Background: It is generally agreed that HCV can be efficiently transmitted parenterally, although data on HCV transmission by non-parenteral routes such as sexual and nonsexual household contacts are conflicting. HCV is highly prevalent in Egypt. Aim: To investigate HCV transmission between spouses, the burden and the potential risk factors of sexual and nonsexual transmission to prevent intraf...

It is well established that steroid hormones regulate sexual behavior in vertebrates via organizational and activational effects. However, whether the organizational/activational paradigm applies more broadly to the sexual behavior of other animals such as insects is not well established. Here we describe the hormonal regulation of a sexual behavior in the seasonally polyphenic butterfly Bicycl...

the purpose of the present study was to examine differences in lifestyle factors such as physical activity among homosexual (gay or lesbian), bisexual, and heterosexual korean adolescents.the sample consisted of 74,186 adolescents from grades 7-12 (ages 12-18) who participated in the 8(th) annual korea youth risk behavior web-based survey in 2012. of this sample, only 11,829 provided enough inf...