Background and aims: The teachers assign very high amount of time to job activities arbitrarily and voluntarily, and this fact may result addiction to work in them, that continuity of these situations will have a positive and negative outcomes. The main goal of current study is evaluating the relationship between extreme dependence to work with job stress and job burnout in elementary school te...

The present study aimed to evaluate secondary school textbooks in terms of prevention components of substance dependence. The research method was descriptive and content analysis. The research population included all secondary school textbooks published in 1397. Sampling was not performed and all research community was surveyed. Data gathering tool was a researcher-made content analysis questio...

Our galaxy is a spiral galaxy and its stars are mostly in a thin disk and rotate around the galactic center. The vertical component of the dispersion velocity of stars is a function of the galactic latitude and decreases with increasing it. In the galactic Besancon model, this dependence is ignored and they just consider the dependence of dispersion velocity on the stellar age. Becanson model i...

  Background : The rapid development of communication and mobile use has generated discussions about changing people's life and their dependence on cell phones. Dependence to mobile phone creates a sense of loneliness and unsuitable social support. This study aimed to determine the relationship between cell phone use and loneliness and social support scores in Tehran University of Medical Scien...