The Use of Electronic Communications in Environmental Health Research
نویسندگان
چکیده
منابع مشابه
The use of electronic communications in environmental health research.
Information on 23,567 Non-Hispanic White, 2,539 Black, and 2,380 Hispanic breast cancer cases diagnosed between 1977 and 1985 was used to evaluate the risk of late stage diagnosis and long duration of symptoms prior to diagnosis in relation to ethnicity, socioeconomic status, age and year of diagnosis. All data were collected by the University of Southern California Cancer Surveillance Program,...
متن کاملcomparative analysis of the use of hedges & emphatics in english and persian academic research articles of sociology & psychology
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15 صفحه اولthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1993
ISSN: 0091-6765
DOI: 10.2307/3431568