著者
Ikeda Tsutomu
巻号頁・発行日
2019-12

This is the second version (ver. 2) of Marine Zooplankton Metabolic Data, first published in 2008. Metabolic rate data, in terms of oxygen consumption, ammonia-N excretion or phosphate-P excretion, represent those determined on fresh wild zooplankton collected from various locations of the world’s oceans with a sealed-chamber method (Omori and Ikeda 1984, Ikeda et al. 2000) at near in situ temperatures. All rate values listed are raw data, not a mean of each species being used for various statistical analyses in the papers in Reference. Tables in the ver. 2 are more extensive than in the first version; they present more detailed entries of data collected since 2008. New entries of the data and corrections of minor typographical errors found in the first version are shown in red. Notes for Table 1: ”Subcode” is to separate the data of the same species into sex (F: female. M: male), developmental stage (juv: juvenile, C: copepodid stage for Copepoda), maturity condition, or collections of different dates and/or locations. “Taxon” was added for each “Species”. Notes for Table 2; “Depth” where zooplankton collected was represented by the midpoint of vertical ranges of the nets towed. For mesopelagic and bathypelagic zooplankton collected by using nets without closing mechanism, the depth of the epipelagic zone (200m) took into account in this calculation. In addition to “Dry mass”, “carbon (C)”, nitrogen (N)” and phosphorus (P)” being used as a measure of body mass in the first version, “Wet mass” and “Ash content” were given as “Supplemental data” for some species. For readers who wish to know more details about the data of interest, please refer original papers in Reference in Table 1. I hope that the data are useful to advance our knowledge about zooplankton physiology and energetics toward better understanding of their dynamic roles in matter cycling and energy flow in marine pelagic ecosystems.
著者
小林 由子
出版者
北海道大学高等教育推進機構国際教育研究部
雑誌
日本語・国際教育研究紀要
巻号頁・発行日
vol.23, pp.37-57, 2020-03

日本語・日本文化研修留学生制度は、日本国外で日本語・日本文化を専攻する学部学生が原則として1年間日本の大学に留学するものである。2019年現在、全国73大学において大使館推薦国費留学生を中心に受け入れが行われている。北海道大学では、1981年から受け入れが始まり、その後、言語文化部に日本語・日本文化研修コース(本稿では修了要件を備えた一連の科目群を「コース」と称する)が設置された。1991年に留学生センターが設置されて以降、数回の制度改革を経て、2019年現在、1年コース定員40名、半年コース定員各期20名、年間合計定員80名と、日本語・日本文化研修プログラムとしては全国最大の規模の受け入れを行っている。この制度改革には、北海道大学における留学生教育受け入れ制度の変化・協定大学との学生交流強化・カリキュラムおよび履修科目の見直し・内規改訂など様々な側面がある。本稿では、資料にもとづいて北海道大学における日本語・日本文化研修プログラムの変遷と制度改編について詳述し、北海道大学における日本語教育の歴史的変遷、および日本語・日本文化コースの展望について考察する。
著者
西本 昌弘
出版者
関西大学東西学術研究所
雑誌
関西大学東西学術研究所紀要 (ISSN:02878151)
巻号頁・発行日
vol.43, pp.1-23, 2010-04-01

In the academic circles of ancient Japanese history, the Tokharians, who drifted to the Japanese shores in 654 and 657, were thought to be the Dvaravatians who lived in a region that is now part of Thailand. Some believed that they were from Persia or the Tokhara Islands. However, in Chinese historical documents, including Buddhist texts, Tokhara was only used to refer to the Tokharians in the Western regions and thus, distinguished them from Dvaravati in Thailand and Persia. It is difficult to believe that the ancient Japanese did not know this.The Tokharians lived in the upper and middle valleys of the Amu, a region now part of northern Afghanistan. In the first half of the seventh century, the West Turk ruled Tokhara, and the Ashina royal family lived in the Katsu (near Kundus) and governed it. After 628, an insurrection erupted in West Turk and Islamic movements closed to Tokharistan in around 650. Around this time, the Ashina started to aggressively approach Tang. Tokhara vigorously approached Tang in the 650s.Caravans of Tokharian merchants traveled to Tang with the visit of the Tokharian delegate. The Tokharians who reached the Japanese shores are assumed to be some of them.
著者
山口 満 Yamaguchi Mitsuru
出版者
筑波大学大学院博士課程教育学研究科
雑誌
教育学研究集録 (ISSN:03867927)
巻号頁・発行日
no.24, pp.7-14, 2000-10

1. 「フレッツェルのテーゼ」とは フレッツェル(Fretwell, Elbert, K. 1978〜1963)は、マッコーン(McKown, Harry, C. 1892〜1963)やジョーンズ(Jones, Arthur, J. 1871〜1963)とともに、20世紀前半の時期のアメリカを代表する教科外活動の研究者である。
著者
五十嵐 進
出版者
北海道大学北方生物圏フィールド科学センター森林圏ステーション
雑誌
北方森林保全技術 (ISSN:13445855)
巻号頁・発行日
vol.35, pp.10-14, 2018-02-28

森林圏ステーションでは、神戸大学佐藤拓哉准教授が主研究者となっているハリガネムシの生態学的研究についての協力を苫小牧研究林、雨龍研究林、天塩研究林で実施している。ここでは協力の概要について、苫小牧研究林を例に紹介する。
著者
Williams Paul H. Ito Masao Matsumura Takeshi Kudo Iwao Williams Paul H. Ito Masao Matsumura Takeshi Kudo Iwao
出版者
Research Faculty of Agriculture, Hokkaido University
雑誌
Insecta matsumurana. New series : journal of the Faculty of Agriculture Hokkaido University, series entomology. (ISSN:00201804)
巻号頁・発行日
vol.66, pp.115-151, 2010-10

W ILLIAMS, P. H. , h o, M., M ATSUMURA, T. and K UDO, T., 20 10. The bumblebees of the Nepal Himalaya (Hymenoptera: Apidae). I ns. fIlatsum. n. s. 66: 1 [j- 151 , 36 figs, 3 tabs. Among 2,762 spec imens of bumblebees (genus Bombus) from Nepal, a total of 34 species is recorded. Bombus abnormis, B. branickii, B. grahami, B. personaflls, and B. presslis are recorded from Nepal for the first time. None of the species is endemic. A key to females, colour-pattern diagrams for females, and distribution maps are provided. Bumblebees in Nepal tend to have colour patterns of the thoracic dorsum that are black at low e levations, unbanded pale at mid elevations, and banded at high e levations, with the pale pal1s tending to become lighter at higher elevations. A western, an eastern, and a larger widespread fauna are described. Key words. Bumblebee, Bombus, taxonomy, di stribution, e levati on, a lti tude, pollinators. Nepal.
著者
山田 致知
出版者
金沢大学十全医学会
雑誌
金沢大学十全医学会雑誌 (ISSN:00227226)
巻号頁・発行日
vol.66, no.1, pp.1-15, 1960-07-30
著者
Nakaya Kazuhiro White William T. Ho Hsuan-Ching
出版者
Nature Publishing Group
雑誌
Scientific reports (ISSN:20452322)
巻号頁・発行日
vol.10, pp.12280, 2020-07-23
被引用文献数
11

Two modes of oviparity are known in cartilaginous fishes, (1) single oviparity where one egg case is retained in an oviduct for a short period and then deposited, quickly followed by another egg case, and (2) multiple oviparity where multiple egg cases are retained in an oviduct for a substantial period and deposited later when the embryo has developed to a large size in each case. Sarawak swellshark Cephaloscyllium sarawakensis of the family Scyliorhinidae from the South China Sea performs a new mode of oviparity, which is named "sustained single oviparity", characterized by a lengthy retention of a single egg case in an oviduct until the embryo attains a sizable length. The resulting fecundity of the Sarawak swellshark within a season is quite low, but this disadvantage is balanced by smaller body, larger neonates and quicker maturation. The Sarawak swellshark is further uniquely characterized by having glassy transparent egg cases, and this is correlated with a vivid polka-dot pattern of the embryos. Five modes of lecithotrophic (yolk-dependent) reproduction, i.e. short single oviparity, sustained single oviparity, multiple oviparity, yolk-sac viviparity of single pregnancy and yolk-sac viviparity of multiple pregnancy were discussed from an evolutionary point of view.
著者
相澤 秀太郎
出版者
Tohoku University
巻号頁・発行日
2016-09-26

要約のみ
著者
田尾 雅夫
出版者
京都大學經濟學會
雑誌
經濟論叢 (ISSN:00130273)
巻号頁・発行日
vol.157, no.2, pp.85-88, 1996-02