The present invention relates to the use of an acid enriched in docosahexaenoic acid or eicosapentaenoic acid or DHA-derived EPA for manufacturing a drug for the treatment of processes that involve associated oxidative damage. The switching power supply circuit includes a power output stage, a pulse width modulation signal generator, a compensation module, and a overshooting protection module. The light pipe includes an entrance and an exit. The multimedia call is then completed to the multimedia terminal at the physical address. The electronic device may have a frame to which housing structures are attached and may have a stand or other support structure.