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Browsing Artigos by Title

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  • Velásquez, Rober (Superlattices and Microstructures, 2006-02-17)
    In this work we describe a magnetotunneling spectroscopy technique for probing the localization degree of two-dimensional states and mapping the subbands in the active region of a resonant-tunneling semiconductor ...
  • Carvalho, Sylvestre Aureliano; Silva, Stella Olivia da; Charret, Iraziet da Cunha (Theory in Biosciences, 2018-04)
    Dengue is, in terms of death and economic cost, one of the most important infectious diseases in the world. So, its mathematical modeling can be a valuable tool to help us to understand the dynamics of the disease and to ...
  • Oliveira-Neto, N. M.; Souza, J. de; Ribeiro-Silva, C. I. (The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics, 2006-06-30)
    We propose a method, based on a generalized Heisenberg algebra (GHA), to reproduce the anharmonic spectrum of diatomic molecules. The theoretical spectrum generated by GHA allows us to fit the experimental data and to ...
  • Rodrigues, Nathann T; Oliveira, Tiago J (Journal of Physics A: Mathematical and Theoretical, 2014)
    We study a generalized interacting self-avoiding walk (ISAW) model with nearest- and next nearest-neighbor (NN and NNN) interactions on square and cubic lattices. In both dimensions, the phase diagrams show coil and globule ...
  • Mata, Angélica S.; Ferreira, Silvio C. (Physical Review E, 2015-01-22)
    The epidemic threshold of the susceptible-infected-susceptible (SIS) dynamics on random networks having a power law degree distribution with exponent γ > 3 has been investigated using different mean-field approaches, which ...
  • Paiva, Leticia R.; Binny, Christopher; Ferreira Jr., Silvio C.; Martins, Marcelo L. (Cancer Research, 2009-01-27)
    One of the most promising strategies to treat cancer is attacking it with viruses. Oncolytic viruses can kill tumor cells specifically or induce anticancer immune response. A multiscale model for virotherapy of cancer is ...
  • Souza, D. R. de; Martins, M. L.; Carmo, F. M. S. (Biological Invasions, 2009-09-18)
    In the present paper, we propose and study by numerical simulations a multiscale model for plant invasion based on allelopathic suppression in a homogeneous environment. The negative effects on seed production and germination, ...
  • Paiva, Leticia R .; Silva, Hallan S.; Ferreira, Silvio C.; Martins, Marcelo L. (Physical Biology, 2013-03-15)
    Oncolytic virotherapy—the use of viruses that specifically kill tumor cells—is an innovative and highly promising route for treating cancer. However, its therapeutic outcomes are mainly impaired by the host immune response ...
  • Martins, M. L.; Ferreira Jr., S. C.; Vilela, M. J. (Current Opinion in Colloid & Interface Science, 2010-04)
    Life, amazingly rich in diversity of shapes and functions, explores the limits of extreme complexity in nature. In this review we shall discuss in general terms the use of multiscale mathematical and computer models to ...
  • Martins, M. L.; Ferreira Jr., S. C.; Vilela, M. J. (Physics of Life Reviews, 2007-06)
    In the past 30 years we have witnessed an extraordinary progress on the research in the molecular biology of cancer, but its medical treatment, widely based on empirically established protocols, still has many limitations. ...
  • Felix, J. F.; Cunha, D. L. da; Pereira, G. F. C.; Aguiar, J. Albino; Azevedo, W. M. de (Materials Research Bulletin, 2014-01)
    This article presents a chemical bottom-up synthesis of highly crystalline and nanostructured hydrocerussite (Pb3(CO3)2(OH)2) with hexagonal morphology prepared by laser ablation in liquid. The results demonstrate that is ...
  • Oliveira, Tiago J.; Stilck, Jürgen F. (Physical Review E, 2016-01-27)
    We study the interacting self-avoiding trail (ISAT) model on a Bethe lattice of general coordination q and on a Husimi lattice built with squares and coordination q=4. The exact grand-canonical solutions of the model are ...
  • Franco, D. H. T.; Cima, O. M. Del; Piguet, O.; Schweda, M. (Physics Letters B, 2009-09-14)
    In this Letter we call into question the perturbatively parity breakdown at 1-loop for the massless QED3 frequently claimed in the literature. As long as perturbative quantum field theory is concerned, whether a parity ...
  • Del Cima, O. M.; Franco, D. H. T.; Piguet, O. (Journal of High Energy Physics, 2017-11-06)
    The issue intensively claimed in the literature on the generation of a CPT-odd and Lorentz violating Chern-Simons-like term by radiative corrections owing to a CPT violating interaction — the axial coupling of fermions ...
  • Pereira, A. R.; Ercolessi, E.; Pires, A. S. T. (Solid State Communications, 2008-01)
    In this letter we extend the nonlinear σ model describing pure spin ladders with an arbitrary number of legs to the case of ladders containing a single static hole. A simple immediate application of this approach to classical ...
  • Silva, Priscila C. A. da; Rosembach, Tiago V.; Santos, Anésia A.; Rocha, Márcio S.; Martins, Marcelo L. (Plos One, 2014-09-09)
    In multicellular organisms, cell motility is central in all morphogenetic processes, tissue maintenance, wound healing and immune surveillance. Hence, failures in its regulation potentiates numerous diseases. Here, cell ...
  • Apolonio, Felipe A.; Franco, Daniel H. T.; Fagundes, Fábio N. (International Journal of Mathematics and Mathematical Sciences, 2012-04-19)
    By using a particular class of directional wavelets (namely, the conical wavelets, which are wavelets strictly supported in a proper convex cone in the -space of frequencies), in this paper, it is shown that a tempered ...
  • Stariolo, Daniel A.; Arenzon, Jeferson J. (Physical Review E., 1999-05-01)
    We study by means of Monte Carlo simulations the off-equilibrium properties of a model glass, the frustrated Ising lattice gas in three dimensions. We have computed typical two times quantities, such as density-density ...
  • Moura, A. R.; Lopes, R. J. C. (Journal of Magnetism and Magnetic Materials, 2019-02-15)
    We used the Self-Consistent Harmonic Approximation (SCHA) to study the thermodynamics of the precession magnetization in a two-dimensional isotropic ferromagnet. The SCHA treats the Hamiltonian in terms of the canonically ...
  • Carvalho-Santos, V.L.; Apolonio, F.A.; Oliveira-Neto, N.M. (Physics Letters A, 2013-08-01)
    We study the Heisenberg model on cylindrically symmetric curved surfaces. Two kinds of excitations are considered. The first is given by the isotropic regime, yielding the sine-Gordon equation and π solitons are predicted. ...

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