Once daily pharmaceutical compositions containing lithium carbonate in the form of coated granules. For contact starts and stops the SLIP interface supports the slider so that the slider tips toward the predicted tipped interface. Preferably, this takes on the form of flux distribution plates, placed between rotor and stator. The characteristic of the SOA is evaluated on the basis of the measurement result of the optical output and the measurement result of the transmission light without using an optical input to the SOA. In another aspect, nodes are differentiated into a pattern comprising pattern elements, where each pattern element comprises at least one node, wherein the pattern is used to determine which nodes are sensitized about a detecting node and to determine a propagation direction for the warning signal.