The authors used the Twenty Statements Test in 2 studies to investigate gender and country differences in the spontaneous self-descriptions of 811 college students from Hong Kong, India, Nepal, Nigeria, and Zimbabwe and 136 secondary school students from Taiwan and Hong Kong. The authors performed statistical analysis and found no significant gender differences in the percentage of responses cl...

BACKGROUND Male hypogonadism is defined as 'inadequate gonadal function, manifested by deficiency in gametogenesis and/or secretion of gonadal hormones'. Signs and symptoms of hypogonadism depend primarily on the age of onset. It can be classified according to the site primarily involved: the gonads, the hypothalamus, or the pituitary gland. The objective this study was to determine the present...

BACKGROUND Over 20 million persons are infected with HTLV-I/II globally. The virus is endemic in Africa and it is also transmitted sexually. Continued identification of high risk groups is important for the control of the disease. OBJECTIVES To determine the prevalence of HTLV infection amongst two highly sexually active groups, pregnant women and CSWs in South Western Nigeria. METHODS Seru...

In rodents and swine, individual differences in a broad range of characteristics correlate with intrauterine position during fetal life. By identifying the intrauterine position of mice at cesarean delivery, we can predict reliably postnatal reproductive traits such as genital morphology, timing of puberty, length of estrous cycles, timing of reproductive senescence, sexual attractiveness, sexu...

The degree of sexual dimorphism found in mammals ranges from species in which females are larger than males (Rails 1976a) to those in which males are much larger than females and possess striking secondary sexual characteristics which females lack. Although some work has been done on mammals, principally pinnipeds (Bartholomew 1970; Stirling 1975) and primates (Crook 1972), current theories as ...

The environmental conditions individuals experience during early development are well known to have fundamental effects on a variety of fitness-relevant traits. Although it is evident that the earliest developmental stages have large effects on fitness, other developmental stages, such as the period when secondary sexual characters develop, might also exert a profound effect on fitness componen...

OBJECTIVE To explore sexual behavior in terms of masturbation, homosexual contact and coitus in secondary school students in Bangkok. MATERIAL AND METHOD This was a cross-sectional survey research from December, 2002 to January, 2003. 362 students were selected by the multistages simple random sampling technique. A self administered questionnaire was used to collect data on baseline character...

background: menopause and its physical, hormonal and psychosocial changes could affect women’s sexual function. there are controversial results regarding relationship between sexual attitudes and function. objective: we aimed to evaluate sexual attitudes and sexual function among iranian menopausal age women. materials and methods: this population based cross-sectional study was carried out on ...

Despite the importance of plant-herbivore interactions to the ecology and evolution of terrestrial ecosystems, the evolutionary factors contributing to variation in plant defenses against herbivores remain unresolved. We used a comparative phylogenetic approach to examine a previously untested hypothesis (Recombination-Mating System Hypothesis) that posits that reduced sexual reproduction limit...