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Distinguished University Professor at the University of Maryland College Park and at Johns Hopkins University Bloomberg School of Public Health
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Eleventh director of the National Science Foundation (NSF) from 1998 to 2004
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2006 National Medal of Science (given by President George W. Bush)
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2006 “Order of the Rising Sun, Gold and Silver Star,” Japan Society for Promotion of Science
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2010 Stockholm Water Prize Laureate
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2016 Malaysian Academy of Science Mahthir Science Award for Scientific Excellence in Work in the Tropical Regions
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2018 Lee Kuan Yew (Singapore) Water Prize