128 research outputs found

    Cultural orientations and preference for HRM policies and practices:the case of Oman

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    This study empirically examines the influence of cultural orientations on employee preferences of human resource management (HRM) policies and practices in Oman. Data were collected from 712 employees working in six large Omani organizations. The findings indicate that there is a number of differences among Omani employees regarding value orientations due especially to age, education and work experience. The findings show a strong orientation towards mastery, harmony, thinking and doing, and a weak orientation towards hierarchy, collectivism, subjugation and human nature-as-evil. The results demonstrate a clear link between value orientations and preferences for particular HRM policies and practices. Group-oriented HRM practices are preferred by those who scored high on collectivism and being orientations, and those who scored low on thinking and doing orientations. Hierarchy-oriented HRM practices are preferred by those scoring high on hierarchy, subjugation and human nature-as-bad orientations, and those scoring low on thinking and mastery orientations. Finally, preference for loose and informal HRM practices was positively associated with being, and negatively associated with thinking, doing and harmony orientations. The theoretical and practical implications of these findings are discussed in detail

    Spin-polarized low-energy positron beams and their applications

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    The production and use of low-energy (100 eV to 5 keV) high-intensity, spin-polarized positron beams is reviewed. Methods for obtaining beams with high polarization are discussed. Applications include studies of the moderation process, surface and bulk magnetism, optically active molecules, and the production of polarized anti-protons.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47033/1/339_2004_Article_BF00635183.pd

    A portable positron accumulator for antihydrogen formation

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    A pulsed source of positrons has been developed which may be useful for antihydrogen ( ) formation because it is portable when compared to accelerator-based sources. This positron accumulator uses a Penning-style trap to collect moderated positrons from a radioactive source. The positron pulses may be emitted with repetition rates in the range of 50–1000 Hz, which is appropriate for production schemes involving laser-induced recombination. Bunching techniques may be used to vary the width of the positron pulses over the range 30–120 ns (FWHM) to match the width of the antiproton and/or laser pulses. The efficiency of the accumulator increases from ∌ 10% at 100 Hz to ∌ 50% at 1000 Hz. 250 Hz the efficiency is ∌ 25% and the accumulator has delivered up to 8 e + /pulse per mCi of positron activity. This translates into ∌ 1.2 × 10 5 e + /pulse for a 100 Ci 58 Co source.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/42929/1/10751_2006_Article_BF02316711.pd

    Project management between will and representation

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    This article challenges some deep-rooted assumptions of project management. Inspired by the work of the German philosopher, Arthur Schopenhauer, it calls for looking at projects through two complementary lenses: one that accounts for cognitive and representational aspects and one that accounts for material and volitional aspects. Understanding the many ways in which these aspects transpire and interact in projects sheds new light on project organizations, as imperfect and fragile representations that chase a shifting nexus of intractable human, social, technical, and material processes. This, in turn, can bring about a new grasp of notions such as value,\ud knowledge, complexity, and risk

    Too big to fail and too big to succeed: accounting and privatisation in the Prison Service of England and Wales

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    This paper is concerned with the challenges involved in the transformation of the prison into a performance-oriented accounting entity. It examines the implication of private sector accounting and consulting expertise in redefining prison values and prison performance, and it discusses the consequences this had for definitions of risk and responsibility. The paper shows how the reforms promoted a systemic decentring of Prison Service accountability. Prison managers and regulators came to be inserted into hierarchies of expertise and credibility shaped by quests for commensuration and auditability. Further, the paper shows how the reform attempts brought about a situation of institutional lock-in by contributing, as the outgoing HM Chief Inspector of Prisons Anne Owers has put it in 2010, to the creation of an inflated prison system ‘too big to fail, and too big to succeed'

    Carbon emissions from land use and land-cover change

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    The net flux of carbon from land use and land-cover change (LULCC) accounted for 12.5% of anthropogenic carbon emissions from 1990 to 2010. This net flux is the most uncertain term in the global carbon budget, not only because of uncertainties in rates of deforestation and forestation, but also because of uncertainties in the carbon density of the lands actually undergoing change. Furthermore, there are differences in approaches used to determine the flux that introduce variability into estimates in ways that are difficult to evaluate, and not all analyses consider the same types of management activities. Thirteen recent estimates of net carbon emissions from LULCC are summarized here. In addition to deforestation, all analyses considered changes in the area of agricultural lands (croplands and pastures). Some considered, also, forest management (wood harvest, shifting cultivation). None included emissions from the degradation of tropical peatlands. Means and standard deviations across the thirteen model estimates of annual emissions for the 1980s and 1990s, respectively, are 1.14 ± 0.23 and 1.12 ± 0.25 Pg C yrg (1 Pg Combining double low line 1015 g carbon). Four studies also considered the period 2000-2009, and the mean and standard deviations across these four for the three decades are 1.14 ± 0.39, 1.17 ± 0.32, and 1.10 ± 0.11 Pg C yrg. For the period 1990-2009 the mean global emissions from LULCC are 1.14 ± 0.18 Pg C yrg. The standard deviations across model means shown here are smaller than previous estimates of uncertainty as they do not account for the errors that result from data uncertainty and from an incomplete understanding of all the processes affecting the net flux of carbon from LULCC. Although these errors have not been systematically evaluated, based on partial analyses available in the literature and expert opinion, they are estimated to be on the order of ± 0.5 Pg C yrg
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