references nikzad f. road traffic injuries and its cause’s damage. ordered by islamic republic of iran traffic police. asas naja 2005. esmaeili a r, pakgohar a. traffic safety. ordered by islamic republic of iran traffic police. asas naja 2006. world health organization. global status report on road safety. time for action. tranlated by hamid soori and his colleagues. ronas publisher, tehran, w...

urban green spaces and parks are important land use of cities which promote quality of life by providing facilities for leisure and also play a crucial role in social cohesion and participation due to their socio-economic and environmental functions. hence the distribution of such spaces is very important in cities. however the zone of 3 in tehran has a relative appropriate green space per capi...

abstract in order to investigate density fluctuation and spatial distribution of the main aphidophagous predators and develop a fixed-precision sequential sampling plan, a weekly sweepnet sampling was conducted at five winter wheat fields in gorgan region in northern iran, during two growing seasons of 2006 and 2007. spatial distribution of the predators was described by fitting data to poisson...

a decrease in natural resources and their non-uniform distribution can affect social relationships between residents ofwatersheds, creating conflict and shifting groupings. the present study used the network analysis method to test thehypothesis that change in hydrologic parameters and water shortages in the village of tutang has led to the new groupingsin the social cooperation network of the ...

introduction according to available statistics, nearly half of the world population is living in cities and there is expectance of increasing in the coming decades. urban areas are the main centers of economic, social and political growth in every country that have prove itself as the most attractive places to build wealth, work, creativity and innovation. but these areas face with important ch...

conclusions as the results of this study show, different factors contribute to different driving behaviors and accidents. the broad scope of these factors links accidents to other social issues and damages. results the findings indicated that in the psychosocial model of driving behavior (including lapses, mistakes, and intentional violations) and accidents, psychological factors, depression (p...