334 research outputs found

    Teaching Strategies for Atypical Presentation of Illness in Older Adults

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    Atypical presentation of illness is one of those phenomena where “seeing is believing”. Expert geriatric nurses and clinicians know all to well the early signs and symptoms of this frequent masquerader of bacterial infections, pain, acute myocardial infarction, heart failure or other serious medical ailments in older adults. Students however, as novices to clinical practice, require interactive learning approaches to reflect on the client’s illness presentations, help with developing the necessary skills to analyze and synthesize clinically relevant data, and to witness resolution of an atypical presentation when found and treated. We discuss various learner-centered, interactive approaches to teach students how to recognize an atypical presentation of illness using a real-life clinical case. Outlined are teaching strategies for faculty, drawn on visual, auditory, reading and kinesthetic modes of student learning. Use of the senses to teach nurses about care of patient’s is not entirely new or innovative, as reflected on by Florence Nightingale’s (1846) earliest writings of the "rules of nursing".Peer reviewe

    Was the Deflation of the Depression Anticipated?: An Inference Using Real-time Data

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    Preprint of article published as: Gabriel Mathy & Herman Stekler (2017) Was the deflation of the depression anticipated? An inference using real-time data, Journal of Economic Methodology, DOI: 10.1080/1350178X.2017.1407437Futures prices were well above spot prices for most commodities during most of the Great Depression in the US; evidently, the spectacular declines in agricultural prices caught many people by surprise. Based on the historical correlations between commodity prices and consumer prices, commodity markets anticipated stable consumer prices during the first year of the Great Depression. The dramatic drop in nominal Treasury bill yields thus should be read as a drop in ex ante real interest rates. In the 2nd and 3rd years of the Great Depression, people anticipated drops in consumer prices about half as severe as were actually experienced. This perception would certainly discourage new borrowing and investing. On the other hand, this would also be an environment in which bankruptcy risk would continually worsen, particularly on outstanding loans of more than one year's duration. Both factors are likely to have contributed to the severity of the Great Depression

    Multistatic ISAR autofocussing using image contrast optimization

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    In this paper we present a multistatic autofocussing approach, based on the optimization of the image contrasts in multiple received images. Other than monostatic algorithms, this method can not only estimate the range history of a target, but its full trajectory. Coherency of the received signal in different receivers is not required. The method is validated with experimental results.</p

    Climate policies : what if emerging country baseline were not so optimistic? - a case study related to India

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    One of the current main objective of international negotiations on climate change aims at enlarging the coordination regime to developing countries (DCs), and particularly to emerging countries. The international coordination system built at the Kyoto Conference relies on a coordination system based on a purely climate centric approach which shows irreconcilable contradictions between climate and development issues. This article aims at evaluatingpossible pathways implementing synergies between climate policies and development policies in order to create an incentive towards DCs to take part in climate mitigation. We focus on an illustrative example on India.When most reference scenarios postulate rapid energy decoupling of the GDP and rapid decarbonisation of DCs economies in the future, this article elaborates, with the IMACLIM-R model, a baseline taking into account weaknesses and current disequilibria of the Indian technico-economic system such as the high dependency on imported energy, or the structural shortage in electricity. We show why a purely climate centric approach (quota allocation), adopted to commit with a world objective of tabilization to 550ppm, induce very high transition costs in spite of significant financial transfers. On the contrary, a strategy based on the research of synergies between the reduction of these disequilibria, and the mitigation of GHG emissions is investigated in the power sector, which presents the biggest potential of no-regret measures. This permits to drop down transition costs applied to the Indianeconomy by improving the overall energy efficiency. An economic and environmental evaluation of this alternative scenario is lead.India, domestic policies and measures, climate policies, long term scenarios, international egotiations, power sector, climate regime, policies and measures, energy efficiency, realistic baselines, peak-oil

    Improving the quality of geriatric nursing care: Enduring outcomes from the Geriatric Nursing Education Consortium

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    The nation's aging demographics, few nursing faculty with gero-expertise, and insufficient geriatric content in nursing programs has created a national imperative to increase the supply of nurses qualified to provide care for older adults. GNEC, the Geriatric Nursing Education Consortium, a collaborative program of the John A. Hartford Foundation, the American Association of Colleges of Nursing, and the NYU Nursing Hartford Institute for Geriatric Nursing was initiated to provide faculty with the necessary skills, knowledge, and competency to implement sustainable curricular innovations in care of older adults. This article describes the background, processes, and development of GNEC evidence-based curricular materials, and the dissemination of these materials through six, two and a half day national Faculty Development Institutes (FDIs). Eight hundred eight faculty, representing 418 schools of nursing, attended an FDI. A total of 479 individuals responded to an evaluation conducted by Baruch College that showed faculty feasibility to incorporate GNEC content into courses, confidence in teaching and incorporating content, and overall high rating of the GNEC materials. The impact of GNEC is discussed along with effects on faculty participants over two years. Administrative and faculty level recommendations to sustain and expand GNEC are highlighted.Peer reviewe

    Target Motion Estimation and Imaging with a Multistatic ISAR System

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    In this article we present the realization of an experimental multistatic inverse synthetic aperture radar (M-ISAR) system. The primary focus of this work is to utilize the multistatic geometry to estimate the motion of a maneuvering ground target. We propose solutions to all experimental challenges that go along with such a setup, including hardware development, synchronization, and signal processing. Results from real data show that images of reasonable quality can be obtained without making strong assumptions on the target trajectory. On the basis of these results, benefits and drawbacks of the multilateration approach to motion estimation are discussed, critical elements of the processing chain are highlighted, and phenomenological experience is shared.</p

    HOW WAS THE QUANTITATIVE EASING PROGRAM OF THE 1930S UNWOUND?

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    Outside of the recent past, excess reserves have only concerned policymakers in one other period: The Great Depression of the 1930s. This historical episode thus provides the only guidance about the Fed's current predicament of how to unwind from the extensive Quantitative Easing program. Excess reserves in the 1930s were never actively unwound through a reduction in the monetary base. Nominal economic growth swelled required reserves while an exogenous reduction in monetary gold inflows due to war embargoes in Europe allowed banks to naturally reduce their excess reserves. Excess reserves fell rapidly in 1941 and would have unwound fully even without the entry of the United States into World War II. As such, policy tightening was at no point necessary and likely was even responsible for the 1937-1938 recession.Department of Economics, Working Paper Series, no. 2016-01. 40 pages

    Operating Channel Validation: Preventing Multi-Channel Man-in-the-Middle Attacks Against Protected Wi-Fi Networks

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    © 2018 Copyright held by the owner/author(s). Publication rights licensed to the Association for Computing Machinery. We present a backwards compatible extension to the 802.11 standard to prevent multi-channel man-in-the-middle attacks. This extension authenticates parameters that define the currently in-use channel. Recent attacks against WPA2, such as most key reinstallation attacks, require a man-in-the-middle (MitM) position between the client and Access Point (AP). In particular, they all employ a multichannel technique to obtain the MitM position. In this technique, the adversary acts as a legitimate AP by copying all frames sent by a real AP to a different channel. At the same time, the adversary acts as a legitimate client by copying all frames sent by the client to the channel of the real AP. When copying frames between both channels, the adversary can reliably manipulate (encrypted) traffic. We propose an extension to the 802.11 standard to prevent such multichannel MitM attacks, making exploitation of future weaknesses in protected Wi-Fi networks harder, to practically infeasible. Additionally, we propose a method to securely verify dynamic channel switches that may occur while already connected to a network.sponsorship: This research is partially funded by the Research Fund KU Leuven. Mathy Vanhoef holds a Postdoctoral fellowship from the Research Foundation Flanders (FWO). (Research Fund KU Leuven, Research Foundation Flanders (FWO))status: Publishe

    2014-06 How Much Does Political Uncertainty Matter?: The Case of Louisiana under Huey Long

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    We study the role of political uncertainty on economic outcomes using the case of Huey Long’s tenure as governor of Louisiana during the Great Depression. We construct two wellestablished measures of uncertainty specifically for Louisiana using primary sources: stock price volatility and newspaper mentions of uncertainty. Combining these uncertainty measures with employment data from the Census of Manufactures, we attempt to identify the effects of political uncertainty using the state of Mississippi as a control group. We find limited evidence for the significance of political uncertainty in a standard differences-in-differences framework, even when restricting our attention to border counties. Finally, we conduct an event study on the unexpected assassination of Long in September 1935, and again we find no effect on employment. We conclude that whatever political uncertainty was attributable to Huey Long mattered very little for economic outcomes.Working Papers 2014-0
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