نتایج جستجو برای: g1
تعداد نتایج: 26024 فیلتر نتایج به سال:
OBJECTIVES Diabetes negatively affects the outcome of patients undergoing percutaneous transluminal coronary angioplasty (PTCA) or coronary surgery. However, data are lacking with respect to the impact of arterial revascularization in the diabetic population. METHODS Between 1999 and 2003, 100 of 491 diabetics underwent coronary artery bypass graft surgery (CABG) with total arterial grafting ...
Let G1 and G2 be simple graphs and let n1 = |V (G1)|, m1 = |E(G1)|, n2 = |V (G2)| and m2 = |E(G2)|. In this paper we derive sharp upper and lower bounds for the number of spanning trees τ in the Cartesian product G1 G2 of G1 and G2. We show that: τ(G1 G2) ≥ 2(n1−1)(n2−1) n1n2 (τ(G1)n1) n2+1 2 (τ(G2)n2) n1+1 2 and τ(G1 G2) ≤ τ(G1)τ(G2) [ 2m1 n1 − 1 + 2m2 n2 − 1 ](n1−1)(n2−1) . We also characteri...
In this paper n denotes a natural number, X denotes a set, and F1, G1 denote families of subsets of X. Let us consider X, F1. We say that F1 is finite-order if and only if: (Def. 1) There exists n such that for every G1 such that G1 ⊆ F1 and n ∈ CardG1 holds ⋂ G1 is empty. Let us consider X. Observe that there exists a family of subsets of X which is finite-order and every family of subsets of ...
objective: to evaluate the effect of honey supplemented to cryoprotectant medium on post-thaw sperm motility, concentration, morphology and agglutination. materials and methods: thirty semen samples were collected from 30 infertile patients. after assessment of semen analysis, semen samples were divided into 3 aliquots (0.7ml for each) and mixed with 1 ml of cryopreservation solution (g1, contr...
where kðtÞ 1⁄4 ðkðt1Þ; kðt2Þ; . . . ; kðtpÞÞ ;g1 and g2 are the Lagrange multipliers. Differentiating (2) with respect to kðtkÞðk 1⁄4 1;2; . . . ; pÞ;g1 and g2, and setting these partial derivatives equal to zero, the following set of equations is obtained: @LðkðtÞ;g1;g2Þ @kðtkÞ 1⁄4 2kðtkÞ 2g1ðp kÞ 2g2 1⁄4 0; ð3Þ @LðkðtÞ;g1;g2Þ @g1 1⁄4 2 Xp k1⁄41 ðp kÞkðtkÞ t ! 1⁄4 0; ð4Þ @LðkðtÞ;g1;g2Þ @g2 1⁄4...
چکیده یک ساختار حلقوی (p;g1;g2; k) 2- ساختار نامیده می شود هرگاه p, k ) ) یک فضای وقوعی باشد. ساختار حلقوی (p;g1;g2; k) متقارن نامید ه می شود هر گاه برای هر دو حلقه ی a و b عضو k، بازتاب خطی ? از p به p با ضابطه ی (p) = [[p]2 ? a]1 ? [[p]1 ? a]2 ? حلقه ی b را به a تصویر کند. در این پایان نامه 2-ساختارهای متقارن بر اساس اندازه ی مجموعه ی (p ? k) برای هر زوج ثابت (p,k) با شرط p??kبه سه رده ی زی...
In this paper G1 will denote a non empty topological space and V , A will denote subsets of the carrier of G1. Let G1 be a non empty topological structure and let V be a subset of the carrier of G1. The functor Component(V ) yields a subset of the carrier of G1 and is defined by the condition (Def. 1). (Def. 1) There exists a family F of subsets of G1 such that for every subset A of the carrier...
We prove Feigin-Frenkel type dualities between subregular W-algebras of A,B and principal W-superalgebras sl(1|n),osp(2|2n). The A case proves a conjecture Feigin Semikhatov. Let (g1,g2)=(sln+1,sl(1|n+1)) or (so2n+1,osp(2|2n)) let r be the lacity g1. k complex number ? defined by r(k+h1?)(?+h2?)=1 with hi? dual Coxeter numbers gi. Our first main result is that Heisenberg cosets Ck(g1) C?(g2) th...
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