Aaron Sheldon

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The purpose of this work was to determine the temporal origins of the standard deviation of successive 5-min mean heart period sequences (SDANN) and the power of the ultralow-frequency (ULF) spectral band (< 0.0033 Hz). We hypothesized that SDANN and ULF might have their origins in changes in human activity rather than slow oscillatory rhythms. Heart period(More)
Background: There is currently conflicting evidence surrounding the effects of obesity on postoperative outcomes. Previous studies have found obesity to be associated with adverse events, but others have found no association. The aim of this study was to determine whether increasing body mass index (BMI) is an independent risk factor for development of(More)
BACKGROUND We aimed to develop and test a literature-based model for symptoms that associate with cardiac causes of syncope. METHODS AND RESULTS Seven studies (the derivation sample) reporting ≥2 predictors of cardiac syncope were identified (4 Italian, 1 Swiss, 1 Canadian, and 1 from the United States). From these, 10 criteria were identified as(More)
We have studied the calcium-binding properties of two high affinity calcium-binding proteins from squid optic lobes: one, squid calmodulin (SCaM), similar to bovine brain calmodulin (BCaM), the other, squid calcium-binding protein (SCaBP), distinct (Head, J.F., Spielberg, S., and Kaminer, B. (1983) Biochem J. 209, 797-802). Equilibrium dialysis measurements(More)
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