this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this stud...

رساله حاضر ترجمه فصل پنجم از کتاب "مقدمه ای بر زبانشناسی نظری" اثر لاینز است . در این فصل سه واحد مختلف توصیف دستوری یعنی جمله، واژک [تکواژ] و واژه بررسی شده است . طبق اظهار بلومفیلد "جمله یک صورت زبانی مستقل است ، نه اینکه بوسیله هر گونه ساختمان دستوری در هر صورت زبانی بزرگتر گنجانیده شده باشد" . نکته اصلی تعریف وی را می توان به اختصار بصورت زیر بیان کرد: جمله بزرگترین واحد توصیف دستوری است که...

according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...

dendrimer synthesis strategies now provide virtual control of macromolecular nanostructures as a function of size and surface/interior functionality. these strategies involve the covalent assembly of hierarchical components reactive monomers , branch cells or dendron’s around atomic or molecular cores according to divergent/convergent dendrite branching principles.combinon of two or more dendri...

the purpose of this study was to investigate the relationship between teachers’ class management practices with students’ self- regulated learning and academic self-efficacy. in this study relating to the management class, three dimensions, (training management, people management and behavior management) and three style (interventionist, interactionist and non-interventionist) was considered. r...

power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...