1,103 research outputs found

    Looking Good, Feeling Good – Tac Map: a navigation system for the blind

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    This paper describes the research and development of a navigation system for the blind that provides a tactile and visual language that can be understood by both sighted and blind users. It describes key work and issues in the development of graphical symbols and in particular the pioneering work of Neurath‟s ISOTYPES, as well as more specific communication systems for blind people. The paper focuses on the development of "TacMap‟, a navigation system for the blind. User engagement has been fundamental in the research and the paper discusses the methodology, the research findings and product‟s potential future opportunities and impact

    Oom Bop Bop Good Vibrations: the use of sensory feedback to create motion inhibition

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    The use of suits that restrict or inhibit joint motion have been used to aid the design of various kinds of products from cars to wheelchairs and kitchen equipment. Their principal aim has been to allow designers and engineers to understand what it is like to use these products as an older person might use them, effectively prematurely ageing the user. Such suits have been highly successful but suffer several limitations in their use. In using mechanical stiffeners on the joints such as the stiffening effect of the suits depends on the strength of the user; weaker users will find their range of motion reduced more than stronger users. This also raises the question of the sensitivity of such suits; in reality motion restriction may be linked to pain and discomfort hence motion restriction is likely to be more psychological and musko-skeletal than current suits provide. Work has been ongoing at SHU to develop a suit that restricts motion by providing sensory feedback to the user. Specialist software was developed which set motion limits to goniometers which in turn would make motors vibrate if those limits were reached. This work outlines the development of this suit and initial applications for which it has been used

    ACCCN Workforce Standards for Intensive Care Nursing: Systematic and evidence review, development, and appraisal

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    Background: The intensive care nursing workforce plays an essential role in the achievement of positive healthcare outcomes. A growing body of evidence indicates that inadequate nurse staffing and poor skill mix are associated with negative outcomes for patients, and potentially compromises nurses’ ability to maintain the safety of those in their care. In Australia, the Australian College of Critical Care Nurses (ACCCN) has previously published a position statement on intensive care staffing. There was a need for a stronger more evidence based document to support the intensive nursing workforce. Objectives: To undertake a systematic and evidence review of the evidence related to intensive care nurse staffing and quality of care, and determine evidence-based professional standards for the intensive care nursing workforce in Australia. Methods: The National Health and Medical Research Council standard for clinical practice guidelines methodology was employed. The English language literature, for the years 2000-2015 was searched. Draft standards were developed and then peer- and consumer-reviewed. Results: A total of 553 articles was retrieved from the initial searches. Following evaluation, 231 articles met the inclusion criteria and were assessed for quality using established criteria. This evidence was used as the basis for the development of ten workforce standards, and to establish the overall level of evidence in support of each standard. All draft standards and their subsections were supported multi-professionally (median score >6) and by consumers (85–100% agreement). Following minor revisions, independent appraisal using the AGREE II tool indicated that the standards were developed with a high degree of rigour. Conclusion: The ACCCN intensive care nursing nurse workforce standards are the first to be developed using a robust, evidence-based process. The standards represent the optimal nurse workforce to achieve the best patient outcomes and to maintain a sustainable intensive care nursing workforce for Australia

    Neural Embeddings of Graphs in Hyperbolic Space

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    Neural embeddings have been used with great success in Natural Language Processing (NLP). They provide compact representations that encapsulate word similarity and attain state-of-the-art performance in a range of linguistic tasks. The success of neural embeddings has prompted significant amounts of research into applications in domains other than language. One such domain is graph-structured data, where embeddings of vertices can be learned that encapsulate vertex similarity and improve performance on tasks including edge prediction and vertex labelling. For both NLP and graph based tasks, embeddings have been learned in high-dimensional Euclidean spaces. However, recent work has shown that the appropriate isometric space for embedding complex networks is not the flat Euclidean space, but negatively curved, hyperbolic space. We present a new concept that exploits these recent insights and propose learning neural embeddings of graphs in hyperbolic space. We provide experimental evidence that embedding graphs in their natural geometry significantly improves performance on downstream tasks for several real-world public datasets.Comment: 7 pages, 5 figure

    ‘Future Bathroom’, What to make? Or How to Make? Challenges in meeting sustainable needs.

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    This paper is a case study that describes a design research programme, ‘the future bathroom’, undertaken by the authors which illuminates both challenges and solutions for inclusive and sustainable design. A co-design research methodology was adopted and engaged older users and community lay researchers to help overcome the barriers of developing a comprehensive understanding of the issues related to highly personal, private and intimate activities. We adopt the term co-design to describe an approach to design that encourages both user involvement and interdisciplinary design. Our challenge has been to provide an environment where an exchange of ideas between stakeholders could take place and to foster what Manzini (1) has referred to as a ‘creative community’. From the project emerged both insight and understanding of age related disability and bathroom use and potential design solutions to support these needs. Adopting an inclusive approach to design research we have developed flexible, durable and sustainable solutions that meet the diverse and changing needs of bathroom usage The paper discusses how sustainability in the context of inclusive design might need to consider more ‘what we should make’ rather than ‘how we should make’

    Probabilistic Inference of Twitter Users' Age based on What They Follow

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    Twitter provides an open and rich source of data for studying human behaviour at scale and is widely used in social and network sciences. However, a major criticism of Twitter data is that demographic information is largely absent. Enhancing Twitter data with user ages would advance our ability to study social network structures, information flows and the spread of contagions. Approaches toward age detection of Twitter users typically focus on specific properties of tweets, e.g., linguistic features, which are language dependent. In this paper, we devise a language-independent methodology for determining the age of Twitter users from data that is native to the Twitter ecosystem. The key idea is to use a Bayesian framework to generalise ground-truth age information from a few Twitter users to the entire network based on what/whom they follow. Our approach scales to inferring the age of 700 million Twitter accounts with high accuracy.Comment: 9 pages, 9 figure

    Future bathroom: A study of user-centred design principles affecting usability, safety and satisfaction in bathrooms for people living with disabilities

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    Research and development work relating to assistive technology 2010-11 (Department of Health) Presented to Parliament pursuant to Section 22 of the Chronically Sick and Disabled Persons Act 197

    Probing Satellite Quenching With Galaxy Clustering

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    Satellites within simulated massive clusters are significantly spatially correlated with each other, even when those satellites are not gravitationally bound to each other. This correlation is produced by satellites that entered their hosts relatively recently, and is undetectable for satellites that have resided in their hosts for multiple dynamical timescales. Therefore, a measurement of clustering statistics of cluster satellites may be used to determine the typical accretion redshifts of those satellites into their observed hosts. We argue that such measurements may be used to determine the fraction of satellite galaxies that were quenched by their current hosts, thereby discriminating among models for quenching of star formation in satellite galaxies.Comment: 7 page

    Coming to Understand Diversity and Education: Life Experiences and Educational Opportunities

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    Coming to understand how cultural differences influence interactions between educators and students and their parents is a complex and perhaps life-long discovery. Culture helps to define groups’ belief systems and expectations for appropriate behavior, often at a hidden level. Pre-service teachers need multiple opportunities to interact with diverse populations in supervised and reflective environments. This article recounts key experiences in one White American’s life that have led to his current understanding of diversity and the role of diversity in education. These experiences occurred throughout my life; some were by chance and others were more prescribed. The article concludes with reflections on lessons learned as they pertain to teacher preparation programs

    HOSPITAbLe: Critical design and the domestication of healthcare.

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    The challenges society faces in providing future healthcare suggests radical changes to the way health services are delivered and the way we engage with them. There is recognition that this is likely to demand more self-care and a shift of care from hospital to our home. The home and hospital bring together very different cultural practices and environments and the inexorable geographical shift in care has potential to impact on our physical and emotional relationship with our home space. These cultural practices/experiences can be mediated through objects, which in turn can provide vehicles through which to gain understanding of the richness and complexity of people’s lives. The research draws on the value of ‘thinking with things’ as a method and central to this is the notion of exhibition as a research tool that becomes a meeting space that enables this to happen. Exhibition provides a theatre for conversation and becomes the medium and method for data collection and creates the conduit, through which societal assumptions relating to ageing and healthcare care can be made visible, explored and challenged. From a critical design position we propose artefacts through structured engagement with individuals and communities might help develop insights and inform responses to the complex challenges facing current healthcare services
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