975 research outputs found

    Health informatics in UK Medical Education: an online survey of current practice

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    OBJECTIVE: Health informatics has growing importance in clinical practice with successive General Medical Council recommendations. However, prior data suggest that undergraduate medical education largely neglects this area. An up-to-date, UK-wide view of health informatics training in medical schools is required. DESIGN: An online survey was developed using current guidance and recommendations of UK professional bodies. PARTICIPANTS AND SETTING: Senior academic staff and health informatics educators at all 34 UK medical schools were invited to complete the survey. MAIN OUTCOME AND MEASURES: Quantitative and qualitative data regarding health informatics in the undergraduate medical curriculum. RESULTS: A total of 26/34 (76%) of UK medical schools responded and 23 provided full information. Aspects most frequently mentioned were literature searching and research governance. Seventeen per cent of respondents felt there was little or no HI training, although clinical record keeping was addressed by all medical schools. Pedagogies used to teach health informatics were self-directed learning (78%) to lecture based (70%), seminars (70%), informal teaching in clinical settings (57%) and problem-based learning (22%). Health informatics was usually integrated vertically and horizontally across the curriculum (76%). Assessment and updates of the health informatics curriculum are limited (57 and 41%, respectively). Thirty-two per cent of respondents reported a low level of confidence among students to use health informatics as doctors. In the most up-to-date survey of health informatics teaching in UK medical schools, there are three major findings. First, the proportion of health informatics in the medical undergraduate curriculum is low. Second, there was variation in content, pedagogy and timing across medical schools. Third, health informatics is rarely assessed and course content is not regularly updated. CONCLUSIONS: There is a role for national guidelines and further research in this area of the curriculum which is rapidly gaining in prominence

    The ecomics of ecosystems and biodiversity: scoping the scale

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    The G8 decided in March 2007 to initiate a “Review on the economics of biodiversity loss”, in the so called Potsdam Initiative: 'In a global study we will initiate the process of analysing the global economic benefit of biological diversity, the costs of the loss of biodiversity and the failure to take protective measures versus the costs of effective conservation. The study is being supported by the European Commission (together with the European Environmental Agency and in cooperation with the German Government. “The objective of the current study is to provide a coherent overview of existing scientific knowledge upon which to base the economics of the Review, and to propose a coherent global programme of scientific work, both for Phase 2 (consolidation) and to enable more robust future iterations of the Review beyond 2010.

    Aspects of Information Flow

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    Along with our colleagues at the Oregon Graduate Institute and Georgia Institute of Technology, we have recently been experimenting with real-rate systems, that is, systems that are required to move data from one place to another at defined rates, such as 30 items per second. Audio conferencing or streaming video systems are typical: they are required to deliver video or audio frames from a source (a server or file system) in one place to a sink (a display or a sound generator) in another; the frames must arrive periodically, with constrained latency and jitter. We have successfully built such systems (for example, see reference [Walpole 1997]), but they are not simple to design or construct. Our current research seeks to capture our knowledge of this domain into an information flow framework, called InfoPipes. The goal of Infopipes is to make the task of building a system that moves data from one part of the Internet to another as simple as connecting pre-defined components such as buffers, pipes, filters and meters. The latency, jitter and data-rate properties of the resulting pipeline should follow by calculation from the properties of the components

    Thread Transparency in Information Flow Middleware

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    Existing middleware is based on control-flow centric interaction models such as remote method invocations, poorly matching the structure of applications that process continuous information flows. Difficulties cultiesin building this kind of application on conventional platforms include flow-specific concurrency and timing requirements, necessitating explicit management of threads, synchronization, and timing by the application programmer. We propose Infopipes as a high-level abstraction for information flows, and we are developing a middleware framework that supports this abstraction. Infopipes transparently handle complexities associated with control flow and multi-threading. From high-level configuration descriptions the platform determines what parts of a pipeline require separate threads or co-routines and handles synchronization transparently to the application programmer. Independently of the actual activity of pipeline components, they may be programmed like passive or active objects. In this way, the most appropriate programming model can be chosen for a given task and existing code can be reused regardless of its activity model

    Unbound states of 32Cl and the 31S(p,\gamma)32Cl reaction rate

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    The 31S(p,\gamma)32Cl reaction is expected to provide the dominant break-out path from the SiP cycle in novae and is important for understanding enrichments of sulfur observed in some nova ejecta. We studied the 32S(3He,t)32Cl charge-exchange reaction to determine properties of proton-unbound levels in 32Cl that have previously contributed significant uncertainties to the 31S(p,\gamma)32Cl reaction rate. Measured triton magnetic rigidities were used to determine excitation energies in 32Cl. Proton-branching ratios were obtained by detecting decay protons from unbound 32Cl states in coincidence with tritons. An improved 31S(p,\gamma)32Cl reaction rate was calculated including robust statistical and systematic uncertainties

    Location of Plastic Hinges in Axially Loaded Steel Members

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    New Zealand and Australian steel structure design standards contain equations to encourage yielding at the ends of steel members rather than along their lengths. This paper evaluates the accuracy of these equations using a commercially available computer program as well as an analytical procedure. The analytical procedure considers non-linear geometric effects and material effects of the member stiffness by considering stability functions in conjunction with residual stress effects. New equations to prevent yielding away from the member ends, which are less conservative than the current code equations, are developed. Simplifications of these equations being considered for adoption into the New Zealand steel structure design standard are described

    Customizable Operating Systems

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    A customizable operating system is one that can adapt to improve its functionality or performance. The need for customizable and application-specific operating systems has been recognized for many years, but they have yet to appear in the commercial market. This paper explores the notion of operating system customizability and examines the limits of existing approaches. The paper begins by surveying system structuring approaches for the safe and efficient execution of customizable operating systems. Then it discusses the burden that existing approaches impose on application software, and explores techniques for reducing this burden. Finally, support for customizability in the Synthetix project is described and illustrated through two examples: a dynamically specialized file system read call, and an adaptive Internet-based MPEG video player

    Measurements of cosmic-ray energy spectra with the 2nd CREAM flight

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    During its second Antarctic flight, the CREAM (Cosmic Ray Energetics And Mass) balloon experiment collected data for 28 days, measuring the charge and the energy of cosmic rays (CR) with a redundant system of particle identification and an imaging thin ionization calorimeter. Preliminary direct measurements of the absolute intensities of individual CR nuclei are reported in the elemental range from carbon to iron at very high energy.Comment: 4 pages, 3 figures, presented at XV International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2008

    Energy spectra of cosmic-ray nuclei at high energies

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    We present new measurements of the energy spectra of cosmic-ray (CR) nuclei from the second flight of the balloon-borne experiment Cosmic Ray Energetics And Mass (CREAM). The instrument included different particle detectors to provide redundant charge identification and measure the energy of CRs up to several hundred TeV. The measured individual energy spectra of C, O, Ne, Mg, Si, and Fe are presented up to 1014\sim 10^{14} eV. The spectral shape looks nearly the same for these primary elements and it can be fitted to an E2.66±0.04E^{-2.66 \pm 0.04} power law in energy. Moreover, a new measurement of the absolute intensity of nitrogen in the 100-800 GeV/nn energy range with smaller errors than previous observations, clearly indicates a hardening of the spectrum at high energy. The relative abundance of N/O at the top of the atmosphere is measured to be 0.080±0.0250.080 \pm 0.025 (stat.)±0.025 \pm 0.025 (sys.) at \sim 800 GeV/nn, in good agreement with a recent result from the first CREAM flight.Comment: 32 pages, 10 figures. Accepted for publication in Astrophysical Journa
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