BACKGROUND We sought to examine the relationship between students' threats of interpersonal violence and self-reported violent behaviors. METHODS Anonymous self-report questionnaires were administered to students in grades 3 through 12 in schools located in Colorado, Arizona, and Ohio. A survey of 9487 students from 33 public schools was performed. Ages ranged from 7 to 19 years. Across the 3...

The brain continues to develop during adolescence, and exposure to exogenous substances such as nicotine can exert long-lasting adaptations during this vulnerable period. In order to fully understand how nicotine affects the adolescent brain it is important to understand normal adolescent brain development. This review summarizes human and animal data on brain development, with emphasis on the ...

War and Stature: Growing Up During the Nigerian Civil War The Nigerian civil war of 1967-70 was precipitated by secession of the Igbo-dominated southeastern region to create the state of Biafra. It was the first civil war in Africa, the predecessor of many. We investigate the legacies of this war four decades later. Using variation across ethnicity and cohort, we identify significant long run i...

the prevalence and factors influencing the prevalence and severity of dysmenorrhea were studied in 768 female university students aged from 17.s to 44.2 years enrolled at the kerman university of medical sciences and two teachers' training colleges. the overall prevalence of dysmenorrhea in this population was 72% 10.2% reported severe dysmenorrhea. the overall prevalence as well as the pr...

objectives: the current study aimed at investigating the relationship between identity status and career maturity among adolescents with visual disorders, as compared to normal adolescents. methods: the study had two populations: all normal high school students in tehran city (including boys and girls) and all visually-disabled high school students in tehran (including boys and girls). the samp...

Inhibition and Working Memory (WM) are two core dimensions of executive functions (EF). These processes seem develop until late adolescence (Huizinga, Dolan & Van der Molen, 2006; Crone, Bunge, Van der Molen & Ridderinkhof, 2006) but it is still quite unclear how these abilities do organize in this great time of changes for the human brain. The aim of the study is to investigate how inhibition ...

Wilson K, Mills E, Ross C, et al. Association of autistic spectrum disorder and the measles, mumps, and rubella vaccine: a systematic review of current epidemiological evidence. Arch Pediatr Adolesc Med 2003;157:628–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Adolescence is a unique period in the life history of an individual. It characterized by myriad changes that bioarchaeologists are only just coming to appreciate, related sexual maturation, linear growth, immunological transformation, and emotional cognitive development. New methods allow us measure this age transition through stages adolescent as proxy for physical development associated with ...