Introduction & Objectives: The goal of our study was to elucidate the time and factors influencing the transition from non-injection to injection among male heroin users. Materials & Methods: In this retrospective cohort study conducted in Iran from April to August 2007, the data was obtained from the subjects who had never injected heroin at study entry. The total population included 7743 (...

in recent years, there has been a growing interest among researchers to investigate the relationship betweenteacher self-efficacy and classroom behavior management, especially students misbehavior. therefore, this study aimed to comparatively investigate english and arabic teachers’ use of different behavior managementstrategies, their self-efficacy, and their success in an iranian context. th...

The present study tends to investigate the relation between the complexity and semantic distance of Icons and their Effectiveness in searching module of Simorgh, Azarakhsh and Nika applications. Following a correlational survey, the participants of this research consisted of two groups: specialists and end-users. The former consisted of 30 PhD in Knowledge and Information Science, and the latte...