681 research outputs found

    Interview with Christopher G. Chute

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    Christopher Chute received his undergraduate degree in English in 1977 and his medical degree in 1982 from Brown University. That same year, Dr. Chute also earned a Master’s in Public Health from Harvard University. After completing his residency in internal medicine at Dartmouth College, Hitchcock Medical Center from 1982 to 1985, Dr. Chute went on to complete a doctorate in Epidemiology at Harvard University in 1990. In 1988, Dr. Chute joined the faculty of the Mayo Clinic as assistant professor of epidemiology in the Department of Health Sciences Research. In his first year at the Mayo Clinic, he founded the Division of Biomedical Informatics within the Department of Health Sciences Research and chaired the division until 2008. In 1988, Dr. Chute was also appointed director of the Mayo Clinic’s Cancer Registry, a position he held until 2001. In 1990, Dr. Chute was appointed as an associate member of the health informatics graduate faculty at the University of Minnesota, becoming a senior member of the graduate faculty in 2005. In 1998, Dr. Chute was appointed co-principal investigator with Laël Gatewood, PhD of the joint University of Minnesota/Mayo Clinic National Library of Medicine Research Training Program in Medical Informatics. Throughout his career, Dr. Chute’s research focus has been in the domain of biomedical terminology and ontology, with a long-standing emphasis on scalable terminology services that can be used across biology and medicine. This work has extended into high-throughput disease phenotyping methods using electronic health records. Dr. Chute was inducted into the American College of Epidemiology in 1987, the American College of Physicians in 1988, and the American College of Medical Informatics in 1995.Christopher Chute begins by discussing his educational background and his decision to move to the Mayo Clinic in the late 1980s. Next, he discusses some of the health informatics research and educational projects that the Mayo Clinic and the University of Minnesota have collaborated on. Dr. Chute describes in detail the main research projects that he and the Division of Biomedical Informatics have worked on since the late 1980s, including research in the areas of biomedical terminology and ontology and the management of patient data in electronic medical records. He discusses his role in the University of Minnesota’s National Library of Medicine Research Training Program and the eventual formal incorporation of the Mayo Clinic into the training program. He discusses the changes in the training program over the course of the 1990s and early 2000s in the context of broader changes in the field of health informatics in particular and biomedical research more generally. Dr. Chute next discusses the efforts, beginning in the mid-2000s, to establish a collaborative health informatics training program between the Mayo Clinic, Arizona State University, and the University of Minnesota. He also discusses the process by which both the Mayo Clinic and the University of Minnesota secured Clinical Translation Science Awards. Finally, Dr. Chute reflects on the interprofessionalism that has characterized health informatics at the University of Minnesota.Chute, Christopher G.; Tobbell, Dominique. (2014). Interview with Christopher G. Chute. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/168052

    Debugging Mappings between Biomedical Ontologies: Preliminary Results from the NCBO BioPortal Mapping Repository

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    The ability to provide semantic mappings between multiple large biomedical ontologies is considered as a very important, albeit labor-intensive and error-prone task. To facilitate such a process, several approaches for collaborative ontology mapping building and sharing have been proposed in the recent past. However, despite the improvements in community-wide mappings development, more often the mapping rules are redundant, incoherent, and at times, incorrect. In this paper, we present an approach for identifying such “erroneous mappings” using Distributed Description Logics. Specifically, we illustrate how logical reasoning can be used to discover semantic inconsistencies caused by erroneous mappings, and provide preliminary results of experiments based on the National Center for Biomedical Ontology BioPortal mapping repository

    Interview of Rick Greene by Tamar Chute

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    Rachel Carson: author of The Silent Spring (p. 2) -- Jeff Miller: victim of Kent State shootings (p. 13) -- E. Paul Taiganides: Professor, Dept. of Agricultural Engineering (pp. 2, 20)The media can be accessed here: http://streaming.osu.edu/knowledgebank/university_archives/Greene_Rick_102210.mp4Rick Greene came to OSU as a freshman in 1969. He witnessed firsthand the student demonstrations and riots of 1970, and the changes that they brought to OSU and across the country. He currently makes his home in Florida, but returns to Ohio State for football games

    Cover Story piece on Carolyn Chute, 53, of North Parsonsfield, author of The

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    Cover Story piece on Carolyn Chute, 53, of North Parsonsfield, author of The Beans of Egypt, Maine, Letourneau\u27s Used Auto Parts, and Merry Men. Chute, the self-anointed Secretary of Offense for the 2nd Maine Militia, plans to announce that she will run as a write-in candidate for governor in 2002. With special focus on Chute\u27s philosophy and self-perceived role as an activist and advocate for the downtrodden

    this just in piece on Maine author Carolyn Chute and fellow anti-corporate act

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    this just in piece on Maine author Carolyn Chute and fellow anti-corporate activist David Kubiak, who are running for governor as write-in co-candidates. Chute and Kubiak plan to hold mock town meetings in each Maine county and will attempt to collect enough signatures and $5 donations to qualify for Clean Election money

    Op-Ed piece explaining why the author joined Carolyn Chute\u27s Second Maine Militi

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    Op-Ed piece explaining why the author joined Carolyn Chute\u27s Second Maine Militia and describing the first meeting

    View from Pier Road. Interview with author Carolyn Chute, who has personal un

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    View from Pier Road. Interview with author Carolyn Chute, who has personal understanding of the issues of rural Maine poverty discussed elsewhere in this issue of Salt

    Lessons Learned: J. Christopher Flowers

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    J. Christopher Flowers has been managing director, CEO, and chairman of the private investment firm J.C. Flowers & Co. LLC for many years. During the Global Financial Crisis (GFC) of 2007–2009, Flowers was involved with investing in some of the largest banks and financial institutions in the world and advising and consulting with them on possible acquisitions, mergers, and sales as several of these firms began to collapse. In the fall of 2008, Flowers worked closely with the Bank of America (BofA) on proposals to acquire Lehman Brothers and Merrill Lynch, and he developed a plan for private investors to help bail out American International Group (AIG). He negotiated directly with lending banks, federal regulators, and Treasury officials

    Air concentration and bulked flow along a curved, converging stepped chute

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    2020 Spring.Includes bibliographical references.This thesis focuses on the air-entrainment performance of a stepped spillway of unique form. The performance was determined using a hydraulic model constructed at a length scale (prototype length/model length) of 24. The new stepped spillway is part of the Gross Reservoir Expansion (GRE) project, which by 2025 is expected to raise the existing Gross Dam about a third of its current height. The stepped spillway will be the tallest stepped spillway in the United States. The model spillway consisted of a chute whose step dimensions, vertical to horizontal, were 0.051 m by 0.025 m, resulting in a chute slope (V:H) of 2.0 and a chute angle of 63.4°. Additionally, the chute conformed, in planform, to the curved planform of raised Gross Dam. At the spillway's crest, that radius of curvature, at model scale, was 22.2 m. The chute width converged by about 20% from the top of the chute to the stilling basin at the base of the chute. The chute's steepness, height, curvature and convergence made the chute's geometry unique among existing stepped spillways. The evaluation involved measurements of air entrainment and flow velocity along the stepped chute, for which the skimming flow regime prevailed for discharge larger than about 9% of the spillway's design discharge. To date, the effect on water flow and air entrainment of chute curvature in stepped spillways had not been investigated. The investigation was facilitated from measurements obtained using a dual-tip conductivity probe, which detected the instantaneous void fraction of the air-water mixture. The probe also enabled measurement of the velocity of the bulked flow along the chute. The study showed that, when the chute conveyed the design discharge (at model scale, 0.347 m3/s), streamwise values of air concentration and flow depth (bulked with entrained air) were basically constant near the bottom of the chute. Additionally, the chute's planform curvature resulted in non-uniform flow across the chute. At the design discharge, and near the bottom of the chute, the flow depth along the chute's centerline was nominally about 30% greater than the flow depth at the sidewall. When the chute's curvature was accounted for, the water surface along the centerline of the chute was approximately level with the water surface near the sidewall. Further, the depth-averaged concentration of entrained air near the bottom of the chute decreased with increasing water discharge. The chute's converging sidewalls mildly affected the flow near the sidewalls, causing slight increases in flow depth and reductions in flow velocity. These changes, though noticeable, were negligible in terms of spillway performance because of their magnitude
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