'PAR' in PAR 20 or PAR 50 is an acronym standing for Parabolic Aluminized Reflector. This name refers to the construction of the PAR bulb. The bulb traditionally features a tungsten filament surrounded by a reflector with an aluminum coating (hence aluminized). The reflector intensifies the beam and makes it more efficient.
Toe necrosis; Toe ischemia; Amputation; Dry gangrene Abstract Toe necrosis may have vast different etiologies. These include ischemia, embolus, and others. (1) The most common etiology is ischemia. It is a reduction in blood supply to a viable tissue that can lead to susceptibility to infection and tissue death. Peripheral ischemia, which is rooted in the
Dear Reader, The loss of a toenail, also called onychoptosis (which literally means falling nail in Greek), can be largely blamed on two major culprits â fungus and injury. Fungus: Several different types of microscopic fungi can cause onychoptosis by feeding on keratin, the tough protein that makes up toenails. Onychoptosis caused by fungus isn't that rare a problem â three to five percent of Americans are affected, as are up to 18 percent of people worldwide.