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Mathematical model approach to understand the ecological effect under chronic irradiation
https://repo.qst.go.jp/records/46349
https://repo.qst.go.jp/records/46349b37a64df-71d8-4ac6-91e0-919d6fa876f6
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2012-06-22 | |||||
タイトル | ||||||
タイトル | Mathematical model approach to understand the ecological effect under chronic irradiation | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Kawaguchi, Isao
× Kawaguchi, Isao× Doi, Masahiro× Fuma, Shoichi× 川口 勇生× 土居 雅広× 府馬 正一 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Although aim of the environmental protection is conservation of ecosystem, there are only a few studies focusing on the effect of radiation on ecosystem. To understand the ecological effect of irradiation, microbial ecosystem, "microcosm", which contains minimum components of ecosystem such as producer, consumer and decomposer, is useful because the natural ecosystem is too complex. The microcosm consists of three species, i.e. Euglena (producer), Tetrahymena (consumer), and E. coli (decomposer). The mathematical model and computer simulation model were also developed to understand the mechanism of ecological interaction using the results of acute exposure experiments of the microcosm, and we predicted Tetrahymena, which is the most radio-resistant among the constituent species, would be most sensitive in the chronically irradiated microcosm as a result of an indirect effect due to population decrease in E. coli. Recently we started chronic exposure experiments. The microcosms were irradiated with gamma-rays at dose rate of 1.2Gy/day, 5Gy/day, 10Gy/day and 23Gy/day. From preliminary results, we found that the prediction from the models was different from the experimental results. Therefore, in this study, we improved our mathematical model and discuss the difference between the model and experiments. |
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書誌情報 |
Radioprotection 巻 46, 号 6, p. S535-S538, 発行日 2011 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0033-8451 |