2,280 research outputs found

    Electrical noise reduction techniques contributing to improved data quality at the National Transonic Facility

    Get PDF
    In initial use, the high-speed digital data acquisition systems at Langley Research Center's National Transonic Facility produced data containing unacceptably high noise levels. Described is a process whereby the contributing noise sources were identified and eliminated. The effects of 60 Hz power, system grounding, EMI/RFI, and other problems are discussed and the corrective action taken is outlined. The overall effort resulted in an improvement of greater than 5:1 in system performance. Although the report describes a system specifically used for wind tunnel data acquisition, the corrective techniques employed are generally applicable to large scale high-speed data systems where signal resolution in the low microvolts range is important

    Humanitarianism in English poetry from Thomson to Wordsworth

    Get PDF

    La producción de tejidos de lana de "fácil cuidado"

    Get PDF
    En los últimos 10 ó 12 años la lana ha perdido muchos mercados. Parte de esta pérdida, al menos, puede ser atribuída a las características de «fácil cuidado» de los tejidos fabricados con fibras sintéticas y mezclas de fibras sintéticas con lana, que han reemplazado a los tejidos 100 % lana en muchos campos, principalmente en géneros de punto, tapicerías y trajes relativamente ligeros. El trabajo de los institutos de investigación lanera y del «Secretariado Internacional de la lana» se ha basado por tanto, no solamente en encontrar nuevos métodos de conferir el «fácil cuidado» a tejidos 100 % lana, sino en introducir lo más rápidamente posible en la industria los nuevos procesos en la forma más simple y barata. Los problemas inmediatos que se han afrontado ha cid@: encontrar métodos sencillos y simples de acabados resistentes a la polilla y al encogimiento; encontrar métodos, que pudiesen ser usados comercialmente para el fijado permanente de pantalones de hombre y plisado permanente de faldas de señora; y encontrar métodos de tratar tejidos de lana que permitiesen ser lavados sin requerir planchado después de secarlos:al aire o por secado forzado.Peer Reviewe

    Residential Summer Camp Counselor Retention Rates Implications and Recommendations for Boys & Girls Clubs of Metro-Denver’s Gates Camp

    Get PDF
    Boys & Girls Clubs of Metro Denver’s Gates Camp is a residential summer camp in Ward, Colorado. There has been an observed and verified trend of a lack of returning staff, despite staff members’ expressed positive experiences as a camp counselor. Returning staff improve the quality of programming for youth, by building upon their skills gained the previous summer and sharing their knowledge of the camp environment, culture and traditions with new staff. Through the use of a survey, completed by counselors who worked at Gates Camp between the summers of 2011 and 2016, trends as to why individuals choose to not return to camp emerged. Recommendations were made in accordance with such themes, and included: the addition of leadership activities for returning staff members, increasing the number of new hires in the 19 to 20 year old age bracket, and continuing to implement and expand upon staff culture building activities so as to capitalize on the positive, strong community that exists

    Investment Company Act of 1940: Why the Time Has Come to Revive Section 3(b)(1)

    Get PDF

    Study protocol for a randomised controlled trial evaluating the effect of prenatal omega-3 LCPUFA supplementation to reduce the incidence of preterm birth: The ORIP trial

    Get PDF
    Introduction: Preterm birth accounts for more than 85% of all perinatal complications and deaths. Seventy-five per cent of early preterm births (EPTBs) occur spontaneously and without identifiable risk factors. The need for a broadly applicable, effective strategy for primary prevention is paramount. Secondary outcomes from the docosahexaenoic acid (DHA) to Optimise Mother Infant Outcome trial showed that maternal supplementation until delivery with omega-3 (ω-3) long chain polyunsaturated fatty acid (LCPUFA), predominantly as DHA, resulted in a 50% reduction in the incidence of EPTB and an increase in the incidence of post-term induction or post-term prelabour caesarean section due to extended gestation. We aim to determine the effectiveness of supplementing the maternal diet with ω-3 LCPUFA until 34 weeks’ gestation on the incidence of EPTB. Methods and analysis: This is a multicentre, parallel group, randomised, blinded and controlled trial. Women less than 20 weeks’ gestation with a singleton or multiple pregnancy and able to give informed consent are eligible to participate. Women will be randomised to receive high DHA fish oil capsules or control capsules without DHA. Capsules will be taken from enrolment until 34 weeks’ gestation. The primary outcome is the incidence of EPTB, defined as delivery before 34 completed weeks’ gestation. Key secondary outcomes include length of gestation, incidence of post-term induction or prelabour caesarean section and spontaneous EPTB. The target sample size is 5540 women (2770 per group), which will provide 85% power to detect an absolute reduction in the incidence of preterm birth of 1.16% (from 2.45% to 1.29%) between the DHA and control group (two sided α=0.05). The primary analysis will be based on the intention-to-treat principle. Trial registration number: Australia and New Zealand Clinical Trial Registry Number: 2613001142729; Pre-results

    Towards a dialogical ethics of interprofessionalism

    Get PDF
    Contemporary medical practice brings a diverse range of professions and disciplines together in greater and closer contact. This situation of increasing complexity and changing professional roles gives rise to multifaceted ethical dilemmas and theoretical and practical concerns. In this essay we argue that for multidisciplinary relationships to be facilitated and to progress towards interdisciplinary teamwork, moral agents have to go beyond orthodox ethical systems and appeal to normative theory. We will argue that conceptualising ethics as a shared social practice may provide a useful starting point. This dialogic approach places greater emphasis on open deliberation and the articulation, negotiation, exploration and generation of new ethical perspectives in the here and now of clinical practice

    Post-Collisional Reorganisation of the Eastern Alps in 4D – Crust and Mantle Structure

    Get PDF
    The Eastern Alps were affected by a profound post-collisional tectonic reorganisation in Neogene time, featuring indentation by the Adriatic upper plate, rapid uplift and filling of the eastern Molasse Basin, exhumation and eastward orogen-parallel transport of Paleogene metamorphic units in the orogenic core, and a shift from northward thrust propagation in the European plate to southward propagation in the Adriatic plate. We test the idea that these events were triggered by slab detachment by reconstructing the indentation process. This involves sequentially restoring N-S and E-W cross-sections of the orogenic wedge and correcting for out-of-section orogen-parallel transport with a map-view reconstruction. We propose two phases of indentation: Initially (23 and 14 Ma), the whole Adriatic crust acted as an indenter. Its northward motion was accommodated by upright folding and orogen-parallel extensional exhumation in the Tauern Window. This phase was followed (14 Ma to Present) by continued orogen-parallel transport of the orogenic wedge into the Pannonian Basin and deformation of the leading edge of the Adriatic indenter, forming the Southern Alps fold-thrust belt. The lower crust of the Southern Alps indented the base of the Venediger Nappes in the Tauern Window, forming a high-velocity (6.8–7.25 km/s) ridge in map view at 30–45 km depth. By correlating the post-23 Ma orogenic evolution with presently imaged European slab segments in P-wave teleseismic tomography, we discern two possible Neogene slab removal events: One from 23 to 19 Ma triggering tectonic reorganisation of the Eastern Alps and its foreland basin, and potentially a second event after 14 Ma

    The shock of the new: ethics, law and the introduction of public access defibrillation

    Get PDF
    There have been recent moves to include Public Access Defibrillation (PAD) in emergency response strategies. The value of this development is explored in this article. The benefits and limitations of extending AutomaticExternal Defibrillator (AED) use to non-traditional first responders, minimally trained witnesses and citizens are examined and the cost-effectiveness of such developments is discussed. The authors contend that, at the present time, enthusiasm for PAD would seem misplaced and that there is a series of economic, ethical and legal uncertainties that need to be addressed before widespread distribution of AED technology should be pursued

    Defining Medical Futility in Ethics, Law and Clinical Practice: An Exercise in Futility?

    Get PDF
    The debate as to the meaning of medical futility and what physicians should do in clinical practice dates back to the time of the writings of Hippocrates and Plato where it was said, "To attempt futile treatment is to display an ignorance that is allied to madness". In simpler times assertions regarding the obvious were sufficient to indicate what was thought "fitting" as a medical practitioner. In recent times, however, modern technology, professional values and power, patient autonomy, limited health care resources and societal expectations, make for a much more potent and potentially explosive mixture. In this article we argue that futility is a problem that will not go away, both because of increased health expectations and emerging technologies that keep making possible what was previously impossible. The problem of definition and its ramifications in terms of institutional policies is one in which the legal profession and its process (which often represents and reflects societal values) has a key role to play by way of critical reflection and appraisal
    • …
    corecore