  Using direct numerical simulations of isotropic turbulence in periodic cubes
of several sizes, the largest being $8192^3$ yielding a microscale Reynolds
number of $1300$, we study the properties of pressure Laplacian to understand
differences in the inertial range scaling of enstrophy density and energy
dissipation. Even though the pressure Laplacian is the difference between two
highly intermittent quantities, it is non-intermittent and essentially follows
Kolmogorov scaling, at least for low-order moments. Using this property, we
show that the scaling exponents of local averages of dissipation and enstrophy
remain unequal at all finite Reynolds numbers, though there appears to be a
\textit{very} weak tendency for this inequality to decrease with increasing
Reynolds number.
