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Walker, Robert John

(Encyclopedia)Walker, Robert John, 1801–69, American public official, b. Northumberland, Pa. A lawyer, he practiced for a time in Pittsburgh. In 1826 he moved to Natchez, Miss. As a Democratic Senator (1836–45)...

Mendel, Gregor Johann

(Encyclopedia)Mendel, Gregor Johann grāˈgôr yōˈhän mĕnˈdəl [key], 1822–84, Austrian monk noted for his experimental work on heredity. He entered the Augustinian monastery in Brno in 1843, taught at a loc...

civil law

(Encyclopedia)civil law, as used in this article, a modern legal system based upon Roman law, as distinguished from common law. Civil law is based on written legal codes, a hallmark of the Roman legal system, in wh...

marketing

(Encyclopedia)marketing, in economics, that part of the process of production and exchange that is concerned with the flow of goods and services from producer to consumer. In popular usage it is defined as the dist...

thermodynamics

(Encyclopedia)thermodynamics, branch of science concerned with the nature of heat and its conversion to mechanical, electric, and chemical energy. Historically, it grew out of efforts to construct more efficient he...

Arnold, Thomas

(Encyclopedia)Arnold, Thomas, 1795–1842, English educator, b. Isle of Wight, educated at Winchester school and at Corpus Christi College, Oxford. He was a fellow of Oriel College, Oxford, from 1815 to 1819, was o...

Beck, Aaron Tempkin

(Encyclopedia) Beck, Aaron Tempkin, 1921-2021, American psychiatrist, b. Providence, R.I., Brown Univ. (B.A., 1942), Yale Univ. (M.D., 1946). Following earning his me...

Shanxi

(Encyclopedia)Shanxi or Shansi shänˈshēˈ [key], province (2010 pop. 35,712,111), c.60,000 sq mi (155,400 sq km), NE China. The capital is Taiyuan. It is bounded on the west and the south by the Huang He (Yellow...

charter school

(Encyclopedia)charter school, alternative type of American public school that, while paid for by taxes, is independent of the public-school system and relatively free from state and local regulations. A charter sch...

Godunov, Boris

(Encyclopedia)Godunov, Boris bərēsˈ gədo͞onôfˈ [key], c.1551–1605, czar of Russia (1598–1605). A favorite of Ivan IV (Ivan the Terrible), he helped organize Ivan's social and administrative system. After...