نتایج جستجو برای: d and e
تعداد نتایج: 17404404 فیلتر نتایج به سال:
In this paper, we introduce a new class of set-valued mappings which is called MD-type mappings. This class of mappings is a set-valued case of a class of the D-type mappings. The class of D-type mappings is a generalization of nonexpansive mappings that recently introduced by Kaewkhao and Sokhuma. The class of MD-type mappings includes upper semi-continuous Suzuki type mappings, upper semi-con...
Using 0.8 x 10(6) D+ D- pairs collected with the CLEO-c detector at the psi(3770) resonance, we have searched for flavor-changing neutral current and lepton-number-violating decays of D+ mesons to final states with dielectrons. We find no indication of either, obtaining 90% confidence level upper limits of B(D+ --> pi+ e+ e-) < 7.4 x 10(-6), B(D+ --> pi- e+ d+) < 3.6 x 10(-6), B(D+ --> K+ e+ e-...
abstract the present study was conducted to examine the effect of proficiency on students interaction while carrying out the grammar-based task(s) in collaboration. in particular, the study examines whether the level of proficiency affects the learners’ focus of attention to grammatical and lexical features. the study takes a further step and examines whether there is any difference in the use...
فرض کنید g = ( v ; e ) گرافی فاقد راس منفرد است. مجموعه ی d ? v (g) را مجموعه احاطه گر تام گوییم هرگاه d یک مجموعه احاطه گر بوده و زیر گراف القایی g[d] شامل هیچ راس منفردی نباشد. می نیمم کاردینال یک مجموعه احاطه گر تام را عدد احاطه ای تام می نامند. مجموعه d ? v (g) را یک مجموعه احاطه گر همبند بیرونی تام گویند هرگاه d یک مجموعه احاطه گر تام g بوده و زیر گراف القایی توسط g[v ? d] همبند باشد. عدد ...
Background: This study investigated the association between vitamins intakes and risk of gastric cancer (GC) among Iranian population. Methods: In this hospital-based case-control study, 178 pathologically confirmed GC patients and 276 healthy controls were interviewed to answer a valid diet history questionnaire. Unconditional logistic regression, in which potential confounders were taken i...
Abstract Background and Objective: CTX-M type extended spectrum beta-lactamases is a rapidly expanding group of enzymes encountered with increasing frequency, especially, in Escherichia coli (E. coli). There are a few reports on phylogenetic background of E. coli isolates from clinical sources of under five-year- old children in Iran. The purpose of this study was phylotyping of E. coli isola...
This study evaluated the influence of dietary garlic (Allium sativum) extract on survival rate and changes in blood and immune parameters of Common carp (Cyprinus carpio), fed with two different concentrations of aqueous garlic extract after exposure to spring viremia of carp virus (SVCV). The experiments have executed in two steps: Firstly, 270 fingerlings of Common carp with an average weight...
Viral hepatitis is one of five infectional factors cause early death in all over the world. Every day at least one million people die because of viral hepatitis. Six hepatitis viruses have been known until now. They are A, B, C, D, E, G, and it is probable that at least two other kinds i.e. F, and H, will be known soon. Only hepatitis B is a DNA virus, and the others are RNA viruses. All viruse...
introduction: borago officinalis flower (borage) is a known sedative in herbal medicine the aim of the present study was to evaluate the antinociceptive effect of borage hydroalcoholic extract in formalin test male rats. methods: fifty-six adult male albino wistar rats were randomly divided into seven groups: control groups of a (intact), b (saline), and c (positive control) plus test groups of...
We evaluated ameliorative effects of Jamun seed and orange peel extracts on liver toxicity in cypermethrin exposed rat. Methods: Rats were given following treatments daily for 30 d: Group A: Control Group B: Rats received cypermethrin Group C: These rats received cypermethrin and Jamun seed extract simultaneously Group D: These rats received cypermethrin and orange peel extract simultaneou...
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