arthropod development is affected by temperature. knowledge of relationship between temperature and mite developmental rates is useful in biological and ecological studies. effect of six constant temperatures (15, 20, 25, 30, 35, 40 ) on developmental rate of all stages of two-spotted spider mite, tetranychus turkestani ugarov & nicolski, were investigated under laboratory conditions at 55 10% ...

background: melatonin, a reactive oxygen species (ros) scavenger and an antioxidant, has been shown that can inhibit apoptosis. administration of melatonin may improve embryo development in assisted reproductive technology (art). objective: the aim of this study was to evaluate the role of melatonin in inhibition of spontaneous and induced apoptosis by tumor necrosis factor alph (tnf-α) and act...

the beet armyworm, spodoptera exigua, is one of the most important pests of sugar beet in iran. the aim of this study was to determine the effect of water and nitrogen treatments of sugar beet planton developmental time and fecundity life table parameters of the pest. an experiment was carried out under laboratory conditions (25±2oc, 70±5% r.h. and 12l: 12d) on larvae reared on sugar beet leave...

how to cite this article: yaghini o, kelishadi r, keikha m, niknam n, sadeghi s, najafpour e, ghazavi mr. prevalence of developmental delay in apparently normal preschool children in isfahan, central iran. iran j child neurol. summer 2015;9(3):17-23. abstract objective developmental delay screening is essential in pediatric medicine. the purpose of this study was to estimate the developmental d...

ENETIC analysis of a variety of traits in populations of several species has revealed a similar pattern for many traits which are important components of fitness. In general such characters have intermediate optima, and prolonged artificial selection for extreme expression leads to a reduction in fitness. LERNER (1954, 1958) has postulated that one possible mechanism for natural selection in fa...

background: polycystic ovarian syndrome (pcos) is one of the most common endocrine disorders which cause anovulatory infertility and hyperandrogenism in young women. the common feature in pcos women is increased ovarian androgen secretion which can effect on the prevalence of miscarriage rate. objective: the aim of this study was to investigate the effect of pcos patient's serum on in vitro dev...