نتایج جستجو برای: l63

تعداد نتایج: 69  

ژورنال: :به نژادی نهال و بذر 0
سیدسجاد سهرابی s. s. sohrabi حمید دهقانی h. dehghani department of plant breeding, college of agriculture, tarbiat modares university, tehran, iran.گروه اصلاح نباتات، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران بهرام علیزاده b. alizadeh

بررسی اثر متقابل ژنوتیپ × محیط با هدف انتخاب ژنوتیپ های برتر یکی از مهم ترین مراحل برنامه های به نژادی به شمار می رود. هدف از این پژوهش گروه بندی دوازده لاین امید بخش زمستانه کلزا به همراه رقم شاهد اکاپی بر مبنای شباهت پاسخ آن ها به محیط های مختلف با استفاده از روش لین و باتلر بود. آزمایش ها در قالب طرح بلوک های کامل تصادفی با سه تکرار در دو سال زراعی 1391-1389 در ایستگاه های تحقیقاتی کرج، کرما...

1999
Máximo Torero

To understand the impact of science and engineering innovations on economic growth requires relating discoveries to products, and identifying the scientists and engineers who are responsible for the knowledge transfer. Studies reliant on geographic proximity alone can show only that economic activity varies positively with the amount of research being done at a university. [David (1992), Nelson...

2001
JEAN-BENOÎT ZIMMERMANN

– The aim of this paper is the presentation of an approach of firms-territories relationships in terms of firms' nomadism and territorial anchorage of technological and industrial activities. Such an approach is founded on the necessity to overcome the “volatile” firm's level of analysis, in which firm's mobility is investigated from the sole point of view of the leaven location. On the contrar...

Journal: :acta medica iranica 0
hassan ahari nayer farzbod

the object of this paper is to draw attention to iron deficiency anemia which is the most common nutritional disturbance in infants and children. iron deficiency anemia constitutes the most prevalent form of anemia in this age group. the records of infants and children admitted to the pediatric department of tehran university puhlavi hospital for various ailments during a one year period (mnrch...

ژورنال: :پژوهشنامه اصلاح گیاهان زراعی 0
سید سجاد سهرابی حمید دهقانی بهرام علیزاده

درک ساختار و ماهیت اثر متقابل ژنوتیپ × محیط در برنامه های اصلاحی از اهمیت ویژه ای برخوردار است. به منظور مطالعه اثر متقابل ژنوتیپ × محیط و شناسایی ژنوتیپ های پایدار، 12 لاین امیدبخش زمستانه کلزا به همراه رقم اکاپی (شاهد)، در شش منطقه سرد (بجنورد، همدان و اراک) و معتدل سرد (کرج، کرمانشاه و اصفهان) کشور در قـالب طرح بلوک های کامل تصادفی با سه تکرار و به مـدت دو سال زراعی 90-1389 و 91-1390 مورد بر...

2018
Robert Feldmann

Star formation rate (SFR) distributions of galaxies are often assumed to be bimodal with modes corresponding to star-forming and quiescent galaxies, respectively. Both classes of galaxies are typically studied separately, and SFR distributions of star-forming galaxies are commonly modelled as lognormals. Using both observational data and results from numerical simulations, I argue that this div...

Journal: :The Journal of Sexual Medicine 2023

Abstract Introduction Vulvar lichen sclerosus (VLS) often presents with intense pruritus and recurrent painful lesions, negatively impacting quality of life and, potentially, the ability to engage in sexual penetration. VLS treatment ranges from topical steroids systemic antipruritic agents. No studies have yet characterized how concurrent dysfunction impacts treatment. Objective The objective ...

2003
W Liu Z D Zhang

The structural and magnetic properties of rare-earth nanocomposite magnets of a (Nd,Dy)(Fe,Co,Nb,B)5.5 single layer and a (Nd,Dy)(Fe,Co,Nb,B)5.5/α-Fe multilayer prepared by sputtering and heat treatment have been investigated. Incomplete exchange coupling behaviour is observed in the Ti-buffered NdDyFeCoNbB + 40 wt%Fe single layer magnet. After annealing, the laminated nanostructure consisting ...

Journal: :The Journal of Sexual Medicine 2023

Abstract Introduction Vulvar lichen sclerosus (VLS) often presents with chronic pruritus. While VLS is associated feelings of isolation, risk mood disorders among females has yet to be quantified on a large scale. Objective Our objective was assess the association development depressive episode, anxiety disorder, major disorder (MDD), and prescription antidepressants benzodiazepines, evaluate i...

Journal: Iranian Economic Review 2016
Saeid Isazadeh Younes Teymouri

Abstract O ur basic aim in this paper concerns the question that if overusing the Information Technology by service and manufacturing firms can increase the total productivity resulting from this kind of technology regarding the Iran's economic structure and conditions. For this purpose, we primarily evaluate the productivity resulting from the rate of firms' use of IT for...

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