  The theoretical evaluation of the coupling constants gpiNN , gKNLambda and
gKNSigma is undertaken using QCD sum rules. These quantities were previously
calculated with exponential (Borel) kernels used to suppress the unknown
contributions of the hadronic continua. This method however introduces
arbitrariness and instability in the calculation. In order to avoid these I
redo the calculation using polynomial kernels tailored to vanish at the
baryonic resonance masses. The results are gpiNN = 12.5 +- 1.0, gKNSigma = 5.45
+- .4, gKNSigma= -(12.7 - 15.0) which are close to experiment and to the
predictions of SU(3) and which , with the corresponding Goldberger-Treiman
Discrepancy satisfy quite well the Dashen-Weinstein relation.
