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Browsing Artigos by Title

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  • Dias, Rafael F.; Costa, Cleidineia C. da; Manhabosco, Taise M.; Oliveira, Alan B. de; Matos, Matheus J. S.; Soares, Jaqueline S.; Batista, Ronaldo J. C. (Chemical Physics Letters, 2019-01-16)
    We employed PBE and BLYP semi-local functionals and the van der Waals density functional of Dion et al. (2004) (vdW-DF) to investigate structural properties of liquid acetonitrile and methanol. Among those functionals the ...
  • Ferreira Jr., S. C. (Physical Review E, 2004-09-29)
    In this work, the contact process (CP) is modified in order to model a contact replication process (CRP) for monoclonal reproduction. The occupation rates of an empty site depend on the nearest-neighbor and next- ...
  • Silva, Diogo H.; Ferreira, Silvio C. (Chaos: An Interdisciplinary Journal of Nonlinear Science, 2018)
    We investigate a fermionic susceptible-infected-susceptible model with the mobility of infected individuals on uncorrelated scale-free networks with power-law degree distributions P(k)∼k−γP(k)∼k−γ of exponents 2<γ<32<γ<3. ...
  • Mello, S. L. A.; Codeço, C. F. S.; Magnani, B. F.; Sant’Anna, M. M. (Review of Scientific Instruments, 2016-06-20)
    We increase the versatility of a tandem electrostatic accelerator by implementing simple modifications to the standard operation procedure. While keeping its ability to deliver MeV ion beams, we show that the experimental ...
  • Redinz, José Arnaldo (Physical Review E, 1999-09-01)
    We use an exact recursion procedure to verify analytically, without any intermediary numerical calculation, the validity of the hyperscaling (Josephson) law extended to fractals, the Rushbrooke and Griffiths scaling laws ...
  • Menezes-Sobrinho, I. L.; Couto, M. S.; Ribeiro, I. R. B. (Physical Review E, 2005-06-22)
    We have experimentally investigated the fracture process in paper samples submitted to a uniaxial force. Five types of paper sheets (newsprint, towel, sulfite, silk, and couche papers) were fractured along two orthogonal ...
  • Podestá, Tatiane Souza Vilela; Rosembach, Tiago Venzel; Santos, Anésia Aparecida dos; Martins, Marcelo Lobato (Plos One, 2017-07-10)
    In multicellular organisms, cell motility is central in all morphogenetic processes, tissue maintenance, wound healing and immune surveillance. Hence, the control of cell motion is a major demand in the creation of artificial ...
  • Ferreira, Sukarno O.; Zamiri, Marziyeh; Anwar, Farhana; Klein, Brianna A.; Rasoulof, Amin; Dawson, Noel M.; Schuler-Sandy, Ted; Deneke, Christoph F.; Cavallo, Francesca; Krishna, Sanjay (Proceedings of the National Academy of Sciences of the United States of America, 2016-11-15)
    Antimonide compounds are fabricated in membrane form to enable materials combinations that cannot be obtained by direct growth and to support strain fields that are not possible in the bulk. InAs/(InAs,Ga)Sb type II ...
  • Carrasco, I.S.S.; Bastos, F.M.; Munford, M.L.; Ramos, E.B.; Rocha, M.S. (Materials Science and Engineering: C, 2011-09-21)
    In the present work, we show that oxidized silicon may be successfully used to image multivalent cation-induced DNA condensates under the Atomic Force Microscope (AFM). The images thus obtained are good enough, allowing ...
  • Valadares, M.; Calado, H. D. R.; Araujo, K. A. S.; Guimarães, P. S. S.; Cury, L. A.; Akcelrud, L.; Sanvitto, D.; Giorgi, M. de (Organic Electronics, 2012-12)
    Optical properties of poly(n-vinylcarbazole) (PVK) thin films are revisited. Steady-state emission spectra put in evidence a strong red band whose intensity increases with decreasing temperature when the solid state PVK ...
  • Morales, Ivan; Neves, Bruno; Oporto, Zui; Piguet, Olivier (Symmetry, 2018)
    We revisit the classical theory of a relativistic massless charged point particle with spin and interacting with an external electromagnetic field. In particular, we give a proper definition of its kinetic energy and its ...
  • Fonseca, Jakson M.; Moura-Melo, Winder A.; Pereira, Afranio R.; Carvalho-Santos, Vagson L. (The European Physical Journal B, 2016-06)
    An effective Hamiltonian describing the surface states of a toroidal topological insulator is obtained, and it is shown to support both bound-states and charged zero-modes. Actually, the spin connection induced by the ...
  • Publio, B.C.; Moura, T.A.; Lima, C.H.M.; Rocha, M.S. (International Journal of Biological Macromolecules, 2018-02-26)
    We have performed a biophysical characterization, at single molecule level, of the interaction between the DNA molecule and the biogenic polyamine putrescine. By using force spectroscopy, we were able to monitor the complexes ...
  • Fumiã, Herman F.; Martins, Marcelo L. (Plos One, 2013-07-26)
    A Boolean dynamical system integrating the main signaling pathways involved in cancer is constructed based on the currently known protein-protein interaction network. This system exhibits stationary protein activation ...
  • Oliveira, L.; Caquito Jr., J. M.; Rocha, M. S. (Biophysical Chemistry, 2018-10)
    Here we report a new study performed at single molecule level on the interaction of the antineoplastic drug Carboplatin and the DNA molecule - the main target of the drug inside cells in cancer chemotherapies. By using ...
  • Martins, M. L.; Ceotto, G.; Alves, S. G.; Bufon, C. C. B.; Silva, J. M.; Laranjeira, F. F. (Physical Review E., 2000-06-14)
    A cellular automata model is proposed to analyze the progress of citrus variegated chlorosis epidemics in São Paulo orange plantations. In this model epidemiological and environmental features, such as motility of sharpshooter ...
  • Morales, Ivan; Neves, Bruno; Oporto, Zui; Piguet, Olivier (The European Physical Journal C, 2017-02)
    Five-dimensional Chern–Simons theory with (anti-)de Sitter SO(1,5) or SO(2,4) gauge invariance presents an alternative to general relativity with cosmological constant. We consider the zero modes of its Kaluza–Klein ...
  • Rodrigues, Nathann T.; Oliveira, Tiago J. (Physical Review E, 2017-12)
    We present results from extensive Monte Carlo simulations of polymer models where each lattice site can be visited by up to K monomers and no restriction is imposed on the number of bonds on each lattice edge. These multiple ...
  • Ferreira, Silvio C.; Sander, Renan S.; Pastor-Satorras, Romualdo (Physical Review E., 2016-03-14)
    We consider a general criterion to discern the nature of the threshold in epidemic models on scale-free (SF) networks. Comparing the epidemic lifespan of the nodes with largest degrees with the infection time between them, ...
  • Oliveira, Marcelo M. de; Alves, S. G.; Ferreira, S. C.; Dickman, Ronald (Physical Review E, 2008-09-29)
    We study the continuous absorbing-state phase transition in the contact process on the Voronoi-Delaunay lattice. The Voronoi construction is a natural way to introduce quenched coordination disorder in lattice models. We ...

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