  The potential barrier impeding the spontaneous emission of protons in the
proton radioactive nuclei is calculated as the sum of nuclear, Coulomb and
centrifugal contributions. The nuclear part of the proton-nucleus interaction
potential is obtained in the energy density formalism using Skyrme effective
interaction that results into a simple algebraic expression. The half-lives of
the proton emitters are calculated for the different Skyrme sets within the
improved WKB framework. The results are found to be in reasonable agreement
with the earlier results obtained for more complicated calculations involving
finite range interactions.
