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Hansen, Lars Peter
(Encyclopedia) Hansen, Lars Peter, 1952–, U.S. economist, b. Champaign, Ill., Ph.D. Univ. of Minnesota, 1978. After teaching at Carnegie-Mellon Univ., Pittsburgh (1978–81), he joined the faculty of…marathon race
(Encyclopedia) marathon race, long-distance foot race deriving its name from Marathon, Greece. According to legend, in 490 b.c., Pheidippides, a runner from Marathon, carried news of victory over the…denial
(Encyclopedia) denial, in psychology, an ego defense mechanism that operates unconsciously to resolve emotional conflict, and to allay anxiety by refusing to perceive the more unpleasant aspects of…American Civil Liberties Union
(Encyclopedia) American Civil Liberties Union (ACLU), nonpartisan organization devoted to the preservation and extension of the basic rights set forth in the U.S. Constitution. Founded (1920) by such…fermium
(Encyclopedia) fermiumfermiumfûrˈmēəm [key] [for Enrico Fermi], artificially produced radioactive chemical element; symbol Fm; at. no. 100; mass no. of most stable isotope 257; m.p. 1,527℃; b.p. and…Von Neumann, John
(Encyclopedia) Von Neumann, JohnVon Neumann, Johnnoiˈmän [key], 1903–57, American mathematician, b. Hungary, Ph.D. Univ. of Budapest, 1926. He came to the United States in 1930 and was naturalized in…Biosphere 2
(Encyclopedia) Biosphere 2, privately funded ecological research project in which eight people lived sealed in a 3.15-acre (1.28-hectare) structure for two years (Sept. 26, 1991–Sept. 26, 1993).…Rusk, Dean
(Encyclopedia) Rusk, Dean (David Dean Rusk), 1909–94, U.S. secretary of state (1961–69), b. Cherokee co., Ga. After teaching (1934–40) and serving in World War II, he entered (1946) the Dept. of…neostigmine
(Encyclopedia) neostigmineneostigminenēˌōstĭgˈmēn, –mĭn [key], drug used to mimic the effects of stimulation of the parasympathetic nervous system. Along with several other drugs that have a similar…concrete
(Encyclopedia) concrete, structural masonry material made by mixing broken stone or gravel with sand, cement, and water and allowing the mixture to harden into a solid mass. The cement is the…Trending
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