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Chalfie, Martin

(Encyclopedia)Chalfie, Martin, 1947–, American biologist, b. Chicago, Ph.D. Harvard, 1977. In 1982 Chalfie joined the faculty at Columbia, where he is now the William R. Kenan, Jr., Professor of Biological Scienc...

Hartwell, Leland Harrison

(Encyclopedia)Hartwell, Leland Harrison, 1939–, American cell biologist, b. Los Angeles, Ph.D. Massachusetts Institute of Technology, 1964. He is a professor at the Univ. of Washington (1968–) and since 1997 ha...

Hoffmann, Jules Alphonse

(Encyclopedia)Hoffmann, Jules Alphonse, 1941–, French biologist, Ph.D. Univ. of Strasbourg, 1969. Hoffmann was a researcher at the French National Center for Scientific Research, Strasbourg, from 1974 to 2009. In...

Sharp, Phillip Allen

(Encyclopedia)Sharp, Phillip Allen, 1944–, American geneticist, b. Falmouth, Ky., Ph.D., Univ. of Illinois, 1969. Sharp joined the faculty at the Massachusetts Institute of Technology in 1974, where he has spent ...

vitiligo

(Encyclopedia)vitiligo, condition that causes irregular patches of skin to lose pigment and turn white. The exact cause is unknown, but it occurs when the immune system attacks and destroys melanocytes, the cells t...

Halsted, William Stewart

(Encyclopedia)Halsted, William Stewart hôlˈstĭd [key], 1852–1922, American surgeon, b. New York City, M.D. College of Physicians and Surgeons, 1877. He practiced in New York and in 1886 became the first profes...

Grace, princess consort of Monaco

(Encyclopedia)Grace, 1929–82, princess consort of Monaco, b. Philadelphia as Grace Patricia Kelly. She acted on stage and television in New York, and made her film debut in 1951. Cool, blonde, and patrician, she ...

Dempsey, Jack

(Encyclopedia)Dempsey, Jack (William Harrison Dempsey), 1895–1983, American boxer, b. Manassa, Colo. Dempsey, called the “Manassa Mauler,” emerged from fights on saloon floors near mining camps to become (191...

angioplasty

(Encyclopedia)angioplasty ănˈjēōplăsˌtē [key], any surgical repair of a blood vessel, especially balloon angioplasty or percutaneous transluminal coronary angioplasty, a treatment of coronary artery disease....

Roberts, Richard John

(Encyclopedia)Roberts, Richard John, 1943–, British biochemist, Ph.D., Univ. of Sheffield, 1968. Roberts joined James D. Watson's Cold Spring Harbor Laboratory in New York in 1972, becoming assistant director for...