43 research outputs found

    Listen to Nice

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    In describing Humphrey Jennings’ wartime documentary propaganda film, 'Listen to Britain' (1942), a film with an overtly poetic sensibility and dominantly musical soundtrack, John Corner asserts that ‘through listening to Britain, we are enabled to properly look at it'. This idea of sound leading our attention to the images has underpinned much of the collaborative work between composer and sound designer, Geoffrey Cox, and documentary filmmaker, Keith Marley. It is in this context that the article will analyse an extract of A Film About Nice (Marley and Cox 2010), a contemporary re-imagining of Jean Vigo’s silent documentary, 'A propos de Nice' (1930). Reference will be made throughout to the historical context, and the filmic and theoretical influences that have informed the way music and creative sound design have been used to place emphasis on hearing a place, as much as seeing it

    On the verge of Umdeutung in Minnesota: Van Vleck and the correspondence principle (Part One)

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    In October 1924, the Physical Review, a relatively minor journal at the time, published a remarkable two-part paper by John H. Van Vleck, working in virtual isolation at the University of Minnesota. Van Vleck combined advanced techniques of classical mechanics with Bohr's correspondence principle and Einstein's quantum theory of radiation to find quantum analogues of classical expressions for the emission, absorption, and dispersion of radiation. For modern readers Van Vleck's paper is much easier to follow than the famous paper by Kramers and Heisenberg on dispersion theory, which covers similar terrain and is widely credited to have led directly to Heisenberg's "Umdeutung" paper. This makes Van Vleck's paper extremely valuable for the reconstruction of the genesis of matrix mechanics. It also makes it tempting to ask why Van Vleck did not take the next step and develop matrix mechanics himself.Comment: 82 page

    Human intrahepatic tregs are functional, require IL-2 from effector cells for survival and are susceptible to fas ligand mediated apoptosis

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    Regulatory T cells (T(reg)) suppress T effector cell proliferation and maintain immune homeostasis. Autoimmune liver diseases persist despite high frequencies of T(reg) in the liver, suggesting that the local hepatic microenvironment might affect T(reg) stability, survival, and function. We hypothesized that interactions between T(reg) and endothelial cells during recruitment and then with epithelial cells within the liver affect T(reg) stability, survival, and function. To model this, we explored the function of T(reg) after migration through human hepatic sinusoidal‐endothelium (postendothelial migrated T(reg) [PEM T(reg)]) and the effect of subsequent interactions with cholangiocytes and local proinflammatory cytokines on survival and stability of T(reg). Our findings suggest that the intrahepatic microenvironment is highly enriched with proinflammatory cytokines but deficient in the T(reg) survival cytokine interleukin (IL)‐2. Migration through endothelium into a model mimicking the inflamed liver microenvironment did not affect T(reg) stability; however, functional capacity was reduced. Furthermore, the addition of exogenous IL‐2 enhanced PEM T(reg) phosphorylated STAT5 signaling compared with PEMCD8. CD4 and CD8 T cells are the main source of IL‐2 in the inflamed liver. Liver‐infiltrating T(reg) reside close to bile ducts and coculture with cholangiocytes or their supernatants induced preferential apoptosis of T(reg) compared with CD8 effector cells. T(reg) from diseased livers expressed high levels of CD95, and their apoptosis was inhibited by IL‐2 or blockade of CD95. Conclusion: Recruitment through endothelium does not impair T(reg) stability, but a proinflammatory microenvironment deficient in IL‐2 leads to impaired function and increased susceptibility of T(reg) to epithelial cell‐induced Fas‐mediated apoptosis. These results provide a mechanism to explain T(reg) dysfunction in inflamed tissues and suggest that IL‐2 supplementation, particularly if used in conjunction with T(reg) therapy, could restore immune homeostasis in inflammatory and autoimmune liver disease. (Hepatology 2016;64:138–150

    Anti-inflammatory effects of nicotine in obesity and ulcerative colitis

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    Cigarette smoke is a major risk factor for a number of diseases including lung cancer and respiratory infections. Paradoxically, it also contains nicotine, an anti-inflammatory alkaloid. There is increasing evidence that smokers have a lower incidence of some inflammatory diseases, including ulcerative colitis, and the protective effect involves the activation of a cholinergic anti-inflammatory pathway that requires the α7 nicotinic acetylcholine receptor (α7nAChR) on immune cells. Obesity is characterized by chronic low-grade inflammation, which contributes to insulin resistance. Nicotine significantly improves glucose homeostasis and insulin sensitivity in genetically obese and diet-induced obese mice, which is associated with suppressed adipose tissue inflammation. Inflammation that results in disruption of the epithelial barrier is a hallmark of inflammatory bowel disease, and nicotine is protective in ulcerative colitis. This article summarizes current evidence for the anti-inflammatory effects of nicotine in obesity and ulcerative colitis. Selective agonists for the α7nAChR could represent a promising pharmacological strategy for the treatment of inflammation in obesity and ulcerative colitis. Nevertheless, we should keep in mind that the anti-inflammatory effects of nicotine could be mediated via the expression of several nAChRs on a particular target cell

    Cultural distance, mindfulness and passive xenophobia: Using Integrated Threat Theory to explore home higher education students' perspectives on 'internationalisation at home'

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    This paper addresses the question of interaction between home and international students using qualitative data from 100 home students at two 'teaching intensive' universities in the southwest of England. Stephan and Stephan's Integrated Threat Theory is used to analyse the data, finding evidence for all four types of threat that they predict when outgroups interact. It is found that home students perceive threats to their academic success and group identity from the presence of international students on the campus and in the classroom. These are linked to anxieties around 'mindful' forms of interaction and a taboo around the discussion of difference, leading to a 'passive xenophobia' for the majority. The paper concludes that Integrated Threat Theory is a useful tool in critiquing the 'internationalisation at home' agenda, making suggestions for policies and practices that may alleviate perceived threats, thereby improving the quality and outcomes of intercultural interaction. © 2010 British Educational Research Association

    Configuration Management Best Practices

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    Configuration management (CM) is used for the configuration of complex systems in many fields, such as IT, aeronautics, shipbuilding, space systems, nuclear power plants, etc. and is indispensable for the long-term operation of any large facility. In the Engineering Department, configuration management consists of managing the technical description and layout of the accelerators and transfer lines (and their various components), as well as managing all the modifications made during their evolution over time. It is about all the processes that ensure the conformity of the accelerators with the requirements of their operation, throughout their life cycle. The aim is to provide a clear and coherent representation of the CERN main technical facilities at a given point in time. This paper will present, the best practices that constitute the configuration management of accelerators and transfer lines in the EN-ACE group

    [L'impact des droits de propriété intellectuels sur le développement des biotechnologies européennes]

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    Le rÎle fondamental des droits de propriété intellectuelle sur le développement et les applications dans le domaine des biotechnologies a été largement démontré. Ce projet avait pour but de souligner l'importance des droits de propriété intellectuelle comme barriÚre aux collaborations inter-entreprises dans différents secteurs des bioindustries. Les résultats ont révélé que si les droits de propriété intellectuelle jouent un rÎle fondamental dans l'établissement des termes des alliances stratégiques entre les entreprises, il n'est pas prouvé qu'ils jouent un rÎle de frein dans les partenariats de recherche
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