10,040 research outputs found
Characterization of the regulatory region of bovine mucin 2 (MUC2) gene.
Na publicação: E. O. Melo
Caracterização do sistema produtivo da mangabeira no município de Itaporanga D'Ajuda, Sergipe.
bitstream/CPATC-2010/21506/1/bp-48.pd
Insetos Praga e Benéficos na Cultura do Tungue.
bitstream/CPACT-2010/12917/1/documento-276.pd
Starter culture production in fluidized bed reactor with a flocculent strain ofL. plantarum
A lactic starter culture of a flocculentLactobacillus plantarum was produced in a fluidized bed reactor with higher cell volumetric productivities than in a continuous stirred tank reactor. The fluidized bed reactor was operated at optimised parameters obtained in batch reactor performed with and without pH control
On the quark-gluon vertex and quark-ghost kernel: combining lattice simulations with Dyson-Schwinger equations
We investigate the dressed quark-gluon vertex combining two established nonperturbative approaches to QCD: the Dyson-Schwinger equation (DSE) for the quark propagator and lattice-regularized simulations for the quark, gluon and ghost propagators. The vertex is modeled using a generalized Ball-Chiu ansatz parameterized by a single form
actor X̃_0 which effectively represents the quark-ghost scattering kernel. The solution space
of the DSE inversion for X̃_0 is highly degenerate, which can be dealt with by a numerical regularization scheme. We consider two possibilities: (i) linear regularization and (ii) the Maximum Entropy Method. These two numerical approaches yield compatible X̃_0 functions for the range of momenta where lattice data is available and feature a strong enhancement of the generalized Ball-Chiu vertex for momenta below 1 GeV. Our ansatz for the quark-gluon vertex is then used to solve the quark Dyson-Schwinger equation which yields a mass function in good agreement with lattice simulations and thus provides adequate dynamical chiral symmetry breaking
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