Students attending schools play an important role in the transmission of influenza. In this study, we present a social network analysis of contacts among 1,828 students in eight different schools in urban and suburban areas in and near Pittsburgh, Pennsylvania, United States of America, including elementary, elementary-middle, middle, and high schools. We collected social contact information of...

one of the main concerns of teachers in modern learner-centered approaches is whether published teaching materials can meet the needs of students at a particular leaning situation or the teachers ought to prepare their own materials. this dilemma gets worse when the teaching situation includes a textbook prescribed by an authority such as the ministry of education. in such cases, the teacher ha...

a Assistant Professor of Dental and Maxillofacial Radiology, School of Dentistry, Department of Radiology, Hamadan University of Medical Sciences, Hamadan, Iran. b MS in Medical Physics, School of Para-medicine, Department of Radiology, Hamadan University of Medical Sciences, Hamadan, Iran. c MS in Medical physics, School of Medicine, Department of Medical Physics, Hamadan University of Medical...

Positioning the organization in the strategic environment of its industry is one of the first and most important phases of the organizational strategic planning and in today knowledge-based economy has its importance been duplicated for higher education institutes as the centers of education, knowledge creation and knowledge worker training. Up to now, various models with diverse approaches hav...

BACKGROUND Obesity is a major problem in both developed and underdeveloped countries. The aim of this study is to investigate the effects of a physical education program (PEP) on promoting health belief model (HBM) scores, increasing physical activity (PA), and reducing obesity among Iranian high school students. METHODS This quasi-experimental study was accomplished at four high schools that...