نتایج جستجو برای: review and meta
تعداد نتایج: 17016232 فیلتر نتایج به سال:
a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...
a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...
background and purpose: investigation of the seasonal pattern of brucellosis occurrence may help us to determine the etiology of disease. seasonal pattern of brucellosis in different parts of iran has been reported by several studies. combining the results of these studies provide a reliable estimation of a total seasonal pattern of this zoonosis disease. this study aims to determine the overal...
background: we are living in an era in which different branches of science are growing very rapidly. therefore, retrieving and summarizing all new valid findings on a specific subject is one of the most important priorities of scientists. the aim of the present article is to categorize different review studies within the health domain based on their approach to retrieving and summarizing origin...
background: to conduct a systematic review and meta-analysis on controlled treatment trials of meta-cognitive therapy for anxiety disorders. materials and methods: studies were included if they employed controlled methodology and treated people above 18 years with anxiety disorders. case studies (with less than 4 cases) and single case designed studies were excluded. a comprehensive literature ...
this dissertation has six chapter and tree appendices. chapter 1 introduces the thesis proposal including description of problem, key questions, hypothesis, backgrounds and review of literature, research objectives, methodology and theoretical concepts (key terms) taken the literature and facilitate an understanding of national security, national interest and turkish- israeli relations concepts...
abstract: in contrast to traditional reviews, systematic reviews explore theliterature on a specific topic comprehensively using a well-defined protocol and recruit the findings of eligible studies after the assessment of their qualities, using a clear and reproducible method. checking the assumptions, we may merge the findings of recruited studies in a systematic review and use metaanalysis te...
background: a high prevalence of human t-cell lymphotropic virus type 1 (htlv-1) infection among general population in the northeast of iran has been reported. multi-transfused patients are known as ‘at-risk’ group for the infection. this systematic review and meta-analysis was conducted to estimate the prevalence of htlv-1 infection among iranian multi-transfused patients. materials and method...
objective herpes simplex virus (hsv), one of the most common sexually transmitted disease is a worldwide .this study aimed to prevalence of herpes simplex virus of pregnancy in iran. methods: we searched pubmed, scopus, ovid, science direct and national databases were searched: magiran, iranmedex and science information database (sid) up to october 2015.eventually, we included five studies that...
background : peptic ulcer is common and symptoms such as epigastria pain and heartburn, the results of various studies and aim of study was to evaluate the prevalence of gastric ulcers in the systematic review and meta-analysis is a method. materials and methods : 6 iranian papers in the range of 2002 to 2012 are selected using valid keywords in the sid, goggle scholar and elsevier databases an...
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