32 research outputs found

    Search for jet extinction in the inclusive jet-pT spectrum from proton-proton collisions at s=8 TeV

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    Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published articles title, journal citation, and DOI.The first search at the LHC for the extinction of QCD jet production is presented, using data collected with the CMS detector corresponding to an integrated luminosity of 10.7  fb−1 of proton-proton collisions at a center-of-mass energy of 8 TeV. The extinction model studied in this analysis is motivated by the search for signatures of strong gravity at the TeV scale (terascale gravity) and assumes the existence of string couplings in the strong-coupling limit. In this limit, the string model predicts the suppression of all high-transverse-momentum standard model processes, including jet production, beyond a certain energy scale. To test this prediction, the measured transverse-momentum spectrum is compared to the theoretical prediction of the standard model. No significant deficit of events is found at high transverse momentum. A 95% confidence level lower limit of 3.3 TeV is set on the extinction mass scale

    Searches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV

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    Searches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, Z, and W bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about 19.5 fb(-1) of proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012 with the CMS detector at the LHC. The main emphasis is neutralino pair production in which each neutralino decays either to a Higgs boson (h) and an LSP or to a Z boson and an LSP, leading to hh, hZ, and ZZ states with missing transverse energy (E-T(miss)). A second aspect is chargino-neutralino pair production, leading to hW states with E-T(miss). The decays of a Higgs boson to a bottom-quark pair, to a photon pair, and to final states with leptons are considered in conjunction with hadronic and leptonic decay modes of the Z and W bosons. No evidence is found for supersymmetric particles, and 95% confidence level upper limits are evaluated for the respective pair production cross sections and for neutralino and chargino mass values

    The turnover process in organizations: An exploration of the role of met-unmet expectations

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    An assessment of the turnover process was undertaken with subjects of railway track maintenance crews. The differences between the responses of workers who left the crews and others who retained membership for the study were partially explained by the met-unmet expectations framework, and there was some evidence to suggest a variety of work related factors are a source of employee perceptions. However, to obtain a fuller understanding of the processes of employee reactions further theoretical articulation is required

    Managerial work roles in Asia: An empirical study of Mintzberg's role formulation in four Asian countries

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    In an increasingly competitive global environment, impacted by a myriad of social, economic and technological forces, managerial roles have, over the past two decades, undergone dramatic transformation. Indeed, managers around the world are struggling to redefine their roles and responsibilities against a backdrop of the classic ten roles of managers espoused by Mintzberg in the 1970s, which were based on research in the US context. Yet these traditional roles are still widely taught in universities and training programs, and particularly all over Asia with the spread of Western business education literature. The relevance of the Mintzberg formulation in the Asian context was the aim of this four country study. The study reports the importance and degree of use of the ten Mintzberg managerial roles in the contemporary Asian context. The findings suggest although the roles overlap considerably, they are acted out in a very different manner. Implications for the findings in an international market arena are discussed

    A comparison of values espoused by quality and other managers

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    An acknowledged need to improve the competitiveness of Australian industry has heightened interest in the effective use of Total Quality Management (TQM). Inevitably, this quality revolution will require a reorientation of work relevant values, attitudes and behaviours. An exploratory study, which compared the personal value systems of some 231 Western Australian general managers and Australian quality managers, found significant differences between their value orientations in terms of key TQM components. These findings have implications for human resource management, which has the onerous responsibility of providing guidance for the successful generation and sustenance of quality cultures

    The importance of job content and social information on organizational commitment and job satisfaction: A study in australian and malaysian nursing contexts

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    An emerging challenge for health-care administrators is how to ensure harmony in a multicultural workforce. This is a cross-cultural study with 48 Australian and 90 Malaysian nurses. Using a path analytic approach, it was shown that the perceived content and context work properties contributed differently to job satisfaction. Specifically, for the Australian nurses, the task content dimensions were significant determinants of job satisfaction, while only the perceived information cues substantially contributed to the affective responses of the Malaysian nurses. Both types of workplace attributes influenced the nurse's organizational commitment. The implications for human resource practices in the increasingly important evolving health-care delivery industry are discussed

    Work goals and societal value orientations of senior Indian managers – An empirical analysis

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    Outlines the impact of economic reform in India at the organisational level by exploring relationships between the societal priorities of the new reform context and espoused work goal priorities of very senior Indian managers in key economic sectors. The paper attempts to capture the shift in work goals of senior managers during the period of current reform. Empirical evidence gathered through a survey of 421 senior Indian managers sponsored by the Indian Institute of Management, Calcutta, forms the basis of this paper. The empirical analysis points to an increasing convergence in reform values amongst senior managers, on the one hand, while demonstrating an absence of wider social vision, on the other

    Contributions of job content and social information on organizational commitment and job satisfaction: An exploration in a Malaysian nursing context

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    This study reports the responses of 286 nursing staff of a large Malaysian hospital. Using a path-analytic approach it was shown that perceived information cues substantially contributed to job satisfaction, but the content task attributes were non-significant determinants of affective responses. Path analysis also revealed that the task content properties of identity, significance and autonomy as well as the interpersonal task attribute of dealing with others were significant contributors of organization commitment. An inference of regression analyses is that cultural relativity is a central element of the task environment. Implications, from these findings, for the Malaysian health care system and multicultural work settings, in general, are discussed
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