background: undescended testis (udt) is the most common endocrine disorder in male children. delayed diagnosis and treatment of udt lead to complications such as infertility, malignancy and testis rotation. objective: the aim of this study was to evaluate the causes of delay in proper treatment of patients with undescended testis in our population. materials and methods: an observational, descr...

KEY FINDINGS Most teenagers received formal sex education before they were 18 (96% of female and 97% of male teenagers). Female teenagers were more likely than male teenagers to report first receiving instruction on birth control methods in high school (47% compared with 38%). Younger female teenagers were more likely than younger male teenagers to have talked to their parents about sex and bir...

Microsatellite markers containing simple sequence repeats (SSRs) are a valuable tool for genetic analysis. Date palm is a dioecious and slow flowering and is very difficult to identify the gender of the trees until it reaches the reproductive age (5-10 years). A total of 12 microsatellite primers were used with 30 date palm samples, 14 parents (8 male + 6 females) and 16 progeny (developed from...

BACKGROUND Selecting appropriate controls for studies of genetic variation in case series is important. The two major candidates involve the use of blood donors or a random sample of the population. METHODS We compare and contrast the two different populations of controls for studies of genetic variation using data from parents enrolled in the Avon Longitudinal Study of Parents and Children (...

The quality of offspring produced by parent fleas (Xenopsylla ramesis) fed on either male or female rodent hosts (Meriones crassus) was studied. The emergence success, duration of development, resistance to starvation upon emergence and body size of the flea offspring were measured. It was predicted that offspring of fleas produced by parents that fed on male hosts (i) will survive better as pr...

BACKGROUND AND OBJECTIVES Three randomized trials demonstrated male circumcision decreases female-to-male HIV incidence by 60%. Male circumcision research in sub-Saharan Africa has focused on adolescents and adults. Modeling suggests infant male circumcision (IMC) will be cost saving for HIV prevention in high to moderate seroprevalent regions. This study examined parental decision-making and d...