Plasters are produced from a light refractory material, mainly MgO (M.P. 2800ºC), a binder, and a void forming substance for insulating purposes. Different oxides from the slag penetrate into these voi...

since motion verbs of russian language is one of those complex issues in russian language syntax, iranian students who are learning russian language face problems when learning this grammatical category. these problems in learning appear in two stages. a)the stage of learning and understanding the meaning of these verbs in the russian language itself; b) the stage of transition of these verbs f...

To  communicate  effectively,  learners  have  to  become  proficient  in  both  the  language  and  the culture of the target language.  Being aware of socio-cultural frameworks does not mean that as an outcome of instruction learners have to become "native-like," but an awareness of L2 cultural norms can allow learners to make their own informed choices of how to become competent and astute l...

kurdish language is one of the iranian languages and the historical study of the phonetic system of khorasan kormanji dialect, can clearly show that this language has been under the influence of iranian languages, especially persian language. the author of the article has used prof. tsablof’s (the most famous russian orientalist) publications, to show the persian language influence on khorasan ...

  This study represents a highly efficient and regioselective ring-opening of epoxides with acetic anhydride in the presence of NaOAc<span style="font-size: 10.0pt; font-family: 'Times ...