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Pike, Zebulon Montgomery

(Encyclopedia)Pike, Zebulon Montgomery, 1779–1813, American explorer, an army officer, b. Lamberton (now part of Trenton), N.J. He joined the army (c.1793) and was commissioned second lieutenant in 1799. In 1805 ...

blood test

(Encyclopedia)blood test, examination of blood routinely or as an aid in diagnosing a suspected disease. Tests may be performed on whole blood or on the plasma portion only. Blood typing identifies the proteins at ...

Negishi, Ei-ichi

(Encyclopedia)Negishi, Ei-ichi, 1935–2021, Japanese chemist, b. Changchum, China, Univ. of Tokyo (B.Eng., 1958), Univ. of Pennsylvania (Ph.D...

Ma, Yo-Yo

(Encyclopedia)Ma, Yo-Yo mä [key], 1955–, American cellist, b. Paris. The son of musicologist Hiao-Tsun Ma, who left China in the 1930s, he was a musical prodigy, giving a public recital in Paris at the age of si...

Sheen, Fulton John

(Encyclopedia)Sheen, Fulton John, 1895–1979, American Roman Catholic clergyman, b. El Paso, Ill., grad. St. Viator College, Bourbonnais, Ill. (B.A., 1917; M.A., 1919). He studied at the Catholic Univ. of America ...

alanine

(Encyclopedia)CE5 alanine ălˈənēnˌ [key], organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer participates in the biosynthesis of proteins (see stereochemi...

gluten

(Encyclopedia)gluten, mixture of proteins present in the cereal grains. The long molecules of gluten, insoluble in water, are strong and flexible and form many cross linkages. This gives flour its characteristic ch...

distortion

(Encyclopedia)distortion, in electronics, undesired change in an electric signal waveform as it passes from the input to the output of some system or device. In an audio system, distortion results in poor reproduct...

Van, Lake

(Encyclopedia)Van, Lake vän [key], 1,453 sq mi (3,763 sq km), largest lake in Turkey, in E Turkey 65 mi (105 km) SW of Mt. Ararat. Some 75 mi (120 km) long, the lake is alkaline and has no outlet; the city of Van ...

Acrux

(Encyclopedia)Acrux āˈkrəks [key] [from the Bayer designation α Crucis], brightest star in the constellation Crux (Southern Cross); 1992 position R.A. 12h26.2m, Dec. −63°04′. Its apparent magnitude of 0.86...