improvement in the quality of teacher education is an issue of considerable concern to every country including iran. the challenges that student-teachers face during their education can be highly influential in this regard. consequently, the present study was an attempt to come up with a model for the factors challenging iranian efl preservice teachers using a grounded theory approach. for this...

To quantify gene expressions by quantitative reverse transcription-PCR (Q-RT-PCR) in natural diatom assemblages, it is necessary to seek a biomass reference specific to the target species. Two housekeeping genes, TBP (encoding the TATA box-binding protein) and EFL (encoding the translation elongation factor-like protein), were evaluated as candidates for reference genes in Q-RT-PCR assays. Tran...

In recent years, there has been an increasing amount of literature on genre-based approaches to writing instruction. However, scant attention has been paid to the use of genre-based scaffolding in the realm of academic writing. Hence, in an attempt to tackle the problems prevalent in academic writing, this study set out to investigate the effect of genre-based scaffolding through sentence start...

this study aimed at investigating the english textese of iranian efl learners by scrutinizing the linguistic features through a qualitative design. in doing so, 700 messages were collected from 43 ma iranian efl learners of both genders. the features were categorized and analyzed calculating the frequency and percentage. the findings of the study showed that iranian efl students used different ...

The present study reports on the thematic analysis of Iranian EFL teachers' perceptions of dynamic assessment in relation to their academic degree and length of service. To this end, 42 Iranian EFL teachers participated in the study. Of these teachers, 22 held BA and 20 held MA degrees in ELT-related subjects, with varying lengths of service. Semistructured interviews were used to inquire into ...

Introduction: Diabetic retinopathy (DR) is one of the most serious and most frequent eye diseases in the world and the most common cause of blindness in adults between 20 and 60 years of age. Following 15 years of diabetes, about 2% of the diabetic patients are blind and 10% suffer from vision impairment due to DR complications. This paper addresses the automatic detection of microaneurysms (MA...

introduction: diabetic retinopathy (dr) is one of the most serious and most frequent eye diseases in the world and the most common cause of blindness in adults between 20 and 60 years of age. following 15 years of diabetes, about 2% of the diabetic patients are blind and 10% suffer from vision impairment due to dr complications. this paper addresses the automatic detection of microaneurysms (ma...