Abstract Sperm centrioles play a critical role in sperm differentiation and embryo development, they are implicated infertility miscarriages. However, the precise way function inherited during fertilization mammals remains unresolved. A key reason for this lack of understanding is that many proteins only transiently present centriole because process known as Centrosome Reduction exhibit dramati...

background: since the mortality rate of mothers and infants is due to preventable factors, this study aimed to determine the effects of interventions on decreasing the mortality rate of pregnant women in isfahan province, iran. methods: this was an interventional study. the study population included all dead mothers in isfahan province from 21 march 2002 to 20 march 2005 and after intervention ...

background: there is no doubt that education has an important role in developing and promoting student's creative ability. creativity is an equivalent for divergent production based on guilford's theory. he was the first one to propose the concept of creativity in psychology. he believed divergent production is the main characteristic of creativity. divergent production is one of the basic conc...

melasma is a common acquired skin disorder. while different treatments are currently being used, in many cases it is refractory to treatment. according to the effects of topical steroids in decreasing skin pigmentation, we studied the efficacy of this new method for treatment of melasma. a total of 42 women with facial melasma, admitted to the department of dermatology of hamadan, were enrolled...