نتایج جستجو برای: c four birds from four challenged groupss
تعداد نتایج: 6480295 فیلتر نتایج به سال:
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...
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...
Prevention of Escherichia coli respiratory infection in broiler chickens with bacteriophage (SPR02).
Bacteriophages are viruses that can infect and kill bacteria. Three studies were conducted to determine the efficacy of bacteriophage to prevent an Escherichia coli respiratory infection in broiler chickens. In the first study 3-d-old-birds were challenged with an air sac inoculation of 10(3) cfu of E. coli per mL mixed with either 10(3) or 10(6) pfu of bacteriophage, or 10(4) cfu E. coli mixed...
abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...
این پژوهش سعی بر آن داشت تا سه کتاب رایج آموزش زبان انگلیسی در موسسات اصفهان را مورد ارزیابی قرار دهد. به این منظور، ابتدا پیمایشی انجام شد که نشان داد سه کتاب four corners،top notchو interchange بیشتر از دیگرکتابهای موجود در بازار مورد استقبال و استفاده این موسسات قرار گرفته اند. پس از انتخاب کتابها برای ارزیابی، این پژوهش در دو مرحله انجام گرفت. در مرحله اول، برای تعیین ملاک های ارزیابی سه کت...
This study was performed to investigate the effects of dietary threonine (Thr). level on performance, metabolizable energy, intestinal morphology, and immune system in coccidian–infected broiler chickens. The diets contained: 88%, 100% (Non challenged (NC) and challenged control (PC)), 112%, 124%, and 136% of Thr requirement according to Cobb 500 recommendation and fed during grower (pre challe...
This article reflects on the visions and motivations underlying Pervasive Computing advances made ending with considering future directions for field. It describes these in terms of four phases: 1) vision-inspired, 2) design engaging experiences, 3) innovation-based, 4) addressing societal challenges. is proposed that we will need to embrace a paradigm shift be far more challenging than previou...
In order to determine the involvement of nitric oxide in the pathogenesis of coccidiosis induced by Eimeria, 30 chickens were challenged with mixed sporulated oocysts of four species of Eimeria (E. acervulina, E. maxima, E. necatrix, and E. tenella) at 26 days of age. There was an increasing of oocyst shedding in the infected birds at 6, 10 and 14 days post-infection. Histopathological examinat...
utopia has, for four centuries, accompanied that hope of progress and that striving for betterment. it now straggles against a widespread sense that this has been an illusion, or an impossible dream. the utopian idea can never entirely disappear, but utopia as a form of the social imagination has clearly weakened. if it cannot instill its vision in the public consciousness, the consequences...
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