abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...

Background: The purpose of the present study was to determine the effectiveness of social skills training on high risk behaviors and communication skills in secondary school students in Kalibar city. Methods: This research is a quasi-experimental study with pre-test and post-test design with control group. The statistical population of this study consisted of all male high school students in K...