OBJECTIVE Injuries are the leading cause of death in children, and media exposure seems to increase children's risk-taking behavior. Televised sports are commonly viewed by children. The objective of this study was to determine the proportion of commercials that depict violence or other unsafe behavior during major televised sporting events that are aired before 9:00 pm. METHODS We obtained a...

Roll-out of antiretroviral treatment (ART) raises concerns about the potential for unprotected sex if sexual activity increases with well-being, resulting in continued HIV spread. Beliefs about reduced risk for HIV transmission with ART may also influence behavior. From September 2003 to November 2004, 234 adults enrolled in a trial assessing the efficacy of modified directly observed therapy i...

Aiming to solve the problems of large environmental interference and complex types personnel behavior that are difficult identify in current identification unsafe mining areas, an improved spatial temporal graph convolutional network (ST-GCN) for miners’ a transportation roadway (NP-AGCN) was proposed. First, skeleton spatial-temporal map constructed using multi-frame human key points used reco...

We present a compositional analysis to detect Zeno behavior in Timed Automata with Deadlines. A syntactic analysis is defined, based on Tripakis’ strong non-Zenoness property, which identifies all elementary cycles where Zeno behavior may occur. This analysis is complemented by TCTL reachability properties, which characterize the occurrence Zeno behavior in potentially unsafe cycles.

Because workers’ behavior and attitudes toward safety are crucial factors affecting the likelihood of construction accidents, traditionally, surveys have been taken or field observations conducted at a site to measure the safety climate. Although most accidents are directly or indirectly related to persons’ unsafe acts, such traditional methods have practical limitations for periodic applicatio...

Adaptive flight control systems hold tremendous promise for maintaining the safety of a damaged aircraft and its passengers. However, most currently proposed adaptive control methodologies rely on online learning neural networks (OLNNs), which necessarily have the property that the controller is changing during the flight. These changes tend to be highly nonlinear, and difficult or impossible t...

introduction: construction phase in industries is a dynamic process that is naturally and intrinsically dangerous and as it becomes more complicated, the accidents rate also increases. one should note that without considering a model, one could not obtain useful and reliable information and method to prevent accidents. therefore, to achieve useful methods for preventing accidents, it is desirab...