Background: Health information on adolescents, by contrast is not widely available in many developing countries apart from indicators on sexual and reproductive health collects by major international health surveys, particularly in the context of HIV/AIDS. Adolescents are a key target group for HIV and pregnancy prevention efforts, yet very little is known about the youngest adolescent: those u...

Rape is defined as " copulation resisted to the best of the victim's ability unless such resistance would probably result in death or serious injury to the victim or in death or injury to individuals the victim commonly protects (Thornhill and Palmer, 2000, pg. 1). " More specifically, Minnesota state law defines rape as sexual contact achieved: 1. without consent; 2. with use of physical force...

Females of most animal species are usually inseminated by more than one male, which allows sperm from different males to compete for fertilization. To prevent invasion of sperm from other males, Drosophila males elicit a rejection behavior in their mates after copulation. Using paired mutant males that, for the lack of accessory glands, are sterile, we show that this rejection behavior is induc...

Male courtship in fruit flies is regulated by the same major regulatory genes that also determine general sexual differentiation of the animal. Elaborate genetics has given us insight into the roles of these master genes. These findings have suggested two separate and independent pathways for the regulation of sexual behavior and other aspects of sexual differentiation. Only recently have molec...

Since Darwin's conception of sexual selection theory, scientists have struggled to identify the evolutionary forces underlying the pervasive differences between male and female behavior, morphology, and physiology. The Darwin-Bateman paradigm predicts that anisogamy imposes stronger sexual selection on males, which, in turn, drives the evolution of conventional sex roles in terms of female-bias...

background: no study has been conducted yet on the process of adjustment of wives with their husbands’ erectile dysfunction in the transitional stages, and there is lack of understanding of this process in iran. objectives: a qualitative, grounded-theory study was designed to examine the process of adjustment of wives with their husbands’ erectile dysfunction in transitional stages. materials a...

Disorders of sexual desire affect an estimated 30% of women in North America and Europe, with etiologies based on interpersonal, personal, and physiological factors. There are currently no pharmacological agents approved for use in the treatment of female sexual dysfunction. This is due, in part, to a focus on the effects of experimental drugs on reflexive components of sexual behavior, such as...

abstract background: infertility is a reproductive health problem and its prevalence is increasing in developing countries. this problem has some significant effects on the sexual behaviors of infertile women, especially during infertility treatment periods. discovering the existing beliefs in the field of sexual and reproductive health and also determining the misconceptions would define the e...

In many species, chemical compounds emitted by conspecifics exert profound effects on reproductive physiology and sexual behavior. This is particularly true in the mouse, where such cues advance and delay puberty, suppress and facilitate estrous cycles, and cause the early termination of pregnancy. They also facilitate sexual behavior and inform mate selection. The mouse has a rich and complex ...