BACKGROUND Up to date, no information exists about the intra-articular temperature changes of the knee related to activity and ambient temperature. METHODS In 6 healthy males, a probe for intra-articular measurement was inserted into the notch of the right knee. Each subject was jogging on a treadmill in a closed room at 19 degrees C room temperature and skiing in a ski resort at -3 degrees C...

Objectives: Perioperative temperature has been suggested to be a marker of an immune reaction against allograft valves. We explored whether there is an association between perioperative temperature and pulmonary allograft valve function or the development of anti-HLA antibodies. Methods: The highest temperature on each of the first five postoperative days was extracted from the records of 211 p...

There are two natural orderings in signals: temporal order and rank order. There is no compelling reason to explore only one of these orderings, either in the discrete-time or in the continuous-time case. Nevertheless, the concept of rank order for continuous-time signals remains virtually unstudied, which is in striking contrast to the discrete-time case: ranked order discrete-time filters, of...