منابع مشابه
John J . O ' Shea , and Eric
Ingestion of opsonized foreign particles by phagocytic cells is a critical event in host defense against invading microorganisms, and factors that influence the rate and extent of phagocytosis are of particular interest. Fibronectin, a molecule found both in plasma and as a component of extracellular matrix, binds to phagocytic cells and enhances opsonin-mediated phagocytosis by monocytes, macr...
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This exchange represents a follow-up to an article on the effects of state high school exit examinations that previously appeared in this journal (Warren, Grodsky, & Kalogrides 2009). That 2009 was article featured prominently in a report by the National Research Council (NRC) that evaluated the efficacy of test-based accountability systems. Hanushek (2012) was highly critical of the NRC’s inte...
متن کاملClimate change , society issues and sustainable agriculture Eric
Despite its prediction 100 years ago by scientists studying CO2, man-made climate change has been officially recognised only in 2007 by the Nobel prize committee. Climate changes since the industrial revolution have already deeply impacted ecosystems. I report major impacts of climate change on waters, terrestrial ecosystems, agriculture, and economy in Europe. The lesson of the climate change ...
متن کاملJohn Kemp ( 1999 ) Spontaneous Change , Unpredictability and Consumption Externalities
This paper presents a dynamic model of consumer choice incorporating consumption externalities. The model is deliberately minimalist and symmetric, so that there are no endogenous or exogenous factors causing consumers in aggregate to favour one particular commodity rather than another. Yet, the results of simulations show that remarkable switches and reswitches in patterns of demand can arise ...
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ژورنال
عنوان ژورنال: American Anthropologist
سال: 1960
ISSN: 0002-7294,1548-1433
DOI: 10.1525/aa.1960.62.6.02a00610