نتایج جستجو برای: contamination
تعداد نتایج: 52892 فیلتر نتایج به سال:
OBJECTIVE We present 3 cases of suspected radioisotope urinary contamination that occurred on a single day. Because net clearance is via the kidneys, the injected dose is excreted in patients' urine. It is important to recognize the patterns of urinary contamination to avoid reporting false-positive abnormalities. MATERIALS AND METHODS (99m)Tc-Medronate was administered intravenously and whol...
Purpose. Knowing and evaluating the degree of pollution caused by elements under study, Statement potential environmental hazards index. in Samarra city-Iraq to know limits mineral pollution, because an increase them is harmful humans. Methodology. The first step starting work for current as modeling was carried out a field tour November each region depth, concentrations heavy approved study (m...
BACKGROUND Current priorities for diarrhoeal disease prevention include use of sanitation and safe water. There have been few attempts to quantify the importance of animal faeces in drinking-water contamination, despite the presence of potentially water-borne zoonotic pathogens in animal faeces. OBJECTIVES This study aimed to quantify the relationship between livestock ownership and point-of-...
readymade garment industries are the prominent economic sector for bangladesh as well as scoping the huge working area for workers. but health condition of workers, drinking water quality, and proper maintenance of the environmental parameters are not well monitored. this study aims to assess the physio-chemical and bacteriological quality of drinking water provided for the garment workers in d...
transmission of human pathogens can be occurred via inert objects. paper currency is a further common contact surface whereby pathogens can be transferred within a population although the significance remains unknown. hence, the aim of the present study was to investigate microbial populations associated with iranian paper currency.this study was carried out by getting 108 samples of the irania...
vegetables, used in preparing salads, are most important part of the diet. these materials are often irrigated by untreated urban wastewater. wastewater, contaminated with ova of parasites, bacteria and protozoa, are used as fertilizers and it can cause a variety of infectious diseases. the purpose of this study is detection of microbial contamination of salad used in ilam’s restaurants. in thi...
background: microorganisms on various surfaces in industrial and residential environments can spread infectious diseases. their control is thus a major concern. the aim of this study was to survey the bacterial contamination of elevator buttons in schools of isfahan university of medical sciences, isfahan, iran in the summer of 2011. methods: this study was done as a cross sectional research. a...
OBJECTIVE To evaluate the influence of saliva contamination on the bond strength of metallic brackets bonded to enamel with hydrophilic resin composite. METHODS Eighty premolars were randomly divided into 4 groups (n = 20) according to bonding material and contamination: G1) bonded with Transbond XT with no saliva contamination, G2) bonded with Transbond XT with saliva contamination, G3) bond...
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