590 research outputs found
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Lighting, well-being and work performance: A review of the literature
Commissioned White Paper Report for Philips International
Robust a posteriori error estimators for mixed approximation of nearly incompressible elasticity
This paper is concerned with the analysis and implementation of robust finite
element approximation methods for mixed formulations of linear elasticity
problems where the elastic solid is almost incompressible. Several novel a
posteriori error estimators for the energy norm of the finite element error are
proposed and analysed. We establish upper and lower bounds for the energy error
in terms of the proposed error estimators and prove that the constants in the
bounds are independent of the Lam\'{e} coefficients: thus the proposed
estimators are robust in the incompressible limit. Numerical results are
presented that validate the theoretical estimates. The software used to
generate these results is available online.Comment: 23 pages, 9 figure
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Comparing two attributional models of job performance in retail sales: A field study
Research investigating attributional style and job performance among sales staff has been limited by its focus on specific sales roles: notably selling insurance by telephone. Important questions therefore remain regarding the mechanism by which attributions influence job performance in sales roles more generally. This paper describes a field study comparing two attributional models of job performance: (1) a learned helplessness (LH) model, and (2) an achievement motivation (AM) model. Managers' performance ratings were collected for 452 retail sales assistants who completed a job-specific attribution questionnaire and a work-satisfaction questionnaire. Results indicate that sales assistants who made more internalcontrollable attributions for positive outcomes received higher performance ratings (r =.20, p<.01) and were more satisfied in their work (r =.12, p< .05). The findings provide support for an AM model of job performance among retail sales assistants. They suggest that more successful sales assistants proactively manage their environment in order to create opportunities for successful interactions with customers
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"Trust me...": Psychological and behavioral predictors of perceived physician empathy
A sociocognitive model of distal and proximal predictors of empathic judgments was tested among 100 physicians. The authors hypothesized that physician perceived control would affect empathy ratings via physician communication style. Specifically, physicians with high perceived control would use more open communication and be rated as more empathic. Physicians with low perceived control would use a controlling communication style and be rated as less empathic. Physicians completed a medical attribution questionnaire prior to a structured patient consultation exercise, during which patients and assessors rated physician empathy. The exercise was audiotaped, transcribed, and content analyzed for verbal behaviors. Support was found for the hypotheses; however, patients, but not medical assessors, associated empathy with reassurance and provision of medical information
IFISS3D: A computational laboratory for investigating finite element approximation in three dimensions
Half-life of the electron-capture decay of 97Ru: Precision measurement shows no temperature dependence
We have measured the half-life of the electron-capture (ec) decay of 97Ru in
a metallic environment, both at low temperature (19K), and also at room
temperature. We find the half-lives at both temperatures to be the same within
0.1%. This demonstrates that a recent claim that the ec decay half-life for 7Be
changes by $0.9% +/- 0.2% under similar circumstances certainly cannot be
generalized to other ec decays. Our results for the half-life of 97Ru,
2.8370(14)d at room temperature and 2.8382(14)d at 19K, are consistent with,
but much more precise than, previous room-temperature measurements. In
addition, we have also measured the half-lives of the beta-emitters 103Ru and
105Rh at both temperatures, and found them also to be unchanged.Comment: 6 pages, 6 figure
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