background: in the present era, delinquency in children and adolescents is undoubtedly a difficult and upsetting issue attracting the attention of many experts such as psychologists, sociologists, and criminologists. these experts often try to answer why a number of children and adolescents engage in various crimes such as aggressive and anti-social crimes. they also try to find out how these c...

The current research is a survey of media literacy status of students in the Information Society in North Khorasan. The theories have been used here are from cultivation, gratifications and knowledge gap to clarify the state of media literacy. This research has been done by survey research method and questionnaire technique was done on 317 students in North Khorasan Universities. The sampling m...

This paper presents result of the first stage of a three-year research project on Development media-based training model. The project aiming at developing training model based on media which in line with teachers need in order to improve elementary school teacher competence in science teaching. In this first stage of research four actions has been conducted, they are: (1) Developing the criteri...

Indexing of visual media based on content analysis has now moved beyond using individual concept detectors and there is now a focus on combining concepts or post-processing the outputs of individual concept detection. Due to the limitations and availability of training corpora which are usually sparsely and imprecisely labeled, training-based refinement methods for semantic indexing of visual m...