Variation as a function of the radius of K, the thermal diffusivity, D_conv, the convective diffusion coefficient, D_shear, the shear diffusion coefficient, D_h, the horizontal turbulence coefficient, and D_eff, the effective diffusivity in different 60 M_⊙ models at solar metallicity. The letters correspond to models computed with the prescription given in the second column of Table 1. The profiles are taken when the central mass fraction of hydrogen X_c = 0.35.