  The action for the long wavelength oscillations of a non-BPS p=3 brane
embedded in N=1, D=5 superspace is determined by means of the coset method. The
D=4 world volume Nambu-Goldstone boson of broken translation invariance and the
two D=4 world volume Weyl spinor Goldstinos of the completely broken
supersymmetry describe the excitations of the brane into the broken space and
superspace directions. The resulting action is an invariant synthesis of the
Akulov-Volkov and Nambu-Goto actions. The D=4 antisymmetric tensor gauge theory
action dual to the p=3 brane action is determined.
