392 research outputs found

    The Prepare for Kidney Care Study: prepare for renal dialysis versus responsive management in advanced chronic kidney disease

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    Shared decision making in advanced chronic kidney disease (CKD) requires unbiased information on survival and person-centred outcomes known to matter to patients: quality of life, symptom burden and support from family and healthcare professionals. To date, when deciding between dialysis and conservative care, patients have had to rely on evidence from small observational studies. Clinicians recognize that like is not being compared with like in these studies, and interpret the results differently. Furthermore, support differs considerably between renal units. What patients choose therefore depends on which renal unit they attend. To address this, a programme of work has been underway in the UK. After reports on survival and symptoms from a small number of renal units, a national, mixed-methods study-the Conservative Kidney Management Assessment of Practice Patterns Study-mapped out conservative care practices and attitudes in the UK. This led to the Prepare for Kidney Care study, a randomized controlled trial comparing preparation for dialysis versus preparation for conservative care. Although powered to detect a positivist 0.345 difference in quality-adjusted life years between the two treatments, this trial also takes a realist approach with a range of person-centred secondary outcomes and embedded qualitative research. To understand generalizability, it is nested in an observational cohort study, which is nested in a CKD registry. Challenges to recruitment and retention have been rapidly identified and addressed using an established embedded mixed methods approach-the QuinteT recruitment intervention. This review considers the background to and progress with recruitment to the trial

    Quality of life among caregivers of people with end-stage kidney disease managed with dialysis or comprehensive conservative care

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    BACKGROUND: To measure health-related and care-related quality of life among informal caregivers of older people with end-stage kidney disease (ESKD), and to determine the association between caregiver quality of life and care recipient's treatment type. METHODS: A prospective cross-sectional study was conducted. Three renal units in the UK and Australia were included. Informal caregivers of people aged ≥75 years with ESKD managed with dialysis or comprehensive conservative non-dialytic care (estimated glomerular filtration (eGFR) ≤10 mL/min/1.73m2) participated. Health-related quality of life (HRQoL) was assessed using Short-Form six dimensions (SF-6D, 0-1 scale) and care-related quality of life was assessed using the Carer Experience Scale (CES, 0-100 scale). Linear regression assessed associations between care-recipient treatment type, caregiver characteristics and the SF-6D utility index and CES scores. RESULTS: Of 63 caregivers, 49 (78%) were from Australia, 26 (41%) cared for an older person managed with dialysis, and 37 (59%) cared for an older person managed with comprehensive conservative care. Overall, 73% were females, and the median age of the entire cohort was 76 years [IQR 68-81]. When adjusted for caregiver sociodemographic characteristics, caregivers reported significantly worse carer experience (CES score 15.73, 95% CI 5.78 to 25.68) for those managing an older person on dialysis compared with conservative care. However, no significant difference observed for carer HRQoL (SF-6D utility index - 0.08, 95% CI - 0.18 to 0.01) for those managing an older person on dialysis compared with conservative care. CONCLUSIONS: Our data suggest informal caregivers of older people on dialysis have significantly worse care-related quality of life (and therefore greater need for support) than those managed with comprehensive conservative care. It is important to consider the impact on caregivers' quality of life when considering treatment choices for their care recipients

    Towards a runtime verification framework for the Ada Programming Language

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    Runtime verification is an emerging discipline that investigates methods and tools to enable the verification of program properties during the execution of the application. The goal is to complement static analysis approaches, in particular when static verification leads to the explosion of states. Non-functional properties, such as the ones present in real-time systems are an ideal target for this kind of verification methodology, as are usually out of the range of the power and expressiveness of classic static analyses. In this paper, we present a framework that allows real-time programs written in Ada to be augmented with runtime verification capabilities. Our framework provides the infrastructures which is needed to instrument the code with runtime monitors. These monitors are responsible for observing the system and reaching verdicts about whether its behavior is compliant with its non-functional properties. We also sketch a contract language to extend the one currently provided by Ada, with the long term goal of having an elegant way in which runtime monitors can be automatically synthesized and instrumented into the target systems. The usefulness of the proposed approach is demonstrated by showing its use for an application scenario.This work was partially supported by Portuguese National Funds through FCT (Portuguese Founda- tion for Science and Technology) and by ERDF (European Regional Develop- ment Fund) through COMPETE (Operational Programme ’Thematic Factors of Competitiveness’), within projects FCOMP-01-0124-FEDER-037281 (CISTER), FCOMP-01-0124-FEDER-015006 (VIPCORE) and FCOMP-01-0124-FEDER- 020486 (AVIACC); and by FCT and EU ARTEMIS JU, within project ARTEMIS/0003/2012, JU grant nr. 333053 (CONCERTO)

    Health-related quality of life and well-being in people over 75 years of age with end-stage kidney disease managed with dialysis or comprehensive conservative care: A cross-sectional study in the UK and Australia

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    © Author(s) (or their employer(s)) 2018. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. Objective To measure health-related quality of life (HRQoL) and well-being in older people with end-stage kidney disease (ESKD) and to determine the association between treatment type and sociodemographic characteristics on these outcome measures. In addition, to assess the convergent validity between the HRQoL and well-being measure and their feasibility and acceptability in this population. Design Prospective cross-sectional study. Setting Three renal units in the UK and Australia. Participants 129 patients with ESKD managed with dialysis or with an estimated glomerular filtration ≤10 mL/min/1.73 m 2 and managed with comprehensive conservative, non-dialytic care. Outcome measures HRQoL and well-being were assessed using Short-Form six dimensions (SF-6D, 0-1 scale); Kidney Disease Quality of Life (KDQOL-36) (0-100 scale) and Investigating Choice Experiments Capability Measure-Older people (ICECAP-O, 0-1 scale). Linear regression assessed associations between treatment, HRQoL and well-being. Pearson's correlation coefficient assessed convergent validity between instruments. Results Median age of 81 years (IQR 78-85), 65% males; 83 (64%) were managed with dialysis and 46 (36%) with conservative care. When adjusted for treatment type and sociodemographic variables, those managed on dialysis reported lower mean SF-6D utility (-0.05, 95% CI-0.12 to 0.01); lower KDQOL Physical Component Summary score (-3.17, 95% CI-7.61 to 1.27); lower Mental Component Summary score (-2.41, 95% CI-7.66 to 2.84); lower quality of life due to burden (-28.59, 95% CI-41.77 to-15.42); symptoms (-5.93, 95% CI-14.61 to 2.73) and effects of kidney disease (-16.49, 95% CI-25.98 to-6.99) and lower overall ICECAP-O well-being (-0.07, 95% CI-0.16 to 0.02) than those managed conservatively. Correlation between ICECAP-O well-being and SF-6D utility scores was strong overall, 0.65 (

    Coupled Dipole Method Determination of the Electromagnetic Force on a Particle over a Flat Dielectric Substrate

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    We present a theory to compute the force due to light upon a particle on a dielectric plane by the Coupled Dipole Method (CDM). We show that, with this procedure, two equivalent ways of analysis are possible, both based on Maxwell's stress tensor. The interest in using this method is that the nature and size or shape of the object, can be arbitrary. Even more, the presence of a substrate can be incorporated. To validate our theory, we present an analytical expression of the force due to the light acting on a particle either in presence, or not, of a surface. The plane wave illuminating the sphere can be either propagating or evanescent. Both two and three dimensional calculations are studied.Comment: 10 pages, 8 figures and 3 table

    Attentive Learning of Sequential Handwriting Movements: A Neural Network Model

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    Defense Advanced research Projects Agency and the Office of Naval Research (N00014-95-1-0409, N00014-92-J-1309); National Science Foundation (IRI-97-20333); National Institutes of Health (I-R29-DC02952-01)

    Innovation Management Techniques and Tools: a review from Theory and Practice

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    Knowledge is considered to be an economic driver in today’s economy. It has become a commodity, a resource that can be packed and transferred. The objective of this paper is to provide a comprehensive review of the scope, trends and major actors (firms, organizations, government, consultants, academia, etc.) in the development and use of methods to manage innovation in a knowledge-driven economy. The paper identifies the main innovation management techniques (IMTs) aiming at the improvement of firm competitiveness by means of knowledge management. It will specifically focus on those IMTs for which knowledge is a relevant part of the innovation process. The research study, based on a survey at the European level, concludes that a knowledge-driven economy affects the innovation process and approach. The traditional idea that innovation is based on research (technology-push theory) and interaction between firms and other actors has been replaced by the current social network theory of innovation, where knowledge plays a crucial role in fostering innovation. Simultaneously, organizations in both public and private sectors have launched initiatives to develop methodologies and tools to support business innovation management. Higher education establishments, business schools and consulting companies are developing innovative and adequate methodologies and tools, while public authorities are designing and setting up education and training schemes aimed at disseminating best practices among all kinds of businesse

    Legal Steps Outside the Climate Convention: Litigation as a Tool to Address Climate Change

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    This article examines the recent academic interest in litigation as a tool to address climate change, as well as the surge of legal actions worldwide to bring the problem to the attention of judiciaries. This new interest reveals the frustration of legal scholars and activists at the slow rate at which policy makers are addressing the climate change problem. This article shows the slow build-up of academic interest in litigation, before moving on to analyse the kinds of legal causes of action that are being used in different parts of the world. Most of these cases have not been fully resolved, and it is more than likely that the judgments may not always be favourable to the plaintiffs, but at least a first step has been made to involve yet another forum for addressing the climate change problem. © 2007 The Author. Journal compilation © 2007 Blackwell Publishing Ltd

    Implementing guidelines and training initiatives to improve cross-cultural communication in primary care consultations: a qualitative participatory European study

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    Abstract BACKGROUND: Cross-cultural communication in primary care is often difficult, leading to unsatisfactory, substandard care. Supportive evidence-based guidelines and training initiatives (G/TIs) exist to enhance cross cultural communication but their use in practice is sporadic. The objective of this paper is to elucidate how migrants and other stakeholders can adapt, introduce and evaluate such G/TIs in daily clinical practice. METHODS: We undertook linked qualitative case studies to implement G/TIs focused on enhancing cross cultural communication in primary care, in five European countries. We combined Normalisation Process Theory (NPT) as an analytical framework, with Participatory Learning and Action (PLA) as the research method to engage migrants, primary healthcare providers and other stakeholders. Across all five sites, 66 stakeholders participated in 62 PLA-style focus groups over a 19 month period, and took part in activities to adapt, introduce, and evaluate the G/TIs. Data, including transcripts of group meetings and researchers' fieldwork reports, were coded and thematically analysed by each team using NPT. RESULTS: In all settings, engaging migrants and other stakeholders was challenging but feasible. Stakeholders made significant adaptations to the G/TIs to fit their local context, for example, changing the focus of a G/TI from palliative care to mental health; or altering the target audience from General Practitioners (GPs) to the wider multidisciplinary team. They also progressed plans to deliver them in routine practice, for example liaising with GP practices regarding timing and location of training sessions and to evaluate their impact. All stakeholders reported benefits of the implemented G/TIs in daily practice. Training primary care teams (clinicians and administrators) resulted in a more tolerant attitude and more effective communication, with better focus on migrants' needs. Implementation of interpreter services was difficult mainly because of financial and other resource constraints. However, when used, migrants were more likely to trust the GP's diagnoses and GPs reported a clearer understanding of migrants' symptoms. CONCLUSIONS: Migrants, primary care providers and other key stakeholders can work effectively together to adapt and implement G/TIs to improve communication in cross-cultural consultations, and enhance understanding and trust between GPs and migrant patients.The RESTORE project was funded by the EU Seventh Framework Programme (FP7/2007–2013) under Grant Agreement No. 257258. RESTORE: REsearch into Implementation STrategies to support patients of different ORigins and language background in a variety of European primary care setting

    E-retailing ethics in Egypt and its effect on customer repurchase intention

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    The theoretical understanding of online shopping behaviour has received much attention. Less focus has been given to the formation of the ethical issues that result from online shopper interactions with e-retailers. The vast majority of earlier research on this area is conceptual in nature and limited in scope by focusing on consumers’ privacy issues. Therefore, the purpose of this paper is to propose a theoretical model explaining what factors contribute to online retailing ethics and its effect on customer repurchase intention. The data were analysed using variance-based structural equation modelling, employing partial least squares regression. Findings indicate that the five factors of the online retailing ethics (security, privacy, non- deception, fulfilment/reliability, and corporate social responsibility) are strongly predictive of online consumers’ repurchase intention. The results offer important implications for e-retailers and are likely to stimulate further research in the area of e-ethics from the consumers’ perspective
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