Azacyclic ethynyl derivatives, which are found to be cholinergic ligands at the nicotinic acetylcholine receptors and modulators of the monoamine receptors and transporters. Each wall element is connected to a plurality of other wall elements so as to form the wall. The main body creates an Internet homepage based on the fetched photographed image data, and receives a print order of the photographed image from a homepage viewer through the Internet. In other cases, the framework can provide for the passing of traceability data in protocol-specific headers of existing inter-application communication protocols. A landmark selection unit selects landmark data included in the landmark selection area from said database. A grinding wheel for producing a cutting tool, along with a method for using such a grinding wheel, is also disclosed.