نتایج جستجو برای: jordan delta double derivation

تعداد نتایج: 338083  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2000
L Xue G Farrugia S M Miller C D Ferris S H Snyder J H Szurszewski

Nitric oxide (NO) and carbon monoxide (CO) seem to be neurotransmitters in the brain. The colocalization of their respective biosynthetic enzymes, neuronal NO synthase (nNOS) and heme oxygenase-2 (HO2), in enteric neurons and altered intestinal function in mice with genomic deletion of the enzymes (nNOS(Delta/Delta) and HO2(Delta/Delta)) suggest neurotransmitter roles for NO and CO in the enter...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده علوم 1392

یک $k$-رنگ آمیزی یالی در گراف $g$ تابعی مانند $f:e(g)longrightarrow l$ می باشد به طوری که $|l|=k$ و برای هر دو یال مجاور $e_1$ و $e_2$ در $g$، داشته باشیم $f(e_1) eq f(e_2)$. گراف $g$، $k$-رنگ پذیر یالی است اگر برای $g$ یک $k$-رنگ آمیزی یالی وجود داشته باشد. عدد رنگی یالی گراف $g$ که با نماد $chi(g)$ نمایش داده می شود، کوچکترین مقدار $k$ است که $g$ دارای $k$-رنگ آمیزی یالی است. مشهورترین قضی...

2015
Erkki J. Brändas

In this communication we take up the age-old problem of the possibility to incorporate quantum jumps. Unusually, we investigate quantum jumps in an extended quantum setting, but one of rigorous mathematical significance. The general background for this formulation originates in the Balslev-Combes theorem for dilatation analytic Hamiltonians and associated complex symmetric representations. The ...

Journal: :Journal of virology 1974
K Barta P Tavernier J Zissler

We describe the isolation and genetic characterization of point mutations in gene delta, including a temperature-sensitive mutation (del(206)). Genetic methods enable the extraction of a delta mutation from the triple mutant (del,red,gam) and the construction of new genotypes, including del,red and del,gam double mutants. Tests of plating efficiency indicate gene delta is essential for normal p...

Journal: :Functional Analysis and Its Applications 2021

We consider a class of Jacobi matrices with unbounded entries in the so-called critical (double root, Jordan block) case. prove formula which relates spectral density matrix to asymptotics orthogonal polynomials associated it.

2012
Karina Villela

delta modeling [6] (ADM) describes the possible ways a product line code base can be structured by delta modeling so that it supports automated product derivation. It puts deltas, which can modify (software) products, into a partial order which restricts their application. If delta x comes earlier in this order than y, then x has to be applied before y. If there is no order between x and y, and...

2006
Yoshihiko Konno

In this paper the problem of estimating a covariance matrix parametrized by an irreducible symmetric cone in a decision-theoretic set-up is considered. By making use of some results developed in a theory of finite-dimensional Euclidean simple Jordan algebras, Bartlett’s decomposition and an unbiased risk estimate formula for a general family of Wishart distributions on the irreducible symmetric...

Journal: :Symmetry 2021

The derivation of conservation laws and invariant functions is an essential procedure for the investigation nonlinear dynamical systems. In this study we consider a two-field cosmological model with scalar fields defined in Jordan frame. particular Brans-Dicke field theory second quintessence minimally coupled to gravity. For apply first time new technique without application variational symmet...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1981
C H Lee H Mizusawa T Kakefuda

Conformation changes of the double-stranded DNA helix in response to dehydration were investigated by monitoring, by agarose gel electrophoresis, the linking number of covalently closed circular DNA generated by ligation of linear DNA in the presence of different organic solvents or different temperatures. It was found that: (i) The DNA helix unwinds upon addition of certain organic solvents or...

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