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Results 1221-1240 of 10895.
 Hot stars in the whole CoRoT missionBriquet, Maryline  Conference (2013, March 20) Detailed reference viewed: 20 (0 ULg) Ramses. A tool for linguistic analysis of Late EgyptianWinand, Jean Conference (2013, March 20) Detailed reference viewed: 6 (2 ULg)Les problèmes cutanés liés aux médicamentsGADISSEUR, Romy Conference (2013, March 19) Les problèmes cutanés liés aux médicaments Inhibition of Fusarium culmorum and Cochliobolus sativus growthKaddes, Amine Poster (2013, March 19) Detailed reference viewed: 27 (6 ULg)Highly non-classical symmetric states of an N-qubit systemBaguette, Dorian ; Martin, John Poster (2013, March 19) Detailed reference viewed: 11 (6 ULg)Weakening of superradiance due to dipole-dipole interactionsDamanet, François ; Martin, John Poster (2013, March 19) Detailed reference viewed: 19 (11 ULg)Chroniques archéologiques sur l'embouchure du Tibre. Le site de la Schola du Trajan à Ostia Antica.Morard, Thomas Scientific conference (2013, March 19) Detailed reference viewed: 21 (1 ULg) Valorisation de l'épeautre dans l'alimentation des bovinsBeckers, Yves Scientific conference (2013, March 19) Detailed reference viewed: 27 (0 ULg)Multifractality of quantum wave functionsMartin, John ; ; et alPoster (2013, March 19) We study the multifractality of individual wave packets in a periodically kicked system through a combination of numerical and analytical works. We consider a version of the mathematical Ruijsenaars ... [more ▼] We study the multifractality of individual wave packets in a periodically kicked system through a combination of numerical and analytical works. We consider a version of the mathematical Ruijsenaars-Schneider model and reinterpreted it physically in order to describe the spreading with time of quantum wave packets in a system where multifractality can be tuned by varying a parameter [1]. We compare different methods to measure the multifractality of wave packets and identify the best one. We find the multifractality to decrease with time until it reaches an asymptotic limit, which is different from the multifractality of eigenvectors but related to it, as is the rate of the decrease. Our results could guide the study of experimental situations where multifractality is present in quantum systems. [less ▲] Detailed reference viewed: 11 (2 ULg)Self-Defining Memories and Identity in Schizophrenia: Preliminary Results.Boulanger, Marie ; ; Blairy, Sylvie Poster (2013, March 18) The reciprocal relationship between autobiographical memory (AM) and identity is well known. In schizophrenia, there is evidence that both identity and AM are impaired. Indeed, identity has been described ... [more ▼] The reciprocal relationship between autobiographical memory (AM) and identity is well known. In schizophrenia, there is evidence that both identity and AM are impaired. Indeed, identity has been described as fragmented, instable or still discontinuous in these patients (Boulanger et al., submitted; deBonis et al., 1995; Nieznanski, 2004). Further, schizophrenia patients’ (SCh) AM impairments were described as difficulties to retrieve specific memories (Cuervo-Lombard et al., 2007; D’argembeau et al., 2008; Neumann et al., 2007; Wood et al., 2006). SCh have specificity impairment for mill run autobiographical memories (AMs) and also, for AMs particularly important for construction and continuity to identity as self-defining memories (SDMs; Benounna-Greene, 2001; Raffard et al., 2009, 2010; Robinson and Taylor, 1998). SDMs have been particularly relevant in understanding the relationship between the identity and AM. Identity emerges during late adolescence and early adulthood period called “remimiscence bump period” because, it is characterized by a profusion of recalled memories in comparison to others periods of life span. Possibly, many memories from this period are of SDMs (Singer & Salovey, 1993) and have a powerful effect in binding the identity to a specific reality. Consequently, we supposed that identity impairments showed by SCch are related to SDMs deficits. 19 SCh and 19 healthy controls paired participated to this study. They were asked to give ten enduring “I am” statements that they felt “defined their identity.” Then, they selected the three statements among the ten, which are the “most personally significant to their sense of identity”. They were asked to recall three SDMs by each of three statements selected. Afterwards, they were asked to give: (1) their age for each statement when they felt it was a significant part of their identity, (2) their age at the time that the remembered event occurred. In parallel, the participants were completed neuropsychological measures, BDI-II, PANSS and, an identity stability measure. The results are discussed on the light of previous research [less ▲] Detailed reference viewed: 24 (2 ULg)Evaluation of the Energy Performance of an Organic Rankine Cycle-Based Micro Combined Heat and Power System Involving a Hermetic Scroll ExpanderOudkerk, Jean-François ; Quoilin, Sylvain ; Declaye, Sébastien et alin Journal of Engineering for Gas Turbines & Power (2013), 135(4), Detailed reference viewed: 56 (10 ULg) Transport properties of an intermetallic with pseudo-hollandite structure as potential thermoelectric materials: the example of TlxCr5Se8.; Nunna, Raghavendra ; et alin Chemistry of Materials (2013), 25(9), 18091815 The transport properties of TlxCr5Se8 pseudo-hollandite have been investigated, from 2 up to 800 K. A semiconducting behavior is observed from 200 down to 2 K, with a transition observed at T ∼ 43 K, at ... [more ▼] The transport properties of TlxCr5Se8 pseudo-hollandite have been investigated, from 2 up to 800 K. A semiconducting behavior is observed from 200 down to 2 K, with a transition observed at T ∼ 43 K, at the antiferromagnetic transition. Above 200 K, small values of ρ are obtained, close to 10 mΩ·cm at 800 K. The Seebeck coefficient continuously increases in this range of temperature, reaching 300 μV/K at 800 K. Moreover, the thermal conductivity of this low dimensional structure is small, leading to a figure of merit ZT = S2T/(ρκ) = 0.5 at 800 K. All the electronic transport properties can be fitted by a standard Boltzmann equation, with a large scattering parameter (r = 3/2, characteristic of diffusion by ionized impurities). The combination of small thermal conductivity, large scattering parameter, and low concentration of carriers (4.5 × 1019 cm−3) is at the origin of this large ZT. [less ▲] Detailed reference viewed: 3 (3 ULg)Troubles spécifiques de développement du langage. Théorie, évaluation et prise en chargeMaillart, Christelle Scientific conference (2013, March 18) Detailed reference viewed: 51 (3 ULg)Interactions de glycolipides avec des membranes biomimétiquesDeleu, Magali Scientific conference (2013, March 18) Les surfactants à base de sucre sont des composés d’intérêt pour les domaines alimentaire, cosmétique et pharmaceutique de par leur origine naturelle, leur biodégradabilité élevée et leur biocompatibilité ... [more ▼] Les surfactants à base de sucre sont des composés d’intérêt pour les domaines alimentaire, cosmétique et pharmaceutique de par leur origine naturelle, leur biodégradabilité élevée et leur biocompatibilité. Récemment, certains ont également montré un potentiel dans le domaine de la protection des plantes. Depuis quelques années, les surfactants de type bolaforme ont reçu une attention particulière surtout pour leur potentiel d’exploitation en tant qu’agent d’encapsulation ou de vectorisation de médicaments. Leur structure est composée de deux têtes polaires connectées par un bras espaceur hydrophobe. Parmi les bolaamphiphiles, ceux à base de sucre offrent l’avantage de fournir une hydrosolubilité importante et une cytotoxicité réduite. Une connaissance approfondie des propriétés tensioactives et membranaires de ces nouveaux tensioactifs est une clef importante dans la compréhension de leurs mécanismes, d’une part, et d’autre part, dans l’optique d’une démarche prédictive dans la conception d’agents tensioactifs ciblant une application précise, du domaine physico-chimique ou biologique. Les outils tels que la technique de la cuve de Langmuir, la calorimétrie de titration isotherme, la spectroscopie de fluorescence et la spectroscopie infra-rouge ont été exploités afin de mettre en évidence l’influence de la longueur du bras hydrophobe, de la présence d’insaturation, de la stéréochimie des carbones anomères et de la nature des sucres sur les propriétés interfaciales et d’interaction/déstabilisation des membranes biologiques des bolaformes de sucre. [less ▲] Detailed reference viewed: 11 (1 ULg)Microbiological diagnosis of infectious keratitisMELIN, Pierrette Conference (2013, March 16) Detailed reference viewed: 7 (0 ULg)Automatic Aircraft Cargo Load Planning with Pick-up and DeliveryLurkin, Virginie ; Schyns, Michael Conference (2013, March 15) This research aims to develop a new mixed integer linear program to solve the containers assignment problem when pickup and deliveries are considered. Given a pool of ULDs and an aircraft with multiple ... [more ▼] This research aims to develop a new mixed integer linear program to solve the containers assignment problem when pickup and deliveries are considered. Given a pool of ULDs and an aircraft with multiple destinations, we want to obtain a loading plan determining at which positions the ULDs must be assigned in order to minimize simultaneous the quantity of fuel consumed and the number of re-handles. The loading plan should also ensure a number of structural, safety and manoeuvrability constraints. The model has been tested on real instances and provides encouraging results. [less ▲] Detailed reference viewed: 23 (9 ULg)Allosteric inhibition of VIM metallo-beta-lactamase by a camelid nanobodySohier, Jean ; Laurent, Clémentine ; et alin Biochemical Journal (2013), 450(3), 477-486 Metallo-β-lactamase (MβL) enzymes are usually produced by multiresistant Gram-negative bacterial strains and have spread worldwide. An approach based on phage display was employed to select single-domain ... [more ▼] Metallo-β-lactamase (MβL) enzymes are usually produced by multiresistant Gram-negative bacterial strains and have spread worldwide. An approach based on phage display was employed to select single-domain antibody fragments (VHHs also called Nanobodies) that would inhibit the clinically relevant VIM-4 MβL. Out of more than 50 selected nanobodies, only the NbVIM_38 nanobody inhibited VIM-4. The paratope, inhibition mechanism and epitope of NbVIM_38 nanobody were then characterised. An alanine scan of the NbVIM_38 paratope showed that its binding was driven by hydrophobic amino acids. The inhibitory concentration was in the µM range for all tested β-lactams. In addition, the inhibition was found to follow a mixed hyperbolic profile with a predominantly uncompetitive component. Moreover, substrate inhibition was recorded only after nanobody binding. These kinetic data are indicative of a binding site that is distant from the active site. This finding was confirmed by epitope mapping analysis that was performed using peptides, and which identified two stretches of amino acids in the L6 loop and at the end of the alpha2 helix. Because this binding site is distant from the active site and alters both the substrate binding and catalytic properties of VIM-4, this nanobody can be considered as an allosteric inhibitor. [less ▲] Detailed reference viewed: 5 (4 ULg)Statistical analysis of Saturn's UV auroral outer emissionGrodent, Denis ; Radioti, Aikaterini ; et alConference (2013, March 15) Recent observations of Saturn’s aurora with the UVIS spectrograph on-board Cassini not only confirm the presence of a quasi-permanent partial ring of emission equatorward of the main auroral oval, but ... [more ▼] Recent observations of Saturn’s aurora with the UVIS spectrograph on-board Cassini not only confirm the presence of a quasi-permanent partial ring of emission equatorward of the main auroral oval, but they also increase the number of positive cases and allow for a statistical analysis of the characteristics of this outer emission. This faint but distinct auroral feature appears at both hemispheres in the nightside sector. It magnetically maps to relatively large distances in the nightside magnetosphere, on the order of 9 RS. It was initially thought that pitch angle scattering of electrons into the loss cone by whistler waves would be responsible for the outer auroral emission. Rough estimates suggested that a suprathermal electron population observed with Cassini in the nightside sector between 7 and 10 RS might power this process. However, a new analysis of 7 years of Cassini electron plasma data indicates the presence of layers of upward and downward field aligned currents. They appear to be part of a large-scale current system involving dayside-nightside asymmetries as well as trans- hemispheric variations. This system comprises a net upward current layer, carried by warm electrons, limited to the nightside sector which may as well generate the outer UV auroral emission. The growing dataset of UVIS spectro- images is used to find any such asymmetries in the outer auroral emission. [less ▲] Detailed reference viewed: 14 (0 ULg)Montages critiquesHamers, Jérémy ; Hagelstein, Maud Scientific conference (2013, March 15) Detailed reference viewed: 16 (1 ULg) |
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