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Keywords: Physical ergonomics; electrogoniometers; musculoskeletal disorders; order picker EN Physical ergonomics electrogoniometers musculoskeletal disorders order picker S253 S254 2 01/29/21 20191002 NES 191002 1. Concerning the elbow joint, a comfort area between 60 and 100° of flexion can be deduced from the Rapid Upper Limb Assessment (RULA) methodology which aims at providing a score of exposure to WMSDs for a whole-body posture (McAtamney & Corlett, [6]). Conclusions This study aimed to investigate the influence of the type of support (wheeled-based containers vs. cart) on elbow and wrist joint angles while picking orders in a drive-in supermarket. [Extracted from the article]

Objective: The aim of this study was to demonstrate how research on emotion in sport psychology might inform the field of human factors.Background: Human factors historically has paid little attention to the role of emotion within the research on human-system relations. The theories, methods, and practices related to research on emotion within sport psychology might be informative for human factors because fundamentally, sport psychology and human factors are applied fields concerned with enhancing performance in complex, real-world domains.Method: Reviews of three areas of theory and research on emotion in sport psychology are presented, and the relevancy of each area for human factors is proposed: (a) emotional preparation and regulation for performance, (b) an emotional trait explanation for risk taking in sport, and (c) the link between emotion and motor behavior. Finally, there are suggestions for how to continue cross-talk between human factors and sport psychology about research on emotion and related topics in the future.Results: The relevance of theory and research on emotion in sport psychology for human factors is demonstrated.Conclusion: The human factors field and, in particular, research on human-system relations may benefit from a consideration of theory and research on emotion in sport psychology.Application: Theories, methods, and practices from sport psychology might be applied usefully to human factors. [ABSTRACT FROM AUTHOR]

The J/ ψ azimuthal distribution relative to the reaction plane has been measured by the NA50 experiment in Pb-Pb collisions at 158 GeV/nucleon. Various physical mechanisms related to charmonium dissociation in the medium created in the heavy ion collision are expected to introduce an anisotropy in the azimuthal distribution of the observed J/ ψ mesons at SPS energies. Hence, the measurement of J/ ψ elliptic anisotropy, quantified by the Fourier coefficient v2 of the J/ ψ azimuthal distribution relative to the reaction plane, is an important tool to constrain theoretical models aimed at explaining the anomalous J/ ψ suppression observed in Pb-Pb collisions. We present the measured J/ ψ yields in different bins of azimuthal angle relative to the reaction plane, as well as the resulting values of the Fourier coefficient v2 as a function of the collision centrality and of the J/ ψ transverse momentum. The reaction plane has been estimated from the azimuthal distribution of the neutral transverse energy detected in an electromagnetic calorimeter. The analysis has been performed on a data sample of about 100 000 events, distributed in five centrality or pT sub-samples. The extracted v2 values are significantly larger than zero for non-central collisions and are seen to increase with pT. [ABSTRACT FROM AUTHOR]

Charmonium suppression in Pb-Pb collisions at 158 GeV/c per nucleon is investigated in detail with the study of the transverse momentum distributions of J/ψ as a function of the centrality of the collision. It is shown that the observed J/ψ suppression in Pb-Pb interactions is particularly significant mainly at low transverse momentum where it strongly depends on centrality. For peripheral Pb-Pb collisions, the transverse momentum dependence of the J/ψ cross section is, as a function of centrality, qualitatively similar to the dependence observed in p-A and S-U collisions. Comparing peripheral and central Pb-Pb collisions, the data show a relative suppression in the whole pT range although its amplitude significantly decreases with increasing pT and becomes almost pT independent for the highest pT values. [Copyright &y& Elsevier]

We present a new measurement ofproduction in Pb-Pb collisions at 158 GeV/nucleon, from the data sample collected in year 2000 by the NA50 Collaboration, under improved experimental conditions with respect to previous years. With the target system placed in vacuum, the setup was better adapted to study, in particular, the most peripheral nuclear collisions with unprecedented accuracy. The analysis of this data sample shows that thecross-sections ratio measured in the most peripheral Pb-Pb interactions is in good agreement with the nuclear absorption pattern extrapolated from the studies of proton-nucleus collisions. Furthermore, this new measurement confirms our previous observation that thecross-sections ratio departs from the normal nuclear absorption pattern for semi-central Pb-Pb collisions and that this ratio persistently decreases up to the most central collisions. [ABSTRACT FROM AUTHOR]

The production of J/Ψand &Psi′ charmonium states in proton-nucleus interactions has been investigated by the NA50 experiment, at the CERN SPS. High statistics data sets were collected with collisions induced by 450 GeV protons incident on Be, Al, Cu, Ag and W targets. The J/ψand ψ production cross-sections have been determined for each p-A system and their dependences on the nucleus size have been studied, leading to the so-called normal nuclear absorption. Comparing the two patterns we see that the nuclear absorption is stronger for the &Psi′ than for the J/Ψ. Given the high statistics of the data samples, the xF (or rapidity) differential cross-sections of the J/Ψ and &Psi′ states have also been studied, for each of the target nuclei. [ABSTRACT FROM AUTHOR]