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ethology

(Encyclopedia)ethology, study of animal behavior based on the systematic observation, recording, and analysis of how animals function, with special attention to physiological, ecological, and evolutionary aspects. ...

Jena

(Encyclopedia)Jena yāˈnä [key], city (1994 pop. 100,090), Thuringia, E central Germany, on the Saale River. Manufactures of this industrial center include pharmaceuticals, glass, optical and precision instrument...

Karle, Jerome

(Encyclopedia)Karle, Jerome kärl [key], 1918–2013, American physicist, b. New York City, Ph.D. Univ. of Michigan, 1943. He worked on the Manhattan Project before beginning a career (1946–2009) at the U.S. Nava...

Lassalle, Ferdinand

(Encyclopedia)Lassalle, Ferdinand fĕrˈdēnänt läsälˈ [key], 1825–64, German socialist. The son of a Jewish merchant, he studied at the universities of Breslau and Berlin, where he became a philosophical Heg...

Křenek, Ernst

(Encyclopedia)Křenek, Ernst krĕˈnĕk, Czech kerzhĕˈnĕk [key], 1900–1991, Austrian-American composer, b. Vienna. to Czech parents. He studied in Vienna and Berlin, and in the early 1920s he composed chamber ...

Royal Opera

(Encyclopedia)Royal Opera, one of the principal British opera companies, based at the Royal Opera House (which it shares with the Royal Ballet) in Covent Garden, London. Formed in 1946 as the Covent Garden Opera Co...

Torstensson, Lennart

(Encyclopedia)Torstensson, Lennart lĕnˈnärt tōrˈstənsōn [key], 1603–51, Swedish general in the Thirty Years War. He was one of the generals trained by Gustavus II in the new techniques of war. As commander...

Ribbentrop, Joachim von

(Encyclopedia)Ribbentrop, Joachim von yōˈaäkhĭm fən rĭbˈəntrôp [key], 1893–1946, German foreign minister (1938–45). After World War I he became a wealthy champagne merchant. He joined the National Soci...

Cleland, Max

(Encyclopedia) Cleland, Max, 1942-2021, American politician, b. Atlanta, GA, as Joseph Maxwell Cleland, Stetson Univ. (B.A., 1964), Emory Univ. (M.A., 1968). Cleland enlisted in the Army in 1965 and served in Vie...

geopolitics

(Encyclopedia)geopolitics, method of political analysis, popular in Central Europe during the first half of the 20th cent., that emphasized the role played by geography in international relations. Geopolitical theo...