Abstract: The present invention provides methods for identifying bacteria by analysis of lipid A and/or lipoteichoic acid structure and/or mass spectrometry ionization patterns.

Abstract: A keyboard for use with a computing device. In some embodiments, the keyboard comprises a plurality of keys having upper surfaces to which a durable protective coating has been applied and legend symbols that have been etched into the upper surfaces through the durable protective coating.

Abstract: Embodiments of a pen/stylus apparatus are disclosed. In one embodiment, among others, a pen/stylus apparatus comprises a chamber configured to receive a pen, a holding element having a shaft, the holding element configured to retain the pen in a partially-ejected position, a button having a retainer, the retainer configured to retain the shaft when the pen is completely-inserted in the chamber, and a biasing element adjacent to the holding element, the biasing element configured to eject the holding element to a position corresponding to the partially-ejected position of the pen when the retainer is released from the shaft.