著者

中村 一明

出版者

公益社団法人 東京地学協会

雑誌

地学雑誌 (ISSN:0022135X)

巻号頁・発行日

vol.93, no.1, pp.56, 1984-02-25 (Released:2010-10-13)

被引用文献数

1

著者

Trang Nguyen Phan Anh Ngoc Tong Thi Yoshimitsu Masuda Ken-ichi Hohjoh Takahisa Miyamoto

出版者

Japanese Society for Food Science and Technology

雑誌

Food Science and Technology Research (ISSN:13446606)

巻号頁・発行日

pp.FSTR-D-22-00074, (Released:2022-09-09)

被引用文献数

1

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This study illustrates the effectiveness of slightly acidic hypochlorous water (SAHW) in comparison with sodium hypochlorite (NaOCl) in reducing biomass and viable cells in biofilms established by the dual species, Listeria monocytogenes and Escherichia coli, on a microtiter plate and stainless-steel coupon. The SAHW and NaOCl treatments exhibited significant efficacy against biofilms (p<0.05) on both surfaces. Additionally, compared with NaOCl treatment, SAHW treatment significantly reduced biofilm formation (p<0.05). With its high antibiofilm activity, SAHW not only reduced the biomass of biofilms, but also significantly decreased viable biofilm cells to 5 log CFU/mL or ≤1 log CFU/cm2 on microtiter plates and stainless-steel surfaces, respectively. These results indicate that SAHW is a potential candidate for disinfectants against biofilms on various food contact surfaces.

著者

津田 泰弘 Y. Tsuda

雑誌

人文論究 (ISSN:02866773)

巻号頁・発行日

vol.33, no.4, pp.91-115, 1984-02-20

著者

高橋 進

出版者

龍谷大学

雑誌

社会科学研究年報 (ISSN:0288481X)

巻号頁・発行日

vol.42, pp.151-159, 2011-05

著者

八波則吉 著

出版者

教育研究会

巻号頁・発行日

vol.第3, 1928

著者

小林多喜二 著

出版者

戦旗社

巻号頁・発行日

1929

著者

東京博物学研究会 編

出版者

参文舎[ほか]

巻号頁・発行日

1907

著者

釜崎 太

出版者

日本体育・スポーツ哲学会

雑誌

体育・スポーツ哲学研究 (ISSN:09155104)

巻号頁・発行日

vol.44, no.1, pp.35-45, 2022 (Released:2022-10-01)

著者

石川 友紀

出版者

The Human Geographical Society of Japan

雑誌

人文地理 (ISSN:00187216)

巻号頁・発行日

vol.25, no.4, pp.456-473, 1973-08-28 (Released:2009-04-28)

参考文献数

29

被引用文献数

3 2

著者

久米 洋輝 栗田 萌 保木 邦仁

雑誌

研究報告ゲーム情報学(GI) (ISSN:21888736)

巻号頁・発行日

vol.2019-GI-41, no.14, pp.1-7, 2019-03-01

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本研究の目的は、麻雀プレイヤの実力を少ない行動記録から推定することである.実力の推定は、麻雀人工知能(AIプレイヤ)を用いてエラーレートを評価することによりなされる.エラーレートとはバックギャモンで用いられるプレイヤの実力の指標であり,これは1行動あたりの推定価値(得点期待値)の減少平均値から見積もられる.現状,麻雀プレイヤの実力は平均順位やレート値から推定される.本研究では,エラーレートと平均順位の平均レート推定性能を比較した.その結果,おおよそ16試合の行動記録から評価したエラーレートと500試合の平均順位が同程度の推定性能である可能性が示された.

著者

針生 清人

出版者

アジア・アフリカ文化研究所

雑誌

アジア・アフリカ文化研究所研究年報 = Annual Journal of the Asia-Africa Cultures Research Institute (ISSN:02883325)

巻号頁・発行日

vol.30, pp.1-17, 1995

著者

ダンドーラス イアニス 山内 正敏 デ・ケイゼル ヨハン マルイツ オクターブ レメー ヘンリー 吉川 一朗 坂野井 健 ESCAPE チーム Dandouras. I. Yamauchi M. De Keyser J. Keyser De KeyserReme H. Yoshikawa Ichiro Sakanoi Takeshi ESCAPE proposal team

出版者

宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)

雑誌

第18回宇宙科学シンポジウム 講演集 = Proceedings of the 18th Space Science Symposium

巻号頁・発行日

2018-01

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第18回宇宙科学シンポジウム (2018年1月9日-10日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県

著者

小川 真

出版者

公益財団法人 国際緑化推進センター

雑誌

熱帯林業 (ISSN:09105115)

巻号頁・発行日

vol.24, pp.47, 1992-05-25 (Released:2022-04-29)

参考文献数

1

著者

小関 敏彦

出版者

公益財団法人 日本醸造協会

雑誌

日本醸造協会誌 (ISSN:09147314)

巻号頁・発行日

vol.90, no.8, pp.578-585, 1995-08-15 (Released:2011-09-20)

参考文献数

21

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低アルコール清酒の開発は, 業界全体の早急に解決されるべき課題となっている。これまでにもいろいろの製品が市販されてきたが, 定着するまでにもっていくことは伝統的な酒だけに大変な努力が必要である。ここに, 現在注目されている吟醸酒の香りの良さと生酒のフレッシュ感をあわせ持った低アルコール清酒を開発した筆者に, 開発の経緯, 製造法, 低アルコール清酒に対する考え方などを解説していただいた。

著者

鈴木 久美

出版者

山形県立米沢女子短期大学附属生活文化研究所

雑誌

山形県立米沢女子短期大学附属生活文化研究所報告 (ISSN:0386636X)

巻号頁・発行日

no.45, pp.95-108, 2018-03-15

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1990 年代後半、日本長期信用銀行の破綻など、金融機関の破綻が相次いだ。そのため、この時期には金融システムの安定化のための議論や提案が多くなされた . そもそも、部分準備制度のもとでは健全な経営をしている銀行でさえ、銀行取付にあい破綻する可能性を持っている。この経営が健全な銀行でさえ破綻する可能性を理論的に示した Diamond and Dybvig(1983)モデルでは、効率的な均衡と非効率的な均衡のどちらが達成されるかはサンスポットであるとしていた。本論文では、実験経済学の手法を利用し、Diamond and Dybvig(1983)モデルの検証を行った。結果、銀行破綻回避策がない場合は、非効率的な均衡が達成される、すなわち、銀行破綻が生じやすいことが確認された。また、消費者(預金者)のタイプの割合がわかっている場合、支払停止条項は有効な銀行破綻回避策となりうることが、消費者のタイプの割合がわからないときは、政府による預金保険が有効な銀行回避策であることがわかった。

著者

南 紅玉

出版者

Tohoku University

巻号頁・発行日

2016-04-20

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課程

著者

Masaharu HAYAKAWA Mieko SUZUKI-MATSUBARA Kazumi MATSUBARA Satoshi KANAZAWA Takashi FUJII Wataru KITAMURA Ryoh Alexander MUROFUSHI Akihiko MORIYAMA

出版者

The Ornithological Society of Japan

雑誌

ORNITHOLOGICAL SCIENCE (ISSN:13470558)

巻号頁・発行日

vol.21, no.2, pp.155-163, 2022 (Released:2022-08-13)

参考文献数

21

被引用文献数

1

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Little Tern Sternula albifrons sinensis was been categorized as Endangered Class II by the 2020 Ministry of the Environment's Red List in Japan. For an effective conservation program for the taxon, the unit of conservation needs to be understood. In this study, we investigated genetic and morphological diversity as a clue to clarify the units to be protected. Blood samples were collected from 47 individuals in four different breeding sites in Japan (Tokyo, Chiba, Fukuoka, Okinawa). The nucleotide sequences of the control region of mitochondrial DNA were used to analyze their genetic diversity and structure. Basic morphological features were also compared. Nucleic acid base substitution, deletion, or insertion were identified at 30 sites of the 1029-bp sequence alignment of the control region, leading to identification of 30 different haplotypes. Genetic diversity was high in the four breeding populations, and haplotype frequencies showed no indication that specific genotypes were present at extreme frequencies. This suggests that the population of Little Tern nesting in Japan has been maintained without recent bottleneck events. The haplotype network formed two major haplotype groups from the 30 haplotypes. Haplotypes of one group were abundant in the Tokyo, Chiba, and Fukuoka populations. In contrast, those of the other group were frequent in the Okinawa population. Pairwise haplotype analysis between populations also revealed that the genetic variations at Okinawa differ from those of the remaining three populations. Furthermore, the Okinawa population showed different morphological characteristics compared to the Tokyo/Chiba populations. These results collectively suggest that the population of Little Terns in Japan is divided into at least two different populations.

著者

Shota DEGUCHI Yousuke UEDA Masumi HISANO

出版者

The Ornithological Society of Japan

雑誌

ORNITHOLOGICAL SCIENCE (ISSN:13470558)

巻号頁・発行日

vol.21, no.2, pp.133-143, 2022 (Released:2022-08-13)

参考文献数

60

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Many bird species with heterogeneous distribution are at risk of extinction. It is essential to identify and elucidate environmental factors explaining such distribution patterns to develop effective conservation strategies for those species. Yellow Bunting Emberiza sulphurata is an endangered migrant bird species exhibiting heterogeneous breeding distribution in Japan. Here we clarify the spatial distribution and the altitudinal range of the Yellow Bunting breeding range, and detect environmental factors (e.g., climate and topography) influencing their distribution pattern using an extensive dataset from the national breeding birds survey of Japan. The presence of Yellow Bunting during the breeding season (1997–2002) and six environmental factors (temperature, snow depth, elevation, tertiary layer, landslide area and forest edge density) were analyzed using maximum entropy models (MaxEnt). We found that Yellow Buntings were present in a higher proportion of survey grids in northern Honshu (the main island of Japan) than elsewhere in the country, and they mainly occurred in areas below 700 m above sea level. Moreover, the elevation of the occupied grids decreased with latitude. Temperature and snow depth were of greater importance (0.380 and 0.350, respectively) than other factors in explaining the breeding distribution of the Yellow Bunting. Our study highlighted the location of the core areas of the Yellow Bunting's breeding distribution, and demonstrated that lower temperature and deeper snow cover are the critical determinants of those areas. There may be abundant prey and fewer avian competitors, such as resident bird species, in colder regions, and more frequent snow avalanches and water from melting snow may establish the marshy and bushy habitat preferred by Yellow Buntings. These findings are essential for developing effective conservation strategies for the endangered Yellow Bunting. As past mass-trapping may have also influenced the heterogeneous distribution of the Yellow Bunting, this is an important avenue for future research from a different perspective.

著者

Ming-Tang SHIAO Mu-Chun YAO Mei-Chen CHUANG

出版者

The Ornithological Society of Japan

雑誌

ORNITHOLOGICAL SCIENCE (ISSN:13470558)

巻号頁・発行日

vol.21, no.2, pp.165-176, 2022 (Released:2022-08-13)

参考文献数

54

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In heterogeneous landscapes, birds may mistime their breeding attempts relative to local food abundance. How birds cope with this challenge has been little studied. In this study, we compared the provisioning behavior and nestling condition of the Green-backed Tit Parus monticolus nesting in a landscape mosaic comprised of native mixed-oak forests and exotic Japanese Cedar Cryptomeria japonica plantations. Parent birds in the larvae-poor plantations time their breeding as they do in the larvae-rich forests and have clutches of similar size. We found that parent birds were flexible in adjusting their criteria for prey choice on the basis of larval abundance. In early spring, in cedar plantations where larval abundance was low, male parents maintained constant nearby feeding trips to the early broods, just as they did in the mixed-oak forests, but reduced their dietary specialization on larvae, while female birds increased their provisioning frequency. Combining both parents' efforts, the early brood nestlings raised in the cedar plantations received food deliveries more frequently and with a higher proportion of non-larval prey than their counterparts did in the mixed-oak forests. In contrast, during late brood rearing, when larvae were abundant, both parents in the plantations foraged heavily on larvae at the expense of other prey, just as they did in the mixed-oak forests. We found that parent birds reared heavier nestlings as the contribution of large larvae to the diet increased. Moreover, the nestlings during early broods in the plantations had lower body weights than their counterparts in the mixed-oak forests. We suggest that the provisioning flexibility of Green-backed Tits helps them gather food for raising nestlings when their breeding attempts are less synchronized with the larval food supply in their habitat. As a result, they can breed successfully in the exotic cedar plantations.

著者

Yuji OKAHISA Yoshinori KANEKO Hisashi NAGATA Kiyoaki OZAKI

出版者

The Ornithological Society of Japan

雑誌

ORNITHOLOGICAL SCIENCE (ISSN:13470558)

巻号頁・発行日

vol.21, no.2, pp.145-154, 2022 (Released:2022-08-13)

参考文献数

48

被引用文献数

2

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An increasing number of reintroduction programs have been set up in recent years in an attempt to reintroduce once extinct species to their indigenous ranges and create self-sustaining populations. However, the released individuals often experience low mating success and fecundity. Appropriate rearing in captivity is considered essential for the successful post-release reproduction of captive-reared individuals. Low post-release mating success and fecundity are also issues in reintroduced Crested Ibis Nipponia nippon populations on Sado Island. These phenomena may be caused by the effects of hand-rearing in captivity, yet temporary hand-rearing is necessary when captive breeding, because rescuing embryos from mortality is essential due to the abnormal behavior of parent birds in captivity. Therefore, the establishment of rearing methods that temporarily protect embryos or chicks while limiting the negative effects of hand-rearing on breeding after release is needed. To overcome these challenges, we tested how captive rearing methods impact post-release courtship behavior, mating success, and fecundity of the ibis. By combining detailed rearing history in captivity with long-term post-release monitoring, we demonstrate that the initiation of parental rearing before the chicks' eyes open is the critical factor leading to increased pseudocopulation frequency and mating success in captive-born male ibis. Based on these results, not hand-rearing the chicks beyond the day after hatching would reduce the impact of hand-rearing on reproduction after release. Rearing methods that take into account the nestling period should be implemented to enhance the efficiency and reduce the cost of avian reintroduction projects.