(Encyclopedia) antisense, DNA or RNA manipulated in a laboratory so that its components (nucleotides) form a complementary copy of normal, or “sense,” messenger RNA (mRNA; see nucleic acid).…
(Encyclopedia) hemorrhagehemorrhagehĕmˈərĭj [key], escape of blood from the circulation (arteries, veins, capillaries) to the internal or external tissues. The term is usually applied to a loss of…
(Encyclopedia) Heng SamrinHeng Samrinhĕng sämˈrĭn [key], 1934–, Cambodian politician. He was president of Cambodia from 1979 to 1991 and headed the Communist party from 1981 to 1991. A regimental…
(Encyclopedia) free radical, in chemistry, a molecule or atom that contains an unpaired electron but is neither positively nor negatively charged. Free radicals are usually highly reactive and…
(Encyclopedia) guilt, in psychology, a term denoting an unpleasant feeling associated with unfulfilled wishes. Sigmund Freud initially contended that sexual drives produce sense of guilt in the…
(Encyclopedia) guide dog, a dog trained to lead a blind person. The first school for training such dogs was established by the German government after World War I for the benefit of blinded veterans…
(Encyclopedia) Novoselov, Sir Konstantin Sergeevich, 1974–, Russian-British physicist, Ph.D. Univ. of Nijmegen, Netherlands, 2004. He has been a research associate at the Univ. of Manchester, England…
(Encyclopedia) O'Neal, Shaquille (Shaquille Rashaun O'Neal)O'Neal, Shaquilleshəkēlˈ rəshônˈ ōnēlˈ [key], 1972–, American basketball player, b. Newark, N.J. Joining the Orlando Magic of the National…
