著者
湯川 進太郎
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2009-2011
著者
真栄城 哲也
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2009-2011
著者
Ikegami Yuki Kato Hisao Ueda Akihide
出版者
Elsevier
雑誌
Topology and its applications (ISSN:01668641)
巻号頁・発行日
vol.160, no.3, pp.564-574, 2013-02
被引用文献数
5 5

In this paper, we assume that dimensions mean the large inductive dimension Ind and the covering dimension dim. It is well known that View the MathML source for each metric space X. J. Kulesza (1995) [7] proved the theorem that every compact metric n-dimensional dynamical system with zero-dimensional set of periodic points can be covered by a compact metric zero-dimensional dynamical system via an at most (n+1)n-to-one map. In this paper, we generalize Kuleszaʼs theorem above to the case of arbitrary metric spaces, and improve the theorem. In fact, we prove that every metric n-dimensional dynamical system with zero-dimensional set of periodic points can be covered by a metric zero-dimensional dynamical system via an at most 2n-to-one closed map. Moreover, we also study periodic dynamical systems. We show that each finite-dimensional periodic dynamical system can be covered by a zero-dimensional periodic dynamical system via a finite-to-one closed onto map.
著者
Fujii Tomoki Ishikawa Ryuichiro
出版者
Springer US
雑誌
Review of economics of the household (ISSN:15695239)
巻号頁・発行日
vol.11, no.1, pp.143-149, 2013-03
被引用文献数
1 1

This paper shows that it is possible to track the changes in the distribution of power within a couple by focusing on the changes in the pattern of private consumption when the consumption decisions are efficient and private consumption is separable from public consumption in individual preferences. We first show that the separability of private consumption from public consumption at the individual level carries over to the household level. Hence, changes in public consumption only matters through a change in the residual budget available for private consumption. When the consumption decisions within the household is efficient, private consumption decisions can be modeled as the solution of a problem consisting in maximizing a weighted sum of the private-consumption sub-utility functions of the spouses under the residual budget, the weights being unique and representing the distribution of power over the allocation of private consumption. The model presented in this paper can be used to analyze the changes in the household resource allocation due to, for example, childbirth.
著者
永易 淳
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2009-2011
著者
小金澤 禎史
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:若手研究(B)2009~2011
著者
Fernandez Roselyn D. Yoshimizu Mamoru Ezura Yoshio Kimura Takahisa
出版者
日本魚病学会
雑誌
魚病研究 (ISSN:0388788X)
巻号頁・発行日
vol.28, no.1, pp.27-34, 1993-03

Growth responses to three different media, temperatures, and sodium chloride concentrations in the media were determined for 13 salmonid and 14 non-salmonid fish cell lines. Most cell lines showed better growth in Eagle's MEM than in Medium 199 or in Leivobitz L-15 medium. Nine salmonid cell lines grew well in the normal sodium bicarbonate buffer in Eagle's MEM, while 11 non-salmonid cell lines grew better in Eagle's MEM buffered with either HEPES-bicarbonate or Tris-bicarbonate. Optimum temperature for growth ranged from 15 to 20℃ for almost all salmonid cells and 20 to 30℃ for non-salmonid cells. Most of the cell lines showed highest growth in commercial medium preparations with the lowest concentrration of sodium chloride (0.116M) examined. However, three of the six cell lines derived from rainbow trout, Oncorhynchus mykiss, and cell lines from eels, Anguilla japonica, showed optimum growth response at a higher sodium chloride concentration of 0.171M in the medium.
著者
西出 佳代
出版者
北海道大学大学院文学研究科
雑誌
研究論集 (ISSN:13470132)
巻号頁・発行日
vol.12, pp.137-155, 2012-12-26

Dieser Artikel ist eine uberarbeitete Version meines Vortrags beim Kolloquium an der Universitat Luxemburg im Oktober 2011,bei dem die Problematik der Luxemburgistik von Forschern aus Luxemburg und Japan kritisch erortert wurde sowie die Ziele und die Bedeutungen der Luxemburgistik in Japan diskutiert wurden. Fur die Publikation in Japan habe ich außerdem einige allgemeine Informationen und verschiedene Aspekte der Luxemburgistik hinzugefu gt.Im 1. Kapitel wird die Geschichte des Großherzogtums Luxemburg seit dem Mittelalter in Bezug auf dessen linguistische Situation kurz dargestellt,damit man eine Vogelperspektive auf die luxemburgische Gesellschaft sowie deren heutige hybride und mehrsprachige Situation haben kann. Im 2.Kapitel wird die Thematik der Luxemburgistik unter zwei Gesichtspunkten behandelt:Erstens die Mehrsprachigkeit der luxemburgischen Gesellschaft und zweitens die Entwicklung des Luxemburgischen als einer Ausbausprache,die durch das Sprachgesetz von 1984 aus dem deutschen Dialekt Westmoselfrankisch zur Nationalsprache des Großherzogtums geworden ist. Zum Schluss wird im 3.Kapitel die Luxemburgistik als INTER-kulturelle Forschung in Japan der INTRA-kulturellen Forschung in Luxemburg gegenubergestellt. Damit sollen ihre Moglichkeiten in zwei Richtungen, intern fur Japan und extern fur Luxemburg,entwickelt werden.
著者
司城 紀代美
出版者
東京大学大学院教育学研究科
雑誌
東京大学大学院教育学研究科紀要 (ISSN:13421050)
巻号頁・発行日
vol.50, pp.119-126, 2011-03-10

Vygotsky is a psychologist who eagerly worked on the research and the practice of education for children with difficulties. His theory is pioneering, and it has a big influence on modern education for children with difficulties. In this paper, the following two problems are examined. The first is how the theory of Vygotsky is located in the present special needs education research, and the next is how it is useful for the research of the special needs education of Japan. The concept of "detour" is presented as a clue effective to research the special needs education of the mainstream school.
著者
中内 靖
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2009-2011
著者
平賀 譲
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2009-2011
著者
清水 諭
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2009-2011
著者
張 勇兵
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2009-2011
著者
Aoki Sinya Charron Bruno Doi Takumi Hatsuda Tetsuo Inoue Takashi Ishii Noriyoshi
出版者
American Physical Society
雑誌
Physical review D (ISSN:15507998)
巻号頁・発行日
vol.87, no.3, pp.034512, 2013-02
被引用文献数
34 9

We construct energy-independent but nonlocal potentials above inelastic thresholds, in terms of Nambu-Bethe-Salpeter wave functions defined in quantum field theories such as QCD. As an explicit example, we consider NN→NN+nπ scattering processes for n=0,1,2,…. We show the existence of energy-independent coupled channel potentials with a nonrelativistic approximation, where momenta of all particles are small compared with their own masses. In the case of two-body inelastic scatterings such as ΛΛ→ΛΛ, NΞ, ΣΣ, on the other hand, we show that energy-independent potentials can be constructed without relying on nonrelativistic approximations. We also propose a method to extract these potentials using time dependence of general correlation functions.