Malaria parasites have a complex life cycle with asexual multiplication in a vertebrate host and obligate sexual reproduction in the mosquito; however, commitment to sexual development begins in the vertebrate with differentiation of female and male gametocytes. In this issue of Cell, Khan et al. (2005) used elegant approaches to purify male and female gametocytes and elucidated their respectiv...

Society prescribes a set model of heterosexual development toward a gender and sexual identity. Individuals with gender and sexual identities that do not conform to the prescribed heterosexual identities must essentially develop their own way, that is, they must privately negotiate their path through identity development and identity adoption. However, while negotiating their private reality, t...

background & aim: one of the most important events in human life is marriage. sexual satisfaction is one of the effective factors in a successful marriage. accordingly, sexual health education is necessary. sex education should be in line with the cultural, religious, and social infrastructures of the society. the aim of this study was to compare the effect of sex education with and without rel...

introduction: genetic and health factors along with ethnicity and geographic location are factors that affect the time of puberty onset. the aim of the present study was to evaluate the mean age of onset of puberty and its stages in boys of yazd. methods: this cross- sectional study with random clustering sampling method was conducted on 1018 healthy 9-16 years old male students of yazd. all ca...

background: sexuality is an important part of women’s health, quality of life, and general well-being. there are many factors influencing the female sexual function, including psychological, physiological, couple relationship, and socio-cultural factors. pregnancy plays an important role in the sexual function and behavior of women. objective: this study aims to evaluate the sexual function and...