Patrick Cassidy

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MD there took place the first Upper Ontol-ogy Summit (UOS). This was a convening of custodians of several prominent upper ontologies, key technology participants, and interested other parties, with the purpose of finding a means to relate the different ontologies to each other. The result is reflected in a joint communiqué, directed to the larger ontology(More)
The COSMO foundation ontology is being developed to test the hypothesis that there are a relatively small number (under 10,000) of primitive ontology elements that are sufficient to serve as the building blocks for any number of more specialized ontology elements representing concepts and terms used in any computer application. Finding evidence for this(More)
Manipulation of control points is a standard procedure in parametric B-spline surface design. Unfortunately, this tool alone is not sufficient to achieve certain goals such as removal of gaps among compound parametric B-spline surfaces. In this paper, we introduce a new approach for removing gaps but maintaining at least the geometrical smoothness(More)
Manipulation of control points is a standard procedure in B-spline surface patch design. Unfortunately, this tool alone is not suucient to achieve certain goals such as removing gaps among patches. In this paper, we introduce another approach for removing gaps but maintaining the geometrical smoothness condition. The only requirement is to sacriice the true(More)
OBJECTIVE To assess the frequency of additional care, and parents' perceptions of quality, respectful care, in pregnancies subsequent to stillbirth. DESIGN Multi-language web-based survey. SETTING International. POPULATION A total of 2716 parents, from 40 high- and middle-income countries. METHODS Data were obtained from a broader survey of parents'(More)
Interventional oncology procedures such as thermal ablation are becoming routine for many cancers. Hydrodissection-separating tissues with fluids-protects tissues near the treatment zone to improve ablation's safety and facilitate more aggressive treatments. However, currently used fluids such as normal saline and 5% dextrose in water (D5W) migrate in the(More)
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