382 research outputs found

    Nurse Knowledge, Attitude, and Compliance Related to Methicillin Resistant \u3ci\u3eStaphylococcus aureus\u3c/i\u3e

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    The purpose of this study is to determine nurses’ knowledge of Methicillin Resistant Staphylococcus aureus (MRSA), the attitude they have towards patients with MRSA, and how well they comply with MRSA protocols. Forty-six nurses participated in this study. A questionnaire assessing knowledge, attitude, and compliance was distributed via email to graduates of the University of Southern Mississippi. The survey had three sections to assess each variable, with 17 true/false questions about knowledge, 10 questions about attitude, and 6 questions about compliance. Overall, nurses in this study had adequate knowledge of MRSA, aside from overt lack of knowledge regarding antibiotic treatment. Their attitudes were overall positive. While a large majority of nurses complied with hand hygiene and the wearing of gloves, nurses were lacking in compliance with wearing gowns. With these factors considered, nurses need continuing education about MRSA

    Five minutes with Amartya Sen: “I think that Piketty’s conclusions mostly stand”

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    In an interview with British Politics and Policy at LSE’s editor Joel Suss and EUROPP’s editor Stuart Brown, Amartya Sen discusses Thomas Piketty’s recent work, the consequences of widening inequality, and his views on India’s Prime Minister Narendra Modi, whose BJP party won the country’s 2014 general election

    Water Purification by Shock Electrodialysis: Deionization, Filtration, Separation, and Disinfection

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    The development of energy and infrastructure efficient water purification systems are among the most critical engineering challenges facing our society. Water purification is often a multi-step process involving filtration, desalination, and disinfection of a feedstream. Shock electrodialysis (shock ED) is a newly developed technique for water desalination, leveraging the formation of ion concentration polarization (ICP) zones and deionization shock waves in microscale pores near to an ion selective element. While shock ED has been demonstrated as an effective water desalination tool, we here present evidence of other simultaneous functionalities. We show that, unlike electrodialysis, shock ED can thoroughly filter micron-scale particles and aggregates of nanoparticles present in the feedwater. We also demonstrate that shock ED can enable disinfection of feedwaters, as approximately 99%99\% of viable bacteria (here \textit{E. coli}) in the inflow were killed or removed by our prototype. Shock ED also separates positive from negative particles, contrary to claims that ICP acts as a virtual barrier for all charged particles. By combining these functionalities (filtration, separation and disinfection) with deionization, shock ED has the potential to enable more compact and efficient water purification systems

    Five minutes with George Galloway: “The West is guilty of deep, laughable hypocrisy over Crimea”

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    George Galloway is a long-time anti-war campaigner and Member of the UK Parliament for Bradford West, having won a 2012 by-election as a member of the Respect Party. In an interview with Stuart Brown and Joel Suss, editors of EUROPP and the British Politics and Policy at LSE blog, he discusses events in Ukraine, the future of UK foreign policy, the Snowden revelations, and Scottish independence

    Five minutes with Nigel Farage: “The European Parliament elections may ultimately decide whether we get a referendum on EU membership”

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    The United Kingdom Independence Party (UKIP) has campaigned for the UK’s exit from the EU since the early 1990s. In an interview with EUROPP’s editor Stuart Brown and British Politics and Policy at LSE’s editor Joel Suss, UKIP leader Nigel Farage discusses the importance of the upcoming European Parliament elections in May, the party’s future prospects at the 2015 UK general election, and whether Scottish independence would help UKIP’s electoral chances

    Performance Metrics for the Objective Assessment of Capacitive Deionization Systems

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    In the growing field of capacitive deionization (CDI), a number of performance metrics have emerged to describe the desalination process. Unfortunately, the separation conditions under which these metrics are measured are often not specified, resulting in optimal performance at minimal removal. Here we outline a system of performance metrics and reporting conditions that resolves this issue. Our proposed system is based on volumetric energy consumption (Wh/m3^3) and throughput productivity (L/h/m2^2) reported for a specific average concentration reduction, water recovery, and feed salinity. To facilitate and rationalize comparisons between devices, materials, and operation modes, we propose a nominal standard testing condition of removing 5 mM from a 20 mM NaCl feed solution at 50% water recovery for CDI research. Using this separation, we compare the desalination performance of a flow-through electrode (fte-CDI) cell and a flow between membrane (fb-MCDI) device, showing how significantly different systems can be compared in terms of generally desirable desalination characteristics. In general, we find that performance analysis must be considered carefully so to not allow for ambiguous separation conditions or the maximization of one metric at the expense of another. Additionally, for context we discuss a number of important underlying performance indicators and cell characteristics that are not performance measures in and of themselves but can be examined to better understand differences in performance

    Chronic dermatomycoses of the foot as risk factors for acute bacterial cellulitis of the leg: A case-control study

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    Objective: To assess the role of foot dermatomycosis ( tinea pedis and onychomycosis) and other candidate risk factors in the development of acute bacterial cellulitis of the leg. Methods: A case-control study, including 243 patients ( cases) with acute bacterial cellulitis of the leg and 467 controls, 2 per case, individually matched for gender, age (+/-5 years), hospital and admission date (+/-2 months). Results: Overall, mycology-proven foot dermatomycosis was a significant risk factor for acute bacterial cellulitis (odds ratio, OR: 2.4; p < 0.001), as were tinea pedis interdigitalis (OR: 3.2; p < 0.001), tinea pedis plantaris (OR: 1.7; p = 0.005) and onychomycosis (OR: 2.2; p < 0.001) individually. Other risk factors included: disruption of the cutaneous barrier, history of bacterial cellulitis, chronic venous insufficiency and leg oedema. Conclusions: Tinea pedis and onychomycosis were found to be significant risk factors for acute bacterial cellulitis of the leg that are readily amenable to treatment with effective pharmacological therapy. Copyright (C) 2004 S. Karger AG, Basel

    The effect of time constraint on anticipation, decision making, and option generation in complex and dynamic environments

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    Researchers interested in performance in complex and dynamic situations have focused on how individuals predict their opponent(s) potential courses of action (i.e., during assessment) and generate potential options about how to respond (i.e., during intervention). When generating predictive options, previous research supports the use of cognitive mechanisms that are consistent with long-term working memory (LTWM) theory (Ericsson and Kintsch in Phychol Rev 102(2):211–245, 1995; Ward et al. in J Cogn Eng Decis Mak 7:231–254, 2013). However, when generating options about how to respond, the extant research supports the use of the take-the-first (TTF) heuristic (Johnson and Raab in Organ Behav Hum Decis Process 91:215–229, 2003). While these models provide possible explanations about how options are generated in situ, often under time pressure, few researchers have tested the claims of these models experimentally by explicitly manipulating time pressure. The current research investigates the effect of time constraint on option-generation behavior during the assessment and intervention phases of decision making by employing a modified version of an established option-generation task in soccer. The results provide additional support for the use of LTWM mechanisms during assessment across both time conditions. During the intervention phase, option-generation behavior appeared consistent with TTF, but only in the non-time-constrained condition. Counter to our expectations, the implementation of time constraint resulted in a shift toward the use of LTWM-type mechanisms during the intervention phase. Modifications to the cognitive-process level descriptions of decision making during intervention are proposed, and implications for training during both phases of decision making are discussed

    Capacitive Deionization -- defining a class of desalination technologies

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    Over the past decade, capacitive deionization (CDI) has realized a surge in attention in the field of water desalination and can now be considered as an important technology class, along with reverse osmosis and electrodialysis. While many of the recently developed technologies no longer use a mechanism that follows the strict definition of the term "capacitive", these methods nevertheless share many common elements that encourage treating them with similar metrics and analyses. Specifically, they all involve electrically driven removal of ions from a feed stream, storage in an electrode (i.e., ion electrosorption) and release, in charge/discharge cycles. Grouping all these methods in the technology class of CDI makes it possible to treat evolving new technologies in standardized terms and compare them to other technologies in the same class

    Electrochemical testing of carbon materials as bromine electrodes for the hydrogen-bromine redox flow battery

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    This is the final version. Available on open access from MDPI via the DOI in this recordHydrogen-bromine (H2-Br2) redox flow batteries (RFBs) have gained a lot of interest due to their advantages in mitigating the performance shortcomings of conventional zinc-bromine and vanadium flow batteries. Various carbon materials have been tested in H2-Br2 RFBs as bromine electrodes. However, a comparative study between different carbon materials has not been reported in literature. This work reports for the first time an evaluation of carbon papers, felt and cloth in a three-electrode half-cell setup as potential bromine electrodes, in pristine and thermally treated state. A systematic evaluation was performed by comparing the surface morphologies, kinetic parameters, polarisation curves and stability tests of different carbon electrodes. Thermally treated graphite felt electrode demonstrated the best electrochemical performance as bromine electrode owing to its improved surface area, hydrophilicity and intrinsic activity. Further in-depth studies will shed important insights which will help understand the electrode characteristics for future bromine battery design. The current study will assist in evaluating the performance of upcoming novel electrode materials in three electrode assembly.European Union Horizon 2020Engineering and Physical Sciences Research Council (EPSRC)Royal Academy of Engineering (RAE
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