1,892 research outputs found

    Closing the Loop: Creating Deliverables That Add Value

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    As special collections librarians and liaison librarians work together to create in­novative experiences working with primary source material, it is important to remember students have much to offer in the collaborative design process. In this case study, Prudence Doherty, a special collections librarian, and Daniel DeSanto, an instruction librarian, describe a project they initiated and implemented with upper-level education majors at the University of Vermont (UVM). The students were pre-service teachers (student teachers working toward degree and licensure) enrolled in Social Education and Social Studies, a course that focuses on teaching methods, assessment alternatives, and resources used in the elementary (K–4) classroom. The project gave the pre-service teachers an opportunity to work with three digital collections in order to design lesson plans for elementary-aged stu­dents. The project closed the loop of learn, create, and teach by requiring students to learn evaluative approaches to working with historical material and then create lesson plans based on those approaches. By creating professional resources for other teachers, the students added value to the digital collections

    Mild acetabular dysplasia and risk of osteoarthritis of the hip : a case-control study

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    Objective To determine whether mild variation in acetabular depth (AD) and shape is a risk factor for osteoarthritis (OA) of the hip. Methods The unaffected contralateral hip of patients with unilateral hip OA was compared with hips of asymptomatic controls without hip OA, derived from the Nottingham Genetics Osteoarthritis and Lifestyle case–control study. Standardised anteroposterior x-rays of the pelvis were used to measure centre edge (CE) angle and AD. Cut-off points for narrow CE angle and shallow AD were calculated from the control group (mean −1.96×SD). The relative risk of hip OA associated with each feature was estimated using OR and 95% CI and adjusted risks were calculated by logistic regression. Results In controls, both the CE angle and the AD were lower in the left hip than in the right hip. The CE angle related to age in both hips, and AD of the right hip was lower in men than in women. The contralateral unaffected hip in patients with unilateral hip OA had a decreased CE angle and AD compared with controls, irrespective of side. The lowest tertile of the CE angle in contralateral hips was associated with an eightfold risk of OA (aOR 8.06, 95% CI 4.87 to 13.35) and the lowest tertile of AD was associated with a 2.5-fold risk of OA (aOR 2.53, 95% CI 1.28 to 5.00). Significant increases in the risk of OA were also found as the CE angle and AD decreased

    Thermodynamics of de Sitter black holes with a conformally coupled scalar field

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    We study the thermodynamics of de Sitter black holes with a conformally coupled scalar field. The geometry is that of the ``lukewarm'' Reissner-Nordstrom-de Sitter black holes, with the event and cosmological horizons at the same temperature. This means that the region between the event and cosmological horizons can form a regular Euclidean instanton. The entropy is modified by the non-minimal coupling of the scalar field to the geometry, but can still be derived from the Euclidean action, provided suitable modifications are made to deal with the electrically charged case. We use the first law as derived from the isolated horizons formalism to compute the local horizon energies for the event and cosmological horizons.Comment: 9 pages, 2 figures, REVTEX. Minor changes, accepted for publication in Phys. Rev.

    Who put the cult in culture?

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    This paper subjects the management blockbuster 'Built to Last' (Collins & Porras 1992) to paradigmic analysis through the medium of the Burrell & Morgan (1979) framework. The interest is to explore the extent to which such a popular text could equally appeal to both populist and evidence-based business academic audiences, and to explore how the authors' have engineered this dual appeal. The authors are explicit as to the research aims and research design underlying their inquiry, and are not reticent in making claims for the intellectual robustness and practical transferability of findings derived from their innovative research approach. This clarity of research purpose greatly facilitates the process of assessing the extent to which the authors satisfy their own criteria - an assessment which the authors themselves challenge the reader to engage with in their opening ‘methods’ chapter

    The evolution of one practitioner's coach approach: taking the coaching turn

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    This largely autoethnographic paper explores the early trajectory of one consultant’s career through the seventies and eighties, seeking to detect the point at which this practice took the ‘coaching turn’. The purpose of conducting this piece of personal exploration is to discover what the core of a ‘coach approach’ might have comprised before coaching become professionalized and codified; and perhaps to ask what of the original inspiration behind the coaching impulse might have been lost in the process of professionalization. Comparisons are then drawn between this historical evolution of coaching practice and the choices facing coaches currently setting out to establish their practice in a contemporary setting; and to ask what they might take from this history

    Bell inequalities for three systems and arbitrarily many measurement outcomes

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    We present a family of Bell inequalities for three parties and arbitrarily many outcomes, which can be seen as a natural generalization of the Mermin Bell inequality. For a small number of outcomes, we verify that our inequalities define facets of the polytope of local correlations. We investigate the quantum violations of these inequalities, in particular with respect to the Hilbert space dimension. We provide strong evidence that the maximal quantum violation can only be reached using systems with local Hilbert space dimension exceeding the number of measurement outcomes. This suggests that our inequalities can be used as multipartite dimension witnesses.Comment: v1 6 pages, 4 tables; v2 Published version with minor typos correcte

    Nonlinear Quantum Dynamics

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    The vast majority of the literature dealing with quantum dynamics is concerned with linear evolution of the wave function or the density matrix. A complete dynamical description requires a full understanding of the evolution of measured quantum systems, necessary to explain actual experimental results. The dynamics of such systems is intrinsically nonlinear even at the level of distribution functions, both classically as well as quantum mechanically. Aside from being physically more complete, this treatment reveals the existence of dynamical regimes, such as chaos, that have no counterpart in the linear case. Here, we present a short introductory review of some of these aspects, with a few illustrative results and examples.Comment: 13 pages, 3 figures, invited talk at the NATO Advanced Workshop, "Nonlinear Dynamics and Fundamental Interactions," (October, 2004, Tashkent
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