Colors can be measured and quantified in various ways; indeed, a person's perception of colors is a subjective process whereby the brain responds to the stimuli that are produced when incoming light reacts with the several types of cone cells in the eye.
unit of service. unit of service. any individual, family, aggregate, organization, or community given nursing care. The level at which service is delivered varies with the particular unit entity.
State Units on Aging. State Units on Aging (SUAs) are agencies of state and territorial governments designated by governors and state legislatures to administer the Older Americans Act in their area. No state uses the term State Unit on Aging and each state has devised its own title for its agency.