3,404 research outputs found
Organizational Climate and Company Productivity: the Role of Employee Affect and Employee Level
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.
Alien Registration- Warr, Lillie M. (Portland, Cumberland County)
https://digitalmaine.com/alien_docs/21717/thumbnail.jp
Beta function and infrared renormalons in the exact Wilson renormalization group in Yang-Mills theory
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: )
\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; ) 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; ) 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
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 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
The influence on -ray spectra of differential nonlinearities (DNL) in
subranging, pipelined analog-to-digital converts (ADCs) used for digital
-ray spectroscopy was investigated. The influence of the DNL error on
the -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 -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
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
We study the formulation of the Wilson renormalization group (RG) method for
a non-Abelian gauge theory. We analyze the simple case of 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 at the subtraction point
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
In the exact renormalization group (RG) flow in the infrared cutoff
one needs boundary conditions. In a previous paper on Yang-Mills theory
we proposed to use the nine physical relevant couplings of the effective action
as boundary conditions at the physical point (these couplings are
defined at some non-vanishing subtraction point ). 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 , 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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