objective: to compare sexual and behavioral puberty problems between intellectually disabled (id) and normal boys in yazd, iran. methods: in the present study, 65 intellectually disabled and 65 normal boys were included. the child behavior check list (cbcl) was used to investigate behavioral problems. in order to study sexual problems, a questionnaire that was designed by the researchers was ap...

background: trichomoniasis is a worldwide sexually transmitted disease (std), and is associated with important public health problems, including enhancement of hiv transmission. the prevalence of the parasite, trichomonas vaginalis, depends on host factors such as age, sexual activity, number of sexual partners and sexual behavior. the aim of the study was to evaluate the prevalence of trichomo...

Wild-type D. melanogaster males innately possess the ability to perform a multistep courtship ritual to conspecific females. The potential for this behavior is specified by the male-specific products of the fruitless (fru(M)) gene; males without fru(M) do not court females when held in isolation. We show that such fru(M) null males acquire the potential for courtship when grouped with other fli...

Background: The interaction of ethanol consumption and sexual behavior has been evaluated over the past three decades; however, some studies have assessed how ethanol consumption affects the general behavioral aspects of the copulatory cycle patterns in male rats. The aim of this study was to investigate the effect of chronic ethanol consumption on adult male Wistar rats' sexual motivation and ...

Circadian patterns of activity are considered ubiquitous and adaptive, and are often invoked as a mechanism for temporal niche partitioning. Yet, comparisons of rhythmic behavior in related animal species are uncommon. This is particularly true of Lepidoptera (butterflies and moths), in which studies of whole-animal patterns of behavior are far outweighed by examinations of tissue-specific mole...