• 제목/요약/키워드: involution

검색결과 170건 처리시간 0.026초

쥐 유선(乳腺)의 임신(姙娠), 필유(泌乳) 및 휴지기(休止期)의 조직계량학적연구(組織計量學的硏究) (Quantitative Histological Studies on the Mammary Gland of Rats during Pregnancy, Lactation and Involution)

  • 이정길
    • 대한수의학회지
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    • 제17권2호
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    • pp.83-86
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    • 1977
  • 쥐 유선(乳腺)의 임신(姙娠), 필유(泌乳) 및 휴지기(休止期)에 있어서 조직계량학적변화(組織計量學的變化)는 다음과 같았다. 유선상피(乳腺上皮)의 발달(發達)은 임신(姙娠) 18일(日)에 있어서 분만시(分娩時)(100%로 했을 때)에 비(比)하여 42%에 달(達)하였다. 이유후(離乳後) 10일(日)에 있어서 유선(乳腺)의 지방(脂肪), 기질(基質) 및 상피(上皮)의 양적(量的)인 비율(比率)은 임신(姙娠) 10일(日)에 있어서와 비슷하였다. 임신(姙娠), 필유(泌乳) 및 휴지기중(休止期中)의 주요(主要) 구성성분(構成成分)의 변화(變化)는 지방(脂肪) 및 상피(上皮)에 있었고 기질(基質)은 관계치 않았다.

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On Commutativity of σ-Prime Γ-Rings

  • DEY, KALYAN KUMAR;PAUL, AKHIL CHANDRA;DAVVAZ, BIJAN
    • Kyungpook Mathematical Journal
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    • 제55권4호
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    • pp.827-835
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    • 2015
  • Let U be a ${\sigma}$-square closed Lie ideal of a 2-torsion free ${\sigma}$-prime ${\Gamma}$-ring M. Let $d{\neq}1$ be an automorphism of M such that $[u,d(u)]_{\alpha}{\in}Z(M)$ on U, $d{\sigma}={\sigma}d$ on U, and there exists $u_0$ in $Sa_{\sigma}(M)$ with $M{\Gamma}u_0{\subseteq}U$. Then, $U{\subseteq}Z(M)$. By applying this result, we generalize the results of Oukhtite and Salhi respect to ${\Gamma}$-rings. Finally, for a non-zero derivation of a 2-torsion free ${\sigma}$-prime $\Gamma$-ring, we obtain suitable conditions under which the $\Gamma$-ring must be commutative.

누승적 미아놈 논리 IMIAL의 몇몇 공리적 확장 (Some axiomatic extensions of the involutive mianorm Logic IMIAL)

  • 양은석
    • 논리연구
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    • 제20권3호
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    • pp.313-333
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    • 2017
  • 이 글에서 우리는 누승적 미아놈 논리 IMIAL의 몇몇 공리적 확장 체계의 표준 완전성을 다룬다. 이를 위하여, 먼저 누승적 미아놈에 바탕을 둔 일곱 개의 논리 체계를 소개한다. 각 체계에 상응하는 대수적 구조를 정의한 후, 이들 체계가 대수적으로 완전하다는 것을 보인다. 다음으로, 이 논리 체계들 중 네 체계가 표준적으로 완전하다는 것 즉 단위 실수 [0, 1]에서 완전하다는 것을 제네이-몬테그나 방식의 구성을 사용하여 보인다.

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p-EQUIVARIANT SPINC-STRUCTURES

  • Cho, Yong-Seung;Hong, Yoon-Hi
    • 대한수학회보
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    • 제40권1호
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    • pp.17-28
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    • 2003
  • Let X be a closed, oriented, Riemannian 4-manifold with ${{b_2}^+}(x)\;>\;1$ and of simple type. Suppose that ${\sigma}\;:\;X\;{\rightarrow}\;X$ is an involution preserving orientation with an oriented, connected, compact 2-dimensional submanifold $\Sigma$ as a fixed point set with ${\Sigma\cdot\Sigma}\;{\geq}\;0\;and\;[\Sigma]\;{\neq}\;0\;{\in}\;H_2(X;\mathbb{Z})$. We show that if _X(\Sigma)\;+\;{\Sigma\cdots\Sigma}\;{\neq}\;0$ then the $Spin^{C}$ bundle $\={P}$ is not $\mathbb{Z}_2-equivariant$, where det $\={P}\;=\;L$ is a basic class with $c_1(L)[\Sigma]\;=\;0$.

INVOLUTIONS AND THE FRICKE SPACES OF SURFACES WITH BOUNDARY

  • Kim, Hong Chan
    • 대한수학회지
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    • 제51권2호
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    • pp.403-426
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    • 2014
  • The purpose of this paper is to find expressions of the Fricke spaces of some basic surfaces which are a three-holed sphere ${\sum}$(0, 3), a one-holed torus ${\sum}$(1, 1), and a four-holed sphere ${\sum}$(0, 4). For this goal, we define the involutions corresponding to oriented axes of loxodromic elements and an inner product <,> which gives the information about locations of axes of loxodromic elements. The signs of traces of holonomy elements, which are calculated by lifting a representation from PSL(2, $\mathbb{C}$) to SL(2, $\mathbb{C}$), play a very important role in determining the discreteness of holonomy groups.

담츱산류의 항스트레스 효능에 관한 연구 (A Study on Anti-Stress Activities of Cholic Acid Derivatives)

  • 조태순;이종찬;조성익;이선미
    • Biomolecules & Therapeutics
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    • 제6권3호
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    • pp.232-241
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    • 1998
  • This study was done to investigate whether cholic acid derivatives have anti-stress activity in various stress models. Two cholic acid derivatives, ursodeoxycholic acid (UDCA) and tauroursodeoxycholic acid (WDCA), were used. physical, psychological, chemical and environmental stress models were performed. Adrenal weight, serum glucose levels and ALP activity were elevated in restraint stress model, but this elevation was prevented by UDCA treatment. Moreover, UDCA and TUDCA inhibited exploratory and spontaneous movements in oscillation stress model. In alcohol-induced stress model, TUDCA improved rotarod performance. UDCA and TUDCA significantly reduced the involution of lymphoid organs and the increment of WBC counts in cold stress model. These findings suggest that choric acid derivatives have antistress effects in various stress models.

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비유기간에 따라 murine 림프조직에서 생산되는 lymphokine의 양상에 관한 연구 (Murine lymphokines production in lymphoid organs during the various stages of lactation)

  • 류시윤
    • 대한수의학회지
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    • 제34권1호
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    • pp.19-24
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    • 1994
  • 비유중기, 건유초기 및 임신말기의 C3H/HeN 마우스의 비장, 장간막림프절, 말초림프절(액와, 상완 및 샅림프절)유래 림프구에서 생산되는 lymphokine의 양을 비교하였다. 비장에서의 IL-2 생산양은 임신말기와 비유중기에 낮았지만, IL-4, IL-6와 $IFN_{\gamma}$의 생산양은 임신말기와 건유초기에 높았다. 말초림프절에서의 IL-4, IL-6 및 $IFN_{\gamma}$ 생산양은 임신말기와 건유초기에 높았지만, IL-2의 생산양은 임신말기, 비유중기 및 건유초기에 각각 감소하였다. 장간막림프절에서의 IL-4 생산양은 임신말기와 비유중기에 각각 증가하였으나, IL-2의 생산양은 임신말기에 감소하였다. 이와같이 전반적으로 건유초기와 임신말기에 IL-2의 생산양은 낮지만, IL-4, IL-6와 $IFN_{\gamma}$의 생산양이 높은 결과는 이 시기에 유방염의 발생비율이 높은 것과 연관성이 있는 것으로 추정된다.

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A KIND OF NORMALITY RELATED TO REGULAR ELEMENTS

  • Huang, Juan;Piao, Zhelin
    • 호남수학학술지
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    • 제42권1호
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    • pp.93-103
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    • 2020
  • This article concerns a property of Abelain π-regular rings. A ring R shall be called right quasi-DR if for every a ∈ R there exists n ≥ 1 such that C(R)an ⊆ aR, where C(R) means the monoid of regular elements in R. The relations between the right quasi-DR property and near ring theoretic properties are investigated. We next show that the class of right quasi-DR rings is quite large.

전경 물체 추출 기법을 이용한 전기트리 영상에서 열화 측정 (Degradation Measurement from Electrical Tree Image Using Foreground Object Extracting Skill)

  • 김형균;정기봉;고석만;오무송;김태성
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 추계학술대회 논문집
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    • pp.270-273
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    • 2001
  • Electrical tree is studied widely by manufacture state of insulating material fare and blazing fire diagnosis system of use in phenomenon of part discharge that happen for main cause of dielectric breakdown of equipment for electric power. Use process that draw tree pattern here measuring above zero to study special quality of this electricity tree, real-time processing by image processing is proposed because reproduction of tree blazing fire process drops and pattern of tree is difficult correct quantification of tree growth by existent visual observation by involution. This research presents general process that need in image processing of tree blazing fire, and that remove various noises that happen in above zero by measuring electrical tree dividing background and complete view in measured above zero taking advantage of specially proposed complete view object abstraction techniques effectively and quantification of tree becomes easy naturally, can apply to dielectric breakdown estimate because can chase growth process of tree.

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