997 resultados para b-D-Galactopyranose


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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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We study hadronic annihilation decays of B mesons within the perturbative QCD at collinear approximation. The regulation of endpoint divergences is performed with the help of an infrared finite gluon propagator characterized by a non-perturbative dynamical gluon mass. The divergences at twist-3 are regulated by a dynamical quark mass. Our results fit quite well the existent data of B 0→D s-K + and B 0→ D s-*K + for the expected range of dynamical gluon masses. We also make predictions for the rare decays B 0→K -K +, B s0→π -π +, π 0π 0, B +→D s(*) +K̄ 0, B 0→D s±(*)K ± and B s0 →D±(*) π ±, D 0π 0. © 2010 American Institute of Physics.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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We report measurements of charmed-hadron (D-0, D*) production cross sections at midrapidity in p + p collisions at a center-of-mass energy of 200 GeV by the STAR experiment. Charmed hadrons were reconstructed via the hadronic decays D-0 -> K- pi(+), D*(+) -> D-0 pi(+) -> K-pi(+)pi(+) and their charge conjugates, covering the p(T) range of 0.6-2.0 and 2.0-6.0 GeV/c for D-0 and D*(+), respectively. From this analysis, the charm-pair production cross section at midrapidity is d sigma/dy vertical bar(c (c) over bar)(y-0) = 170+/-45(stat)(-59)(+38()sys) mu b. The extracted charm-pair cross section is compared to perturbative QCD calculations. The transverse momentum differential cross section is found to be consistent with the upper bound of a fixed-order next-to-leading logarithm calculation.

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von dem Verf. des "hōrēb" [d.i. Samson Raphael Hirsch]

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"German Economy, Politics and Culture, 1900-1933. A Research Project of the International Institute of Social Research" (1940):; 1. Umriß des Forschungsprojekts, a) Fassung vom 29.7.1940, Typoskript, 55 Blatt, b)-d) Fassung vom 6.6.1940: b) Typoskript, 55 Blatt, c) Typoskript mit handschriftlichen Korrekturen, 60 Blatt, d) Typoskript, 60 Blatt;

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taʼlīf Jaʻfar al-Astarābādī.

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Contiene: Première partie: Administration des biens / par M. L.D.B.[Le Bègue de Presle]. 1789, XXIV, 541 p. - Seconde partie: Economie domestique / par M. L. B. D. P. [Le Bègue de Presle]. 1789, XXXIIV, 502 p., 2 lám. - Troisième partie, tome 1: Exploitation / par M. l'abbé de Lalauze. 1789, XVI, 488 p., 4 lám. - Troisième partie, tome 2: Exploitation des terres / par M. l'abbé de Lalauze. 1790, 2 h., 528 p., 2 lám. - Troisième partie, tome 3: Economie des champs / par M. l'abbé de Lalauze. 1791, 2 h., 540 p. - Troisième partie, tome 4: Economie des champs / par M. l'abbé de Lalauze..., 1792. 2 h., 390 p., 2 lám.

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"Life of the author": v. 1, p. [xxxix]-xlvi.