as surfactants enhance the membrane transport of organic compounds, it has to be assumed that they decisively influence the absorption of pollutants from house dust. sampling sites for the surfactant analysis include housing areas, each location of which has different surroundings such as rural, urban, construction, and industrial area. three stations had been selected for each housing area and...

The latest in the most popular head-to-head fighting video series, Super Street Fighter IV by Capcom, now features spectating functionality. Coupled with audio chat, players can both watch and participate in matches with anyone in the world. We describe a video analysis of over 36 hours of gameplay in SSF4. Our results show that players can deftly structure audio when spectating to transform ga...

A British Columbia outreach program aims at preventing sexually transmitted infections and HIV.

granted that literacy is a social practice involving different values, attitudes, feelings, and social relationships, this study attempts to examine literacy practices and the potential changes made through a history of forty years. the study was conducted in the village of cheshmeh, near mashhad, iran, where the social definition of literacy emerged. the data have been collected through partic...

: working in street as a part of child labor is a global problem. several studies have focused on familial factors of child labor in iran. this study is going to present the issue of child labor and its risk factors and impacts on street children in tehran. this study used rapid assessment and response method in 1391-92 in tehran. samples were recruited from street children in tehran as well as...

Our concern is in explaining how and why models give us useful knowledge. We argue that if we are to understand how models function in the actual scientific practice the representational approach to models proves either misleading or too minimal. We propose turning from the representational approach to the artefactual, which implies also a new unit of analysis: the activity of modelling. Modell...

conclusions our results suggested that the prevalence of prescription drugs, alcohol and illicit substance use was relatively low, though still significant, among iranian students, which was strongly associated with family and friends’ use. the findings of this research can be used for planning and evaluating interventions by considering the risk factors and protective factors in universities. ...

conclusions the health status and life situation of street children in this region do not seem appropriate and earning money is the most important motivation to being a street child. unlike violence, the tendency to substance abuse, especially cigarette smoking, was pretty high. on the other hand, the lower age of illicit drug abuse among these children in this study indicates a higher vulnerab...