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cancer, in medicine

(Encyclopedia) cancer, in medicine, common term for neoplasms, or tumors, that are malignant. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth. Unlike…

crossing over

(Encyclopedia) crossing over, process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other. Crossing over occurs in the first division of meiosis. At…

bioethics

(Encyclopedia) bioethics, in philosophy, a branch of ethics concerned with issues surrounding health care and the biological sciences. These issues include the morality of abortion, euthanasia, in…

DK Science: Medical Research

NANOTECHNOLOGY IN MEDICINE BIONICS COMPUTER-AIDED DRUG DESIGN FIND OUT MORE Huge resources are poured each year into studying diseases and finding new treatments. Some of the main focuses…

2010 Pulitzer Prize Winners

Awards ranging from journalism to fiction to music Related Links Joseph Pulitzer Biography Book, Magazine,…

Reynolds, Debbie

(Encyclopedia) Reynolds, Debbie, 1932-2016, American actress, singer, and dancer, b. El Paso, Tx., as Mary Frances Reynolds. Reynolds’ family…

Jacob, François

(Encyclopedia) Jacob, FrançoisJacob, FrançoisfräNswäˈ zhäkôbˈ [key], 1920–2013, French biologist and geneticist, educated at the Sorbonne. His medical studies were interrupted by World War II. He…

Donen, Stanley

(Encyclopedia) Donen, Stanley, 1924–2019, American film director, choreographer, and producer, b. Columbia, S.C. He is best known for directing some of Metro-Goldwyn-Mayer's finest musicals. In 1940…

emphysema

(Encyclopedia) emphysemaemphysemaĕmfĭsēˈmə [key], pathological or physiological enlargement or overdistention of the air sacs of the lungs. A major cause of pulmonary insufficiency in chronic…