this study investigated the effects of planning on second-language written production with regard to task type. the participants were 75 iranian learners of english as a foreign language attending a private foreign language institution. they were asked to complete two different types of writing tasks (expository writing task and argumentative writing task) in different planned conditions (indiv...

the ability of composing a coherent and extended piece of writing in second language is considered as a fundamental factor to convey information and ideas of learners through the academic issues. although learners may achieve a perfect academic writing skill through assigning the l2 tasks in content based instruction, but demonstration of their abilities may be related to their ability in l1 es...

سندرم روده تحریک پذیر یکی از شایع ترین اختلالات عملکردی دستگاه گوارش است که علت آن نامشخص می باشد. تحقیقات نشان می دهند که بین این سندرم و عوامل اجتماعی ، رابطه وجود دارد. هدف از این پژوهش، بررسی نسبت شانس عوامل اجتماعی مختلف در افراد مبتلا به سندرم روده تحریک پذیر در مقایسه با گروه کنترل می باشد. روش کار : این مطالعه تحلیلی- مقطعی بر 130 نفر از بیماران مبتلا به سندرم روده تحریک پذیر با معیار ...

attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...