in this paper, the residential demand for electricity equation is specified and then this equation is estimated using a pooling data for period 1983-90. the results of study for different regions of province show that the demand is less elastic with respect to average price of electricity and residential area, .but it is more elastic with respect to income and average number of households. thes...

objective: microdeletions of the y chromosome long arm are the most common molecular genetic causes of severe infertility in men. they affect three regions including azoospermia factors (azfa, azfb and azfc), which contain various genes involved in spermatogenesis. the aim of the present study was to reveal the patterns of y chromosome microdeletions in iranian infertile men referred to royan i...

this research aims to apply a model to the study and analysis of environmental and natural resource costs created in supply chains of goods and services produced in thailand, and propose indicators for environmental problem management, caused by goods and services production, based on concepts of sustainable production and consumer behavior. the research showed that the highest environmental co...

existence of heavy minerals in waters in some regions causes serious environmental pollution and affects the soil and water resources quality. soil and waters sensitive to pollutants were investigated in this research, based on the degree of sensitivity of their parameters. the samples obtained from industrial and agricultural areas for identifying water tables at higher risk and display region...

Abstract In this research, SPEI (standardized precipitation and evaporation index) was used as an alternative index to SPI to study drought in warm southern coastal regions of Iran. Drought has a multi-scale nature that can be analyzed in time scales via analysis of precipitation and temperature data. Therefore, data were colected from 105 synoptic stations in Iran in 2015; Respective stati...

nowadays the growth of deserts is one the most important problems in iran. this phenomenon has many reasons such as growth of population, global changes in the climates and many undesirable consequences such as the erosion of agricultural soils and immigration of rural people to urban regions mainly to the capital of iran, tehran. isfahan province is one of the semi-arid and desert regions in t...