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)
One way to image the molecular pathology in Alzheimer's disease is by positron emission tomography using probes that target amyloid fibrils. However, these fibrils are not closely linked to the development of the disease. It is now thought that early-stage biomarkers that instigate memory loss are composed of Aβ oligomers. Here, we report a sensitive… (More)
Four studies examined the willingness of young, healthy individuals to take drugs intended to enhance their own social, emotional, and cognitive traits. We found that people were much more reluctant to enhance traits believed to be more fundamental to self‐identity (e.g., social comfort) than traits considered less fundamental to self‐identity (e.g.,… (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)
We study the two-dimensional localization problem for (i) a classical diffusing particle advected by a quenched random mean-zero vorticity field, and (ii) a quantum particle in a quenched random mean-zero magnetic field. Through a combination of numerical and analytical techniques we argue that both systems have extended eigenstates at a special point in… (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)
We give a combinatorial interpretation for the super Catalan number S(m, m + s) for s ≤ 3 using lattice paths and make an attempt at a com-binatorial interpretation for s = 4. We also examine the integrality of some factorial ratios.
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)