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تعداد نتایج: 16853010 فیلتر نتایج به سال:
abstract this study evaluates the iranian pre-university english textbook in terms of needs, objectives, content, and methodology. the study was designed on the qualitative- quantitative survey basis using interviews and questionnaires, a researcher-made textbook evaluation checklist and a needs analysis questionnaire. the textbook evaluation questionnaire was used in this study to elicit the ...
abstract although music possesses some kind of power and using it has been welcome by many students in language classrooms, it seems that they take a non-serious image of the lesson while listening to songs and they may think that it is a matter of fun. the main objective of the present study was to investigate whether learning a foreign language through musical texts (songs) can have an impac...
to explore the idea the investingation proposed, aimed at finding whether the performances of the population of iranians students studying english in an efl context are consistent in l1 and l2 writing taks and whether there is a cross-linguistic transfer in this respect. in this regard the subjects were instructed to write four compositions-two in english and two in farsi-which consisted of an ...
type text or a website address or translate a document. abstract liquidity is considered the most important aspect of the development of stock markets. the main objective of this study was to evaluate the effect of the quality of financial information provided to replace its financial statements nmvdh and shrkt hayy that the liquidity of the shares on the tehran stock exchange is between the ...
Background and Objective: Hodgkin's lymphoma is a potentially curable hematologic malignancy with difficulty in its diagnosis especially in atypical cases even in expert hands. Today, immunohistochemistry plays a significant role in the diagnosis of it especially applying the anti-CD15 and anti-CD30 antibodies. The negativity of CD15 can be reduced by antigen retrieval for meth...
vocabulary as a major component of language learning has been the object of numerous studies each of which has its own contribution to the field. finding the best way of learning the words deeply and extensively is the common objective of most of those studies. however, one effective way for achieving this goal is somehow neglected in the field. using a variety of activities such as games can r...
تعیین رژیم حرارتی مطلوب و همچنین درصد وزنی بهینه برای ترکیب مواد شیمیایی جهت رسیدن به خلوص بالا و همچنین خواص مکانیکی مورد نظر برای آلیاژ فولاد همیشه یک مسئله مهم و چالش برانگیز، برای صنعت فولاد بوده است. در حال حاضر تعیین این ضرایب از روی تجربه و اطلاعات حاصله از سیستم صورت می پذیرد. قصد ما از بیان این مطلب، معرفی روشهای هوشمند جهت یافتن بهترین ضرایب برای تولید بهینه فولادهای آلیاژی می باشد. ...
Important progresses have been obtained during the last years in the science of processing high resolution radar images. They derive from several facts. At rst we have a better knowledge of the signal statistical properties allowing improved performances for the detection and ltering stages. Then, these low level stages have received a great attention and solutions have been found which are spe...
Background & Objective: The vast use of microwave ovens in today's modern life and possible exposure of users to radiation exited from the oven lead us to investigate the effect of this radiation on sex hormones. In the present study, the effect of microwave ovens radiation leakage on concentration of LH, FSH and testosterone hormones has been investigated. Materials & Methods: Thirteen immatur...
The Zambezi River basin is the fourth largest in Africa. Covering an area of about 1 400 000 km2 that is shared among 8 countries, it is the home of over 30 million people. There are ample opportunities for development in the region, including on the hydropower sector, whose estimated potential still to be exploited amounts to over 8 000 MW. In the future, the Zambezi is thought to be particula...
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