Statistical mechanics and nonlinear physics are research areas that have developed a multidisciplinary character with many applications. The scientific problems discussed in this volume include biological applications of statistical physics, econophysics and sociologically related problems, chaos and nonlinear dynamics, pattern formation and spatio-temporal complexity, fluids and granular media, q-thermostatistics, stochastic processes, lasers and nonlinear optics, synchronization, wavelets and nonlinear time series analysis.