著者

Nguyen Van THUAN Satoshi KISHIGAMI Teruhiko WAKAYAMA

出版者

日本繁殖生物学会

雑誌

Journal of Reproduction and Development (ISSN:09168818)

巻号頁・発行日

vol.56, no.1, pp.20-30, 2010 (Released:2010-03-05)

参考文献数

136

被引用文献数

35 96

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It has now been 13 years since the first cloned mammal Dolly the sheep was generated from somatic cells using nuclear transfer (SCNT). Since then, this technique has been considered an important tool not only for animal reproduction but also for regenerative medicine. However, the success rate is still very low and the mechanisms involved in genomic reprogramming are not yet clear. Moreover, the NT technique requires donated fresh oocyte, which raises ethical problems for production of human cloned embryo. For this reason, the use of induced pluripotent stem cells for genomic reprogramming and for regenerative medicine is currently a hot topic in this field. However, we believe that the NT approach remains the only valid way for the study of reproduction and basic biology. For example, only the NT approach can reveal dynamic and global modifications in the epigenome without using genetic modification, and it can generate offspring from a single cell or even a frozen dead body. Thanks to much hard work by many groups, cloning success rates are increasing slightly year by year, and NT cloning is now becoming a more applicable method. This review describes how to improve the efficiency of cloning, the establishment of clone-derived embryonic stem cells and further applications.

著者

溝口 肇 宮武 昌史 布施 孝志

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌D(産業応用部門誌) (ISSN:09136339)

巻号頁・発行日

vol.133, no.7, pp.700-706, 2013-07-01 (Released:2013-07-01)

参考文献数

19

被引用文献数

2 2

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A train scheduling method to minimize the trip time of passengers under restricted electrical energy is investigated in this paper. This method assumes that the consumed electrical energy of one railway artery, all the vehicles of which are local trains, is restricted to a certain value. The endogenous variables of this method are the running time for each interstation, the consumed energy for each interstation, and the number of vehicles. The solution depends on the Kuhn-Tucker theorem on the constraints of both the number of vehicles and the total amount of consumed energy per unit time. This method enables us to determine the running time for each interstation and the number of vehicles according to the solution, which gives priority to small changes in the running time in interstations over decreasing the number of vehicles. Numerical examples verify the effect of reducing the time increment caused by the restriction in some artery without reducing the number of vehicles. The results also imply that the effect on passengers of each energy-saving method differs for every traffic artery.

著者

白石 哲

出版者

日本哺乳類学会

雑誌

哺乳動物学雑誌: The Journal of the Mammalogical Society of Japan (ISSN:05460670)

巻号頁・発行日

vol.3, no.5, pp.125-127, 1967-08-01 (Released:2010-08-25)

参考文献数

1

著者

平山 英夫 佐波 俊哉 波戸 芳仁

出版者

一般社団法人 日本原子力学会

雑誌

日本原子力学会和文論文誌 (ISSN:13472879)

巻号頁・発行日

pp.J12.043, (Released:2013-06-27)

参考文献数

4

被引用文献数

4 6

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Gamma-ray pulse-height distributions from widely distributed Cs-134 and Cs-137 calculated using the EGS5 Monte Carlo code with the transformation of a system consisting of a plane isotropic source and a unit sphere detector into a system consisting of a point isotropic source and a plane detector were compared with measured ones. Results agree well in terms of both spectrum shape and absolute value. Spectra at a height of 1 m from widely distributed I-131, Cs-134 and Cs-137 were studied by EGS5 calculation. It was clarified that the contribution of scattered gamma rays is dominant within the total gamma-ray flux. The contributions of the scattered gamma rays to ambient dose equivalents and effective dose were also studied.

著者

廣田 照幸

出版者

一般社団法人 日本教育学会

雑誌

教育学研究 (ISSN:03873161)

巻号頁・発行日

vol.54, no.4, pp.371-381, 1987-12-30 (Released:2009-01-13)

参考文献数

33

著者

大前 彰吾

出版者

日本神経回路学会

雑誌

日本神経回路学会誌 (ISSN:1340766X)

巻号頁・発行日

vol.15, no.4, pp.289-297, 2008-12-05 (Released:2009-03-16)

参考文献数

13

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この講義録は2007年ASCONEにて,吉田正俊先生が行われた「盲視(Blindsight)が明らかにする「気づき」(awareness)の脳内情報処理」の講義の記録である.講義では「意識」や「気づき」といったあいまいな概念をどうやって検証できる形に持ってゆくか,という問いを設定し,盲視(Blindsight)という現象の紹介を通して「気づき」に迫る手法について講義·議論が交わされた.

著者

赤井 弘

出版者

社団法人 繊維学会

雑誌

繊維学会誌 (ISSN:00379875)

巻号頁・発行日

vol.63, no.9, pp.P_238-P_243, 2007 (Released:2007-10-10)

著者

吉澤 一家 中村 文雄

出版者

日本珪藻学会

雑誌

Diatom (ISSN:09119310)

巻号頁・発行日

vol.11, pp.9-15, 1995-12-31 (Released:2012-12-11)

参考文献数

25

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The growth characteristics and extracellular organic matter of Synedra acus Kützing, which often causes problems to the public water supply, were investigated by using an artificial culture medium. Synedra acus was removed from the water of a reservoir; the cultivations were carried out between 10-25°C with continuous light illumination, under cool-white fluorescent lamps at 4,500 lx and 2,000 lx.Under these conditions, the higher the temperature and the brighter the light became, the more rapidly the diatoms grew. With the growth of the diatoms, extracellular organic matter, which included saccharides, increased at a 40% ratio. Following the Logarithmic phase, extracellular saccharides were yielded at a ratio of 11-12% to the dry algae.The composition of these saccharides was recorded as follows: Rib + Ara: Fuc: Xyl: Man: Gal: Glu = 4.3: 1.8: 7.1: 8.6: 9.4: 68. As a result, saccharides produced by Synedra acus were characterized by a high concentration of Glu and the absence of Rha.

著者

松島 巖

出版者

公益社団法人 腐食防食学会

雑誌

Zairyo-to-Kankyo (ISSN:09170480)

巻号頁・発行日

vol.43, no.10, pp.597-598, 1994-10-15 (Released:2009-11-25)

参考文献数

6

著者

藤谷 忠昭

出版者

関東社会学会

雑誌

年報社会学論集 (ISSN:09194363)

巻号頁・発行日

vol.2001, no.14, pp.212-223, 2001-06-05 (Released:2010-04-21)

参考文献数

26

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This paper attempts to clarify the significance of Lumann's system theory in a case of bureaucratic pathology. Luhmann [1964] pointed out the functions of informal behavioral expectations in formal organizations. Applying this idea to Japanese bureaucracy, it is demonstrated that the over evaluation of thoughtfulness, “Takt, ” is one of the most important factors accounting for contemporary problems. Using more recent works, this paper examines Luhmann's system theory as a frame for analysis of bureaucracy.

著者

田港 朝彦

出版者

一般社団法人 日本内科学会

雑誌

日本内科学会雑誌 (ISSN:00215384)

巻号頁・発行日

vol.89, no.8, pp.1570-1577, 2000-08-10 (Released:2008-06-12)

参考文献数

19

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厳格な血糖コントロールは,細小血管合併症の発症,進展を抑制する.しかし,前増殖網膜症,増殖網膜症を有する例に血糖降下療法を開始する場合には, HbAlcが極めて高い場合, HbAlc 8.0%までは速やかに下げても良いが,それ以後は緩徐に血糖を下げて,低血糖を起こさないなどの配慮が要る.長期間放置例や,糖尿病罹病治療歴が不明の初診患者の場合も同様である.また,治療開始前から治療中の眼科医との緊密な連係が必須である.その他,高血圧,高脂血症,喫煙,肥満などのリスクファクターを取り除くこと,などが重要である.

著者

佐竹 健治

出版者

公益社団法人 日本地震学会

雑誌

地震 第2輯 (ISSN:00371114)

巻号頁・発行日

vol.44, no.Supplement, pp.99-112, 1991-07-24 (Released:2010-03-11)

参考文献数

82

被引用文献数

1

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Recent studies on tsunamis are reviewed. Theoretical studies on tsunami generation and propagation have been done both on coupled and decoupled systems of ocean and solid earth. Both approaches are proved to be equivalent. Hydrodynamic formulation, on the basis of decoupling model, is discussed in detail. Several models have been proposed for the mechanism of tsunami earthquakes that produce abnormally large tsunamis compared to seismic waves. After the 1983 Japan Sea tsunami, some progress has been made on tsunami research. Among them are re-examination of tide-gauge system, studies on free oscillation of the Japan Sea and newly developed inversion technique of tsunami waveforms to estimate complex fault motion. Large-scale realistic computation of tsunamis can be made very rapidly and has potential usage for tsunami warning system. These seismology-related problems are described.

著者

黒田 耕嗣 松山 直樹

出版者

一般社団法人 日本数学会

雑誌

数学 (ISSN:0039470X)

巻号頁・発行日

vol.59, no.1, pp.91-105, 2007 (Released:2011-01-14)

参考文献数

24

著者

阪田 省二郎

出版者

一般社団法人 電子情報通信学会

雑誌

電子情報通信学会 基礎・境界ソサイエティ Fundamentals Review (ISSN:18820875)

巻号頁・発行日

vol.1, no.3, pp.3_44-3_57, 2008-01-01 (Released:2011-03-01)

参考文献数

66

被引用文献数

1

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代数的な誤り訂正符号の基本的な考え方,方法について,最近の進展も含めて概説する.線形代数にプラスアルファの代数を加えたもの,代数的な構成が符号の効率的な利用(符号化,復号,ハードウェア化)に直結しているものを,狭義の「代数的符号」と呼び,そのような符号の構成と利用, 特に復号法について述べる.代数的な方法の基礎となるのは,有限体上の(1変数,または,多変数)多項式, あるいは,(一次元, または, 多次元)配列による符号の表現である.復号において,線形再帰関係とグレブナー基底の概念が重要な働きをする.

著者

飯高 茂

出版者

一般社団法人 日本数学会

雑誌

数学 (ISSN:0039470X)

巻号頁・発行日

vol.29, no.4, pp.334-349, 1977-12-22 (Released:2008-12-25)

参考文献数

18

著者

飯高 茂

出版者

一般社団法人 日本数学会

雑誌

数学 (ISSN:0039470X)

巻号頁・発行日

vol.34, no.4, pp.289-300, 1982-10-26 (Released:2008-12-25)

参考文献数

22

著者

黒野 勘六

出版者

公益財団法人 日本醸造協会

雑誌

日本釀造協會雜誌 (ISSN:0369416X)

巻号頁・発行日

vol.29, no.9, pp.2-7, 1934 (Released:2011-11-04)

著者

杉江 正敏

出版者

日本武道学会

雑誌

武道学研究 (ISSN:02879700)

巻号頁・発行日

vol.30, no.Supplement, pp.53-53, 1997 (Released:2012-11-27)

著者

栄久庵 憲司

出版者

一般社団法人 日本人間工学会

雑誌

人間工学 (ISSN:05494974)

巻号頁・発行日

vol.19, no.4, pp.175-178, 1983-08-15 (Released:2010-03-11)

著者

五十嵐 且治 木下 剛 田代 順孝

出版者

公益社団法人 日本造園学会

雑誌

ランドスケープ研究 (ISSN:13408984)

巻号頁・発行日

vol.68, no.5, pp.763-768, 2005 (Released:2006-05-08)

参考文献数

14

被引用文献数

1 1

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There have been many residents who want to live in super-high rise buildings from where wonderful birds eye vies could be enjoyed. They may intend to have quite new landscape experiences from their rooms, and this would initiate the demand of constructing more high rise buildings for residential use.This study reffere to the tendency of residents' preference of green spaces through analysis of landscape attitude of residents through evaluation of landscape values of green space seen from their own rooms in the said building. Research was conducted in the site of new development project of JHDC in Minatoku, Tokyo. The results may indicate that the values of green spaces should be evaluated by the degree of landscape preference in relation to the expectation of green spaces as sources of new urban landscapes and object of bird eye view experiences from inside the rooms. The height of rooms would be thought as key factors of sense of satisfaction to the landscape and green spaces to bee seen from the high rise rooms.When residents live in the room from where valuable parks and green spaces, they may satisfy the quality of green space and that would attract them to go to the green space and enjoy the environment there. The degree of looking down angle, 10 may degree in this case was considered as critical.