著者
鍋島 直樹
出版者
日本評論社
雑誌
一橋論叢 (ISSN:00182818)
巻号頁・発行日
vol.104, no.6, pp.p840-862, 1990-12

論文タイプ||論説(経済学部特集号 = Economics)
著者
内田 明彦 内田 紀久枝 川上 泰 村田 義彦
出版者
公益社団法人 日本獣医師会
雑誌
日本獣医師会雑誌 (ISSN:04466454)
巻号頁・発行日
vol.52, no.11, pp.715-721, 1999
被引用文献数
6

1990~1998年に神奈川県中央部と東京都西多摩郡日の出町に生息するタヌキ<I>Nyctereutes Procyonoides umerrinus</I>の内部寄生虫を調査した. 45頭中44頭 (97.8%) に蠕虫類の寄生が認められ, 線虫類11種 (タヌキ回虫<I>Toxocara tanuki</I>, クシマタヌキ鉤虫<I>Ancylostoma kuskimaense</I>, ミヤザキタヌキ鉤虫<I>Artkrostoma miyazakiense</I>, 猫糞線虫<I>Strongyloides Planiceps</I>, 犬鞭虫<I>Trichuris vulpis</I>, 犬糸状虫<I>Dirofilaria immitis, Capillaria felis-cati, C. putorii, Tetragompmms melis, Molineus lagerae, Trichuris sp.</I>), 吸虫類4種 (横川吸虫<I>Metagonimus yokogauai</I>, 浅田棘口吸虫<I>Eckinostoma hortense, Concinnum ten, Stepkanoprora sp.</I>), 条虫類2種 (マンソン裂頭条虫<I>Spirometra erinaceieuropaei</I>, 瓜実条虫<I>Dipylidium caninum</I>) の計17種で, 1頭あたりの寄生種は2~9種であった. ヒトに感染する可能性のある種は9種であった.
著者
山口 佳寿博
出版者
慶應医学会
雑誌
慶應醫學 (ISSN:03685179)
巻号頁・発行日
vol.81, no.1, pp.23-30, 2004-03-25
参考文献数
36

緒論COPDの疾患概念と定義喫煙関運COPDの分子発症機序COPD発症と喫煙感受性規定遺伝子喫煙量規定遺伝子講座
著者
内嶋 善兵衛
出版者
一般社団法人 日本治山治水協会
雑誌
水利科学 (ISSN:00394858)
巻号頁・発行日
vol.15, no.4, pp.62-85, 1971-10-01 (Released:2020-07-24)
参考文献数
26
著者
Takafumi Okukubo Yoshiaki Bando Masaki Onishi
出版者
Information Processing Society of Japan
雑誌
Journal of Information Processing (ISSN:18826652)
巻号頁・発行日
vol.30, pp.42-51, 2022 (Released:2022-01-15)
参考文献数
36
被引用文献数
1

This paper presents a statistical method combined with a neural network for efficient traffic prediction from a limited amount of training data. The traffic prediction during a large-scale event is essential to maintain the safety of event participants. The conventional methods for predicting traffic time series, however, cannot be utilized because the rare nature of the large-scale events prevents us from preparing a sufficient amount of training data. To efficiently train traffic prediction from a limited amount of training data, we propose a pattern-aware regression method that reduces the number of model parameters by interpreting traffic data as a weighted sum of latent behavior patterns. The proposed method trains a neural regression model to predict the weights of these patterns from the event information instead of directly predicting the traffic time series. The behavior patterns are jointly estimated during the training in a Bayesian manner to avoid overfitting. We performed experiments with foot traffic data recorded at a real soccer stadium and show that the proposed method outperforms the conventional direct regression methods. We also demonstrate an application of our method for predicting travel time from the stadium to the nearest highway interchange, which outperforms a popular commercial service.
著者
高橋 知子
出版者
一般財団法人 日本国際政治学会
雑誌
国際政治 (ISSN:04542215)
巻号頁・発行日
vol.2019, no.197, pp.197_120-197_135, 2019-09-25 (Released:2020-04-16)
参考文献数
51

This paper explores its research question on the behavior of China upon its participation in the creation of an international law, where institutions of different issue areas intersect. It establishes a starting point for theoretical research on the relation between the fluidity of international institutions and their effect on states’ interests.As to its potential contribution, firstly, since earlier studies that focus on the institutions’ “evolutions” treat states as homogeneous entities, it is valuable to provide the view from states, who utilize the institutions to pursue their own interests. Secondly, while earlier research on China and international institutions concentrates on the socialization of China in the “western” institutions, this paper highlights institutional fluidity and complexity, and the aspect of China utilizing them from their side. China is a country worth taking up, since it is a state with increasing importance in world order.Methodologically, this research takes up the United Nations Convention on the Law of the Sea (UNCLOS), which regulates maritime order, and the related international negotiations in establishing an environmental institution on “Marine Biodiversity of Areas beyond National Jurisdiction (BBNJ)” under UNCLOS. Qualitative analysis is conducted on the international and Chinese arguments by looking into related minutes, statements and analyses. Related institutions, organizations and international law arguments are also referred to.Having traced international and Chinese arguments on BBNJ initiation, the conclusion is as follows; firstly, they all attempted to preserve their status quo maritime order as the norm, which I labeled as the “first trend”. Meanwhile, there was a “second trend” that aimed at restricting sovereignty by the international institution, which began as an exceptional argument on environmental control over areas beyond national jurisdiction (ABNJ). However, when it was time the regulation details be specified, it became clear that they had to agree on concrete points, making it difficult to keep the norm intact. The clash between the two trends is ongoing in the international arena, as can be seen in the discussion on the creation of Area-Based Management Tools, and the specification of Marine Genetic Resources.China was reluctant in undertaking the “second trend” idea at the outset, but gradually committed to its elaboration, as the “third trend” argument on sheer environmental protection also transformed to an issue of maritime order, which questioned whether upholding sovereignty serves as the primary way to maximize state interests. The Chinese interest and the BBNJ process should be further examined by looking at its domestic decision-making process, and the impact of its traditional maritime disputes with surrounding neighbors. Further longitudinal studies should also serve to show how the rising power faces international institutions. However, overall, the “three trends” perspective serve as a heuristic tool to probe the relation of the change in international institutions and state interests.
著者
柘植 盛男 宮林 達也 田中 誠之
出版者
公益社団法人 日本化学会
雑誌
工業化学雑誌 (ISSN:00232734)
巻号頁・発行日
vol.74, no.9, pp.1896-1898, 1971-09-05 (Released:2011-09-02)
参考文献数
11
被引用文献数
1

フェノール樹脂およびフェノール化合物-テトラヒドロフラン系について, ゲルパーミエーションクロマトグラフィー (GPC) の分離機構に関連する実験をおこなった。この系においては分子サイズによる分離効果よりも分子内水素結合による分離効果がより大きく働いていると考えられる結果が得られた。すなわち分子内水素結合を形成する分子サイズが大きいハイオルトフェノールノボラック多量体の溶出容量は同じ分子最で分子内水素結合を形成しない且つ分子サイズの小さいランダムノボラック樹脂の溶出容量より大きいことが認められた。この原因としては分子内水素結合により拘束されたフェノール性水酸基とテトラヒドロフランとの相互作用が, ラソダムフェノールノボラック樹脂のそれよりも小さくなり極限粘度 [η] が低下し, その結果 Benoit のパラメーター [η]・M (Mは分子量) が小さくなり溶出容量が大きくなったものと考えられる。同様にレゾール樹脂中のメチロールフェノール異性体についても, メチロール基とフェノール性水酸基との間に分子内水素結合を形成する異性体の溶出容量は分子内水素結合を形成しない異性体のそれよりも, より大きいことが認められた。またこの現象は一般のフェノール化合物についても, またメチルエチルケトンを溶媒として用いた場合にも認められた。
著者
伊藤 誠
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.76, no.1, pp.79-99, 2021 (Released:2021-11-20)

Japanese capitalism has formed a vicious circle among multiple socio-economic crises under neoliberalism. This paper reexamines the historical origin of these crises, their structural relations, and identify their core, fundamental issues. It will be shown also how three different types of natural disasters also deepen socio-economic crises, thereby endangering the metabolic reproduction of human lives and nature. How can we overcome such an age of deep crises? More than ever, it is indispensable to reconsider the historical significance and task of transforming neoliberal capitalism in the world and in Japan. (1) Six multiple crises in a structural, vicious circle The inflationary crisis of 1973-75 initiated a long downturn of Japanese capitalism. In addition to the excessive supply of currencies and credit in the process of transition from the Bretton Woods international monetary system to the floating exchange rates system, over-accumulation of industrial capital in relation to the limitation of flexible supply of both labor power within major capitalist economies and primary products such as crude oil in the world market inevitably caused sharp rises in wages and prices of primary products and squeezed profit rates as a fundamental factor behind the crisis. In this regard the inflationary crisis revealed anew the basic contradiction of capitalist economy in the commodification of labor power, together with the instability of credit mechanisms. (View PDF for the rest of the abstract.)
著者
大町 達夫
出版者
東京都立大学都市研究センター
雑誌
総合都市研究 (ISSN:03863506)
巻号頁・発行日
no.47, pp.p77-89, 1992-12

本研究は、東京の学校地震防災体制について、その現状を調査し改善の手がかりを見つけようとしたものである。現状分析には、1988年から1990年にかけて実施した3つのアンケート調査を用いた。これらは先ず、被害経験、災害危険度、防災活動度などに違いのある1都10県の298校から得た防災体制に関する回答、次は東京都23区のうち17区役所から得た防災指導に関する回答、最後は東京都23区内の全小中学校のうち686校から得た最近の地震被害に関する回答である。これらの調査によれば、東京の学校防災体制は全国平均よりも高いレベルにある。特に公立小・中学校では区からの指導もあって防災訓練に力点を置き、毎月1回以上実施している学校も少なくない。一方、危険防止対策は全国平均よりも低いレベルで、実際、震度4程度の地震でも大田区や世田谷区では10%以上の学校で被害が発生している。また、避難地に指定されている学校は約40%もあり、避難住民の安全確保を学校に期待している自治体職員は多い。しかし、避難地に指定されている学校と指定されていない学校とで、防災体制の現状に違いは見られない。要するに、東京の学校では、学内の危険防止対策にもっと積極的に取り組む必要がある。
著者
吉村 俊平
出版者
一般社団法人 日本鉱物科学会
雑誌
岩石鉱物科学 (ISSN:1345630X)
巻号頁・発行日
vol.49, no.2, pp.51-57, 2020 (Released:2020-11-03)
参考文献数
35

Despite its water-rich nature, silicic magma often erupts calmly to discharge bubble-poor lava without accompanying violent explosion. To allow a water-rich magma to avoid explosion, gas phase that forms as a result of decompressive exsolution needs to escape efficiently to the outside of the magma. However, mechanism of this gas escape has long been unclear, mainly because direct evidence of gas pathways is rarely preserved in natural lava samples. In this paper I show that chlorine-content mapping analysis successfully visualizes the gas pathways hidden in groundmass glass. This chlorine mapping analysis was developed based on an idea that chlorine diffusivity in rhyolitic melt is so low that chlorine heterogeneity formed through degassing processes may survive for a long time without being homogenized. Timescales of degassing processes are estimated by applying a diffusion model to the observed heterogeneity. Results of my recent chlorine diffusion experiments are also presented, as the chlorine diffusivity is the key for interpreting the observed heterogeneity.