319,267 research outputs found

    Final LHC Synchronization Test a Success

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    Geneva, 25 August 2008. CERN has today announced the success of the second and final test of the Large Hadron Collider’s beam synchronization systems which will allow the LHC operations team to inject the first beam into the LHC. Friday evening 22 August, a single bunch of a few particles travelled down the transfer line from the Super Proton Synchrotron (SPS) accelerator to the LHC. After a period of optimization, one bunch was kicked up from the transfer line into the LHC beam pipe and steered counter-clockwise about 3 kilometres around the LHC. “Thanks to a fantastic team, both the clock-wise and counter-clockwise tests went without a hitch. We look forward to a resounding success when we make our first attempt to send a beam all the way around the LHC,” said Lyn Evans, LHC Project Leader. Both the counter-clockwise and clockwise tests are part of the preparations to ready the LHC, the world’s most powerful particle accelerator, for the eventual acceleration and collision of two beams at an energy of 5 TeV per beam. This unprecedented event is foreseen to take place by end 2008

    Audiovisual preservation strategies, data models and value-chains

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    This is a report on preservation strategies, models and value-chains for digital file-based audiovisual content. The report includes: (a)current and emerging value-chains and business-models for audiovisual preservation;(b) a comparison of preservation strategies for audiovisual content including their strengths and weaknesses, and(c) a review of current preservation metadata models, and requirements for extension to support audiovisual files

    A comparison of the development of audiovisual integration in children with autism spectrum disorders and typically developing children

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    This study aimed to investigate the development of audiovisual integration in children with Autism Spectrum Disorder (ASD). Audiovisual integration was measured using the McGurk effect in children with ASD aged 7–16 years and typically developing children (control group) matched approximately for age, sex, nonverbal ability and verbal ability. Results showed that the children with ASD were delayed in visual accuracy and audiovisual integration compared to the control group. However, in the audiovisual integration measure, children with ASD appeared to ‘catch-up’ with their typically developing peers at the older age ranges. The suggestion that children with ASD show a deficit in audiovisual integration which diminishes with age has clinical implications for those assessing and treating these children

    Transient Analysis for Music and Moving Images: Consideration for Television Advertising

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    In audiovisual composition, coupling montage moving images with music is common practice. Interpretation of the effect on an audioviewer's consequent interpretation of the composition is discursive and unquantified. Meth-odology for evaluating the audiovisual multimodal inter-activity is proposed, developing an analysis procedure via the study of modality interdependent transient structures, explained as forming the foundation of perception via the concept of Basic Exposure response to the stimulus. The research has implications for analysis of all audiovisual media, with practical implications in television advertis-ing as a discrete typology of target driven audiovisual presentation. Examples from contemporary advertising are used to explore typical transient interaction patterns and the consequences of which are discussed from the practical viewpoint of the audiovisual composer

    Audiovisual economics: Audiovisual markets in the European Union

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    Focusing on economic aspects of audiovisual industries, this article analyses some of the key EU policy initiatives affecting the sector –the AVMS Directive; the MEDIA Programme; competition and state aid for PSB; and also media ownership and pluralism– in the context of changing technologies and changing markets in Europe. It is notable that the policy ambitions surrounding audiovisual media are varied and do not always pull in the same direction. This article examines the threats and opportunities caused by digitisation and new value chain configurations but argues that conflicting agendas remain a substantive challenge for policy-making at EU lev

    Behavioural evidence for separate mechanisms of audiovisual temporal binding as a function of leading sensory modality

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    The ability to integrate auditory and visual information is critical for effective perception and interaction with the environment, and is thought to be abnormal in some clinical populations. Several studies have investigated the time window over which audiovisual events are integrated, also called the temporal binding window, and revealed asymmetries depending on the order of audiovisual input (i.e. the leading sense). When judging audiovisual simultaneity, the binding window appears narrower and non-malleable for auditory-leading stimulus pairs and wider and trainable for visual-leading pairs. Here we specifically examined the level of independence of binding mechanisms when auditory-before-visual vs. visual-before-auditory input is bound. Three groups of healthy participants practiced audiovisual simultaneity detection with feedback, selectively training on auditory-leading stimulus pairs (group 1), visual-leading stimulus pairs (group 2) or both (group 3). Subsequently, we tested for learning transfer (crossover) from trained stimulus pairs to non-trained pairs with opposite audiovisual input. Our data confirmed the known asymmetry in size and trainability for auditory–visual vs. visual–auditory binding windows. More importantly, practicing one type of audiovisual integration (e.g. auditory–visual) did not affect the other type (e.g. visual–auditory), even if trainable by within-condition practice. Together, these results provide crucial evidence that audiovisual temporal binding for auditory-leading vs. visual-leading stimulus pairs are independent, possibly tapping into different circuits for audiovisual integration due to engagement of different multisensory sampling mechanisms depending on leading sense. Our results have implications for informing the study of multisensory interactions in healthy participants and clinical populations with dysfunctional multisensory integration

    The Ohio State University Libraries Audiovisual Assessment Interim Report

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    The 26-month audiovisual (AV) assessment took place from June 2017 to August 2019 with a focus on rare or unique audiovisual items. Curators and archivists within each unit identified collections or collecting areas for significance or research value. Approximately 65% of AV materials in seven library units has not been assessed. Upon completion, 18,389 audiovisual items in 32 distinct formats were individually assessed

    Issues in cross-cultural studies of advertising audiovisual material

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    This article presents an approach to cross-cultural studies of advertising audiovisual material that departs from the typical rigid marketing models. It favours a more qualitative inductive approach to corpuses, in which audiovisual texts are not approached or compared through the use of standardised American tools. After reviewing the usual marketing tools, the article focuses on the steps researchers can usefully take, from the gathering of audiovisual texts from two different environments to their classification, two important steps that are critical in such studies

    Playaways and RDA: Summary of Relevant Sections from RDA Chapters 3, 6, and 7

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    Playways and RDA: Summary of Relevant Sections from RDA Chapters 3, 6, and 7