Ethnography (from greek ἔθνος ethnos "folk, people, nation" and γράφω grapho "i write") is the systematic study of people and cultures. it is designed to.
Epidemiology is the science that studies the patterns, causes, and effects of health and disease conditions in defined populations. it is the cornerstone of public.
“it’s great to get some actual numbers from the field,” says robert howarth, a cornell researcher whose team raised concerns about methane emissions from shale.
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