10,729 research outputs found

    Management in Social Care: A Cause for Concern or an Adapting Professional Identity

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    Managers in social care are being relied upon to lead and implement substantial change within the sector. Yet the prevailing view is that the pressure being put on managers by managerialism and the increase in the business aspects of their role is in conflict with social care managers’ values, causing concern and challenging managers’ identity. Additionally, managers in social care are presented as being part of the same homogenous group as social work managers, a potential misrepresentation, which again has consequences for how managers identify with their role. This study aimed to explore and explain how social care managers are experiencing their manager identity and how they categorise themselves from a group perspective. This research was undertaken using a critical realist philosophical approach. The key theoretical framework used is social identity theory. The study findings have achieved the overall aim of the research, establishing that social care managers appear not to be experiencing any conflict in their identities, that managerialism is accepted by managers and seen to be necessary, and that managers’ values, formed in childhood, are a key aspect of how they undertake their managerial role. In addition, social care managers are not the same as social work managers, their social identity is a synthesis of the multiple groups they are members of with the dominant group being social care, because of this they cannot be viewed as being within the same homogenous group. Neither is the social care manager role distinctive from manager roles in other sectors, however how they undertake the role is. The significance of the study is the contribution to both the existing social care literature and the literature on social identity theory

    Land use change detection with LANDSAT-2 data for monitoring and predicting regional water quality degradation

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    The author has identified the following significant results. Comparison between LANDSAT 1 and 2 imagery of Arkansas provided evidence of significant land use changes during the 1972-75 time period. Analysis of Arkansas historical water quality information has shown conclusively that whereas point source pollution generally can be detected by use of water quality data collected by state and federal agencies, sampling methodologies for nonpoint source contamination attributable to surface runoff are totally inadequate. The expensive undertaking of monitoring all nonpoint sources for numerous watersheds can be lessened by implementing LANDSAT change detection analyses

    Transillumination imaging through scattering media by use of photorefractive polymers

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    We demonstrate the use of a near-infrared-sensitive photorefractive polymer with high efficiency for imaging through scattering media, using an all-optical holographic time gate. Imaging through nine scattering mean free paths is performed at 800 nm with a mode-locked continuous-wave Ti:sapphire laser

    Increases in salience of ethnic identity at work: the roles of ethnic assignation and ethnic identification

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    To better understand how ethnicity is actually experienced within organisations, we examined reported increases in ethnic identity salience at work and responses to such increases. Thirty British black Caribbean graduate employees were interviewed about how and when they experienced their ethnic identity at work. The findings demonstrated that increased salience in ethnic identity was experienced in two key ways: through ‘ethnic assignation’ (a ‘push’ towards ethnic identity) and ‘ethnic identification’ (a ‘pull’ towards ethnic identity). We explore how and when ethnic assignation and ethnic identification occur at work, and their relevance to how workplaces are experienced by this group of minority ethnic employees. The findings suggest the need for further research attention to the dynamic and episodic nature of social identity, including ethnic identity, within organisations, and to the impact of such increases in salience of social identities on behaviour at work

    Buffalo National River Ecosystems - Part II

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    The priorities were established for the Buffalo National River Ecosystem Studies through meetings and correspondence with Mr. Roland Wauer and other personnel of the Office of Natural Sciences, Southwest Region of the National Park Service. These priorities were set forth in the appendix of contract no. CX 700050443 dated May 21, 1975

    Dilepton and Photon Emission Rates from a Hadronic Gas

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    We analyze the dilepton and photon emission rates from a hadronic gas using chiral reduction formulas and a virial expansion. The emission rates are reduced to pertinent vacuum correlation functions, most of which can be assessed from experiment. Our results indicate that in the low mass region, the dilepton and photon rates are enhanced compared to most of the calculations using chiral Lagrangians. The enhancement is further increased through a finite pion chemical potential. An estimate of the emission rates is also made using Haag's expansion for the electromagnetic current. The relevance of these results to dilepton and photon emission rates in heavy-ion collisions is discussed.Comment: 7 pages, LaTeX using revTeX, 6 figures imbedded in text. Figures slightly changed, text left unchange

    Ideal Bose gas in fractal dimensions and superfluid 4^4He in porous media

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    Physical properties of ideal Bose gas with the fractal dimensionality between D=2 and D=3 are theoretically investigated. Calculation shows that the characteristic features of the specific heat and the superfluid density of ideal Bose gas in fractal dimensions are strikingly similar to those of superfluid Helium-4 in porous media. This result indicates that the geometrical factor is dominant over mutual interactions in determining physical properties of Helium-4 in porous media.Comment: 13 pages, 6 figure

    Probing the charge of a quantum dot with a nanomechanical resonator

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    We have used the mechanical motion of a carbon nanotube (CNT) as a probe of the average charge on a quantum dot. Variations of the resonance frequency and the quality factor are determined by the change in average charge on the quantum dot during a mechanical oscillation. The average charge, in turn, is influenced by the gate voltage, the bias voltage, and the tunnel rates of the barriers to the leads. At bias voltages that exceed the broadening due to tunnel coupling, the resonance frequency and quality factor show a double dip as a function of gate voltage. We find that increasing the current flowing through the CNT at the Coulomb peak does not increase the damping, but in fact decreases damping. Using a model with energy-dependent tunnel rates, we obtain quantitative agreement between the experimental observations and the model. We theoretically compare different contributions to the single-electron induced nonlinearity, and show that only one term is significant for both the Duffing parameter and the mode coupling parameter. We also present additional measurements which support the model we develop: Tuning the tunnel barriers of the quantum dot to the leads gives a 200-fold decrease of the quality factor. Single-electron tunneling through an excited state of the CNT quantum dot also changes the average charge on the quantum dot, bringing about a decrease in the resonance frequency. In the Fabry-P\'{e}rot regime, the absence of charge quantization results in a spring behaviour without resonance frequency dips, which could be used, for example, to probe the transition from quantized to continuous charge with a nanomechanical resonator.Comment: 17 pages, 12 figure

    Final Report: Buffalo National River Ecosystems

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    The objective of this study was to sample the Buffalo River on a seasonal basis for a year, in order to determine whether any potential water quality problems existed
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