Maxwell Equations and Irreversibility
  Two questions connected to the macroscopic Maxwell equations are addressed: First, which form do they assume in the hydrodynamic regime, for low frequencies, strong dissipation and arbitrary field strengths. Second, what does this tell us about irreversibility and coarse-grained description. 
Mario Liu (Institut f\"ur Theoretische Physik, Universit\"at Hannover,   Hannover, Germany, EC)