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See detailTransiting exoplanets from the CoRoT space mission IX. CoRoT-6b: a transiting `hot Jupiter' planet in an 8.9d orbit around a low-metallicity star
Fridlund, M.; Hebrard, G.; Alonso, R. et al

in Astronomy and Astrophysics (2010), 512

The CoRoT satellite exoplanetary team announces its sixth transiting planet in this paper. We describe and discuss the satellite observations as well as the complementary ground-based observations ... [more ▼]

The CoRoT satellite exoplanetary team announces its sixth transiting planet in this paper. We describe and discuss the satellite observations as well as the complementary ground-based observations - photometric and spectroscopic - carried out to assess the planetary nature of the object and determine its specific physical parameters. The discovery reported here is a `hot Jupiter' planet in an 8.9d orbit, 18 stellar radii, or 0.08 AU, away from its primary star, which is a solar-type star (F9V) with an estimated age of 3.0 Gyr. The planet mass is close to 3 times that of Jupiter. The star has a metallicity of 0.2 dex lower than the Sun, and a relatively high $^7$Li abundance. While thelightcurveindicatesamuchhigherlevelof activity than, e.g., the Sun, there is no sign of activity spectroscopically in e.g., the [Ca ] H&K lines. [less ▲]

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See detailRfx6 is an Ngn3-dependent winged helix transcription factor required for pancreatic islet cell development.
Soyer, Josselin; Flasse, Lydie ULiege; Raffelsberger, Wolfgang et al

in Development (2010), 137(2), 203-12

The transcription factor neurogenin 3 (Neurog3 or Ngn3) controls islet cell fate specification in multipotent pancreatic progenitor cells in the mouse embryo. However, our knowledge of the genetic ... [more ▼]

The transcription factor neurogenin 3 (Neurog3 or Ngn3) controls islet cell fate specification in multipotent pancreatic progenitor cells in the mouse embryo. However, our knowledge of the genetic programs implemented by Ngn3, which control generic and islet subtype-specific properties, is still fragmentary. Gene expression profiling in isolated Ngn3-positive progenitor cells resulted in the identification of the uncharacterized winged helix transcription factor Rfx6. Rfx6 is initially expressed broadly in the gut endoderm, notably in Pdx1-positive cells in the developing pancreatic buds, and then becomes progressively restricted to the endocrine lineage, suggesting a dual function in both endoderm development and islet cell differentiation. Rfx6 is found in postmitotic islet progenitor cells in the embryo and is maintained in all developing and adult islet cell types. Rfx6 is dependent on Ngn3 and acts upstream of or in parallel with NeuroD, Pax4 and Arx transcription factors during islet cell differentiation. In zebrafish, the Rfx6 ortholog is similarly found in progenitors and hormone expressing cells of the islet lineage. Loss-of-function studies in zebrafish revealed that rfx6 is required for the differentiation of glucagon-, ghrelin- and somatostatin-expressing cells, which, in the absence of rfx6, are blocked at the progenitor stage. By contrast, beta cells, whose number is only slightly reduced, were no longer clustered in a compact islet. These data unveil Rfx6 as a novel regulator of islet cell development. [less ▲]

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See detailChimiothérapie néoadjuvante dans les cancers "tête et cou"
Piret, Pascal ULiege; Demez, Pierre ULiege; Moreau, Pierre ULiege et al

in Revue Médicale de Liège (2010)

Les cancers de la sphère oto-rhino-laryngologique représentent 5 % des cancers et sont assez souvent diagnostiqués à un stade avancé. Leur traitement nécessite une approche multidisciplinaire comprenant ... [more ▼]

Les cancers de la sphère oto-rhino-laryngologique représentent 5 % des cancers et sont assez souvent diagnostiqués à un stade avancé. Leur traitement nécessite une approche multidisciplinaire comprenant la chirurgie, la radiothérapie et/ ou la chimiothérapie. La chimiothérapie permet d'améliorer la survie lorsqu'elle est appliquée en association avec la radiothérapie (6,5% de bénéfice absolu en survie globale) dans les maladies localement avancées. La chimiothérapie d'induction ou néoadjuvante a fait l'objet de nombreuses études, mais n'a jamais clairement montré de bénéfice excepté dans le but d'une préservation laryngée. Les nouveaux schémas de chimiothérapie comprenant un taxane ont fait renaître un intérêt pour le traitement d'induction. Quelques études randomisées ont montré un bénéfice en termes de taux de réponse, survie sans maladie ou survie globale lorsque le docetaxel est associé au cisplatine-5FU. Cependant, le bénéfice de l'ajout d'un traitement d'induction à la radiochimiothérapie concomitante reste controversé. De nouvelles études sont en cours. A l'heure actuelle, la chimiothérapie d'induction n'est recommandée en routine que dans la perspective d'une préservation laryngée. [less ▲]

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See detailImplicit Differentiation with Microscopes
Bair, Jacques ULiege; Henry, Valérie ULiege

in Mathematical Intelligencer (2010), 32(1), 53-55

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See detailLa production de bioéthanol à partir de biomasse lignocellulosique
Didderen, I.; Destain, Jacqueline ULiege; Thonart, Philippe ULiege

Article for general public (2010)

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See detailJe nage donc j'écris, ou "l'auteur amphibien"
Letawe, Céline ULiege

Article for general public (2010)

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See detailGeneralized power method for sparse principal component analysis
Nesterov, Yurii; Richtarik, Peter; Journee, Michel ULiege et al

in Journal of Machine Learning Research (2010), 11

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See detailTransfert des méthodes analytiques
Rozet, Eric ULiege; Hubert, Philippe ULiege

Learning material (2010)

Un transfert analytique est un processus complet qui consiste à transférer physiquement une méthode analytique préalablement validée d’un laboratoire émetteur à un laboratoire receveur mais aussi et ... [more ▼]

Un transfert analytique est un processus complet qui consiste à transférer physiquement une méthode analytique préalablement validée d’un laboratoire émetteur à un laboratoire receveur mais aussi et surtout à s’assurer que ce dernier maîtrise cette méthode dans son environnement. Ces transferts de méthodes analytiques sont pleinement inclus dans le développement de nouveaux produits chimiques, pharmaceutiques, cosmétiques, agroalimentaires… En effet, la progression des produits de R&D vers les opérations industrielles et leur commercialisation nécessite le transfert des méthodes de contrôle de production. D’autre part, des contraintes socio-économiques particulières impliques le transfert de méthodes analytiques, telles que la rationalisation des sites de fabrication, la sous-traitance analytique, les achats/ventes de produits en cours de développement et la consolidation/fusion des groupes pharmaceutiques. [less ▲]

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See detailAn Improved Methodology for Filling Missing Values in Spatiotemporal Climate Dataset: Application to Tanganyika Lake Dataset
Sorjamaa, Antti; Lendasse, Amaury; Cornet, Yves ULiege et al

in Computational Geosciences (2010), 14(1), 55-64

In this paper, an improved methodology for the determination of missing values in a spatio-temporal database is presented. This methodology performs denoising projection in order to accurately fill the ... [more ▼]

In this paper, an improved methodology for the determination of missing values in a spatio-temporal database is presented. This methodology performs denoising projection in order to accurately fill the missing values in the database. The improved methodology is called EOF Pruning and it is based on an original linear projection method called Empirical Orthogo- nal Functions (EOF). The experiments demonstrate the performance of the improved methodology and present a comparison with the original EOF and with a widely-used Optimal Interpolation method called Objective Analysis. [less ▲]

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See detailA Platform for High Performance and Flexible Virtual Routers on Commodity Hardware
Egi, Norbert; Greenhalgh, Adam; Handley, Mark et al

in ACM SIGCOMM Computer Communication Review (2010, January)

Multi-core CPUs, along with recent advances in memory and buses, render commodity hardware a strong candidate for software router virtualization. In this context, we present the design of a new platform ... [more ▼]

Multi-core CPUs, along with recent advances in memory and buses, render commodity hardware a strong candidate for software router virtualization. In this context, we present the design of a new platform for virtual routers on modern PC hardware. We further discuss our design choices in order to achieve both high performance and flexibility for packet processing. [less ▲]

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See detailRecent developments in simulation, optimization and control of flexible multibody systems
Bruls, Olivier ULiege

Scientific conference (2010, January)

This talk addresses some recent extensions of the finite element approach for the analysis, design and control of flexible mechanisms. A particular attention is devoted to modular simulation concepts ... [more ▼]

This talk addresses some recent extensions of the finite element approach for the analysis, design and control of flexible mechanisms. A particular attention is devoted to modular simulation concepts, advanced time integration methods, efficient sensitivity analysis and topology optimization problems. Practical applications of those techniques can be found in various fields of engineering, e.g. in automotive engineering (vehicle suspensions, powertrains), aerospace engineering (landing gears, flaps, deployable space structures), robotics, machine tools, biomechanics or biomedical instruments. Firstly, an integrated simulation approach will be presented for articulated systems composed of rigid bodies, flexible bodies, kinematic joints, actuators, sensors and control units. I will focus on some numerical aspects concerning the time integration of the equations of motion which have the structure of strongly coupled differential-algebraic equations on a Lie group. The treatment of large rotation variables and the coupling between control state variables and mechanical generalized coordinates will be discussed in more detail. Secondly, based on this simulation tool, a particular class of optimization problems in multibody dynamics will be considered, i.e. the topology optimization of structural components. Generally, topology optimization techniques use simplified quasi-static load cases to mimic the complex dynamic loadings in service. In contrast, I will present an optimization procedure which properly accounts for the actual dynamic interactions which occur during the motion of the flexible multibody system. The method relies on an efficient sensitivity analysis based on a semi-analytical direct differentiation approach. In order to illustrate the benefits of the proposed design approach, the optimization of a two degrees-of-freedom robot arm with flexible truss linkages will be analyzed. Finally, I will discuss some perspectives for the integrated control-structure optimization of multibody systems. [less ▲]

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See detailGCXGC coupled to fast scanning quadrupole MS for trace analysis of POPs
Kinet; De Pauw, Edwin ULiege; Focant, Jean-François ULiege

in Book of abstracts (2010, January)

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See detailA ‘cook book’ method for dioxin analysis
Focant, Jean-François ULiege; Shirkhan; Patterson Jr

in Book of abstract (2010, January)

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See detailPrise en charge pluridisciplinaire d'une parodontite juvénile: Traitement Paro-Ortho-Prothétique
LAMBERT, France ULiege; ROMPEN, Eric ULiege

in Le point (2010), 218(Janvier -Février), 27-30

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See detailNumerical Modelling of Thin-Walled Stainless Steel Structural Elements in Case of Fire
Lopes, Nuno; Vila Real, Paulo; Simoes da Silva, Luís et al

in Fire Technology (2010), 46(1), 91-108

In this paper, the structural response of stainless steel thin-walled elements submitted to fire is analysed numerically by means of the geometrically and materially non-linear Finite Element program ... [more ▼]

In this paper, the structural response of stainless steel thin-walled elements submitted to fire is analysed numerically by means of the geometrically and materially non-linear Finite Element program SAFIR, including imperfections. In order to make these simulations, two main changes in the program were made: (i) the code was changed in order to deal with the stainless steel 2D material constitutive law to be used with shell elements and (ii) the possibility of the program to take into account residual stresses with shell finite elements was introduced. The stainless steel stress–strain relationship at high temperatures was based on the one presented in part 1.2 of Eurocode 3. To model the strain hardening exhibited by the stainless steels, using the shell element formulation, an approximation to the Eurocode 3 constitutive law was needed. Local and global geometrical imperfections were considered in the simulations. The paper shows the influence of the residual stresses on the ultimate load-carrying capacity of thin-walled stainless steel structural elements in case of fire. [less ▲]

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See detailRiddles and Counterpoint: Mozart's Pupil Franz Jacob Freystädtler
Steyaert, Kris ULiege; Sprague, Catherine

in Newsletter of the Mozart Society of America (2010), XIV(1), 14-17

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See detailAnthropogenic and naturally-produced organobrominated compounds in marine mammals from Brazil
Dorneles, Paulo R; Lailson-Brito, José; Dirtu, Alin C et al

in Environment International (2010), 36(1), 60-67

Liver samples from 51 cetaceans, comprising 10 species, stranded between 1994 and 2006 in a highly industrialized and urbanized region in Southeast Brazil, were analyzed for polybrominated diphenyl ethers ... [more ▼]

Liver samples from 51 cetaceans, comprising 10 species, stranded between 1994 and 2006 in a highly industrialized and urbanized region in Southeast Brazil, were analyzed for polybrominated diphenyl ethers (PBDEs) and methoxylated-PBDEs (MeO-PBDEs). A concentration range of PBDEs (3-5960 ng/g lw) similar to that observed in Northern Hemisphere dolphins was found. MeO-PBDE concentrations in continental shelf (CS) dolphins from Brazil are among the highest detected to date in cetaceans (up to 250 µg/g lw). Higher [Sigma]MeO-PBDE concentrations were measured in CS and oceanic dolphins than in estuarine dolphins. The [Sigma]PBDE/[Sigma]MeO-PBDE ratio varied significantly ranging from a mean value of 7.12 to 0.08 and 0.01 for estuarine, CS and oceanic species, respectively. A positive correlation was observed between [Sigma]PBDE and year of stranding of male estuarine dolphins (Sotalia guianensis), which suggests temporal variation in the exposure. Placental transfer of organobrominated compounds was also evidenced in S. guianensis. [less ▲]

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See detailADDICTION AU MMORPG : QUAND LE REEL EST SOUS L’EMPRISE DU VIRTUEL
Bataille, Stéphanie; Triffaux, Jean-Marc ULiege

Poster (2010, January)

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See detailRéanimation aux urgences pédiatriques
Battisti, Oreste ULiege; Brasseur, Edmond ULiege; D'Orio, Vincenzo ULiege et al

Learning material (2010)

précis des principales situations aux urgences pédiatriques

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