著者
Asashiba Hideto
出版者
Elsevier
雑誌
Journal of Algebra (ISSN:00218693)
巻号頁・発行日
vol.334, no.1, pp.109-149, 2011-05-15
被引用文献数
42

Let G be a group acting on a category C. We give a definition for a functor F : C -> C' to be a G-covering and three constructions of the orbit category C/G, which generalizes the notion of a Galois covering of locally finite-dimensional categories with group G whose action on C is free and locally bonded defined by Gabriel. Here C/G is defined for any category C and we do not require that the action of G is free or locally bounded. We show that a G-covering is a universal "G-invariant" functor and is essentially given by the canonical functor C -> C/G. By using this we improve a covering technique for derived equivalences. Also we prove theorems describing the relationships between smash product construction and the orbit category construction by Cibils and Marcos (2006) without the assumption that the G-action is free. The orbit category construction by a cyclic group generated by an auto-equivalence modulo natural isomorphisms (e.g., the construction of cluster categories) is justified by a notion of the "colimit orbit category". In addition, we give a presentation of the orbit category of a category with a monoid action by a quiver with relations, which enables us to calculate many examples.
著者
ティアニー ロバート 大﨑 晴美 Tierney Robert Osaki Harumi
出版者
名古屋大学大学院文学研究科附属「アジアの中の日本文化」研究センター
雑誌
JunCture : 超域的日本文化研究 (ISSN:18844766)
巻号頁・発行日
vol.6, pp.28-41, 2015-03-27

In the early 20th century, Japanese writers, publicists, and politicians evinced a great deal of interest in Japan’s expansion toward the South Seas. In Nan’yō Yūki, Tsurumi Yusuke, a prominent advocate of expansion to the South, championed the mobilization of folklore to spark the interest of Japanese youth in the acquisition of overseas territories. Introduced to all school children from 1888 in elementary school readers, Momotarō was seen as a folk tale with particular relevance to the colonization of the South Seas. Nitobe Inazō thought of Momotarō as a pedagogical tool that could fire the imagination of Japan’s youth and spur them on to participate in colonial projects. In “Momotarō no mukashibanashi,” an essay published in 1907, he argued that the folktale expressed in allegorical form the irrepressible drive of the Japanese people to expand continuously toward the South. He placed particular stress on the geographical specificity of the folktale when he argued that the island of the ogres lay in the South Seas and that the treasures Momotarō brought back to Japan were the products of the tropics. Nearly twenty years after Nitobe’s essay was published, Akutagawa Ryūnosuke depicted Momotarō as a villain in a parody “Momotarō” that was published in the Sunday Mainichi in 1924. In this satire, Momotarō is a cruel invader who brutally attacks a group of humanized ogres living peacefully on an island paradise in the South Seas. At the end of this story, young ogres counterattack and fight to win the independence of their homeland. At the intersection of folklore, propaganda and parody, Momotarō emerges as a contested site for debating the Japanese imperial project in the South Seas and for defining self and other in the age of empire.
著者
森下 義隆
出版者
早稲田大学
巻号頁・発行日
pp.1-135, 2015

早大学位記番号:新7097
著者
鈴木 克治 川本 思心
出版者
科学技術コミュニケーション教育研究部門 : CoSTEP
雑誌
CoSTEP研修科 年次報告書
巻号頁・発行日
vol.1, no.2, pp.1-9, 2017-03

「出生前診断を受けますか?」「原子力発電所は必要だと思いますか?」「遺伝子組み換えを導入した食品を購入しますか?」義務教育を終え、自立した個人として社会へ歩み出す15 歳の生徒たちは、これらの問題にどう答えるだろう。筆者は中学校の理科教師として、発展し続ける科学技術とそれに付随する社会問題について系統的に授業で扱い、トランスサイエンスに関する知識・思考力・判断力を育成する必要があると考えた。そこで本活動では、中学校の理科でトランスサイエンスをテーマにした授業を実際に行い、どのような内容や時数・時期・配慮事項などが必要かを検討した。結果として、取り上げたいテーマに関わりの深い教科書の内容を学習した直後に、ト ランスサイエンスの授業(トランスサイエンス授業)を行うことが生徒にとって課題の理解が容易であることが分かった。一方で、授業テーマによっては、生徒のプライバシーに関わる可能性があり、内容や使用する言葉について十分な検討が必要となった。そのため、授業準備に多くの時間が割かれ、頻繁にトランスサイエンス授業を行うことはできなかった。今後はより簡便にトランスサイエンス授業を行う方法を検討する必要がある。