نتایج جستجو برای: primary structure
تعداد نتایج: 2116850 فیلتر نتایج به سال:
اساس نظریه مجموعه های ناهموار، بدین صورت است که برای هر زیرمجموعه از یک مجموعه کلی، با استفاده از یک رابه هم ارزی، یک زوج مرتب از مجموعه ها را معرفی می کند. هر موفه را به ترتیب، تقریب پایینی و بالایی می نامند. تقریب پایین از یک زیرمجموعه،اجتماع تمام عناصری از مجموعه ی کلی است که کلاس هم ارزی مربوط به آن عنصر، در زیرمجموعه ی مورد نظر قرار گیرد و همچنین، تقریب بالا از آن زیرمجموعه، اجتماع تمام عن...
in recent years, the main focus of health sector reforms in iran is the family physician and referral system plan. fundamental changes in the goals and strategies, has increased the necessity of the need to reform the organizational structure. this study tries to review and summarize all cases about the organizational structure of iran and its challenges in primary health care system.this study...
in recent years many researchers have been focused on interaction of small molecules with dna. dna is generally the primary intracellular of anticancer drugs, so the interaction between small molecules and dna can cause dna damage in cancer cells, blocking the division of cancer cells and resulting in cell death. the flavonoids are a large group of polyphenolic natural products that are widely ...
results local level of primary health care system in iran had mechanical structure, but in contextual dimensions the results showed different types. there was a significant relationship between structural and contextual dimensions (r = 0.642, p value < 0.001). goals and culture dimensions had strongest effects on structural dimensions. background in recent years, family physician plan was estab...
in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...
abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...
the primary cilium which is an organelle in nearly every cell in the vertebrate body extends out of the cell surface like an antenna and is known as cell sensor of mechanical and chemical stimuli. in previous numerical simulations, researchers modeled this organelle as a cantilevered beam attached to the cell surface. in the present study, however, we present a novel model that accommodates for...
abstract: the present thesis includes ; one preface and 11speeches , that each speech considered in different researches . the prefact part , studied grammer back ground , the first speech considered a brief description about grammatical credits . the second speech considered the different typs of sentences , from structure and meaning points of view . the third speech considered the verb es...
Background: Postural structure abnormalities have been highly prevalent among children in primary school children.The present study aimed to assess the relationship between the backpacks weight and method of carrying with postural structure disturbances in primary school children. Materials and Methods: This cross-sectional study was performed on 472 primary school children in Karaj-Iran. ...
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