29,610 research outputs found

    Study of the dEE/dxx resolution of a GEM Readout Chamber prototype for the upgrade of the ALICE TPC

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    The ALICE Collaboration is planning a major upgrade of its central barrel detectors to be able to cope with the increased LHC luminosity beyond 2020. For the TPC, this implies a replacement of the currently used gated MWPCs (Multi-Wire Proportional Chamber) by GEM (Gas Electron Multiplier) based readout chambers. In order to prove, that the present particle identification capabilities via measurement of the specific energy loss are retained after the upgrade, a prototype of the ALICE IROC (Inner Readout Chamber) has been evaluated in a test beam campaign at the CERN PS. The dEE/dxx resolution of the prototype has been proven to be fully compatible with the current MWPCs.Comment: 4 pages, 5 figures, Proceedings of "4th Conference on Micro-Pattern Gaseous Detectors

    New Horizons in Psychiatry

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    Psychiatrists have long held that there should be more psychiatry in general medicine, and the nonpsychiatric physicians have said that there should be much more medicine in psychiatry. Both groups have been perfectly correct and are being told by the consuming population that there must be more sociology in each of them. The future psychiatrist must and will work with his colleagues in medicine, not to achieve a utopia, but at least to approach this desirable situation in some degree

    Writing About Comics and Copyright

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    Academics who research and write about the visual world often complain about the way in which copyright law can hinder their scholarly endeavours, and with good reason. Writing about visual work without reproducing that work is an impoverished exercise, for both writer and reader. But, reproducing visual material can trigger concerns on the part of the conscientious author or – more often – demands on the part of the publisher about the need to secure copyright permission. In this respect, comics scholarship is no different from any other field of visual or cultural studies. Clearing rights for publication can be frustrating and time-consuming, and academic publishers often manage the business of copyright clearance by making their authors responsible for securing permissions. European Comic Art provides a good example. When an article is accepted for publication, authors are ‘required to submit copyright agreements and all necessary permission letters for reprinting or modifying copyrighted materials, both textual and graphic’, and are ‘responsible for obtaining all permissions and clearing any associated fees.’ Not all publishers, however, adhere to such a black and white position. The Journal of Graphic Novels and Comics is published by Taylor & Francis. In the ‘Authors Services’ section of their website, the publisher acknowledges that reproducing short extracts of text and other types of material ‘for the purposes of criticism may be possible without formal permission’. To better understand when permission is needed, the publisher directs its authors to the Publishers Association’s Permissions Guidelines. To better understand what rights need to be cleared, authors are directed to the publisher’s own FAQs about using third-party material in an academic article. Thirteen of the publisher’s FAQs expressly relate to the reproduction of visual material, and of those only two concede the possibility of reproducing work without permission (they relate to, respectively, the use of ‘screenshots or grabs of film or video’ and the use of ‘very old paintings’). What is not clear from the FAQs document is whether the publisher is purporting to accurately represent the law in this area. If so – as we shall see – the FAQs document is clearly deficient. If, however, Taylor & Francis is simply using the FAQs document to set out the parameters of its own editorial policy on the reproduction of copyright-protected third-party material, then so be it: the publisher is perfectly entitled to adopt such editorial guidelines as it sees fit. I would suggest, though, that in cleaving to an editorial policy that fails to take full advantage of the scope which the copyright regime allows for the lawful reproduction of copyright-protected material without need for permission, the publisher is missing an opportunity to enable and encourage its contributors to augment and enrich comics scholarship as a discipline. It is in this respect that The Comics Grid is more ambitious and forward-thinking: it actively promotes the lawful use of copyright-protected content for the purposes of academic scholarship. The journal’s copyright policy sets out that third-party images are reproduced on the basis of ‘educational fair use’, with readers and contributors directed to Columbia University Libraries’ Fair Use Checklist for further information. This is a checklist that has been developed to help academics and other scholars make a reasonable and balanced determination about whether their use of copyright-protected work is permissible under s.107 of the US Copyright Act 1976: the fair use provision. Obviously, The Comics Grid locates its copyright advice within the context of US copyright law. But, as a Glasgow-based academic, with an interest in both the history and the current state of the UK copyright regime, my particular focus within this comic concerns the extent to which academics – or indeed anyone interested in writing about comics – can rely upon UK copyright law to reproduce extracts and excerpts from published comics and graphic novels without having to ask the copyright owner for permission. To address that issue we must consider three key questions. What constitutes ‘a work’ protected by copyright within the context of comics publishing? What does it mean to speak of ‘insubstantial copying’ from a copyright-protected comic? And what can be copied lawfully from a comic for the purpose of criticism and review

    The New England Narrative

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    Though equally successful, noteworthy, inspiring, and crucial as the contributions to American Independence made by New England women patriots, the contributions made by North Carolinian women patriots are excluded from the history of America’s founding as a direct result of sectional nationalism

    Onset of cavitation in the quark-gluon plasma

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    We study the onset of bubble formation (cavitation) in the quark-gluon plasma as a result of the reduction of the effective pressure from bulk-viscous corrections. By calculating velocity gradients in typical models for quark-gluon plasma evolution in heavy-ion collisions, we obtain results for the critical bulk viscosity above which cavitation occurs. Since present experimental data for heavy-ion collisions seems inconsistent with the presence of bubbles above the phase transition temperature of QCD, our results may be interpreted as an upper limit of the bulk viscosity in nature. Our results indicate that bubble formation is consistent with the expectation of hadronisation in low-temperature QCD.Comment: 12 pages, 2 figure
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