搜索结果: 1-3 共查到“性科学 onset”相关记录3条 . 查询时间(0.156 秒)
Effects of a Parent-Child Communications Intervention on Young Adolescents' Risk for Early Onset of Sexual Intercourse
Parent-Child Communications Sexual Intercourse Young Adolescents
2009/9/16
Context: The quality of parent-child communications about sex and sexuality appears to be a strong determinant of adolescents' sexual behavior. Evaluations of interventions aimed at improving such com...
Onset of spermatozoal degeneration in low-fertility Delaware roosters and test for autoimmune basis
spermatozoa chicken subfertility
2009/2/6
The objectives of this study were 1) to determine the onset of a heritable reproductive disorder in the rooster that is characterized by extensive spermatozoal degeneration within the ductus deferen...
Investigation, Treatment, and Monitoring of Late-Onset Hypogonadism in Males:ISA, ISSAM, and EAU Recommendations
Investigation Treatment Monitoring Late-Onset Hypogonadism Males
2008/12/23
Androgen deficiency in the aging male has become a topic of increasing interest and debate throughout the world. The demographics clearly demonstrate the increasing percentage of the population that i...