On the particle spectrum and the conformal window

We study the SU(3) gauge theory with twelve flavours of fermions in the fundamental representation as a prototype of non-Abelian gauge theories inside the conformal window. Guided by the pattern of underlying symmetries, chiral and conformal, we analyze the two-point functions theoretically and on the lattice, and determine the finite size scaling and the infinite volume fermion mass dependence of the would-be hadron masses. We show that the spectrum in the Coulomb phase of the system can be described in the context of a universal scaling analysis and we provide the nonperturbative determination of the fermion mass anomalous dimension gamma*=0.235(46) at the infrared fixed point. We comment on the agreement with the four-loop perturbative prediction for this quantity and we provide a unified description of all existing lattice results for the spectrum of this system, them being in the Coulomb phase or the asymptotically free phase. Our results corroborate the view that the fixed point we are studying is not associated to a physical singularity along the bare coupling line and estimates of physical observables can be attempted on either side of the fixed point. Finally, we observe the restoration of the U(1) axial symmetry in the two-point functions.Comment: 40 pages, 22 figure

One,Two,Zero: Scales of Strong Interactions

We discuss our results on QCD with a number of fundamental fermions ranging from zero to sixteen. These theories exhibit a wide array of fascinating phenomena which have been under close scrutiny, especially in recent years, first and foremost is the approach to conformality. To keep this review focused, we have chosen scale generation, or lack thereof as a guiding theme, however the discussion will be set in the general framework of the analysis of the phases and phase transitions of strong interactions at zero and nonzero temperature.Comment: 15 pages, prepared for IJMPA Special Issue 'Recent Nonperturbative Developments in QCD-like Theories

Chiral symmetry restoration in QCD with many flavours

We discuss the phases of QCD in the parameter space spanned by the number of light flavours and the temperature with respect to the realisation of chiral and conformal symmetries. The intriguing interplay of these symmetries is best studied by means of lattice simulations, and some selected results from our recent work are presented here.Comment: 10 pages, proceedings of the 9th International Workshop on Critical Point and Onset of Deconfinement, 17-21 November, 2014, ZiF, Bielefeld, German

Potencial forrageiro da Brachiaria humidicola cv. Llanero (ex. B. dictyoneura) para a recria de equinos.

bitstream/item/132420/1/COT-56.pdf.pd

Reduction of Jacobi manifolds via Dirac structures theory

We first recall some basic definitions and facts about Jacobi manifolds, generalized Lie bialgebroids, generalized Courant algebroids and Dirac structures. We establish an one-one correspondence between reducible Dirac structures of the generalized Lie bialgebroid of a Jacobi manifold $(M,\Lambda,E)$ for which 1 is an admissible function and Jacobi quotient manifolds of $M$. We study Jacobi reductions from the point of view of Dirac structures theory and we present some examples and applications.Comment: 18 page

Non-hexagonal-ring defects and structures induced by strain in graphene and in functionalized graphene

We perform {\textit ab initio} calculations for the strain-induced formation of non-hexagonal-ring defects in graphene, graphane (planar CH), and graphenol (planar COH). We find that the simplest of such topological defects, the Stone-Wales defect, acts as a seed for strain-induced dissociation and multiplication of topological defects. Through the application of inhomogeneous deformations to graphene, graphane and graphenol with initially small concentrations of pentagonal and heptagonal rings, we obtain several novel stable structures that possess, at the same time, large concentrations of non-hexagonal rings (from fourfold to elevenfold) and small formation energies

Aplicação do algoritmo LEGAL/SPRING na cobertura florestal do município de Ivorá/RS nos anos de 2011 e 2012.

Neste trabalho, foram utilizadas técnicas de sensoriamento remoto a fim de analisar a distribuição dos recursos florestais do Município de Ivorá, RS, enfocando sua evolução, para, com isso, manejar a área do município visando a sustentabilidades de suas atividades. A área de estudo é caracterizada pelos biomas Mata Atlântica e Pampa, característicos do Estado do Rio Grande do Sul, e tem sua economia fortemente baseada na pecuária e agricultura. Para a realização do trabalho, foram utilizados dados temporais do satélite RapidEye, sensor Reis, datados de 2011 e 2012. Foi criado um banco de dados, que foi usado para: testar variadas composições e contrastes; definir as legendas das categorias de uso e cobertura da terra; realizar testes de segmentação, classificação das imagens e elaborar uma programação em Linguagem Espacial para Geoprocessamento Algébrico (LEGAL) (CÂMARA, 1995); e elaborar os mapas temáticos. A classificação supervisionada das imagens revelou que a classe de uso do solo ?Floresta? foi predominante no município em 2011 e 2012, quando representou um quarto da sua área total. Conclui-se que, por meio da análise LEGAL, houve aumento da expansão florestal em detrimento do desmatamento, o que evidencia a importância da análise de uso do solo para a adequação e o planejamento ambiental do município

Avaliacao de gramineas forrageiras para equinos.

bitstream/item/137594/1/PESQ-EM-ANDAMENTO-45.pdfCNPGC

Problemas com cavalos em pastagens de humidicola.

bitstream/item/138777/1/COT-37.pdfCNPGC

Nefrite tubulointersticial e uveíte com granulomas não caseosos na biópsia óssea

Copyright © Ordem dos Médicos 2014The Tubulointerstitial Nephritis and Uveitis syndrome is a very rare condition, probably under-diagnosed in clinical practice. It is characterized by the combination of an interstitial nephritis and uveitis, and is an exclusion diagnosis. Tissue non caseating granuloma can be rarely present, with only 6 cases reported on bone marrow. We present a case of a 55 year old female with a 3-month history of asthenia and weight loss. Blood tests showed anemia and renal insufficiency. Renal biopsy revealed interstitial nephritis and the bone marrow biopsy showed caseating granuloma. One month later anterior uveitis of the left eye appeared. An extensive exclusion of all possible causes allowed a diagnosis of Tubulointerstitial Nephritis and Uveitis syndrome with caseating granuloma in bone marrow. As ocular and renal manifestations may not occur simultaneously, Tubulointerstitial Nephritis and Uveitis Syndrome should be systematically considered in cases of interstitial nephritis and/or uveitis, and tissue granulomas can be part of this rare syndrome.info:eu-repo/semantics/publishedVersio