3,404 research outputs found

    Organizational Climate and Company Productivity: the Role of Employee Affect and Employee Level

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    Consistent with a growing number of models about affect and behaviour and with arecognition that perception alone provides no impetus for action, it was predicted thatassociations between company climate and productivity would be mediated by average levelof job satisfaction. In a study of 42 manufacturing companies, subsequent productivity wassignificantly correlated in controlled analyses with eight aspects of organizational climate(e.g. skill development and concern for employee welfare) and also with average jobsatisfaction. The mediation hypothesis was supported in hierarchical multiple regressions forseparate aspects of climate. In addition, an overall analysis showed that companyproductivity was more strongly correlated with those aspects of climate that had strongersatisfaction loadings. A second prediction, that managers¿ perceptions of climate would bemore closely linked to company productivity than would those of non-managers, was notsupported. However, managers¿ assessments of most aspects of their company¿s climatewere significantly more positive than those of non-managers.Organizational structure, organizational climate, employee welfare, manager,productivity.

    Human Performance Assessments in an Army ROTC Cadet Population

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    Alien Registration- Warr, Lillie M. (Portland, Cumberland County)

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    https://digitalmaine.com/alien_docs/21717/thumbnail.jp

    Beta function and infrared renormalons in the exact Wilson renormalization group in Yang-Mills theory

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    We discuss the relation between the Gell-Mann-Low beta function and the ``flowing couplings'' of the Wilsonian action S_\L[\phi] of the exact renormalization group (RG) at the scale \L. This relation involves the ultraviolet region of \L so that the condition of renormalizability is equivalent to the Callan-Symanzik equation. As an illustration, by using the exact RG formulation, we compute the beta function in Yang-Mills theory to one loop (and to two loops for the scalar case). We also study the infrared (IR) renormalons. This formulation is particularly suited for this study since: ii) \L plays the r\^ole of a IR cutoff in Feynman diagrams and non-perturbative effects could be generated as soon as \L becomes small; iiii) by a systematical resummation of higher order corrections the Wilsonian flowing couplings enter directly into the Feynman diagrams with a scale given by the internal loop momenta; iiiiii) these couplings tend to the running coupling at high frequency, they differ at low frequency and remain finite all the way down to zero frequency.Comment: 19 pages, 6 figures, LaTex, uses epsfig, rotatin

    Spontaneous symmetry breaking with Wilson renormalization group

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    We study the conditions under which a symmetry is spontaneously broken in the Wilson renormalization group formulation. Both for a global and local symmetry, the result is that in perturbation theory one has to perform a fine tuning of the boundary conditions for the flow of the relevant couplings. We consider in detail the discrete Z2Z_2 case and the Abelian Higgs model.Comment: 19 pages, latex, no figure

    A method to correct differential nonlinearities in subranging analog-to-digital converters used for digital gamma-ray spectroscopy

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    The influence on γ\gamma-ray spectra of differential nonlinearities (DNL) in subranging, pipelined analog-to-digital converts (ADCs) used for digital γ\gamma-ray spectroscopy was investigated. The influence of the DNL error on the γ\gamma-ray spectra, depending on the input count-rate and the dynamic range has been investigated systematically. It turned out, that the DNL becomes more significant in γ\gamma-ray spectra with larger dynamic range of the spectroscopy system. An event-by-event offline correction algorithm was developed and tested extensively. This correction algorithm works especially well for high dynamic ranges

    Human Performance Assessments in Cadet Populations

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    This study assessed potential physiological differences between the Ranger Challenge (RC) Competition team and junior year cadets in an Army Reserve Officer Training Corps (ROTC) program. The method included: RC (m = 11, f = 2) and junior year cadets (m = 7, f = 3) were assessed in the following areas: 1) quickness and agility (5-10-5 shuttle run), 2) total-body power (standing broad jump), and 3) grip strength (hand grip dynamometry) assessed. The 5-10-5 shuttle run was performed twice (opening once to the left and once to the right). The standing broad jump required that cadets stand with their toes behind a line, perform a maximum of three preparatory movements, triple extend their knees, hips, and ankles while using their upper body to propel them as far forward as possible. After the jump the distanced reached was measured from the line to the heel of the nearest foot. Hand grip dynamometry was performed once on each hand. The cadet held the dynamometer out to his or her side and squeezed it as they lowered it to their hip. The results were that there were no significant differences between groups for the 5-10-5 shuttle run (p = 0.91), standing broad jump (p = 0.49), or grip strength (p = 0.31). RC did not outperform

    Renormalization group flow for SU(2) Yang-Mills theory and gauge invariance

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    We study the formulation of the Wilson renormalization group (RG) method for a non-Abelian gauge theory. We analyze the simple case of SU(2)SU(2) and show that the local gauge symmetry can be implemented by suitable boundary conditions for the RG flow. Namely we require that the relevant couplings present in the physical effective action, \ie the coefficients of the field monomials with dimension not larger than four, are fixed to satisfy the Slavnov-Taylor identities. The full action obtained from the RG equation should then satisfy the same identities. This procedure is similar to the one we used in QED. In this way we avoid the cospicuous fine tuning problem which arises if one gives instead the couplings of the bare Lagrangian. To show the practical character of this formulation we deduce the perturbative expansion for the vertex functions in terms of the physical coupling gg at the subtraction point μ\mu and perform one loop calculations. In particular we analyze to this order some ST identities and compute the nine bare couplings. We give a schematic proof of perturbative renormalizability.Comment: 25 pages + 4 figures appended as PostScript file, LaTeX style, UPRF 93-388, explanations adde

    BRS symmetry for Yang-Mills theory with exact renormalization group

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    In the exact renormalization group (RG) flow in the infrared cutoff Λ\Lambda one needs boundary conditions. In a previous paper on SU(2)SU(2) Yang-Mills theory we proposed to use the nine physical relevant couplings of the effective action as boundary conditions at the physical point Λ=0\Lambda=0 (these couplings are defined at some non-vanishing subtraction point μ≠0\mu \ne 0). In this paper we show perturbatively that it is possible to appropriately fix these couplings in such a way that the full set of Slavnov-Taylor (ST) identities are satisfied. Three couplings are given by the vector and ghost wave function normalization and the three vector coupling at the subtraction point; three of the remaining six are vanishing (\eg the vector mass) and the others are expressed by irrelevant vertices evaluated at the subtraction point. We follow the method used by Becchi to prove ST identities in the RG framework. There the boundary conditions are given at a non-physical point Λ=Λ′≠0\Lambda=\Lambda' \ne 0, so that one avoids the need of a non-vanishing subtraction point.Comment: 22 pages, LaTeX style, University of Parma preprint UPRF 94-41
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