نتایج جستجو برای: west central iran
تعداد نتایج: 650483 فیلتر نتایج به سال:
limited studies have been made on the cercariae from freshwater snails in iran. this study was conducted to determine the cercariae fauna of bellamya (viviparus) bengalensis and evaluation of their zoonotic importance in khuzestan province, south-west of iran. for this purpose, 1143 bellamya snails were collected from ahoudasht region in central areas of the province during 2002-2003. bellamya ...
Groundwater resources along with surface-water meet the needs of urban, industrial, and agricultural sectors, therefore, their quality should be examined. Water indices are useful tools for aquifer management. In this research, groundwater Miandoab Plain in province West Azerbaijan, northwest Iran, purposes was investigated. For purpose, concentrations ions Mg2+, Ca2+, Na+, HCO3−, SO42−, Cl− pH...
the abharroud basin is an important region in the archeological studies of northwestern outskirts of the central plateau, and west and northwest of iran. considering its environmental capabilities and geographical location, studying the region can leads us to a better understanding of regional relations and also inter-regional interaction between the mentioned cultural-geographical regions. how...
dust particles have dangerous impacts on human health, the environment, and the economy. recently dust storms, originating from arabian countries, have increased remarkably, affecting western and central parts of iran.hysplit model and the mean monthly maps of aai (absorbing aerosol index), surface skin temperature, and top soil layer moisture from omi (ozone measurement instrument) have been u...
Anopheles superpictus Grassi is one of the most widespread malaria vectors in Iran. Two morphologically independent forms of this mosquito, both at larval and adult stage as well as a great diversity in its mtDNA loci have been previously described in Iran. Because of existence of mtDNA haplotypes, co-occurrence of two forms in diverse climates as well as different roles of populations played i...
In hot arid regions, cooling buildings by passive techniques is very important regarding energy saving and the need to keep clean the environment. In such areas, domed and vaulted roofs are widely used for centuries, such as in the Middle East region and central part of Iran. In this article analysis is made to explore east–west direction of wind flow around north–south vaulted roofs and flat r...
Butter is a readily collected, integrative and inexpensive sampling matrix for the spatial mapping of persistent organic pollutants (POPs) at the national or regional scale. As air-plant-animal transfers generally supply the POPs reaching butter lipid, this study used butter for an initial evaluation of the occurrence, levels and distribution of POPs (selected organochlorine pesticides and PCBs...
Introduction Temperature is one of the important elements of weather, resulting in part from solar energy absorbed by the effects of the Earth's surface and is converted to thermal energy. Maximum temperatures in the hot period of the year, especially in the hours after the city, should be given more attention. Analyzing the maximum temperature can also be normal evaluation mechanism to eval...
Climate risks are the inherent features of Earth's climate. The occurence of heat wave is one of these natural phenomena. Heat waves, one of the basic appearances of climate change, are very important because of frequency and damage of life and property, (Haddow et al, 2008). Frequency of heat wave occurence in recent years, is one of the aspects of climatic changes and extreme weather (Matthie...
Background: In many countries gastric cancer has the highest incidence among the gastrointestinal cancers and is the second most common cancer in Iran. The aim of this study was to identify and map high risk gastric cancer regions at the county-level in Iran. Methods: In this study we analyzed gastric cancer data for Iran in the years 2003-2010. Areato- area Poisson kriging and Besag, York and ...
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