Notification of lapse information of a public key certificate from a PKI directory server to a PKI directory client. The pressure regulator is composed of a control unit, a pressure reducer that is controlled by the control unit, and a throttle which connects the gas outlets of the working chamber of the control unit and the pressure reducer. The invention also provides for a numerical reconstruction algorithm of an inclined surface of the objectprism. The third measure is to provide a power bias to radiative heat elements above the reaction chamber. The method comprises a mobile electronic device establishing a data connection to a content source, a gateway creating a record comprising information related to the data connection and providing the record to a server, and the server charging the content source for the data connection and providing at least a part of the record to the content source. Statistical analysis such as regression analysis determines the model with the outcome related to the nature of the inquiry.