Ray E. Levitt

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To provide a safe and productive environment, project managers need to plan for the work spaces required by construction activities. Work space planning involves representing various types of spaces required by construction activities in three dimensions and across time. Since a construction schedule consists of hundreds of activities requiring multiple(More)
Construction activities require a set of work spaces to be executed safely and productively. The locations and volumes of these spaces change in three dimensions and across time, according to project-specific design and schedule information. Previous research on construction space management requires users to specify the spatio-temporal data necessary to(More)
Bolus etomidate transiently increases the amplitude of scalprecorded somatosensory evoked potentials (SSEPs). The reproducibility of this augmentation and its dose-response relationship are unknown. In unpremedicated patients, we studied the effect on the SSEP of repetitive administration of single doses of etomidate (0.1 mg/kg i.v. bolus) in six patients(More)
This study assessed the effectiveness of surface integrated electromyographic (EMG) biofeedback in the rehabilitation of 51 patients undergoing minor arthroscopic knee surgery. Prior to surgery, both control (n = 23) and treatment (n = 28) groups received verbal and written explanations of postoperative isometric exercises; the treatment group received(More)
Abciximab (c7E3 Fab) inhibits platelet aggregation and is used to prevent complications of percutaneous coronary intervention. Thrombocytopenia is an often-cited complication of abciximab. Pseudothrombocytopenia is due to ethylenediaminetetraacetate (EDTA)-activated platelet agglutination, resulting in a spuriously low platelet count. We have looked at both(More)
The interplay between formal and informal contracting in integrated project delivery Lena E. Bygballe, Geert Dewulf & Ray E. Levitt a Department of Strategy and Logistics, Centre for the construction industry, BI Norwegian Business School, Oslo, Norway b Department of Construction Management and Engineering, University of Twente, Enschede, The Netherlands c(More)
Homozygous achondroplasia is a rare yet distinct clinical entity. Most infants succumb to an early death as a result of respiratory compromise due to upper airway obstruction, thoracic cage deformity, and/or cervicomedullary compression. The successful cervicomedullary decompression of a 16-week-old infant with homozygous achondroplasia is described. This(More)
  • Ray E. Levitt
  • Canadian family physician Médecin de famille…
  • 1976
Under threat by the family practice nurse and physician of future disinterest in their obesity problem, a family who had been refractory to all previous weight loss programs worked out a program based on behavior modification principles. The program that evolved provided them through their weight loss with a way of deriving pleasure from the competition(More)
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