Properties of the Z(3) Interface in (2+1)-D SU(3) Gauge Theory

A study is made of some properties of this interface in the SU(3) pure gauge theory in 2+1 dimensions. At high temperatures, the interface tension is measured and shows agreement with the perturbative prediction. Near the critical temperature, the behaviour of the interface is examined, and its fluctuations compared to a scalar field theory model.Comment: 4 pages with 4 figures as one uuencoded, gzipped postscript file; presented at Lattice '9

Critical properties of the Z(3) interface in (2+1)-D SU(3) gauge theory

We study the interface between two different Z(3) vacua in the deconfined phase of SU(3) pure gauge theory in 2+1 dimensions just above the critical temperature. In simulations of the Euclidean lattice gauge theory formulation of the system we measure the fluctuations of the interface as the critical temperature is approached and as a function of system size. We show that the intrinsic width of the interface remains small even very close to the critical temperature. Some dynamical exponents which govern the interaction of the interface with our Monte Carlo algorithm are also estimated. We conclude that the Z(3) interface has properties broadly similar to those in many other comparable statistical mechanical systems.Comment: 26 pages, LaTex with 16 postscript figure

High-Temperature Properties of the Z(3) Interface in (2+1)-D SU(3) Gauge Theory

We study the high-temperature properties of the Z(3) interface which forms between the various ordered phases of pure SU(3) gauge theory above a critical temperature. On a (2+1)-D Euclidean lattice, we perform an accurate measurement of the interface tension, which shows good agreement with the prediction of perturbation theory. We also examine the behaviour of the Debye electric screening mass, and compare this with theoretical predictions.Comment: 10 pages, 3 figures, uuencoded gzipped tar fil

The line manager’s role in implementing successful organizational interventions

The aim of the paper is to discuss the role of the line manager in implementing to plan, implement and evaluate successful organizational interventions using our experiences from the ARK-program. Earlier literature has shown that line managers have a major influence on an intervention’s outcomes (Nielsen, 2017; Saksvik, Nytrø, Dahl-Jørgensen, & Mikkelsen, 2002), however, there is a lack of knowledge about the managements’ role throughout the entire intervention process and how line managers are influenced by the context at different levels. We therefore discuss the line managers’ role within the five phase cycle of an organizational intervention, including preparation, screening, action planning, implementation and evaluation. We also introduce a more in-depth understanding of the context by using of the IGLO-model (Individual, Group, Leadership and Organizational level). Based on our knowledge and experience from the ARK-program we make some recommendations for (a) what the line managers need throughout the five phases in order to contribute to a successful intervention, and (b) on what the line manager has to provide in order to develop and implement a successful intervention process

Line managers' middle-levelness and driving proactive behaviors in organizational interventions

Purpose: This paper explores line managers' proactive work behaviors in organizational interventions and ascertains how their management of their middle-levelness by aligning with the intervention, or not, influences their proactive work behaviors. Design/methodology/approach: The authors’ findings are based on thematic analysis of 20 semi-structured interviews of university heads of departments responsible for managing organizational interventions. Findings: The authors found that line managers engaged in a range of proactive work behaviors to implement the organizational intervention (i.e. “driving proactive behaviors”). Furthermore, line managers tended to engage in driving proactive behaviors when they aligned with the organizational intervention, but not to when unconvinced of the intervention's validity. Practical implications: These findings highlight the importance of senior management and HR investing sufficient time and quality in the preparation phase to ensure all actors have a shared understanding of the organizational interventions' validity. Originality/value: This is the first study to explore line managers' proactive work behaviors to implement an organizational intervention, and how the line managers' management of their middle-levelness influence these proactive work behaviors

Safety representatives’ job crafting in organizational interventions: driver, counselor, watchdog, or abstainer

The Nordic model and organizational research highlight the benefits of employee participation and collaboration between management and employees. Using job crafting theory, this paper studied the roles safety representatives craft for themselves in organizational interventions, the mental models that impact the roles they craft, and the possible consequences these roles have for intervention implementation. The research used a case study design to interview 15 safety representatives of 15 different departments at a university in Norway regarding their role in an organizational intervention. The thematic analysis identified five roles the safety representatives crafted for themselves: 1) Watchdogs safeguarding the work environment, 2) Watchdogs safeguarding the line managers’ implementation, 3) Counsellors to the line manager on how to implement the intervention activities, 4) Drivers who themselves implement the intervention activities, and 5) Abstainers who let the intervention occur without their involvement. The safety representatives’ mental models of their line manager, the work environment, their colleagues, and the intervention itself appeared to affect the roles they crafted. Finally, the different roles safety representatives crafted for themselves seemed to influence the intervention implementation

The psychometric properties of the Burnout Assessment Tool in Norway: A thorough investigation into construct-relevant multidimensionality

OBJECTIVE: The World Health Organization recognizes burnout as an occupational issue. Nevertheless, accurately identifying employee burnout remains a challenging task. To complicate matters, current measures of burnout have demonstrated limitations, prompting the development of the Burnout Assessment Tool (BAT). Given these circumstances, conducting an in-depth examination of the BAT's construct-relevant multidimensionality is crucial. METHOD: This study focuses on both the original 23-item BAT and the short 12-item version, using modern factor analytic methods to investigate reliability, validity, and measurement invariance in a representative sample from Norway (n = 493; 49.54% women). RESULTS: Our findings revealed that the bifactor exploratory structural equation modeling solution (burnout global factor and four specific burnout component factors) best explained the data for both BAT versions. All factors demonstrated adequate omega coefficients, with the global factor showing exceptional strength. Both BAT versions correlated highly with each other and with another burnout measure, suggesting convergent validity. Furthermore, both BAT versions achieved full (strict) measurement invariance based on gender. Finally, our results showed that burnout acts as a mediator in our proposed job demands-resources model as preliminary evidence of predictive validity. CONCLUSIONS: The study validates the Burnout Assessment Tool in the Norwegian context. The study supports the reliability, validity, and unbiased nature of the tool across genders. The findings also reinforce the importance of job demands and resources, along with burnout as a key mediator, in understanding workplace dynamics in accordance with job demands-resources theory

Prospects for asteroseismology

The observational basis for asteroseismology is being dramatically strengthened, through more than two years of data from the CoRoT satellite, the flood of data coming from the Kepler mission and, in the slightly longer term, from dedicated ground-based facilities. Our ability to utilize these data depends on further development of techniques for basic data analysis, as well as on an improved understanding of the relation between the observed frequencies and the underlying properties of the stars. Also, stellar modelling must be further developed, to match the increasing diagnostic potential of the data. Here we discuss some aspects of data interpretation and modelling, focussing on the important case of stars with solar-like oscillations.Comment: Proc. HELAS Workshop on 'Synergies between solar and stellar modelling', eds M. Marconi, D. Cardini & M. P. Di Mauro, Astrophys. Space Sci., in the press Revision: correcting abscissa labels on Figs 1 and

Solar Neutrinos and the Principle of Equivalence

We study the proposed solution of the solar neutrino problem which requires a flavor nondiagonal coupling of neutrinos to gravity. We adopt a phenomenological point of view and investigate the consequences of the hypothesis that the neutrino weak interaction eigenstates are linear combinations of the gravitational eigenstates which have slightly different couplings to gravity, $f_1G$ and $f_2G$, $|f_1-f_2| << 1$, corresponding to a difference in red-shift between electron and muon neutrinos, $\Delta z/(1+z) \sim |f_1 - f_2|$. We perform a $\chi^2$ analysis of the latest available solar neutrino data and obtain the allowed regions in the space of the relevant parameters. The existing data rule out most of the parameter space which can be probed in solar neutrino experiments, allowing only $|f_1 - f_2| \sim 3 \times 10^{-14}$ for small values of the mixing angle ($2 \times 10^{-3} \le \sin^2(2\theta_G) \le 10^{-2}$) and $10^{-16} \stackrel{<}{\sim} |f_1 - f_2| \stackrel{<}{\sim}10^{-15}$ for large mixing ($0.6 \le \sin^2(2\theta_G) \le 0.9$). Measurements of the $^8{\rm B}$-neutrino energy spectrum in the SNO and Super-Kamiokande experiments will provide stronger constraints independent of all considerations related to solar models. We show that these measurements will be able to exclude part of the allowed region as well as to distinguish between conventional oscillations and oscillations due to the violation of the equivalence principle.Comment: 20 pages + 4 figures, IASSNS-AST 94/5