steady-state poisoning
21Environmental radioactivity — is produced by radioactive materials in the human environment. While some radioisotopes, such as strontium 90 (90Sr) and technetium 99 (99Tc), are only found on Earth as a result of human activity, and some, like potassium 40 (40K), are only… …
22Xenon-135 — 135Xe is an isotope of xenon, and a fission product (yield 6.3333%) which is the most powerful known neutron absorbing nuclear poison and has a significant effect on nuclear reactor operation.Xe 135 effects on restartThe inability of a reactor to …
23therapeutics — /ther euh pyooh tiks/, n. (used with a sing. v.) the branch of medicine concerned with the remedial treatment of disease. [1665 75; see THERAPEUTIC, ICS] * * * Treatment and care to combat disease or alleviate pain or injury. Its tools include… …
24Criticism of the Israeli government — State of Israel …
25Agriculture and Food Supplies — ▪ 2007 Introduction Bird flu reached Europe and Africa, and concerns over BSE continued to disrupt trade in beef. An international vault for seeds was under construction on an Arctic island. Stocks of important food fish species were reported… …
26Decline of the Roman Empire — This article is about the historiography of the decline of the Roman Empire. For a description of events, see Roman Empire. For the book by Edward Gibbon, see The History of the Decline and Fall of the Roman Empire. For the film, see The Fall of… …
27Ukraine — /yooh krayn , kruyn , yooh krayn/, n. a republic in SE Europe: rich agricultural and industrial region. 50,684,635; 223,090 sq. mi. (603,700 sq. km). Cap.: Kiev. Russian, Ukraina. Formerly, Ukrainian Soviet Socialist Republic. * * * Ukraine… …
28New Zealand national rugby union team — For the rugby league team, see New Zealand national rugby league team. For the rugby union sevens team, see New Zealand national rugby union team (sevens). For the women s team, see New Zealand women s national rugby union team. For the… …
29environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …
30Alexander Litvinenko — Александр Литвиненко Allegiance Soviet Union …
