20,651 research outputs found
Errors in Veterinary Practice: Preliminary Lessons for Building Better Veterinary Teams
Case studies in two typical UK veterinary practices were undertaken to explore teamwork, including interprofessional working. Each study involved one week of whole team observation based on practice locations (reception, operating theatre), one week of shadowing six focus individuals (veterinary surgeons, veterinary nurses and administrators) and a final week consisting of semistructured interviews regarding teamwork. Errors emerged as a finding of the study. The definition of errors was inclusive, pertaining to inputs or omitted actions with potential adverse outcomes for patients, clients or the practice. The 40 identified instances could be grouped into clinical errors (dosing/drugs, surgical preparation, lack of follow-up), lost item errors, and most frequently, communication errors (records, procedures, missing face-to-face communication, mistakes within face-to-face communication). The qualitative nature of the study allowed the underlying cause of the errors to be explored. In addition to some individual mistakes, system faults were identified as a major cause of errors. Observed examples and interviews demonstrated several challenges to interprofessional teamworking which may cause errors, including: lack of time, part-time staff leading to frequent handovers, branch differences and individual veterinary surgeon work preferences. Lessons are drawn for building better veterinary teams and implications for Disciplinary Proceedings considered
Secondary literacy across the curriculum: Challenges and possibilities
This paper discusses the challenges and possibilities attendant upon successfully implementing literacy across the curriculum initiatives â or âschool language policiesâ as they have come to be known - particularly at the secondary or high school level. It provides a theoretical background to these issues, exploring previous academic discussions of school language policies, and highlights key areas of concern as well as opportunity with respect to school implementation of such policies. As such, it provides a necessary conceptual background to the subsequent papers in this special issue, which focus upon the Secondary Schoolsâ Literacy Initiative (SSLI) â a New Zealand funded programme that aims to establish cross-curricular language and literacy policies in secondary schools
Theoretical prediction of spectral and optical properties of bacteriochlorophylls in thermally disordered LH2 antenna complexes
A general approach for calculating spectral and optical properties of
pigment-protein complexes of known atomic structure is presented. The method,
that combines molecular dynamics simulations, quantum chemistry calculations
and statistical mechanical modeling, is demonstrated by calculating the
absorption and circular dichroism spectra of the B800-B850 BChls of the LH2
antenna complex from Rs. molischianum at room temperature. The calculated
spectra are found to be in good agreement with the available experimental
results. The calculations reveal that the broadening of the B800 band is mainly
caused by the interactions with the polar protein environment, while the
broadening of the B850 band is due to the excitonic interactions. Since it
contains no fitting parameters, in principle, the proposed method can be used
to predict optical spectra of arbitrary pigment-protein complexes of known
structure.Comment: ReVTeX4, 11 pages, 9 figures, submitted to J. Chem. Phy
Using a Combination of Micro-Computed Tomography, CAD and 3D Printing Techniques to Reconstruct Incomplete 19th-Century Cantonese Chess Pieces
Anomalous TWTA output power spikes and their effect on a digital satellite communications system
Several 30 GHz, 60 W traveling wave tube amplifiers (TWTA) were manufactured for the NASA Lewis Research Center's High Burst Rate Link Evaluation Terminal Project. An unusual operating problem characterized by anomalous nonperiodic output power spikes, common to all of the TWTAs proved during testing to significantly affect the performance of a digitally-modulated data transmission test system. Modifications made to the TWTAs significantly curtailed the problem and allowed acceptable system performance to be obtained. This paper presents a discussion of the TWTA output power spike problem, possible causes of the problem, and the solutions implemented by the manufacturer which improved the TWTA performance to an acceptable level. The results of the testing done at NASA Lewis on the TWTAs both before and after the improvement made by Hughes are presented, and the effects of the output power spikes on the performance of the test system are discussed
The future of sustainable cities: governance, policy and knowledge
The aim of this special issue is to address a conceptual and empirical gap in the existing literature on sustainable cities. Uniquely, it brings together questions about the âwhatâ (in this case, the content and representation of urban policy) of research on urban sustainability with âhowâ (the social organisation of knowledge and action) through the results of collaborative and comparative work. The special issue contains curated contributions that draw upon the findings of a comparative international project funded by Mistra (Swedish Foundation for Strategic Environmental Research) through the Mistra Urban Futures Centre, based in Gothenburg. The project sought to bring together two questions that are usually treated as separate in existing research approaches. They are the âwhatâ and âhowâ of sustainable citiesâ debates. By working in partnership with local policy-makers, practitioners and universities, each local area entered into a process of collaborative design in order to examine assumptions, expectations, processes and the outcomes of knowledge co-production. This paper introduces the conceptual ideas behind this initiative and so provides a frame for the reader to situate the contributions. It then outlines those articles to draw connections between them and concludes with a short summary of what research and societal lessons can be learnt from the project
Eigenvalue Separation in Some Random Matrix Models
The eigenvalue density for members of the Gaussian orthogonal and unitary
ensembles follows the Wigner semi-circle law. If the Gaussian entries are all
shifted by a constant amount c/Sqrt(2N), where N is the size of the matrix, in
the large N limit a single eigenvalue will separate from the support of the
Wigner semi-circle provided c > 1. In this study, using an asymptotic analysis
of the secular equation for the eigenvalue condition, we compare this effect to
analogous effects occurring in general variance Wishart matrices and matrices
from the shifted mean chiral ensemble. We undertake an analogous comparative
study of eigenvalue separation properties when the size of the matrices are
fixed and c goes to infinity, and higher rank analogues of this setting. This
is done using exact expressions for eigenvalue probability densities in terms
of generalized hypergeometric functions, and using the interpretation of the
latter as a Green function in the Dyson Brownian motion model. For the shifted
mean Gaussian unitary ensemble and its analogues an alternative approach is to
use exact expressions for the correlation functions in terms of classical
orthogonal polynomials and associated multiple generalizations. By using these
exact expressions to compute and plot the eigenvalue density, illustrations of
the various eigenvalue separation effects are obtained.Comment: 25 pages, 9 figures include
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