نتایج جستجو برای: نسبت sn
تعداد نتایج: 183104 فیلتر نتایج به سال:
We report on our early photometric and spectroscopic observations of the extremely luminous Type II supernova (SN) 2008es. With an observed peak optical magnitude of mV = 17.8 and at a redshift z = 0.213, SN 2008es had a peak absolute magnitude of MV = −22.3, making it the second most luminous SN ever observed. The photometric evolution of SN 2008es exhibits a fast decline rate (∼0.042 mag d), ...
In this paper, we prove that the full automorphism group of the derangement graph Γn (n ≥ 3) is equal to (R(Sn) ⋊ Inn(Sn)) ⋊ Z2, where R(Sn) and Inn(Sn) are the right regular representation and the inner automorphism group of Sn respectively, and Z2 = 〈φ〉 with the mapping φ : σ φ = σ−1, ∀σ ∈ Sn. Moreover, all orbits on the edge set of Γn (n ≥ 3) are determined.
Euphorbia macrostegia or Persian wood spurge is one of the seventeen endemic plants of this genus in Iran. Three triterpenoids: 24-methylenecycloartan-3β-ol (1), butyrospermol (2) and cycloartenol (3) and three diglycerides: 1,2-di-O-α-linolenoyl-sn-glycerol (4), 1-O-linoleoyl-3-O-palmitoyl-sn-glycerol (5) and 1-O-α-linolenoyl-2-O-palmitoyl-sn-glycerol (6) were isolated from a hexane layer of m...
Irinotecan is one of the effective anticancer agents for small-cell lung cancer (SCLC) and 7-ethyl-10-hydroxy-campthothecin (SN-38) is an active metabolite of irinotecan. Gefitinib and imatinib are tyrosine kinase inhibitors which have clinical activities in several malignancies and they are also potent inhibitors of breast cancer resistance protein (BCRP) transporter, which confers the resista...
The Tribonacci-Lucas sequence {Sn}{Sn} is defined by the recurrence relation Sn+3=Sn+2+Sn+1+SnSn+3=Sn+2+Sn+1+Sn with S0=3, S1=1, S2=3.S0=3, S2=3. In this note, we show that 11 only perfect square in for n≢1(mod32)n≢1(mod32) and n≢17(mod96).n≢17(mod96).
Sialoadhesin (Sn, Siglec-1, CD169) is a member of the sialic acid binding Ig-like lectin (siglec) family expressed on macrophages. Its macrophage specific expression makes it an attractive target for delivering antigens to tissue macrophages via Sn-mediated endocytosis. Here we describe a novel approach for delivering antigens to macrophages using liposomal nanoparticles displaying high affinit...
sn-networks were first introduced by Lin [12], which are the concept between weak bases and cs-networks. sn-metrizable spaces [6] (i.e., spaces with σ-locally finite sn-networks) are one class of generalized metric spaces, and they play an important role in metrization theory, see [6, 13]. In this paper, we give a mapping theorem on sn-metrizable spaces, discuss relationships among spaces with ...
Let Fq[t] denote the polynomial ring over the finite field Fq, and let SN denote the subset of Fq[t] containing all polynomials of degree strictly less than N . For non-zero elements r1, ⋅ ⋅ ⋅ , rs of Fq satisfying r1 + ⋅ ⋅ ⋅ + rs = 0, let Dr(SN ) denote the maximal cardinality of a set A ⊆ SN which contains no non-trivial solution of r1x1 + ⋅ ⋅ ⋅+ rsxs = 0 with xi ∈ A (1 ≤ i ≤ s). We prove tha...
The title compound, [Sn(4)(C(8)H(17))(8)O(2)(C(6)H(5)N(2)O(2))(4)], is a tetra-nuclear Sn(IV) complex, built up by inversion symmetry around the central Sn(2)O(2) ring. The Sn(IV) coordination geometries are distorted SnO(3)C(2) trigonal-bipyramidal and distorted SnO(4)C(2) octa-hedral. The three-coordinate μ(3)-oxido bridging O atom in the Sn(2)O(2) ring is attached to three Sn atoms. All non-...
مطالعه قضایای حدی و قانون اعداد بزرگ در نظریه احتمال به جهت ارتباط جنبه های عملی و تئوری نظریه کلاسیک اهمیت زیادی دارد. فرض کنیم {xn, n?1} دنباله ای از متغیرهای تصادفی با مقادیر حقیقی روی فضای احتمال (?, f, p) و sn???xi آنگاه بر حسب اینکه sn - an/bn در احتمال یا تقریبا همه جا به صفر همگرا باشد قانون ضعیف اعداد بزرگ و قانون قوی اعداد بزرگ را خواهیم داشت {an, n?1} دنباله ای از اعداد حقیقی و {bn, ...
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