1,086 research outputs found

    Digital service analysis and design : the role of process modelling

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    Digital libraries are evolving from content-centric systems to person-centric systems. Emergent services are interactive and multidimensional, associated systems multi-tiered and distributed. A holistic perspective is essential to their effective analysis and design, for beyond technical considerations, there are complex social, economic, organisational, and ergonomic requirements and relationships to consider. Such a perspective cannot be gained without direct user involvement, yet evidence suggests that development teams may be failing to effectively engage with users, relying on requirements derived from anecdotal evidence or prior experience. In such instances, there is a risk that services might be well designed, but functionally useless. This paper highlights the role of process modelling in gaining such perspective. Process modelling challenges, approaches, and success factors are considered, discussed with reference to a recent evaluation of usability and usefulness of a UK National Health Service (NHS) digital library. Reflecting on lessons learnt, recommendations are made regarding appropriate process modelling approach and application

    Domino: exploring mobile collaborative software adaptation

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    Social Proximity Applications (SPAs) are a promising new area for ubicomp software that exploits the everyday changes in the proximity of mobile users. While a number of applications facilitate simple file sharing between co–present users, this paper explores opportunities for recommending and sharing software between users. We describe an architecture that allows the recommendation of new system components from systems with similar histories of use. Software components and usage histories are exchanged between mobile users who are in proximity with each other. We apply this architecture in a mobile strategy game in which players adapt and upgrade their game using components from other players, progressing through the game through sharing tools and history. More broadly, we discuss the general application of this technique as well as the security and privacy challenges to such an approach

    Intensive Care Admissions: Predicting Palliative Care Needs in the First 24 Hours

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    PURPOSE: The purpose of this retrospective analysis was to determine the proportion of intensive care admissions that required palliative care services during the same admission assessed by an investigator-developed palliative care screening tool. This study also analyzed the screening tool for the number of criteria producing the highest sensitivity and specificity for a palliative care consult occurring during the same hospital stay. METHODS: Retrospective data collection and analysis were performed by randomly selecting 110 patients records from a report obtained through the electronic health record, Epic. The sample was drawn from patients admitted to a medicine intensive care unit (2A) and neurology/neurosurgical intensive care unit (2B) at Baptist Health in Lexington Kentucky, a community-based tertiary care hospital, between April and August 2017. RESULTS: Screening tool items capturing more than one trigger point produced the highest sensitivity and specificity under a ROC curve (.7/.422) resulting in a palliative care consultation during the same hospital stay. The utilization of palliative consultations when criteria on the tool was triggered was low at 20/79 (25.3%) patients. A palliative consult, when indicated, was carried out a median of 5.5 days after the initial admission to the intensive care unit. Missed opportunities for palliative consults were discovered with 8 out of the remaining 59 patients who warranted, but did not receive a consult, died since the reviewed ICU admission. CONCLUSION: Palliative care consultations within the first twenty-four hours of an intensive care admission are needed but carried out at a low rate. The investigator-developed screening tool was effective in identifying the need for palliative care consultation. Palliative care screening tools need further validity testing as no standardize tool currently exists. Customizing tools for individual facility use is recommended and additional criteria should be considered

    The Experiences and Treatment of Veterans Living with PTSD

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    The purpose of this project was to create better access to an existing online community resource guide, and produce supplemental materials highlighting coping strategies, to enable counselors at the Tacoma Vet Center (TVC) to educate their clients, (veterans with Posttraumatic Stress Disorder [PTSD]) about resources and strategies that would empower them to participate fully in all areas of occupation and to increase their quality of life. This project included a document with hyperlinks to online saved searches, an instruction manual for navigating and customizing the saved searches, and a workbook of information, activities and strategies for clients to utilize. The counselors at TVC used the combination of the hyperlinks to saved searches and the instruction manual to find community resources for their clients, and found the workbook useful in helping their clients learn strategies to cope with symptoms of PTSD

    Loyalty Programmes: Practices, Avenues and Challenges

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    <div align=justify>Complexity of modern business requires managers to strive for innovative strategies to acquire and retain customers in any product market field. As acquiring new customers is getting costlier day by day, business organizations have offered continuity/loyalty programmes to retain/reward existing customers and maintain relationships. The premise of CRM is that once a customer is locked in, it will be advantageous to both the organization as well as customer to maintain relationships and would be a win-win situation for both. Consumers find it beneficial to join such programmes to earn rewards for staying loyal. Through loyalty programmes, firms can potentially gain more repeat business, get opportunity to cross-sell and obtain rich customer data for future CRM efforts (Yuping Liu, 2007). This paper, exploratory in nature, attempts to provide a conceptual overview of Loyalty in organized retail sector, outlines practices of grocery retail outlets in Ahmedabad, the largest city in the state of Gujarat and the seventh-largest urban agglomeration in India, with a population of 56 lakhs (5.6 million). It also throws light on consumer expectations, perceptions and problems faced through indepth exploration. Based on literature review and environment in India, an emerging economy, it attempts to predict future of such programmes specifically in Indian organised retail sector and discusses managerial challenges of managing loyalty programmes and provides agenda for future research directions.</div>

    SOFTWARE DEFINED CUSTOMIZATION OF NETWORK PROTOCOLS WITH LAYER 4.5

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    The rise of software defined networks, programmable data planes, and host level kernel programmability gives rise to highly specialized enterprise networks. One form of network specialization is protocol customization, which traditionally extends existing protocols with additional features, primarily for security and performance reasons. However, the current methodologies to deploy protocol customizations lack the agility to support rapidly changing customization needs. This dissertation designs and evaluates the first software-defined customization architecture capable of distributing and continuously managing protocol customizations within enterprise or datacenter networks. Our unifying architecture is capable of performing per-process customizations, embedding per-network security controls, and aiding the traversal of customized application flows through otherwise problematic middlebox devices. Through the design and evaluation of the customization architecture, we further our understanding of, and provide robust support for, application transparent protocol customizations. We conclude with the first ever demonstration of active application flow "hot-swapping" of protocol customizations, a capability not currently supported in operational networks.Office of Naval Research, Arlington, VA 22203Lieutenant Commander, United States NavyApproved for public release. Distribution is unlimited

    Climate–ecosystem modelling made easy: The Land Sites Platform

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    Dynamic Global Vegetation Models (DGVMs) provide a state-of-the-art process-based approach to study the complex interplay between vegetation and its physical environment. For example, they help to predict how terrestrial plants interact with climate, soils, disturbance and competition for resources. We argue that there is untapped potential for the use of DGVMs in ecological and ecophysiological research. One fundamental barrier to realize this potential is that many researchers with relevant expertize (ecology, plant physiology, soil science, etc.) lack access to the technical resources or awareness of the research potential of DGVMs. Here we present the Land Sites Platform (LSP): new software that facilitates single-site simulations with the Functionally Assembled Terrestrial Ecosystem Simulator, an advanced DGVM coupled with the Community Land Model. The LSP includes a Graphical User Interface and an Application Programming Interface, which improve the user experience and lower the technical thresholds for installing these model architectures and setting up model experiments. The software is distributed via version-controlled containers; researchers and students can run simulations directly on their personal computers or servers, with relatively low hardware requirements, and on different operating systems. Version 1.0 of the LSP supports site-level simulations. We provide input data for 20 established geo-ecological observation sites in Norway and workflows to add generic sites from public global datasets. The LSP makes standard model experiments with default data easily achievable (e.g., for educational or introductory purposes) while retaining flexibility for more advanced scientific uses. We further provide tools to visualize the model input and output, including simple examples to relate predictions to local observations. The LSP improves access to land surface and DGVM modelling as a building block of community cyberinfrastructure that may inspire new avenues for mechanistic ecosystem research across disciplines.publishedVersio
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