Similar Search Results

Role of the driving frequency in a randomly perturbed Hodgkin-Huxley neuron with suprathreshold forcing

Pankratova, E. V.; Belykh, V. N.; Mosekilde, E. - In: The European Physical Journal B - Condensed Matter and … 53 (2006) 4, pp. 529-536

-Huxley system in the realm of suprathreshold amplitudes. Our results show that, in the presence of noise, the choice of driving … frequency can seriously affect the precision of the external information transmission. At the same level of noise the precision … can either decrease or increase depending on the driving frequency. We demonstrate that the destructive influence of noise …

Persistent link: https://www.econbiz.de/10009280465

A nonextensive approach to the dynamics of financial observables

Queirós, S. M.D.; Moyano, L. G.; Souza, J. de; Tsallis, C. - In: The European Physical Journal B - Condensed Matter and … 55 (2007) 2, pp. 161-167

We present results about financial market observables, specifically returns and traded volumes. They are obtained within the current nonextensive statistical mechanical framework based on the entropy <InlineEquation ID="Equ1"> <EquationSource Format="TEX">$S_{q}=k\frac{1-\sum_{i=1}^{W} p_{i} ^{q}}{1-q}\, (q\in \Re) \left(S_{1} \equiv...</equationsource></inlineequation>

Persistent link: https://www.econbiz.de/10009280525

On the structure of competitive societies

Ben-Naim, E.; Vazquez, F.; Redner, S. - In: The European Physical Journal B - Condensed Matter and … 49 (2006) 4, pp. 531-538

We model the dynamics of social structure by a simple interacting particle system. The social standing of an individual agent is represented by an integer-valued fitness that changes via two offsetting processes. When two agents interact one advances: the fitter with probability p and the less...

Persistent link: https://www.econbiz.de/10009280539

Gravitational structure formation, the cosmological problem and statistical physics

Pietronero, L.; Labini, F. Sylos - In: The European Physical Journal B - Condensed Matter and … 50 (2006) 1, pp. 285-289

Models of structure formation in the universe postulate that matter distributions observed today in galaxy catalogs arise, through a complex non-linear dynamics, by gravitational evolution from a very uniform initial state. Dark matter plays the central role of providing the primordial density...

Persistent link: https://www.econbiz.de/10009280580

Dynamics of a FitzHugh-Nagumo system subjected to autocorrelated noise

Valenti, D.; Augello, G.; Spagnolo, B. - In: The European Physical Journal B - Condensed Matter and … 65 (2008) 3, pp. 443-451

Persistent link: https://www.econbiz.de/10009280587

Stochastic resonance on paced genetic regulatory small-world networks: effects of asymmetric potentials

Perc, M. - In: The European Physical Journal B - Condensed Matter and … 69 (2009) 1, pp. 147-153

Persistent link: https://www.econbiz.de/10009280639

Modelling disorder: the cases of wetting and DNA denaturation

Ares, S.; Sánchez, A. - In: The European Physical Journal B - Condensed Matter and … 56 (2007) 3, pp. 253-258

We study the effect of the composition of the genetic sequence on the melting temperature of double stranded DNA, using some simple analytically solvable models proposed in the framework of the wetting problem. We review previous work on disordered versions of these models and solve them when...

Persistent link: https://www.econbiz.de/10009280646

Diffusion in flashing periodic potentials

Spagnolo, B.; Dubkov, A. - In: The European Physical Journal B - Condensed Matter and … 50 (2006) 1, pp. 299-303

-reversible noise is analyzed. The calculation of the effective diffusion coefficient is reduced to the mean first passage time problem … supersymmetric potential modulated by: (i) an external white Gaussian noise and (ii) a Markovian dichotomous noise. For both cases … in the absence of thermal noise. For rectangular potential the diffusion slows down, for all parameters of noise and of …

Persistent link: https://www.econbiz.de/10009280668

Stochastic resonance in finite arrays of bistable elements with local coupling

Morillo, M.; Gómez-Ordóñez, J.; Casado, J. M.; … - In: The European Physical Journal B - Condensed Matter and … 69 (2009) 1, pp. 59-64

Persistent link: https://www.econbiz.de/10009280683

Generalization of barrier crossing rate for coloured non Gaussian noise driven open systems

Sen, M. K.; Bag, B. C. - In: The European Physical Journal B - Condensed Matter and … 68 (2009) 2, pp. 253-259

Persistent link: https://www.econbiz.de/10009280686