Methamphetamine is a psychostimulant drug that is highly addictive and causes epigenetic changes that is associated with symptoms of depression. The aim of the present study is comparing age and gender differences in individuals dependent and independent to methamphetamine and examining the relation of depression with the level of cortisol. In a cross-sectional study, 55 methamphetamine users w...

In the current situation, one of the most important issues of dry and semidry areas is the lack of water sources. In this regard, it's necessary to thank of solutions in order to increase productivity and efficiency of water use in agricultural sector; In this regard, various ways have been put forward by the experts and of the most important of them we can refer to participating agronomists in...

In the current situation, one of the most important issues of dry and semidry areas is the lack of water sources. In this regard, it's necessary to thank of solutions in order to increase productivity and efficiency of water use in agricultural sector; In this regard, various ways have been put forward by the experts and of the most important of them we can refer to participating agronomists in...

hepatitis b virus infection is a major public health problem worldwide. islamic republic of iran is a country in which hepatitisb prevalence is intermediate. the aim of this study is to assess prevalence of chronic hepatitis b infection in iran according to demographic characteristics. all cross-sectional studies concerning  revalence of chronic hepatitis b infection in iran were included irres...

we measured the prevalence of hbv surface antigen (hbsag) among male injection drug users (idus) in detention, tehran, iran. a cross-sectional survey included 499 male idus arrested by police during a predetermined police sweep in tehran (february, 2006). a questionnaire was filled out for each individual. blood specimens were collected for hbsag testing. prevalence of hbsag was 5.8% (95% ci 3....