320 research outputs found

    Injury By Algorithm: A Look Into Google\u27s Liability For Defamatory Autocompleted Search Suggestions

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    Google’s Autocomplete search feature has gained wide popularity as it allows users to perform search queries quickly by suggesting several search terms in real-time as users type a search request in the Google search bar. These generated suggestions change in an algorithmic manner with each additional letter that a user types into Google’s search bar while conducting a search. They are based in part upon predictions made from previous users’ searches as well as several other factors related to the popularity and volume of search queries. As a result, Google claims its lacks complete control over the Autocomplete search results and that it should not be held liable for the search results the algorithms generate while a user conducts a Google search. Google used this defense in several cases that surfaced globally after the search queries generated defamatory suggestions. Accordingly, as detailed in this Article, this point brings about troubling legal issues due to a lack of understanding who is actually responsible for the results generated by Google’s Autocomplete feature. Thus far, given the current state of Internet law, Google falls in a legal safe harbor in avoiding liability for defamatory suggestions. Nonetheless, a better legal framework must be established to determine Google’s true liability in generating defamatory search suggestions through its algorithmic based approach

    Structure of the Natural Transgene PgiC2 in the Common Grass Festuca ovina

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    BACKGROUND: A horizontal gene transfer has brought an active nuclear gene, PgiC2, from a polyploid Poa species (P. palustris or a close relative) into the common grass sheep's fescue (Festuca ovina). The donor and the receptor species are strictly reproductively separated, and PgiC2 occurs in a polymorphic state within F. ovina. The active gene copy is normally closely linked to a very similar pseudogene. METHODOLOGY/PRINCIPAL FINDINGS: By genome walking we have obtained the up- and downstream sequences of PgiC2 and of corresponding genes in the donor and recipient species. Comparisons of these sequences show that the complete upstream region necessary for the gene's expression is included in the transferred segment. About 1 kb upstream of PgiC2 a fragment with transposition associated properties has been found (TAF). It is present in P. palustris and its polyploid relatives, though not at the homologous position, and is absent from many other grasses, including non-transgenic F. ovina plants. It is possible that it is a part of a transposing element involved in getting the gene into a transferring agent and/or into the recipient chromosome. CONCLUSIONS/SIGNIFICANCE: The close similarity of the up- and downstream regions with the corresponding regions in P. palustris excludes all suggestions that PgiC2 is not a HGT but the result of a duplication within the F. ovina lineage. The small size of the genetic material transferred, the complex nature of the PgiC2 locus, and the associated fragment with transposition associated properties suggest that the horizontal transfer occurred via a vector and not via illegitimate pollination

    Persuasive technology in tourism online experiences and implications on tourist buying behaviour

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    Online User Experiences (UXs) act as persuasive technology that can nudge users toward making behaviour change. This makes online UX integral to marketing. The tourism industry relies on UX to attract potential customers. Made up of 80% SMEs, the competition is high, hence the SMEs must deliver robust UXs that capture, persuade and convert users into customers. Tourism, despite being an early adopter of technology lags behind in terms of delivering UXs that meet users’ expectations. Furthermore, scholarly works exploring online UX as a persuasive technology within the tourism SMEs, specifically the day-attraction SMEs segment, are lacking. Using the theoretical framework of the Persuasive Systems Design (PSD) model, this research evaluates day attraction SMEs’ online UXs as persuasive technology. The research uses three mixed-methods to present the service providers’ and the users’ perspectives. The first method is a website content analysis that reviews the persuasive architecture of 102-day attraction websites. The second method uses questionnaires to get insights on tourists’ online usage, motivations, opinions and perceptions of online UX delivered by a single day attraction SME (case study). The third method, an eye tracking experiment is an extension to the questionnaires. The outcomes show that the SMEs’ incorporate persuasive UX elements corresponding to usability, visual aesthetics and credibility, but fail at incorporating strategies to support dialogue. The tourists’ suggest that usability, visual aesthetics and credibility UX elements affect their decision to buy, however, certain strategies that enhance dialogue, such as ability to win rewards, are likely to nudge them toward behaviour change. Furthermore, there appears to be a link between visual aesthetics and perceived usability, and their combined effect on persuasiveness. A final outcome establishes tourist’s website reading patterns, emphasising the placement of call-to-actions within an F-shape region. This research contributes through a customised version of the PSD model applicable for tourism SMEs, delivers empirical evidence suggesting additions to the model and, adds to the overall body of knowledge on tourism online UXs and persuasive technology.University of Plymout

    Health economic evaluation of the Lund Integrated Medicines Management Model (LIMM) in elderly patients admitted to hospital.

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    To evaluate the cost effectiveness of a multidisciplinary team including a pharmacist for systematic medication review and reconciliation from admission to discharge at hospital among elderly patients (the Lund Integrated Medicines Management (LIMM)) in order to reduce drug-related readmissions and outpatient visits

    Evaluation techniques used to evaluate extended reality (XR) head mounted displays (HMDs) used in healthcare: A literature review

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    Extended Reality (XR) Head Mounted Displays (HMDs) are used across various healthcare pathways for staff/student education and training, and for improving patient experiences. As XR HMDs become affordable, accessible and their acceptance increases, it is critical to document the techniques used for evaluating the technology, processes of user engagement and immersion, and outcomes. At present there is limited research on evaluation techniques used to evaluate XR HMDs. This manuscript presents findings from 104 clinical studies that use XR HMDs. The aim of this review is to give the user an insight into the current healthcare XR HMD landscape by presenting the different HMDs used, variety of XR interventions and their applications across medical pathways and intended research outcomes of the XR applications. The manuscript further guides the reader toward a detailed documentation of evaluation techniques used to investigate antecedents and consequences of using XR and delivers a critical discussion and suggestions for improvement of XR evaluation practices. This paper will be of excellent use to clinicians, academics, funding bodies and hospital decision makers who would like suggestions for evaluating the efficacy and effectiveness of XR HMDs. The authors hope to encourage discussions on the importance of improving XR evaluation practices

    Effectiveness and cost effectiveness of pharmacist input at the ward level: a systematic review and meta-analysis

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    Background Pharmacists play important role in ensuring timely care delivery at the ward level. The optimal level of pharmacist input, however, is not clearly defined. Objective To systematically review the evidence that assessed the outcomes of ward pharmacist input for people admitted with acute or emergent illness. Methods The protocol and search strategies were developed with input from clinicians. Medline, EMBASE, Centre for Reviews and Dissemination, The Cochrane Library, NHS Economic Evaluations, Health Technology Assessment and Health Economic Evaluations databases were searched. Inclusion criteria specified the population as adults and young people (age >16 years) who are admitted to hospital with suspected or confirmed acute or emergent illness. Only randomised controlled trials (RCTs) published in English were eligible for inclusion in the effectiveness review. Economic studies were limited to full economic evaluations and comparative cost analysis. Included studies were quality-assessed. Data were extracted, summarised. and meta-analysed, where appropriate. Results Eighteen RCTs and 7 economic studies were included. The RCTs were from USA (n=3), Sweden (n=2), Belgium (n=2), China (n=2), Australia (n=2), Denmark (n=2), Northern Ireland, Norway, Canada, UK and Netherlands. The economic studies were from UK (n=2), Sweden (n=2), Belgium and Netherlands. The results showed that regular pharmacist input was most cost effective. It reduced length-of-stay (mean= -1.74 days [95% CI: -2.76, -0.72], and increased patient and/or carer satisfaction (Relative Risk (RR) =1.49 [1.09, 2.03] at discharge). At £20,000 per quality-adjusted life-year (QALY)-gained cost-effectiveness threshold, it was either cost-saving or cost-effective (Incremental Cost Effectiveness Ratio (ICER) =£632/ QALY-gained). No evidence was found for 7-day pharmacist presence. Conclusions Pharmacist inclusion in the ward multidisciplinary team improves patient safety and satisfaction and is cost-effective when regularly provided throughout the ward stay. Research is needed to determine whether the provision of 7-day service is cost-effective.Peer reviewe

    Ultrasensitive mass sensor fully integrated with complementary metal-oxide-semiconductor circuitry

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    Nanomechanical resonators have been monolithically integrated on preprocessed complementary metal-oxide-semiconductor(CMOS) chips. Fabricatedresonatorsystems have been designed to have resonance frequencies up to 1.5 MHz. The systems have been characterized in ambient air and vacuum conditions and display ultrasensitive mass detection in air. A mass sensitivity of 4ag/Hz has been determined in air by placing a single glycerine drop, having a measured weight of 57 fg, at the apex of a cantilever and subsequently measuring a frequency shift of 14.8 kHz. CMOS integration enables electrostatic excitation, capacitive detection, and amplification of the resonance signal directly on the chip

    Cost-effectiveness Analysis of Rivaroxaban in the Secondary Prevention of Acute Coronary Syndromes in Sweden.

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    BACKGROUND: Worldwide, coronary heart disease accounts for 7 million deaths each year. In Sweden, acute coronary syndrome (ACS) is a leading cause of hospitalization and is responsible for 1 in 4 deaths. OBJECTIVE: The aim of this analysis was to assess the cost-effectiveness of rivaroxaban 2.5 mg twice daily (BID) in combination with standard antiplatelet therapy (ST-APT) versus ST-APT alone, for the secondary prevention of ACS in adult patients with elevated cardiac biomarkers without a prior history of stroke/transient ischemic attack (TIA), from a Swedish societal perspective, based on clinical data from the global ATLAS ACS 2-TIMI 51 trial, literature-based quality of life data and costs sourced from Swedish national databases. METHODS: A Markov model was developed to capture rates of single and multiple myocardial infarction (MI), ischemic and hemorrhagic stroke, thrombolysis in myocardial infarction (TIMI) major, minor, and "requiring medical attention" bleeds, revascularization events, and associated costs and utilities in patients who were stabilized after an initial ACS event. Efficacy and safety data for the first 2 years came from the ATLAS ACS 2-TIMI 51 trial. Long-term probabilities were extrapolated using safety and effectiveness of acetylsalicylic acid data, which was estimated from published literature, assuming constant rates in time. Future cost and effects were discounted at 3.0%. Univariate and probabilistic sensitivity analyses were conducted. RESULTS: In the base case, the use of rivaroxaban 2.5 mg BID was associated with improvements in survival and quality-adjusted life years (QALYs), yielding an incremental cost per QALY of 71,246 Swedish Krona (SEK) (€8045). The outcomes were robust to changes in inputs. The probabilistic sensitivity analysis demonstrated rivaroxaban 2.5 mg BID to be cost-effective in >99.9% of cases, assuming a willingness-to-pay threshold of SEK 500,000 (€56,458). CONCLUSION: Compared with ST-APT alone, the use of rivaroxaban 2.5 mg BID in combination with ST-APT can be considered a cost-effective treatment option for ACS patients with elevated cardiac biomarkers without a prior history of stroke/TIA in Sweden. FUNDING: Bayer Pharma AG

    The cost of monitoring warfarin in patients with chronic atrial fibrillation in primary care in Sweden

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    BACKGROUND: Warfarin is used for the prevention of stroke in chronic atrial fibrillation. The product has a narrow therapeutic index and to obtain treatment success, patients must be maintained within a given therapeutic range (International Normalised Ratio;INR). To ensure a wise allocation of health care resources, scrutiny of costs associated with various treatments is justified. The objective of this study was to estimate the health care cost of INR controls in patients on warfarin treatment with chronic atrial fibrillation in primary care in Sweden. METHODS: Data from various sources were applied in the analysis. Resource consumption was derived from two observational studies based on electronic patient records and two Delphi-panel studies performed in two and three rounds, respectively. Unit costs were taken from official databases and primary health care centres. RESULTS: The mean cost of one INR control was SEK 550. The mean costs of INR controls during the first three months, the first year and during the second year of treatment were SEK 6,811, SEK 16,244 and SEK 8,904 respectively. CONCLUSION: INR controls of patients on warfarin treatment in primary care in Sweden represent a substantial cost to the health care provider and they are particularly costly when undertaken in home care. The cost may however be off-set by the reduced incidence of stroke
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