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  • 1
    Electronic Resource
    Electronic Resource
    Local multifractal thermodynamics of 3D turbulence (2000)
    Springer
    The European physical journal 18 (2000), S. 95-101 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 05.45.-a Nonlinear dynamics and nonlinear dynamical systems - 47.27.Ak Fundamentals - 47.27.Gs Isotropic turbulence; homogeneous turbulence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Using results of a direct numerical simulation (DNS) of 3D turbulence we show that the observed generalized scaling (i.e. scaling moments versus moments of different orders) is consistent with a lognormal-like distribution of turbulent energy dissipation fluctuations with moderate amplitudes for all space scales available in this DNS (beginning from the molecular viscosity scale up to largest ones). Local multifractal thermodynamics has been developed to interpret the data obtained using the generalized scaling, and a new interval of space scales with inverse cascade of generalized energy has been found between dissipative and inertial intervals of scales for sufficiently large values of the Reynolds number.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510070082
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  • 2
    Electronic Resource
    Electronic Resource
    Self-averaging in complex brain neuron signals (2002)
    Springer
    The European physical journal 30 (2002), S. 581-585 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 87.19.La Neuroscience – 87.18.Sn Neural networks – 87.17.-d Cellular structure and processes – 87.10.+e General theory and mathematical aspects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Nonlinear statistical properties of Ventral Tegmental Area (VTA) of limbic brain are studied in vivo. VTA plays key role in generation of pleasure and in development of psychological drug addiction. It is shown that spiking time-series of the VTA dopaminergic neurons exhibit long-range correlations with self-averaging behavior. This specific VTA phenomenon has no relation to VTA rewarding function. Last result reveals complex role of VTA in limbic brain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e2002-00417-1
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Probabilistic properties of neuron spiking time-series obtained in vivo (2001)
    Springer
    The European physical journal 24 (2001), S. 409-413 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 87.19.La Neuroscience – 87.18.Sn Neural networks – 87.17.-d Cellular structure and processes – 87.10.+e General theory and mathematical aspects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Probabilistic properties of spiking time-series obtained in vivo from singular neurons belonging to Red Nucleus of brain are analyzed for two groups of rats: genetically defined rat model of depression (Flinders Sensitive Rat Line - FSL) and a control (healthy) group. The FSL group shows a distribution of interspike intervals with a much longer tail than that found for normal rats. The former distribution (for the FSL group) indicates a power-law with exponent α = - 1±0.1. A simple thermodynamic (noise) model is elaborated to explain obtained results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s10051-001-8691-4
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    Paper (German National Licenses)
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