Most researchers believe that Olde Robert Selfe was the ancestor of most of the Self family in America. Arriving in Virginia in the 1600s, Robert Selfe appears to have been descended from Walter Selfe of Cripplegate, London, England. The name Self is thought to be a shortened version of Seawolf, dating back to the early Viking voyages along the English coast.
A stress reaction is the lowest grade of the three levels of bone injury. A stress reaction is essentially the early stages of a stress fracture. This occurs when the stresses affecting the bone occur at a faster rate than the rate at which the bone is able to rebuild itself.
Definition. Stress is defined as an organism's total response to environmental demands or pressures. When stress was first studied in the 1950s, the term was used to denote both the causes and the experienced effects of these pressures.More recently, however, the word stressor has been used for the stimulus that provokes a stress response.tress, damage to restorations by, n a mechanical property that pertains to the capacity of substances used for restorative and preventive applications to loosen in response to continual pressure over time.