The invention provides methods of disintegrating or reducing the particle size of elemental materials, such as various forms of carbon, and organic crystals that contain minerals and that do not contain minerals. The heel support includes a wall along at least one of the medial side of the shoe, the lateral side of the shoe and the rear of the shoe that extends vertically at least in part and includes at least one window through which at least a portion of the midsole material of the rear sole is exposed to and visible from outside the shoe. In this way a method less complex than prior art methods, and thus suitable for small digital signal processors, is provided. The second algorithm is a priority-based power consumption reduction algorithm. The global diagonal parity is stored in a plurality of global diagonal parity storage blocks. According to the invention, the actuation part and the housing part delimit an internal space that is totally closed off from the environment, and the actuation part is mounted pivotably about an axis that runs axisymetrically with respect to the internal space.