Closed-loop printing registration systems, devices, components and methods are provided. A computing system receives from a user, a first request for accessing specified functions executed by a specified software application. The usefulness of such device applies to Sudden Infant Death Syndrome and prolonged apnea leading to a life threatening event. The first and second connectors rotate on the first shaft pin to adjust a spaced distance between the first and second electrodes. ; and air cooling the tempered steel composition to less than 100\xb0 C.