Chris Pettit

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Discovering and accessing digital data, which is predominantly spatial, is a problem often faced by researchers and policy-and decision-makers in Australia. Significant efforts are underway to provide access to discovery mechanisms to large data repositories, such as the INSPIRE geoportal in the European Union and the Research Data Australia portal(More)
Big data has now become a strong focus of global interest that is increasingly attracting the attention of academia, industry, government and other organizations. Big data can be classified in the disciplinary area of traditional geospatial data handling theory and methods. The increasing volume and varying format of collected geospatial big data presents(More)
  • William Cartwright, Chris Pettit, Anitra Nelson, Mike Berry
  • 2005
EXTENDED ABSTRACT A project current research project is developing and evaluating the use of Web-delivered tools to supplement the community decision-making process. This has involved building and testing a 3D tool for Community Collaborative decision-making in the Jewell Station Neighbourhood (JSN). The focus of this decision-making tool provision is(More)
OBJECTIVES This study examines outcomes in a national sample of patients undergoing isolated aortic valve replacement (AVR) for aortic stenosis, with particular focus on advanced-age patients and those with extreme severity of comorbid illness (SOI). METHODS Data were obtained from the Nationwide Inpatient Sample and included all patients undergoing AVRs(More)
BACKGROUND Previous studies have demonstrated that patients undergoing complex surgical procedures at high-volume centers have improved outcomes. The goal of this study was to determine if this volume-outcomes relationship persists at a national level among patients undergoing emergent open repair for thoracic aortic dissection. METHODS De-identified(More)
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