Snap Review: Definition of. a Pressure Ulcer--. â¢ A pressure ulcer is localized injury to the skin and/or underlying tissue. usually over a bony prominence, as a result of pressure, or pressure in. combination with shear and/or friction.
Apple Indeed Replacing Recalled iPod Nano Units with Current-Generation Models. Just hours after we reported that Apple appeared to have begun shipping out current-generation iPod nanos as replacements for recalled first-generation units, users are beginning to report in that they are indeed receiving the current models.
You can distinguish the iPod nano (4th generation) from previous iPod nano models by: 1  Its taller screen. 2  Its curved surface. 3  Its oval shape when seen from the top or bottom. 4  The inclusion of an accelerometer that is used by the Shake feature.