検索結果 321 件
| 著者 | Adeleke Timothy, Ademora| Peter Olutola, Arawamo| |
|---|---|
| 発行日 | 2013-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 55巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/mjou/49103 |
| 著者 | Keskin Tütüncü, Derya| Kuratomi, Yosuke| |
|---|---|
| 発行日 | 2013-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 55巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/mjou/49099 |
| JaLCDOI | 10.18926/bgeou/49020 |
|---|---|
| タイトル（別表記） | The Changes in Physics Education in Upper Secondary Level in Germany - A Comparative Study between the Gymnasial Upper Stage in Saxony and the Extended Secondary School in East Germany |
| フルテキストURL | bgeou_151_081_091.pdf |
| 著者 | 田中 賢二| |
| 抄録 | ドイツ・ザクセン邦のギムナジウム上級段階と東ドイツの拡大オーベルシューレとに焦点 を当て，ほぼ30年を経た，いわば新旧指導要領などの比較考察から，後期中等教育段階の物 理教育の変遷を明らかにした。この新物理に至り，必修でなく選択教科や分野の設定，可能 な履修時間幅の拡大があり，目標も変容し，現代物理学の重視という変化もあり，生徒の興 味関心・教師の自由裁量を考慮・許容してきている。結局，イデオロギーの変化や科学技術 の発展に加えて，対象生徒数の増大に対応してきたといえるだろう。 |
| キーワード | 東ドイツ ザクセン邦 後期中等教育段階 物理教育 歴史的研究 |
| 出版物タイトル | 岡山大学大学院教育学研究科研究集録 |
| 発行日 | 2012-11-27 |
| 巻 | 151巻 |
| 開始ページ | 81 |
| 終了ページ | 91 |
| ISSN | 1883-2423 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120005053295 |
| 著者 | 馬 少博| |
|---|---|
| 発行日 | 2012-08-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 124巻 |
| 号 | 2号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | Sakamoto, Tomoaki| Tomioka, Kenji| |
|---|---|
| 発行日 | 2007-06 |
| 出版物タイトル | Zoological Science |
| 巻 | 24巻 |
| 号 | 6号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 綱島 義人| |
|---|---|
| 発行日 | 1928-12-31 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 40巻 |
| 号 | 12号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/47029 |
|---|---|
| フルテキストURL | mfe_36_2_083_089.pdf |
| 著者 | Watanabe, Tetsushi| Wada, Osami| Koga, Ryuji| Toyota, Yoshitaka| Miyashita, Takuya| |
| 抄録 | Suppression of common-mode current is important to achieve electromagnetic compatibility of high-speed and high-density electronic circuits. The authors have focused on the common mode current flowing on a printed circuit board (PCB) to explain the excitation mechanism. A narrow ground pattern in microstrip structure excites common-mode current. In the previous paper, the authors explained the mechanism of common mode generation by means of "current division factor" for simple PCBs. The estimated radiation from a simple PCB agreed well with measured one. In this paper, the authors extend the theory to be applied to generalize ground structure. The validity of the theory is confirmed by comparing the measured radiation and the estimated value using the common-mode model for a test PCB. The estimated radiation agrees well with the measured one within 3 dB up to 900 MHz. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2002-03 |
| 巻 | 36巻 |
| 号 | 2号 |
| 開始ページ | 83 |
| 終了ページ | 89 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120003497051 |
| JaLCDOI | 10.18926/47028 |
|---|---|
| フルテキストURL | mfe_36_2_073_082.pdf |
| 著者 | Hidayat, Iip Syarif| Toyota, Yoshitaka| Torigoe, Osamu| Wada, Osami| Koga, Ryuji| |
| 抄録 | A multi-path ring-resonator (MPRR) was proposed to extend FSR of ring resonator. However, it is complicated to analyze the MPRR by using well-known analysis techniques such as scattering matrix or other numerical methods. This paper describes procedure for deriving transfer matrix by means of signal flow-chart to analyze the MPRR. We do not need complicated calculation for steady state analysis because transfer matrix elements are formulated clearly. As a result, The calcultaion time in this method can be reduced 1/3 to 1/20 times compared with using scattering matirx method. Furthermore, a transmittance characteristics of the MPRR at FSR extension-factor of 10 will also be shown. This suggests that analysis of other types of the MPRR by using this method can be performed simply and take a shorter time. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2002-03 |
| 巻 | 36巻 |
| 号 | 2号 |
| 開始ページ | 73 |
| 終了ページ | 82 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120003497050 |
| JaLCDOI | 10.18926/AMO/47009 |
|---|---|
| フルテキストURL | 65_5_279.pdf |
| 著者 | Miyoshi, Ko| Kasahara, Kyosuke| Miyazaki, Ikuko| Asanuma, Masato| |
| 抄録 | Almost all mammalian cells carry one primary cilium that functions as a biosensor for chemical and mechanical stimuli. Genetic damages that compromise cilia formation or function cause a spectrum of disorders referred to as ciliapathies. Recent studies have demonstrated that some pharmacological agents and extracellular environmental changes can alter primary cilium length. Renal injury is a well-known example of an environmental insult that triggers cilia length modification. Lithium treatment causes primary cilia to extend in several cell types including neuronal cells;this phenomenon is likely independent of glycogen synthase kinase-3β inhibition. In renal epithelial cell lines, deflection of the primary cilia by fluid shear shortens them by reducing the intracellular cyclic AMP level, leading to a subsequent decrease in mechanosensitivity to fluid shear. Primary cilium length is also influenced by the dynamics of actin filaments and microtubules through the levels of soluble tubulin in the cytosol available for primary cilia extension. Thus, mammalian cells can adapt to the extracellular environment by modulating the primary cilium length, and this feedback system utilizing primary cilia might exist throughout the mammalian body. Further investigation is required concerning the precise molecular mechanisms underlying the control of primary cilium length in response to environmental factors. |
| キーワード | primary cilium length lithium cyclic AMP soluble tubulin intraflagellar transport |
| Amo Type | Review |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2011-10 |
| 巻 | 65巻 |
| 号 | 5号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 279 |
| 終了ページ | 285 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2011 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22037264 |
| Web of Science KeyUT | 000296116400001 |
| JaLCDOI | 10.18926/46979 |
|---|---|
| フルテキストURL | mfe_37_2_045_060.pdf |
| 著者 | Xu, Wei| Zhao, Y.| Horikane, T.| Hayata, T.| Tosuji, H.| Kagawa, Y.| |
| 抄録 | Resistivity distribution sounding of the non-homogeneous earth is important for electrical ground system design, geophysical prospecting and survey or monitoring the groundwater flow level. The previous paper presented that the direct inversion of the electric resistivity distribution in a domain is possible from the impedance data measured over the domain boundary using the dual reciprocity boundary element modelling in two-dimentional field [1]. The proposed inversion technique is extended to the distribution in three-dimensional space [2]. This technique is capable of inversion without iteration and meshing of the domain. Electric field with spatially varying conductivity is governed by Laplace equation, which is transformed into a Poisson-type expression with an inhomogeneous term involving the conductivity difference as a source term. Dual reciprocity method (DRM) is a technique for transforming the domain integral associated with the inhomogeneous term in Poisson equation into the boundary integral expression. The resistivity distribution in the field can thus be identified from the data observed over its boundary, for which some examples are demonstrated [2]. In this paper, the examination is extended to the case where only the data measured over the single surface is used for the inversion. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2003-03 |
| 巻 | 37巻 |
| 号 | 2号 |
| 開始ページ | 45 |
| 終了ページ | 60 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80016037881 |
| 著者 | 林 香苗| 奧山 美佐雄| |
|---|---|
| 発行日 | 1929-01-31 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 41巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 金岡 英雄| |
|---|---|
| 発行日 | 1934-10-31 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 46巻 |
| 号 | 10号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 河内 武| |
|---|---|
| 発行日 | 1935-10-31 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 47巻 |
| 号 | 10号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/AMO/43824 |
|---|---|
| フルテキストURL | 65_1_1.pdf |
| 著者 | Han, Xiao-Jian| Tomizawa, Kazuhito| Fujimura, Atsushi| Ohmori, Iori| Nishiki, Tei-ichi| Matsushita, Masayuki| Matsui, Hideki| |
| 抄録 | Mitochondria are important cellular organelles in most metabolic processes and have a highly dynamic nature, undergoing frequent fission and fusion. The dynamic balance between fission and fusion plays critical roles in mitochondrial functions. In recent studies, several large GTPases have been identified as key molecular factors in mitochondrial fission and fusion. Moreover, the posttranslational modifications of these large GTPases, including phosphorylation, ubiquitination and SUMOylation, have been shown to be involved in the regulation of mitochondrial dynamics. Neurons are particularly sensitive and vulnerable to any abnormalities in mitochondrial dynamics, due to their large energy demand and long extended processes. Emerging evidences have thus indicated a strong linkage between mitochondria and neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease and Huntington's disease. In this review, we will describe the regulation of mitochondrial dynamics and its role in neurodegenerative diseases. |
| キーワード | mitochondria phosphorylation ubiquitination SUMOylation neurodegeneration |
| Amo Type | Review |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2011-02 |
| 巻 | 65巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 1 |
| 終了ページ | 10 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2011 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 21339790 |
| Web of Science KeyUT | 000287620500001 |
| 著者 | 小坂 淳夫| 瀬戸 桂太郎| 堀尾 悟介| 正岡 千尋| 森本 嘉一| 難波 輝之| 今井 聖| 松葉 貢| 西村 惇| 谷水 規浩| 佐藤 三雄| 大成 章| 寺尾 正| 岩原 正雄| 日野 益雄| |
|---|---|
| 発行日 | 1954-12-30 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 66巻 |
| 号 | 12号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 香曾我部 芳夫| |
|---|---|
| 発行日 | 1955-01-31 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 67巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 河田 謙二| 立花 省吾| 山口 一男| |
|---|---|
| 発行日 | 1957-09-30 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 69巻 |
| 号 | 9号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/ESR/42458 |
|---|---|
| タイトル（別表記） | Comparison of large-scale cloud distribution and atmospheric fields around the Akisame (autumn rainfall) front in East Asia among 1993, 1994 and 1995 |
| フルテキストURL | esr_017_007_019.pdf |
| 著者 | 福田 維子| 加藤 内藏進| |
| 抄録 | In order to examine year-to-year variability of the Akisame (autumn rainfall) frontal zone in East Asia, large-scale cloud distribution and atmospheric fields around the frontal zone were compared among 1993, 1994 and 1995, when their characteristics were rather different among each other. While the Akisame frontal zone extended zonally and the deep convective clouds tended to appear in that frontal zone near the southern coast of the Japan Islands in 1993, the frontal zone extends from southwest to northeast and the large amount of precipitation was brought mainly in the northern Japan. In 1995, although the surface front on the weather maps appeared frequently also around the southern coast of the Japan Islands, the rainfall amount there was not so large. The area with frequent appearance of the deep convective clouds in the Akisame frontal zone was seen only to the east of the Japan Islands. As such, it is noted that the active area of the Akisame frontal zone shows rather large year-to-year variability also in the zonal direction. It is also suggested that such great variability of the Akisame frontal zone in the zonal direction seems to correspond to the variations of the subtropical high and the ITCZ in the western Pacific region around September. |
| キーワード | Akisame (autumn rainfall) front STFZ in early autumn year-to-year difference of Akisame front |
| 出版物タイトル | Okayama University Earth Science Report |
| 発行日 | 2010-12-24 |
| 巻 | 17巻 |
| 号 | 1号 |
| 開始ページ | 7 |
| 終了ページ | 19 |
| ISSN | 1340-7414 |
| 言語 | 日本語 |
| 著作権者 | © 2010 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| 論文のバージョン | publisher |
| NAID | 120002753316 |
| JaLCDOI | 10.18926/OER/41600 |
|---|---|
| フルテキストURL | oer_029_3_079_085.pdf |
| 著者 | 藤本 喬雄| |
| 抄録 | This note is to provide a bridge between traditional local analysis for comparative statics and its global counterpart. Many economists vaguely believe that it is possible to obtain a global result by applying consecutively a series of local results. This belief is not well founded in models where parameters enter in a not-so-simple way. An example is given to show that local analysis is after all local. In the proof of the first main theorem, a consecutive use of a well known local result is employed. Some necessary assumptions are explicitly stated. Then this theorem is applied to establish another main theorem in which a simple repetitive application of local analysis may break down because some required properties cease to hold. This two-stage approach seems to be useful in tackling with other types of equations. As an application of our theorems, a general equilibrium model with Hicksian imperfect stability is taken up. A comparative statics result due to Hicks is extended to the case of global changes. An interesting point to note is that when dealing with global comparative statics, the old system plays no explicit role. Only the new system matters together with the new and old equilibrium values. Understanding this point is important when we come to consider such real situations as involve technical changes in which new processes as well as new commodities turn up. |
| 出版物タイトル | 岡山大学経済学会雑誌 |
| 発行日 | 1997-12-10 |
| 巻 | 29巻 |
| 号 | 3号 |
| 開始ページ | 79 |
| 終了ページ | 85 |
| ISSN | 0386-3069 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 110000129908 |
| JaLCDOI | 10.18926/OER/41559 |
|---|---|
| フルテキストURL | oer_030_3_345_351.pdf |
| 著者 | Fujimoto, Takao| |
| 抄録 | This note is a sequel to the previous one published in this journal (Vol. 30, No.1). In that article, we used one of mean value theorems to prove the univalence of a nonlinear mapping based on the qualitative regularity ofthe Jacobian matrix. The qualitative regularity is a property of a matrix whose regularity is shown to be valid by using only the sign patterns of mappings involved. In this note, we extend the result into a vector space over an integral domain. The vectors themselves are of n-tuples of elements in the integral domain. This integral domain is totally ordered, and some natural properties are assumed concerning this order. First two lennnata are given, and the first one is in fact a sort of mean value theorem for mappings from a direct product of discrete spaces into a discrete space, and utilizes mathematical induction. The second lemma depends on the fact that theory of matrices and determinants can be constructed also on a ring except for inverse matrix. Finally, our main proposition derives from the very integrity of a given domain. Another merit of the result is that the domain of a mapping need not be convex, and can be even a set oflattice points. |
| 出版物タイトル | 岡山大学経済学会雑誌 |
| 発行日 | 1999-03-10 |
| 巻 | 30巻 |
| 号 | 3号 |
| 開始ページ | 345 |
| 終了ページ | 351 |
| ISSN | 0386-3069 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002696039 |