نتایج جستجو برای: rangul v and hustvedt b
تعداد نتایج: 16988325 فیلتر نتایج به سال:
in this study, the relationship between teachers’ creative and critical thinking skills and their reflectivity in teaching was investigated. to this end, three questions were raised. these questions were intended to determine whether there was a significant relationship between teachers’ creative thinking skills and their reflectivity in teaching; whether there was a significant relationship be...
در این تحقیق تعدادی از ترکیبات آلی فسفر جدید با فرمول عمومی: (r1)p(o)(r2)(r3) و مشخصات زیر سنتزشد: (r1cl,r2m-tolyl o-and r3cl (i)), (r1m-ch3phnh--,r2cl and r3cl (ii)), (r1p-ch3phnh-, r2cl, and r3cl (iii)), (r1m-ch3phnh-, r2m-tolylo-and r3cl (iv)), (r1p-ch3phnh-, r2m-tolylo-and r3cl (v)) (r1m-ch3phnh-, r2m-tolylo-and r3m-ch3phnh- (vi)). برای سنتز این ترکیبات ابتدا متاکرزول به فسفریل کلراید اضافه...
separation of ten sedative- hypnotic drugs was performed by rp-hplc using mixed micellar mobile phase. effect of temperature, type and amount of organic modifier in mobile phase on efficiency (n) and asymmetry factor (b/a) showed that, the appropriate conditions for a good separation were 35°c and 7% (v/v) butanol in mobile phase. variations of selectivity factor versus butanol concentration, ...
this research is a study on indicators of listening instruction in iranian english as a foreign language (efl) curriculum at guidance school and high school educational levels. this thesis aims at determining: a) the indicators of listening instruction at guidance school and high school efl curriculum. b) the indicators of listening instruction in irans guidance school and high school efl curri...
this study investigates the relationships between iranian efl teachers’ perfectionism, burnout and their teaching style preferences, and also the difference between male and female efl teachers and their teaching style preferences. to this end, a sample of 99 efl teachers (46 males and 53 females), who had years of teaching experience, were selected. the measurement scales used in this study we...
the root of ophiopogon japonicus has been used as a traditional chinese medicine and also a functional food ingredient for a long time in china. in the present study, 17 different homoisoflavonoid compounds were identified in the root extract of o. japonicus by hplc–dad and lcms/ms analyses. the antioxidant activity of the of chloroform/methanol (1:1, v/v), methanol and 70% ethanol extracts, an...
Objective: Sweet potato whitefly, Bemisia tabaci Gen. (B. tabaci), is one of the most important pests of various greenhouse crops in Iran. Nowadays, chemical insecticides are broadly used for control of the pests that causes risk to consumer's health. For the first time, contact toxicity of Pelargonium roseum Andrews and Artemisia sieberi Besser essential oils on B. tabaci and its possible appl...
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...
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