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antisense

(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). Antisense techniques...

hemorrhage

(Encyclopedia)hemorrhage hĕmˈərĭj [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 blood that is copious e...

Heng Samrin

(Encyclopedia)Heng Samrin hĕng 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 commander of the Khmer ...

free radical

(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 unstable. They are pro...

guilt

(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 superego, the moral c...

Goslar

(Encyclopedia)Goslar gôsˈlär [key], city, Lower Saxony, central Germany, at the northern foot of the Har...

Gneisenau, August, Graf Neithardt von

(Encyclopedia)Gneisenau, August, Graf Neithardt von ouˈgo͝ost gräf nītˈhärt fən gənīˈzənou [key], 1760–1831, Prussian field marshal. In the Napoleonic Wars he fought at Jena (1806) and, as a major, won...

guide dog

(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. Schools now exi...

Novoselov, Sir Konstantin Sergeevich

(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, since 2001. ...

O'Neal, Shaquille

(Encyclopedia)O'Neal, Shaquille (Shaquille Rashaun O'Neal) shəkēlˈ rəshônˈ ōnēlˈ [key], 1972–, American basketball player, b. Newark, N.J. Joining the Orlando Magic of the National Basketball Association...