stabilizing
81Negative selection (natural selection) — For other uses, see Negative selection (disambiguation). In natural selection, negative selection[1] or purifying selection is the selective removal of alleles that are deleterious. This can result in stabilizing selection through the purging of… …
82Renewable energy commercialization — The wind, Sun, and biomass are three renewable energy sources …
83Jordi Galí — Infobox Scientist name = Jordi Galí caption = birth date = Birth date and age|1961|1|4 birth place = Barcelona, Spain death date = death place = residence = nationality = Spaniard field = Economics work institution = Universitat Pompeu Fabra 2001 …
84Sodium channel blocker — Sodium channel blockers are agents used in the treatment of cardiac arrhythmia. They are classified as Type I in the Vaughan Williams classification.Antiarrhythmic The class I antiarrhythmic agents interfere with the (Na+) channel.Class I agents… …
85airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …
86priesthood — /preest hood/, n. 1. the condition or office of a priest. 2. priests collectively. [bef. 900; ME presthed(e), presthod(e), OE preosthad. See PRIEST, HOOD] * * * Office of a spiritual leader expert in the ceremonies of worship and the performance… …
87Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …
88mental disorder — Any illness with a psychological origin, manifested either in symptoms of emotional distress or in abnormal behaviour. Most mental disorders can be broadly classified as either psychoses or neuroses (see neurosis; psychosis). Psychoses (e.g.,… …
89Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …
90Population Trends — ▪ 1999 Introduction Demography At midyear 1998, world population stood at 5,926,000,000, according to estimates prepared by the Population Reference Bureau. This total represented an increase of 84 million over the previous year, firmly… …
