نتایج جستجو برای: 1 ef
تعداد نتایج: 2761255 فیلتر نتایج به سال:
Let G = (V, E) be a simple graph. A vertex labeling f : V → {0, 1} induces a partial edge labeling f ∗ : E → {0, 1} defined by f ∗(uv) = f(u) 84 KWONG, LEE, LO, SU AND WANG if and only if f(u) = f(v). For i = 0, 1, let vf(i) = |{v ∈ V : f(v) = i}|, and ef (i) = |{e ∈ E : f ∗(e) = i}|. A graph G is uniformly balanced if |ef (0)−ef (1)| ≤ 1 for any vertex labeling f that satisfies |vf(0)−vf (1)| ...
A mutational analysis of the eukaryotic elongation factor EF-1 alpha indicates that this protein functions to limit the frequency of errors during genetic code translation. We found that both amino acid misincorporation and reading frame errors are controlled by EF-1 alpha. In order to examine the function of this protein, the TEF2 gene, which encodes EF-1 alpha in Saccharomyces cerevisiae, was...
Aurodox is a member of the family of kirromycin antibiotics, which inhibit protein biosynthesis by binding to elongation factor Tu (EF-Tu). We have determined the crystal structure of the 1:1:1 complex of Thermus thermophilus EF-Tu with GDP and aurodox to 2.0-A resolution. During its catalytic cycle, EF-Tu adopts two strikingly different conformations depending on the nucleotide bound: the GDP ...
In this paper, we study the effect on TCP of assigning higher-priority to traffic requesting Expedited Forwarding (EF) service in a Differentiated Services network. We analyze networks in which (1) EF traffic occupies different fractions of link bandwidth and is bursty at different time-scales; and (2) multiple TCP flows with heterogeneous round trip times share the network with the EF traffic....
In Nigeria, rural inhabitants often resort to herbal remedies and dietary control for the treatment management of various forms diabetes mellitus. This study was conducted provide rationale use Psidium guajava leaves as a potent traditional anti-diabetic remedy. The crude leaf extracts n-hexane, methanol, ethyl acetate were separately prepared by cold maceration. Then, extract fractionated colu...
We introduce a method to obtain the envelopes of eccentric orbits in axially symmetric potentials, $\Phi(R,z)$, endowed with $z$-symmetry reflection. By making transformation $z\rightarrow a+\sqrt{a^{2}+ z^{2}}$, $a>0$, we compute resulting mass density, referred here as \emph{effective density} $\rho_{\rm ef}(R,z;a)$, order calculate $Z(R)$ meridional plane $(R,z)$. find that they obey approxi...
The mineralization of tetracycline by electrochemical advanced oxidation processes (EAOPs) as well the study toxicity its intermediates and degradation products are presented. Electro-Fenton (EF), anodic (AO), electro-Fenton coupled with (EF/AO) were used to degrade on carbon felt (cathode) a sub-stoichiometric titanium oxide (Ti4O7) layer deposited Ti (anode). As compared EF AO, EF/AO system r...
Aurodox is a member of the family of kirromycin antibiotics, which inhibit protein biosynthesis by binding to elongation factor Tu (EF-Tu). We have determined the crystal structure of the 1:1:1 complex of Thermus thermophilus EF-Tu with GDP and aurodox to 2.0-Å resolution. During its catalytic cycle, EF-Tu adopts two strikingly different conformations depending on the nucleotide bound: the GDP ...
In the racemic title compound, C(34)H(22)Br(2)N(2)S·CDCl(3), pairs of diquinoline host mol-ecules form centrosymmetric brick-like dimers utilizing three different aryl edge-to-face inter-actions (EF(1-3)). The dimeric (EF)(6) (i.e. 2 × EF(1-3)) building blocks pack with the deuterochloro-form guest mol-ecules positioned near each of their corners. The Cl atoms of the latter are disordered over ...
OBJECTIVES We aimed to determine the safety and efficacy of pulmonary vein isolation (PVI) in atrial fibrillation (AF) patients with impaired left ventricular (LV) systolic function. BACKGROUND To date, PVI has been performed primarily in patients with normal LV function. Yet, many AF patients have impaired LV systolic function. The outcomes of PVI in patients with impaired LV systolic functi...
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