検索結果 47561 件
| タイトル（別表記） | What enables hibernation? : insights from a mammalian hibernator, Syrian hamster |
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| フルテキストURL | poalas_034_010.pdf |
| 著者 | 山口 良文| |
| 抄録 | Hibernation is an adaptive strategy for surviving during periods with little or no food availability, by profoundly reducing the metabolic rate and the core body temperature (Tb). Mammalian hibernators store fat extensively in white adipose tissues (WATs) during pre-hibernation period to prepare for hibernation. Thus, they undergo adaptive body remodelling in autumn, the pre-hibernation period, prior to hibernation, whereas little is known about the physiological and molecular mechanisms of the pre-hibernation remodelling. Syrian hamsters (Mesocricetus auratus) are facultative hibernators that can hibernate irrespective of seasons when exposed to prolonged short photoperiod and cold ambient temperature (SD-Cold) conditions. We found that before the initiation of hibernation, the body mass of Syrian hamsters decreased below a threshold, indicating that hibernation in this species depends on body condition. Global profiling of gene expression in various tissues of animals during the pre-hibernation period and hibernation period identified adaptive changes for hibernation at molecular level. Thus, Syrian hamsters as a model animal to study hibernation provide us a unique and convenient opportunity to analyse molecular and physiological mechanisms of adaptive pre-hibernation remodelling under a laboratory condition. |
| 出版物タイトル | 岡山実験動物研究会報 |
| 発行日 | 2018-04 |
| 巻 | 34巻 |
| 開始ページ | 10 |
| 終了ページ | 16 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Extracorporeal Excretion of Mercury from Mice Using Molybdenum Complex |
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| フルテキストURL | poalas_034_005.pdf |
| 著者 | 愛甲 博美| |
| 抄録 | Extracorporeal excretion of mercury by two molybdenum complexes was investigated using mice after injection of metallic mercury or mercuric ion. After injection of metallic mercury into mice, the mice that received the incomplete cubane-type sulfur-bridged nitrilotriacetato molybdenum (IV) complex ([Mo3S4(Hnta)3]2-, referred to as the NTA complex) had the highest mercury content in their urine on the first day, followed by L-cysteine solution and then water. On the other hand, after injection of mercuric ion, the urinary mercury excretion from the mice that received various concentrations of the incomplete cubane-type sulfur-bridged cysteinato molybdenum (V) complex ([Mo2O2S2(cys)2]2-, referred to as the CYS complex) showed a higher level than that of mice that received water (control group). The mercury content in the heart and lungs of the group that received the CYS complex solution decreased in comparison with that of the group that received the water. At the same time, the mercury level in the kidneys for the CYS complex solution group showed the tendency to increase relative to the group that received water. |
| 出版物タイトル | 岡山実験動物研究会報 |
| 発行日 | 2018-04 |
| 巻 | 34巻 |
| 開始ページ | 5 |
| 終了ページ | 9 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Transcription factor Runx3 in the mouse hypothalamo-pituitary-gonadal system |
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| フルテキストURL | poalas_034_002.pdf |
| 著者 | 高橋 純夫| |
| 抄録 | Runx3 is a transcription factor that belongs to the Runx family. Female Runx3 knockout (Runx3−⁄−) mouse was anovulatory and infertile. Ovarian transplantation experiment suggested that lack of ovulation in Runx3−⁄− mice was caused by alteration of gonadotropin secretion in Runx3−⁄− mice. Cyp11a1 mRNA expression was less in Runx3−⁄− mouse ovaries than in wt ones. Hypothalamic Gnrh1 mRNA was increased, and Kiss1 mRNA expression in the anteroventral periventricular nucleus was decreased, but Kisspeptin mRNA in the arcuate nucleus was increased in Runx3-/- mice. Pituitary Fshb mRNA levels were increased in Runx3−⁄− mice. Cholesterol side-chain cleavage enzyme gene (Cyp11a1) expression was decreased in ovaries of Runx3−⁄− mice. These findings suggest that anovulation in Runx3−⁄− mice was partly due to the alterations in hypothalamus-pituitary-ovary system. Runx3 plays a key role in female reproduction through alteration of gonadotropin secretion. |
| 出版物タイトル | 岡山実験動物研究会報 |
| 発行日 | 2018-04 |
| 巻 | 34巻 |
| 開始ページ | 2 |
| 終了ページ | 4 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| フルテキストURL | poalas_034_001.pdf |
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| 著者 | 国枝 哲夫| |
| 出版物タイトル | 岡山実験動物研究会報 |
| 発行日 | 2018-04 |
| 巻 | 34巻 |
| 開始ページ | 1 |
| 終了ページ | 1 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| フルテキストURL | poalas_034_contents.pdf |
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| 著者 | 岡山実験動物研究会| |
| 出版物タイトル | 岡山実験動物研究会報 |
| 発行日 | 2018-04 |
| 巻 | 34巻 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| フルテキストURL | mjou_060_233_240.pdf |
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| 著者 | Ghazi, Nour| |
| 抄録 | The main topic of this paper is to generalize the problem of Beckmann-Black for pro nite groups. We introduce the Beckmann-Black problem for complete systems of finite groups and for unramified extensions. We prove that every Galois extension of profi nite abelian group over a ψ-free fi eld is the specialization of some tower of regular Galois extensions of the same group. |
| キーワード | Inverse Galois theory algebraic covers |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 233 |
| 終了ページ | 240 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_221_231.pdf |
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| 著者 | Hayata, Takahiro| Ishikawa, Masao| |
| 抄録 | The aim of this paper is to answer the question in Remark 8.2 of Takahiro Hayata, Harutaka Koseki, and Takayuki Oda, Matrix coefficients of the middle discrete series of SU(2; 2), J. Funct. Anal. 185 (2001), 297{341, by giving an elementary proof of certain identities on binomials. |
| キーワード | binomial-coefficient identity middle discrete series real semi-simple Lie groups. |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 221 |
| 終了ページ | 231 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_209_219.pdf |
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| 著者 | Talo, Özer| Bas̨ar, Feyzi| |
| 抄録 | Móricz and Rhoades determined the necessary and sufficient Tauberian conditions for certain weighted mean methods of summability in [Acta. Math. Hungar. 102(4) (2004), 279{285]. In the present paper, we deal with the necessary and sufficient Tauberian conditions for the Ar method which was introduced by Bas̨ar in [Fırat Üniv. Fen & Müh. Bil. Dergisi 5(1)(1993), 113{117]. |
| キーワード | Summability by Ar methods one-sided and two-sided Tauberian conditions slowly oscillating sequences |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 209 |
| 終了ページ | 219 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_175_208.pdf |
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| 著者 | Minamide, Arata| |
| 抄録 | In this paper, we prove that the etale fundamental group of a hyperbolic curve over an arithmetic field [e.g., a finite extension field of Q or Qp] or an algebraically closed field is indecomposable [i.e., cannot be decomposed into the direct product of nontrivial profinite groups]. Moreover, in the case of characteristic zero, we also prove that the etale fundamental group of the configuration space of a curve of the above type is indecomposable. Finally, we consider the topic of indecomposability in the context of the comparison of the absolute Galois group of Q with the Grothendieck-Teichmuller group GT and pose the question: Is GT indecomposable? We give an affirmative answer to a pro-l version of this question |
| キーワード | indecomposability etale fundamental group hyperbolic curve con guration space Grothendieck-Teichmuller group |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 175 |
| 終了ページ | 208 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_165_173.pdf |
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| 著者 | Minami, Haruo| |
| 抄録 | We present a uni ed proof of some known results on the framed bordism classes of low rank simple Lie groups. |
| キーワード | framed manifolds simple Lie groups stable homotopy groups |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 165 |
| 終了ページ | 173 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_155_164.pdf |
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| 著者 | Shimizu, Kenichi| |
| 抄録 | We study a class of integers called SP numbers (Sum Prime numbers). An SP number is by de nition a positive integer d that gives rise to a prime number (a + b)=gcd(4; 1 + d) from every factorization d = ab. We also discuss properties of SP numbers in relations with arithmetic of imaginary quadratic elds (least split primes, exponents of ideal class groups). Further we point out that special cases of SP numbers provide the problems of distribution of prime numbers (twin primes, Sophi-Germain primes, quadratic progressions). Finally, we consider the problem whether there exist in nitely many SP numbers. |
| キーワード | SP number prime number imaginary quadratic fi eld |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 155 |
| 終了ページ | 164 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_137_153.pdf |
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| 著者 | Shigekawa, Ichiro| |
| 抄録 | We discuss a non-symmetric diffusion process on the Wiener space. The process we consider is generated by A = L + b, L being the Ornstein-Uhlenbeck operator and b being a vector eld. Under suitable integrability condition for b, we show the existence of associated diffusion process. We also investigate the domain of the generator. Further we consider a similar problem in the nite dimensional Euclidean space. |
| キーワード | non-symmetric Dirichlet form Wiener space logarithmic Sobolev inequality generator domain |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 137 |
| 終了ページ | 153 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_109_135.pdf |
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| 著者 | Namba, Ryuya| |
| 抄録 | Recently, Ishiwata, Kawabi and Kotani [4] proved two kinds of central limit theorems for non-symmetric random walks on crystal lattices from the view point of discrete geometric analysis developed by Kotani and Sunada. In the present paper, we establish yet another kind of the central limit theorem for them. Our argument is based on a measure-change technique due to Alexopoulos [1]. |
| キーワード | crystal lattice central limit theorem non-symmetric random walk (modi ed) harmonic realization |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 109 |
| 終了ページ | 135 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_091_108.pdf |
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| 著者 | Sato, Kenichi| Yoshino, Yuji| |
| 抄録 | We shall generalize the theory of primary decomposition and associated prime ideals of nitely generated modules over a noetherian ring to general objects in an abelian R-category where R is a noetherian commutative ring. |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 91 |
| 終了ページ | 108 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_073_089.pdf |
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| 著者 | Wu, Tsung-Hsuan| |
| 抄録 | We give the stable splittings of the complex connective K-theory of the classifying space BSO(2n + 1), n≥1. |
| キーワード | stable splitting complex connective K-theory classifying space Adams spectral sequence |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 73 |
| 終了ページ | 89 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_059_072.pdf |
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| 著者 | Trimẻche, Khalifa| |
| 抄録 | We prove in this paper the absolute continuity of the representing measures of the transmutation operators Vk, tVk and VkW, tVkW associated respectively to the Cherednik operators and the Heckman-Opdam theory attached to the root system of type BC2. |
| キーワード | Transmutation operators Absolute continuity of the representing measures Cherednik operators Heckman-Opdam theory |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 59 |
| 終了ページ | 72 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_037_058.pdf |
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| 著者 | Masuda, Toshihiko| |
| 抄録 | We give a survey of Tomita-Takesaki theory and the development of analysis of structure of type III factors, which started from Tomita-Takesaki theory. |
| キーワード | Tomita-Takesaki theory type III factors injective factors |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 37 |
| 終了ページ | 58 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | mjou_060_001_036.pdf |
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| 著者 | Hemmi, Yutaka| |
| 抄録 | Higher homotopy in the theory of H-spaces started from the works by Sugawara in the 1950th. In this paper we review the development of the theory of H-spaces associated with it. Mainly there are two types of higher homotopies, homotopy associativity and homotopy commutativity. We give explanations of the polytopes used as the parameter spaces of those higher forms. |
| キーワード | H-space higher homotopy associativity An-form higher homotopy commutativity associahedra multiplihedra permutohedra resultohedra permuto-associahedra cyclohedra |
| 発行日 | 2018-01 |
| 出版物タイトル | Mathematical Journal of Okayama University |
| 巻 | 60巻 |
| 号 | 1号 |
| 出版者 | Department of Mathematics, Faculty of Science, Okayama University |
| 開始ページ | 1 |
| 終了ページ | 36 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| 資料タイプ | 学術雑誌論文 |
| オフィシャル URL | http://www.math.okayama-u.ac.jp/mjou/| |
| 言語 | 英語 |
| 著作権者 | Copyright©2018 by the Editorial Board of Mathematical Journal of Okayama University |
| フルテキストURL | iseki34.pdf iseki34_image.pdf |
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| 著者 | 山口 雄治| 岩﨑 志保| 野崎 貴博| 高椋 浩史| 能城 修一| 沖 陽子| 江川 達也| |
| 出版物タイトル | 岡山大学構内遺跡発掘調査報告 |
| 発行日 | 2018-03-30 |
| 巻 | 34巻 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| Pages | 105, 図版19 |
| フルテキストURL | iseki033.pdf iseki033_image.pdf |
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| 著者 | 南 健太郎| 野崎 貴博| 能城 修一| 江川 達也| 白石 純| 沖 陽子| |
| 出版物タイトル | 岡山大学構内遺跡発掘調査報告 |
| 発行日 | 2018-02-28 |
| 巻 | 33巻 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| Pages | 97, 図版36 |