Recently larger numbers of women of advanced age are referring to fertility centers. Although there may be no age restriction for women who are naturally able to and want to be pregnant, using assisted reproductive techniques for women of advanced age is medically and ethically disputed, and this question is always raised: "Should there be an age limit for accessing assisted reproductive techni...

since the 1960s the age effects on learning both first and second language have been explored by many linguists and applied linguists (e.g lennerberg, 1967; schachter, 1996; long, 1990) and the existence of critical period for language acquisition was found to be a common ground of all these studies. in spite of some common findings, some issues about the impacts of age on acquiring a second or...

Background: The first step in assessment of children with precocious puberty is to determine whether the cases are of benign nature or have more serious causes. It seems that two criteria of "height age" and "bone age" are helpful for this decision. Materials and Methods: To evaluate the usefulness of those criteria, a retrospective study of 74 children (50 girls and 24 boys) with precocious pu...