著者

Hideo Sugiyama Hiroshi Terada Kimio Isomura Ikuyo Iijima Jun Kobayashi Kiyoshi Kitamura

出版者

日本毒性学会

雑誌

The Journal of Toxicological Sciences (ISSN:03881350)

巻号頁・発行日

vol.34, no.4, pp.417-425, 2009-08-01 (Released:2009-08-01)

参考文献数

24

被引用文献数

9 15

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The isotope 210Po was suspected of being involved in the death of a former Russian intelligence agent in 2006 in the UK. Although human exposure to this natural radionuclide in foods is estimated to be high, few studies are available. UNSCEAR Report 2000 does not contain data on 210Po concentrations of foodstuffs in Japan. We analyzed samples of the everyday Japanese diet cooked with foodstuffs purchased at supermarkets in 7 major domestic cities in 2007-2008. 210Po was quantified by alpha spectrometry and natural radionuclides such as 40K by gamma spectrometry. The daily intake and committed effective dose of 210Po, 40K, and other natural radionuclides for Japanese adults were calculated. Daily intake was 0.34-1.84 (mean ± σ : 0.66 ± 0.53) and 68.5-94.2 (81.5 ± 8.5) Bq/d and the committed effective dose was 0.15-0.81 (0.29 ± 0.24) and 0.16-0.21 (0.18 ± 0.02) mSv for 210Po and 40K, respectively, comprising a high percentage of the total exposure. The total of the mean committed effective dose for the two nuclides (0.47 mSv) was higher than the annual effective dose from ingestion of foods reported by UNSCEAR 2000 (0.29 mSv). The mean committed effective dose of 40K in the 7 major Japanese cities was comparable to the global average (0.17 mSv). The dietary exposure of Japanese adults can be characterized by a higher 210Po contribution than in other countries. Of the total daily dietary 210Po exposure (13 food categories excluding water) for adults in Yokohama, about 70% was from fish/shellfish and 20% from vegetables/mushrooms/seaweeds, reflecting preferences of Japanese to eat a considerable amount of fish/shellfish containing high 210Po concentrations.

著者

Kyoko Sudo Shinichiro Noda Jun Kobayashi Pongthep Wongwatcharapaiboon Utaiwan Sakolwasan Kenzo Takahashi

出版者

National Center for Global Health and Medicine

雑誌

Global Health & Medicine (ISSN:24349186)

巻号頁・発行日

pp.2023.01032, (Released:2023-09-29)

参考文献数

36

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In the implementation of the policy for the elderly, the nurses who have the competency to pull out their potential power to continue living with several stakeholders' support are required to provide care in the community. Community nurse in Thailand has the responsibility to deliver adequate medical care and also social care for the elderly. The study aimed to identify the role of community nurse in the implementation of Thai health policy for the elderly. Codes regarding the role of community nurse in the implementation of Thai health policy for the elderly were extracted from descriptive data interviewed with 15 policy implementors in Thailand. The codes were categorized by similarities using thematic analysis. The role of community nurse was 16 categories and 102 codes out of factors promoting implementation of Thai health policy for the elderly, with 27 categories and 416 codes. The main roles were Coordination, Service delivery, and Monitoring and evaluation, composing seven categories and 45 codes, eight categories and 51 codes, and one category and six codes, respectively. It was conspicuous in coordination mechanisms, especially between the organizations and disciplines in providing Primary Health Care. Both health promotion activities and medical treatment were crucial roles for community nurses. The role of community nurse was one of promoting factors of Thai health policy for the elderly. The community nurse acts as a lubricant between the hospital and the community, which means that the community nurse implements seamless service delivery for the elderly integrating medical care and welfare.

著者

Jun Kobayashi Carola Hommerich

出版者

Japanese Association For Mathematical Sociology

雑誌

理論と方法 (ISSN:09131442)

巻号頁・発行日

vol.32, no.1, pp.49-63, 2017 (Released:2017-07-19)

参考文献数

33

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Within the booming field of research on subjective well-being, happiness and unhappiness have so far been treated as two ends of a continuum with causes and mechanisms being the same for both. Still, this is not self-evident. We here use the SSP2015 survey data to investigate whether happiness and unhappiness have the same determinants. To do so, we classify the respondents into three well-being groups: the “happier than average,” the “average,” and the “less happy than average.” We conduct a multinomial logistic regression analysis to disentangle the effects of education depending on the level of happiness. Our results imply that (1) more education promotes happiness of unhappy people. At the same time, however, we find that (2) an increase in education reduces the happiness of happy people. This means that the impact of education on happiness is by no means straightforward, but that it can have opposing effects depending on the happiness level. This supports our hypothesis that some determinants have different effects on different happiness levels. It also implies that an enhancement of subjective well-being cannot be achieved in the same way for happy and unhappy people. Therefore, happiness and unhappiness turn out not to be two sides of the same coin.

著者

小林 純 コバヤシ ジュン Jun Kobayashi

雑誌

立教經濟學研究

巻号頁・発行日

vol.64, no.4, pp.63-91, 2011-03-20

著者

小林 純 コバヤシ ジュン Jun Kobayashi

雑誌

立教經濟學研究

巻号頁・発行日

vol.53, no.1, pp.55-69, 1999-07

著者

Eri Yamamoto Jun Kobayashi Keiko Kanamaru Toshiaki Miura Fujio Watanabe Noriyuki Kobayashi Masanobu Hasatani

出版者

公益社団法人 化学工学会

雑誌

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN (ISSN:00219592)

巻号頁・発行日

vol.36, no.3, pp.348-352, 2003 (Released:2003-11-15)

参考文献数

10

被引用文献数

5 6

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A new hydrophilic method for achieving a high-performance adsorbent by impregnating silica into pores of activated carbon has been proposed. In the process, silica-gel was synthesized in the pores of activated carbon after inserting a sodium silicate solution into the pores. Three types of activated carbon were tested to produce hydrophilic activated carbon and to investigate the hydrophilicity by measuring the adsorption isotherms of water vapor and pore structure characteristics. The proposed method worked effectively for adding hydrophilicity to activated carbon, since all of adsorption isotherms of the material treated with this method shifted to a lower region of water vapor pressure than that of the raw material. The shift to a lower relative pressure of adsorption isotherm was maximum when the concentration of sodium silicate solution was 1 mass%.