3,412 research outputs found

    Final evaluation of the saving gateway 2 pilot: main report

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    The Saving Gateway is a government initiative aimed at encouraging savings behaviour among people who do not usually save. Each pound placed into a Saving Gateway account is matched by the government at a certain rate and up to a monthly contribution limit. Matching provides a transparent and understandable incentive for eligible individuals to place funds in an account

    An artificial intelligence approach to predicting personality types in dogs

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    Canine personality and behavioural characteristics have a significant influence on relationships between domestic dogs and humans as well as determining the suitability of dogs for specific working roles. As a result, many researchers have attempted to develop reliable personality assessment tools for dogs. Most previous work has analysed dogs’ behavioural patterns collected via questionnaires using traditional statistical analytic approaches. Artificial Intelligence has been widely and successfully used for predicting human personality types. However, similar approaches have not been applied to data on canine personality. In this research, machine learning techniques were applied to the classification of canine personality types using behavioural data derived from the C-BARQ project. As the dataset was not labelled, in the first step, an unsupervised learning approach was adopted and K-Means algorithm was used to perform clustering and labelling of the data. Five distinct categories of dogs emerged from the K-Means clustering analysis of behavioural data, corresponding to five different personality types. Feature importance analysis was then conducted to identify the relative importance of each behavioural variable’s contribution to each cluster and descriptive labels were generated for each of the personality traits based on these associations. The five personality types identified in this paper were labelled: “Excitable/Hyperattached”, “Anxious/Fearful”, “Aloof/Predatory”, “Reactive/Assertive”, and “Calm/Agreeable”. Four machine learning models including Support Vector Machine (SVM), K-Nearest Neighbour (KNN), Naïve Bayes, and Decision Tree were implemented to predict the personality traits of dogs based on the labelled data. The performance of the models was evaluated using fivefold cross validation method and the results demonstrated that the Decision Tree model provided the best performance with a substantial accuracy of 99%. The novel AI-based methodology in this research may be useful in the future to enhance the selection and training of dogs for specific working and non-working roles

    Disruption of spinal cord white matter and sciatic nerve geometry inhibits axonal growth in vitro in the absence of glial scarring

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    BACKGROUND: Axons within the mature mammalian central nervous system fail to regenerate following injury, usually resulting in long-lasting motor and sensory deficits. Studies involving transplantation of adult neurons into white matter implicate glial scar-associated factors in regeneration failure. However, these studies cannot distinguish between the effects of these factors and disruption of the spatial organization of cells and molecular factors (disrupted geometry). Since white matter can support or inhibit neurite growth depending on the geometry of the fiber tract, the present study sought to determine whether disrupted geometry is sufficient to inhibit neurite growth. RESULTS: Embryonic chick sympathetic neurons were cultured on unfixed longitudinal cryostat sections of mature rat spinal cord or sciatic nerve that had been crushed with forceps ex vivo then immediately frozen to prevent glial scarring. Neurite growth on uncrushed portions of spinal cord white matter or sciatic nerve was extensive and highly parallel with the longitudinal axis of the fiber tract but did not extend onto crushed portions. Moreover, neurite growth from neurons attached directly to crushed white matter or nerve tissue was shorter and less parallel compared with neurite growth on uncrushed tissue. In contrast, neurite growth appeared to be unaffected by crushed spinal cord gray matter. CONCLUSIONS: These observations suggest that glial scar-associated factors are not necessary to block axonal growth at sites of injury. Disruption of fiber tract geometry, perhaps involving myelin-associated neurite-growth inhibitors, may be sufficient to pose a barrier to regenerating axons in spinal cord white matter and peripheral nerves

    Failing to Engage: Parents’ Acceptance of the Promotion of Unhealthy Foods to Children

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    Six focus groups were conducted with parents and children to explore issues relating to the promotion of unhealthy foods to children. While general discontent with food advertising was expressed by parents and children, none of the parents reported ever making a formal complaint and most exhibited a begrudging acceptance of the current rates of advertising of unhealthy foods and the manner in which these foods are promoted. The primary reasons for this acceptance were found to be (i) an understanding that businesses need to promote their products to ensure their survival, (ii) an assumption that parents should be capable of overcoming the negative effects of advertising, (iii) the perceived value of competitions, toys, and other give-aways, and (iv) the increasing availability of healthy product variations

    Exploring the use of strategic frameworks in dental practice

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    This paper explores the use of strategic frameworks in NHS and private dental practice. It reviews the policy context of dentistry and suggests the challenges in this context will require dental practices to prioritise understanding and engagement with a strategic approach. A strategic approach will be required in order to enhance and improve performance. Two specific strategic frameworks will be explored in terms of their relevance to NHS and private dental practic

    MRI Techniques for Cardiovascular Imaging

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    Over the last several years, cardiovascular MRI has benefited from a number of technical advances which have improved routine clinical imaging techniques. As a result, MRI is now well positioned to realize its longstanding promise of becoming the comprehensive cardiac imaging test of choice in many clinical settings. This may be achieved using a combination of basic advanced techniques. In this overview, the basic cardiac MRI techniques which are clinically useful are reviewed, and the recent technical advances which are clinically promising are described. These advances include routine black blood and cine bright blood techniques that are high speed (slice), multislice whole heart perfusion imaging methods, and recently emerging real-time imaging methodologies. J Magn. Reson. Imaging 1999;10:590–601. © 1999 Wiley-Liss, Inc

    Observations of the Eastern Maine Coastal Current and Its Offshore Extensions in 1994

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    Cold surface temperatures, reflecting Scotian Shelf origins and local tidal mixing, serve as a tracer of the Eastern Maine Coastal Current and its offshore extensions, which appear episodically as cold plumes erupting from the eastern Maine shelf. A cold water plume emanating from the Eastern Maine Coastal Current in May 1994 was investigated using advanced very high resolution radiometer (AVHRR) imagery, shipboard surveys of physical and biochemical properties, and satellite-tracked drifters. Evidence is presented that suggests that some of the plume waters were entrained within the cyclonic circulation over Jordan Basin, while the major portion participated in an anticyclonic eddy at the distal end of the plume. Calculations of the nitrate transported offshore by the plume show that this feature can episodically export significant quantities of nutrients from the Eastern Maine Coastal Current to offshore regions that are generally nutrient depleted during spring-summer. A series of AVHRR images is used to document the seasonal along-shelf progression of the coastal plume separation point. We speculate on potential causes and consequences of plume separation from the coastal current and suggest that this feature may be an important factor influencing the patterns and overall biological productivity of the eastern Gulf of Maine

    Observations of the Eastern Maine Coastal Current and Its Offshore Extensions in 1994

    Get PDF
    Cold surface temperatures, reflecting Scotian Shelf origins and local tidal mixing, serve as a tracer of the Eastern Maine Coastal Current and its offshore extensions, which appear episodically as cold plumes erupting from the eastern Maine shelf. A cold water plume emanating from the Eastern Maine Coastal Current in May 1994 was investigated using advanced very high resolution radiometer (AVHRR) imagery, shipboard surveys of physical and biochemical properties, and satellite-tracked drifters. Evidence is presented that suggests that some of the plume waters were entrained within the cyclonic circulation over Jordan Basin, while the major portion participated in an anticyclonic eddy at the distal end of the plume. Calculations of the nitrate transported offshore by the plume show that this feature can episodically export significant quantities of nutrients from the Eastern Maine Coastal Current to offshore regions that are generally nutrient depleted during spring-summer. A series of AVHRR images is used to document the seasonal along-shelf progression of the coastal plume separation point. We speculate on potential causes and consequences of plume separation from the coastal current and suggest that this feature may be an important factor influencing the patterns and overall biological productivity of the eastern Gulf of Maine

    What do students know and understand about the Holocaust? Evidence from English secondary schools

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    This research report has been written under the auspices of the University College London (UCL) Centre for Holocaust Education. The Centre is part of the UCL Institute of Education – currently the world’s leading university for education – and is comprised of a team of researchers and educators from a variety of different disciplinary fields. The Centre works in partnership with the Pears Foundation who, together with the Department for Education, have co-funded its operation since it was first established in 2008. A centrally important principle of all activity based at the UCL Centre for Holocaust Education is that, wherever possible, classroom practice should be informed by academic scholarship and relevant empirical research. In 2009, Centre staff published an extensive national study of secondary school teachers’ experience of and attitudes towards teaching about the Holocaust (Pettigrew et al. 2009). This new report builds on that earlier work by critically examining English school students’ knowledge and understanding of this history. In both cases, research findings have been – and will continue to be – used to develop an innovative and ground-breaking programme of continuing professional development (CPD) for teachers and educational resources that are uniquely responsive to clearly identified classroom needs. The UCL Centre for Holocaust Education is the only institution of its kind, both within the United Kingdom and internationally, where pioneering empirical research is placed at the heart of work to support teachers and their students encountering this profoundly important yet complex and challenging subject in schools. The Centre offers a wide-ranging educational programme appropriate to teachers at all stages of their careers through a carefully constructed ‘pathway of professional development’. This provides opportunities for individuals to progressively deepen their knowledge and improve their practice. It offers a national programme of Initial Teacher Education in Holocaust education and a variety of in-depth and subject-specific CPD. In addition, the Centre also offers online distance learning facilities, including a fully accredited taught Masters-level module The Holocaust in the Curriculum. Through its Beacon School programme, Centre staff work intensively with up to 20 schools across England each year in order to recognise and further develop exemplary whole-school approaches and effective pedagogy. All of the courses and classroom materials developed by the UCL Centre for Holocaust Education are available free of charge to teachers working in England’s statefunded secondary schools. Further information can be found at www.ioe.ac.uk/holocaust
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