myostatin or growth and differentiation factor 8 (gdf8), has been known as the factor causing double muscling phenotypes in which a series of mutations make the myostatin protein inactive, hence disabling it to regulate the deposition of muscle fibre. this phenotype happens with high frequency in a breed of sheep known as the texel. quantitative trait loci (qtl) studies show that a portion of t...

test situations evoke anxiety for many when the impact of tests on one’s life is considered, including the educational, emotional and other aspects. the purpose of this study is to examine the mediating role of emotion-focused and avoidant coping strategies on the relationship between trait anxiety and test anxiety. 375 high students (193 males, 182 females) aged 15-18 were selected by random c...

the present  study  was carried out to investigate the polymorphism of intron 3 to exon 3 of prolactin gene containing 24 bpindel at nucleotide position (np)  358 and its association with some reproductive traits in japanese quail. these traits consisted of weight (wsm) and age at sexual maturity (asm), mean egg weight at 2nd, 4th, 6th, and 2-6th weeks (mew), and the number of eggs during the 2...

aim and background: the aim of the present study was to investigatethe psychometric properties of the trait hope scale and its relation with psychological well-being of iranian university students. methods and materials: in this descriptivesurvey, 191 students of hamadan islamic azad university (mean age: 24.17 ± 4.30 years; range: 18-45 years) were selected through stratified randomsampling.th...