BACKGROUND Adolescents in the United States are engaging in sexual activity at early ages and with multiple partners. The mass media have been shown to affect a broad range of adolescent health-related attitudes and behaviors including violence, eating disorders, and tobacco and alcohol use. One largely unexplored factor that may contribute to adolescents' sexual activity is their exposure to m...

background: timely notification is of great importance in health emergencies. so identifying the most important sources of information used by people in emergencies seems necessary. the objective of this study was to assess peoples’ level of awareness concerning the symptoms, routes of transmission, prevention, and treatment of h1n1 at the time of the pandemic and also to identify their most im...

in this article, the writer discusses the concept of modernity and its relationship with social movements, as is reflected in classical works on modernity as well as in the contemporary modern political and sociological thoughts. the purpose is not to present a quantitative analysis of the development of the concept of modernity, but to explain the relationship between modernity and political a...

somatic embryogenesis is a new approache to plant mass in vitro propagation. this method influences by elements and their components in medium. in order to investigate the effects of different media and it,s role on somatic embryogenesis of carrot, a cbd experiment with four replications (including 12 treatments) was conducted. to do this, carrot petioles (with 1 cm dimension) in induction phas...

.......................................................................................................................................................3 Introduction................................................................................................................................................4 Chapter 1: Social Cognitive Theory and Other Frameworks in Understanding Media Effects...

The American Academy of Pediatrics recognizes that exposure to mass media (eg, television, movies, video and computer games, the Internet, music lyrics and videos, newspapers, magazines, books, advertising) presents health risks for children and adolescents but can provide benefits as well. Media education has the potential to reduce the harmful effects of media and accentuate the positive effe...

The study of mass communications is a broad, multidisciplinary field to which sociology has made major contributions. Some of these contributions have been reviewed in earlier works by Riley & Riley (1959), Larsen (1964), Janowitz (1968), McQuail (1969), Davison & Yu (1974), & Ball-Rokeach (1975), and Wright (1975a). Several chapters in Annual Review of Psychology, although not explicitly socio...