منابع مشابه
From swill milk to certified milk: progress in cow's milk quality in the 19th century.
BACKGROUND Industrialization and urbanization jeopardized infant nutrition during the 19th century. Cow's milk was produced in the cities or transported long distances under suspect conditions. Milk was contaminated with bacteria or adulterated with water, flour, chalk and other substances. When distilleries proliferated in the metropoles, their waste slop was fed to cows which then produced th...
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Great cities connect people; failed cities isolate people. Despite the fundamental importance of physical, face-to-face social ties in the functioning of cities, these connectivity networks are not explicitly observed in their entirety. Attempts at estimating them often rely on unrealistic over-simplifications such as the assumption of spatial homogeneity. Here we propose a mathematical model o...
متن کاملOrganochlorines in breast milk from two cities in Ukraine.
Reports of environmental problems in the former Soviet Union, including excess use of pesticides, have led to concerns about high levels of contamination in humans, but little information is available to assess whether these concerns are warranted. Samples of breast milk from 197 women from two cities in Ukraine were analyzed for p,p'-DDT, p,p'-DDE, endrin, dieldrin, heptachlor epoxide, trans-n...
متن کاملThe role of housing in small cities in the approach of regional development
House is considered not only as one of the main needs of human beings but also as one of the best determining characteristics of living standard. Housing shortages is one of the most acute problems next to the rapid growth of the large cities and their suburbs in developing countries. These cities take all the opportunities, services and the funds Which a country has to offer,, Despite this ...
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ژورنال
عنوان ژورنال: JAMA: The Journal of the American Medical Association
سال: 1907
ISSN: 0098-7484
DOI: 10.1001/jama.1907.25220330029001f