نتایج جستجو برای: single factor evaluation
تعداد نتایج: 2401079 فیلتر نتایج به سال:
Genomic selection has revolutionized dairy cattle breeding. Since 2000, assays have been developed to genotype large numbers of single-nucleotide polymorphisms (SNPs) at relatively low cost. The first commercial SNP genotyping chip was released with a set of 54,001 SNPs in December 2007. Over 15,000 genotypes were used to determine which SNPs should be used in genomic evaluation of US dairy cat...
BACKGROUND Candidate gene case-control studies have identified several single nucleotide polymorphisms (SNPs) that are associated with asthma susceptibility. Most of these studies have been restricted to evaluations of specific SNPs within a single gene and within populations from European ancestry. Recently, there is increasing interest in understanding racial differences in genetic risk assoc...
Structural studies of the Bacillus stearothermophilus PcrA protein along with biochemical studies of the single-stranded (ss) DNA translocation activity of PcrA monomers have led to the suggestion that a PcrA monomer possesses processive helicase activity in vitro. Yet definitive studies testing whether the PcrA monomer possesses processive helicase activity have not been performed. Here we sho...
In order to effectively reduce the probability of subway operation accidents and explore key risk factors multi-factor coupling mechanism during period, this paper classifies affecting safety into four categories primary factors, personnel, equipment facilities, environment management, introduces emergency management concept identify 18 secondary combines improved fuzzy decision making test eva...
کلستریدیوم پرفرینجنس که یکی از باکتری های بیماری زا با گسترش بسیار در محیط می باشد، باسیلی بی¬هوازی، گرم مثبت و اسپوردار است. کلستریدیوم پرفرینجنس را بر اساس چهار توکسین عمده و کشنده حاصل از آن (آلفا، بتا، اپسیلون و یوتا) به پنج تیپ از a تا e تقسیم می کنند. بجز سموم اصلی فوق الذکر، حداقل سیزده توکسین کم اهمیت تر دیگر که در پاتوژنز بیماری نقش دارند، نیز شناخته شده اند که شامل توکسین های دلتا، تت...
objective(s): echis carinatus is one of the venomous snakes in iran. the venom of iranian echis carinatus is a rich source of protein with various factors affecting the plasma protein and blood coagulation factor. some of these proteins exhibit types of enzymatic activities. however, other items are proteins with no enzymatic activity. materials and methods: in order to study the mechanism an...
New recommendations and future standards have increased the interest in power factor correction circuits. There are multiple solutions in which line current is sinusoidal. In addition, in the recent years, a great number of circuits have been proposed with nonsinusoidal line current. In this paper, a review of the most interesting solutions for single phase and low power applications is carried...
regarding the ecommerce growth, websites play an essential role in business success. therefore, many authors have offered website evaluation models since 1995. although, the multiplicity and diversity of evaluation models make it difficult to integrate them into a single comprehensive model. in this paper a quantitative method has been used to integrate previous models into a comprehensive mode...
this study tries to investigate relationship between rainfall parameters and usle r factor. to gain r-factor, at first, shower kinetic energy was calculated and then its erosivity computed by using maximum 30 minutes rainfall intensity. therefore 3 meteorological stations in khuzestan province and one station per kohgiloyeh & boyerahmad and boushehr provinces were selected and their recorde...
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