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Copernicus, Nicholas

(Encyclopedia) Copernicus, NicholasCopernicus, Nicholaskōpûrˈnĭkəs [key], Pol. Mikotaj Kopérnik, 1473–1543, Polish astronomer. After studying astronomy at the Univ. of Kraków, he spent a number of…

Hodgkin's disease

(Encyclopedia) Hodgkin's disease, a type of cancer of the lymphatic system. First identified in 1832 in England by Thomas Hodgkin, it is a type of malignant lymphoma. Incidence peaks in young adults…

Michigan, University of

(Encyclopedia) Michigan, University of, main campus at Ann Arbor; state supported; coeducational; chartered 1817 at Detroit as the Catholepistemiad, or Univ., of Michigania, rechartered 1821 (as Univ…

Kandel, Eric Richard

(Encyclopedia) Kandel, Eric Richard, 1929–, American neurobiologist, b., Vienna, Austria, M.D. New York Univ., 1956. Kandel was at the Harvard Medical School (1960–65) and New York Univ. (1965–74)…

Castor, in astronomy

(Encyclopedia) CastorCastorkăsˈtər [key], bright star in the constellation Gemini; Bayer designation α Geminorum; 1992 position R.A. 7h34.1m, Dec. +31°54′. Slightly dimmer than Pollux, with which it…

vital statistics

(Encyclopedia) vital statistics, primarily records of the number of births and deaths in a population. Other factors, such as number of marriages and causes of death, by age groups, are regularly…

Saskatchewan, river, Canada

(Encyclopedia) Saskatchewan, river, c.340 mi (550 km) long, formed by the confluence of the North Saskatchewan (c.760 mi/1,220 km long) and the South Saskatchewan (c.550 mi/890 km long) rivers near…

semiotics

(Encyclopedia) semiotics or semiology, discipline deriving from the American logician C. S. Peirce and the French linguist Ferdinand de Saussure. It has come to mean generally the study of any…

Ramón y Cajal, Santiago

(Encyclopedia) Ramón y Cajal, SantiagoRamón y Cajal, Santiagosäntyäˈgō rämōnˈ ē kähälˈ [key], 1852–1934, Spanish histologist, widely considered the father of neuroscience. He was a university…