900 research outputs found

    How can coaching improve the effectiveness of Performance Management Conversations?

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    The purpose of this study was to establish how the use of coaching by managers within appraisal conversations could enhance performance at work. The motivation for the study was directed at improving performance related conversations between managers and employees. These conversations may be formal appraisals, or interim reviews. From a literature perspective, there is a high volume of empirical and practitioner literature in the area of performance management, including appraisals. However, there is a lack of empirical and practitioner material covering performance management when integrated with the manager as coach concept and when this concept is treated as an individual theme. Therefore, the evaluation of the performance management and manager as coach literature provided confirmation of the potential for this study. In addition, where empirical work is available, there is a tendency for this to have an employer focus, using the perceptions of managers and HR professionals. In this study, contributions were gathered from the employee as well as those of the manager and the HR professional. The research strategy adopted a grounded theory approach with research participants from both the private and public sector. Data collection comprised four stages, synonymous with grounded theory, and included semi-structured interviews and questionnaires. Data analysis, using constant comparison, enabled the development of further data collection and analysis through an additional questionnaire that was completed by participating managers. This enabled the collection of rich data demonstrating the value of the manager as coach concept within an appraisal conversation. The findings reveal appraisal conversations can deliver a more meaningful and value adding result for all stakeholders. Conceptually, the research delivers a theoretical model of the manager as coach concept within an appraisal conversation. The model identifies, the manager as coach, as a key enabler of individual performance improvement, which is also sustainable over the longer term. The model also illustrates a range of cultural factors that either enable or restrain the manager as coach concept in the appraisal context. Furthermore, the research establishes a range of benefits that enable the delivery of a quality conversation

    Assessing the Effectiveness of Automated Emotion Recognition in Adults and Children for Clinical Investigation

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    Recent success stories in automated object or face recognition, partly fuelled by deep learning artificial neural network (ANN) architectures, has led to the advancement of biometric research platforms and, to some extent, the resurrection of Artificial Intelligence (AI). In line with this general trend, inter-disciplinary approaches have taken place to automate the recognition of emotions in adults or children for the benefit of various applications such as identification of children emotions prior to a clinical investigation. Within this context, it turns out that automating emotion recognition is far from being straight forward with several challenges arising for both science(e.g., methodology underpinned by psychology) and technology (e.g., iMotions biometric research platform). In this paper, we present a methodology, experiment and interesting findings, which raise the following research questions for the recognition of emotions and attention in humans: a) adequacy of well-established techniques such as the International Affective Picture System (IAPS), b) adequacy of state-of-the-art biometric research platforms, c) the extent to which emotional responses may be different among children or adults. Our findings and first attempts to answer some of these research questions, are all based on a mixed sample of adults and children, who took part in the experiment resulting into a statistical analysis of numerous variables. These are related with, both automatically and interactively, captured responses of participants to a sample of IAPS pictures

    Polyimide Matrix composites: Polyimidesulfone/LARC-TPI (1:1) blend

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    Polyimide matrix composites were fabricated from unidirectional unsized AS-4 carbon fiber and a doped 1:1 blend of two polyimides: benzophenone dianhydride-3,3'-diamino diphenylsulfone (PISO2) and benzophenone dianhydride-3,3'-diamino benzophenone (LARC-TPI). To enhance melt flow properties, the molecular weight of the PISO2 was controlled by end-capping with phthalic anhydride and addition of 5 percent by weight p-phenylene diamine-phthalic anhydride bisamic acid dopant. Prepreg was drum-wound using a diglyme slurry comprised of the soluble polyamideacid of PISO2, the soluble bisamideacid of the dopant, and the insoluble imidized LARC-TPI powder. Melt flow studies with a rotary rheometer and parallel plate plastometer on neat resin and prepreg helped develop an optimum cure cycle. Composite mechanical properties at room and elevated temperatures, dry and moisture-saturated, were evaluated, including short beam shear strength and flexure, tensile, shear, and compression properties. Two 18 in. x 24 in. skin-stringer panels were fabricated, one of which was tested in compression to failure

    Sea-quark flavor asymmetry in the nucleon from a relativistic analysis of the Drell-Yan scattering off nuclei

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    It is shown that accounting for the relativistic structure of the deuteron allows to explain the ratio of the Drell-Yan pair production cross-section at the low Bjorken xx off the deuteron and the proton. Thus, the sea quark distributions in the nucleon should be studied with accounting for the effects of the relativistic structure of the deuteron. The suggested approach reduces theoretical uncertainty in extracting the ratio uˉ/dˉ\bar u/\bar d from the data and it is important for the clarification of the nature of the sea quark asymmetry in the nucleon.Comment: 4 pages, 1 figures, Chiral Symmetry in Hadron and Nuclear Physics November 13-16, 2007, Osak

    Educating renal nurses - inferior vena caval ultrasound for intravascular volume assessment

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    Aim: Volume status of haemodialysis patients can be evaluated by trained doctors using ultrasound (US) of the inferior vena cava (IVC). To date, renal nurses have not been taught this skill. As part of a larger study exploring the use of US by renal nurses we developed an educational program to ensure that renal nurses received adequate US training to attain competence in IVC ultrasound (IVC-US). Methods: The educational program was divided into four parts. Initially a clinical US expert delivered the necessary theoretical and then practical components of the program. After this the nurse undertook a period of self-directed US practice (100 scans). During this period three formative reviews of the recorded scan clips with feedback occurred. Specific feedback covered US technique, image optimisation and acquisition and image interpretation. Finally, as a summative assessment the nurse performed and interpreted 60 scans on 10 dialysis patients. These scans were independently assessed for quality and the nurse interpretations reviewed for accuracy, prior to deeming the candidate competent to independently perform IVC-US. Findings: Ultrasound education involves knowledge and skill acquisition. Initial theoretical and practical education must be translated into competence through task repetition and targeted feedback. A staged educational program that involves these components is likely to be successful. The rate for US skill acquisition varies and a summative assessment ensuring competence prior to independent scanning is important. Conclusions: This four-step program demonstrated that it is feasible to educate a renal nurse in IVC-US for intravascular volume assessment

    Hunting for CDF Multi-Muon "Ghost" Events at Collider and Fixed-Target Experiments

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    In 2008 the CDF collaboration discovered a large excess of events containing two or more muons, at least one of which seemed to have been produced outside the beam pipe. We investigate whether similar "ghost" events could (and should) have been seen in already completed experiments. The CDF di-muon data can be reproduced by a simple model where a relatively light X particle undergoes four-body decay. This model predicts a large number of ghost events in Fermilab fixed-target experiments E772, E789 and E866, applying the cuts optimized for analyses of Drell-Yan events. A correct description of events with more than two muons requires a more complicated model, where two X particles are produced from a very broad resonance Y. This model can be tested in fixed-target experiments only if the cut on the angles, or rapidities, of the muons can be relaxed. Either way, the UA1 experiment at the CERN ppbar collider should have observed O(100) ghost events.Comment: 15 pages, 9 figure

    Light quark distributions in the proton sea

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    We use the meson cloud model to calculate dˉ(x)uˉ(x)\bar{d}(x) - \bar{u}(x) and dˉ(x)/uˉ(x) \bar{d}(x)/\bar{u}(x) in the proton. We show that a modification of the symmetric, perturbative part of the light quark sea provides better agreement with the ratio $ \bar{d}(x)/\bar{u}(x).Comment: 4 pages, 2 figures, LaTeX. Talk presented at PANIC 9

    Parton distributions in the proton and pion

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    We use detailed balance for a hadron composed of quark and gluon Fock states to obtain parton distributions in the proton and pion on the basis of a simple statistical model.Comment: 13 pages, 5 figure

    Non-singlet QCD analysis of F_2(x,Q^2) up to NNLO

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    The significance of NNLO (3-loop) QCD contributions to the flavor non-singlet sector of F_2^ep and F_2^ed has been studied as compared to uncertainties (different factorization schemes, higher twist and QED contributions) of standard NLO (and LO) QCD analyses. The latter effects turn out to be comparable in size to the NNLO contributions. Therefore the minute NNLO effects are not observable with presently available data on non-singlet structure functions.Comment: 14 pages, 2 figure
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