Now showing items 55690-55709 of 93493

    • Pey,; Schatten,; Izquierdo, (1993)
      Compaction, a critical event in the early mouse development, constitutes the beginning of trophoblast differentiation. Since compaction is attributed to the increasing in cell adhesion due to the cadherin uvomorulin and ...
    • Kemmerling Weis, Ulrike; Cabrera, G. F.; Campos, E. O.; Inestrosa, Nibaldo C.; Galanti Garrone, Norbel (WILEY-LISS, 2006-02)
      The nervous system of flatworms is quite simple although there is increasing evidence indicating that it is chemically complex. Studies of the nervous system in these animals have only been performed in the larval stage ...
    • Miroshnichenko, Andrey E.; Molina Gálvez, Mario; Kivshar, Yuri S. (2007)
      We study the properties of junctions created by the crossing of N identical branches of linear discrete networks. We reveal that for N > 2 such a junction creates a topological defect and supports two types of spatially ...
    • Stojanovic, M. G.; Krasic, M. Stojanovic; Maluckov, A.; Johansson, M.; Salinas, I. A.; Vicencio, R. A.; Stepic, M. (Amer Physical Soc, 2020)
      We consider a two-dimensional octagonal-diamond network with a fine-tuned diagonal coupling inside the diamond-shaped unit cell. Its linear spectrum exhibits coexistence of two dispersive bands (DBs) and two flat bands ...
    • Belicev, P. P.; Gligoric, G.; Radosavljevic, A.; Maluckov, A.; Stepic, M.; Vicencio Poblete, Rodrigo; Johansson, M. (American Physical Society, 2015)
      The localized mode propagation in binary nonlinear kagome ribbons is investigated with the premise to ensure controlled light propagation through photonic lattice media. Particularity of the linear system characterized by ...
    • Molina Gálvez, Mario (2012)
      We examine localization of light in nonlinear (Kerr) kagome lattices in the shape of narrow strips of varying width. For the narrowest ribbon, the band structure features a flat band leading to linear dynamical trapping ...
    • Molina Gálvez, Mario (ELSEVIER, 2008-10-13)
      We study localized modes on a single Ablowitz-Ladik impurity embedded in the bulk or at the surface of a one-dimensional linear lattice. Exact expressions are obtained for the bound state profile and energy. Dynamical ...
    • Georgiev, Tihomir; Svirin, Mikhail; Jaimovich Pérez, Enrique; Fink, Rainer (Frontiers Media, 2015)
      Nuclear Ca2+ is important for the regulation of several nuclear processes such as gene expression. Localized Ca2+ signals (LCSs) in skeletal muscle fibers of mice have been mainly studied as Ca2+ release events from the ...
    • Clerc Gavilán, Marcel; Falcón Beas, Claudio (ELSEVIER SCIENCE BV, 2005-10-01)
      he existence, stability properties, dynamical evolution and bifurcation diagram of localized patterns and hole solutions in one-dimensional extended systems are studied from the point of view of front interactions. An ...
    • Tlidi, M.; Fernández Oto, C.; Clerc Gavilán, Marcel; Escaff Dixon, Daniel; Kockaert, P. (American Physiological Society, 2015)
      We investigate the formation of a localized plateau beam in the transverse section of a nonlinear optical ring cavity filled with a metamaterial and a nonlocal medium such as a nematic liquid crystal. We show that, far ...
    • Kiwi Tichauer, Miguel; Rössler, Jaime (1974)
      The effects due to localized spin fluctuations (LSF) in dilute superconducting alloys are investigated. Expressions for the critical temperature Tc as function of impurity concentration nI and the specific heat jump at the ...
    • Clerc Gavilán, Marcel; Coulibaly, Saliya; Laroze, David (ELSEVIER, 2010)
      A time-periodic magnetic field applied transversally to the hard axis of an extended easy-plane ferromagnetic sample can produce parametric resonance. For the 2:1 resonance, the prototype orderparameter- equation derived ...
    • Clerc Gavilán, Marcel; Coulibaly, S.; Laroze, David (AMER PHYSICAL SOC, 2008-05)
      We study theoretically a family of localized states which asymptotically connect a uniform oscillatory state in the magnetization of an easy-plane ferromagnetic spin chain when an oscillator magnetic field is applied ...
    • Bortolozzo, U.; Clerc Gavilán, Marcel; Falcón Beas, Claudio; Residori, S.; Rojas, R. (AMERICAN PHYSICAL SOC, 2006-06)
      We present a unifying description close to a spatial bifurcation of localized states, appearing as large amplitude peaks nucleating over a pattern of lower amplitude. Localized states are pinned over a lattice spontaneously ...
    • Ferré, Michel A.; Clerc Gavilán, Marcel; Coulibally, Saliya; Rojas, René G.; Tlidi, Mustapha (Springer, 2017)
      Driven damped coupled oscillators exhibit complex spatiotemporal dynamics. An archetype model is the driven damped sine-Gordon equation, which can describe several physical systems such as coupled pendula, extended Josephson ...
    • Descalzi, Orazio; Gutiérrez, Pablo; Tirapegui Zurbano, Enrique (2005)
      We study numerically a prototype equation which arises generically as an envelope equa- tion for a weakly inverted bifurcation associated to traveling waves: The complex quintic Ginzburg{Landau equation. We show six di ...
    • Escaff, D.; Fernández Oto, C.; Clerc Gavilán, Marcel; Tlidi, M. (American Physical Society, 2015)
      We investigate the formation of localized structures with varying widths in one- and two-dimensional systems. The mechanism of stabilization is attributed to strongly nonlocal coupling mediated by a Lorentzian type ...
    • Mejía Cortés, Cristian; Castillo Barake, Jorge; Molina Gálvez, Mario (Optical Soc Amer, 2020)
      We address the issue of nonlinear modes in a two-dimensional waveguide array, spatially distributed in the Lieb lattice geometry, and modeled by a saturable non-linear Schrodinger equation. In particular, we analyze the ...
    • Clerc Gavilán, Marcel; Coulibaly, S.; Laroze, D. (EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY, 2012-02)
      The pattern formation in a magnetic wire forced by a transversal uniform and oscillatory magnetic field is studied. This system is described in the continuous framework by the Landau-Lifshitz-Gilbert equation. We find ...
    • Ezurmendia Alvarez, Catalina; Juricic Merilln, Ignacio; Miranda Vares, Danilo; Ruiz Sierra, Valentina; Tejos Martignoni, Mariana (Universidad de Chile, 2015-12)
      En el año 1996, tras ser detenido y fichado por la policía de investigaciones, en un allanamiento televisado a la discoteca donde trabajaba como transformista, Rodrigo (18), vuelve a su hogar con el temor de que su madre ...