1,096 research outputs found
Using Wii technology to explore real spaces via virtual environments for people who are blind
Purpose - Virtual environments (VEs) that represent real spaces (RSs) give people who are blind the opportunity to build a cognitive map in advance that they will be able to use when arriving at the RS. Design - In this research study Nintendo Wii based technology was used for exploring VEs via the Wiici application. The Wiimote allows the user to interact with VEs by simulating walking and scanning the space. Finding - By getting haptic and auditory feedback the user learned to explore new spaces. We examined the participants' abilities to explore new simple and complex places, construct a cognitive map, and perform orientation tasks in the RS. Originality â To our knowledge, this finding presents the first virtual environment for people who are blind that allow the participants to scan the environment and by this to construct map model spatial representations
DIVIDER: Modelling and Evaluating Real-Time Service-Oriented Cyberphysical Co-Simulations
The ability to reliably distribute simulations across a distributed system and seamlessly integrate them as a workflow regardless of their level of abstraction is critical to improving the quality of product manufacturing. This paper presents the DIVIDER architecture for managing and maintaining real-time performance simulations integrated through SOAs. The described approach captures features present in complex workflow patterns such as asynchronous arbitrary cycles and estimates the worst case execution time in the context of the interfering execution environment
Theory into Practice in a Sociology of Education Course
A prime criticism of teacher education is that it fails to prepare students for what lies ahead - namely, their life as a teacher. Indeed, Fuller and Brown (1975) go so far as to comment that teacher training may be orthogonal to the teacher. The major reason for this, it seems, is that college programmes and university courses do not appear to be relevant to student needs. This situation, according to many, is partly the fault of lecturers who may be out of touch with the reality of school life, and what it means to be a teacher in the community context
Public Inquiries on Counterterrorism: An Independent Appraisal of New Zealand's Royal Commission of Inquiry into the Christchurch Terrorist Attack
Draft-in-progress; please do not distribute further or citeEven though elected leaders of liberal democracies respond to major terrorist attacks by commissioning public inquiries, scholars have not yet fully explored these inquiries as a practice of the War on Terror. By undertaking an independent appraisal of the Royal Commission of Inquiry into the Terrorist Attack on Christchurch Mosques on 15 March 2019 we seek to introduce empirical evidence of an important case of investigatory oversight to the more critical terrorism studies literature. Specifically, we examine how the Royal Commissioners interpreted their Terms of Reference, explore the ways in which they engaged with New Zealandâs security agencies as well as with various individuals, groups and communities beyond the public sector, and assess the quality of their recommendations. We argue that the Commissioners positioned themselves publicly as undertaking a remedial intervention in New Zealandâs counterterrorism effort, but their inquiry was, in fact, designed to reassure the public that the current security dispensation is largely fit for purpose and does not need major reform. The inquiry did little more than enable two carefully chosen Commissioners, imbued with a veneer of professional detachment but lacking in subject-matter expertise, to call for a strengthening of state security institutions, entrenching the hierarchies that already prevail within the national security system while shielding parliamentarians from accusations of disinterest, negligence or acts of omission. Consequently, New Zealand is no better off when it comes to its ability to understand the nature and scale of the threat posed by terrorism or to respond to an array of routine, as well as novel and surprise, security challenges
n-Dimensional QoS Framework for Real-Time Service-Oriented Architectures
Service-Orientation has long provided an effective mechanism to integrate heterogeneous systems in a loosely coupled fashion as services. However, with the emergence of Internet of Things (IoT) there is a growing need to facilitate the integration of real-time services executing in non-controlled, non-real-time, environments such as the Cloud. With the need to integrate both cyberphysical systems as hardware-in-the-loop (HIL) components and also with Simulation as a Service (SIMaaS) the execution performance and response-times of the services must be managed. This paper presents a mathematical framework that captures the relationship between the host execution environment and service performance allowing the estimation of Quality of Service (QoS) under dynamic Cloud workloads. A formal mathematical definition is provided and this is evaluated against existing techniques from both the Cloud and Real-Time Service Oriented Architecture (RT-SOA) domains. The proposed approach is evaluated against the existing techniques through simulation and demonstrates a reduction of QoS violation percentage by 22% with respect to response-times as well as reducing the number of Micro-Service (uS) instances with QoS violations by 27%
A service oriented virtual environment for complex system analysis: Preliminary report
Distributed virtual simulation is a capability that is increasing in demand within the automotive manufacturing industry. The distributed and networked approach to system level design and simulation stands to benefit from a unifying relational oriented modeling and simulation framework due to the large number of simulation technologies that must be integrated. This will also permit innovative use of existing independent simulations for increased concurrency in design and verification and validation. Through relational orientation, high level syntax and semantics for representing models and simulations have been developed for proof of concept analysis. This paper presents an approach to drive a process of analysis of the vehicle as a complex system through the combination of a relational trade-off analysis framework and a distributed simulation execution delivered through a service-oriented integration architecture. This promises to provide a rigorous, traceable and agile approach to early stage conceptual vehicle design and analysis
The Internet of Simulation: Enabling Agile Model Based Systems Engineering for Cyber-Physical Systems
The expansion of the Internet of Things (IoT) has resulted in a complex cyber-physical system of systems that is continually evolving. With ever more complex systems being developed and changed there has been an increasing reliance on simulation as a vital part of the design process. There is also a growing need for simulation integration and co-simulation in order to analyse the complex interactions between system components. To this end we propose that the Internet of Simulation (IoS) as an extension of IoT can be used to meet these needs. The IoS allows for multiple heterogeneous simulations to be integrated together for co-simulation. It's effect on the engineer process is to facilitate agile practices without sacrificing rigour. An Industry 4.0 example case study is provided showing how IoS could be utilized
Changing practice to support self-management and recovery in mental illness: application of an implementation model
Author Version made available in accordance with the publisher's policyHealth services introducing practice changes need effective implementation methods. Within the setting of a community mental health service offering recovery-oriented psychosocial support for people with mental illness, we aimed to (a) identify a well-founded implementation model and (b) assess its practical usefulness in introducing a new program for recovery-oriented self-management support. We reviewed the literature to identify implementation models applicable to community mental health, and having corresponding measurement tools. We used one of these models to inform organisational change strategies. The literature review showed few models with corresponding tools. The Promoting Action on Research Implementation in Health Services (PARIHS) model and the related Organizational Readiness to Change Assessment (ORCA) tool were used. PARIHS proposes prerequisites for health service change and the ORCA measures the extent to which these prerequisites are present. Application of the ORCA at two time points during implementation of the new program showed strategy-related gains for some prerequisites but not for others, reflecting observed implementation progress. Additional strategies to address target prerequisites could be drawn from the PARIHS model. The PARIHS model and ORCA tool have potential in designing and monitoring practice change strategies in community mental health. Further practical use and testing of implementation models appears justified in overcoming barriers to change
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"Our people has got to come to terms with that": changing perceptions of the digital rectal examination as a barrier to prostate cancer diagnosis in African-Caribbean men
Objective: AfricanâCaribbean men in the United Kingdom in comparison with other ethnicities have the highest incidence rate of prostate cancer. Psychosocial aspects related to screening and presentation impact on men's behavior, with previous studies indicating a range of barriers. This study explores one such barrier, the digital rectal examination (DRE), due to its prominence within UK AfricanâCaribbean men's accounts.
Methods: AfricanâCaribbean men with prostate cancer (n = 10) and without cancer (n = 10) were interviewed about their perceptions of DRE. A synthetic discursive approach was employed to analyze the data.
Results: Findings illustrate that an interpretative repertoire of homophobia in relation to the DRE is constructed as having an impact upon AfricanâCaribbean men's uptake of prostate cancer screening. However, the discursive focus on footing and accountability highlight deviations from this repertoire that are built up as pragmatic and orient to changing perceptions within the community.
Conclusions: Health promotion interventions need to address the fear of homophobia and are best designed in collaboration with the community
Incorporating parent, former patient, and clinician perspectives in the design of a national UK double-cluster, randomised controlled trial addressing uncertainties in preterm nutrition
Background: Comparative effectiveness randomised controlled trials are powerful tools to resolve uncertainties in existing treatments and care processes. We sought parent and patient perspectives on the design of a planned national, double-cluster randomised controlled trial (COLLABORATE) to resolve two longstanding uncertainties in preterm nutrition. Methods: We used qualitative focus groups and interviews with parents, former patients and clinicians. We followed the Consolidated Criteria for Reporting Qualitative Research checklist and conducted framework analysis, a specific methodology within thematic analysis. Results: We identified support for the trialâs methodology and vision, and elicited themes illustrating parentsâ emotional needs in relation to clinical research. These were: relieving the pressure on mothers to breastfeed; opt-out consent as reducing parent stress; the desire for research to be a partnership between clinicians, parents and researchers; the value of presenting trial information in a collaborative tone; and in a format that allows assimilation by parents at their own pace. We identified anxiety and cognitive dissonance among some clinicians in which they recognised the uncertainties that justify the trial but felt unable to participate because of their strongly held views. Conclusions: The early involvement of parents and former patients identified the centrality of parentsâ emotional needs in the design of comparative effectiveness research. These insights have been incorporated into trial enrolment processes and information provided to participants. Specific outputs were a two-sided leaflet providing very brief as well as more detailed information, and use of language that parents perceive as inclusive and participatory. Further work is warranted to support clinicians to address personal biases that inhibit trial participation
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