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Lorde, Audrey Geraldine

(Encyclopedia)Lorde, Audre, 1934–1992, African-American poet, essayist, and civil rights activist, b. New York City, grad. Columbia (M.L.S. 1961). Lorde was born to...

liposome

(Encyclopedia)liposome līˈpəsōmˌ, lĭpˈə– [key], microscopic, fluid-filled pouch whose walls are made of layers of phospholipids identical to the phospholipids that make up cell membranes. Liposomes are us...

biotechnology

(Encyclopedia)biotechnology, the use of biological processes, as through the exploitation and manipulation of living organisms or biological systems, in the development or manufacture of a product or in the technol...

castration

(Encyclopedia)castration, removal of the sex glands of an animal, i.e., testes in the male, or ovaries and often the uterus in the female. Castration of the female animal is commonly referred to as spaying. Castrat...

Frederick III, emperor of Germany and king of Prussia

(Encyclopedia)Frederick III, 1831–88, emperor of Germany and king of Prussia (Mar.–June, 1888), son and successor of William I. In 1858 he married Victoria, the princess royal of England, who exerted considerab...

Weaver, Warren

(Encyclopedia)Weaver, Warren, 1894–1978, American scientist, b. Reedsburg, Wis., grad. Univ. of Wisconsin. He taught mathematics at Wisconsin (1920–32), was director of the division of natural sciences at the R...

Cohen, Stanley

(Encyclopedia)Cohen, Stanley, 1922–2020, American biochemist, b. New York City, Ph.D. Univ. of Michigan, 1948. Cohen did his most important work at Washington Univ. with Rita Levi-Montalcini in the 1950s. Studyin...

Sancar, Aziz

(Encyclopedia)Sancar, Aziz, 1946–, Turkish-American biochemist and molecular biologist, M.D. Istanbul Univ., 1969, Ph.D. Univ. of Texas at Dallas, 1977. From 1977to 1982, Sancar was a researcher at the Yale Schoo...

vitiligo

(Encyclopedia)vitiligo, condition that causes irregular patches of skin to lose pigment and turn white. The exact cause is unknown, but it occurs when the immune system attacks and destroys melanocytes, the cells t...

Thomas, Lewis

(Encyclopedia)Thomas, Lewis, 1913–93, American physician and biologist, b. Flushing, New York. In his youth he often accompanied his physician father on his rounds and decided early on to be a doctor or a writer....