نتایج جستجو برای: gamma ring

تعداد نتایج: 244692  

2012
T. Asir T. Tamizh Chelvam

T. Tamizh Chelvam and T. Asir [15] studied the intersection graph of gamma sets in the total graph of a commutative Artin ring. The intersection graph ITΓ(R) of gamma sets in the total graph of a commutative ring R, is the undirected graph with vertex as collection of all γ-sets in the total graph of R and two distinct vertices u and v are adjacent if and only if u ∩ v 6= ∅. In this paper, we c...

Journal: :Journal of bacteriology 1999
K Miyauchi Y Adachi Y Nagata M Takagi

Sphingomonas (formerly Pseudomonas) paucimobilis UT26 utilizes gamma-hexachlorocyclohexane (gamma-HCH), a halogenated organic insecticide, as a sole source of carbon and energy. In a previous study, we showed that gamma-HCH is degraded to chlorohydroquinone (CHQ) and then to hydroquinone (HQ), although the rate of reaction from CHQ to HQ was slow (K. Miyauchi, S. K. Suh, Y. Nagata, and M. Takag...

Journal: :The Journal of comparative neurology 2002
Nicholas J Strausfeld

Studies of the mushroom bodies of Drosophila melanogaster have suggested that their gamma lobes specifically support short-term memory, whereas their vertical lobes are essential for long-term memory. Developmental studies have demonstrated that the Drosophila gamma lobe, like its equivalent in the cockroach Periplaneta americana, is supplied by a special class of intrinsic neuron-the clawed Ke...

Journal: :The EMBO journal 2003
Charu Chaudhry George W Farr Matthew J Todd Hays S Rye Axel T Brunger Paul D Adams Arthur L Horwich Paul B Sigler

Productive cis folding by the chaperonin GroEL is triggered by the binding of ATP but not ADP, along with cochaperonin GroES, to the same ring as non-native polypeptide, ejecting polypeptide into an encapsulated hydrophilic chamber. We examined the specific contribution of the gamma-phosphate of ATP to this activation process using complexes of ADP and aluminium or beryllium fluoride. These ATP...

Journal: :The Journal of organic chemistry 2004
Cara L Jenkins Guoliang Lin Jingqi Duo Deepa Rapolu Ilia A Guzei Ronald T Raines Grant R Krow

Among the proteinogenic amino acids, only proline is a secondary amine and only proline has a saturated ring. Electronegative substituents on C-4 (that is, C(gamma)) have a substantial effect on the trans/cis ratio of the prolyl peptide bond and the pucker of the pyrrolidine ring. 2-Azabicyclo[2.1.1]hexane is, in essence, a proline analogue with two C(gamma) atoms, one in each of the two preval...

2012
F. Zimmermann O. S. Brüning Y. Papaphilippou D. Schulte P. Sievers A. Variola F. Zomer H.-H. Braun

The full physics program of a future Large Hadron electron Collider (LHeC) [1] requires both pe and pe− collisions. For a pulsed 140-GeV or an ERL-based 60-GeV Linac-Ring LHeC this implies a challenging rate of, respectively, about 1.8 × 10 or 4.4 × 10 e/s at the collision point, which is about 300 or 7000 times the rate previously obtained, at the SLAC Linear Collider (SLC). We consider provid...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1371

the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...

Journal: :bulletin of the iranian mathematical society 2013
n. ashrafi e. nasibi

let r be an associative ring with unity. an element a in r is said to be r-clean if a = e+r, where e is an idempotent and r is a regular (von neumann) element in r. if every element of r is r-clean, then r is called an r-clean ring. in this paper, we prove that the concepts of clean ring and r-clean ring are equivalent for abelian rings. further we prove that if 0 and 1 are the only idempotents...

Journal: :bulletin of the iranian mathematical society 0
n. ashrafi semnan university e. nasibi semnan university

let r be an associative ring with unity. an element a in r is said to be r-clean if a = e+r, where e is an idempotent and r is a regular (von neumann) element in r. if every element of r is r-clean, then r is called an r-clean ring. in this paper, we prove that the concepts of clean ring and r-clean ring are equivalent for abelian rings. further we prove that if 0 and 1 are the only idempotents...

Journal: :bulletin of the iranian mathematical society 2011
a. ghorbani m. r. vedadi

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