A rotational spring clip is provided for connecting a male component to a female component. It is composed of a microprocessor, exampling circuit, sensing circuit, acquiring circuit, firing circuit, and AC to AC converter. Switching is made between a high-voltage mode in which an electromagnet coil is supplied with electric power from a high voltage power source and a low voltage mode in which the electromagnet coil is supplied with electric power from a low voltage power source. The system also includes a computing device in electronic communication with the graphical code reading device. The system compares the metadata to the text of the document and associates the metadata with the text of the document when at least some of the metadata matches the text of the document. Pharmaceutically-advantageous salts of the compounds, methods of use of the compounds, either alone or in combination with other pharmacological agents, and pharmaceutical compositions useful in practicing the methods of the invention are also disclosed.