Four Types of Actuators. An actuator is a kind of motor that controls or moves mechanisms or systems. It takes hydraulic fluid, electric current or other sources of power and converts the energy to facilitate the motion.
Dercumâs disease, also known as adiposis dolorosa, is a rare disorder characterized by multiple, painful growths consisting of fatty tissue, called lipomas. They mainly occur on the trunk, the upper arms and upper legs and are found just below the skin.
Molluscum contagiosum is a skin infection caused by a poxvirus. This highly contagious viral infection most commonly affects children two to 11 years of age.14 It also occurs in sexually active adolescents. The lesions are flesh-colored or pearly white, small papules with central umbilication (Figure 5).