  We theoretically study the effect of stripe-like superconducting inclusions
on the non-linear resistivity in single crystals. Even when the stripe
orientation varies throughout the sample between two orthogonal directions due
to twinning, we predict that there should be a universal scaling relationship
between the nonlinear resistivity curves measured at different angles relative
to the crystal axes. This prediction can be used to verify or rule out the
existence of superconducting stripes at and above the superconducting
transition temperature in cuprate superconductors.
