نتایج جستجو برای: alborz mountain rangeland

تعداد نتایج: 29949  

Journal: :Journal of animal science 1990
M H Ralphs J D Olsen

Through conditioned food aversion learning, livestock can be trained to avoid eating harmful plants. The objectives of this study were to determine whether social facilitation will extinguish an aversion to larkspur (a poisonous plant on mountain rangelands) and to determine whether the aversion can be reinforced to withstand social facilitation in a group-feeding and field-grazing situation. T...

Journal: :تحقیقات جغرافیایی 0
عزیز رحیمی چاکدل دانشگاه گلستان مجید نعمتی دانشگاه کرمان مصطفی رقیمی دانشگاه گلستان معصومه روستائی دانشگاه گلستان مریم آق آتابای دانشگاه گلستان

the present study carried out to identify neo tectonic activity of the gorgan river basin in golestan province, in north of eastern alborz range is investigated by four geomorphic indices including the stream– gradient index (sl), drainage basin asymmetry (af), reveres symmetry of topography (t) and mountain front sinuosity (smf). result from the analysis is accumulated and expressed as an in...

2005
Colleen McVeigh

Livestock herders have historically played a key role in developing and sustaining the rangeland regions of the Greater Himalayas. Rangelands, which cover approximately one-third of the Himalayan land area, are concentrated in the higher elevation regions above 3000 m where grasses and alpine shrubs are the dominant vegetation types. Through the pursuit of various forms of nomadic and transhuma...

2017
Sara Esmaelzadeh Saeieh Mitra Rahimzadeh Mansooreh Yazdkhasti Shoukofeh Torkashvand

BACKGROUND Developing maternal competence in first time mothers has a significant impact on neonate's growth psychosocial development and neonates growth and psychological development. Social support can be an important element for becoming a new mother. We aimed to investigate how social support and maternal competence change during pregnancy and 4 months after it and examine the relationships...

2009
Birgit Müller Martin Quaas Karin Frank Stefan Baumgärtner

Rain-index insurance is strongly advocated in many parts of the developing world to help farmers to cope with climatic risk that prevail in (semi-)arid rangelands due to low and highly uncertain rainfall. We present a modeling analysis of how the availability of rain-index insurance affects the sustainability of rangeland management. We show that a rain-index insurance with frequent payoffs, i....

2015
Tahereh Keramati Ali Tootee Ensieh Nasli Esfahani Mostafa Qorbani Parvin Pasalar Farideh Razi

1Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, IR Iran 2Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, IR Iran 3Department of Community Medicine, Alborz University of Medical Sciences, Karaj, IR Iran 4Non Com...

Journal: :J. Cellular Automata 2012
Seyyed Amir Hadi Minoofam Mohammad Mahdi Dehshibi Azam Bastanfard Parvin Eftekhari

Department of Electrical and Computer Engineering, Parsian Institute of Higher Education, Qazvin, Iran E-mail: [email protected] Department of Computer Engineering, Faculty of Computer and IT, Islamic Azad University, Parand Branch, Parand, Tehran, Iran E-mail: [email protected] Department of Computer Engineering, Faculty of Engineering, Islamic Azad University, Karaj Branch, Karaj...

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