1,469 research outputs found

    Criação de bezerro leiteiro na Amazônia.

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    bitstream/item/61186/1/CPATU-Doc112.pd

    Desaleitamento precoce e convencional de bezerras de origem leiteira no nordeste paraense.

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    bitstream/item/48943/1/Boletim-PD-21-AMAZ-ORIENTAL.pd

    Nuclear shadowing from exclusive quarkonium photoproduction at the BNL RHIC and CERN LHC

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    The photonuclear production of vector mesons in ultraperipheral heavy ion collisions is investigated within the collinear approach using different parameterizations for the nuclear gluon distribution. The integrated cross section and the rapidity distribution for the AA→VAAAA \to V AA (V=J/Ψ,ΥV = J/\Psi, \Upsilon) process are computed for energies of RHIC and LHC. A comparison with the recent PHENIX data on coherent production of J/ΨJ/\Psi mesons is also presented. We demonstrate that the study of the exclusive quarkonium photoproduction can be used to constrain the nuclear effects in the gluon distribution.Comment: 8 pages, 4 figures, 2 tables. Version to be published in Physical Review

    Intervalo entre partos de vacas leiteiras em pastagem de capim-tobiatã sob níveis de suplementação de concentrado no Nordeste Paraense.

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    bitstream/item/48564/1/Boletim-PD-29-AMAZ-ORIENTAL.pd

    Produção de leite em pastagem de capim-marandu sob dois níveis de concentrado em Terra Alta, PA.

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    bitstream/item/57741/1/Oriental-BPD49.pd
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