Each PHP revenue code is associated with particular cost centers on the cost report. The revenue-to-cost-center crosswalk identifies the primary, secondary (if any), and tertiary (if any) cost centers that are associated with each PHP revenue code, and which are the source for the CCRs used in PHP ratesetting. The PHP portion of that OPPS crosswalk is shown in Table 52 below.
concave. rounded and somewhat depressed or hollowed out. concave face. of the Golgi complex in the developing embryo is associated with maturing secretory vesicles. concave shoe. a horseshoe with its inner edge thicker than the outer so that the surface touching the ground is slightly smaller than the surface in contact with the hoof.
CONVEX or POSITIVE lenses will CONVERGE or FOCUS light and can form an IMAGE. CONCAVE or NEGATIVE lenses will DIVERGE (spread out) light rays. You can have mixed lens shapes too: See a demonstration (opens a new window) of what happens to the light path when you combine several convex or concave lenses. Perfectly straight, until something bends it. The straight paths of light are called LIGHT RAYS.