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On non-local representations of the ageing algebra
On non-local representations the ageing algebra
2010/12/24
The ageing algebra is a local dynamical symmetry of many ageing systems, far from equilibrium, and with a dynamical exponent z=2. Here, new representations for an integer dynamical exponent z=n are co...
Experimental evidence of ageing and slow restoration of the weak-contact configuration in tilted 3D granular packings
Granular solids Nonlinear acoustic probing Avalanches
2010/11/19
Granular packings slowly driven towards their instability threshold are studied using a digital imaging technique as well as a nonlinear acoustic method. The former method allows us to study grain rea...
Evolution, Ageing and Speciation: Monte Carlo Simulations of Biological Systems
Monte Carlo Simulations Biological Systems
2010/10/26
We present a complete description of the Penna bit-string model for biological ageing and how it has been modified, along the last 10 years, to simulate and better understand many different evolutiona...