1,157 research outputs found

    New Public Management a re-packaging of extant techniques? Some archival evidence from an Irish semi-state power company

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    Purpose The objective of this paper is to explore, if like some other management initiatives, New Public Management may be a repackaging of already existent concepts. Emerging in the 1970s and 1980s as an innovative way to manage public sector elements, New Public Management has affected both the ownership and management of public sector companies, services, and utilities. Minimal research has been undertaken previously, using historic archival sources of public entities, to explore if elements of the concept originated prior to the 1970s. Design/methodology/approach This research draws on archival records from a publicly-owned electricity company, covering about three decades from 1946, during which a large investment project was undertaken by the company. We draw on key tenets of what is today called New Public Management, examining prior research to ascertain if similar elements were present in the case organisation. Findings When reviewing the progress of the investment project, many of the key elements of New Public Management emerged, even during the early part of the project. Originality/value There is little historical research on the origins of New Public Management, and the findings here suggest it may not be entirely new. While this does not at all invalidate existing research, it suggests New Public Management may be to an extent a repackaging of previously extant techniques. This opens up possibilities for future historic research in terms of how and why it was repackaged, and also what was/was not repackaged

    Evidence of new public management during the rural electrification scheme

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    In recent years, much attention has been given to various New Public Management (NPM) initiatives. Hood (1991) suggests NPM emerged as a set of doctrines in the late 1970s. In this paper, we explore NPM during the Rural Electrification Scheme (RES) using archival material from the Electricity Supply Board (ESB). One of the ESB’s key projects was the electrification of rural Ireland, spanning a time period of mid-1940s to late 1970s. This project involved accountants, and emerging and evolving accounting and management practices. It is thus, at first sight, a project which may include elements of NPM

    Investments in power generation in Great Britain c1960-2010 - The role of accounting and the financialisation of investment decisions

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    This paper explores the increasing role of financialisation on investment decisions in the power generation industry in Great Britain (GB). Such decisions affect society, and the relative role of financialisation in these macro-levels decisions has not been explored from a historical perspective. The paper draws on historical material and interview data. Specifically, we use an approach inspired by institutional sociology drawing on elements of Scott’s (2014) pillars of institutions. Applying concepts stemming from regulative and normative pressures, we explore changes in investments over the analysis period to determine forces which institutionalised practices - such as accounting - into investment in power generation. Investments in electricity generation have different levels of public and private participation. However, the common logics that underpin such investment practices provide an important understanding of the political-economics and institutional change in the UK. Thus, the heightened use of accounting in investment has been, to some extent, a contributory factor to the power supply problems now faced by the British public. This paper contributes to prior literature on the effects of financialisation on society, adding power generation/energy supply to the many societal level issues already explored. It also provides brief but unique insights into the changing nature of the role of accounting in an industry sector over an extended timeframe

    Scale and Turbulence Effects on the Lift and Drag Characteristics of the NACA 65(Sub 3)-418, A=1.0 Airfoil Section

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    Wind-tunnel tests, investigating low drag wing performance in small-scale tests, showed a large increase in minimum drag coefficient, and a decrease of maximum lift coefficient occurred with decreasing Reynolds Number above certain designated values. The lift-curve slope varied up to 6% between high and low turbulence levels. Low Reynolds Number test data are unreliable for low drag airfoils either to estimate full-scale characteristics or to determine merits of airfoils for higher Reynolds numbers

    Effects of prostaglandins E1 and E2 on lymphocyte activation and cytotoxic T cell generation

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    Cold collapse and the core catastrophe

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    We show that a universe dominated by cold dark matter fails to reproduce the rotation curves of dark matter dominated galaxies, one of the key problems that it was designed to resolve. We perform numerical simulations of the formation of dark matter halos, each containing \gsim 10^6 particles and resolved to 0.003 times the virial radius, allowing an accurate comparison with rotation curve data. A good fit to both galactic and cluster sized halos can be achieved using the density profile rho(r) \propto [(r/r_s)^1.5(1+(r/r_s)^1.5)]^-1, where r_s is a scale radius. This profile has a steeper asymptotic slope, rho(r) \propto r^-1.5, and a sharper turnover than found by lower resolution studies. The central structure of relaxed halos that form within a hierarchical universe has a remarkably small scatter (unrelaxed halos would not host disks). We compare the results with a sample of dark matter dominated, low surface brightness (LSB) galaxies with circular velocities in the range 100-300 km/s. The rotation curves of disks within cold dark matter halos rise too steeply to match these data which require a constant mass density in the central regions. The same conclusion is reached if we compare the scale free shape of observed rotation curves with the simulation data. It is important to confirm these results using stellar rather than HI rotation curves for LSB galaxies. We test the effects of introducing a cut-off in the power spectrum that may occur in a universe dominated by warm dark matter. In this case halos form by a monolithic collapse but the final density profile hardly changes, demonstrating that the merger history does not play a role in determining the halo structure.Comment: Latex 13 pages, 4 figures. Submitted to MNRAS. High resolution colour version of figure 4 and other N-body images here: http://star-www.dur.ac.uk:80/~moore/images

    Protein Kinase D1 Modulates Aldosterone-Induced ENaC Activity in a Renal Cortical Collecting Duct Cell Line

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    Aldosterone treatment of M1-CCD cells stimulated an increase in epithelial Na+ channel (ENaC) alpha-subunit expression that was mainly localized to the apical membrane. PKD1 suppressed cells constitutively expressed ENaC alpha at low abundance, with no increase after aldosterone treatment. Here ENaC alpha was mainly localized proximal to the basolateral surface of the epithelium both before and after aldosterone treatment. Apical membrane insertion of ENaC beta in response to aldosterone treatment was also sensitive to PKD1 suppression as was the aldosterone-induced rise in the amiloride-sensitive, trans-epithelial current (ITE). The interaction of the mineralocorticoid receptor (MR) with specific elements in the promoters of aldosterone responsive genes is stabilized by ligand interaction and phosphorylation. PKD1 suppression inhibited aldosterone-induced SGK-1 expression. The nuclear localization of MR was also blocked by PKD1 suppression and MEK antagonism implicating both these kinases in MR nuclear stabilization. PKD1 thus modulates aldosterone-induced ENaC activity through the modulation of sub-cellular trafficking and the stabilization of MR nuclear localization

    The Star Formation Rate Intensity Distribution Function -- Comparison of Observations with Hierarchical Galaxy Formation

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    Recently, Lanzetta et al. (2002) have measured the distribution of star formation rate intensity in galaxies at various redshifts. This data set has a number of advantages relative to galaxy luminosity functions; the effect of surface-brightness dimming on the selection function is simpler to understand, and this data set also probes the size distribution of galactic disks. We predict this function using semi-analytic models of hierarchical galaxy formation in a LCDM cosmology. We show that the basic trends found in the data follow naturally from the redshift evolution of dark matter halos. The data are consistent with a constant efficiency of turning gas into stars in galaxies, with a best-fit value of 2%, where dust obscuration is neglected; equivalently, the data are consistent with a cosmic star formation rate which is constant to within a factor of two at all redshifts above two. However, the practical ability to use this kind of distribution to measure the total cosmic star formation rate is limited by the predicted shape of an approximate power law with a smoothly varying power, without a sharp break.Comment: 17 pages, 4 figures, published in New Astronom

    Stellar Disks in Aquarius Dark Matter Haloes

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    We investigate the gravitational interactions between live stellar disks and their dark matter halos, using LCDM haloes similar in mass to that of the Milky Way taken from the Aquarius Project. We introduce the stellar disks by first allowing the haloes to respond to the influence of a growing rigid disk potential from z = 1.3 to z = 1.0. The rigid potential is then replaced with star particles which evolve self-consistently with the dark matter particles until z = 0.0. Regardless of the initial orientation of the disk, the inner parts of the haloes contract and change from prolate to oblate as the disk grows to its full size. When the disk normal is initially aligned with the major axis of the halo at z=1.3, the length of the major axis contracts and becomes the minor axis by z=1.0. Six out of the eight disks in our main set of simulations form bars, and five of the six bars experience a buckling instability that results in a sudden jump in the vertical stellar velocity dispersion and an accompanying drop in the m=2 Fourier amplitude of the disk surface density. The bars are not destroyed by the buckling but continue to grow until the present day. Bars are largely absent when the disk mass is reduced by a factor of two or more; the relative disk-to-halo mass is therefore a primary factor in bar formation and evolution. A subset of the disks is warped at the outskirts and contains prominent non-coplanar material with a ring-like structure. Many disks reorient by large angles between z=1 and z=0, following a coherent reorientation of their inner haloes. Larger reorientations produce more strongly warped disks, suggesting a tight link between the two phenomena. The origins of bars and warps appear independent: some disks with strong bars show no disturbances at the outskirts, while the disks with the weakest bars show severe warps.Comment: 19 pages, 13 figures, accepted MNRAS; fixed compatibility problem in figures 8,

    The effectiveness of hot water pressurized spray in field conditions to slow the spread of invasive alien species

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    An array of vectors have been identified that pose a risk of spreading invasive alien species (IAS), from personal protective equipment to large equipment such as vehicles and boats. Biosecurity practices that remove and/or kill IAS reduce the risk of accidental spread. The effectiveness of biosecurity protocols suitable for large equipment is little tested and requires development. One widely-used biosecurity method for large equipment is high-pressure hot water spray machines. This study tests the effectiveness of high-pressure hot water spray to induce mortality in two invasive aquatic plants: floating pennywort (Hydrocotyle ranunculoides) and Australian swamp-stonecrop (Crassula helmsii); and two invasive invertebrates: killer shrimp (Dikerogammarus villosus) and zebra mussel (Dreissena polymorpha) in field conditions. IAS were exposed to hot water spray for a range of durations (5–15 seconds) and from a range of distances (10–30 cm). Further treatments of up to 90 seconds were applied to C. helmsii. Complete survival of D. polymorpha, D. villosus and C. helmsii was seen in all control treatments following exposure to cold water spray. Hot water spray caused complete mortality of D. polymorpha and D. villosus at 10 cm for 15 seconds, demonstrating the effectiveness of the hot water treatment in inducing mortality. However, treatments were less effective when applied at longer distances and shorter durations. In contrast, hot water spray was ineffective in causing mortality in C. helmsii, even at 90 seconds of exposure. Fragmentation and complete mortality was seen in H. ranunculoides following exposure to hot and cold water spray, therefore the pressure of the spray was associated with H. ranunculoides mortality. The use of hot water spray is effective against the aquatic invasive animals tested here, however to ensure complete mortality, the importance of both duration and distance of hot water spray application is highlighted. Hot water spray did cause complete mortality in H. ranunculoides but not in C. helmsii, therefore the need for treatment water containment and safe disposal is paramount to prevent spread of potentially viable propagules
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