1. Recent, well-controlled studies have established that moderate doses of caffeine ingested 1 h prior to exercise enhance the performance of certain types of endurance exercise in the laboratory. Moderate caffeine doses produce urinary caffeine levels well below the allowable limit, as determined by the International Olympic Committee. The results are specific to well-trained elite or recreati...

Why do athletes blood dope? From a physiological point of view we need to consider which factors limit the endurance exercise capacity. During whole body endurance exercise, performance is limited by the amount of oxygen delivered to the working muscles. The oxygen delivered, is a function of the capacity of the heart to pump blood out into the systemic circulation (cardiac output) and the amou...

PCM can be used to overcome the capacity limit and energy issues of conventional DRAM-based main memory. This paper explores how the database buffer manager can deal with the write endurance problem, which is unique to PCM-based buffer pools and not considered by conventional buffer algorithms. We introduce a range of novel buffer algorithms addressing this problem, called wear-aware buffer alg...