Change in the condition of the disk is a natural result of aging. This is part of our gradual loss of flexibility as we grow older. But disk degeneration is far more serious in some people than in others. Severe cases may be the result of a deficiency in collagen, the material that makes up cartilage.
There are two distinct types of FSEDs: a hospital outpatient department (HOPD), also referred to as an off-site hospital-based or satellite emergency department (ED), and independent freestanding emergency centers (IFECs).
Time to live. For the 1969 French film, see Time to Live (film). Time to live (TTL) or hop limit is a mechanism that limits the lifespan or lifetime of data in a computer or network. TTL may be implemented as a counter or timestamp attached to or embedded in the data. Once the prescribed event count or timespan has elapsed, data is discarded.