Yet, little empirical research has been conducted with male adolescents who engage in sexual activity with older men. In this article, we summarize in a number of ways the range of sexual activity reported by an ethnically diverse sample of 200 gay and bisexual male youth (15–22years old) ...
Subject demographics for adolescents with online gaming addiction (age range: 17–22 years) and control groups (age ranges: 17–21 years).Kai YuanPing ChengTao DongYanzhi BiLihong XingDahua YuLimei ZhaoMinghao DongKaren M. von DeneenYijun Li...
Despite the small age range, the differences were large and visible for all five physical fitness tests; the overall linear trend for age was significant (z = 31.60). The LMM tested the interactions of age with the four test contrasts, that is whether slopes in neighbouring panels (avera...
Increased pediatric participation in the health and medical care of adolescents has been encouraged over the last several years, both through the redefinition of the age range of pediatric practice by the American Academy of Pediatrics, and by the 1978 Task Force Report on Pediatric Education. Where...
Assays were optimized over a dilution curve, to ensure selection of a dilution within the linear range of the assays. A 1:200 dilution was selected to maximize the dynamic range across control samples and to capture the AUC for the full range of dilutions tested. Diluted serum samples were ...
odoriphaga was able to develop, survive and reproduce successfully across the entire temperature range from 15℃ to 30℃; however, under the condition of 25℃, with higher survival rate and fecundity and shorter generation, it was the most suitable temperature for the population growth of B. ...
A study using data for mothers from the National Longitudinal Survey of Youth and their children aged 14 or older indicates that, after accounting for a wide range of demographic and socioeconomic antecedents, children are significantly more likely to become sexually active before age 14 if their ...
14% of girls in the research sampling frame were found not to be eligible as they had relocated, married, or were outside of the age range. The analysis plan in the protocol described estimates by arms (Appendix 3), however after initial estimates showed little difference by arm, the autho...
Some studies, such as those that do not offer the prospect of direct benefit and pose risks at the top of the range appropriate for adolescents, raise greater ethical concern. The general presumption that adolescents are able to understand and make their own decisions may not provide sufficient ...
exposure in a way that is not possible using human subjects because exposure is inherently confounded with age. For example, animal models allow for detailed neurobiological investigation of the effects of alcohol exposure in a specific age range on neural activation, protein expression, gene ...