Asthma is one of the most common problems of childhood, responsible for a significant proportion of abstinence from school because of chronic illness. This study was carried out among the school-aged children (7-18 years) in Tehran schools during 2002-2003, in order to determine the frequency of asthma. According to the recommendation of WHO (World Health Organization), we designed a questionna...

Background and Objectives: Refugees are often further susceptible to food insecurity in host countries. This study was carried out to review food insecurity statuses of Afghan refugees in Iran. Materials and Methods: A comprehensive search was carried out using keywords of "food insecurity", "food security", "Iran", "Afghan", “immigrant” and "refugee" in English databases, including Scopus, We...

the aim of this study was to investigate the difficulties of writing physical education and sport sciences theses for master graduate students. master theses written in physical education and sport sciences field comprise a considerable portion of researches carried out in this field; therefore, it is necessary to recognize and alleviate these problems and difficulties. for this purpose, perspe...

BACKGROUND Demodicosis is one of the most prevalent skin diseases resulting from infestation by Demodex mites. This parasite usually inhabits in follicular infundibulum or sebaceous duct and transmits through close contact with an infested host. METHODS This study was carried from September 2014 to January 2016 at Tehran University of Medical Sciences, Tehran, Iran. DNA extraction and amplifi...

today many of wide scope and famous organizations design and develop hse models to achieve a more suitable hse management system for their own purposes. to implement such models some requirements should be considered in line with defined goals and missions. the present study was carried out in order to achieve the hse management system for children and adolescents in education and training cent...