文献一覧: 東京大学 (著者)

1 0 0 0 海洋酸性化がサンゴ礁域の石灰化生物に及ぼす影響

著者: 諏訪僚太中村崇井口亮中村雅子守田昌哉加藤亜記藤田和彦井上麻夕里酒井一彦鈴木淳小池勲夫白山義久野尻幸宏 Ryota Suwa Takashi Nakamura Akira Iguchi Masako Nakamura Masaya Morita Aki Kato Kazuhiko Fujita Mayuri Inoue Kazuhiko Sakai Atsushi Suzuki Isao Koike Yoshihisa Sirayama Yukihiro Nojiri 京都大学フィールド科学教育研究センター瀬戸臨海実験所九州大学付属天草臨海実験所琉球大学熱帯生物圏研究センター瀬底研究施設琉球大学熱帯生物圏研究センター瀬底研究施設琉球大学熱帯生物圏研究センター瀬底研究施設琉球大学大学院理工学研究科琉球大学大学院理工学研究科東京大学海洋研究所琉球大学熱帯生物圏研究センター瀬底研究施設産業技術総合研究所琉球大学京都大学フィールド科学教育研究センター瀬戸臨海実験所国立環境研究所地球環境研究センター Seto Marine Biological Laboratory Field Science Education and Research Center Kyoto University Amakusa Marine Laboratory Kyusyu University Sesoko Station Tropical Biosphere Research Center University of the Ryukyus Sesoko Station Tropical Biosphere Research Center University of the Ryukyus Sesoko Station Tropical Biosphere Research Center University of the Ryukyus Graduate School of Engineering and Science University of the Ryukyus Graduate School of Engineering and Science University of the Ryukyus Ocean Research Institute The University of Tokyo Sesoko Station Tropical Biosphere Research Center University of the Ryukyus Geological Survey of Japan National Institute of Advanced Industrial Science and Technology(AIST) University of the Ryukyus Seto Marine Biological Laboratory Field Science Education and Research Center Kyoto University Center for Global Environmental Research National Institute for Environmental Studies
出版者: 日本海洋学会
雑誌: 海の研究 (ISSN:09168362)
巻号頁・発行日: vol.19, no.1, pp.21-40, 2010-01-05
参考文献数: 102
被引用文献数: 3

産業革命以降の二酸化炭素(CO_2)排出量の増加は,地球規模での様々な気候変動を引き起こし,夏季の異常高海水温は,サンゴ白化現象を引き起こすことでサンゴ礁生態系に悪影響を及ぼしたことが知られている。加えて,増加した大気中CO_2が海水に溶け込み,酸として働くことで生じる海洋酸性化もまた,サンゴ礁生態系にとって大きな脅威であることが認識されつつある。本総説では,海洋酸性化が起こる仕組みと共に,海洋酸性化がサンゴ礁域の石灰化生物に与える影響についてのこれまでの知見を概説する。特に,サンゴ礁の主要な石灰化生物である造礁サンゴや紅藻サンゴモ,有孔虫に関しては,その石灰化機構を解説すると共に,海洋酸性化が及ぼす影響について調べた様々な研究例を取り上げる。また,これまでの研究から見えてきた海洋酸性化の生物への影響評価実験を行う上で注意すべき事項,そして今後必要となる研究の方向性についても述べたい。The increase of the atmospheric carbon dioxide (CO_2) concentration after the industrial revolution caused global climate change. During the last several decades, coral reef ecosystems have been devastated by the mass-scale coral bleaching events caused by abnormally high seawater temperature in summer. In addition, increased atmospheric CO_2dissolves in the ocean, acts as an acid and finally decreases the pH level of seawater. This phenomenon, known as ocean acidification, is now being considered as a future threat to the calcifying organisms in coral reef ecosystems. In this review, we summarize basic backgrounds of ocean acidification as well as its potential impacts on coral reef calcifiers. Together with the distinctive mechanisms of calcification among specific groups, we review the impacts of ocean acidification on major reef-builders such as scleractinian corals, calcareous red algae and reef-dwelling foraminifera. Finally, we point out some recently-recognized problems in acidified seawater experiments as well as the future direction of this research field.

2020-02-03 14:22:50
1 + 1 Wikipedia

https://ci.nii.ac.jp/naid/110007521649

1 0 0 0 現代航空論 : 技術から産業・政策まで

著者: 東京大学航空イノベーション研究会鈴木真二岡野まさ子編
出版者: 東京大学出版会
巻号頁・発行日: 2012

2020-01-13 00:48:11
1 + 2 Wikipedia

https://ci.nii.ac.jp/ncid/BB10227502

1 0 0 0 OA 近見視力検査の導入に向けて(5) : 小学生の遠見視力検査と近見視力検査の結果から

著者: 高橋ひとみ衞藤隆 Hitomi Takahashi Takashi Eto 桃山学院大学法学部東京大学教育学研究科
雑誌: 桃山学院大学人間科学 = HUMAN SCIENCES REVIEW, St. Andrew's University (ISSN:09170227)
巻号頁・発行日: no.37, pp.35-61, 2009-10-20

In February 2009, we tested the far-vision visual acuity and near-vision visual acuity of school children at "A" elementary school, a municipal school. The purpose of the test was to examine whether the present far visual acuity test could also identify the children whose near visual acuity is bad. Based on the past study, we set the standard of near visual acuity at 0.8. We recommended that children whose near visual acuity was under0.8 see an ophthalmologist. There were many children whose far visual acuity was under 1.0, more than half of all children, especially in the upper grades. This result shows that there is concern with the control of children's eyesight after the test.On the other hand, more than ten percent of the children of each grade scored less than 0.8 in uncorrected vision. We found children who have trouble seeing near objects who are overlooked in the present far visual acuity test. We have to check children's near visual acuity in order to find children who have trouble with near visual acuity.