چکیده فارسی عنوان : بررسی تغییرات سرمی سدیم در پیش آگهی ضربه مغزی در سن یک ماه تا 18 سال استاد راهنما : دکتر کیاندخت کریمیان، متخصص طب اورژانس، استادیار دانشگاه اساتید مشاور : دکتر پارسا یوسفی، فوق تخصص کلیه کودکان ، دانشیار دانشگاه دکتر محمد رفیعی، دکترای آمار حیاتی، دانشیار دانشگاه نگارش و پژوهش : مینا شیخی دزفولی مقدمه : ضربه مغزی بعنوان دوره ای کوتاه از فقدان هوشیاری است که چند...

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...

the present study was conducted to investigate the effect of implicit focus on form through input flooding and the effect of noticing, explicit focus on form on linguistic accuracy. to fulfill the purpose of the study, 86 iranian pre-intermediate efl learners of one of the language institutes were chosen by means of administering ket as the homogeneity test. these learners were pretested throug...