the conventional theory of adverse selection is not supported by most of the empirical works. these studies conclude that low-risk individuals demand more insurance services than high-risks. they refer to this situation as advantageous selection theory. this theory states that loss ratio of insureds may be lower than the population loss ratio while the conventional theory of adverse selection c...

This article discusses some of the findings of a study on street prostitutes in Tehran with a focus on HIV/AIDS risk behaviors. It aims to show the extent of their knowledge and attitude about HIV/AIDS and available services and their behavior.   This is an “extensive” and “cross-sectional” study, in which the target group was questioned about their background and socioeconomic status in additi...

Background:  Pregnancy in a woman's life is a unique experience. But due to high risk pregnancy and the need to rest in bed, the women and her family are faced with different challenges and needs. The inability to manage these needs will result in crisis and understanding the needs of pregnant women during bed rest is essential to provide comprehensive health care for them. So this qualitative ...

Introduction: High risk is a pregnancy case which endangers the life of both mothers as well as fetus and The incidence between 10-30%being. Considering the importance of neonates health, it is decided in this research that , some of health indexes of born neonates from mothers whit high risk pregnancy to be studied. The findings of this plan can be used in programming procedure of pregnancy pe...