Researches is health of Pirarucu, Arapaima gigas: partnership between EMBRAPA-SEBRAE.

Aiming to deepen the scientific knowledge on health aspects of pirarucu, and attempting to improve the fingerlings survival rates a partnership was signed between SEBRAE and EMBRAPA, in collaboration with the UFT

Histomorfologia funcional do intestino do pirarucu, Arapaima gigas (Cuvier, 1829).

Este trabalho avaliou a histomorfologia do intestino de juvenis de pirarucu, visando elucidar a dinâmica de absorção e aproveitamento de nutrientes pela espécie e subsidiar futuras pesquisas abrangendo sua nutrição e saúde.Organizado por: Sílvio Ricardo Maurano; AQUACIÊNCIA 2012

Efeito do probiótico na evolução da inflamação granulomatosa e hematologia de tilápias do Nilo, Oreochromis niloticus.

A atividade probiótica de um suplemento comercial composto de três microorganismos, (3x108 UFC), Saccharomyces cerevisiae (2x108 UFC) e Aspergillus oryzae (4x106 UFC), foi avaliada através da inclusão de níveis do suplemento na dieta alimentar de tilápias do Nilo (Oreochromis niloticus).Organizado por: Sílvio Ricardo Maurano; AQUACIÊNCIA 2012

Incorporação de aditivos na ração de peixes.

Introdução. Rações para organismos aquáticos. Aditivos alimentares. Incorporação dos aditivos na ração. Considerações finais.bitstream/item/121884/1/CNPASA-Cit.pd

Microbiological quality of fresh local fish: coagulase-positive Staphylococci analysis.

The aim of this research was to evaluate and quantify the presence of Staphylococci in fresh local fish at a fish processing plant monitored by the Brazilian Federal Inspection Service (Serviço de Inspeção Federal - SIF) located in the North Region of Brazil

Do Killing-Yano tensors form a Lie Algebra?

Killing-Yano tensors are natural generalizations of Killing vectors. We investigate whether Killing-Yano tensors form a graded Lie algebra with respect to the Schouten-Nijenhuis bracket. We find that this proposition does not hold in general, but that it does hold for constant curvature spacetimes. We also show that Minkowski and (anti)-deSitter spacetimes have the maximal number of Killing-Yano tensors of each rank and that the algebras of these tensors under the SN bracket are relatively simple extensions of the Poincare and (A)dS symmetry algebras.Comment: 17 page

Entropy from AdS(3)/CFT(2)

We parametrize the (2+1)-dimensional AdS space and the BTZ black hole with Fefferman-Graham coordinates starting from the AdS boundary. We consider various boundary metrics: Rindler, static de Sitter and FRW. In each case, we compute the holographic stress-energy tensor of the dual CFT and confirm that it has the correct form, including the effects of the conformal anomaly. We find that the Fefferman-Graham parametrization also spans a second copy of the AdS space, including a second boundary. For the boundary metrics we consider, the Fefferman-Graham coordinates do not cover the whole AdS space. We propose that the length of the line delimiting the excluded region at a given time can be identified with the entropy of the dual CFT on a background determined by the boundary metric. For Rindler and de Sitter backgrounds our proposal reproduces the expected entropy. For a FRW background it produces a generalization of the Cardy formula that takes into account the vacuum energy related to the expansion.Comment: major revision with several clarifications and corrections, 22 page

Band-theoretical prediction of magnetic anisotropy in uranium monochalcogenides

Magnetic anisotropy of uranium monochalcogenides, US, USe and UTe, is studied by means of fully-relativistic spin-polarized band structure calculations within the local spin-density approximation. It is found that the size of the magnetic anisotropy is fairly large (about 10 meV/unit formula), which is comparable with experiment. This strong anisotropy is discussed in view of a pseudo-gap formation, of which crucial ingredients are the exchange splitting of U 5f states and their hybridization with chalcogen p states (f-p hybridization). An anomalous trend in the anisotropy is found in the series (US>>USe<UTe) and interpreted in terms of competition between localization of the U 5f states and the f-p hybridization. It is the spin-orbit interaction on the chalcogen p states that plays an essential role in enlarging the strength of the f-p hybridization in UTe, leading to an anomalous systematic trend in the magnetic anisotropy.Comment: 4 pages, 5 figure

Manejo sanitário para criopreservação de sêmen de reprodutores de peixes nativos.

Introdução. Seleção de reprodutores. Manejo sanitário de peixes. Guia passo a passo dos procedimentos. Considerações finais. Referências.bitstream/item/134843/1/CNPASA-2015-doc16.pd