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Kuhn, Richard

(Encyclopedia)Kuhn, Richard rĭkhˈärt ko͞on [key], 1900–1967, Austrian chemist, director of the Kaiser Wilhelm Institute, Heidelberg. For his research on the carotinoids (he prepared eight of them in pure form...

Union Theological Seminary in the City of New York

(Encyclopedia)Union Theological Seminary in the City of New York, nondenominational, coeducational Christian seminary; opened 1836, chartered 1839. Originally Presbyterian, Union Theological Seminary has been free ...

mestizo

(Encyclopedia)mestizo māstēˈsō [key] [Span.,=mixture], person of mixed race; particularly, in Mexico and Central and South America, a person of European (Spanish or Portuguese) and indigenous descent. The mesti...

Communist party, in Russia and the Soviet Union

(Encyclopedia)See L. Schapiro, The Communist Party of the Soviet Union (2d ed. 1971); S. F. Cohen, Rethinking the Soviet Experience (1985); M. Geller, Utopia in Power (1986); S. Carter, Russian Nationalism (1990); ...

International Physicians for the Prevention of Nuclear War

(Encyclopedia)International Physicians for the Prevention of Nuclear War (IPPNW), worldwide organization of medical groups dedicated to eliminating nuclear weapons and preventing nuclear war, est. 1980. Based in Ca...

expert system

(Encyclopedia)expert system, a computer system or program that uses artificial intelligence techniques to solve problems that ordinarily require a knowledgeable human. The method used to construct such systems, kno...

SI, abbreviation for the International System of Units

(Encyclopedia)SI: see International System of Units. ...

shellac

(Encyclopedia)shellac, solution of lac in alcohol or acetone. In commerce the name is applied to the resinous substance (lac) itself rather than to the solution. It ranges in color from orange to light yellow depen...

Cooper Union for the Advancement of Science and Art

(Encyclopedia)Cooper Union for the Advancement of Science and Art, accredited institution of higher education; in New York City; coeducational; chartered and opened in 1859. Founded by Peter Cooper, it pioneered in...

Michel, Hartmut

(Encyclopedia)Michel, Hartmut mĭkhˈəl [key], 1948–, German biochemist, Ph.D. Univ. of Würzburg, 1977. Michel was the first person to reduce a photosynthetic action center, which is a four-protein complex, to ...