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Alexander of Aphrodisias

(Encyclopedia)Alexander of Aphrodisias ăfrōdĭshˈēəs [key], fl. a.d. 200, Greek Peripatetic philosopher. A celebrated ancient commentator on Aristotle, he was often called the Exegete. Among his extant writing...

Schultz, Theodore William

(Encyclopedia)Schultz, Theodore William, 1902–98, American economist; b. Arlington, S.Dak. He taught at Iowa State College (1930–43) and the Univ. of Chicago (1943–67), but remained active at Chicago long aft...

Rydberg, Abraham Viktor

(Encyclopedia)Rydberg, Abraham Viktor äˈbrähäm vĭkˈtôr rüdˈbĕryə [key], 1828–95, Swedish philosopher and writer. Singoalla (1857), a romantic and mystical story of medieval times, was his first major w...

sarcoma

(Encyclopedia)sarcoma särkōˈmə [key], highly malignant tumor arising in connective- and muscle-cell tissue. It is the result of oncogenes (the cancer causing genes of some viruses) and proto-oncogenes (cancer c...

Tufts University

(Encyclopedia)Tufts University, main campus at Medford, Mass.; coeducational; chartered 1852 by Universalists as a college for men. It became a university in 1955. Jackson College, formerly a coordinate undergradua...

Tolman, Edward Chace

(Encyclopedia)Tolman, Edward Chace, 1886–1959, American psychologist, b. West Newton, Mass., grad. Massachusetts Institute of Technology, 1911; Ph. D. Harvard, 1915. He spent most of his academic career at the Un...

static

(Encyclopedia)static, term formerly use to describe electrical noise in radio reception, especially noise that originates outside a transmitter and receiver, e.g., in the atmosphere or in human-made devices. In gen...

Blacher, Boris

(Encyclopedia)Blacher, Boris bläˈkhər [key], 1903–75, Estonian-German composer, b. Yingkou, China. Blacher lived for six years in Siberia. He studied in Berlin and in 1953 became the director of the West Berli...

motivation

(Encyclopedia)motivation, in psychology, the intention of achieving a goal, leading to goal-directed behavior. Some human activity seems to be best explained by postulating an inner directing drive. While a drive i...

interferon

(Encyclopedia)interferon ĭnˌtərfērˈŏn [key], any of a group of proteins produced by cells in the body in response to an attack by a virus. A cell infected by a virus releases minute amounts of interferons, wh...