نتایج جستجو برای: urban population will reach 70 percent in 2050urban areas
تعداد نتایج: 17133563 فیلتر نتایج به سال:
this thesis aims at putting together two of the vestest areas of study there is in humanities: bioethics and literature. the two novels in question, oryx and crake and the year of the flood, are considered as some of the most succssful examples of spculative fiction. in these novels the biological and environmental issues raised as looked at from a bioethics point of view.
Human settlements experience continual change. In recent years, many rural areas have experienced dispersed grow (rural sprawl) and population declines in traditional village centers (Hollowing). These paradoxical phenomena have occurred in most developing countries, including rural Iran. This study examines this phenomena in three Iranian villages of Kahak area of Qom province, and develops a ...
Some of the data used in this analysis are derived from sensitive data files of the Panel Study of Income Dynamics, obtained under special contractual arrangements designed to protect the anonymity of respondents. These data are not available from the author. Persons interested in obtaining PSID sensitive data files should contact Abstract The proportion of the population residing in high-pover...
the concepts of similarity and dissimilarity have been the interest of many researchers. basically, in the studies the similarity between two objects or phenomena, has been discussed. in this thesis, we consider the case when the resemblance or similarity among three objects or phenomena of a set, 3-similarity in our terminology, is desired. later we will extend our definitions and propos...
Expended Abstract Introduction: Urban neighborhoods are a symbol of urban poverty and its spread over time, mainly due to over-migrations, economic fluctuations, the rapid growth of urbanization, and the neglect of the housing and shelter needs of low-income groups. The World Commission for the Future of Cities in the 21st Century warned that, as urban superlife grows, urban poverty in souther...
The purpose of this study is to assess the possibility of generating energy from waste and reducing the consequences of unconventional waste disposal in urban areas of Mashhad. The findings indicate that among five variants under study, variant 5 which allocated the highest energy efficiency, the lowest costs, and the least amount of greenhouse gases to itself was applicable for the city of Mas...
Rwanda: Primary energy supply is dominated by biomass resources in Rwanda. Wood supplies about 57 percent directly and wood for charcoal 23 percent, while agricultural residues and peat provide 6 percent and petroleum products 11 percent. Only 5 percent of the country’s population are connected to the electricity grid, with 3 percent of these being in the rural areas and 25 percent in the urban...
BACKGROUND: Public health applications using geographic information system (GIS) technology are steadily increasing. Many of these rely on the ability to locate where people live with respect to areas of exposure from environmental contaminants. Automated geocoding is a method used to assign geographic coordinates to an individual based on their street address. This method often relies on stree...
background: the aim of present work was to evaluate the drinking water quality from various regions including both urban and rural areas of hamadan province, western iran. methods: in this cross-sectional descriptive study, the samples were collected for a periods of 12 months between january 25, 2014 and january 25, 2015 from frequently used household taps as well as from municipal and communa...
By Stephen A. Barlow, Ian A. Munn, David A. Cleaves, and David L. Evans T he potential impact of urbanization on the South’s timber supply is dramatic. Between 1960 and 1990, the South’s share of the nation’s population increased from 30.7 percent to 34.4 percent (US Department of Commerce 1992). The amount of land in the South swallowed by metropolitan areas has more than doubled, from 9.8 per...
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