389 research outputs found

    The importance of reflecting on practice: How personal professional development activities affect perceived teamwork and performance

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    © 2018 John Wiley & Sons Ltd Aims and objectives: To examine the relationships between participation in personal professional development activities (e.g., coaching, mentoring), teamwork and performance; to investigate the mediating and moderating effects of reflective thinking and perceived usefulness of development activities. Background: Professional development is associated with better performance and attitudes towards one's work. This study adds to this research by focusing on understanding this effect and the conditions under which this occurs. Design: Cross-sectional survey study. Methods: Participants were 244 nurses working in a large, metropolitan acute public hospital. They completed a questionnaire consisting of validated measures and provided information on frequency of participation and perceived usefulness of personal professional development activities. We analysed data using regression-based moderated mediation analyses. Results: The relationship between frequency of participation in personal professional development activities and both perceived teamwork and performance was mediated by reflective thinking. Perceived usefulness of development activities moderated the relationship between frequency of participation in personal professional development activities and reflective thinking. Conclusion: Our results highlight the importance of professional development activities that go beyond knowledge- or skill-based training. Activities that cater to nurses’ personal professional development needs are also associated with more positively perceived teamwork and performance. Results provide insights into the mediating mechanisms: Participation in personal professional development activities encouraged reflective thinking, which was associated with better perceived teamwork and performance. This association between personal professional development activities and reflective thinking was even stronger where nurses perceived the activities as useful. Relevance to clinical practice: Personal professional development activities enhance reflection in and on practice as these activities were linked with higher perceived quality of care and teamworking. It is important to ensure that the positive effects of personal professional development activities should target nurses’ professional development needs and need to be perceived as useful by those who undertake them

    Anisotropic magnetotransport of superconducting and normal state in an electron-doped Nd_{1.85}Ce_{0.15}CuO_{4-\delta} single crystal

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    The anisotropic properties of an optimally doped Nd_{1.85}Ce_{0.15}CuO_{4-\delta} single crystal have been studied both below and above the critical temperature Tc via the resistivity measurement in magnetic field H up to 12 T. By scaling the conductivity fluctuation around the superconducting transition, the upper critical field H_{c2}(T) has been determined for field parallel to the c-axis or to the basal ab-plane. The anisotropy factor \gamma={H_c2||ab}/{H_c2||c} is estimated to be about 8. In the normal state (50=<T=<180 K), the magnetoresistance (MR) basically follows an H^2 dependence and for H||c it is almost 10 times larger than that for H||ab. Comparing with hole-doped cuprates it suggests that the optimally doped Nd_{1.85}Ce_{0.15}CuO_{4-\delta} cuprate superconductor has a moderate anisotropy.Comment: 5 pages, 4 figure

    An increase in TcT_c under hydrostatic pressure in the superconducting doped topological insulator Nb0.25_{0.25}Bi2_2Se3_3

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    We report an unexpected positive hydrostatic pressure derivative of the superconducting transition temperature in the doped topological insulator \NBS via dcdc SQUID magnetometry in pressures up to 0.6 GPa. This result is contrary to reports on the homologues \CBS and \SBS where smooth suppression of TcT_c is observed. Our results are consistent with recent Ginzburg-Landau theory predictions of a pressure-induced enhancement of TcT_c in the nematic multicomponent EuE_u state proposed to explain observations of rotational symmetry breaking in doped Bi2_2Se3_3 superconductors.Comment: 5 pages, 5 figure

    Scaling of the Equilibrium Magnetization in the Mixed State of Type-II Superconductors

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    We discuss the analysis of mixed-state magnetization data of type-II superconductors using a recently developed scaling procedure. It is based on the fact that, if the Ginzburg-Landau parameter kappa does not depend on temperature, the magnetic susceptibility is a universal function of H/H_c2(T), leading to a simple relation between magnetizations at different temperatures. Although this scaling procedure does not provide absolute values of the upper critical fieldH_c2(T), its temperature variation can be established rather accurately. This provides an opportunity to validate theoretical models that are usually employed for the evaluation of H_c2(T) from equilibrium magnetization data. In the second part of the paper we apply this scaling procedure for a discussion of the notorious first order phase transition in the mixed state of high temperature superconductors. Our analysis, based on experimental magnetization data available in the literature, shows that the shift of the magnetization accross the transition may adopt either sign, depending on the particular chosen sample. We argue that this observation is inconsistent with the interpretation that this transition always represents the melting transition of the vortex lattice.Comment: 18 pages, 12 figure

    Surface plasmons at single nanoholes in Au-films

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    The generation of surface plasmon polaritons (SPP's) at isolated nanoholes in 100 nm thick Au films is studied using near-field scanning optical microscopy (NSOM). Finite-difference time-domain calculations, some explicitly including a model of the NSOM tip, are used to interpret the results. We find the holes act as point-like sources of SPP's and demonstrate that interference between SPP's and a directly transmitted wave allows for determination of the wavelength, phase, and decay length of the SPP. The near-field intensity patterns can be manipulated by varying the angle and polarization of the incident beam.Comment: 12 pages, 3 figure

    Doping and Irradiation Controlled Vortex Pinning Behavior in BaFe2(As1-xPx)2 Single Crystals

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    We report on the systematic evolution of vortex pinning behavior in isovalent doped single crystals of BaFe2(As1-xPx)2. Proceeding from optimal doped to ovedoped samples, we find a clear transfor- mation of the magnetization hysteresis from a fishtail behavior to a distinct peak effect followed by a reversible magnetization and Bean Livingston surface barriers. Strong point pinning dominates the vortex behavior at low fields whereas weak collective pinning determines the behavior at higher fields. In addition to doping effects, we show that particle irradiation by energetic protons can tune vortex pinning in these materials.Comment: 4 pages, 4 figures,significant change of eraly version, accepted by PRB rapid communication
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