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We present an efficient method for solving 2D incompressible viscous flows around multiple moving objects. Our method employs an underlying regular Cartesian grid to solve the system using a streamfunction–vorticity formulation and with discontinuities representing the embedded objects. The no-penentration condition for the moving geometry is satisfied by(More)
PURPOSE Motion-defined form deficits in the fellow eye and the amblyopic eye of children with amblyopia implicate possible direction-selective motion processing or static figure-ground segregation deficits. Deficient motion-defined form perception in the fellow eye of amblyopic children may not be fully accounted for by a general motion processing deficit.(More)
BACKGROUND The finite element method (FEM) is a powerful mathematical tool to simulate and visualize the mechanical deformation of tissues and organs during medical examinations or interventions. It is yet a challenge to build up an FEM mesh directly from a volumetric image partially because the regions (or structures) of interest (ROIs) may be irregular(More)
BACKGROUND The study was conducted to investigate the diagnostic performance of infrared (IR) imaging of the breast using an interpretive model derived from a scoring system. METHODS The study was approved by the Institutional Review Board of our hospital. A total of 276 women (mean age = 50.8 years, SD 11.8) with suspicious findings on mammograms or(More)
Ranking Web search results has long evolved beyond simple bag-of-words retrieval models. Modern search engines routinely employ machine learning ranking that relies on exogenous relevance signals. Yet the majority of current methods still evaluate each Web page out of context. In this work, we introduce a novel source of relevance information for Web search(More)
BACKGROUND Although numerous evidence-based and feasible interventions are available to treat pain from childhood vaccine injections, evidence indicates that children are not benefitting from this knowledge. Unrelieved vaccination pain puts children at risk for significant long-term harms including the development of needle fears and subsequent health care(More)
Point of care reminders have been shown to be effective in changing ordering behavior in primary care settings, but electronic reminders in the emergency department have not been studied. We retrospectively evaluated a computerized system designed to prompt syphilis testing in an emergency department during an outbreak. Most individual reminders were not(More)
STUDY OBJECTIVE To determine whether patients prescribed inhaled corticosteroids are at risk for adverse gastrointestinal effects. DESIGN Retrospective cohort study. SETTING Urban health center with an academic affiliation. PATIENTS A total of 19,443 adults (mean age 31.8 yrs) with airways disease, defined as a diagnosis of asthma or chronic(More)