نتایج جستجو برای: growing urban population may cause severe resource as well as social impacts so
تعداد نتایج: 7755106 فیلتر نتایج به سال:
Background & aim: The severe reduced fertility rate and growing increase of older population in Iran have led to economic and social consequences in the country. Therefore, the purpose of this study was to investigate the fertility motivations and some of its related factors in women of reproductive age referring to urban health centers. Methods: This cross-sectional study was performed on 450 ...
this study was designed to investigate the impacts of teachers self-disclosure on students foreign language classroom anxiety, attitude to english language learning and their achievement scores at the end of the term. there were 48 female learners of intermediate level. they were not randomly selected. there were one experimental group with 21 students and one control group with 27 students.the...
lack of sewage collection systems, percolation of surface waters, and seepage of wells have raised the groundwater table in shiraz area in the south of iran. the growing population generates environmental pollution resulting in the degradation of the quality of surface and groundwaters used for agriculture. inorganic and organic pollutants have been traced in shiraz water resources. heavy metal...
Limitation regarding water resource along with skyrocketing population growth and its subsequent agricultural production consumption, demand more attention with respect to rational methods of water use and as well as improvement in irrigation system. This in turn will lead to provision of ample water resource and increase in agricultural crops as well as helping the country’s economy. Taking in...
efl/esl textbooks have been regarded as essential language teaching materials with which the learners spend about 70 up to 90 percent of their class time. the important role they play and their vast use make them not only influential in learning the language but also in shaping values and attitudes. put it another way, textbooks socialize learners using their contents (i.e. texts, illustrations...
about half a century ago, following the introduction of urban sprawl up concept, various studies have been conducted to describe the mechanism and the formation of this phenomenon. some of these studies aimed at finding the negative and positive impacts of such phenomenon on urban area with emphasis on how such concept may be looked open from environmental, economical and social perspectives.th...
any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...
Urban highways, as one of the most important sectors of transportation, have always been one of the most challenging, both in terms of budget consumption and its spatial, social, economic and environmental impacts on the city. It has been urban elements. To this end, this study analyzes the impacts of inter-city highways, examines the theories of how to deal with this spatial element, as well a...
abstract al- muntazam by ibn al -jawzi is one of the greatest the book ancient book of texts on history of islam in the 6th century.it is very important one;because of including rare reports which are not found any where.in addition to historical reports,his outlook , in which embodies information on mythologies, milal wa nihal (sects and creeds), geography, and political, social and religiou...
background: during recent years the rapid increase in the senior population, their disabilities, reduced independence, and increased dependence have drawn more attention toward issues related to social support in this group. social support impacts different dimensions of health of the senior population. meanwhile, one of the important aspects of health which is less considered in this group is...
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