The stratum corneum's function is to reduce water loss, repel water, protect deeper layers of the skin from injury, and to repel microbial invasion of the skin.

The Iranian leadership formed after the revolution consisted of a narrow ruling stratum and a much broader supporting group that was given charge of administration and political mobilization.

But in any discussion of the forces governing the process of capital accumulation, the manner in which the richest stratum of society acquires and uses its income appears to be of particular significance.