36 research outputs found

    A realization and analysis : the manifestation of Franz Schubert within Manuel Maria Ponce\u27s Sonata romantica.

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    Within early twentieth-century guitar repertoire, Manuel María Ponce’s Sonata Romántica distinguishes itself in both quality and historical significance. The manifestation of Franz Schubert’s compositional idioms within this work exhibits Ponce’s intense understanding of Romantic harmonic and formal treatment, in addition to his imitative compositional ability. The main aim of this document is to discover the specific ways in which Ponce emulates Schubert by incorporating comparative and Schenkerian analyses. This investigation examines Ponce’s treatment of harmonic, motivic and formal structures to reveal the unique aesthetic qualities that distinguish the piece as a guitar sonata in the manner of Schubert. In particular, an examination of the Sonata Romántica suggests a possible chronological organization that reflects Schubert’s evolution of musical forms and genres. An analysis of the collaborative efforts between guitarist Andrés Segovia and Ponce reveals the possible motivations to the Sonata Romántica’s conception, including the choice to emulate Schubert

    Description and performance of track and primary-vertex reconstruction with the CMS tracker

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    A description is provided of the software algorithms developed for the CMS tracker both for reconstructing charged-particle trajectories in proton-proton interactions and for using the resulting tracks to estimate the positions of the LHC luminous region and individual primary-interaction vertices. Despite the very hostile environment at the LHC, the performance obtained with these algorithms is found to be excellent. For tbar t events under typical 2011 pileup conditions, the average track-reconstruction efficiency for promptly-produced charged particles with transverse momenta of pT > 0.9GeV is 94% for pseudorapidities of |η| < 0.9 and 85% for 0.9 < |η| < 2.5. The inefficiency is caused mainly by hadrons that undergo nuclear interactions in the tracker material. For isolated muons, the corresponding efficiencies are essentially 100%. For isolated muons of pT = 100GeV emitted at |η| < 1.4, the resolutions are approximately 2.8% in pT, and respectively, 10μm and 30μm in the transverse and longitudinal impact parameters. The position resolution achieved for reconstructed primary vertices that correspond to interesting pp collisions is 10–12μm in each of the three spatial dimensions. The tracking and vertexing software is fast and flexible, and easily adaptable to other functions, such as fast tracking for the trigger, or dedicated tracking for electrons that takes into account bremsstrahlung

    Alignment of the CMS tracker with LHC and cosmic ray data

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    © CERN 2014 for the benefit of the CMS collaboration, published under the terms of the Creative Commons Attribution 3.0 License by IOP Publishing Ltd and Sissa Medialab srl. Any further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation and DOI.The central component of the CMS detector is the largest silicon tracker ever built. The precise alignment of this complex device is a formidable challenge, and only achievable with a significant extension of the technologies routinely used for tracking detectors in the past. This article describes the full-scale alignment procedure as it is used during LHC operations. Among the specific features of the method are the simultaneous determination of up to 200 000 alignment parameters with tracks, the measurement of individual sensor curvature parameters, the control of systematic misalignment effects, and the implementation of the whole procedure in a multi-processor environment for high execution speed. Overall, the achieved statistical accuracy on the module alignment is found to be significantly better than 10μm

    Type and Location of Seating on Pedestrian Streets and Influence on Duration of Stay

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    In designing for long-lasting outdoor activities, a space’s seating options and edge condition have been posited to have notable effects on staying behaviors. Danish architect Jan Gehl and American planner William H. Whyte concluded from their experiences observing public spaces that style of seating and relationship to the space’s edges have notable impacts on whether one chooses to sit down and how long they will stay once seated. Although these principles resonate with many, they have in fact received little careful and systematic evaluation. This study combined theories from prior informal observation of human preference regarding seating type and location and validated each with empirical evidence. Researchers conducted a naturalistic observation study over the course of eight days in March 2012, observing an opportunistic sample of 124 people. Results indicated that higher-quality seating type was associated with a longer duration of stay at a significant level. Duration of stay was not found to be impacted at a significant level by edge relationship, however, this may have been a result of a limited sample size. Opportunities for further research are outlined in hopes that we may continue to develop our understanding of these concepts, informing the design of livelier spaces and cities

    Marvin\u27s Marine Adventures

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    Section 230 and the Future of Free Speech on the Internet

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    In today’s episode, Rick and Sam are joined by William & Mary law school professor Laura Heymann to discuss Section 230, which recently has been in the news as people across the political spectrum have called for its repeal. The conversation begins by examining the nature and intent of Section 230 and why internet content is treated differently from newspaper or book publishers. The discussion then dives deeper into the implications of Section 230 on the First Amendment and free speech generally, along with the costs and benefits of social media and internet content as it relates to civil discourse

    Section 230 and the Future of Free Speech on the Internet

    No full text
    In today’s episode, Rick and Sam are joined by William & Mary law school professor Laura Heymann to discuss Section 230, which recently has been in the news as people across the political spectrum have called for its repeal. The conversation begins by examining the nature and intent of Section 230 and why internet content is treated differently from newspaper or book publishers. The discussion then dives deeper into the implications of Section 230 on the First Amendment and free speech generally, along with the costs and benefits of social media and internet content as it relates to civil discourse
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