著者

藤井乙男 校註

出版者

有朋堂書店

巻号頁・発行日

1922

著者

宮地 直道 富樫 茂子 千葉 達朗

出版者

特定非営利活動法人 日本火山学会

雑誌

火山 (ISSN:04534360)

巻号頁・発行日

vol.49, no.5, pp.237-248, 2004

参考文献数

34

被引用文献数

4

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A large-scale collapse occurred at the eastern slope of Fuji volcano about 2900 years ago, based on calibrated ¹⁴C age of a wood sample collected in the resulting debris avalanche deposit. The collapsed slide deposit, called "Gotemba debris avalanche deposit" (Goda), is distributed on the eastern foot of the volcano covering an area of more than 53 km² The source amphitheater is not preserved because it became covered by younger tephra erupted from the summit crater. This avalanche deposit is overlain by the "Gotemba, mudflow deposits" (Gomf) emplaced repeatedly after the avalanche. Some now units of the Goda and Gomf entered pre-existing rivers and were finally emplaced as fluvial deposits. The Goda is composed of debris-avalanche blocks, showing jigsaw cracks, along with smaller blocks ranging from several tens of centimeters up to l m in diameter. The debris-avalanche matrix is a mixture of smaller nieces of blocks and ash-sized materials due to mainly shearing and fragmentation of large blocks. Igneous rocks include fresh and altered gray basaltic lava, weathered tephra including red scoria and white clay. Petrographical and geochemical data indicate that most blocks were derived from the Older Fuji volcano. The volumes of the Goda and Gomf are about l.05km^3 and 0.71km^3 respectively, based on presently available geological and borehole data. Since the blocks of Goda are composed mostly of the products of the Older Fuji volcano and the older stage lavas of Younger Fuji volcano do not extend to the eastern foot of Fuji volcano, a bulge of Older Fuji volcano must have existed in the eastern flank of Fuji volcano preventing the older stage lavas to now to the east. This bulge collapsed in the form of three blocks from the foot of the mountain. The abundance of hydrothermally altered deposits in the Goda and the absence of fresh volcanic products within the Goda suggest its origin as a rupture inside the altered deposits possibly triggered by a large earthquake or phreatic eruption.

著者

丸山 宏

出版者

日本認知科学会

雑誌

認知科学 (ISSN:13417924)

巻号頁・発行日

vol.28, no.2, pp.292-298, 2021-06-01 (Released:2021-06-15)

参考文献数

7

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We consider an intelligence as computation and classify it by the way its specifications are given. Based on this classification, we argue that it is difficult to design a human-like intelligence. Then, we discuss the possibility of non-human-like intelligence. We also touch on the necessity of the study of human intelligence from the social point of view.

著者

坂根 嘉弘 Sakane Yoshihiro

雑誌

経済科学研究

巻号頁・発行日

vol.21, no.1・2, pp.83-101, 2018-02-28

著者

Tomomi TAKANO Shinji YAMADA Tomoyoshi DOKI Tsutomu HOHDATSU

出版者

JAPANESE SOCIETY OF VETERINARY SCIENCE

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

vol.81, no.6, pp.911-915, 2019 (Released:2019-06-21)

参考文献数

22

被引用文献数

1 37

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Feline infectious peritonitis virus (FIPV) causes a severe, immune-mediated disease called FIP in domestic and wild cats. It is unclear whether FIP transmits from cat to cat through the oral route of FIPV infection, and the reason for this includes that FIP is caused by oral inoculation with some FIPV strains (e.g., type II FIPV WSU 79-1146), but is not caused by other FIPV (e.g., type I FIPV KU-2 strain: FIPV-I KU-2). In this study, when cats passively immunized with anti-FIPV-I KU-2 antibodies were orally inoculated with FIPV-I KU-2, FIP was caused at a 50% probability, i.e., FIPV not causing FIP through oral infection caused FIP by inducing antibody-dependent enhancement. Many strains of type I FIPV do not cause FIP by inoculation through the oral route in cats. Based on the findings of this study, type I FIPV which orally infected cats may cause FIP depending on the condition.

著者

山本 政儀 坂口 綾

出版者

日本地球化学会

雑誌

地球化学 (ISSN:03864073)

巻号頁・発行日

vol.49, no.4, pp.173-184, 2015-09-25 (Released:2015-12-25)

参考文献数

25

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Huge amounts of radionuclides were released into the atmosphere and ocean from the Fuku shima Dai-ichi Nuclear Power Plant (FDNPP), as a result of the reactor accident after the magnitude 9.0 Great East Japan Earthquake and subsequent gigantic tsunami on March 11, 2011. This paper summarizes our research activities on measurements of actinide elements (236U, 238,239,240,241Pu, 241Am and 242,243,244Cm) in the environmental samples.

著者

Tatsuhiko Anzai Keisuke Fukui Tsubasa Ito Yuri Ito Kunihiko Takahashi

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20200443, (Released:2020-12-12)

参考文献数

34

被引用文献数

2 26

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Background: Suicide amidst the coronavirus disease (COVID-19) pandemic is an important issue. In Japan, the number of suicides in April 2020 decreased by nearly 20% from that in 2019. To assess the impact of an infectious disease pandemic, excess mortality is often discussed. Our main purpose was evaluating excess mortality from suicide in Japan during the early pandemic period.Methods: We used data on suicides collected by the National Police Agency of Japan until June 2020. We estimated excess mortality during the early pandemic period (March–June 2020) using a time-series model of the number of suicides before the pandemic. A quasi-Poisson model was employed for the estimation. We evaluated excess mortalities by the categories of age and sex, and prefectures.Results: No significant excess mortality was observed throughout the early pandemic; instead, a downward trend in the number of suicides for both sexes was noted. For males, negative values of excess mortalities below the lower bound of the 95% prediction interval were observed in April and May. All numbers of females during the period were included in the interval, and the excess mortalities in June were positive and higher than those in April and May. In Tokyo, the number of suicides was below the lower bound throughout the period.Conclusion: Our results suggest that various changes such as communication, and social conditions amid the early COVID-19 pandemic induced a decrease in suicides in Japan. However, continuous monitoring is needed to evaluate the long-term effects of the pandemic on suicides.

出版者

写

巻号頁・発行日

1529

著者

渋谷 努

雑誌

社会科学研究 = SHAKAIKAGAKU-KENKYU

巻号頁・発行日

vol.39, no.2, pp.255-280, 2019-03-30

著者

持田 誠

出版者

一般社団法人 日本生態学会

雑誌

日本生態学会誌 (ISSN:00215007)

巻号頁・発行日

vol.66, no.1, pp.265-270, 2016 (Released:2016-06-01)

参考文献数

11

著者

遠藤 芳信

出版者

北海道教育大学

雑誌

北海道教育大学紀要 人文科学・社会科学編 (ISSN:13442562)

巻号頁・発行日

vol.52, no.1, pp.117-132, 2001-09

著者

山岡規雄

出版者

国立国会図書館

雑誌

レファレンス (ISSN:1349208X)

巻号頁・発行日

no.802, 2017-11

著者

高橋 かおり

出版者

早稲田大学大学院社会学院生研究会

雑誌

ソシオロジカル・ペーパーズ (ISSN:1340721X)

巻号頁・発行日

vol.23, pp.19-34, 2014-03-10

著者

辻村 公一

出版者

日本学士院

雑誌

日本學士院紀要 (ISSN:03880036)

巻号頁・発行日

vol.62, no.2, pp.141-171, 2007

著者

黒木 大一朗

出版者

日本基礎心理学会

雑誌

基礎心理学研究 (ISSN:02877651)

巻号頁・発行日

pp.38.37, (Released:2020-04-21)

参考文献数

26

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Recently Web-based/online psychological studies have been reported, in which web browsers familiarized by participants such as Microsoft Edge, Apple Safari, and Google Chrome are used for presenting stimuli and recording responses. The present article summarizes advantages and disadvantages of conducting Web-based experiments, and provide brief explanations of the knowledge required to create the programs. Technically speaking, it is better to know HTML, CSS, JavaScript (frameworks), and web servers. Web-based studies will be conducted more broadly in psychology because researchers can recruit more efficiently large and diverse samples from crowdsourcing marketplaces than from traditional participant pools.

著者

楠戸 一彦

出版者

広島大学

雑誌

基盤研究(C)

巻号頁・発行日

2013-04-01

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本研究の課題は,ドイツ中世後期の剣士団体である「マルクス兄弟団」の成立事情,目的と活動,団員の剣術技法,団員の社会的階層を,解明することであった。先行研究の成果を整理し,史料である剣術書と「マルクス兄弟団」関係文書の内容を分析することによって,次の点を明らかにした。(1)マルクス兄弟団は1487年に皇帝フリードリヒ3世より「特権状」を獲得した。(2)目的と活動の重点は,当初の宗教的相互扶助から,16世紀後半にはツンフト的権利擁護に移行した。(3)団員の剣術技法は,14世紀後半のJ.リーヒテナウエルの技法を遵守していた。(4)団員の社会的階層は,貴族や商人ではなく,大部分が手工業者であった。

著者

中林 敏郎

出版者

Japanese Society for Food Science and Technology

雑誌

日本食品工業学会誌 (ISSN:00290394)

巻号頁・発行日

vol.25, no.3, pp.142-146, 1978-03-15 (Released:2010-01-20)

参考文献数

10

被引用文献数

5 13 3

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焙煎によるコーヒー豆の有機酸とpHの変化を検討した結果。(1) コーヒーの有機酸のブチルエステルをガスクロマトグラフィーで分析して,ギ酸,酢酸,乳酸,グライコール酸,レヴリン酸,シュウ酸,マロン酸,コハク酸,リンゴ酸およびクエン酸を同定した。(2) 焙煎により有機酸はそれぞれ変動するが,特にギ酸と酢酸の増減が著しい。(3) 焙煎中,遊離酸量はメディアムで最高となった後減少し,pHもこれに応じて変動するが,総酸量はほとんど最後まで増加を続ける。(4) メディアム以降,かなりの量の有機酸が黒褐色多孔性のコーヒー豆組織に吸着される。

出版者

文部省

巻号頁・発行日

1909

著者

今 防人

出版者

流通経済大学

雑誌

流通問題研究 (ISSN:03892646)

巻号頁・発行日

no.23, pp.1-51, 1994-05

著者

西 平等

出版者

關西大學法學會

雑誌

關西大學法學論集 (ISSN:0437648X)

巻号頁・発行日

vol.65, no.2, pp.333-361, 2015-07-10