35,889 research outputs found
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
O trágico e o moral em Nelson Rodrigues
No full textDissertação (mestrado) - Universidde Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Literatura, Florianópolis, 1998No texto dramatúrgico, escrito para ser encenado, estão contidas, por meio das rubricas do artista dramaturgo, todas as diretrizes para sua concretização cênica, que ficará a cargo dos diretores e atores, artistas da encenação. Devido a esse fato singular que une duas formas artísticas distintas, a relação teatro e literatura apresenta-se íntima e complexa. Ao tentar interpretar o movimento do escritor na obra dramática implica o levantamento da questão do teatro e as singularidades que o diferenciam da literatura enquanto formas estéticas definidas. No conjunto das dezessete peças que compõem a obra dramatúrgica de Nelson Rodrigues, desfilam conflitos humanos intensificados pela profunda caracterização psicológica dos personagens. É inegável em sua obra as marcas do repórter policial, hábil observador social, e do leitor atencioso dos clássicos da dramaturgia moderna. Estas constatações geraram algumas indagações acerca das influências que o autor teria sofrido ao compor um universo ficcional tão intenso de humanidade e emoção. Por isso, rastreando suas Memórias, entrevistas e biografias, bem como os dramaturgos seus precursores, busca-se a compreensão das diretrizes que nortearam sua criação. O teatro de Nelson Rodrigues tem sido classificado pelo próprio autor e pela crítica geral de 'tragédias cariocas'. Por isso, fazem-se algumas incursões aos estudos dos elementos trágicos na obra de arte, da clássica à moderna, a fim de legitimar ao autor o conceito de tragicista. Entendendo que na base dos conflitos explorados pela dramaturgia rodrigueana, encontra-se a questão da sexualidade do indivíduo em confronto com a moral preconizada pela sociedade, busca-se a origem e questiona-se o valor dessa norma moral que, embora instituída para organizar os comportamentos sociais pode, muitas vezes, gerar conflitos abissais para o homem frente ao mundo que o rodeia
Paravelia ornata Rodrigues 2014
No full text<i>Paravelia ornata</i> Rodrigues <i>et al.,</i> 2014 <p> <i>Paravelia ornata</i> Rodrigues, Moreira, Nieser, Chen & Melo in Rodrigues <i>et al.,</i> 2014b: 17-19, figs. 10, 12A-D, 21.</p> <p> <b>Holotype:</b> Macropterous ♂, glued to pinned paper; [Brasil], Tapuruquara, Rio Negro, AM [azonas], 26-27. XI.1962, J. Bechyné col.</p> <p> <b>Paratypes:</b> 3 macropterous ♂, 2 macropterous ♀, glued to pinned paper, a male with abdominal segment VIII and genitalia in microvial; Barcelos AM [azonas], Brasil, 18-22.II.1963, J. Bechyné col.</p> <p> <b>Remarks:</b> In the original description, the authors specified geographical coordinates for the two localities mentioned above.</p>Published as part of <i>Carrenho, Renan, Rodrigues, Higor D. D., Lima, Adriana Carneiro de & Schwertner, Cristiano F., 2020, Type specimens of true bugs (Hemiptera: Heteroptera) housed in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-16 in Papéis Avulsos de Zoologia 60</i> on page 9, DOI: 10.11606/1807-0205/2020.60.17, <a href="http://zenodo.org/record/4614885">http://zenodo.org/record/4614885</a>
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
A marine systematic conservation plan for Rodrigues Island, Western Indian Ocean
No full textIncludes abstract.Includes bibliographical references (p. 53-59).In 2007 the local government of Rodrigues gazetted four marine reserves in the north of the island based on knowledge and insights from stakeholders, mainly from the fishing community. In order to verify the stakeholder-based design, a marine reserve network was designed using Marxan, a systematic conservation planning programme
Measurement of J/ψ production in pp collisions at s√=2.76TeV
No full textThe production of J/ψ mesons is studied with the LHCb detector using data from pp collisions at s√=2.76 TeV corresponding to an integrated luminosity of 71 nb−1. The differential cross-section for inclusive J/ψ production is measured as a function of its transverse momentum p T. The cross-section in the fiducial region 0 < p T < 12 GeV/c and rapidity 2.0 < y <4.5 is measured to be 5.6 ± 0.1 (stat) ± 0.4 (syst) μb, with the assumption of unpolarised J/ψ production. The fraction of J/ψ production from b-hadron decays is measured to be (7.1 ± 0.6 (stat) ± 0.7 (syst))%
Production of J/ψ and Υ mesons in pp collisions at s√=8 TeV
No full textThe production of J/ψ and Υ mesons in pp collisions at s√=8 TeV is studied with the LHCb detector. The J/ψ and Υ mesons are reconstructed in the μ + μ − decay mode and the signal yields are determined with a fit to the μ + μ − invariant mass distributions. The analysis is performed in the rapidity range 2. 0 < y < 4. 5 and transverse momentum range 0 < p T < 14 (15) GeV/c of the J/ψ (Υ) mesons. The J/ψ and Υ production cross-sections and the fraction of J/ψ mesons from b-hadron decays are measured as a function of the meson p T and y
Measurement of the branching fraction
No full textThe B
0
s
→ J/ψK
0
S
branching fraction is measured in a data sample corresponding to 0.41 fb−1
of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to
the penguin contributions affecting the sin 2β measurement from B
0
→ J/ψK
0
S
. The time-integrated
branching fraction is measured to be B(B
0
s
→ J/ψK
0
S
) = (1.83±0.28)×10−5
. This is the most precise
measurement to date
Mosses from the Mascarenes - 7 : a small collection from Rodrigues
No full textFifteen taxa of mosses are reported from the island of Rodrigues. The second African report of Luisierella barbula (Schwaegr.) Steere bridges the Asian and New World disjunctions of this taxon. Three other species are reported new to the Mascarenes, i.e., Calymperes tenerum C.Müller var. tenerum, Fissidens ramulosus Mitten and Weissia edentula Mitten. Three are new to Rodrigues, i.e., Bryum truncorum Bridel, Fissidens sciophyllus Mitten and Vesicularia ayresii (Schimper ex Besch.) Broth
Mapa de reconhecimento da alta intensidade dos solos da Floresta Estadual de Antimari, Estado do Acre.
No full textParte de: RODRIGUES, T. E.; SILVA, J. M. L. da; GAMA, J. R. N. F.; CARDOSO JÚNIOR, E. Q. Caracterização e classificação dos solos da Floresta Estadual do Antimari, Estado do Acre. Belém, PA: Embrapa Amazônia Oriental, 2003. 78 p. il. (Embrapa Amazônia Oriental. Documentos, 152)
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