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・ Tyrone Ezell
・ Tyrone Ferm
・ Tyrone G. Martin
・ Tyrone GAA
・ Tyrone Garland
・ Tyrone Garner
・ Tyrone Generating Station
・ Tyrone Gilks
・ Tyrone Giordano
・ Tyrone Goard
・ Tyrone Gordon
・ Tyrone Grant
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・ Tyrone Guthrie Centre
・ Tyrone Hall
Tyrone Hayes
・ Tyrone Hill
・ Tyrone Holmes
・ Tyrone Hopson
・ Tyrone House
・ Tyrone Howe
・ Tyrone Hughes
・ Tyrone John
・ Tyrone Jones
・ Tyrone Kane
・ Tyrone Keys
・ Tyrone Kirk
・ Tyrone Lamont
・ Tyrone Legette
・ Tyrone Levett


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Tyrone Hayes : ウィキペディア英語版
Tyrone Hayes

Tyrone B. Hayes (born July 29, 1967) is an American biologist and professor of Integrative Biology at University of California, Berkeley known for his research findings concluding that the herbicide atrazine is an endocrine disruptor that demasculinizes and feminizes male frogs. He is also an advocate for critical review and regulation of pesticides and other chemicals that may cause adverse health effects. He has presented hundreds of papers, talks, and seminars on his conclusions that environmental chemical contaminants have played a role in global amphibian declines and in the health disparities that occur in minority and low income populations. His work has been contested by Syngenta, the Swiss manufacturer of atrazine, the United States Environmental Agency and the Australian Pesticides and Veterinary Medicines Authority. It was used as the basis for the settlement of a multimillion-dollar class-action lawsuit against Syngenta.
==Education and career==
Born in Columbia, South Carolina, Hayes spent his childhood studying frogs and lizards and won a state science fair with research that showed anole lizards had to be awake to change color. After graduating from Harvard University, Hayes was a technician and freelance consultant from 1990–1992 for Tiburon, California based Biosystems, Inc.〔(【引用サイトリンク】url=http://www.atrazinelovers.com/t2d.html )〕 Hayes has held an academic appointment (professorship) at the University of California, Berkeley since completing his doctoral research there in 1992;〔 He was hired as a graduate student instructor in 1992, became an assistant professor in 1994, associate professor in 2000, and professor in 2003 in the Department of Integrative Biology, Molecular Toxicology, Group in Endocrinology, Museum of Vertebrate Zoology, Energy and Resources Group, University of California, Berkeley.〔

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