5,169 research outputs found

    Rinite atrófica dos suínos: alternativas de controle.

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    bitstream/item/59363/1/CUsersPiazzonDocuments3.pd

    On the effective action of the vacuum photon splitting in Lorentz-violating QED

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    We consider one-loop radiative corrections from Lorentz- and CPT- violating extended QED to address the specific problem of finding explicitly an effective action describing amplitude of photon triple splitting. We show that it is not possible to find a nonzero photon triple splitting effective action, at least by using the derivative expansion method (at zero external momenta), up to leading order in the Lorentz- and CPT- violating parameter.Comment: 4 pages, version to appear in EP

    Formulação de um índice (IRA) para aplicação na caracterização e classificação de rebanhos com rinite atrófica.

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    bitstream/item/58773/1/CUsersPiazzonDocuments160.pd

    Perdas economicas decorrentes de diferentes graus de severidade e rinite atrofica em suinos.

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    bitstream/CNPSA/7661/1/cot169.pdf; bitstream/item/58760/1/CUsersPiazzonDocuments169.pd

    Qualidade do leite armazenado em tanques coletivos.

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    Importância da refrigeração do leite ; Tanques coletivos; Pesquisa sobre a qualidade do leite de tanques coletivos; Uma segunda pesquisa: maio de 2007 a junho de 2008.bitstream/item/65295/1/CT-99-Qualid-leite-armaz-tanq-coletivos.pd

    Improving IT infrastructures representation: A UML profile

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    IT infrastructures are most times informally modeled. The resulting models are ambiguous to stakeholders, cannot be checked for validity, and therefore are unable to play their important role in design, deployment and maintenance activities. The main reason for such a poor state-of-the-art lies mainly in the absence of a modeling language capable of representing IT infrastructures at the required level of abstraction. Indeed, existing candidate languages are too abstract, as shown in this paper by reviewing their metamodels. The present paper mitigates this problem by proposing a UML profile to describe the semantics of an IT infrastructure.info:eu-repo/semantics/publishedVersio
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