  We report on a resistance anomaly in disordered superconducting films
containing arrays of irregularly distributed nanoscale holes. At high driving
currents, peaks appear in the resistance as a function of temperature, with
peak values up to 2% above the classic normal-state resistance. We attribute
the observed resistance anomaly to dissipation-induced granularity which
enhances the contributions from fluctuation-induced reduction of the density of
states of the quasiparticles. The granular feature of a disordered
superconducting film originates from the inhomogeneous temperature distribution
caused by the variation of the local dissipation and/or heat transfer.
