William Dawson

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We present first results from the third GRavitational lEnsing Accuracy Testing (GREAT3) challenge, the third in a sequence of challenges for testing methods of inferring weak gravitational lensing shear distortions from simulated galaxy images. GREAT3 was divided into experiments to test three specific questions, and included simulated space-and(More)
When anterior cervical discectomy is performed for either "hard" or "soft" cervical disc herniation using either the Cloward approach or simple discectomy, it is often difficult to confirm intraoperatively the adequacy of the lateral, superior, and inferior margins of the dissection. Placement of a nonionic contrast material, iohexol, into the disc space(More)
RoboGrams is a lightweight and efficient message passing architecture that we designed for the RoboCup domain and that has been successfully used by the Northern Bites SPL team. This unique architecture provides a framework for separating code into strongly de-coupled modules, which are combined into configurable dataflow graphs. We present several(More)
Visual acuity development in human infants: evoked potential measurement, INVEST. The relationship between the volume of an intraocular gas bubble and the area of retina covered by the bubble was studied with the use of both a transparent model and a mathematical model of the vitreous cavity. The arc of contact of intraocular bubbles was calculated for(More)
Hybrid Density Functional Theory (DFT) has recently gained popularity as an accurate model of electronic interactions in chemistry and materials science applications. The most computationally expensive part of hybrid DFT simulations is the calculation of exchange integrals between pairs of electrons. We present strategies to achieve improved load balancing(More)
Performing artists are athletes. Like athletes, performing artists practice and/or perform most days with little off season, play through pain, "compete" in challenging environments, and risk career-threatening injury. Athletes and the Arts is a multiorganizational initiative linking the sport athlete and musician/performing artist communities. Performing(More)
  • Reinout J. van Weeren, Felipe Andrade-Santos, +15 authors Kevin Fogarty
  • 2016
On the largest scales, the Universe consists of voids and filaments making up the cosmic web. Galaxy clusters are located at the knots in this web, at the intersection of filaments. Clusters grow through accretion from these large-scale filaments and by mergers with other clusters and groups. In a growing number of galaxy clusters, elongated Mpc-sized radio(More)
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