نتایج جستجو برای: north khorasan
تعداد نتایج: 159462 فیلتر نتایج به سال:
Flood Prioritization of Dehbar Watersheds in Khorasan Razavi Province using TOPSIS Model, Morphometric Analysis and Regional Frequency
BACKGROUND There are many reports on the association between anthracosis and tuberculosis. This study focuses on bronchial anthracosis and associated diseases in the province of South Khorasan-Iran. METHODS This case-series study is performed on patients referred to the Vali-e-Asre Hospital (South Khorasan-Iran) for bronchoscopic evaluations during the period of 2009-2012. Written informed co...
Abstract Over the last fifty years, most of the semi-arid rangeland in Iran has been converted to cropland without an equivalent reduction in grazing animals. This shift has led to heavy grazing pressure on rangeland vegetation. The present study has been conducted in Sisab Research Station in the North Khorasan Province to evaluate effects of long-term grazing exclosures on biodiversity of ra...
Introduction As a natural phenomenon that characterizes the climate system, drought exerts devastating effects on agricultural products, including reducing cultivation levels, decreasing crop yield, and changing cropping patterns, thus threatening the food security of humans and other creatures. Moreover, it brings about some social and environmental consequences such as threatening human heal...
in several field observation of this research ,the main ecological requirenments and ethnopharmacological data about the traditional uses of ziziphora clinopodioides lam. were recorded. the aerial parts of plant were collected in blooming from bovanloo mountain in september 2013 (1728 m ) in north khorasan razavi. essential oil was obtained by hydro-distillation and analyzed by gc-ms. metha...
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