A collection of tracking objects that are provided with more resources of a network property are programmatically identified. Also provided are pharmaceutical compositions comprising the compounds and methods of using the compounds and compositions. The second transceiver has a second clock that provides a second reference signal. The method further includes maintaining the dielectric layer as a surface passivation layer in the photovoltaic cell. The system then returns the pointer, which includes the encoded version number. In one example, the top talker sources among a first set of nodes are found.