until now many studies have been done over recent decades throughout the world to show the right age to start english. in iran, research is still at an early stage in terms of evaluating teachers’ beliefs about teaching children english. the problem of at what age to start teaching english and how to teach english to elementary school children has not been solved neither in this country nor els...

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...

in reality, most structures involved in geotechnical engineering are three dimensional in nature, and although in many, plane strain or axisymmetric approximations are reasonable, there are some, for which 3-d treatment is required. the quantity of data, and the size of the various vectors and matrices involved in such analysis, increase dramatically. this has sever implications for computer r...

این پایان نامه به همراه یک مقدمه شامل ترجمه هشت فصل از کتاب the nature of necessity آلوین پلنتینگا است. مقدمه شامل شرح مختصری از زندگی و افکار پلتینگابه همراه ملاحظاتی در مورد منطق موجهات و مفهوم ضرورت است. و هشت فصل کتاب پلنتینگا شامل،محدوده ضرورت، وجه گزاره ای و وجه شئ ای، ذات گرا‏یی و تحویل به تئوری مجموعه ها، جایگاه ضرورت، تابع هسته ای، جهان ها، کتابها و ویژگی های ذاتی، شاخص بندی اولیه ذات،...

Having reviewed and evaluated the aggressive intentions security threats in United States' behavior against the Islamic Republic of Iran, this article puts the greatest emphasis on aggressive intention especially "national security doctrine" and mentioning some of its characteristics so by categorizing different approaches toward national security clarify some of vague aspects of this concept. ...