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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...

Maurice, duke and elector of Saxony

(Encyclopedia)Maurice, 1521–53, duke (1541–47) and elector (1547–53) of Saxony. A member of the Albertine branch of the ruling house of Saxony, he became duke of Albertine Saxony during the Protestant Reforma...

mendelevium

(Encyclopedia)mendelevium mĕndəlāvˈēəm [key], artificially produced radioactive chemical element; symbol Md; at. no. 101; mass no. of most stable isotope 258; m.p. 827℃; b.p. and sp. gr. unknown; valence +1...

Constable, John

(Encyclopedia)Constable, John, 1776–1837, English painter, b. Suffolk. Constable and Turner were the leading figures in English landscape painting of the 19th cent. Constable became famous for his landscapes of S...

Dallas, George Mifflin

(Encyclopedia)Dallas, George Mifflin, 1792–1864, American statesman, vice president of the United States (1845–49), b. Philadelphia; son of Alexander James Dallas. He read law, was admitted (1813) to the bar, a...

Ghent, Treaty of

(Encyclopedia)Ghent, Treaty of, 1814, agreement ending the War of 1812 between the United States and Great Britain. It was signed at Ghent, Belgium, on Dec. 24, 1814, and ratified by the U.S. Senate in Feb., 1815. ...

Fourier, Charles

(Encyclopedia)Fourier, Charles shärl fo͞oryāˈ [key], 1772–1837, French social philosopher. From a bourgeois family, he condemned existing institutions and evolved a kind of utopian socialism. In Théorie des ...

americium

(Encyclopedia)americium ămərĭˈshēəm [key], artificially produced radioactive chemical element; symbol Am; at. no. 95; mass no. of most stable isotope 243; m.p. about 1,175℃; b.p. about 2,600℃; sp. gr. 13....

Hanover, house of

(Encyclopedia)Hanover, house of, ruling dynasty of Hanover (see Hanover, province), which was descended from the Guelphs and which in 1714 acceded to the British throne in the person of George I. George was the gra...

Turner, Frederick Jackson

(Encyclopedia)Turner, Frederick Jackson, 1861–1932, American historian, b. Portage, Wis. He taught at the Univ. of Wisconsin from 1885 to 1910 except for a year spent in graduate study at Johns Hopkins. From 1910...
 

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