45,969 research outputs found

    Realist magic in the fiction of William Dean Howells

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    William Dean Howells was committed to determining what would inspire people from different economic, political, and religious backgrounds to imagine each other as respected members of a human community. Scholars have debated whether his realist aesthetic was suited to do that. Some have argued that realism works to contain the lower classes, and others have argued that it portrays a heterogeneous society in which social problems can be solved through human negotiation between the middle classes and others. Scholars have not, however, addressed how Howells performs the necessary shift in his fiction from a space in which characters focus on their own interests to a space in which they seek to enact justice through negotiating with disparate people. This article identifies and names what enacts that necessary shift: the literary device of accident. In Howells's fiction chance meetings, feelings of accidental connection, and injuries during travel force his middle-class characters into understanding labor politics, slum dwellers, and morally compromised millionaires. His use of accident changes over time, from The Undiscovered Country (1880) to Annie Kilburn (1889) and A Hazard of New Fortunes (1890). This essay traces that change in order to reflect on the democratic and antidemocratic implications of Howells's realist aesthetic. © Regents of the University of California

    Medicine And Public Health: Latin America

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    Health And Disease: Latin America

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    Experimental demonstration of a Rydberg-atom beam splitter

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    Inhomogeneous electric fields generated above two-dimensional electrode structures have been used to transversely split beams of helium Rydberg atoms into pairs of spatially separated components. The atomic beams had initial longitudinal speeds of between 1700 and 2000 m/s and were prepared in Rydberg states with principle quantum number n=52n=52 and electric dipole moments of up to 8700 D by resonance-enhanced two-color two-photon laser excitation from the metastable 1s2s 3^3S1_1 level. Upon exiting the beam splitter the ensembles of Rydberg atoms were separated by up to 15.6 mm and were detected by pulsed electric field ionization. Effects of amplitude modulation of the electric fields of the beam splitter were shown to cause particle losses through transitions into unconfined Rydberg-Stark states.Comment: 6 pages, 5 figure

    Antenna Technology for QUASAT application

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    A hybrid growth version of the advanced Sunflower, or precision deployable, antenna was adopted as the configuration proposed for the QUASAT very long baseline interferometry mission. The antenna consists of rigid panels of graphite-epoxy facesheets covering aluminum honeycomb sandwich. The six main folding panels are hinged to a cantilevered support ring attached to the periphery of the center section. Six pairs of intermediate panels are located between these panels and are hinged to each other and to the main panels. The flight configuration, antenna weight, a mass properties, frequency, and contour tolerance are discussed. The advantages of the solid antenna surface cover an all-mesh contour are examined

    Education’s not black and white, it’s vibrant grey

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    This paper offers a learner’s eye-view of a journey through education, written in an auto-narrative style. Sarah’s story spans from Secondary School to College and through University finishing at the point of Graduation. Revealed in this open and honest account is an insight to coping with home life whilst navigating the trials of the Education system. Sarah makes criticisms of her peers at every level reminding us how competitive some students have to be to get on and achieve success in their education. Critical judgements are also made about Sarah’s School teachers and University lecturers, which are at times as rewarding as they are uncomfortable, but always truthful. Consequently, there is much to learn by both academics and students from this sensitive and vulnerable personal revelation. Sarah’s evidence in turn points to some fundamental questions about the genuine outcomes of the Educational system, e.g. what are we actually teaching young people to be like? And do we like the product in terms of their values, beliefs and motives? A concluding message from Sarah’s perspective is that greater independence in learning, freedom in thinking and equipping people to reason, judge and make decisions in whatever realm, may be defining steps towards becoming educated

    Fourier and Gegenbauer Expansions for a Fundamental Solution of Laplace's Equation in Hyperspherical Geometry

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    For a fundamental solution of Laplace's equation on the RR-radius dd-dimensional hypersphere, we compute the azimuthal Fourier coefficients in closed form in two and three dimensions. We also compute the Gegenbauer polynomial expansion for a fundamental solution of Laplace's equation in hyperspherical geometry in geodesic polar coordinates. From this expansion in three-dimensions, we derive an addition theorem for the azimuthal Fourier coefficients of a fundamental solution of Laplace's equation on the 3-sphere. Applications of our expansions are given, namely closed-form solutions to Poisson's equation with uniform density source distributions. The Newtonian potential is obtained for the 2-disc on the 2-sphere and 3-ball and circular curve segment on the 3-sphere. Applications are also given to the superintegrable Kepler-Coulomb and isotropic oscillator potentials
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