نتایج جستجو برای: Production gap

تعداد نتایج: 738498  

Journal: :اقتصاد و توسعه کشاورزی 0
مقدسی مقدسی شرافتمند شرافتمند باغستانی باغستانی

abstract comparison of food prices in different periods, indicates fluctuations and continually upward trend. any change in agricultural sector variables, as main food supplier, will affect food price. productivity shocks and production gap are examples of such variables. in this paper ,hodrick prescott and kalman filters are used as generators of productivity shocks and production gap series. ...

Journal: :Scientific reports 2016
Maria Cristina Rulli Davide Bellomi Andrea Cazzoli Giulia De Carolis Paolo D'Odorico

Recent energy security strategies, investment opportunities and energy policies have led to an escalation in biofuel consumption at the expenses of food crops and pastureland. To evaluate the important impacts of biofuels on food security, the food-energy nexus needs to be investigated in the context of its linkages with the overall human appropriation of land and water resources. Here we provi...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1392

این تحقیق به منظور یافتن تاثیر دو نوع task به نام های information gap و opinion gap بر روی نوشتار زبان آموزان برون گرا بوده است. به این منظور گروهی از 110 دانش آموز دبیرستانی به پرسشنامه آیزنک پاسخ دادند که از بین آنها 91 دانش آموز برون گرا انتخاب شد. این 91 نفر قبل از شروع کار برای همگون سازی در آزمون پت شرکت کردند. در نهایت دو گروه که یک گروه شامل 32 دانش آموز با opinion gap taskو یک گروه 30 ...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم انسانی 1390

this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...

Reza Esfanjari kenari, Seyadeh Sedighe Ahmadzade Zohre Karami

This paper presents an analysis of technical efficiency and technology gap ratio (TGR) in greenhouse cucumber in Fars Province, Iran. Cucumber production was chosen for this study for the reason that greenhouse productions in this provincemainly have focused on this product. The data used in this study was obtained from a random sample of 127 greenhouses in Fars Province for 2010 to 2011. Metaf...

In this commentary, the idea of closing the gap between knowing and doing through closing the gap between academics and practitioners is explored. The two communities approach to knowledge production and use, has predominated within healthcare, resulting in a separation between the worlds of research and practice, and, therefore, between its producers and users. Meaningful collaborations betwee...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده شیمی 1392

krytyn triplet alkyl esters ayzvsyanydha reactions and lead to the production of acetylene is stable.

زیبایی, منصور , جعفری ثانی , مریم ,

While technical efficiencies of firms that are estimated with respect to a given frontier are comparable, this is not normally valid the case among firms that operate under different technologies. Such problem arises when comparisons of firms from different regions of country are involved. This study uses the concept of the metafrontier function to investigate regional differences in milk produ...

ژورنال: علوم آب و خاک 2008
زیبایی, منصور , جعفری ثانی , مریم ,

While technical efficiencies of firms that are estimated with respect to a given frontier are comparable, this is not normally valid the case among firms that operate under different technologies. Such problem arises when comparisons of firms from different regions of country are involved. This study uses the concept of the metafrontier function to investigate regional differences in milk produ...

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