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Dickey, James

(Encyclopedia)Dickey, James, 1923–97, American poet and novelist, b. Atlanta. After serving in the air force during World War II, he attended Vanderbilt Univ., graduating in 1946. He was an English teacher and an...

Conant, James Bryant

(Encyclopedia)Conant, James Bryant kōˈnənt [key], 1893–1978, American educator, chemist, and diplomat, b. Dorchester, Mass., grad. Harvard (B.A., 1913; Ph.D., 1916). Except for a brief period in the army (1917...

Cowen, Brian

(Encyclopedia)Cowen, Brian, 1960– Irish political leader, prime minister of the Repubic of Ireland (2008–11). A lawyer from a family long involved in Fianna Fáil politics, he was first elected to the Irish par...

Feringa, Bernard Lucas

(Encyclopedia)Feringa, Bernard Lucas, 1951–, Dutch organic chemist, Ph.D. Univ. of Groningen, Netherlands, 1978. He has been on the faculty at the Univ. of Groningen since 1984. Feringa was jointly awarded the 20...

Helmholtz, Hermann Ludwig Ferdinand von

(Encyclopedia)Helmholtz, Hermann Ludwig Ferdinand von hĕrˈmän lo͞otˈvĭkh fĕrˈdēnänt fən hĕlmˈhôlts [key], 1821–94, German scientist. Although known especially as a physicist and biologist, he was al...

Hamad bin Khalifa al-Thani

(Encyclopedia)Hamad bin Khalifa al-Thani, 1952–, emir of Qatar (1995–2013). The son of Emir Khalifa bin Hamad al-Thani, Hamad is credited with having turned a country of desert nomads into a modern, industriali...

Mingus, Charles

(Encyclopedia)Mingus, Charles mĭngˈgəs [key], 1922–79, American jazz musician, b. Nogales, Ariz. Mingus was a bassist, pianist, bandleader, composer, and vocalist. He was one of the most important jazz compose...

molecular orbital theory

(Encyclopedia)molecular orbital theory, detailed explanation of how electrons are distributed in stable molecules. In the simpler valence theory of the chemical bond, each atom in a molecule is assumed to retain it...

myosin

(Encyclopedia)myosin mīˈəsĭn [key], one of the two major protein constituents responsible for contraction of muscle. In muscle cells myosin is arranged in long filaments called thick filaments that lie parallel...

luminosity

(Encyclopedia)luminosity, in astronomy, the rate at which energy of all types is radiated by an object in all directions. A star's luminosity depends on its size and its temperature, varying as the square of the ra...