A doorstop bar includes a retractable bar, a stopping element, and an urging element. A user equipment receives a measurement configuration for a serving cell and performs a measurement in accordance with the measurement configuration to acquire an actual measurement result. The invention relates to an illumination system for illuminating said display devices. A transaction engine runs on the mobile device and is coupled to the decoding engine. Further, the bushing assembly incorporates strategically located grooves that significantly increase lubricant flow to and around the camshaft. Furthermore described is the use of mevalonate as a starting material for the production of isoprenol in an enzymatically catalysed reaction.