نتایج جستجو برای: with population growth in urban areas
تعداد نتایج: 18705683 فیلتر نتایج به سال:
introduction acetic acid bacteria are large group of obligate aerobic gram negative bacteria with the ability to oxidize ethanol to acetic acid (1). they are widely distributed in natural habitats and classified in family acetobacteraceae. members of this family are useful in industrial production of vinegar(2). acetic acid bacteria (aab) can use substrates as glucose, ethanol, lactate or glyc...
introduction according to available statistics, nearly half of the world population is living in cities and there is expectance of increasing in the coming decades. urban areas are the main centers of economic, social and political growth in every country that have prove itself as the most attractive places to build wealth, work, creativity and innovation. but these areas face with important ch...
what is called the problems of tehran metropolis now a days, is deep- rooted in the policies ofurban planning in our country. since not far past up to now, immigration from all over the country to tehran, irregular growth of urban population, inconsistency with urban infrastructure development, environmental pollution and low quality of living areas, erosion of self -growing fabric in most area...
The Change of Support Problem (COSP) reflects a possibility that the outcome of an urban analysis may critically depend on the researcher’s choice of territorial units. To verify this assumption, the present study examines the association between population growth and population size of localities, using population growth data for two levels of geographic resolution 4,667 local administrative u...
Today, the world is facing several problems, including population growth, urbanization, food demand increasing, depletion of water resources, and environmental degradation. "Urban agriculture" as part of urban activities is an opportunity to make positive changes in the world food system and produce quality food. Urban agriculture is a new solution to deal with environmental, social, and econom...
the issue of sustainable development has been widely acknowledged and spread rapidly after united nations conference on environment and development in rio in 1992. considerable attention is given to urban settlement areas. thus, role of urban development is seen as a challenging issue under circumstances. outcomes of the current patterns of world population growth and industrial development are...
the urban squatter settlements is an urban phenomenon which is formed and developed by uncontrolled and irregular urbanization growth in the world and in iran as well and also by migration from the villages towards the cities. urban squatter settlements, as an unbalancing factor in the urban physical equilibrium, is a sign of irregular growth in the cities and the regions and many of the urbani...
بررسی ارزش غذایی تاغ و عمل آوری آن با سود و آهک در مراحل مختلف رشدبا استفاده از روش کیسه های نایلونی
abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...
a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...
In Bangladesh, the size of the urban population is growing at an alarming rate. Its urban population constituted only five % of the total population in 1961 but rose to 18 % by 1991. According to the latest population census report (1991) about 21 million people live in urban areas (Government of Bangladesh, 1994). By the end of this century, the urban population in Bangladesh will probably acc...
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