نتایج جستجو برای: duration of use
تعداد نتایج: 21224805 فیلتر نتایج به سال:
any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...
objectives: the aim of this study was to investigate the prevalence and its determinants of antipsychotic use in patients with psychiatric disorders. materials and methods: this study was on patients with psychiatric disorder that have discharged from the hospital. we have assessed all patients with psychiatric interview and evaluation of their psychiatric documentations. results: 90.7% of all ...
Introduction: Risk factors for Vancomycin-resistant Enterococci (VRE) colonization are patient-related factors such as underlying disease or amount of prescribed antibiotics, and hospital-related factors such as duration of hospitalization, type of performed therapeutic procedures, and antibiotic prescription. This nested case control study was performed to determine risk factors of rectal VRE ...
Background and Objectives: Given the increasing prevalence of smart phone usage, it can be considered as an important and significant issue in all aspects of human life. Therefore, the purpose of this study was to study the effect of duration of smartphone use on head and shoulders’ posture of young adults aged 20-35 years. Methods: The statistical population of this study was young people age...
the purpose of this study is to investigate the relationships between teachers’ immediacy behaviors and iranian students’ willingness to talk in english classes. analysis of the results from willingness to talk scale represents a relatively high level of willingness to talk in english classrooms among iranian language learners. the total mean score of students’ willingness to talk was 66.3 ou...
objective: to identify the proportion and some selected characteristics of juvenile diabetics attending birdem hospital. materials and methods: this was a cross sectional study. the study was conducted in the birdem hospital. all diabetic young aged up to 18 years who visit birdem hospital were included in study population. the sample size was 240. results: it was observed that among the respon...
background: osteoporosis is a preventable and treatable disorder, reported with higher prevalence patients with ulcerative colitis but their relationship is controversial. osteoporosis in these patients may be attributes to corticosteroid use, malnutrition and reduced intake of calcium and vitamin d, lower levels of sex hormones, chronic inflammation and inflammatory cytokines. the aim of study...
introduction: we hypothesized that inappropriate attention during the period of abstinence in individuals with substance use disorder can result in an inadequate perception of emotion and unsuitable reaction to emotional scenes. the main aim of this research was to evaluate the attentional bias towards emotional images in former substance abusers and compare it to healthy adults. methods: paire...
a flow-duration curve (fdc) illustrates the relationship between the frequency and magnitude of streamflow. applications of fdc are of interest for many hydrological problems related to hydropower generation, river and reservoir sedimentation, water quality assessment, water-use assessment, water allocation and habitat suitability. this study was carried out in 11 selected watersheds with commo...
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