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multiplexing

(Encyclopedia)multiplexing, in communication, technique whereby two or more independent messages, or information-bearing signals, are carried by a single common medium, or channel. When multiplexing is performed, t...

Maracaibo, Lake

(Encyclopedia)Maracaibo, Lake, largest lake of South America, c.5,100 sq mi (13,210 sq km), NW Venezuela, extending c.110 mi (180 km) inland. A strait, 34 mi (55 km) long, connects it with the Gulf of Venezuela. Di...

imprinting

(Encyclopedia)imprinting, acquisition of behavior in many animal species, in which, at a critical period early in life, the animals form strong and lasting attachments. Imprinting is important for normal social dev...

Kuroda, Kiyotaka

(Encyclopedia)Kuroda, Kiyotaka, 1840–1900, Japanese political leader. Born into a samurai family in Satsuma, he was active in overthrowing the Tokugawa shogunate and promoting the Meiji restoration. In 1874, as f...

cybernetics

(Encyclopedia)cybernetics [Gr.,=steersman], term coined by American mathematician Norbert Wiener to refer to the general analysis of control systems and communication systems in living organisms and machines. In cy...

Gilman, Alfred Goodman

(Encyclopedia)Gilman, Alfred Goodman, 1941–2015, American biochemist, b. New Haven, Conn., M.D., Ph.D. Case Western Reserve Univ., 1969. He taught at the Univ. of Virginia (1971–1981) before becoming a professo...

mandorla

(Encyclopedia)mandorla mänˈdôrlä [key], [Ital.,=almond], a medieval Christian artistic convention by which an oval or almond-shaped area or series of lines surrounds a deity, most commonly Jesus. The mandorla i...

kiva

(Encyclopedia)kiva kēˈvə [key], large, underground ceremonial chamber, peculiar to the ancient and modern Pueblo. The modern kiva probably evolved from the slab houses (i.e., storage pits and dwellings that were...

Arc de Triomphe de l'Étoile

(Encyclopedia)Arc de Triomphe de l'Étoile ärk də trēôNfˈ də lātwälˈ [key], imposing triumphal arch in Paris standing on an elevation at the end of the Avenue des Champs Élysées and in the center of the ...

Ghazni

(Encyclopedia)Ghazni gŭzˈnē [key], city, capital of Ghazni prov., E central Afghanistan, on the Ghazni R...