نتایج جستجو برای: more yield and economic returns

تعداد نتایج: 16931477  

2009
Pasquale Della Corte Lucio Sarno Ilias Tsiakas

This paper provides a comprehensive evaluation of the short-horizon predictive ability of economic fundamentals and forward premiums on monthly exchange-rate returns in a framework that allows for volatility timing. We implement Bayesian methods for estimation and ranking of a set of empirical exchange rate models, and construct combined forecasts based on Bayesian model averaging. More importa...

Journal: :علوم گیاهان زراعی ایران 0
حمیدرضا چقازردی دانشجوی دکتری رشتة اکولوژی گیاهان زراعی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج محدرضا جهانسوز استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج علی احمدی استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج منوچهر گرجی دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

to study the effects of different tillage systems on yield and some characteristic of wheat and also some soil properties in wheat dry land area, six experiments were performed in cold, moderate and semi-warm climatic conditions of kermanshah province in west of iran, in a randomized complete block design with five replications. experimental treatments were consisted of no-tillage, reduced till...

Journal: :SSRN Electronic Journal 2015

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...

Journal: :تحقیقات اقتصادی 0
محسن ابراهیمی دانشیار، دانشگاه بوعلی سینا علی اکبر قلی زاده استادیار گروه اقتصاد دانشگاه بوعلی سینا امیرحسین علی پور کارشناس ارشد اقتصاد دانشگاه بوعلی سینا

in the recent decade, supply of labour force has increased which may causes theovereducation. overeducation is potentially costly for any economy. in this study,we examine the effective factors on overeducation, undereducation and returns ofyears of schooling, by using the mean realized match method, over iscoclassification data from household socio-economic survey in year 2003 usinglogit,mince...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده ادبیات و زبانهای خارجی 1390

bserved by many teachers that most of the time, mumbling and searching for their intended words, students complain why they have forgotten the words they have learned in the previous semesters. they ask for some new ways that may help them to recall and apply the learned words more efficiently, since as they declare one of the most important skills in foreign language learning is having a g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده ادبیات، زبانهای خارجی و تاریخ 1391

the aim of conducting this study was to investigate the foreign language learning needs of undergraduate economics students and business management students in faculties of social sciences of alzahra and azad naragh university. in the study, which was designed on the basis of a qualitative-quantitative basis using interviews and questionnaires, 146 female undergraduate business management as we...

Journal: :journal of ornamental plants 2015
m. k. prithvi raje urs k. k. a. sarkar

sericulture has played a very important role in the socio-economic empowerment of rural and semi-urban population. the eco-friendly nature of the industry, in addition to its employment generation potential, low investments and frequent returns, has rendered the industry as one of the most suitable land based economic activity, particularly in the context of global movement against environmenta...

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