An apparatus for facilitating robust data transport. By having the input imprint connected to the source rather than the drain and the substrate and gate terminals connected to a reference so that a decrease in the leakage current is realized as the source voltage is increased over a range. The global descriptor has a plurality of field indicia that allow a binder to link separate object files bound to the first and second execution environments. The first computer means transfer the request for service to the second computer means before the person who has prepared such request reaches the service counter. Likewise, the invention relates to a method for the production of polyamides in which such a reactor is used. A mobile device exchanges messages with a backend server to validate a user and to control an actuator for a physical barrier responsive to validation.