نتایج جستجو برای: second exon of bula

تعداد نتایج: 21187492  

Journal: :تحقیقات دامپزشکی 0
محمد مهدی رنجبر گروه میکروبیولوژی و ایمونولوژی، دانشکده دامپزشکی دانشگاه تهران، تهران-ایران غلامرضا نیکبخت بروجنی گروه میکروبیولوژی و ایمونولوژی، دانشکده دامپزشکی دانشگاه تهران، تهران-ایران علیرضا قدردان مشهدی دانشکده دامپزشکی، دانشگاه شهید چمران اهواز، اهواز، ایران مهران دباغیان دانش آموخته دوره دکترای تخصصی ایمنی شناسی، دانشکده دامپزشکی دانشگاه تهران، تهران-ایران

background: major histocompatibility complex (mhc) comprises a group of genes, which plays a central role in immune response. the exon 2 of bula-drb3 is part of the mhc class ii in buffalo that highly polymorphic, found to be associated with resistance/susceptibility to infections and also with production parameters. objectives: the purpose of the present study is to identify bula-drb3 polymorp...

Ali Hashemi Karim Mardani Rasoul Sheikh mohammadi,

The DRB3 gene is a highly polymorphic major histocompatibility complex (MHC) class II gene and plays an important role in variability of immune responsiveness and disease resistance. In the present study, the MHC class II DRB3 gene in water buffalo (Bubalus bubalis) populations from Northwest regions of Iran was investigated through PCR-SSCP. Genomic DNA was extracted from whole blood samples c...

Journal: :iranian journal of veterinary medicine 2010
rasoul sheikh mohammadi ali hashemi karim mardani

the drb3 gene is a highly polymorphic major histocompatibility complex (mhc) class ii gene and plays an important role in variability of immune responsiveness and disease resistance. in the present study, the mhc class ii drb3 gene in water buffalo (bubalus bubalis) populations from northwest regions of iran was investigated through pcr-sscp. genomic dna was extracted from whole blood samples c...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

the ability of composing a coherent and extended piece of writing in second language is considered as a fundamental factor to convey information and ideas of learners through the academic issues. although learners may achieve a perfect academic writing skill through assigning the l2 tasks in content based instruction, but demonstration of their abilities may be related to their ability in l1 es...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

for several years, researchers in familiarity of efl teachers with post-method and its role in second and foreign language learners’ productions have pointed out that the opportunity to plan for a task generally develops language learners’ development (ellis, 2005). it is important to mention that the critical varies in language teaching was shown is the disappearances of the concept of method ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1388

since the 1960s the age effects on learning both first and second language have been explored by many linguists and applied linguists (e.g lennerberg, 1967; schachter, 1996; long, 1990) and the existence of critical period for language acquisition was found to be a common ground of all these studies. in spite of some common findings, some issues about the impacts of age on acquiring a second or...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...

پایان نامه :دانشگاه تربیت معلم - سبزوار - دانشکده ادبیات و زبانهای خارجی 1390

this study investigated the effects of planning on second-language written production with regard to task type. the participants were 75 iranian learners of english as a foreign language attending a private foreign language institution. they were asked to complete two different types of writing tasks (expository writing task and argumentative writing task) in different planned conditions (indiv...

پایان نامه :موسسه آموزش عالی غیر دولتی و غیرانتفاعی علامه محدث نوری (ره) - پژوهشکده اقتصاد 1393

dynamic assessment according to vygotskys sociocultural theory, states that instruction and assessment are interrelated. using static forms of assessment with second and foreign language students could do more harm than good. many teachers neglect to take account of the complexity involved in learning a second or foreign language and often wonder why learning of a language take so long. thi...

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