Positioners used in wound care are devices that elevate, transfer, place, support, or help change the position of an entire body or individual parts. They utilize air, air-permeable fabrics, fiber fill, foam, gel, or a combination of these components.
What is the definition of reverse fault? A fault along the Earth's crust is identified by the corresponding type of stress that caused its formation. In geology, a stress is defined as the amount of force exerted on a unit of surface area. Generally, shear stress forms transform faults, compressive stress creates reverse faults and tensional stress produces normal faults.
With both normal and reverse faults, movement occurs vertically. A normal fault is usually associated with plates that are diverging. Tension weakens the crust until the rock fractures, and one block of rock moves downward relative to the other. A reverse fault is usually associated with plates that are colliding. Compression forces a fault block upward. A thrust fault is a special kind of reverse fault where one or more plates are under the ocean. At a thrust fault, a plate below the sea is moving under another plate, thrusting its edge upward. The process of one plate diving under the other is called subduction. Thrust faults can produce larger earthquakes than strike-slip faults.