Conception et tests d'interfaces de puissance pour système d'imagerie médicale

Dans le cadre d’une collaboration avec un partenaire industriel, le Laboratoire d’Electronique Industrielle est en charge de réaliser un dispositif d’alimentation de système d’imagerie médicale. Ce dispositif doit incorporer les interfaces de puissance nécessaires à l’alimentation d’un tube à rayons-X et ses auxiliaires, à partir d’une alimentation monophasée basse-tension ou de cellules photovoltaïques. L’ensemble doit être organisé autour d’éléments d’accumulation d’énergie afin de garantir une autonomie donnée en cas de rupture de l’alimentation

Mouse X

Mouse X is a short science fiction film which was shot in August 2012 and is a mystery/sci-fi story about Anderson, a man who wakes in a building with no idea where he is or how he got there, before slowly discovering that in each of the rooms around him are a thousand clones of himself, all of whom woke into the same mysterious scenario. To escape he needs to outwit his 'selves' whilst overcoming the realisation that he is not the only Anderson... We're a low budget but extremely professional production full of energy and ambition. We raised our modest £5k budget from 150 individuals around the world and attracted some exceptional crew to this Lincoln based production. We have an executive producer who is currently working on a film with Richard Aoyade (Submarine, The IT Crowd) which stars Jesse Eisenberg (The Social Network). We also have a Visual Effects team who worked on Burn After Reading and Sex and the City, Sound Designers who produce Hollywood trailers (Red Tails, Skyline to name just a couple) and a BAFTA award winning Cinematographer. We've been so lucky to bring this talented team of people together for this local production. We've also joined forces with some large companies to make this film happen and are currently working alongside Western Digital to promote the film whilst it goes through Post-Production. To find out more about Mouse X take a look at our Facebook page www.facebook.com/mouseshortfil

Anisotropic Aerogels for Studying Superfluid 3^3He

It may be possible to stabilize new superfluid phases of $^{3}$He with anisotropic silica aerogels. We discuss two methods that introduce anisotropy in the aerogel on length scales relevant to superfluid $^{3}$He. First, anisotropy can be induced with uniaxial strain. A second method generates anisotropy during the growth and drying stages. We have grown cylindrical $\sim$98% aerogels with anisotropy indicated by preferential radial shrinkage after supercritical drying and find that this shrinkage correlates with small angle x-ray scattering (SAXS). The growth-induced anisotropy was found to be $\sim90^\circ$ out of phase relative to that induced by strain. This has implications for the possible stabilization of superfluid phases with specific symmetry.Comment: 6 pages, 4 figures, submitted to Quantum Fluids and Solids (QFS) conference 200

Cooper on Ancient Ethics

This review of John Cooper's fine collection of essays Reason and Emotion focuses mainly on his paper "Contemplation and Happiness: A Reconsideration". In this article, Cooper alters his view -- found in his book Reason and Human Good in Aristotle - on the relation between the accounts of happiness in Books I and X of the Nicomachean Ethics. He now aims for an interpretation which avoids inconsistency between the accounts of happiness in Books I and X, an interpretation which does not see Book X as allowing that the morally vicious thinker can be happy. I argue that Cooper does not succeed. For, on the one hand, he has Book I emphasise that all kinds of virtuous activity, and especially intellectual activity, are necessary for happiness. But in explaining how, for Aristotle, the unintellectual but morally virtuous kind of happy life can be happy, he asserts that Book X affirms that activity with a kinship to divine activity - for example, morally virtuous behavior on its own -- is sufficient for happiness. Hence, his interpretation has Book I assert and Book X deny that all kinds of virtuous behavior, and especially intellectual activity, are necessary for happiness. Also, by making activity with a kinship to divine activity sufficient for happiness in Book X, he commits Aristotle to happiness for the morally vicious thinker, since human intellectual activity on its own has a greater kinship to divine activity than morally virtuous action on its own.Review articl

Syndrome X

JS, a 34-year-old contractor, presented with a two day history of a sore throat. He was noted to have become increasingly centrally obese since his last visit – which he blamed on having gotten married in the interim – and was known to be a smoker. JS’ sore throat was his priority. However, a family history of diabetes mellitus and his history of ‘borderline’ hypertension were of more concern to his doctor. Is this the metabolic syndrome? How should this patient be managed? With a name as elusive as Syndrome X, it is all too easy to dismiss the topic as a rather exotic phenomenon for the internists and researchers to deal with. Nevertheless, what was described as Syndrome X in 1988 by Gerald Reaven and is now referred to as metabolic syndrome, appears to be one of the commonest conditions encountered in general practice. The metabolic syndrome, being a syndrome should innately be a collection of signs and symptoms of a pathological process together constituting a picture of a particular clinical condition warranting particular management. The gist of it all can be seen to lie in different perspectives; the metabolic syndrome can be seen as: • ‘simply’ a clustering of cardiovascular risk factors – possibly preventable and treatable or, • a multiplex of metabolic risk conditions namely atherogenic dyslipidaemia, hypertension, glucose intolerance, a proinflammatory and a prothrombotic state. This offers, perhaps, a more pathophysiological description of the condition. When it comes to the young gentleman described above, dismissing his possible collection of risk factors or failing to give them their due importance can result in the loss of a precious opportunity at preventive care which is definitely neither exotic nor beyond the scope of the primary care physician.peer-reviewe

On Yao's method of translation

Machine Translation, i.e., translating one kind of natural language to another kind of natural language by using a computer system, is a very important research branch in Artificial Intelligence. Yao developed a method of translation that he called ``Lexical-Semantic Driven". In his system he introduced 49 ``relation types" including case relations, event relations, semantic relations, and complex relations. The knowledge graph method is a new kind of method to represent an interlingua between natural languages. In this paper, we will give a comparison of these two methods. We will translate one Chinese sentence cited in Yao�s book by using these two methods. Finally, we will use the relations in knowledge graph theory to represent the ``relations" in Lexical-Semantic Driven, and partition the relations in Lexical-Semantic Driven into groups according to the relations in knowledge graph theory

Search for C=+C=+ charmonium and bottomonium states in e+e−→γ+Xe^+e^-\to \gamma+ X at B factories

We study the production of $C=+$ charmonium states $X$ in $e^+e^-\to \gamma + X$ at B factories with $X=\eta_c(nS)$ (n=1,2,3), $\chi_{cJ}(mP)$ (m=1,2), and $^1D_2(1D)$. In the S and P wave case, contributions of tree-QED with one-loop QCD corrections are calculated within the framework of nonrelativistic QCD(NRQCD) and in the D-wave case only the tree-QED contribution are considered. We find that in most cases the QCD corrections are negative and moderate, in contrast to the case of double charmonium production $e^+e^-\to J/\psi + X$, where QCD corrections are positive and large in most cases. We also find that the production cross sections of some of these states in $e^+e^-\to \gamma + X$ are larger than that in $e^+e^-\to J/\psi + X$ by an order of magnitude even after the negative QCD corrections are included. So we argue that search for the X(3872), X(3940), Y(3940), and X(4160) in $e^+e^-\to \gamma + X$ at B factories may be helpful to clarify the nature of these states. For completeness, the production of bottomonium states in $e^+e^-$ annihilation is also discussed.Comment: 13pages, 4 figure