نتایج جستجو برای: polymorphism

تعداد نتایج: 107339  

رسول اسدی, شهرام کریمی گوغری مهدیه ساعی

افزایش روزافزون جمعیت، بهره­برداری بهینه از منابع آب به ویژه در بخش کشاورزی را ضروری ساخته است. به­منظور ارزیابی فنی و اقتصادی سیستم­های آبیاری شیاری و قطره­ای در کشت پنبه، آزمایشی بر پایه طرح بلوک­های کامل تصادفی در سه تکرار، در سال زراعی 1389 به اجرا درآمد. در این تحقیق عامل اصلی شامل سه مقدار آب (100% ،  80% و 60% نیاز آبی)  و عامل فرعی شامل دو روش آبیاری (آبیاری شیاری و آبیاری قطره‏ای) بودن...

Journal: : 2022

The polymorphism of liquid cesium at atmospheric pressure in thetemperature range ~590 K the form a second-order phasetransition, announced late 90s, is not confirmed new experimentalworks and computer simulations its properties. At same time, thequestion whether change properties with adecrease or increase density up to two times monotonous isaccompanied by various anomalies needs further rese...

Journal: :E3S web of conferences 2021

This article shows the results of studies in course which a comparative aspect LEP polymorphism was studied subpopulations Holstein dairy cattle cows with fatty hepatosis and healthy animals. is first time such are being conducted. In this case, hepothesis about relationship genetic markers, particular leptin gene, risk developing progression liver disease model when determining frequency occur...

Journal: :Behavioral Ecology and Sociobiology 2021

In eusocial insects, worker polymorphism is shaped by several factors, including colony size, queen mating frequency, and the timing of queen-worker differentiation during larval development. a comparative study 18 species Cataglyphis desert ants representing wide range sizes, we used phylogenetically controlled analyses to examine correlations between head width variation (i.e., polymorphism) ...

Introduction: Schizophrenia is a mental disorder affecting 1% of the world's population. Two of genes have been recognized to be involved in development of this disease: DRD2 and GSTM1. Methods: This case-control study included 100 patients suffering from schizophrenia who referred to Yazd Neuropsychiatry Hospital. Also, 100 healthy patients without schizophrenia were selected as the control g...

Amin Khaleghparast, Hossein Khaleghparast Sharif Khaleghparast

Introduction: A factor known to cause thrombophilia in women with recurrent pregnancy loss (RPL) is the A1298C polymorphism of methylenetetrahydrofolate reductase gene (MTHFR). This study aimed to determine the association between RPL and this polymorphism in Iranian patients. Methods: In this case-control study, 30 patients with a previous history of two or more consecutive unexplained abortio...

Background The tumor necrosis factor alpha (TNF-α) gene is a cytokine involved in systemic inflammation. Results of the association of its polymorphisms with infertility in men are controversial.  Objective The aim of this study was to evaluate the association of -308G/A polymorphism in TNF-α gene with different parameters of semen and sperm in infertile men.  Methods Participants were 210 me...

Journal: :iranian journal of public health 0
daye cheng dept. of transfusion, the first hospital of china medical university, shenyang, p.r. china. bin liang biochip center, college of basic medicine, china medical university, shenyang, p.r. china.

intercellular adhesion molecule-1 (icam-1) lys469glu (k469e) polymorphism and gly 241arg (g241r) polymorphism might play important roles in cancer development and progression. however, the results of previous studies are inconsistent. the aim of this study was to evaluate the association between icam-1 k469e and g241r polymorphisms and the risk of cancer by meta-analysis.a comprehensive literat...

D.S. Nauriyal M.S. Thakur P. Sharma, R. Ranjan S.N.S. Parmar

ThirtyFrieswal lactating cows were screened for clinical and subclinical mastitis and subsequently classified into healthy, subclinically affected and clinically affected groups each group comprising of 10 cows. Polymorphism of cow lactoferrin (LTF) gene promoter was determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The results showed that LFT gene pro...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی تهران 1330

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