High Purity Germanium detectors (HPGe) are subdivisions of semiconductor detectors which are widely used in nuclear technology from space industry to nuclear medicine, due to their high resolution, low dead time, unlimited size and compatibility with a variety of environments. The( absolute and intrinsic) efficiency of the HPGe detector, which depends on the geometry of the source-detector syst...

This study was undertaken to determine the role of cognitive emotion regulation strategies and early maladaptive schemas in the use of virtual social networks among female students. In this correlational study, 398 Tehrani high school girls were selected during 2018-19 school year via Krejcie & Morgan table and stratified sampling method. The instruments included the Virtual Social Networks Use...

Introduction: The purpose of the present study was to determine the components of medical education design based on virtual reality by research synthesis method. Methods: In the present study a synthesis method was used. In order to study the research background and to collect appropriate data among the databases of Science Direct, Springer, Scopus, ProQuest and Eric (ERIC) search. With the ke...

The growing popularity of virtual currencies such as Bitcoin, an Internet innovation with a function similar to "fiat" money or government money, due to the high velocity and efficiency in transactions (especially overseas payments) as well as the elimination of the additional operating costs incurred by intermediaries attract the policymakers and global decision-making centers attention. The p...

Many disciplines in the collection of medical sciences and engineering are based on the basis of chemistry. In order to continue teaching learners in the coronavirus disease situation and to continue the curriculum, various solutions have been proposed and presented, among which it is expected that using technology, the method of educators changes from the traditional approach. New ideas that l...

Introduction: Nowadays applying virtual education has become a main necessity during the Corona pandemic. For this reason, a large part of the medical community, especially medical universities, is using virtual education to continue their educational process during this crisis. Thus, the main purpose of this study is to identify the challenges and opportunities of virtual education based on th...

Background: The purpose of this study was to evaluate effectiveness of virtual reality therapy and mindfulness-acceptance therapy on attention focus and social anxiety symptoms among social anxiety patients who referred to counseling centers of Tehran City. Materials and methods: This semi-experimental study with pretest-posttest design was done on social anxiety patients. The sample consisted ...