OBJECTIVES To examine the risk of sleep problems associated with work stress (job strain, job demands, and decision authority), worries and pain and to investigate the synergistic interaction between these factors and traffic noise. METHODS Sleep problems and predictor variables were assessed in a cross-sectional public health survey with 12,093 respondents. Traffic noise levels were assessed...

conclusions better understanding of the effectiveness and efficiency mechanism and having valid evaluation required considering specific theories and points in this field. applying a dynamic approach with considering epidemiological concepts and sophisticated statistical models could improve quality of studies in this field. results from a total of 797 articles, 20 were eligible which among the...

Road traffic accidents are the leading cause of death in international travelers. With the growth of international travel, the number of visitors who rent a vehicle upon arrival at their destination by air or by sea is expected to increase. Jet lag is a well-recognized maladaptation to international travel across multiple time zones. Little is known about the possible influence of jet lag sympt...

Peer-to-peer (P2P) applications generate a huge amount of traffic. We believe that caching of P2P traffic is a promising approach to mitigate the negative effects of P2P traffic. We have designed and implemented a proxy cache for P2P traffic, which we call pCache. pCache transparently intercepts and serves traffic from different P2P systems, while not affecting other Internet applications.