著者

Takashi Hayashi

出版者

The Japanese Society for Mathematical Economics

雑誌

数理経済学会誌 (ISSN:24363162)

巻号頁・発行日

vol.1, pp.23-37, 2022 (Released:2022-03-31)

参考文献数

16

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Given the direct conflict between envy-freeness and Pareto efficiency when individuals have unequal labour skills, we examine what are attainable when we choose to insist on envyfreeness.

著者

Takashi HAYASHI Satoru TSUJII Tadao IBURI Tamiko TAMANAHA Keiko YAMAGAMI Rieko ISHIBASHI Miyo HORI Shigeko SAKAMOTO Hitoshi ISHII Kazuo MURAKAMI

出版者

Biomedical Research Press

雑誌

Biomedical Research (ISSN:03886107)

巻号頁・発行日

vol.28, no.6, pp.281-285, 2007 (Released:2008-01-18)

参考文献数

26

被引用文献数

32 40

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To elucidate the sustainable effects of laughter on gene expression, we recruited type 2 diabetic patients who were in-patient for receiving self-management education and examined time-dependent regulation for gene expression by laughter. Two-day experiment was performed. On one day, the patients watched comic video and laughed together with hospital staffs. On the other day, they participated in an inpatient diabetes educational program. Blood samples were collected before and 1.5, 4 h after watching comic video or spending lecture time, and changes in gene expression were comprehensively analyzed by microarray technique. Of the 41,000 genes analyzed, the laughter relatively up-regulated 39 genes, among which, 27 genes were relatively increased in the expression for all the observation period after watching comic video. By functional classification of these genes, 14 genes were found to be related to natural killer cell activity. No genes were included that are directly involved in blood glucose regulation, though successive suppression of postprandial blood glucose levels was observed. These results suggest that the laughter influences the expression of many genes classified into immune responses, and may contribute to amelioration of postprandial blood glucose elevation through a modulation of NK cell activity caused by up-regulation of relating genes.

著者

Takashi Hayashi

出版者

The Japanese Society for Mathematical Economics

雑誌

数理経済学会誌 (ISSN:24363162)

巻号頁・発行日

vol.2, pp.1-10, 2023 (Released:2023-03-31)

参考文献数

24

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This paper studies how society should be risk-averse accordingly to how individuals are risk-averse. We consider two axioms, one that if everybody prefers one risky prospect over another so should the society, the other that if everybody is more risk-averse so should the society. We show that the two axioms imply dictatorship, in the sense that the social ranking over risky prospects has to be always identical with one individual's risk preference in each equivalence class of risk preferences which yield the same profile of ordinal preferences over deterministic outcomes.

著者

高尾 敏文 桐山 希一 深谷 隆史 漆畑 俊哉 林 隆司 Toshifumi Takao Kiichi Kiriyama Takashi Fukaya Toshiya Urushihata Takashi Hayashi

雑誌

医療保健学研究 = Medical and Health Science Research (ISSN:21852227)

巻号頁・発行日

vol.8, pp.51-57, 2017-03-31

著者

TAKASHI HAYASHI

出版者

The Keio Journal of Medicine

雑誌

The Keio Journal of Medicine (ISSN:00229717)

巻号頁・発行日

vol.14, no.3, pp.135-144, 1965 (Released:2009-03-27)

参考文献数

20

被引用文献数

2 7