نتایج جستجو برای: nine factors including lithology
تعداد نتایج: 2049815 فیلتر نتایج به سال:
Introduction: Emergency personnel are usually exposed to needle stick injuries (NSI) and contamination with HBV, HCV & HIV. The cost of health and psychological effects of such injuries demonstrates the importance of evaluating its risk factors and preventing it. One of these factors is job stress. Methods: A cross-sectional study was conducted among emergency personnel of 4 university hospita...
In recent years, rapid population growth has led to increase per capita water use in various sectors including agriculture and industry and a growing gap between water demand and water supply has emerged. Therefore, identifying and tracking changes in groundwater resources as an alternative and reliable source of surface water resources are so important to region located in the Middle East with...
Municipal solid waste (MSW) is the natural result of human activities. If an appropriate management system do not use to this problem, it may lead to environmental pollution and jeopardize the human health. Landfill site selection in urban areas is a critical issue due to its huge impact on the economy, ecology, and the environmental health. Therefore, numerous criteria must be considered and t...
extended abstract 1. introduction from about the 1950s, extraordinary growth of cities and increase of urban population have led to excessive growth of settlements in cities (muhallab taha, 2001(. this growth caused an unprecedented rise in land prices (zaheri & pour- mohammadi, 2006). land is an essential element in urban expansion and development (vander molen, 2002). therefore, quality and q...
On April 23, 2019, a meteorite fall occurred in Aguas Zarcas, Costa Rica. According to the Meteoritical Bulletin, Zarcas is brecciated CM2 chondrite dominated by two lithologies. Our X-ray computed tomography (XCT) results show many different In this paper, we describe petrographic and mineralogical investigation of five lithologies meteorite. The bulk oxygen isotope compositions some were also...
The “Danxia landform” is an erosional landform type originally defined in China. It is characterized by redcolored sandstones and steep cliffs, and developed via long-term erosion. Detailed quantitative geomorphometric studies of the characteristics of Danxia landforms in China have not yet been conducted. Using GIS, we conducted DEM-based geomorphometric analyses of 42 watersheds on Mt. Danxia...
In this study, using the frequency ratio (FR) model, an attempt has been made to identify areas with high groundwater potential of the Sira catchment. Effective factors for preparing groundwater potential map including slope aspect, slope percentage, slope length (LS), Elevation, stream power index (SPI), topographic wetness index (TWI), plan curvature, distance to rivers, distance to roads, di...
study of fishes on aquatic ecosystems in many respects, including ecology, behavior, biology, conservation and management of water resources, exploitation of resources and training are important. so in the autumn 2011, the population structure of barilius mesopotamicus was studied. in this order, 69 samples of the mentioned fish from seimareh (34 samples), changoleh (20 samples) and siahgave (1...
conclusion superselective tae for lgi bleeding has a high success and low complication rate. there are no statistical correlations between the clinical success rate and several variables, including embolic material, embolization site, and anticoagulant or antiplatelet medication. patients and methods fifty-two patients who underwent superselective tae for lgi bleeding between 2003 and 2011 were...
Complex patterns of steroidal biomarkers in Tertiary lacustrine sediments of the Biyang Basin, China
Gas chromatography (GC), gas chromatography±mass spectrometry (GC±MS) and gas chromatography±mass spectrometry±mass spectrometry (GC±MS±MS) with co-injected synthetic standards were used to analyse the biomarker patterns of some Tertiary lacustrine clayey dolomites from the Biyang Basin, China. The lithology, low Pr/Ph ratio and high gammacerane content of these sediments indicated that high sa...
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