many factors may be involved in determining why some students are more and some are less proficient in language. this study tried to explore the factors affecting iranian efl learners’ proficiency. 221 students at second, third and fourth year of university, including 50 male and 171 female were selected randomly to participate in the study. a researcher-made questionnaire and a proficiency tes...

abstract autism is a developmental disability with age of onset in childhood (under 3 years old), which is characterized by definite impairments in social interactions, abnormalities in speech and stereotyped pattern of behaviors. due to the progress of autism in recent decades, a wide range of studies have been done to identify the etiological factors of autism. it has been found that genetic ...

background & aim: evaluation of prevalence of risk factors for breast cancer in different regions of iran and identification of their significant effect on this disease can promote the prevention and reduction of breast cancer incidence. therefore, this study aimed to evaluate the prevalence, demographic characteristics, and frequency of the risk factors of breast cancer during 10 years. method...

conclusions sphingomonas paucimobilis can cause serious infections, especially in immunocompromised patients with determined risk factors such as indwelling catheters and diabetes mellitus, due to the effects of multiple virulence factors, together with biofilm formation. results all the clinical isolates of s. paucimobilis produced biofilms. primary bacteraemia (n = 16) was the most common cli...

poverty is a widespread problem not only inflicting poor nations, but also nations like the united states of america. in the history of the united states, women and racial minorities had always been persistently struggling with poverty. this paper intends to investigate poverty among hispanic women between 2005 and 2010 and identify and analyze the relevant contributing factors. within this per...

the identification and application of the effective factors for improving the efficiency of organization’s operations are the most important aspects of each organization. developmental approaches in human resource management are a typical example of these factors which clearly indicate the importance of human resource as the organization’s main investment and a vital competitive factor. the pre...

background: chronic graft versus host disease (cgvhd) is one of the most serious potential complications of allogeneic bone marrow transplantation. study design and method: we analyzed the incidence of cgvhd and its associated risk factors in a group of 161 iranian recipients of hla-identical sibling transplants, with at least 90 days post-transplantation survival. in the majority of cases (n=7...

this study was performed to identify factors affecting the entrepreneurial university. in order to achieve this goal, a sample of 173 faculty members (academic rank of associate professor or higher) in academic year of 2015-2016 was selected using the using relative stratified sampling and cochran’s formula. in this study, given the purpose and nature of research, for analysis of the data, expl...