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تعداد نتایج: 5806520 فیلتر نتایج به سال:
the importance of writing as a complex skill in applied linguistics has drawn the attention of many researchers to evaluate textbooks in order to help learners gain self-sufficiency and autonomy in the field of language use and communication. investigations have shown that developments in textbooks evaluation can promote the quality of pedagogies and consequently the learning. this study attemp...
this research was conducted to examine the effect of a concurrent training on rest level of leptin of plasma and some hormonal factors in non-athlete subjects. the research population included non-athlete men who didn’t participate in any organized sport activities. 30 men were chosen voluntarily among the above-mentioned population and were divided into 2 groups: experimental (15 subjects) an...
abstract compound is a word-formation process that are made two free morpheme (independent) and forms a new word with a new meaning that consists of meaning of both two component of compound. avestan language is one of the ancient iranian languages that is one of the indo-iranian languages. indo-iranian languages is one branch of indo-european languages. structure of compound noun and adjectiv...
statistical optimization of tannase production by penicillium sp. ez-zh390 in submerged fermentation
tannase has several important applications in food, feed, chemical and pharmaceutical industries. in the present study, production of tannase by mutant strain, penicillium sp. ez-zh390, was optimized in submerged fermentation utilizing two statistical approaches. at first step, a one factor at a time design was employed to screen the preferable nutriments (carbon and nitrogen sources of the med...
Background and purpose: Mechanical and chemical canal preparations are not capable of eliminating all microorganisms from dentinal tubules, so using medical intervention is necessary to fulfill this task. The aim of this study was to compare the antimicrobial effect of Carvacrol and Calcium hydroxide against Enterococcus faecalis in different layers of dentin and different time intervals. Ma...
purpose : rhinoplasty is one of the most common cosmetic surgeries. lateral osteotomy is one of the surgical steps used in rhinoplasty. there are several procedures to determine the tear passage time through nasolacrimal duct (nld) such as dacryocystography, dacryoscintigraphy, taste test, etc. one of the useful tests which can be used for determination of tear passage through nld is dripping o...
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