888 research outputs found

    The N=2 vector-tensor multiplet, central charge superspace, and Chern-Simons couplings

    Get PDF
    We present a new, alternative interpretation of the vector-tensor multiplet as a 2-form in central charge superspace. This approach provides a geometric description of the (non-trivial) central charge transformations ab initio and is naturally generalized to include couplings of Chern-Simons forms to the antisymmetric tensor gauge field, giving rise to a N=2 supersymmetric version of the Green-Schwarz anomaly cancellation mechanism.Comment: 11 pages, LaTe

    The Link between Leadership Style and Job Satisfaction in the DON Civilian Workforce

    Get PDF
    This study analyzed job satisfaction as it relates to employees within the Department of the Navy in an effort to better understand the role that supervisory leadership plays in improving or degrading employee job satisfaction. Multiple interviews were conducted with current and former employees in order to gainer deeper understanding of the experiences of these employees. The results indicate that styles such as servant leadership and transformational are seen as having a more positive impact on employee job satisfaction than other styles including trait and transaction. The researcher developed numerous themes based on data analysis including reference to these styles of leadership, resources, development, and consistency of leadership

    Linking Representative Household Models with Household Surveys for Poverty Analysis A Comparison of Alternative Methodologies

    Get PDF
    We compare three approaches to linking macro models with representative households and micro household income data in terms of their implications for measuring the poverty and distributional effects of poverty reduction strategies. These approaches are a simple micro- accounting method, an extension of that method to account for changes in employment structure, and the Beta distribution approach. Even though in our simulation exercises the three methods do not lead to fundamentally different results in absolute terms, we show that potential differences in the measurement of distributional and poverty effects of policy shocks can be very large.Applied General Equilibrium Models, Poverty, Income Distribution, Policy Evaluation

    Linking representative household models with household surveys for poverty analysis : a comparison of alternative methodologies

    Get PDF
    The authors compare three approaches to linking representative-household macro models with micro household income data in terms of their implications for measuring the poverty and distributional effects of policy shocks. These approaches are a simple micro-accounting method, an extension of that method to account for changes in employment structure, and the Beta distribution approach. Even though in the authors simulation exercises the three methods do not lead to fundamentally different results in absolute terms, they show that potential differences in the measurement of distributional and poverty effects of policy shocks can be very large.Economic Theory&Research,Labor Policies,Health Economics&Finance,Services&Transfers to Poor,Environmental Economics&Policies,Inequality,Poverty Assessment,Health Economics&Finance,Environmental Economics&Policies,Economic Theory&Research

    Interview with Richard Grimm

    Get PDF
    Dick Grimm talks about mushroom farming.https://digital.kenyon.edu/lak_interviews/1023/thumbnail.jp

    N=2 central charge superspace and a minimal supergravity multiplet

    Get PDF
    We extend the notion of central charge superspace to the case of local supersymmetry. Gauged central charge transformations are identified as diffeomorphisms at the same footing as space-time diffeomorphisms and local supersymmetry transformations. Given the general structure we then proceed to the description of a particular vector-tensor supergravity multiplet of 24+24 components, identified by means of rather radical constraints

    Harmonic Text-Painting in Franz Liszt’s Lieder

    Get PDF
    Despite their effectiveness and general appeal, Liszt’s Lieder have not attracted the same level of interest among scholars and analysts as those of other first-rank composers of the nineteenth century. Liszt’s innovative approach to harmony, which includes a high degree of chromaticism and enharmonic shifts, along with frequent changes of tonal focus and tonal ambiguity, often frustrates efforts at analysis that attempt to reveal unified tonal structures. These factors have encouraged a view of this repertoire as uneven or inconsistent. In this study we explain Liszt’s distinctive approach to text setting as a dichotomy between traditional and progressive tonal-harmonic practices that parallels the contrasts between Classical and Romantic aesthetics and related ideas and images that operate within the poetry. We demonstrate, through the examination of surface-level harmonic progressions as well as large-scale tonal relationships, how Liszt’s Lieder reflect the conflicts and contradictions between these two sets of ideas, and the search for understanding or resolution. Analyses of individual songs illustrate both the richness and the consistency of Liszt’s harmonic style, in conveying and interpreting the meaning of texts dealing with common Romantic subjects

    Multiscale collection and analysis of submerged aquatic vegetation spectral profiles for Eurasian watermilfoil detection

    Get PDF
    The ability to differentiate a non-native aquatic plant, Myriophyllum spicatum (Eurasian watermilfoil or EWM), from other submerged aquatic vegetation (SAV) using spectral data collected at multiple scales was investigated as a precursor to mapping of EWM. Spectral data were collected using spectroradiometers for SAV taken out of the water, from the side of a boat directly over areas of SAV and from a lightweight portable radiometer system flown from an unmanned aerial system (UAS). EWM was spectrally different from other SAV when using 651 spectral bands collected in ultraviolet to near-infrared range of 350 to 1000 nm but does not provide a practical system for EWM mapping because this exceeds the capabilities of available airborne hyperspectral imaging systems. Using only six spectral bands corresponding to an available multispectral camera or eight wetlands-centric bands did not reliably differentiate EWM from other SAV and assemblages. However, a modified version of the normalized difference vegetation index (mNDVI), using a ratio of red-edge to red light, was significantly different among dominant vegetation groups. Also, averaging the full range of spectral to 65 10-nm wide bands, similar to available hyperspectral imaging systems, provided the ability to identify EWM separately from other SAV. The UAS-collected spectral data had the lowest remote sensing reflectance versus the out-of-water and boatside data, emphasizing the need to collect optimized data. The spectral data collected for this study support that with relatively clear and calm water, hyperspectral data, and mNDVI, it is likely that UAS-based imaging can help with mapping and monitoring of EWM
    • 

    corecore