William Goldstein

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This paper investigates the Data for Development (D4D) challenge [3], an open challenge set by the French mobile phone company, Orange, who have provided anonymized records of their customers in the Ivory Coast. This data spans a 5 month (150 day) horizon spread across 4 different sets containing antenna-to-antenna traffic, trace data for 50,000 customers(More)
A 72-year-old acyanotic woman had development of acute right heart failure with systemic hypotension 2 hours after a curative right intrapericardial pneumonectomy for primary lung cancer. A postoperative pulmonary angiogram revealed a major left to right shunt through previously unsuspected partial anomalous venous drainage of the left upper lobe of the(More)
BACKGROUND Not all health care workers (HCWs) are at the same risk for tuberculin skin test (TST) conversion, indicating latent tuberculosis (TB) infection. OBJECTIVE To identify risk factors for TST conversion among HCWs. METHODS A retrospective cohort study conducted at a tertiary university medical centre included every HCW who had had a negative(More)
We examine the impact of truth-revealing incentives in preference reversal experiments. These experiments are first classified by incentive type: no monetary payments, monetary payments that are not a priori truth-revealing, and monetary payments that are truth-revealing. We find that the behavioral model that best explains preference reversal data is(More)
There is a prevalent claim in the judgment and decision making (JDM) literature that attention to a piece of information confers weight or importance upon that information. The prevalence of that claim is not commensurate with the empirical evidence – the quantity of evidence is sparse, and, is constrained by significant limitations in the methodological(More)
Normothermic ischemic arrest of the heart as an adjunct to open-heart surgery has gained widespread clinical acceptance. This form of arrest, achieved by simply cross-clamping the ascending aorta to eliminate coronary perfusion, is convenient in that it provides a bloodless operative field and a relaxed myocardium. The upper limit ofthe safe period of such(More)
The results presented in Part I of this paper are extended to-include previously neglected electro-weak degrees of freedom, and are illustrated in a toy model. A problem associated with colored technifermions is identified and discussed. Some hope is offered for the disappointing quark mass matrix obtained in Part I. Submitted to Nuclear Physics B * Work(More)