  The effect of the heating of neutrinos by scattering with electrons and
positrons and by e-e+ annihilation on nucleosynthesis is calculated for a
spherically symmetric baryon inhomogeneous model of the universe. The model has
a high baryon density core and a low density outer region. The heating effect
is calculated by solving the Boltzmann Transport Equation for the distribution
functions of electron and muon/tau neutrinos. For a range of baryon-to-photon
ratio = [ 0, 1.5 ] x 10^-10 and distance scale = [ 10^2, 10^8 ] cm the heating
effect increases the mass fraction of He4 by a range of [1, 2] x 10^-4. The
change of the value of the mass fraction of He4 appears similiar to the change
caused by an upward shift in the value of the baryon-to-photon ratio. But the
change to deuterium is a decrease in abundance ratio Y(d)/Y(p) on the order of
10^-3, one order less than the decrease due to a shift in baryon-to-photon
ratio.
