William Stanford

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UNLABELLED Chronic kidney disease profoundly disturbs calcium-phosphate metabolism and predisposes to premature atherosclerosis. Both coronary artery calcification (CAC) and endothelial dysfunction are common in hemodialysis (HD) patients. We hypothesized that a calcium-free phosphate binder would improve endothelial function and delay progression of(More)
Current guidelines and literature on screening for coronary artery calcium for cardiac risk assessment are reviewed for both general and special populations. It is shown that for both general and special populations a zero score excludes most clinically relevant coronary artery disease. The importance of standardization of coronary artery calcium(More)
Identification of anatomical features is a necessary step for medical image analysis. Automatic methods for feature identification using conventional pattern recognition techniques typically classify an object as a member of a predefined class of objects, but do not attempt to recover the exact or approximate shape of that object. For this reason, such(More)
Quantitative evaluation of cardiac function from cardiac images requires the identification of the myocardial walls. This generally requires the clinician to view the image and interactively trace the contours. This method is susceptible to great variability that depends on the experience and knowledge of the particular operator tracing the contours. The(More)
Necessary and sufficient conditions are derived under which the Tit-for-Tat strategy pair is a subgame perfect equilibrium in the standard discounted prisoner's dilemma. The sensitivity of the equilibrium to changes in the discount parameters is shown to be a common feature of all such nontrivial "reactive" equilibria. This appears to rule them out as(More)
In an m 3 m bimatrix game, consider the case where payoffs to each player are randomly 1 2 drawn without replacement, independently of payoffs to the other player, from the set of integers 1,2,. .. ,m m. Thus each player's payoffs represent ordinal rankings without ties. In such 'ordinal 1 2 randomly selected' games, assuming constraints on the relative(More)
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