3,766 research outputs found

    Responsive environments: Participants and protagonists

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    This PhD research project builds on thirteen years of enquiries as an academic practitioner, developing/critiquing interactive audio-visuals. This approach interweaves theory and practice so that both build on each other. It responds to the need for principles that inter-relate people, digital technologies and environments. The concept of “responsive environments” (RE) is offered as a starting point for the development of principles focusing on people within these environments. A responsive environment is “responsive” in the sense that some form of computer technologies are present and sensing/recording/reacting to people, and an “environment” in the sense that these activities are located in a place and that that place matters in terms of setting the scene, housing the technology and providing a context for the users/visitors. Common themes were extracted from the literature review to draw together previous and, for the most part, separate attempts at theory/practice relating to RE. These themes were complemented by research into contemporaneous activities in the areas of Augmented Reality, Mixed Reality and Locative Media to provided enhancements to the development of three practice projects. These enhancements together with the incorporation of Moore and Anderson’s concepts of “patient”, “actor”, “reciprocator” and “referee” as roles available to those encountering REs led to specific research questions regarding roles, positions, opportunities for repurposing content, learning experiences, the use of sound, visuals and presence, and the assessment of values represented in and through a responsive environment. In each case these questions shift the emphasis of the research towards the experiencing of REs and what they enable rather than the technologies used only. The use of Schwartz and Halegoua’s concept of the “spatial self” further focuses attention of the value in connecting digital expression with real spaces through an RE. This has led to a proposed conceptual framework and principles of practice that can be applied in the area of study of RE to nurture opportunities for participants and protagonists. The latter term is proposed as a means of acknowledging opportunities to make content/concepts in an RE as well as obtain and use them by participation. These opportunities are supported by both synchronous and asynchronous interactions through digital layers using online social media platforms. These platforms enable the archiving of content in a digital layer and/or possibilities for continued social interaction through a digital social layer in relation to the responsive environment. The incorporation of synchronous and asynchronous interactions through digital layers is a major contribution to the concept of REs. A further contribution is the use of the pioneering work of Gordon Pask in both the practice and theory of cybernetics as informing the concept of REs. Pask provided a formulation that expressed how content/concepts could be produced through relationships between people, computers and environments. This approach has been mirrored in other disciplines thus giving additional credence to its value. This discovery provides the impetus for further research, by academic practitioners and others, in this developing area of study

    Validation tests for Ships Supply Support Study

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    A study is devoted to the development of statistical procedures to be used to test the validity of the Ships Supply Support Study simulator. Some theory is presented for each test procedure, but special emphasis is paid to describing each test in detail so that the tests can be implemented by the project study group. Examples which illustrate the required numerical work are given with each test procedure, and the advantages and disadvantages of each are pointed out. A computer program which will perform the calculations necessary for the more complicated test is included. (Author)supported by the Research and Development Division, Naval Supply Systems Command, under NAVSUP RDT&E No. TF 38.531.001.http://archive.org/details/validationtestsf00richThis test was supported by the Research and Development Division, Naval Supply Systems Command, under NAVSUP RD

    Market-Based Instruments for the Optimal Control of Invasive Insect Species: B. Tabaci in Arizona

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    Invasive insect species represent perhaps one of the most significant potential sources of economic risk to U.S. agricultural production. Private control of invasive insect species is likely to be insufficient due to negative externality and weaker-link public good problems. In this study, we compare a system of Pigouvian taxes with tradable permits for invasive species control. While the emissions control literature shows that taxes are preferred to permits under cost uncertainty, invasive-species control involves correlated cost and benefit uncertainty. Hence, we expect a quantity-based system to be preferred. Monte Carlo simulations of optimal steady-state outcomes confirm our expectations.externalities, invasive species, optimal control, permits, spatial-temporal model, taxes, Crop Production/Industries, Resource /Energy Economics and Policy,

    Market-Based Instruments for the Optimal Control of Invasive Insect Species: B. Tabaci in Arizona

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    Invasive insect species represent perhaps one of the most significant potential sources of economic risk to U.S. agricultural production. Private control of invasive insect species is likely to be insufficient due to negative externality and weaker-link public good problems. In this study, we compare a system of Pigouvian taxes with tradable permits for invasive species control. While the emissions control literature shows that taxes are preferred to permits under cost uncertainty, invasive species control involves correlated cost and benefit uncertainty, so we expect a quantity-based system to be preferred. Monte Carlo simulations of optimal steady-state outcomes confirm our expectations.externalities, invasive species, optimal control, permits, spatial-temporal model, taxes., Environmental Economics and Policy, Public Economics, Risk and Uncertainty, H23, L51, Q28, Q57.,

    Nurse telephone triage for same day appointments in general practice: multiple interrupted time series trial of effect on workload and costs

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    OBJECTIVE: To compare the workloads of general practitioners and nurses and costs of patient care for nurse telephone triage and standard management of requests for same day appointments in routine primary care. DESIGN: Multiple interrupted time series using sequential introduction of experimental triage system in different sites with repeated measures taken one week in every month for 12 months. SETTING: Three primary care sites in York. Participants: 4685 patients: 1233 in standard management, 3452 in the triage system. All patients requesting same day appointments during study weeks were included in the trial. MAIN OUTCOME MEASURES: Type of consultation (telephone, appointment, or visit), time taken for consultation, presenting complaints, use of services during the month after same day contact, and costs of drugs and same day, follow up, and emergency care. RESULTS: The triage system reduced appointments with general practitioner by 29-44%. Compared with standard management, the triage system had a relative risk (95% confidence interval) of 0.85 (0.72 to 1.00) for home visits, 2.41 (2.08 to 2.80) for telephone care, and 3.79 (3.21 to 4.48) for nurse care. Mean overall time in the triage system was 1.70 minutes longer, but mean general practitioner time was reduced by 2.45 minutes. Routine appointments and nursing time increased, as did out of hours and accident and emergency attendance. Costs did not differ significantly between standard management and triage: mean difference £1.48 more per patient for triage (95% confidence interval -0.19 to 3.15). CONCLUSIONS: Triage reduced the number of same day appointments with general practitioners but resulted in busier routine surgeries, increased nursing time, and a small but significant increase in out of hours and accident and emergency attendance. Consequently, triage does not reduce overall costs per patient for managing same day appointments

    The amount and composition of rain falling at Rothamsted

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    RESP-25

    Heat of Wetting of Soils

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    Many important soil processes such as base exchange capacity, plant food availability and moisture holding capacity, are influenced by the amount of surface per unit mass of soil. For this reason, measurements related to this soil characteristic may be used in connection with many soil problems. This article is concerned with the description of a method of measuring the relative surface area of soils with apparatus suited for student use. It consists in measuring the heat energy liberated by a dry soil which is wetted by water at the same temperature

    The reporting experiences and support needs of victims of online fraud

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    Although fraud has been practiced throughout history, the advent of the internet has created new and effective avenues for targeting potential victims. Victims of online fraud experience substantial financial and other harms, resulting in annual losses in Australia of more than 2b,significantorganisationaldisruptionanddevastatinghumansuffering.Priorresearchinthisareahasgenerallybeenconductedthroughvictimsurveysandtheanalysisofofficialadministrativedatasets,butlittleresearchhasinvolvedspeakingwithvictimsofonlinefraudabouttheirexperiences.Thispaperpresentstheresultsofindepthinterviewsconductedwithasampleof80individualsfromacrossAustraliawholodgedcomplaintsofonlinefraudinvolvinglossesof2b, significant organisational disruption and devastating human suffering. Prior research in this area has generally been conducted through victim surveys and the analysis of official administrative datasets, but little research has involved speaking with victims of online fraud about their experiences. This paper presents the results of in-depth interviews conducted with a sample of 80 individuals from across Australia who lodged complaints of online fraud involving losses of 10,000 or more over the preceding four years. Their stories illustrate the financial impact of fraud and the emotional, psychological, interpersonal and physical impacts of their victimisation. They also document the barriers they faced in reporting these crimes. The paper concludes by identifying the support needs of victims of online fraud. Online fraud poses a substantial threat to the financial and overall wellbeing of Australians. An estimated 8mto8m to 10m is sent overseas every month by Australians as a result of dishonest online invitations (Bradley 2013). The latest report of the Australian Competition and Consumer Commission (ACCC 2015) indicates that Australians reported the loss of almost 82mtoconsumerfraudin2014;thisestimateisbasedonlyonreportsmadetotheACCCandexcludesreportsmadetootherorganisationsandthemanycasesthatarenotofficiallyreported.TheAustralianInstituteofCriminologyestimatesfraudcostsAustralianvictimsinexcessof82m to consumer fraud in 2014; this estimate is based only on reports made to the ACCC and excludes reports made to other organisations and the many cases that are not officially reported. The Australian Institute of Criminology estimates fraud costs Australian victims in excess of 6b a year, and online fraud is responsible for a considerable proportion of this amount (Smith, Jorna, Sweeney & Fuller 2014). The present study explores the nature of these harms, victims’ experiences of reporting to authorities, how victims deal with their fraud victimisation and what support they require to do so. Fraud involves tricking a victim into providing something of value to an offender such as money, personal details, or explicit images. The technological advances of recent years have seen opportunities and mechanisms for perpetrating fraud proliferate. The internet is one of the principal tools for committing consumer or personal fraud. It provides an efficient means of contacting potential victims, a rich source of personal information and a practical way of securing payments. Consequently, online fraud has developed considerably over the past two decades. Online fraud victimisation can be defined as ‘the experience of an individual who has responded via the internet to a dishonest invitation, request, notification or offer by providing personal information or money [which] has led to the suffering of a financial or non-financial loss or impact of some kind’ (Cross, Smith & Richards 2014:1)

    'Breakfast, lunch and dinner': attitudes to infant feeding amongst children in a Scottish primary school. A qualitative focus group study

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    Objective  To describe the knowledge, attitudes and beliefs about infant feeding in one primary school in Scotland.  Design Qualitative focus group study.  Setting  A single primary school which serves a mixed socioeconomic area in the north of Scotland.  Method Parents gave demographic details about their family and information about whether their children had been breastfed. Twenty- three children, aged 6, took part in three focus groups which were conducted by two facilitators, according to a predetermined topic guide. Focus group data were supplemented with analyses of children's drawings and with fieldnotes.  Results Children generally spoke of and drew pictures of bottle-feeding. Their lack of everyday language for breastfeeding suggested that breastfeeding was not a'taken-for-granted' activity. The repeated reference to adult meal patterns and to equipment suggested that the children have a mechanistic and confused idea of what breastfeeding involves. Their difficulties conceptualising night feeds and feeding in public places suggested that the children viewed breastfeeding as a private activity, permissible only in certain contexts. Children had vivid recall of TV images of infant feeding.  Conclusions Despite the observation that breastfeeding was not generally perceived as a natural activity, our findings suggest that primary school children are interested in infant feeding and that they can be engaged in and educated about it as young as six years old. Larger studies are needed to further explore attitudes to infant feeding

    Incidental Malrotation in Adolescent Diagnosed with Appendicitis

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    17-year-old male patient with a history of autism presenting with right lower quadrant pain that started in the morning. The appendix was not able to be visualized by ultrasonography. An abdominal and pelvic CT with contrast showed a dilated appendix with surrounding inflammation. Malrotation was not identified on CT Scan. Patient was transferred to a nearby Children’s Hospital for laparoscopic appendectomy. During the procedure, the pediatric surgeon noted that initially, neither the appendix nor cecum was present in the right lower quadrant. This case represents an uncommon finding for a patient in the adolescent age group
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