Despite the diverse array of mating systems and life histories which characterise the parasitic Hymenoptera, sexual selection and sexual conflict in this taxon have been somewhat overlooked. For instance, parasitoid mating systems have typically been studied in terms of how mating structure affects sex allocation. In the past decade, however, some studies have sought to address sexual selection...

Secondary sexual traits that develop under the action of testosterone, such as masculine human male facial characteristics, have been proposed to signal the strength of the immune system due to the sex hormone's immunosuppressive action. Recent work has suggested that glucocorticoid stress hormones may also influence expression of such sexual signals due to their effects on immune function. Pre...

Data from a survey of 715 men aged 20-44 from Mangochi district of Malawi were used to assess the sociodemographic and economic determinants of (1) having ever paid for sex, (2) total number of sex partners in the past year, and (3) having ever used condoms. Different individual characteristics were associated with each of these sexual behaviors. Polygamy and being a fisherman who has left home...

Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome is a congenital anomaly of female genital tract where there hypoplasia uterus and upper two- thirds vagina. Patients with MRHK present normal development secondary sexual characteristics due to ovarian function. We report 2 cases who presented absent ovaries confirmed on imaging. Both our MRKH had short stature underdeveloped characteristics. It ex...

We treated ten men and ten women suffering from hypogonadotropic hypogonadism with LHRH. Our method of treatment differed 'from others in that a mini pump was not available at the onset of the study. Nine women were given injections via a heparinized indwelling catheter every 120 minutes for 14 days, i,e. the proliferative phase. After ovulation, 3000 IU human chorionic gonadotropin (HCG) ...

Early and regular blood transfusion therapy in patients with homozygous beta-thalassemia decreases the complications of severe anemia and prolongs survival. In the long term, however, the beneficial effects of transfusions are limited by the organ damage resulting from iron overload. Endocrine complications in patients with thalassemia major in developing countries may be frequent due t o ...

The timing of sexual maturation in non-avian dinosaurs is not known. In extant squamates and crocodilians it occurs in conjunction with the initial slowing of growth rates as adult size is approached. In birds (living dinosaurs) on the other hand, reproductive activity begins well after somatic maturity. Here we used growth line counts and spacing in all of the known brooding non-avian dinosaur...

Failure of development of the primitive lung bud leads to an extremely rare congenital anomaly with a prevalence of 34 per 10 lac live births termed pulmonary aplasia. In half of such cases, associated congenital malformations of the cardiovascular, skeletal, gastrointestinal, or genitourinary systems are present. The Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome is defined as the congenital a...

The present research uniquely compared male control theory (MCT) versus female control theory (FCT) to illuminate motives for the sexual double standard (SDS), whereby men gain status from engaging in casual sex or having many sexual partners, but women are stigmatized for it. Consistent with MCT, men were more likely than women to endorse the SDS and to give sexual advice in ways that reinforc...

Precocious puberty is a rare condition characterized by the development of secondary sexual characteristics before the median age for the sex. It is either gonadotropin dependent also called as central or gonadotropin independent also known as peripheral type. Hypothalamamic Hamartoma is a common cause of the central or precocious puberty due to organic brain lesion. Here we present a two year ...