21,918 research outputs found

    Rationality of the Anomalous Dimensions in N=4 SYM theory

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    We reconsider the general constraints on the perturbative anomalous dimensions in conformal invariant QFT and in particular in N=4 SYM with gauge group SU(N_c). We show that all the perturbative corrections to the anomalous dimension of a renormalized gauge invariant local operator can be written as polynomials in its one loop anomalous dimension. In the N=4 SYM theory the coefficients of these polynomials are rational functions of the number of colours N_c.Comment: 20 pages, LaTe

    Out of the comfort zone: Enhancing work-based learning about employability through student reflection on work placements

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    This paper examines the work-based learning about employability reported by 26 undergraduate Geography and Environmental Management students on part-time, unpaid work placements. The students' “reflective essays” emphasized their learning more in terms of emotional challenges than in terms of skills, as being pushed out of their “comfort zone” forced them to be more proactive, tackle unfamiliar activities and develop emotionally. This conceptualizes employability as more than skills and as integrative, reflective and adaptable. This also emphasizes that higher education institutions must support employability and work-based learning outside the academic zone and better integrate off-campus work-based learning with on-campus reflection

    Blurring the boundaries: Prosumption, circularity and online sustainable consumption through Freecycle

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    © The Author(s) 2015. This article explores the digital exchange and moral ordering of sustainable and ethical consumption in online Freecycle groups. Through interactive exchanges in digital (online posts) and material (consumer items) modes, Freecycling blurs three common binaries in analyses of consumption: (1) consumption/production, (2) digital/material and (3) mainstream/alternative. Drawing on Ritzer's notion of 'implosions' as well as practice theory, I show that Freecycling practices reimagine and reproduce both products and consumers, practising prosumption through mixed digital and material practices in a performative economy, and how mainstream and alternative ways of consuming are entangled in pursuit of more sustainable, ethical consumption. This challenges us to think beyond these traditional binaries and to conceptualise a more blurred, less analytically clean and more circular approach to studying consumption

    Plurilingual treaties: aspects of interpretation

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    The chapter explores the historical background to plurilingual treaty-making as well as the practice of the PCIJ and ICJ to the interpretation of plurilingual treaties. The chapter includes a detailed examination of Article 33 of the Vienna Convention of the Law of Treaties and the effect of this article on ICJ practice