نتایج جستجو برای: classes i and ii
تعداد نتایج: 17180429 فیلتر نتایج به سال:
دراین پایان نامه ارزیابی بازده به مقیاس (rts) بااستفاده ازجوابهای چندگانه درمبحث تحلیل پوششی داده ها (dea) مورد بحث و بررسی قرارمی گیرد و بعلاوه وجود جوابهای چندگانه رابه دو نوع (i)و(ii) تقسیم می شود. جوابهای چندگانه نوع(i)، وجود جوابهای چندگانه در یک مجموعه مرجع را درنظرمی گیرد و جوابهای چندگانه نوع (ii) ، وجود جوابهای چندگانه برابرصفحه های پشتیبانی که از مجموعه مرجع می گذرند را مورد بررسی قرا...
this study was conducted to investigate the impact of podcasts as a learning and teaching tool on iranian efl learners’ motivation for listening as well as on their listening comprehension ability. the study also investigated the learners’ perception towards listening to podcasts and examined whether the learners were likely to accept podcasts. out of fifty-five intermediate learners studying e...
on- the-job training on of the most effective tools for managers to cope with the changing organizational environment. it grantess suitable services to customers, particularly in public service enterprises. if such training os goal oriented, planned systematically, and tailored to the employees, job content, then not only it could increase employees and organizational performance, but also it c...
this study was designed to investigate the structural characteristics of beech forests in the middle stage of ecological succession. in order to this purpose undisturbed beech stands in kheyroud forest had chosen and three one hectare sampling plot laid out. all of tree species measured with full callipering method and diameter and height of trees were recorded. natural regeneration within one ...
Background: Diabetes mellitus is the most common metabolic endocrine diseases that is along with disorder in metabolism of carbohydrate, fat and protein .Usage ofcyto-morphometric method in evaluation of qualitative and quantitative changes in epithelium of oral mucosa remained unknown and few studies have been done in diabetic patients in thisregard. Therefore, the goal of this study...
Desertification is the result of a series of important processes. Among them, climate change and human activity are the most important. Arid and semi-arid regions cover a vast area of Iran (85%). The hazard assessment of desertification and preparation of desertification intensity maps are key tools for management of desert regions. This research assessed the efficiency of the MICD model for ha...
this study was conducted to investigate the impact of portfolio assessment as a process-oriented assessment mechanism on iranian efl students’ english writing and its subskills of focus, elaboration, organization, conventions, and vocabulary. out of ninety juniors majoring in english literature and translation at the university of isfahan, sixty one of them who were at the same level of writing...
Two peroxidases (EC. 1.11.1.7), POD I and POD II were purified from the roots of cultivatedRaphanus sativus L. Var. Cicil by one step ion-exchange chromatography after fractionation by acetone. The molecular weight of these enzymes were 43000 and 41000 Daltons and RZ 1.2 and 2.0 for POD I and POD II, respectively. Both enzymes consisted of a single polypeptide chain on SDS-PAGE. The maximum...
Let $R$ be a commutative ring and let $I$ be an ideal of $R$. In this paper, we will introduce the notions of 2-absorbing $I$-prime and 2-absorbing $I$-second submodules of an $R$-module $M$ as a generalization of 2-absorbing and strongly 2-absorbing second submodules of $M$ and explore some basic properties of these classes of modules.
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
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