15,164 research outputs found
Flows of constant mean curvature tori in the 3-sphere: The equivariant case
We present a deformation for constant mean curvature tori in the 3-sphere. We
show that the moduli space of equivariant constant mean curvature tori in the
3-sphere is connected, and we classify the minimal, the embedded, and the
Alexandrov embedded tori therein. We conclude with an instability result.Comment: v2: 33 pages, 9 figures. Instability result adde
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Issues of quality assurance in the management of plagiarism in blended learning environments
Increasing access to and availability of electronic resources presents students with a rich
library of opportunities for independent study. But students also find themselves in the
confusing territory of how they should best use these resources within their assessment
activities. Likewise, teaching institutions are faced with the problems of plagiarism and
collusion, and the challenges of educating, deterring, detecting, and dealing with breaches of
policy in a fair and consistent way across all disciplines.
This paper examines issues of quality assurance in the management of plagiarism by
discussing the following questions:
– How can effective automated plagiarism detection services be introduced and managed
across the institution?
– What teaching and assessment practices can be adopted to deter plagiarism?
– What part should collusion and plagiarism detection tools play in educating and deterring
students?
– What are appropriate penalties for plagiarism and collusion and how can these be
applied consistently across disciplines?
Drawing together three distinct strands of research, in both distance and campus based
institutions, the authors discuss how practice and policy have evolved in recent years in an
attempt to reduce the incidence of plagiarism and collusion. The paper will illustrate this
evolution by reporting on recent developments in assessment strategy, detection tools, and
policy within two UK HE Institutions: The UK Open University and Manchester Metropolitan
University
Modelling and Developing an Intelligent Road Lighting System Using Power-Line Communication
The development of a suitable system which will control street lighting ballasts depending on traffic flow, communicate data between each street light along the Power-Line and sense passing traffic. This paper offers the methodology of the system, environmental benefits, commercial benefits and safety benefits of such a unique system. It also shows topics that have been researched to date and potential future development paths this research could take
A case report: retigabine induced oral mucosal dyspigmentation of the hard palate
Background
Dyspigmentation of the oral mucosa has a multitude of aetiological causes. Retigabine, a new antiepileptic drug, has the potential side effect of inducing a blue/purple pigmentation of the oral mucosa in addition to the skin, lips, nails and retina of the eyes. This article presents a unique case of dyspigmentation present in the oral mucosa of the hard palate which has previously been unreported in the dental literature.
Case presentation
A 70 year old white male presented to a secondary care oral surgery department with an unusual asymptomatic pigmented lesion present in the hard palate of the oral cavity. The pigmentation was remarkable for its distinct blue/purple colouration which was associated with a similar discolouration of the nail beds of the hands. This is believed to be a side effect of the anti-epileptic medication retigabine.
Conclusion
The dental profession and wider healthcare community should be made fully aware of the potential side effect of oral dyspigmentation associated with the novel anti-epileptic medication retigabine. Enhanced knowledge of the causative role of retigabine in dyspigementation of the oral mucosa will allow the practitioner to make an appropriate diagnosis. As far the authors are aware this is reaction is unreported in the dental literature and should be disseminated to the wider oral health professional’s community
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