نتایج جستجو برای: multi case study
تعداد نتایج: 5209955 فیلتر نتایج به سال:
iv abstract this study examined the linguistic behaviors of two iranian efl teachers each of them teaching learners of two similar proficiency levels, a beginner level and an intermediate level, to investigate the relationship between the learners proficiency levels and the amounts and purposes for l1 use by the two teachers. the study was carried out to investigate whether there were differe...
in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...
this study examines the effetivenss of task-based activities in helping students learn english language structures for a better communication. initially, a michigan test was administered to the two groups of 52 students majoring in english at the allameh ghotb -e- ravandi university to ensure their homogeneity. the students scores on the grammar part of this test were also regarded as their pre...
This article presents six case studies of the experiences of Turkish women whose husbands were labor migrants. The article opens with an overview of labor emigration from Turkey to developed countries in Europe starting in the early 1960s and continues with a review of the literature that considers migrant women as an analytical category. The literature review then addresses the prevalent emp...
Background: Lung cancer is considered as one of the most frequent cancers worldwide, and has been the cause of more than one <span style="font-variant...
Objective Endometriosis affects women’s physical and mental wellbeing. Symptoms include dyspareunia, dysmenorrhea, pelvic pain, and infertility. The purpose of this study is to assess the correlation between some relevant factors and symptoms and risk of an endometriosis diagnosis in infertile women. MaterialsAndMethods A retrospective study of 1282 surgical patients in an infertility Institute...
abstract: in this thesis, we focus to class of convex optimization problem whose objective function is given as a linear function and a convex function of a linear transformation of the decision variables and whose feasible region is a polytope. we show that there exists an optimal solution to this class of problems on a face of the constraint polytope of feasible region. based on this, we dev...
Background: Acne vulgaris has a multifactorial pathogenesis; however, the exact role of genetic predisposition is not clear. Some studies have reported an association between familiy historyof acne and moderate to severe acne. In this study, we investigated the relationship between familiy history and prevalence of acne vulgaris in girls 8 to 13 years of age.Methods: This case-control study enr...
The first aim of this study is to assess the effectiveness of activities, strategies and processes associated with managers’ empowerment based on the National Human Resource Empowerment Model in Iran. The second aim is to propose a provincial model of human resources empowerment for managers and executives. To collect data, a qualitative research approach including semi-structured interviews an...
The significant costs insert on mineral processes due to mill liner wear including the labor costs, price of material and shut down periods. Therefore, the study of this phenomenon is economically important to optimize the mill operating conditions and liner profile design to decrease the wear rate. There is no appropriate and applicable research on impact wear evaluation of mill liners. In the...
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