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Tamayo, Rufino

(Encyclopedia) Tamayo, RufinoTamayo, Rufinor&oomacr;fēˈnō tämäˈyō [key], 1899–1991, Mexican painter, b. Oaxaca. Considered one of the leading Mexican artists of the 20th cent., Tamayo first…

bohrium

(Encyclopedia) bohriumbohriumbôrˈēəm [key], artificially produced radioactive chemical element; symbol Bh; at. no. 107; mass number of most stable isotope 270; m.p., b.p., sp. gr., and valence…

aleatory music

(Encyclopedia) aleatory musicaleatory musicāˈlēətôrˌē [key] [Lat. alea=dice game], music in which elements traditionally determined by the composer are determined either by a process of random…

hassium

(Encyclopedia) hassiumhassiumhăsˈēəm, häsˈ– [key], artificially produced radioactive chemical element; symbol Hs; at. no. 108; mass number of most stable isotope 277; m.p., b.p., sp. gr., and valence…

tennessine

(Encyclopedia) tennessinetennessinetĕnˈəsēn [key], artificially produced radioactive chemical element; symbol Ts; at. no. 117; mass number of most stable isotope 294; m.p., b.p., sp. gr., and valence…

statistical mechanics

(Encyclopedia) statistical mechanics, quantitative study of systems consisting of a large number of interacting elements, such as the atoms or molecules of a solid, liquid, or gas, or the individual…

McClintock, Barbara

(Encyclopedia) McClintock, Barbara, 1902–92, American geneticist. She discovered that certain genetic material, “transposable elements” or “jumping genes” (now called transposons), shifted its…

semiotics

(Encyclopedia) semiotics or semiology, discipline deriving from the American logician C. S. Peirce and the French linguist Ferdinand de Saussure. It has come to mean generally the study of any…

livermorium

(Encyclopedia) livermorium, artificially produced radioactive chemical element; symbol Lv; at. no. 116; mass number of most stable isotope 292; m.p., b.p., sp. gr., and valence unknown. Situated in…

David, Félicien César

(Encyclopedia) David, Félicien CésarDavid, Félicien CésarfālēsyăNˈ sāzärˈ dävēdˈ [key], 1810–76, French composer. His ode-symphony Le Desert (1844) and his opera Lalla-Roukh (1862) contain Eastern…