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Lewis, Edward B.

(Encyclopedia)Lewis, Edward B., 1918–2004, American geneticist, b. Wilkes-Barre, Pa., grad. California Institute of Technology (Ph.D. 1942). After serving as a meteorologist with the U.S. Army Air Corps during Wo...

l-dopa

(Encyclopedia)l-dopa ĕl-dōˈpə [key], drug used to alleviate some of the symptoms of Parkinson's disease, particularly trembling, rigidity, and slow movements; the drug is also called levodopa. Parkinson's disea...

Samuelsson, Bengt Ingemar

(Encyclopedia)Samuelsson, Bengt Ingemar, 1934–, Swedish biochemist, grad. Karolinska Institute (Ph.D. 1960, M.D. 1961). He was a professor at the Karolinska Institute from 1962 to 1966 and again from 1973; from 1...

Marin, John

(Encyclopedia)Marin, John mărˈĭn [key], 1870–1953, American landscape painter, b. Rutherford, N.J. After a year at Stevens Institute of Technology, he worked for four years as an architectural draftsman. At 28...

rifampin

(Encyclopedia)rifampin rĭfămˈpĭn [key], antibiotic used in the treatment of tuberculosis. It is also used to eliminate the meningococcus microorganism from carriers and to treat leprosy, or Hansen's disease. Ri...

Crofton, Sir John Wenman

(Encyclopedia)Crofton, Sir John Wenman, 1912–2009, British physician, b. Dublin. He served in the British medical corps during World War II and during 1946–52 was part of a research team studying the effects of...

Cirque du Soleil

(Encyclopedia)Cirque du Soleil, [Fr.,=circus of the sun], innovative Canadian circus, est. 1984, with headquarters in Montreal. The best-known exemplar of cirque nouveau, Cirque du Soleil is a mixture of spectacle,...

amenorrhea

(Encyclopedia)amenorrhea āmĕnˌərēˈa, əmĕnˌ– [key], cessation of menstruation. Primary amenorrhea is a delay in or a failure to start menstruation; secondary amenorrhea is an unexpected stop to the menstr...

op art

(Encyclopedia)op art ŏp [key], movement that became prominent in the United States and Europe in the mid-1960s. Deriving from abstract expressionism, op art includes paintings concerned with surface kinetics. Colo...

Hoffmann, Roald

(Encyclopedia)Hoffmann, Roald, 1937–, American chemist, b. Złoczów, Poland (now Zolochiv, Ukraine), Ph.D. Harvard, 1962. After receiving his degree and working with Robert Woodward at Harvard (1962–65), he be...