6,388 research outputs found
Custo de produção de trigo e de aveia: estimativa safra 2003.
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Avaliação da atividade antibacteriana de filmes finos de quitosana/nanopartículas de próprolis contra staphylococcus aureus.
Get PDFTecnologias de extração florestal mecanizada durável na região tropical úmida: o caso do Estado do Pará.
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Canonical transformation for stiff matter models in quantum cosmology
Full text linkIn the present work we consider Friedmann-Robertson-Walker models in the
presence of a stiff matter perfect fluid and a cosmological constant. We write
the superhamiltonian of these models using the Schutz's variational formalism.
We notice that the resulting superhamiltonians have terms that will lead to
factor ordering ambiguities when they are written as operators. In order to
remove these ambiguities, we introduce appropriate coordinate transformations
and prove that these transformations are canonical using the symplectic method.Comment: Revtex4 Class, 3 pages, No Figure
Uso de tecnologias em lavouras de trigo tecnicamente assistidas no Paraná - safra 2005.
Get PDFbitstream/CNPT-2010/40304/1/p-bp31.pd
Cultivares de trigo Embrapa - comportamento nas unidades demonstrativas de Passo Fundo, safra 1999.
Get PDFbitstream/item/84167/1/CNPT-COM.-TEC.-19-00.pd
Tecnologia para a identificação de clones de seringueira (Hevea spp.) por meio de análise de marcadores microssatélites.
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