763,672 research outputs found

    Challenging Assumptions about IT skills in Higher Education

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    This paper challenges the idea of 'the digital native' and the subsequent assumption of digital literacy skills amongst higher education students. It offers clear evidence that current student populations come from a wider range of backgrounds than the theory allows for and that the younger student population is also more complex with varying levels of digital literacy experience. It argues that treating students as a homogenous mass is problematic and challenges the idea that generic technology skills are instantly transferable to academic study. The paper concludes with a warning that we are letting down some of our students by the ‘Information Technology (IT) barrier’ within higher education and that we should be focusing on identification of Information Technology (IT) need and IT skills acquisition support rather than assuming it is something students can ‘pick up as they go along’. This will only happen once IT is given the status of a core academic skill along with maths, information literacy and academic communication

    Relaxation of strained silicon on Si0.5Ge0.5 virtual substrates

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    Strain relaxation has been studied in tensile strained silicon layers grown on Si0.5Ge0.5 virtual substrates, for layers many times the critical thickness, using high resolution x-ray diffraction. Layers up to 30 nm thick were found to relax less than 2% by the glide of preexisting 60° dislocations. Relaxation is limited because many of these dislocations dissociate into extended stacking faults that impede the dislocation glide. For thicker layers, nucleated microtwins were observed, which significantly increased relaxation to 14%. All these tensile strained layers are found to be much more stable than layers with comparable compressive strain

    Assessment of the effectiveness of head only and back-of-the-head electrical stunning of chickens

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    The study assesses the effectiveness of reversible head-only and back-of-the-head electrical stunning of chickens using 130–950 mA per bird at 50 Hz AC

    Assessment of the effectiveness of head only and back-of-the-head electrical stunning of chickens

    Get PDF
    The study assesses the effectiveness of reversible head-only and back-of-the-head electrical stunning of chickens using 130–950 mA per bird at 50 Hz AC
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