نتایج جستجو برای: 2201
تعداد نتایج: 336 فیلتر نتایج به سال:
Cotton aphid, Aphis gossypii Glover (Hem.: Aphididae) is one of the most important pests in greenhouses and farms that decreases the quantity and quality of the product. Besides several plant viruses transmit by this pest such as cucumber mosaic virus and watermelon mosaic virus. The aim of this study was to evaluate the effect of cotton aphid feeding on some physiological parameters that are i...
We establish the geometric ergodicity of preconditioned Hamiltonian Monte Carlo (HMC) algorithm defined on an infinite-dimensional Hilbert space, as developed in Beskos et al. (Stoch Process Appl 121(10):2201–2230, 2011). This can be used a basis to sample from certain classes target measures which are absolutely continuous with respect Gaussian measure. Our work addresses open question posed (...
talıklarına bağlı ölümlerden sonra ikinci sırada yer almaktadır. Kanser, morbidite ve mortaliteye neden olması nedeniyle ciddi bir sorun olarak karşımıza çıkmaktadır. Dünyada ülkemizde kanser epidemiyolojisini araştıran birçok çalışma olmasına rağmen halen bazı bölgelerde yeterli veri yoktur. Bu araştırma, Afyonkarahisar bölgesindeki onkoloji polikliniğine başvuran hastalarının demografik değiş...
Purpose: This study exposes the rate of consanguineous marriages in afghan population and its effects on health their children.
 Methodology: A questionnaire was designed to collect data. total 2300 respondents were asked about socio-demographic attitude towards which 2201 responded according criteria. The paper describes quantitative qualitative types surveys, include field observations d...
هدف: این پژوهش، با هدف بررسی هزینه– سودمندی منابع اطلاعاتی الکترونیکی کتابخانه مرکزی دانشگاه بوعلی سینا همدان در سال 2011 به انجام رسیده است. روش پژوهش: این پژوهش از نوع کاربردی است و از روش پیمایشی بهره گرفته است. برای گردآوری اطلاعات از دو شیوه بسامد استفاده و تحلیل هزینه–سودمندی که دو شیوه علمی در ارزیابی منابع می باشند استفاده شده است. جامعه آماری پژوهش، منابع اطلاعاتی الکترونیکی اشتراکی ک...
background : the objective of this study was to describe cigarette smoking prevalence among adults in lebanon and to evaluate the profile of light cigarette smokers compared to never and heavy smokers. methods : data were taken from a cross-sectional study carried out from october 2009 to september 2010, using a multistage cluster sampling all over lebanon. lebanese residents aged 40 years and ...
-Detailed neutron diffraction structure analysis of Bi2SrzCaCu20s is reported. The effects of Pb-substitution on BizSrzCaCuzOs and Bi2Sr2CuOs are discussed, and magnetization measurement results on the 110 K phase in the Bi-Sr-Ca-Cu-0 system are given. Since the discovery of high Tc superconductivity in the Bi-Sr-Ca-Cu-0 system [I], two superconducting phases have been unambiguously identified,...
We report that four properties of cuprates and their evolution with doping are consequences of simply counting four-site plaquettes arising from doping, (1) the universal Tc phase diagram (superconductivity between∼0.05 and ∼0.27 doping per CuO2 plane and optimal Tc at ∼0.16), (2) the universal doping dependence of the room-temperature thermopower, (3) the superconducting neutron spin resonance...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید