A ferrite material of the present invention is configured such that 0. The virtual conference center architecture provides a virtual conference center that interfaces with multiple conference centers that each support a certain number of accounts. The deflector element is of generally conical shape with an apex thereof directed upwardly in substantial alignment with the vertical center axis. In the method of manufacturing the footwear, the upper and an outsole are disposed a set distance apart. The abstract interpretation is evaluated to identify vulnerabilities using, for example, type qualifiers to associate security levels with variables andor functions in the application being analyzed and typestate checking.