نتایج جستجو برای: rapid growth

تعداد نتایج: 1088799  

Journal: :Transactions of the American Mathematical Society 2017

2017
Daron Acemoglu Pascual Restrepo Richard Baldwin

Several recent theories emphasize the negative effects of an aging population on economic growth, either because of the lower labor force participation and productivity of older workers or because aging will create an excess of savings over desired investment, leading to secular stagnation. We show that there is no such negative relationship in the data. If anything, countries experiencing more...

Journal: :پژوهش های حبوبات ایران 0
امیری ده احمدی امیری ده احمدی پارسا پارسا نظامی نظامی گنجعلی گنجعلی

in order to evaluate the effects of drought stress at different phenological stages on growth indices of chickpea (cicer arietinum l.) cultivar jam, an experiment was carried out at the research greenhouse of faculty of agriculture, ferdowsi university of mashhad, using a completely randomized design with four replications. drought stress was applied by preventing irrigation until the soil mois...

Journal: :Journal of Clinical Endocrinology & Metabolism 2001

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم پایه 1391

food safety is considered as an important world concern. the detection of pathogen and toxic materials in food has an important role in public health care. in recent years, the applications of microbial biosensor have been developed as a new approach for toxicity control. luminescent microbial biosensor is an appropriate biological tool for protection of natural environment. this type of biosen...

تیموری, اسدالله, گلچین گله دونی, سبحان,

  Present study was carried out to study the effect of growth stage on chemical composition and degradability parameters of DM, NDF and CP in bersim clover (Trifolium repens). Plant samples were collected and studied at 5 stages of vegetative growth stage (second week, fourth week, sixth week, eighth week, tenth week). Ruminal degradability of samples was determined by in situ technique using t...

Journal: :Rocky Mountain Journal of Mathematics 1992

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