著者

Marie Delcourt précédé de La magie d'Héphaistos par André Green

出版者

Belles Lettres

巻号頁・発行日

1982

著者

Hatta Y. Iancu E. Mueller A. H. Triantafyllopoulos D. N.

出版者

Published for SISSA by Springer

雑誌

Journal of high energy physics (ISSN:10298479)

巻号頁・発行日

vol.2011, no.2, pp.065, 2011-02

被引用文献数

19

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We show that a source which radiates in the vacuum of the strongly coupled N = 4=4 SYM theory produces an energy distribution which, in the supergravity approximation, has the same space-time pattern as the corresponding classical distribution: the radiation propagates at the speed of light without broadening. We illustrate this on the basis of several examples: a small perturbation propagating down a steady string, a massless particle falling into AdS5, and the decay of a time-like wave-packet. A similar observation was made in Phys. Rev. D81 (2010) 126001 for the case of a rotating string. In all these cases, the absence of broadening is related to the fact that the energy backreaction on the boundary arises exclusively from the bulk perturbation at, or near, the boundary. This is so since bulk sources which propagate in AdS5 at the speed of light do not generate any energy on the boundary. We interpret these features as an artifact of the supergravity approximation, which fails to encode quantum mechanical fluctuations that should be present even in the strong coupling limit. We argue that such fluctuations should enter the dual string theory as longitudinal string fluctuations, which are not suppressed at strong coupling. We heuristically estimate the effects of such fluctuations and argue that they restore the broadening of the radiation, in agreement with expectations from both quantum mechanics and the ultraviolet/infrared correspondence.

著者

Thomas Carefoot adapted for Australian conditions by Rodney D. Simpson

出版者

University of Queensland Press

巻号頁・発行日

1985

著者

Mitzi D. Clark Danny W. Scott Longying Dong Sean P. McDonough

出版者

日本獣医皮膚科学会

雑誌

獣医臨床皮膚科 (ISSN:13476416)

巻号頁・発行日

vol.18, no.4, pp.233-237, 2012 (Released:2012-12-29)

参考文献数

29

被引用文献数

2

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健常な表皮には少数のT細胞が常在することが,これまでヒト,マウス,ウシおよびヒツジで報告されている。しかしネコやウマでは,同様の細胞は表皮や付属器上皮に認められない。そこでイヌの表皮や付属器上皮におけるリンパ球,CD3陽性細胞(T細胞)ならびにPax5陽性細胞 (B細胞)の存在を調べるため,29頭のイヌ胸背部から生検により採材した健常皮膚を組織学的および免疫組織化学的に解析した。その結果全ての組織において,前述の細胞はいずれも認められなかった。以上より,健常イヌの表皮にはリンパ球はほとんど認められないか,存在してもごくわずかな数であることが示唆された。

著者

Peng D. L. Sumiyama Kenji Yamamuro S. Hihara Takehiko Konno T. J. ヒハラ タケヒコ スミヤマ ケンジ 隅山 兼治 日原 岳彦 Sumiyama K. Hihara T.

出版者

American Institute of Physics

雑誌

APPLIED PHYSICS LETTERS (ISSN:00036951)

巻号頁・発行日

vol.74, no.1, pp.76-78, 1999-01-04

被引用文献数

33

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We have studied electrical conductivity, σ, and magnetoresistance in a CoO-coated monodispersive Co cluster assembly fabricated by a plasma-gas-aggregation-type cluster beam deposition technique. The temperature dependence of σ is described in the form of log σ vs 1/T for 7<T<80 K. The magnetoresistance ratio (ρ0-ρ3T)/ρ0 increases sharply with decreasing temperature below 25 K: from 3.5% at 25 K to 20.5% at 4.2 K. This marked increase (by a factor of 6) is much larger than those observed for conventional metal-insulator granular systems. These results are ascribed to the Coulomb blockade effect in the monodispersed cluster assemblies.

著者

edited by Pieter J.D. Drenth Henk Thierry Charles J. de Wolff

出版者

Psychology Press

巻号頁・発行日

1998

著者

Munoz A. Santisteban R. Rubio M. D. Vivo R. Aguera E. I. Escribano B. M. Castejon F. M.

出版者

社団法人日本獣医学会

雑誌

The journal of veterinary medical science (ISSN:09167250)

巻号頁・発行日

vol.59, no.9, pp.747-752, 1997-09-25

被引用文献数

2 11

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8頭のアンダルシア馬 (3〜4年齢) の適性が分析された. 動物は砂質の走路で種々の2段階からなる運動テストに供した. 第1段階は4スピード (4.17, 5.56, 6.96, 8.33m/sec) を段階的に増加させ, 各々の速さで, 1,000mの距離を最大下強度で走行させた. 動物は, 4スピードの間毎に2分休ませた. 第2段階は最大相の終了2分後, 1,000mを最大スピード走行させた. 心拍数, 血漿乳酸濃度, 速度, 血液のPCV, とpHのデータを得た. 最大心拍数, 最大速度, 乳酸濃度, 乳酸のピーク値, 最小pHと最大PCVは機能的指標として評価された. 馬を分別することを可能にする重要な要素はこれらの適性値と馬を管理するトレーナの情報と関連させることである. 馬を分別するために変動する最高の弁別手段は最小pH, 乳酸濃度, 最大心拍数, と最大速度であった. 最大PCVとの関連において, 8頭の馬に差は認められなかった. 運動耐性テストにおけるこれらの機能的指標の各々の影響が議論された.

著者

Mart Martin foreword by Paula D. McClain

出版者

Westview Press

巻号頁・発行日

1999

著者

Drury John Reicher Stephen D.

出版者

日経サイエンス

雑誌

別冊日経サイエンス (ISSN:09170626)

巻号頁・発行日

no.178, pp.4-13, 2011-05

著者

[organização: Ernesto d'Andrade Alain Kihm]

出版者

Edições Colibri

巻号頁・発行日

1992

著者

edited by L.D. Reynolds contributors P.K. Marshall ...

出版者

Clarendon Press

巻号頁・発行日

1983

著者

Tokiko KUSHIRO-BANKER Robert D. KEEGAN Michelle A. DeCOURCEY Tamara L. GRUBB Stephen A. GREENE Robert ARMSTRONG

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.12-0062, (Released:2012-09-14)

被引用文献数

2

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The objective of this study was to evaluate glomerular filtration rate (GFR) and the cardiovascular effects of the combination of tepoxalin (TPX) and medetomidine (MED) in dogs. Six healthy dogs of either sex (5 males, 1 female), aged 2.5 ± 2.2 years and weighing 14.7 ± 4.4 kg, were studied. Each dog received four randomized treatments with a minimum of 1 week between treatments: no medication as the control group (C); MED (750 μg/m2, intravenously [IV]); TPX (10 mg/kg orally for 3 days); and MT (TPX 10 mg/kg orally for 3 days plus MED 750 μg/m2, IV). Iohexol (300 mg iodine/kg, IV) was injected in all dogs in each treatment as an indicator of GFR. Blood samples for serum iohexol clearance analysis were collected before and 1, 2, 5, 10, 15, 20, 60, 120, 240, and 360 min after the iohexol administration. Rectal temperature, heart rate, respiratory rate, and direct arterial pressure (AP) were obtained before and 5, 10, 15, 20, 60, 120, 240, and 360 min after the iohexol injection. GFR did not differ between treatments. Heart rate was significantly lower in the MED and MT groups than in C or TPX. Mean AP was significantly higher with MT than TPX, but only at 5 min after the iohexol injection. TPX, MED and the combination of these two drugs do not alter GFR. The combination has minimal effect on cardiovascular variables at these doses in healthy dogs.

著者

Swisher R.D.

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.13, no.11, pp.626-629, 1964

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この8月, 東京で第2回国際水質汚濁研究会議が開催されたが, これに出席した米国モンサント会社のスイッシャー博士が, 日本家庭用合成洗剤工業会の依頼により, 去る8月27日標記の演題で講演された。本紹介はその日本訳であり同博士および日本家庭用合成洗剤工業会の厚意ある同意を得たものである。<BR>スイッシャー博士は同社で硫酸化, 染料中間体, 界面活性剤の研究に従事し, 現在SENIOR GROUP LEADERであり洗剤のソフト化問題の権威者である。

著者

di D. Sabbatucci ...

出版者

Jouvence

巻号頁・発行日

1979

著者

Cibelli Jose B. Lanza Robert P. West Michael D.

出版者

日経サイエンス

雑誌

日経サイエンス (ISSN:0917009X)

巻号頁・発行日

vol.32, no.2, pp.22-29, 2002-02

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2001年10月13日,アドバンスト・セル・テクノロジーの研究室。私たちが数カ月の実験を重ねて追い求めてきたものが,顕微鏡の視界に姿を現した。

著者

Rômulo D. NOVAES Reggiani V. GONÇALVES Maria do Carmo G. PELUZIO Antônio J. NATALI Izabel R. S. C. MALDONADO

出版者

(社)日本農芸化学会

雑誌

Bioscience, Biotechnology, and Biochemistry (ISSN:09168451)

巻号頁・発行日

vol.76, no.5, pp.1025-1027, 2012-05-23 (Released:2012-05-23)

参考文献数

20

被引用文献数

4 3

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3,4-Dihydroxycinnamic acid (3,4-DA) is a natural compound with high antioxidant potential found in various foods. This study found that animals administered with 3,4-DA had higher exercise tolerance, reduced blood lactate, and markers of hepatic oxidation. Blood glucose and antioxidant enzymes were not affected by this treatment. 3,4-DA may have applicability in reducing the fatigue associated with exercise.

著者

Sato Jun J. Wolsan Mieczyslaw Prevosti Francisco J. D'Elía Guillermo Begg Colleen Begg Keith Hosoda Tetsuji Campbell Kevin L. Suzuki Hitoshi

出版者

Elsevier

雑誌

Molecular Phylogenetics and Evolution (ISSN:10557903)

巻号頁・発行日

vol.63, no.3, pp.745-757, 2012-06

被引用文献数

126

---

We analyzed a concatenated (8492 bp) nuclear-mitochondrial DNA data set from 44 musteloids (including the first genetic data for Lyncodon patagonicus) with parsimony, maximum likelihood, and Bayesian methods of phylogenetic and biogeographic inference and two Bayesian methods of chronological inference. Here we show that Musteloidea emerged approximately 32.4-30.9 million years ago (MYA) in Asia, shortly after the greenhouse-icehouse global climate shift at the Eocene-Oligocene transition. During their Oligocene radiation, which proceeded wholly or mostly in Asia, musteloids diversified into four primary divisions: the Mephitidae lineage separated first, succeeded by Ailuridae and the divergence of the Procyonidae and Mustelidae lineages. Mustelidae arose approximately 16.1 MYA within the Mid-Miocene Climatic Optimum, and extensively diversified in the Miocene, mostly in Asia. The early offshoots of this radiation largely evolved into badger and marten ecological niches (Taxidiinae, Melinae, Mellivorinae, Guloninae, and Helictidinae), whereas the later divergences have adapted to other niches including those of weasels, polecats, minks, and otters (Mustelinae, Ictonychinae, and Lutrinae). Notably, and contrary to traditional beliefs, the morphological adaptations of badgers, martens, weasels, polecats, and minks each evolved independently more than once within Mustelidae. Ictonychinae (which is most closely related to Lutrinae) arose approximately 9.5-8.9 MYA, most likely in Asia, where it diverged into the Old World Ictonychini (Vormela, Poecilictis, Ictonyx, and Poecilogale) and New World Lyncodontini (Lyncodon and Galictis) lineages. Ictonychini presumably entered Africa during the Messinian Salinity Crisis (at the Miocene-Pliocene transition), which interposed the origins of this clade (approximately 6.5-6.0 MYA) and its African Poecilictis-Ictonyx-Poecilogale subclade (approximately 4.8-4.5 MYA). Lyncodontini originated approximately 2.9-2.6 MYA at the Pliocene-Pleistocene transition in South America, slightly after the emergence of the Panamanian land bridge that provided for the Great American Biotic Interchange. As the genera Martes and Ictonyx (as currently circumscribed) are paraphyletic with respect to the genera Gulo and Poecilogale, respectively, we propose that Pekania and Poecilictis be treated as valid genera and that "Martes" pennanti and "Ictonyx" libyca, respectively, be assigned to these genera.

著者

BACATIO C. D. KUBOTERA H. NANZYO M. YAMADA I.

出版者

東北大学

雑誌

Journal of integrated field science

巻号頁・発行日

vol.2, pp.19-27, 2005-03

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Intavas Techno Demo Farm is situated in high elevation of 1, 220 meters above sea level, with cool temperature and without pronounced dry season. The soil has low pH (5.24, average) and medium total carbon (4.3%) in the surface. Phosphorus retention is relatively high (77.5%, ave.), low cation exchange capacity (12 cmol(+) kg^<-1> ave.) and low base saturation (13%, ave.). Clay content is 45% (ave.) and bulk density of 1.1 Mg m^<-3> in average. Micrograph of the thin section of Bw_1 horizon reveals that void content is very small (6%). Voids are vughy and are not interconnected. In crossed nicol there were no clay illuviation seen. Total element analysis revealed that Intavas soils have about 60% Al_2O_3 but very low in SiO_2, 16.05% only. This indicates an advanced weathering that Si has been leached out and Al precipitated. As to the primary minerals, opaque minerals predominate with the presence of hornblende in heavy minerals. For light minerals, weathered particles predominate with the presence of mica, quartz and volcanic glass. Selective dissolution analysis reveals that Al_o is relatively high as compared to Fe_o and Si_o. However, these elements have the same pattern that irregularly decrease with depth and increase in the buried A horizon. Fe_p is relatively high followed by Al_p that significantly decreases with depth. The data show that amorphous materials are higher in surface and buried A horizons. Electron micrograph of BA shows no defined form that can be considered as amorphous materials. Bw_2 shows angular shapes that correspond to gibbsites and halloysite as indicated by spheroid configurations. X-ray diffraction pattern exhibits small and weak peak at 7 A in BA horizon. This peak corresponds to the presence of halloysite. The sharp and strong peaks at 4.8 A and 4.3 A in BA and Bw_2 horizons correspond to gibbsite. According to the selective dissolution analysis, electron microscopy and X-ray diffraction analysis, the dominant clay mineral in BA horizon is gibbsite and followed by amorphous material and small amount of halloysite. On the other hand, gibbsite dominate Bw_2 horizon followed by halloysite. Based on the physical, chemical, mineralogical and thin section analyses, the TDF soil can be classified as fine clayey, acid, isothermic, gibbsittic, Oxic Dystrudepts. It can be considered as soil with partial rejuvenation by volcanic ash material. As compared with soils without rejuvenation, this soil has higher total carbon, phosphorus retention, lower bulk density relatively, high amorphous materials in the surface and halloysite in the subsoils.Philippine soilsOxic Dystrudeptstephravolcanic glasshalloysitegibbsitedark and high humus surface

著者

甲元 啓介 伊藤 靖夫 秋光 和也 柘植 尚志 児玉 基一朗 尾谷 浩 DUNKLE L.D. GILCHRIST D. SIEDOW J.N. WOLPERT T.J. JOHAL G. TURGEON B.G. MACKO V. 田平 弘基 YODER O.C. BRIGGS S.P. WALTON J.D. 宮川 恒 朴 杓允 荒瀬 栄 BRONSON C.R. 小林 裕和 中島 広光

出版者

鳥取大学

雑誌

国際学術研究

巻号頁・発行日

1996

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1) リンゴ斑点落葉病菌の宿主特異的AM毒素の生合成に関与する遺伝子: 環状ペプチド合成酵素(CPS)遺伝子のユニバーサルPCRプライマーを利用して得たPCR産物は他のCPS遺伝子と相同性が認められ、サザン解析の結果、AM毒素生産菌に特異的に存在する配列であることが判明した。本遺伝子断片を用いた相同的組込みによる遺伝子破壊により、毒素非生産形質転換体が得られ、さらに野生株ゲノムライブラリーをスクリーニングして、完全長のAM毒素生合成遺伝子(AMT)のクローニングに成功した。AMTは13KbのORFをもち、イントロンはなく、毒素構成アミノ酸に対応するアミノ酸活性化ドメインが認められた。2) ナシ黒斑病菌のAK毒素生合成遺伝子: REMIによる遺伝子タギング法を用いて毒素生産菌に特異的に存在する染色体断片から、AKT1(脂肪酸合成)、AKT2,AKT3(脂肪酸改変),AKTR(発現調節因子)、AKTS1(AK毒素生合成特異的)の5つの遺伝子を単離した。また、AK毒素と類似の化学構造を有するAF及びACT毒素の生産菌も、本遺伝子ホモログを保有することが明らかとなった。3) トウモロコシ北方斑点病菌の環状ペプチドHC毒素の生合成遺伝子TOX2の解析が進み、特異的CPS遺伝子HTS1のほかに、TOXA(毒素排出ポンプ)、TOXC(脂肪酸合成酵素b*)、TOXE(発現調節因子)、TOXF(分枝アミノ酸アミノ基転移酵素)、TOXG(アラニンラセミ化酵素)などが明らかとなった。4) トウモロコシごま葉枯病菌のポリケチドT毒素の生合成遺伝子TOX1は、伝統的遺伝学手法では単一のローカスと考えられていたが、今回の分子分析でTOX1AとTOX1Bの2つのローカスからなり、それぞれ異なった染色体上に存在することが明確となった。5) ACR毒素に対する特異的感受性因子を支配している遺伝子(ACRS)を、ラフレモンmtDNAからクローニングした。この遺伝子は大腸菌で発現した。6) リンゴ斑点落葉病感受性(AM毒素のレセプター)遺伝子を求めて、プロテオーム解析によりAM毒素感受性リンゴに特異的に発現しているタンパク質(SA60)を検出した。7) 宿主特異的毒素の生合成遺伝子は水平移動で特定の菌糸に導入されたと推論できた。

著者

Selezion A. Hambir Jens Franken Dana D. Dlott

出版者

日本高圧力学会

雑誌

高圧力の科学と技術 (ISSN:0917639X)

巻号頁・発行日

vol.7, pp.891-896, 1998-03-03 (Released:2009-08-07)

参考文献数

18

被引用文献数

2 5

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Using a moderate energy picosecond pulse laser, 4 GPa shock waves are reproducibly generated at a high repetition rate in molecular solids. These tiny but powerful shocks are termed “nanoshocks”. Time resolved vibrational spectra with high signal to noise can be obtained using coherent anti-Stokes Raman scattering (CARS). Applications of nanoshocks in research and industry are discussed briefly. Results are presented on a molecular crystal, anthracene, and an energetic material, NTO. The temperature and pressure of the shocked material, and the risetime and velocity of the shock front are determined spectroscopically. Ultrafast material relaxation processes are investigated.