The invention relates to novel hybrid cholinesterase inhibitors containing the melatonin or its oxidation products unit and tetrahydroacridine unit linked via a carbamate bond. In embodiments, a mobile device receives policy containers from a plurality of disparate management agents. Each node in the hierarchy has an associated classifier, such as a Radial Basis Function classifier, that determines a probability that an object is a member of the class associated with the node. A frame, the upper and lower conveyor axes, and the sweeping mechanism are operatively coupled to the frame.