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.
This chronic inflammatory skin disorder is generally confined to areas of the head and trunk where sebaceous glands are most prominent. When seborrheic dermatitis occurs in the neonatal period, it usually disappears by six to 12 months of age, suggesting that it may be a response to maternal hormone stimulation.1.