Calculation of rp-Process Rates in the sd Shell via the Nuclear Shell Model

In view of uncertainties often associated with levels of the proton-rich final nucleus in (p,gamma) reactions, we discuss the advantages of a method based on the Isobaric Mass Multiplet Equation (IMME) to predict levels and check spin/parity assignments. The application of the method to several nuclei is illustrated. Results for some reaction rate calculations are also presented.