Search results

This paper aims to advance the idea of consequential engagement, positioning it as a necessary complement to the more common practices of supporting procedural or conceptual engagement. More than a theoretical argument, this notion is grounded in examples from the authors' work in enlisting game‐based methodologies and technologies for supporting such engagement.

Through the presentation of two example designs, an elementary statistics curriculum and an undergraduate educational psychology course, the paper attends to the potential of narratively‐rich, multi‐user virtual environments for positioning students to critically engage academic content. In particular, it discusses the importance of designing spaces that afford opportunities to understand and apply disciplinary concepts in making sense of, and potentially transforming, conceptually‐revealing scenarios.

The paper discusses the role of consequential engagement in supporting meaningful procedural and conceptual engagement, and the potential of these designed spaces for positioning learners to develop an appreciation both of the power of the conceptual tools they engage, and of themselves and their peers as people who use these tools.

This paper proposes a framework for design that can be applied to both real and virtual learning environments.

eScience workflows use orchestration for integrating and coordinating distributed and heterogeneous scientific resources, which are increasingly exposed as web services. The rate of growth of scientific data makes eScience workflows data‐intensive, challenging existing workflow solutions. Efficient methods of handling large data in scientific workflows based on web services are needed. The purpse of this paper is to address this issue.

In a previous paper the authors proposed Data‐Flow Delegation (DFD) as a means to optimize orchestrated workflow performance, focusing on SOAP web services. To improve the performance further, they propose pipelined data‐flow delegation (PDFD) for web service‐based eScience workflows in this paper, by leveraging from the domain of parallel programming. Briefly, PDFD allows partitioning of large datasets into independent subsets that can be communicated in a pipelined manner.

The results show that the PDFD improves the execution time of the workflow considerably and is capable of handling much larger data than the non‐pipelined approach.

Execution of a web service‐based workflow hampered by the size of data can be facilitated or improved by using services supporting Pipelined Data‐Flow Delegation.

Contributions of this work include the proposed concept of combining pipelining and Data‐Flow Delegation, an XML Schema supporting the PDFD communication between services, and the practical evaluation of the PDFD approach.

Pusher configured turbo-prop aircraft receive inadequate ram air cooling due to the lack of propeller slipstream, particularly during ground operations. However, flow entrainment can be exploited to a greater extent by placing the oil-cooler duct close to downstream of the propeller at a suitable radial location. But this method has a detrimental effect on the propeller thrust. The purpose of this paper is to discuss the results of numerical simulations carried out to simulate the performance of the propeller with and without oil cooler.

In this paper, three-dimensional (3D) numerical simulations are carried out to simulate the propeller in a rotating domain using an unstructured grid. A computational fluid dynamics solver is put forward to analyze the effect of thrust loss by solving 3D Navier-Stokes equations using a second-order upwind finite-volume scheme. In this study, the impact of thrust loss incurred in the propeller flow field with and without oil cooler duct for three different locations at various rotational speeds is carried out to assess the propeller performance and to identify the optimum position to get a sufficient mass flow rate.

The findings from this study are simulated thrust values of an uninstalled five-bladed propeller of light transport aircraft (LTA) match well with original equipment manufacturer propeller thrust data. The tip speed velocities simulated for different operating conditions are in good agreement with the theoretical calculations. The influence of oil-cooler effect on the propeller flow field is less in low velocity to high-velocity operating condition due to flow transition from laminar to turbulent. The presence of the oil cooler, which influences the thrust loss, is studied at propeller upstream and downstream locations in detail for 30%, 40% and 50% of propeller radius cases.

Simulations with finer and structured hexa grids can be applied to this problem to get closer results and save solver time as future work.

The recommended system is installed in the production standard aircraft of LTA. After installation oil cooler performance is better compared to the previous arrangement.

Research work about pusher aircraft is very limited. The problem addressed in this study is unique which resolves the major issue of pusher aircraft. This work highlights the difficulty involved in LTA engine oil cooling, and solution methodologies are also provided. Numerical simulation with oil-cooler assembly is a new area of research that gave the solution for this oil-cooling issue through various oil-cooler case studies.

We are growing accustomed to shock tactics of the US Administration in dealing with toxic residues in food or additives which are a hazard to man, as well as the daily press infusing sensation, even melodrama, into them, but the recent action of the FDA in calling in from the food market several million cans of tuna and other deep sea fish because of the presence of mercury has had the worthwhile effect of drawing world attention to the growing menace of environmental pollution. The level of mercury in the fish is immaterial; it should never have been there at all, but it stresses the importance of the food chain in the danger to man and animal life generally, including fish beneath the sea. Without underestimating risks of pollution in the atmosphere from nuclear fission products, from particulate matter carried in the air by inhalation or even skin absorption, food and drink, which includes aqua naturale would seem to be the greatest danger to life. What these recent events illustrate in a dramatic manner, however, is the extent of pollution.

The purpose of this paper is to investigate the implications of the emergence of virtual research environments (VREs) and related e‐research tools for scholarly work and communications processes.

The concepts of VREs and of e‐research more generally are introduced and relevant literature is reviewed. On this basis, the authors discuss the developing role they play in research practices across a number of disciplines and how scholarly communication is beginning to evolve in response to the opportunities these new tools open up and the challenges they raise.

Virtual research environments are beginning to change the ways in which researchers go about their work and how they communicate with each other and with other stakeholders such as publishers and service providers. The changes are driven by the changing landscape of data production, curation and (re‐)use, by new scientific methods, by changes in technology supply and the increasingly interdisciplinary nature of research in many domains.

The paper is based on observations drawn from a number of projects in which the authors are investigating the uptake of advanced ICT in research. The paper describes the role of VREs as enablers of changing research practices and the ways in which they engender changes in scholarly work and communications.

Librarians and other information professionals need to be aware of how advanced ICTs are being used by researchers to change the ways they work and communicate. Through their experiences with the integration of virtual learning environments within library information services, they are well placed to inform developments that may well change scholarly communications fundamentally.

The paper contributes to emerging discussions about the likely trajectory and impact of advanced ICTs on research and their implications for those, such as librarians and other information professionals, who occupy important support roles.

The purpose of this paper is to profile the research activity, research skills and enablers of research of clinical psychologists in the Republic of Ireland.

All clinical psychologists working in the Health Service Executive (HSE) or HSE-funded organisations were requested to complete an online survey examining their research capacity. A total of 170 clinical psychologists completed the survey, with an estimated response rate of 20-25 per cent.

Within the preceding two years, 60 per cent (n=102) of the clinical psychologists sampled had engaged in research. These research active participants were involved with a median of three projects and the majority spent 10 per cent or less of their work time engaged in research. The weakest research skills of research active and research inactive participants were applying for research funding and publishing research. Research active participants indicated a reliance on their own personal motivation to maintain their research activity and indicated a need for more protected time for research.

Managers within the health service need to be incentivised to allocate protected work time for research that directly contributes to service provision. Greater collaboration with academic institutions is needed with regard to targeting the research skills development of clinical psychologists, as well as identifying opportunities for collaborative research.

This is the first survey to profile the research activity and skills of clinical psychologists in the Republic of Ireland and provides an evidence base for future research capacity development.

Geography is an exciting discipline involving the interrogation of place, space, and mobility. Film is too powerful and assessable tool that engages audiences. Therefore, this article builds a rationale for utilizing film in the teaching of geography. Particularly geographic mobility, which is the study of spatial patterns of movement and viewing them with positive or negative social meaning and as embedded within structures of power.

This is not a research paper so there is no methodology to detail.

This is not a research paper so there are no findings to detail.

The article introduces three films (Selma, Hidden Figures, and The Green Book) and describes how they can be used to enrich the teaching of geographic mobility.

Aims to bridge the gap between grid computing and semantic exploitation of information commonly met in digital library infrastructures.

This paper introduces a semantic digital library framework based on grid technology. It follows the OGSA specifications for the development of grid infrastructures capable of efficiently handling such information. It is a service‐oriented approach based on common web technologies such as the web browser and web server. The design principles of the proposed framework take into account the emerging need to exploit the semantics of its underlying information through the employment of adequate open standard technologies such as RDF and OWL.

Although semantic exploitation of large data sets used to be a difficult and resource‐consuming activity usually taking place in specialized, highly equipped laboratories, this work demonstrates that emerging technologies like the grid and emerging standards like RDF/OWL are capable of bringing such research closer to the average workstation.

The lack of a working prototype based on the proposed framework limits the usefulness of the results deriving from this paper.

This paper can serve as a starting point to researchers wishing to conduct research in the area of the semantic grid as applied to digital library infrastructures.

A number of insights are provided into the characteristics and attitudinal orientations of American and Canadian credit card users with indications that in both countries further growth in the development of credit cards is expected throughout the 1980s.