Background We recently validated in cross-sectional studies a new method to determine total body creatine pool size and skeletal muscle mass based on D 3-creatine dilution from an oral dose and detection of urinary creatinine enrichment by isotope ratio mass spectrometry (IRMS). Routine clinical use of the method in aging and disease will require repeated… (More)
Some authors have hypothesized a relationship between rear-impact motor vehicle collisions and subsequent symptoms of neck pain and temporomandibular disorders, or TMD, despite no facial impact. This article examines the TMD aspect in terms of the physiological basis and cultural factors influencing the reporting of such symptoms.
The anomalies in normal forms generally can be reduced by decomposing relations. Unfortunately many current decomposition procedures fail to give lossless decomposition and still preserve all functional dependencies. A pegging method is proposed to solve this decomposition problem. Pegging is also helpful in decomposing relations that have the… (More)