera was less than that using the conventional camera. FWHMs of our system and the conventional system were 2.9 ± 0.1 and 2.0 ± 0.1 mm, respectively. Moreover, the system volume sensitivity of our system [0.51 kcps/(MBq/ ml)/cm] was superior to that of the conventional system [0.44 kcps/(MBq/ml)/cm]. Our system provided clear images of the rat myocardium, sufficient for practical use in small animal imaging. Conclusions: Our SPECT system, utilizing a semiconductor camera, permits high quantitative analysis by virtue of its low scatter radiation and high sensitivity. Therefore, this system may contribute to molecular imaging of small animals and basic medical research.engJapanese Society Nuclear Medicinesemiconductor detectorssmall animal imagingsingle photon emission computed tomographyEvaluating performance of a pixel array semiconductor SPECT systemarticle (author version)久保, 直樹492.1Annals Of Nuclear Medicine0914-7187197633639医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9422023-07-26T01:55:46Zhdl_2115_20038hdl_2115_123濱田, 康行2006-02-06T06:10:01Z2005-12-12http://hdl.handle.net/2115/942「日経ビジネス」2005年12月12日掲載jpn日経BP社金融庁が牛耳る中小金融-夏祭り参加から企業再生まで強制-article (author version)Hamada, Yasuyuki338.3日経ビジネス0029-0491142144経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9432022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139水野, 宏紀鈴木, 直人田中, 順一成田, 敏夫2006-02-06T06:11:01Z2005-02http://hdl.handle.net/2115/943It applied to power module solder joint using the Sn-low In system alloy, the heat-cycle test was carried out, and the thermal fatigue property was evaluated from the progress length of a crack. As a result, we investigated microstructure for Sn-In-Al alloy and considered to formation of organization at the time of minute element addition.jpn社団法人 溶接学会Sn-In-Al solder alloyThermal fatigue propertiesMinute element addition微量元素添加によるSn-低In系はんだの組織特性の評価Evaluation of the Microstructure Property of Sn-low-In Systemarticle (author version)MIZUNO, HirokiSUZUKI, NaotoTANAKA, JunichiNARITA, Toshio56611th Symposium on Microjoining and Assembly Technology in Electronics34139144工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9442022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139鈴木, 直人田中, 順一成田, 敏夫2006-02-06T06:11:41Z2005-02http://hdl.handle.net/2115/944We researched the effect of Al addition into Sn-Ag solder alloys. Addition of small amount of Al into Sn-Ag alloys made sub-grains in the β-Sn phase finer. And many Ag2Al particles were dispersed. Both primary phase and eutectic phase in Sn-Ag-Al alloys were almost evenly deformed against tensile stress. Ag2Al particles obstructed the propagation of crack during thermal cycle, so propagation rate was delayed. Sn-2Ag-0.05Al and Sn-2Ag-0.1Al showed better mechanical property and thermal cycle property than Sn-3Ag-0.5Cu.jpn社団法人 溶接学会Al additionsub-grainAg2Al particleshardnessdeformationthermal cyclecrack propagationSn-Ag系はんだ組織に与える微量添加Alの効果とその接合性に関する研究Study of Effect of Al Addition into Sn-Ag Solder on Microstructure and Bondabilityarticle (author version)SUZUKI, NaotoTANAKA, JunichiNARITA, Toshio56611th Symposium on Microjoining and Assembly Technology in Electronics346166工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9452022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138HASHIDOKO, Yasuyuki2006-02-06T06:15:27Z2005http://hdl.handle.net/2115/945The plant surface, which is representative of the phyllopane and rhizoplane, is a characteristic habitat for microorganisms. In this review, the ecological roles of phytoepiphytic bacteria will be described. The phylloplane and rhizoplane, which are adjacent to the atmosphere and soil sphere respectively, accumulate topically and /or selectively release secondary metabolites that are specific to the plant genera and species which reside within these regions. Some epiphytes have abilities to decarboxylate xenobiotic phenolic acids that have accumulated in the plant tissues and surface as a majority of such secondary metabolites. In physicochemically stressed soil, rhizosphere microflora often remedy such microenvironments within the rhizosphere in order to assist in the survival of the host, and some of the microfloral compositions behave as if they were symbionts. Specifically, some Sphingomonas spp., which are frequently isolated from the rhizosphere of acidic soil-tolerant plants in tropical zones, make possible the development of a rhizo-biocomplex. In this review, the possibility of rhizosphere regulation utilizing such a rhizo-biocomplex is discussed.eng日本農芸化学会decarboxylation of phenolic acidsgellan gum mediumglandular trichomes of Rosa rugosaSphingomonasrhizo-biocomplexEcochemical Studies of Interrelationships between Epiphytic Bacteria and Host Plants via Secondary Metabolitesarticle橋床, 泰之615Bioscience Biotechnology And Biochemistry0916-845169814271441農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9462022-11-17T02:08:08Zhdl_2115_20074hdl_2115_161SHINANO, TAKURONAKAJIMA, KANTOWASAKI, JUNMORI, HARUHIDEZHENG, TEIOSAKI, MITSURU2006-02-06T06:17:45Z2006http://hdl.handle.net/2115/946mRNA expression patterns of genes for metabolic key enzymes sucrose phosphate synthase (SPS), phosphoenolpyruvate carboxylase (PEPC), pyruvate kinase, ribulose 1,5-bisphosphate carboxylase/oxygenase, glutamine synthetase 1, and glutamine synthetase 2 were investigated in leaves of rice plants grown at two nitrogen (N) supplies (N0.5, N3.0). The relative gene expression patterns were similar in all leaves except for 9th leaf, in which mRNA levels were generally depressed. Though increased N supply prolonged the expression period of each mRNA, it did not affect the relative expression intensity of any mRNA in a given leaf. SPS Vmax, SPS limiting and PEPC activities, and carbon flow were examined. The ratio between PEPC activity and SPS Vmax was higher in leaves developed at the vegetative growth stage (vegetative leaves: 5th and 7th leaves) than in leaves developed after the ear primordia formation stage (reproductive leaves: 9th and flag leaves). PEPC activity and SPS Vmax decreased with declining leaf N content. After using 14CO2 the 14C photosynthate distribution in the amino acid fraction was higher in vegetative than in reproductive leaves when compared for the same leaf N status. Thus, at high PEPC/SPS activities ratio, more 14C photosynthate was distributed to the amino acid pool, whereas at higher SPS activity more 14C was channelled into the saccharide fraction. Thus, leaf ontogeny was an important factor controlling photosynthate distribution to the N- or C-pool, respectively, regardless of the leaf N status.engSpringer NetherlandsThe original publication is available at www.springerlink.comglutamine synthetasesleaf developmentmRNA expressionOryzaphosphoenolpyruvate carboxylasepyruvate kinaseribulose-1,5-bisphosphatecarboxylase/oxygenasesucrose phosphate synthaseDevelopmental regulation of photosynthate distribution in leaves of ricearticle (author version)信濃, 卓郎470Photosynthetica0300-360444111010.1007/s11099-005-0151-61573-9058創成研究機構 (Creative Research Institution)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9472023-09-01T01:12:47Zhdl_2115_20070hdl_2115_157高田, 真樹子星野, 洋一郎中野, 英樹佐藤, 博二2006-02-06T06:18:42Z2003-03http://hdl.handle.net/2115/947jpn北海道大学北方生物圏フィールドセンター 耕地圏ステーション 生物生産研究農場ハスカップ(Lonicera caerulea L.)における系統選抜のための食味および形質調査article (author version)625農場研究報告0385-6445332138北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9482022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Fujisawa, TakeshiKoshiba, Masanori2006-02-06T10:32:33Z2006http://hdl.handle.net/2115/948A polarization-independent optical directional coupler based on slot waveguides is proposed and analyzed by using rigorous full-vectorial analysis methods based on a finite-element scheme. Properly choosing materials and structural parameters makes the coupling length for quasi-TE modes become equal to that for quasi-TM modes. Tolerances to operating wavelength and structural parameters are also discussed. The proposed coupler can be used for highly integrated optical circuits without polarization diversity schemes.engOptical Society of America© 2006 Optical Society of America, Inc.Optical devicesIntegrated optics devicesOptical devicesMicrostructure devicesPolarization-independent optical directional coupler based on slot waveguidesarticle (author version)藤澤, 剛425Optics Letters0146-95923115658情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9822022-11-17T02:08:08Zhdl_2115_20057hdl_2115_148Gaizauskas, EugenijusVanagas, EgidijusJarutis, VygandasJuodkazis, SauliusMizeikis, VygantasMisawa, Hiroaki2006-02-07T09:45:28Z2006http://hdl.handle.net/2115/982Filamentation of Bessel-Gauss pulses propagating in borosilicate glass is found to produce damage lines extending over hundreds of micrometers and consisting of discrete, equidistant damage spots. These discrete damage traces are explained by self-regeneration of Gauss-Bessel beams during propagation and are potentially applicable in laser microfabrication of transparent materials.engDiscrete damage traces from filamentation of Gauss-Bessel pulses© 2006 Optical Society of America, Inc.Nonlinear opticsSelf-action effectsOptical design and fabricationMicrostructure fabricationOther areas of opticsLaser materials processingDiscrete damage traces from filamentation of Gauss-Bessel pulsesarticle (author version)三澤, 弘明425Optics Letters0146-95923118082電子科学研究所 (Research Institute for Electronic Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9832022-11-17T02:08:08Zhdl_2115_20043hdl_2115_137Kunihara, TakashiShiiya, NorihikoBin, LuoYasuda, Keishu2006-02-07T09:50:20Z2005-05-24http://hdl.handle.net/2115/983Purpose The early increase in serum S100β after cardiopulmonary bypass (CPB) seems to be derived from an extracerebral source. To exclude contamination, we investigated the arterio-jugular differences in S100β levels in patients receiving selective cerebral perfusion (SCP). We also evaluated the brain-protective effect of SCP by comparing the arterial S100β levels with those in patients undergoing coronary artery bypass grafting (CABG).
Methods We measured arterial and jugular venous levels of S100β in ten patients undergoing aortic arch repair with SCP for up to 12h postoperatively (SCP group). We also measured arterial levels of S100β in nine patients undergoing CABG (CPB group).
Results There was no incidence of hospital death or stroke. The arterial levels of S100β in both groups were comparable and peaked just after the conclusion of CPB. The arterial and jugular venous levels of S100β were almost equivalent. The arterio-jugular differences in S100β levels were negligible, even in our SCP-group patient with postoperative delirium, who had a peak value three times higher than the other patients.
Conclusions The arterio-jugular differences in S100β did not clarify the origin of their increase. Thus, measuring the jugular venous levels of S100β in patients without postoperative clinical neurological deterioration would be of little benefit. However, SCP seems to protect the brain against S100β release as effectively as conventional CPB.engSpringer-Verlag Tokyo Inc.The original publication is available at www.springerlink.comS-100β proteinJugular veinSelective cerebral perfusionAortic arch aneurysmExtracerebral contaminationArterio-jugular Differences in Serum S-100β Proteins in Patients Receiving Selective Cerebral Perfusionarticle (author version)國原, 孝493.23Surgery Today0941-129136161110.1007/s00595-005-3105-516378186北海道大学病院 (Hokkaido University Hospital)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9842022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Kuranishi, T.Habazaki, H.Konno, H.2006-02-07T09:56:25Z2004-10-12http://hdl.handle.net/2115/984Diffusion barrier layers of anodic alumina, introduced between an oxidation-resistant Al-Nb-Cr alloy and γ-TiAl substrate, have been evaluated using scanning electron microscopy and electron probe microanalysis. Diffusion of titanium to the Al-Nb-Cr coating is obvious when the Al-Nb-Cr alloy coated directly on the TiAl substrate is oxidized at 900°C for 168 h. The anodic alumina layer has been introduced by sputter-depositing aluminum and subsequent anodizing of the aluminum layer at a constant current density in 0.01 mol dm-3 ammonium pentaborate electrolyte at 298 K. Then, the Al-Nb-Cr alloy is further sputter-deposited on the anodized specimens. It is clearly demonstrated that the thin anodic alumina layer, less than 500 nm thick, suppresses effectively the inter-diffusion between the oxidation-resistant alloy coating and the TiAl substrate, particularly when a thin aluminum layer is remained beneath the anodic alumina. Although microcracks are generated and the substrate is oxidized through the cracked regions for the coatings that contain the metallic aluminum layer, the oxidation of the substrate through the cracks is prevented by pre-oxidation treatment at 800°C.engElsevier B.V.http://www.sciencedirect.com/science/journal/02578972anodic aluminatitanium aluminideshigh temperature oxidationinter-diffusionsputter-depositionOxidation-resistant multilayer coatings using an anodic alumina layer as a diffusion barrier on γ-TiAl substratesarticle (author version)幅崎, 浩樹565Surface and Coatings Technology0257-897220072438244410.1016/j.surfcoat.2004.08.211工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9862022-11-17T02:08:08Zhdl_2115_20056hdl_2115_147Ohdachi, S. D.Abe, H.Oh, H. S.Han, S. H.2006-02-07T23:37:06Z2005-10-05http://hdl.handle.net/2115/986We investigated the morphological relationships among 8 populations of Sorex caecutiens/shinto group in East Asia using 11 cranial and dental characters and four external characters. Univariate and multivariate analyses of these characters failed to distinguish S. caecutiens and S. shinto. Morphological characters were, in fact, continuous between populations. Sorex shinto from Honshu was similar to S. caecutiens from the Korean peninsula and Primorye in skull dimensions and to S. caecutiens from Hokkaido-Sakhalin in external dimensions. Sorex caecutiens from Cheju Island is morphologically similar to S. shinto from Sado and Shikoku islands. These three insular populations were characterized by having large body size. Sorex caecutiens from Cheju was the largest of the S. caecutiens/shinto group in East Asia. This shrew from Cheju was classified definitively as S. caecutiens on DNA data but has a unique morphology among S. caecutiens populations in East Asia. We therefore regard this Sorex shrew on Cheju Island as a new subspecies of S. caecutiens and designate it S. c. hallamontanus ABE et OH.engElsevier GmbHhttp://www.sciencedirect.com/science/journal/16165047Sorex caecutiens hallamontanusChejuKoreaGeographic variationMorphological relationships among populations in the Sorex caecutiens/shinto group (Eulipotyphla, Soricidae) in East Asia, with a description of a new subspecies from Cheju Island, Koreaarticle (author version)大舘, 智志489.41Mammalian Biology - Zeitschrift fur Saugetierkunde1616-504770634535810.1016/j.mambio.2005.06.004低温科学研究所 (Institute of Low Temperature Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9852023-05-22T02:26:03Zhdl_2115_20039hdl_2115_116Rajapakse, SanathOgiwara, KatsuekiTakano, NaoharuMoriyama, AkihikoTakahashi, Takayuki2006-02-07T23:29:44Z2005-12-01http://hdl.handle.net/2115/985Human kallikrein 8 (KLK8) is a member of the human kallikrein gene family of serine proteases, and its protein, hK8, has recently been suggested to serve as a new ovarian cancer marker. To gain insights into the physiological role of hK8, the active recombinant enzyme was obtained in a pure state for biochemical and enzymatic characterizations. hK8 had trypsin-like activity with a strong preference for Arg over Lys in the P1 position, and its activity was inhibited by typical serine protease inhibitors. The protease degraded casein, fibronectin, gelatin, collagen type IV, fibrinogen, and high-molecular-weight kininogen. hK8 also converted human single-chain tissue-type plasminogen activator (65 kDa) to its two-chain form (32 and 33 kDa) by specifically cleaving the peptide bond Arg275–Ile276. This conversion resulted in a drastic increase in the activity of the activator toward the fluorogenic substrate Pyr-Gly-Arg-MCA and plasminogen in the absence of fibrin. Our findings suggest that hK8 may be implicated in ECM protein degradation in the area surrounding hK8-producing cells.engElsevier B.V.http://www.sciencedirect.com/science/journal/00145793Human kallikrein 8Enzymatic characterizationExtracellular matrix proteinsTissue-type plasminogen activatorBiochemical characterization of human kallikrein 8 and its possible involvement in the degradation of extracellular matrix proteinsarticle (author version)高橋, 孝行464Febs Letters0014-5793579306879688410.1016/j.febslet.2005.11.03916337200理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9872022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Saitoh, KunimasaTsuchida, YukihiroKoshiba, Masanori2006-02-07T23:46:02Z2005http://hdl.handle.net/2115/987In this paper we evaluate the cut-off properties of holey fibers (HFs) with a triangular lattice of air holes and the core formed by the removal of a single (HF1) or more air holes (HF3 and HF7). With the aid of finite-element simulations we determine the single-mode and multi-mode phases and also find the air hole diameters limiting the endlessly singlemode regime. From calculations of V and W parameters we find that in general HF1 is less susceptible to longitudinal non-uniformities compared to the other designs for equivalent effective areas. As an example we illustrate this general property for the particular case of a macro-bending induced loss.engOptical Society of America© 2005 Optical Society of America, Inc.Endlessly single-mode holey fibers: the influence of core designarticle (author version)斉藤, 晋聖547Optics Express1094-408713261083310839情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9882022-11-17T02:08:08Zhdl_2115_20058hdl_2115_149Zhao, WenliDarmanin, StephanieFu, QiangChen, JianCui, HongyanWang, JingxinOkada, FutoshiHamada, Jun-ichiHattori, Yuu-ichiKondo, TakeshiHamuro, JunjiAsaka, MasahiroKobayashi, Masanobu2006-02-07T23:49:28Z2005-12-31http://hdl.handle.net/2115/988As most solid tumors are hypoxic, dendritic cells (DC) in solid tumors are also exposed to hypoxia. While many adaptation responses of tumor cells to hypoxia are known, it is yet to be determined how hypoxia affects the functions of DC. To explore the effects of hypoxia on the functions of DC, we compared the expression of surface markers, cytokines, chemokine receptors and matrix metalloproteinases (MMP) of human monocyte-derived DC (hmDC) differentiated under hypoxia to those differentiated under normoxia. Both groups of hmDC expressed similar levels of surface markers and cytokines. However, expression of MMP-9 and membrane type-1-MMP, as well as migrating activity, was significantly suppressed in hmDC differentiated under hypoxia compared with their normoxia counterparts. We also demonstrated that trichostatin A restored the production of MMP-9 in hmDC, under hypoxia. Collectively, our findings show that a hypoxic microenvironment suppresses the production of MMP in hmDC, most probably through the deacetylation of promoter regions of MMP, thus suppressing the migrating activity of hmDC. Our results suggest that the hypoxic microenvironment in solid tumor tissues may suppress the function of DCengWILEY-VCH Verlag GmbH & Co. KGaA, Weinheimhttp://www.interscience.wiley.com/Dendritic cellHypoxiaMatrix metalloproteinaseMigrationHypoxia suppresses the production of matrix metalloproteinases and migration of human monocyte-derived dendritic cellsarticle (author version)小林, 正伸491.65European Journal of Immunology0014-298035123468347710.1002/eji.20052626216259004遺伝子病制御研究所 (Institute for Genetic Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9892022-11-17T02:08:08Zhdl_2115_20040hdl_2115_121Omoteyama, KazukiIkeda, HiromiImaki, JunkoSakai, Masaharu2006-02-07T23:54:35Z2005-12-05http://hdl.handle.net/2115/989The Maf family of transcription factors is expressed during development of various organs and tissues, and is involved in a variety of developmental and cellular differentiation processes. We previously found that c-maf and mafB are strongly expressed in hypertrophic chondrocytes during cartilage development. Connective tissue growth factor (CTGF) is also expressed in hypertrophic chondrocytes. Adenovirus mediated introduction of c-maf gene into the mouse fibroblast cell line C3H10T1/2 strongly induced CTGF expression. CTGF can be induced by TGF-β via the SMAD pathway; however, the c-Maf could not induce TGF-β, nor could TGF-β induce the c-Maf, suggesting that activation of CTGF by Maf is TGF-β independent. Reporter transfection analysis using C3H10T1/2 cells shows that c-Maf stimulates a CTGF reporter gene. Lc-Maf, a splice variant of c-Maf containing an extra 10 amino acids in the carboxyl terminus, was a stronger inducer of the CTGF reporter gene than c-Maf. Chromatin immunoprecipitation analysis showed that c-Maf binds to the promoter region of the CTGF gene, indicating that Maf directly activates the CTGF gene. Gel mobility shift assays indicated that c-Maf binds to the region near the transcription initiation site of CTGF gene. Taken together, these data indicate that the CTGF gene is a target of c-Maf and Lc-Maf in cartilage development.engElsevier Inc.http://www.sciencedirect.com/science/journal/0006291Xc-MafLc-MafCTGFHypertrophic chondrocyteDifferentiationTranscription controlActivation of connective tissue growth factor gene by the c-Maf and Lc-Maf transcription factorsarticle (author version)酒井, 正春491.31Biochemical and Biophysical Research Communications0006-291X33941089109710.1016/j.bbrc.2005.11.11916343439医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9922022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Tsuchida, YukihiroSaitoh, KunimasaKoshiba, Masanori2006-02-08T06:52:24Z2005-06-13http://hdl.handle.net/2115/992As the fiber-to-the-home network construction increased, optical fiber cables are demanded to be easier to handle and require less space. Under this situation, a single mode fiber (SMF) permitting small bending radius is strongly requested. In this paper, we propose and demonstrate a novel type of bending-insensitive single-mode holey fiber which has a doped core and two layers of holes with different air-hole diameters. The fiber has a mode field diameter of 9.3 μm at 1.55 μm and a cutoff wavelength below 1.1 μm, and shows a bending loss of 0.011 dB/turn at 1.55 μm for bending radius of 5 mm and a low splice loss of 0.08 dB per fusion-splicing to a conventional SMF.engOptical Society of America© 2005 Optical Society of America, Inc.Design and characterization of single-mode holey fibers with low bending lossesarticle (author version)斉藤, 晋聖547Optics Express1094-4087131247704779情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9912022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Mizuta, YoNagasawa, MinoruOhtani, MorimasaYamashita, Mikio2006-02-08T06:48:34Z2005-12-06http://hdl.handle.net/2115/991A numerical approach called Fourier direct method (FDM) is applied to nonlinear propagation of optical pulses with the central wavelength 800 nm, the width 2.67–12.00 fs, and the peak power 25–6870 kW in a fused-silica fiber. Bidirectional propagation, delayed Raman response, nonlinear dispersion (self-steepening, core dispersion), as well as correct linear dispersion are incorporated into "bidirectional propagation equations" which are derived directly from Maxwell's equations. These equations are solved for forward and backward waves, instead of the electric-field envelope as in the nonlinear Schrödinger equation (NLSE). They are integrated as multidimensional simultaneous evolution equations evolved in space. We investigate, both theoretically and numerically, the validity and the limitation of assumptions and approximations used for deriving the NLSE. Also, the accuracy and the efficiency of the FDM are compared quantitatively with those of the finite-difference time-domain numerical approach. The time-domain size 500 fs and the number of grid points in time 2048 are chosen to investigate numerically intensity spectra, spectral phases, and temporal electric-field profiles up to the propagation distance 1.0 mm. On the intensity spectrum of a few-optical-cycle pulses, the self-steepening, core dispersion, and the delayed Raman response appear as dominant, middle, and slight effects, respectively. The delayed Raman response and the core dispersion reduce the effective nonlinearity. Correct linear dispersion is important since it affects the intensity spectrum sensitively. For the compression of femtosecond optical pulses by the complete phase compensation, the shortness and the pulse quality of compressed pulses are remarkably improved by the intense initial peak power rather than by the short initial pulse width or by the propagation distance longer than 0.1 mm. They will be compressed as short as 0.3 fs below the damage threshold of fused-silica fiber 6 MW. It is demonstrated that the carrier envelope phase (CEP) causes the difference on the temporal electric-field profile and the intensity spectrum for the initial peak power of the order of megawatts. At the propagation distance longer than the coherence length for third-order harmonics, the difference grows in the spectral components around the third-order and higher-order harmonics. The CEP can be a sensitive marker to monitor the evolution of nonlinear optical process by a few-optical-cycle electric-field wave-packet source.engThe American Physical Societyhttp://www.aps.org/Copyright © 2005 The American Physical SocietyNonlinear propagation analysis of few-optical-cycle pulses for subfemtosecond compression and carrier envelope phase effectarticle水田, 洋431.5Physical Review A7206380210.1103/PhysRevA.72.063802工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9902023-07-14T02:23:43Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-02-08T06:44:08Z2005-06http://hdl.handle.net/2115/990jpn宗教と社会学会宗教の社会的貢献 : その条件と社会環境をめぐる比較宗教・社会論的考察article (author version)Sakurai, Yoshihide161宗教と社会1342-472611163184文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9932022-11-17T02:08:08Zhdl_2115_20070hdl_2115_157Hisano, HiroshiKanazawa, AkiraKawakami, AkiraYoshida, MidoriShimamoto, YoshiyaYamada, Toshihiko2006-02-08T08:48:05Z2004-07-14http://hdl.handle.net/2115/993The accumulation of fructan in grasses during autumn is linked to winter hardiness. Genetic manipulation of the accumulation of fructan could be an important molecular breeding strategy for the improvement of winter hardiness in grasses. We produced transgenic perennial ryegrass (Lolium perenne) plants that overexpress wheat fructosyltransferase genes, wft1 and wft2, which encode sucrose–fructan 6-fructosyltransferase (6-SFT) and sucrose–sucrose 1-fructosyltransferase (1-SST), respectively, under the control of CaMV 35S promoter using a particle bombardment-mediated method of transformation. Significant increases in fructan content were detected in the transgenic perennial ryegrass plants. A freezing test using the electrical conductivity method indicated that transgenic plants that accumulated a greater amount of fructan than non-transgenic plants have increased tolerance on a cellular level to freezing. The results suggest that the overexpression of the genes involved in fructan synthesis serves as a novel strategy to produce freezing-tolerant grasses.engElsevier Ireland Ltd.http://www.sciencedirect.com/science/journal/01689452Freezing toleranceFructanLolium perenneTransgenic plantsTransgenic perennial ryegrass plants expressing wheat fructosyltransferase genes accumulate increased amounts of fructan and acquire increased tolerance on a cellular level to freezingarticle (author version)山田, 敏彦615Plant Science0168-9452167486186810.1016/j.plantsci.2004.05.037北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9942022-11-17T02:08:08Zhdl_2115_20070hdl_2115_157Cogan, N. O. I.Smith, K. F.Yamada, T.Francki, M. G.Vecchies, A. C.Jones, E. S.Spangenberg, G. C.Forster, J. W.2006-02-08T08:49:24Z2005http://hdl.handle.net/2115/994Genetic control of herbage quality variation was assessed through the use of the molecular marker-based reference genetic map of perennial ryegrass (Lolium perenne L.). The restriction fragment length polymorphism (RFLP), amplified fragment length polymorphism (AFLP) and genomic DNA-derived simple sequence repeat-based (SSR) framework marker set was enhanced, with RFLP loci corresponding to genes for key enzymes involved in lignin biosynthesis and fructan metabolism. Quality traits such as crude protein (CP) content, estimated in vivo dry matter digestibility (IVVDMD), neutral detergent fibre content (NDF), estimated metabolisable energy (EstME) and water soluble carbohydrate (WSC) content were measured by near infrared reflectance spectroscopy (NIRS) analysis of herbage harvests. Quantitative trait locus (QTL) analysis was performed using single-marker regression, simple interval mapping and composite interval mapping approaches, detecting a total of 42 QTLs from six different sampling experiments varying by developmental stage (anthesis or vegetative growth), location or year. Coincident QTLs were detected on linkage groups (LGs) 3, 5 and 7. The region on LG3 was associated with variation for all measured traits across various experimental datasets. The region on LG7 was associated with variation for all traits except CP, and is located in the vicinity of the lignin biosynthesis gene loci xlpomt1 (caffeic acid-O-methyltransferase), xlpccr1 (cinnamoyl CoA-reductase) and xlpssrcad 2.1 (cinnamyl alcohol dehydrogenase). Comparative genomics analysis of these gene classes with wheat (Triticum aestivum L.) provides evidence for conservation of gene order over evolutionary time and the basis for cross-specific genetic information transfer. The identification of co-location between QTLs and functionally associated genetic markers is critical for the implementation of marker-assisted selection programs and for linkage disequilibrium studies, which will enable future improvement strategies for perennial ryegrass.engSpringer-Verlag GmbHThe original publication is available at www.springerlink.comPerennial ryegrassGenetic mapHerbage qualityQuantitative trait locusFunctionally-defined geneLigninQTL analysis and comparative genomics of herbage quality traits in perennial ryegrass (Lolium perenne L.)article (author version)山田, 敏彦615TAG Theoretical and Applied Genetics0040-5752110236438010.1007/s00122-004-1848-9北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9952022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Ohshima, IsseiYoshizawa, Kazunori2006-02-10T01:15:49Z2005-07-20http://hdl.handle.net/2115/995Insect herbivores such as gall formers and leaf miners are often highly specialized and adapted to their respective natal host plants. Due to the specialization and adaptation, it is presumed that host shifts readily occur among closely related plant species. Leaf-mining moths, the Acrocercops leucophaea complex, consist of three species, A. leucophaea, A. defigurata, and A. transecta. Larvae of all the species of the complex feed on Juglandaceae plants, but A. leucophaea and A. transecta are also associated with an Ericaceae plant, which is quite distantly related to Juglandaceae. Such a host utilization as in this species complex is very rare among phytophagous insects. In the present study, we estimate the history of host shifts by reconstructing the phylogeny of the A. leucophaea complex using molecular data (partial sequence of mitochondrial COI, 12S rDNA, and ND5). Parsimony and maximum likelihood analyses indicated that the common ancestor of the A. leucophaea complex used Juglandaceae only, and that the association with Ericaceae has evolved in A. leucophaea and A. transecta independently. Parametric bootstrap analysis also supported multiple origins of the association with Ericaceae in this complex. These results imply that there are ecological and biochemical factors that promote host shifting between Juglandaceae and Ericaceae despite the two families being not closely related.engElsevier Inc.http://www.sciencedirect.com/science/journal/10557903Phytophagous insectsInsect–plant interactionsHost shiftHost raceSpeciationMitochondrial DNAPhylogenyMultiple host shifts between distantly related plants, Juglandaceae and Ericaceae, in the leaf-mining moth Acrocercops leucophaea complex (Lepidoptera: Gracillariidae)article (author version)大島, 一正615.8Molecular Phylogenetics and Evolution1055-790338123124010.1016/j.ympev.2005.06.01016039148Accepted Version農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9962022-11-17T02:08:08Zhdl_2115_20044hdl_2115_124Ishiyama, HaruakiNakamura, YoichiKobayashi, Jun'ichi2006-02-10T01:23:19Z2005-10-25http://hdl.handle.net/2115/996An asymmetric synthesis of a diastereomer (2) of the structure (1) proposed for amphidinolide A, a cytotoxic macrolide from the cultured dinoflagellate Amphidinium sp., has been accomplished. The absolute configuration of amphidinolide A was established as 3 from comparison of NMR data, HPLC analysis, and [α]D values of amphidinolide A, and comparison with the synthetic diastereomers 2 and 3, the latter of which was synthesized previously by Trost's group.engElsevier Ltdhttp://www.sciencedirect.com/science/journal/00404020Amphidinium spMacrolideAmphidinolide AAbsolute configurationAsymmetric synthesis of a diastereomer of the structure proposed for amphidinolide A and the determination of its absolute configurationarticle (author version)小林, 淳一499Tetrahedron0040-402062116617010.1016/j.tet.2005.09.120薬学研究院 (Faculty of Pharmaceutical Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9972022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Ikawa, Shun-ichi2006-02-10T01:28:16Z2005-12-29http://hdl.handle.net/2115/997Molecular-dynamics simulations of water-benzene mixtures at 573 K and pressures in the 85–140 bars range have been performed to examine local structure and dynamics of the mixtures, which exhibit anomalously large volume expansion on mixing as recently found by in situ near-infrared measurements. Fractional charges for a simple-point-charge-type potential of water were adjusted so as to reproduce liquid densities and the gas-to-liquid transition pressure of neat water at 573 K. A Lennard-Jones-type potential for benzene was used and the Lorentz-Berthelot combination rule was applied to the water-benzene interaction. Simulations with a N-P-T ensemble of 800-molecule system have been performed and the results reproduce well the anomalous volumetric behavior of the mixtures with the mole fraction of benzene in the 0.3–0.8 range. Pair distribution functions, coordination numbers, and self-diffusion coefficients for the mixtures are calculated, and it is suggested that the local structure around water molecules undergoes drastic change by dissolution of benzene in the vicinity of the critical region, but that around benzene molecules seems to be understood as that of ordinary liquid mixtures.engAmerican Institute of Physicshttp://www.aip.org/Copyright © 2005 American Institute of PhysicsMolecular-dynamics study of anomalous volumetric behavior of water-benzene mixtures in the vicinity of the critical regionarticle井川, 駿一431The Journal of Chemical Physics0021-960612324450710.1063/1.214574916396549理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/10002023-07-26T01:56:16Zhdl_2115_20038hdl_2115_123濱田, 康行2006-02-10T01:38:06Z2006http://hdl.handle.net/2115/1000jpn時事通信社ミールカードcolumn (author version)365.85農林経済97571経済学院・経済学研究院 (Graduate School of Economics and Business / Faculty of Economics and Business)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9982022-11-17T02:08:08Zhdl_2115_20070hdl_2115_157Guo, YangdongMizukami, YukoYamada, Toshihiko2006-02-10T01:32:02Z2005http://hdl.handle.net/2115/998The definitive version is available at www.blackwell-synergy.comA successful androgenesis in amphidiploid Festulolium (Lolium perenne L. x Festuca pratensis Huds., 2n=4x=28) was obtained using PG-96 medium for embryo/callus induction. The green plant regeneration varied, and was 46 %, 35 % and 17 % for Bx350, Bx351 and Prior, respectively and over 800 green plants have been obtained. Androgenic progeny showed a large variation in freezing tolerance, 7 % of 292 progeny exceeding that of freezing hardy F. pratensis despite containing chromosomes of L. perenne, a more freezing-sensitive species. More than 60% of flowering 175 progeny produced dehiscent anthers with pollen stainability ranging from 5% to 85%.
Androgenic plants contained 14 or 28 chromosomes. There were 188 (56 %), 204 (77 %) and 114 dihaploids (81 %) from Bx350, Bx351 and Prior, respectively. However, the nuclear DNA content varied significantly even between plants with the same chromosome number. Variation in DNA content reflected the genetic variation inherent in androgenic populations.
High levels of chromosome pairing and recombination were observed due to close homology between genomes of L. perenne and F. pratensis.engBlackwell Science LtdAndrogenesisFestuloliumForage grassfreezing toleranceGenome sizeGenomic in situ hybridisation (GISH)pollen fertilityGenetic characterization of androgenic progeny derived from Lolium perenne x Festuca pratensis cultivarsarticle (author version)山田, 敏彦615New Phytologist0028-646X166245546410.1111/j.1469-8137.2005.01345.x1469-8137北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/9992022-11-17T02:08:08Zhdl_2115_20070hdl_2115_157Momotaz, AliyaForster, John W.Yamada, Toshihiko2006-02-10T01:36:38Z2003http://hdl.handle.net/2115/999The definitive version is available at www.blackwell-synergy.comMolecular diversity and genetic affinity in the Lolium/Festuca grass complex have been assessed using simple sequence repeat (SSR) marker technology. The genotypic set was derived from three accessions of Lolium perenne, two cultivars of Lolium multiflorum, two cultivars of Festuca pratensis, two cultivars of Festuca arunidinacea and ten accessions from different intergeneric hybrid (Festulolium) combinations. The majority of the genomic DNA-derived SSR primer pairs from perennial ryegrass (LPSSR) and Italian ryegrass (LMSSR) produced clear, simple and distinctive amplification products from the majority of the genotypes. The efficiency of cross-specific amplification for LPSSR markers varied from 38% in F. pratensis to 93% in two cultivars of Festulolium and for LMSSR markers from 57% in F. pratensis to 87% in L. multiflorum. Of 40 amplified markers, fourteen (35%) produced species-difference alleles in the relation to cultivars used in the present study. Thirty-five LPSSR locus-derived alleles were found to be specific to Lolium species, 4 to F. pratensis and 6 to F. arundinacea. For LMSSR alleles, 8 were specific to Lolium species and 5 were only associated with L. multiflorum, and null alleles were detected for F. pratensis in all instances. These species-difference markers could clearly identify different accessions of Festulolium. Cluster analysis separated the individual taxa and showed grouping of intergeneric hybrids based on genomic composition. The data distinguished between the species and reflected the known pedigree of the cultivars and the differences between the species. The dendrogram also distinguished between the Festulolium accessions and clearly demonstrated the relations between Festulolium hybrids and their parent species.engBlackwell VerlagFestuca arundinaceaF. pratensisFestuloliumLolium multiflorumL. perenneLolium/Festuca complexgenetic diversitySSR markerIdentification of cultivars and accessions of Lolium, Festuca and Festulolium hybrids through the detection of simple sequence repeat (SSR) polymorphismarticle (author version)山田, 敏彦615Plant Breeding123437037610.1111/j.1439-0523.2004.00962.x北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/10012023-07-14T02:24:20Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-02-10T06:43:47Z2005http://hdl.handle.net/2115/1001jpn北海道大学文学研究科「カルト」問題と社会秩序(2) : 脱会カウンセリングと信教の自由article (author version)Sakurai, Yoshihide169北海道大学文学研究科紀要1346-0277117109157文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/10022023-07-14T02:25:45Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-02-10T06:44:46Z2005http://hdl.handle.net/2115/1002jpn北海道大学高等教育機能開発総合センター高等教育の発展戦略と教育課題 : タイとオーストラリアのコラボレーションarticle (author version)Sakurai, Yoshihide372高等教育ジャーナル : 高等教育と生涯学習1341-9374138193文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/10032022-11-17T02:08:08Zhdl_2115_20070hdl_2115_157YAMADA, T.KISHIDA, T.2006-02-10T06:45:58Z2002http://hdl.handle.net/2115/1003The definitive version is available at www.blackwell-synergy.comGenetic polymorphism within and between three species of forage grasses; perennial ryegrass (Lolium perenne L.), meadow fescue (Festuca pratensis Huds.) and tall fescue (Festuca arundinacea Schreb.) was analyzed using RFLP markers detected by rice cDNA probes developed in the Rice Genome Research Program of Japan (RGP). One hundred and ninety seven rice cDNA clones were used for hybridization to genomic DNA of forage grasses. Many of the rice cDNA clones produced no visible band or a smear with no discrete bands. Twenty three clones showed high efficiency cross-hybridization to the genomic DNA of forage grasses. Genetic variation was evaluated for five varieties and one population of forage grasses using twelve polymorphic rice cDNA RFLP probes. Genetic variability within varieties as measured by Rogers’ genetic distance was considerably lower for the F. pratensis variety ‘Tomosakae’ than for the L. perenne and F. arundinacea varieties. To determine genetic diversity between varieties of different species, cluster analysis was performed using data from the twelve RFLP probes. The two accessions of Lolium perenne were clustered more closely together than the three varieties of F. arundinacea. Two Japanese varieties of F. arundinacea were grouped in the same cluster. The variety-specific RFLP markers were observed among six accessions of L. perenne, F. pratensis and F. arundinacea. Such variety-specific RFLP markers would provide very useful tools for breeding programs such as intergeneric hybridization of Lolium and Festuca genera.engBlackwell VerlagFestuca arundinaceaFestuca pratensisLoliumperennegenetic variabilityRFLPrice genomeGenetic analysis of forage grasses based on heterologous RFLP markers detected by rice cDNAsarticle (author version)山田, 敏彦615Plant Breeding1221576010.1046/j.1439-0523.2003.00773.x北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/10052023-07-14T02:26:05Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-02-10T10:14:25Z2004http://hdl.handle.net/2115/1005jpn北海道大学大学院文学研究科社会システム科学講座現代タイ社会論の課題 : 「共同体文化論」「市民社会論」をめぐってarticle (author version)Sakurai, Yoshihide361現代社会の社会学的地平 : 小林甫教授退官記念論文集6075文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/10062023-07-14T02:26:28Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-02-10T10:15:01Z2004http://hdl.handle.net/2115/1006jpn北海道大学カルト問題と社会秩序(1) : 麻原判決とオウム報道article (author version)Sakurai, Yoshihide169.1文学研究科紀要1346-0277114163221文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/10072023-07-14T02:26:52Zhdl_2115_20032hdl_2115_122櫻井, 義秀2006-02-10T10:16:14Z2004http://hdl.handle.net/2115/1007jpn北海道大学高等教育機能開発総合センター宗教情報教育の可能性 : 「カルト」団体によるキャンパス内勧誘行為を考えるarticle (author version)Sakurai, Yoshihide169高等教育ジャーナル : 高等教育と生涯学習1341-9374125160文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/13902022-11-17T02:08:08Zhdl_2115_20039hdl_2115_116Arai, Asao2006-02-15T05:35:33Z2005http://hdl.handle.net/2115/1390Reprinted from Publication, Reviews in Mathematical Physics, Vol 17-9, Arai, A, Generalized Weak Weyl Relation and Decay of Quantum Dynamics, p.1071-1109, c2005, with permission from World Scientific Publishing Co. Pte. Ltd, SingaporeLet $H$ be a self-adjoint operator on a Hilbert space $\mathcal{H}, T$ be a symmetric operator on $\mathcal{H}$ and $K(t)$ $(t∈\mathbb{R})$ be a bounded self-adjoint operator on $\mathcal{H}$. We say that $(T,H,K)$ obeys the generalized weak Weyl relation (GWWR) if $e^{-itH} D(T)⊂D(T)$ for all $t∈\mathbb{R}$ and $Te^{-itH}ψ=e^{-itH}(T+K(t))ψ,∀ψ∈D(T)$ ( $D(T)$ denotes the domain of $T$). In the context of quantum mechanics where $H$ is the Hamiltonian of a quantum system, we call $T$ a generalized time opeartor of $H$. We first investigate, in an abstract framework, mathematical structures and properties of triples $(T,H,K)$ obeying the GWWR. These include the absolute continuity of the spectrum of $H$ restricted to a closed subspace of $\mathcal{H}$, an uncertainty relation between $H$ and $T$ (a "time-energy uncertainty relation"), the decay property of transition probabilities $|<ψ, e^{-itH}φ>|^2$ as $|t|→∞$ for all vectors $ψ$ and $φ$ in a subspace of $\mathcal{H}$, where $<・,・>$, denotes the inner product of $\mathcal{H}$. We describe methods to construct various examples of triples $(T,H,K)$ obeying the GWWR. In particular we show that there exist generalized time operators of second quantization operators on Fock spaces (full Fock spaces, boson Fock spaces, fermion Fock spaces) which may have applications to quantum field models with interactions.engWorld Scientific PublishingGeneralized weak Weyl relationtime operatorcanonical commutation relationHamiltonianquantum dynamicssurvival probabilitydecay in timetime-energy uncertainty relationSchrodinger operatorDirac operatorFock spacesecond quantizationGeneralized Weak Weyl Relation and Decay of Quantum Dynamicsarticle (author version)421Reviews in Mathematical Physics0129-055X1791071110910.1142/S0129055X05002479理学院・理学研究院 (Graduate School of Science / Faculty of Science)雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
oai:eprints.lib.hokudai.ac.jp:2115/12152019-04-25T04:38:18Zhdl_2115_1008hdl_2115_1004hdl_2115_139吉田, 綾2006-02-10T12:30:16Z2004-10-31http://hdl.handle.net/2115/1215第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 国境を越える環境問題 (企画セッション1) . 発表番号1jajpn北海道大学衛生工学会"廃棄物"の越境移動と国際的な"資源"リサイクルの課題bulletin (article)518衛生工学シンポジウム論文集1214AN10486460吉田綾(東京大学大学院工学系研究科博士課程)01衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12162019-04-25T01:36:27Zhdl_2115_1008hdl_2115_1004hdl_2115_139速水, 洋2006-02-10T12:30:19Z2004-10-31http://hdl.handle.net/2115/1216第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 国境を越える環境問題 (企画セッション1) . 発表番号2jajpn北海道大学衛生工学会わが国西端から流入する大気汚染bulletin (article)518衛生工学シンポジウム論文集1258AN10486460速水洋(電力中央研究所大気科学部)02衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12172019-04-25T02:49:57Zhdl_2115_1008hdl_2115_1004hdl_2115_139深沢, 達矢2006-02-10T12:30:21Z2004-10-31http://hdl.handle.net/2115/1217第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 国境を越える環境問題 (企画セッション1) . 発表番号3jajpn北海道大学衛生工学会北極圏に届く化学物質bulletin (article)518衛生工学シンポジウム論文集12912AN10486460深沢達矢(北海道大学大学院工学研究科)03衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12182019-04-25T03:24:06Zhdl_2115_1008hdl_2115_1004hdl_2115_139乗木, 新一郎2006-02-10T12:30:22Z2004-10-31http://hdl.handle.net/2115/1218第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 国境を越える環境問題 (企画セッション1) . 発表番号4jajpn北海道大学衛生工学会沿岸域から外洋域への物質移動bulletin (article)518衛生工学シンポジウム論文集12AN10486460乗木新一郎(北海道大学大学院地球環境科学研究科)04衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12192019-04-25T01:09:17Zhdl_2115_1008hdl_2115_1004hdl_2115_139中津川, 誠2006-02-10T12:30:24Z2004-10-31http://hdl.handle.net/2115/1219第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 北海道における水環境保全 復元 (企画セッション2) . 発表番号1jajpn北海道大学衛生工学会豊平川流域の水循環と水環境 −豊平川と茨戸川について−bulletin (article)518衛生工学シンポジウム論文集121313AN10486460中津川誠(北海道開発土木研究所)05衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12202019-04-25T03:12:47Zhdl_2115_1008hdl_2115_1004hdl_2115_139奥平, 恒望2006-02-10T12:30:25Z2004-10-31http://hdl.handle.net/2115/1220第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 北海道における水環境保全 復元 (企画セッション2) . 発表番号2jajpn北海道大学衛生工学会北海道における水環境改善について 〜苫小牧川と春採湖の取り組みbulletin (article)518衛生工学シンポジウム論文集122326AN10486460奥平恒望(北海道建設部河川課)06衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12212019-04-25T03:12:51Zhdl_2115_1008hdl_2115_1004hdl_2115_139菅原, 伸二2006-02-10T12:30:27Z2004-10-31http://hdl.handle.net/2115/1221第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 北海道における水環境保全 復元 (企画セッション2) . 発表番号3jajpn北海道大学衛生工学会サクシュ琴似川再生事業についてbulletin (article)518衛生工学シンポジウム論文集122730AN10486460菅原伸二(札幌市建設局土木部河川課)07衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12222019-04-25T00:38:14Zhdl_2115_1008hdl_2115_1004hdl_2115_139橘, 治国2006-02-10T12:30:29Z2004-10-31http://hdl.handle.net/2115/1222第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 北海道における水環境保全 復元 (企画セッション2) . 発表番号4jajpn北海道大学衛生工学会北海道の湿原と保全対策 −水質工学からのチャレンジ−bulletin (article)518衛生工学シンポジウム論文集123131AN10486460橘治国(北海道大学大学院工学研究科)08衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12232019-04-25T04:04:09Zhdl_2115_1008hdl_2115_1004hdl_2115_139小林, 拓原, 圭一郎矢吹, 正教塩原, 匡貴山内, 恭長田, 和雄太田, 幸雄2006-02-10T12:30:30Z2004-10-31http://hdl.handle.net/2115/1223第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 一般セッション . 1 大気 土壌環境 . 1-1jajpn北海道大学衛生工学会第42次日本南極地域観測隊におけるエアロゾル観測bulletin (article)518衛生工学シンポジウム論文集123336AN10486460小林拓(山梨大学)、原圭一郎、矢吹正教、塩原匡貴、山内恭(国立極地研究所)、長田和雄(名古屋大学),太田幸雄(北海道大学)09衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12242019-04-25T03:35:31Zhdl_2115_1008hdl_2115_1004hdl_2115_139片谷, 教孝福山, 明2006-02-10T12:30:32Z2004-10-31http://hdl.handle.net/2115/1224第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 一般セッション . 1 大気 土壌環境 . 1-2jajpn北海道大学衛生工学会PRTRデータの地域統計学的分析bulletin (article)518衛生工学シンポジウム論文集123740AN10486460片谷教孝、福山明(山梨大学)10衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12252019-04-25T04:38:21Zhdl_2115_1008hdl_2115_1004hdl_2115_139吉村, 英俊小林, 拓荒生, 公雄村山, 利幸五百旗頭, 健吾古賀, 隆治塩原, 匡貴2006-02-10T12:30:34Z2004-10-31http://hdl.handle.net/2115/1225第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 一般セッション . 1 大気 土壌環境 . 1-3jajpn北海道大学衛生工学会黄砂の光学的特性bulletin (article)518衛生工学シンポジウム論文集124144AN10486460吉村英俊、小林拓(山梨大学)、荒生公雄(長崎大学)、村山利幸(東京海洋大学)、五百旗頭健吾、古賀隆治(岡山大学)、塩原匡貴(国立極地研究所)11衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12262019-04-25T04:55:28Zhdl_2115_1008hdl_2115_1004hdl_2115_139藤田, 克也小林, 拓虎谷, 充浩福島, 甫松村, 皐月Absornsuda, Siripong2006-02-10T12:30:35Z2004-10-31http://hdl.handle.net/2115/1226第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 一般セッション . 1 大気 土壌環境 . 1-4jajpn北海道大学衛生工学会海色リモートセンシングのためのタイ湾船上観測bulletin (article)518衛生工学シンポジウム論文集124548AN10486460藤田克也、小林拓(山梨大学)、虎谷充浩、福島甫(東海大学)、松村皐月、Absornsuda Siripong(チュラロンコン大学)12衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
oai:eprints.lib.hokudai.ac.jp:2115/12272019-04-25T00:52:08Zhdl_2115_1008hdl_2115_1004hdl_2115_139平島, 邦人深澤, 達矢橘, 治国柴田, 英昭野村, 睦高木, 健太郎2006-02-10T12:30:37Z2004-10-31http://hdl.handle.net/2115/1227第12回衛生工学シンポジウム(平成16年11月4日(木)-5日(金) 北海道大学クラーク会館) . 一般セッション . 1 大気 土壌環境 . P1-5jajpn北海道大学衛生工学会中の峰平湿原における土壌中金属成分の鉛直成分bulletin (article)518衛生工学シンポジウム論文集124852AN10486460平島邦人、深澤達矢、橘治国(北海道大学)、柴田英昭、野村睦、高木健太郎(北海道大学北方生物圏フィールド科学センター)13衛生工学シンポジウム論文集工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering)第12回
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