A method of obtaining data for a geographic database for use with a navigation system includes collecting data indicating parking availability at a parking facility at a plurality of times and analyzing the data indicating parking availability. The invention further relates to a treatment programme for treating heart failure, which involves the co-use or co-administration of perhexiline with one or more other compounds that are advantageous in treating heart failure or the symptoms thereof. In the region of each face, at least one connecting body is introduced in the reinforced concrete body and anchored therein for connecting to a connecting body of an adjoining tower segment. As one switch turns \u201coff,\u201d another should be turning \u201con\u201d until a cycle is completed. The select instruction chooses between two vector components, based on the mask, and places the selected components into a new vector.