The purpose of the present study is to identify the effective factors in citizen participation in waste generation and waste separation and their scientific analysis. In order to accomplish this goal, using descriptive-inferential research method, information was collected by documentary method. The statistical population of the study consisted of the citizens of two districts of Tehran 8 and 1...

Prologned spaceflight results in bone loss in astronauts, but there is considerable individual variation. The goal of this rat study was to determine whether gender influences bone loss during simulated weightlessness. Six-month-old Fisher 344 rats were hindlimb unweighted for 2 wk, after which the proximal tibiae were evaluated by histomorphometry. There were gender differences in tibia length...

Unlike most studies on gender and learning, which use general theoretical frameworks (and instruments) on student learning, this article investigates the Epistemological Reection Model which has been developed from a gender perspective. This cognitive development model includes four hierarchically ordered ways of knowing, and two patterns of reasoning within each of these ways of knowing. The ...