نتایج جستجو برای: sewerage
تعداد نتایج: 724 فیلتر نتایج به سال:
Evaluation of Aedes aegypti Presence and Abundance in Septic Tanks and Their Impacts on Dengue Transmission Ronald L. Burke, Doctor of Public Health, 2009 Thesis directed by: David M. Claborn Assistant Professor Department of Preventive Medicine and Biometrics Background: Aedes aegypti is the mosquito vector for dengue fever and has historically been considered to prefer ‘clean’ water for d...
The extension of the mains to marginal urban areas does indeed require considerable investment and implies supplying disadvantaged population groups whose ability to pay presents significant collection problems (Lyonnaise des Eaux, Lyonnaise des Eaux also suggests the use of order of priority within contracts, in order to prioritise services in the order of most pressing need, as follows (Lyonn...
Epidemic cholera reached South America in January 1991 and later spread to Central America and the United States. It afflicted 312,000 people and claimed 3200 lives. Since cholera had not been in Latin America for almost 70 years, health authorities allowed environmental health barriers to cholera collapse. For example, the Governments of the Region agreed in 1961 to abide by the Charter of ...
This article presents studies of the abrasive wear resistance fiber-glass composite pipes inner surface, which are laid us-ing microtunneling technology under construction drinking water pipes, irrigation and sewerage systems. Due to a very smooth have high coefficient fluid flow speed transmission through pipe low coeffi-cient roughness. When in long-term operation, movement solid particles pi...
Acute hepatitis is seen sporadically round the year in Bangladesh. The incidence of acute viral hepatitis E increases after floods as this allows sewerage contamination of piped and groundwater. The aim of this retrospective study was to assess the burden of hepatitis E virus (HEV infection) in Bangladesh. Patients attending the Hepatology Unit III of the Bangabandhu Sheikh Mujib Medical Univer...
Aston Business School Research Institute is the administrative centre for all research activities at Aston Business School. The School comprises more than 70 academic staff organised into thematic research groups along with a Doctoral Programme of more than 50 research students. Research is carried out in all of the major areas of business studies and a number of specialist fields. For further ...
Floods generated by rain cause significant economic and human losses. The campus of the Escuela Superior Politécnica del Litoral (ESPOL) has a drainage system that conducts stormwater to two discharge points outside campus. works effectively at macro-drainage level. However, very crowded area is deficient micro-drainage level, which registered flooding proliferation vectors affect people’s heal...
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