نتایج جستجو برای: and d high

تعداد نتایج: 17153014  

Journal: :molecular biology research communications 2015
mostafa saadat

angiotensin converting enzyme (ace; omim: 106180) has an important role in the conversion of angiotensin i to angiotensin ii and degradation of bradykinin. genetic polymorphism i/d (rs4646994) in the gene encoding ace has been well defined. to get more insight into the genetic structure of iranian populations, the distribution of the ace i/d polymorphism among iranians was compared with each ot...

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Journal: :international journal of pediatrics 0
roya kelishadi department of pediatrics, child growth and development research center, research institute for primordial prevention of non-communicable disease, isfahan university of medical sciences, isfahan, iran. mostafa qorbani department of community medicine, school of medicine, alborz university of medical sciences, karaj, iran. mohammad esmaeil motlagh pediatrics department, ahvaz jundishapur university of medical sciences, ahvaz, iran. ramin heshmat department of epidemiology, chronic diseases research center, endocrinology and metabolism population sciences institute, tehran university of medical sciences, tehran, iran. parinaz poursafa department of environmental health, environment research center, research institute for primordial prevention of non-communicable disease, isfahan university of medical sciences, isfahan, iran. maryam bahreynian department of pediatrics, child growth and development research center, research institute for primordial prevention of non-communicable disease, isfahan university of medical sciences, isfahan, iran.

background: sunlight is the main source of vitamin d; therefore, environmental factors might have an important role in the high prevalence of hypovitaminosis d in children. this study aimed to assess the vitamin d status according to the climate of the living area in a nationally representative sample of iranian adolescents. material and methods: this nationwide cross-sectional survey was perfo...

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Journal: Basic and Clinical Neuroscience 2021
Afsane Bahrami, Fariborz Rezaeitalab, Gordon A. Ferns, Hamidreza Bahrami-Taghanaki, Majid Ghayour-Mobarhan, Seyed Kazem Farahmand, Seyed Mostafa Arabi, Zahra Mazloum Khorasani,

Objective: Vitamin D may affect the modulation of signaling pathways in the central nervous system. We aimed to evaluate the effect of high-dose vitamin D supplementation on neuropsychological functions in female adolescents. Methods: We studied the effects of 9 weeks of vitamin D supplementation (50000 IU vitamin D3 [cholecalciferol]/week) on cognitive abilities and sleep disorders in 940 ado...

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Journal: پژوهش در پزشکی 1990
Abdolrahim Naseri, Abolfrazl Soltan Abadi, Ahmad Behvad, Parvaneh Vessal,

Vitamin D resistant rickets with alopecia is a rather rare heritable disease probably caused by a different variety of metabolic disorder of this vitamin. Disturbances of protoplasmic and unclear receptors for vitamin D metabolites in bones and intestinal cells have been proposed as basic mechanism; Alopecia is attributed to hypersensitivity to vitamin D; very much like what usually appears in ...

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پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390
مجتبی ثروت خواه, حمید نادگران,

any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...

15 صفحه اول
ژورنال: پژوهش فیزیک ایران 2010
راشدی, غلامرضا,

In this paper, a dc Josephson junction between two singlet superconductors (d-wave and s-wave) with arbitrary reflection coefficient has been investigated theoretically. For the case of high Tc superconductors, the c-axes are parallel to an interface with finite transparency and their ab-planes have a mis-orientation. The physics of potential barrier will be demonstrated by a transparency coeff...

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Journal: :acta medica iranica 0
hojjat hossein pourfeizi department of orthopedics surgery, shohada hospital, tabriz university of medical sciences, tabriz, iran. ali tabriz department of orthopedics surgery, shohada hospital, tabriz university of medical sciences, tabriz, iran. and students research committee, tabriz university of medical sciences, tabriz, iran. asghar elmi department of orthopedics surgery, shohada hospital, tabriz university of medical sciences, tabriz, iran. hossein aslani department of orthopedics surgery, shohada hospital, tabriz university of medical sciences, tabriz, iran.

non:union: is common complication of fracture management. various factors are involved in its occurring. metabolic and endocrine factors are often overlooked. so that aim of study was to evaluate the level of vitamin d and pth in patients with unexplained non:union: and fractures due to low energy trauma. in the case control study, 30 patients with tibial non:union: compared with 32 patients wi...

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Journal: International Journal of Pediatrics 2016
Maryam Bahreynian, Mohammad Esmaeil Motlagh, Mostafa Qorbani, Parinaz Poursafa, Ramin Heshmat, Roya Kelishadi,

Background: Sunlight is the main source of vitamin D; therefore, environmental factors might have an important role in the high prevalence of hypovitaminosis D in children. This study aimed to assess the vitamin D status according to the climate of the living area in a nationally representative sample of Iranian adolescents. Material and Methods: This nationwide cross-sectional survey was perfo...

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پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391
الهام ابوطالبی, غلامرضا زارعی,

چکیده تحقیق حاضر بر آن است تا وضعیت ارائه لغات را درنمونه ای از کتابهای آموزش زبان انگلیسی در ایران بررسی نماید. به همین منظور، چهار سری از کتابهای عمومی آموزش زبان انگلیسی، (interchange series, top notch series, american english files series, and efl textbooks taught in high and pre-university schools in iran ) که مشتمل بر 28 جلد کتاب در سطوح مختلف می شدند بر مبنای مدل (2001) nationمورد بررسی...

15 صفحه اول
Journal: :international journal of nano dimension 0
n. montazeri department of chemistry, tonekabon branch, islamic azad university, tonekabon, iran.

pyrano [2,3-d] pyrimidinone derivatives have received considerable interest from the pharmaceutical industry due to their wide range of interesting biological and therapeutic properties. nano al2o3 was found to be a highly efficient solid acid catalyst for the preparation of pyrano [2,3-d] pyrimidinone derivatives from the reaction of barbituric acid, aryl aldehyde and malononitrile. al2o3 nano...

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