Using data from a 1980 national sample of married men and women, the authors’ empirical analysis examines the utility of the family life cycle concept, employing as dependent variables constructs from Johnson’s conceptualization of commitment. They argue, in disagreement with two classic critiques of the family life cycle concept, that the predictive power of family life cycle is, for many depe...

background: the main object of this experimental work was to practise laboratory production both adult and the larval stage of hymenolepis diminuta with conventional modification to make further studies easier. materials & method: adults h. diminuta were collected from urban rats in tehran, iran. the beetles became infected using blended gravid segments with flour as bait. cysticercoids have be...

there are many claims that quantum mechanics plays a key role in the origin and/or operation of biological organisms. the mechanism of the meiosis, mitosis and gametes life cycle from the view-point of quantum for human has been represented. the quantum gates have been used to simulate these processes for the first time. the reason of several hundred sperms has been explained in the male too