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An extended Fitzhugh-Nagumo model including linear viscoelasticity is derived in general and studied in
detail in the one-dimensional case. The equations of the theory are numerically integrated in two situations: (i) a free insulated fiber activated by an initial Gaussian distribution of action… |
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An Ermakov-Pinney-like equation associated with the scalar wave equation in curved space-time is here studied. The example of Schwarzschild space-time considered in the present work shows that this equation can be viewed more as a "model equation," with interesting applications in black hole… |
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We present the results of a numerical investigation of three-dimensional homogeneous and isotropic turbulence, stirred by a random forcing with a power-law spectrum, Ef(k)~k3y. Numerical simulations are performed at different resolutions up to 5123. We show that at varying the spectrum slope y,… |
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ZBTB2 is a protein belonging to the BTB/POZ zinc-finger family whose members typically contain a BTB/POZ domain at the N-terminus and several zinc-finger domains at the C-terminus. Studies have been carried out to disclose the role of ZBTB2 in cell proliferation, in human cancers and in regulating… |
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The present paper deals with the following hyperbolic-elliptic coupled system, modelling dynamics of a gas in presence of radiation,
{(-qxx + Rq + G center dot ux = 0,) (ut + f(u)x + Lqx = 0,) x is an element of R, t > 0,
where u is an element of R-n, q is an element of R and R > 0, G, L… |
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In this paper we propose a discrete in continuous mathematical model for the morphogenesis of the posterior lateral line system in zebrafish. Our model follows closely the results obtained in recent biological experiments. We rely on a hybrid description: discrete for the cellular level and… |
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A new technique for nonparametric regression of multichannel signals is presented. The technique is based on the use of the Rational-Dilation Wavelet Transform (RADWT), equipped with a tunable Q-factor able to provide sparse representations of functions with different oscillations persistence. In… |
