نتایج جستجو برای: other urban areas
تعداد نتایج: 2175239 فیلتر نتایج به سال:
1.1 Urban forestry in the United States: Status and scope The United States has observed unprecedented urban growth over the last few decades. Nowak et al. (2005) noted that between 1990 and 2000, the share of urban land area in the nation increased from 2.5% to 3.1%. Existing urban areas in the U.S. maintain average tree coverage of 27% (Nowak et al. 2001), and consist of millions of trees alo...
Urban communities have been developing and they are being industrialized. These developments have some benefits for these communities; however, they have created some significant problems. One of these problems in this area is traffic and road congestion and following that, noise pollution on urban areas. These days, noise pollution is one the considerable problems that the residents of crowded...
BACKGROUND costs incurred at the end of life are a main contributor to healthcare expenditure. Urban-rural inequalities in health outcomes have been demonstrated. Issues around geographical patterning of the association between time-to-death and expenditure remain under-researched. It is unknown whether differences in outcomes translate into differences in costs at the end of life. METHODS we...
OBJECTIVE To examine where rural physicians grew up, when during their training they became interested in rural medicine, factors influencing their decision to practise rural medicine, and differences in these measures according to rural or urban upbringing. DESIGN Mailed survey. SETTING Rural Canada. PARTICIPANTS Rural family physicians who graduated between 1991 and 2000 from a Canadian...
Where is the UK's pollinator biodiversity? The importance of urban areas for flower-visiting insects
Insect pollinators provide a crucial ecosystem service, but are under threat. Urban areas could be important for pollinators, though their value relative to other habitats is poorly known. We compared pollinator communities using quantified flower-visitation networks in 36 sites (each 1 km(2)) in three landscapes: urban, farmland and nature reserves. Overall, flower-visitor abundance and specie...
Wind is the carrier of pollutants and any other gaseous or particle matters in the atmosphere. Stable atmosphere with low wind provides favourable conditions for high contamination of pollutants in urban areas. The importance of mesoscale atmospheric flows in air pollution dispersion has been recognized in the past three decades and has been the focus of intensive research both observational ...
OBJECTIVE Comparing the scores of quality of life according to place of residence (urban and rural areas). METHODS A cross-sectional study involving 2142 elderly in urban area and other 850 in rural area of the municipality of Uberaba (Minas Gerais, Brazil). Instruments used: Olders Americans Resources and Services, World Health Organization Quality of Life--BREF (WHOQOL-BREF) and World Healt...
Urban areas and many natural habitats are being dominated by a new selection pressure: anthropogenic noise. The ongoing expansion of urban areas, roads and airports throughout the world makes the noise almost omnipresent. Urbanization and the increase of noise levels form a major threat to living conditions in and around cities. Insight into the behavioural strategies of urban survivors may exp...
In China, the rates of chronic diseases characteristic of countries in nutritional transition have been increasing. However, few studies have examined diet changes in recent decades. We analyzed dietary changes in Tianjin, China. The data in this descriptive, population-based study in ≥18-year-old adults were collected from three surveys from 1986 to 2011. Food consumption and nutrient intake w...
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