Disclosed are novel heterocyclic derivatives, useful for the treatment of various disease states, in particular cardiovascular diseases such as atrial and ventricular arrhythmias, intermittent claudication, Prinzmetal’s angina, stable and unstable angina, exercise induced angina, congestive heart disease, and myocardial infarction. The plurality of conjugates can be exposed to a sample and the nitrogen vacancy centers can be optically pumped. A main wire is engaged with the groove. The identifier is one of a device identifier and a user identifier. The payment service provider can then direct a first electronic payment to the payee on behalf of the first payor based upon the retrieved first electronic payment information and a second electronic payment to the payee on behalf of the second payor based upon the retrieved second electronic payment information. A call is initiated by the UE in the shared network and routed in accordance with the selected network operator.