نتایج جستجو برای: sabalan region
تعداد نتایج: 538091 فیلتر نتایج به سال:
seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...
the geopolitics of afghanistan after september 11, 2001, and its impact on iranian national security
abstract u.s. attack to afghanistan after 9/11 provided opportunities for us who tried to become the dominant power after collapse of ussr and bipolar world. thinkers like fukuyama believed american liberal democrats thought would be universally accepted without resistances. liberal democracy is the best and final model of governance; in this regard, united state has moral responsibilities for...
Background:Every day, people with addiction cause heavy economic and cultural damage to society. In some circumstances, opioids are used as a tool for suicide, which is often seen in youth. The aim of this study was to investigate the clinical signs of toxicity associated with opium in patients referred to Ardabil city hospital. Methods:This is a cross-sectional study that has been done on opiu...
This study was conducted to determine some mineral content concentrations in soils and plants of three elevation classes (1500, 2200 and 3000m) and two phenological stages of flowering and seedling in north facing slopes of Sabalan rangelands. Soil samples from the depth of 20cm and plant samples using 1×1m plots with 10 replications were collected. After sample preparation, the concentrations ...
Seed protein usually is not sensitive to environmental fluctuations; its banding pattern is very stable which advocated for cultivars identification purpose in crop. This study was planned to study effect of water deficit on protein content and protein banding pattern of wheat genotypes. In this study five wheat genotypes were planted in early November, growing season of 2008-2009. The experime...
Background: Diaper Rash is a common skin disorder in the infancy that makes infants and their parents anxious and nervous. Due to the high prevalence of dermatitis and its complications in addition to adverse effects of chemical drugs, herbal therapy is an appropriate solution. Aim: Comparison of the effects of Chamomile and Calendula ointments on severity of Diaper Rash. Methods: This double-b...
This study the effect of seed preparation (priming) with different concentrations of hydrogen peroxide on the anatomy of the flag leaf and spike two wheat genotypes( Cross Sabalan ( bread wheat) and Saji(durum wheat)) and its relationship with grain yield, under dry land farming system condition, Experimental design was factorial, arranged in randomized complete block. Results showed that the n...
this study was aimed to assess the causes of the structural decline in the renewal rate of apristine oak forest close to rome (central italy) by analyzing long-term measurements of the water budget in open and fenced areas. despite dry climate conditions in the area, long-term soil moisture measurements at 100 cm soil depth indicated that an enough large amount of water is available to oaks dur...
greece has experienced particularly severe and frequent forest fires during summer 2007 together with exceptionally dry meteorological conditions culminated in distinct heat waves. the present study analyzes the time pattern of daily values of two fire risk indices (nesterov and angstrom) based on meteorological data made available for a number of gauging stations between 1 june and 31 august o...
drought detecting is a necessary aspect of drought risk management. it is generally performed usingdifferent drought indices that are effectively continuous functions of rainfall and other hydro- meteorologicalvariables. a number of drought indices have been introduced and used in various countries to date. in thecurrent research, four meteorological drought indices including the standardized p...
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