Provided is a method and system for synchronizing a plurality of content directory service devices in a home network environment. A method for operating a drive train including transmission and drive engine includes a step that when the transmission is shifted, one of the shift elements, which is engaged in the force flow, is disengaged by the actuation device and the other shift element, which is engaged, is disengaged. The framework includes a front bar, a back bar, and two side bars, corporately bounding a receiving space. Modulating agents may additionally comprise one or more cell adhesion recognition sequences recognized by the other adhesion molecules. The holding register is coupled to the data unit and the output register. A casing distance between an inner circumference of the casing and the valve member is minimized when the valve member is in the first position and maximized when the valve member is in the second position.