The Most Expensive iRobot Roombas. iRobot is an American robotic and advanced technology company that develops and sells a variety of autonomous robots for both household consumers and the military/police. The company was first founded in 1990 and primarily concerned itself with developing robots for the armed services, such as bomb-difusing robots.
Muscular dystrophies are a group of genetic conditions characterized by progressive muscle weakness and wasting (atrophy). The Duchenne and Becker types of muscular dystrophy are two related conditions that primarily affect skeletal muscles, which are used for movement, and heart (cardiac) muscle.These forms of muscular dystrophy occur almost exclusively in males.he Duchenne and Becker types of muscular dystrophy are two related conditions that primarily affect skeletal muscles, which are used for movement, and heart (cardiac) muscle.
Duchenne muscular dystrophy (DMD) â The most severe form of muscular dystrophy, DMD usually affects young boys and causes progressive muscle weakness, usually beginning in the legs.Dystrophin â A protein that helps muscle tissue repair itself. Emery-Dreifuss muscular dystrophy (EDMD): EDMD affects young boys, causing contractures and weakness in the calves, weakness in the shoulders and upper arms, and problems in the way electrical impulses travel through the heart to make it beat (heart conduction defects).