This research studies the social participation of the parents of delinquent and non-delinquent teenagers on the school affairs in Tehran comparatively. Hirchie's theory of social control were accepted as research framework in the paper. The survey method were used and all the high-school students from the age of 15 to 18 in the district of 4 and 15 in Tehran were chosen. About 60 delinquent and...

AP Kosovo and Metohija is a unique geographical area in Europe, during which the most complex demographic processes, caused by: political conflicts, NATO bombing of 1999, took place 20th century first decades 21st century: killing, ethnic cleansing, persecution segregation population. Since June about 220,000 people were displaced from Metohija. Most them Serbs, followed by non-Albanian populat...

For the leaf succulent Agave deserti and the stem succulent Ferocactus acanthodes, increasing the ambient CO(2) level from 350 microliters per liter to 650 microliters per liter immediately increased daytime net CO(2) uptake about 30% while leaving nighttime net CO(2) uptake of these Crassulacean acid metabolism (CAM) plants approximately unchanged. A similar enhancement of about 30% was found ...

purpose: this study aims to provide a comprehensive understanding about strategies and guidelines of rural tourism planning and management in iran, then with the help of experts and their participation identify and classify the different perspectives in iran rural tourism to finally putting forward a step beyond the current impressions and perceptions. methodology: in the past few decades, rura...

Civics learning as the executor of 21st century is evidence transformation scientific progress and renewal implementation education. required to be able increase student participation in its digital-based environment. Therefore, teachers must not forget their duties a medium create skilled intelligent young citizens by character nation. This study examined application applied through digital st...

The water relations and photosynthesis of Agave deserti Engelm., a plant exhibiting Crassulacean acid metabolism, were measured in the Colorado desert. Although no natural stomatal opening of A. deserti occurred in the summer of 1975, it could be induced by watering. The resistance for water vapor diffusion from a leaf (R(WV)) became less than 20 sec cm(-1) when the soil water potential at 10 c...