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See detailLes premières plantes terrestres (Embryophytes) : origine et diversification - deuxième partie.
Gonez, Paul ULg; Prestianni, Cyrille ULg; Strullu-Derrien, Marie-Christine et al

Conference (2009)

Detailed reference viewed: 35 (1 ULg)
Peer Reviewed
See detailHyperfine Structure and Isotope Shifts in Iron Atoms
Krins, Stéphanie ULg; Oppel, S.; Huet, Nicolas ULg et al

Conference (2009)

Detailed reference viewed: 26 (4 ULg)
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See detailUse of cDNA-AFLP to study the defence-related gene expression in bananas (Musa spp.), inoculated with Colletotrichum musae responsible of crown rot
Lassois, Ludivine ULg; de Lapeyre de Bellaire, Luc; Jijakli, Haissam ULg

Conference (2009)

Crown rot disease of bananas is widespread in producing countries and is considered as the most important post-harvest disease of exported bananas. Variations of susceptibility to the disease have been ... [more ▼]

Crown rot disease of bananas is widespread in producing countries and is considered as the most important post-harvest disease of exported bananas. Variations of susceptibility to the disease have been noted between bananas but the origins still unknown. The biological responses of the fruit, including physiological change and disease susceptibility are controlled and regulated by gene expression. One way to understanding the reactions involved in variation of banana susceptibility to the disease in relation to their physiological state, is to study the expression of genes involved in these processes. To this purpose, crown sample previously inoculated with C. musae and showing 2 levels of susceptibility (very high and very low) were collected to be compared. Crown sample of each susceptibility level was collected at two different maturity stages: at harvest and 13 days after harvest (3 days after ripening). Collected crowns were immediately freeze-dried, an original method to conserve gene expression. cDNA-AFLP was applied on these 4 cell populations in order to highlight the differential transcription of genes whose function is "a priori" unknown. The cDNA-AFLP result was confirmed using quantitative real-time reverse transcription PCR. Various defence-related genes were identified and will be presented. [less ▲]

Detailed reference viewed: 40 (2 ULg)
Peer Reviewed
See detailContrastieve onderzoeksmodellen onder de loep
Rasier, Laurent ULg; Hiligsmann, Philippe

Conference (2009)

Detailed reference viewed: 23 (1 ULg)
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See detailA 35nm diameter vertical silicon nanowire short-gate tunnelFET
Vandooren, A.; Rooyackers, R.; Leonelli, D. et al

Conference (2009)

A top-down integration scheme for silicon vertical nanowire (NW) tunnel field-effect transistors (TFETs) with a 35nm nanowire dimension and using state-of-the-art metal gate and high-k gate dielectric is ... [more ▼]

A top-down integration scheme for silicon vertical nanowire (NW) tunnel field-effect transistors (TFETs) with a 35nm nanowire dimension and using state-of-the-art metal gate and high-k gate dielectric is demonstrated. Using the short-gate concept [1], the ambipolar behavior of the TFET is successfully suppressed. The measured TFET performance is not yet beyond that of the MOSFET, most likely due to the use of silicon that has a large bandgap and the use of ion implantation for the formation of the tunnel junction which results in a low junction abruptness. To boost the device performance, a low thermal budget processing could be used on etched nanowires in a substrate with epitaxial grown junction, in order to increase the abruptness of the tunnel junction. [less ▲]

Detailed reference viewed: 157 (3 ULg)
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See detailQuantum Entanglement Antibunching and Saturation of Atoms in Dipole Blockade
Gillet, Jérémie ULg; Agarwal, G. S.; Bastin, Thierry ULg

Conference (2009)

Detailed reference viewed: 6 (2 ULg)
Peer Reviewed
See detailEvolutionary potential of the Fallopia spp. complex in Europe
Vanderhoeven, Sonia ULg; Krebs, Christine; Schaffner, Urs et al

Conference (2009)

Detailed reference viewed: 17 (0 ULg)
Peer Reviewed
See detailLa vente de gré à gré
Kohl, Benoît ULg

Conference (2009)

Detailed reference viewed: 5 (0 ULg)
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See detailL'agriculture familiale africaine au coeur des Objectifs du Millénaire pour le Développement (OMD)
Berti, Fabio ULg; Lebailly, Philippe ULg

Conference (2009)

L’agriculture familiale africaine est concernée directement par l’Objectif 1 du Millénaire pour le Développement, de réduire de moitié d’ici 2015 l’extrême pauvreté et la faim. En effet, selon la plupart ... [more ▼]

L’agriculture familiale africaine est concernée directement par l’Objectif 1 du Millénaire pour le Développement, de réduire de moitié d’ici 2015 l’extrême pauvreté et la faim. En effet, selon la plupart des observateurs, 70% des pauvres sont localisés dans les zones rurales et sont agriculteurs. Dans ce contexte, il importe de s’interroger sur l’avenir des exploitations agricoles familiales en Afrique. Après avoir présenté la problématique générale de l’exploitation agricole familiale dans le développement, les auteurs présentent une analyse au départ des constats qu’ils ont pu réaliser, respectivement pour les filières de rente de la zone forestière au Cameroun et pour le coton, dans plusieurs pays d’Afrique de l’Ouest. Les analyses sont réalisées à partir des observations effectuées au départ de différentes études financées essentiellement par la Commission européenne au cours de ces dernières années. Il en résulte que le terme « agriculture familiale » recouvre des réalités très différentes avec une différenciation de plus en plus poussée des exploitations agricoles. Dans le même temps, il subsiste de nombreuses exploitations familiales plus « traditionnelles » mêlant des logiques d’autoconsommation et de marché avec des dotations en facteurs plus inégales et donc plus vulnérables. L’enjeu primordial des politiques agricoles qui seront définies sera précisément de prendre en considération la dimension spécifique de ce type d’exploitation, cible prioritaire dans la lutte contre la pauvreté. L’orientation des politiques mises en œuvre autour du seul objectif de la production de biens agricoles ne permettra pas de réduire les disparités internes et souvent croissantes observées. Il convient donc d’intégrer les dimensions sociales et environnementales dans les objectifs des politiques agricoles à mettre en œuvre. [less ▲]

Detailed reference viewed: 112 (21 ULg)
See detailL'intégration sociale des immigrés en Espagne
Brey, Elisa ULg

Conference (2009)

Detailed reference viewed: 11 (3 ULg)
Peer Reviewed
See detailSources of phenotypic variation of life history traits in an invasive species, Senecio inaequidens DC. (Asteraceae)
Monty, Arnaud ULg; Mahy, Grégory ULg

Conference (2009)

The importance of different sources of phenotypic variation, namely adaptation, phenotypic plasticity, environmental maternal effects, ploidy level and genetic drift, were estimated in several life ... [more ▼]

The importance of different sources of phenotypic variation, namely adaptation, phenotypic plasticity, environmental maternal effects, ploidy level and genetic drift, were estimated in several life history traits among populations of an invasive plant species within its invasion range. Several common garden experiments were set out, two of which in a reciprocal transplants experiment. The populations considered in this study were located in Belgium, in France and in the native range of the model species. Senecio inaequidens DC. (Asteraceae) is native to Africa. It was introduced in Europe via wool trade in the late 19th century. In the native range, the species occurs at two co-existing cytotypes: diploid and tetraploid. Only tetraploid individuals are reported in Europe. The particular and well-documented invasion history of S. inaequidens makes it an excellent plant model for evolutionary studies. Several life history traits were measured, related to germination, growth and sexual reproduction. The sources of phenotypic variation in those traits were analysed with respect to climatic variation along altitudinal gradients in the invaded areas. The influence of the ploidy level and the range (native vs introduced) on those traits was also analysed. Results showed that diploid and tetraploid populations differed, mainly in winter survival capacity. Along altitudinal gradients, clinal phenotypic differentiations with a genetic basis were observed among populations. However, environmental maternal effects were found to significantly influence phenotypic variation in areas with harsh climatic conditions. Monty A., Mahy G. 2009. Clinal differentiation during invasion: Senecio inaequidens (Asteraceae) along altitudinal gradients in Europe. Oecologia 159:305–315. Monty A., Lebeau J., Meerts P., Mahy G. 2009. An explicit test for the contribution of environmental maternal effects to rapid clinal differentiation in an invasive plant. Journal of Evolutionary Biology22: 917-936 [less ▲]

Detailed reference viewed: 22 (3 ULg)
See detailLa problématique des méduses sur le plateau continental Ouest Corse, série de données et modélisation
Hecq, Jean-Henri ULg; Goffart, Anne ULg; Collignon, Amandine ULg et al

Conference (2009)

Depuis une dizaine d’années, les eaux côtières corses sont envahies les méduses et en particulier par les Pelagia noctiluca qui présentent une nuisance pour les eaux de baignade, les installations ... [more ▼]

Depuis une dizaine d’années, les eaux côtières corses sont envahies les méduses et en particulier par les Pelagia noctiluca qui présentent une nuisance pour les eaux de baignade, les installations aquacoles et hydrauliques côtières, interfèrent avec la pêche, colmatent les filets et entrent en compétition avec les poissons pour la nourriture. Leurs apparitions dans les eaux côtières sont généralement fortuites, discontinues dans les temps et dans l’espace et souvent sous forme d’essaims. Dans le cadre du programme MEDUSES, subsidié par l’Agence de l’Eau RMC, des observations visuelles directes et des comptages de Pelagia effectués depuis 2003 à partir du quai du port de STARESO montrent une augmentation graduelle de leur abondance de 2004 à 2005 suivie par une augmentation dramatique en 2006 puis une diminution significative les étés 2007 et 2008. La prolifération de Pelagia en 2006 succède à des biomasses particulièrement élevées de mésozooplancton en 2005. On peut émettre l’hypothèse que l’abondance exceptionnelle des proies planctoniques est une des causes de la prolifération. Les Pelagia vivent en essaims dont deux types sont observés en Baie de Calvi: des essaims passifs et des essaims actifs. Les essaims passifs observés dans le port de STARESO contiennent des individus généralement dégradés (perte des tentacules, du manubrium,..), voire moribonds mais qui restent urticants. Parfois réduits à la seule ombrelle, ils se déplacent peu et s’accumulent en grand nombre (parfois plus de 200 par m2), bord à bord, en essaims passifs limités aux trois premiers mètres de la surface. Ces essaims subissent une prédation active par de nombreux poissons sparidés (bogues, sars,...). Ils disparaissent en quelques heures du fait de cette prédation ou par sédimentation massive des animaux morts. Par contre, dans les eaux plus au large, nos mesures in situ de la distribution spatiale de Pelagia noctiluca montrent que durant les pics de 2006, de nombreux organismes sont présents à distance de la côte où ils forment des essaims actifs de 200 m de long et 50 m de large situés entre 10 à 60 m. Dans ces essaims actifs, on observe de 5 à 10 individus par m3. Ceux-ci sont équidistants et nagent activement avec les tentacules étendus, capturant la nourriture. Dans certains cas, des individus moribonds partiellement détruits ou à la fin de leur cycle biologique échappent des essaims actifs et dérivent passivement à la surface, sous l’action du vent et des mouvements de l’eau, vers les zones côtières. Entre ces deux types extrêmes d’essaims, divers cas intermédiaires existent. [less ▲]

Detailed reference viewed: 88 (14 ULg)
See detailThe socio-economic integration of migrants in Spain
Brey, Elisa ULg

Conference (2009)

Detailed reference viewed: 9 (0 ULg)
See detailApplication of a 3-D Super Ensemble to ocean forecast
Lenartz, Fabian ULg; Barth, Alexander ULg; Beckers, Jean-Marie ULg et al

Conference (2009)

Super Ensemble (SE) techniques have recently allowed improving the forecast of various important oceanographic parameters, such as the significant wave height, the speed of sound or the surface drift, by ... [more ▼]

Super Ensemble (SE) techniques have recently allowed improving the forecast of various important oceanographic parameters, such as the significant wave height, the speed of sound or the surface drift, by correcting the prediction at a single or multiple locations, where data were available during the whole training period. However, nowadays common observation systems, such as satellite imagery or drifters, do not always provide information at the exact same locations, hence it is necessary to generalize the approach in order to take benefit of every image or track available. In this study, we try and apply a SE, fed with remote sensing and gliders data, to 3-D hydrodynamic models. The basic idea on which rely the SE methods is that a certain combination of several model runs and possibly data could yield better results than just one single model, even if it has a higher temporal or spatial resolution. As the most efficient techniques are the ones using observations, they rapidly developed and increased in complexity by copying what had been done in the data assimilation community; getting from the simple ensemble mean of the model outputs to their linear combination based on a particle filter. In our present study, we have decided to use the Kalman filter (KF) as it alleviates the need of an a priori determination of the training period length, and does not require the run of a very large ensemble of members. In addition, we apply it in a 3-D framework in order to take benefit of the spatial information contained by each source of measurements. For example, satellite images of sea surface temperature (SST) are very useful to correct the value of this parameter, but depending on the structure of the water column, it can also give a precious guess of how warm or cold is the ocean at 20 m deep. In our experiment the domain of interest is the Ligurian Sea during the last week of September, when part of the set-up for the CalVal08 campaign (SiC Charles Trees) had already taken place. The data assimilated during the training of the filter are SST images from AVHRR, as well as temperature and salinity profiles from two Rutgers University gliders. The models used for the study are three nested models of NCOM, run without data assimilation. The two considered variables are the temperature and the salinity. As our method is designed to work in a multivariate way, salinity forecast can possibly be improved by observing temperature profiles. Statistics are computed for both the training and the testing periods with an independent set of data. In four test cases, we review the impact of both the nature of the assimilated data, and the formulation of the model covariance matrix. At the end, we show that, on the basis of previous model outputs from which we’ve drawn an estimate of the model covariance, RMS error of the forecast in the whole 3-D domain can be reduced by 30%, thanks to the only assimilation of satellite SST images. [less ▲]

Detailed reference viewed: 41 (5 ULg)
See detailSteps Prior to the RAI Instrument Implementation in Belgium
Degey, S; Tancredi, A; Renard, F et al

Conference (2009)

Detailed reference viewed: 8 (0 ULg)
Peer Reviewed
See detailElectrical resistivyt tomography as tool to image preferential flow pathways in soils
Kasteel, Roy; Garré, Sarah ULg; Koestel, Johannes et al

Conference (2009)

Detailed reference viewed: 11 (2 ULg)
Full Text
See detailResemantisation in varieties of Dutch
De Vos, Lien ULg

Conference (2009)

Detailed reference viewed: 22 (1 ULg)
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See detailErythromycin time-kill activity on activated sludge
Louvet, Jean-Noël ULg; Heliun, Yannick; Potier, Olivier et al

Conference (2009)

Detailed reference viewed: 11 (2 ULg)
See detailModeratrice
Parra Santamaria, Lusmiriam Andrea ULg

Conference (2009)

This Forum has been organised in order to discuss different approaches for the bilateral Colombia-Venezuela's conflict that had taken place during the gouvernements of Alvaro Uribe and Hugo Chavez ... [more ▼]

This Forum has been organised in order to discuss different approaches for the bilateral Colombia-Venezuela's conflict that had taken place during the gouvernements of Alvaro Uribe and Hugo Chavez. Several secteors of the society participated in it. We had academics (from different universities in the city), the local journal's president, the Chief of research of the Central Bank (local office in Cartagena). [less ▲]

Detailed reference viewed: 11 (1 ULg)
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See detailAutonomous Learning of Object-specific Grasp Affordance Densities
Detry, Renaud ULg; Başeski, Emre; Krüger, Norbert et al

Conference (2009)

Detailed reference viewed: 25 (2 ULg)
Peer Reviewed
See detailStability-activity relationships in natively unstable proteins
Feller, Georges ULg

Conference (2009)

Detailed reference viewed: 11 (2 ULg)
See detailThe chick embryo as a model to study persistent effects of embryonic protein-undernutrition on postnatal growth and metabolism
Everaert, Nadia ULg; Métayer-Coustard, S.; Willemsen, H. et al

Conference (2009)

Detailed reference viewed: 10 (0 ULg)
See detailDroits d'enregistrement et TVA
Bourgeois, Marc ULg

Conference (2009)

Detailed reference viewed: 4 (0 ULg)
See detailModelling error of a hydrodynamic model of the Mediterranean Sea
Vandenbulcke, Luc ULg; Rixen, M.; Beckers, Jean-Marie ULg et al

Conference (2009)

Detailed reference viewed: 15 (2 ULg)
See detailThe Quiet HMXB Candidates HD 14633 and HD 15137
McSwain, M. V.; Roberts, M. S. E.; Boyajian, T. S. et al

Conference (2009)

The runaway O-type binaries HD 14633 and HD 15137 were likely ejected from the cluster of their birth by supernovae explosions in close binaries. Neither star is a known X-ray source, but they likely ... [more ▼]

The runaway O-type binaries HD 14633 and HD 15137 were likely ejected from the cluster of their birth by supernovae explosions in close binaries. Neither star is a known X-ray source, but they likely contain neutron stars and may be weak stellar wind accretion systems. Hence the two binaries have been classified as "quiet HMXBs". Here we present new optical spectra of these spectroscopic binaries and reassess their orbits. We also present preliminary results from recent XMM-Newton observations, intended to detect the hard power-law spectrum from accreting or quiescent neutron star companions and reveal the evolutionary history of these intriguing runaways. [less ▲]

Detailed reference viewed: 8 (0 ULg)
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See detailExploring the L1-L2 relationship in the L2 acquisition of prosody
Rasier, Laurent ULg; Hiligsmann, Philippe

Conference (2009)

Detailed reference viewed: 46 (1 ULg)
See detailInferring causal relationships using information-theoretic measures
Olsen, Catharina; Meyer, Patrick ULg; Bontempi, Gianluca

Conference (2009)

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See detailA coupled two-scale computational approach for quasi-brittle out-of-plane structural failure
Mercatoris, Benoît ULg; Massart, Thierry J.

Conference (2009)

Detailed reference viewed: 11 (0 ULg)
Peer Reviewed
See detailEco-éthologie de la population de bonobos récemment découverte dans l’ouest de la République Démographique du Congo
Serckx, Adeline ULg; Huynen, Marie-Claude ULg; Beudels-Jamar, Roseline

Conference (2009)

The bonobo, Pan paniscus, an endemic primate of the DRC, forms with the chimpanzee, Pan troglodytes, the pair of species closest to humans. Classified as “Endangered” by the IUCN, it’s seriously ... [more ▼]

The bonobo, Pan paniscus, an endemic primate of the DRC, forms with the chimpanzee, Pan troglodytes, the pair of species closest to humans. Classified as “Endangered” by the IUCN, it’s seriously threatened by the degradation of the forests. Only the creation of protected areas large enough and properly managed can improve its status but requires a good knowledge of the eco-ethology of the local populations. Our project will focus on studying a bonobo population recently discovered in the region of the Lake Tumba, in the west of the DRC. It is characterized by densities never encountered elsewhere, and a preliminary study has revealed significant differences in habitat and food resources in comparison to these of eastern populations. We will contribute to a recently established WWF conservation program by gathering eco-ethological data on bonobos, data that will allow identifying areas to protect, their boundaries and management measures to implement. To do this, we will study the diet of bonobos via direct and indirect observations of their behavior. We will also study the party size and its composition and identify underlying environmental factors. We will assess the bonobos’ home range size and pattern of displacement, which we will correlate with the abundance of food resources to determine whether there is a pattern of occupation of time and space specific to this population. [less ▲]

Detailed reference viewed: 29 (1 ULg)
See detailDetection et analyse des patines intentionelles des bronzes antiques : apport des IBA en faisceau extrait
Mathis, François ULg; Salomon, Joseph; Pichon, Laurent et al

Conference (2009)

Detailed reference viewed: 10 (0 ULg)
See detailTerritory knowledge (B1pc) - Discussion report
Breuer, Christophe ULg

Conference (2009)

Detailed reference viewed: 15 (0 ULg)
Peer Reviewed
See detailRythmes biologiques et comportement animal.
Poncin, Pascal ULg

Conference (2009)

Detailed reference viewed: 16 (3 ULg)
See detailLes premières traces de vie
Javaux, Emmanuelle ULg

Conference (2009)

Detailed reference viewed: 7 (3 ULg)
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See detailThe use of time use surveys to study activity participation: emerging issues
Cools, Mario ULg; Moons, Elke; Wets, Geert

Conference (2009)

Time use surveys often are carried out to identify, classify and quantify social behaviour of people by focusing on the activities that people perform. Time use data, in the transportation field often ... [more ▼]

Time use surveys often are carried out to identify, classify and quantify social behaviour of people by focusing on the activities that people perform. Time use data, in the transportation field often referred to as activity-based data, can be used to study a variety of sociological, economic, and technological phenomena. Studying behaviour, social networks and transport patterns are a few of the topics that can be analysed based on these time use data. This first introductory paper discusses some emerging issues in the collection of travel-related data such as automatic spatial information recording using cell phones and GPS, and survey design experiences. On the one hand new technology offers the opportunity to record at a relative low cost a wide variety of the data, while on the other hand new problems occur. One of such problems for instance is the problems of ‘cold starts’ faced with GPS devices, clouding the first minutes of recording after each restart of the device after it was turned off completely. Notwithstanding, applications of new technologies offer the opportunity for performing detailed space-time analyses in different fields ranging from epidemiology to transportation science. Some of these applications are highlighted in this session. Next to the advantages and potential risks of new technologies, this introductory paper also discusses the combination of different modes to analyze space-time behaviour. In particular, this study investigates potential mixed mode design effects, observed in a large activity-based travel survey, using a PDA application on the one hand, and traditional paper and pencil diaries on the other hand. The mixed-mode effects are analysed using heteroscedastic linear regression models, taking into account not only mode-effects, but also potential fatigue-effects. The results show that in this mixed-mode survey no attrition effects are present, and that the survey mode (PDA versus paper and pencil) has no direct impact on the quantities investigated (number of out-of-home activities reported and number of trips). [less ▲]

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See detailStudy of antibiotics influence on activated sludge behaviour via analysis of exopolymeric substances
Avella, Catalina; Essendoubi, M.; Louvet, Jean-Noël ULg et al

Conference (2009)

Detailed reference viewed: 7 (0 ULg)
See detailRéponse à Harm Pinkster: Relatieve bijzinnen in het Latijn
Longrée, Dominique ULg

Conference (2009)

Detailed reference viewed: 4 (1 ULg)
See detailSaturn Auroral Images and Movies from Cassini UVIS
Pryor, Wayne; Esposito, L.W.; Stewart, A.I.F. et al

Conference (2009)

Cassini’s Ultraviolet Imaging Spectrograph (UVIS) has completed five years of study of Saturn’s atmosphere and auroras. Two long slit spectral channels are used to obtain EUV data from 56.3-118.2 nm and ... [more ▼]

Cassini’s Ultraviolet Imaging Spectrograph (UVIS) has completed five years of study of Saturn’s atmosphere and auroras. Two long slit spectral channels are used to obtain EUV data from 56.3-118.2 nm and FUV data from 111.5-191.3 nm. 64 spatial pixels along each slit are combined with slit motion to construct spectral images of Saturn. Auroral emissions are seen from electron-excited molecular and atomic hydrogen. In 2008-2009 UVIS obtained data with the spacecraft well out of Saturn’s ring plane, permitting UVIS to obtain a number of short movies of the rotating auroral structures. In some movies a cusp-like feature is present near noon inside the oval. One movie from 2008 day 201 shows parallel linear features on the day side almost at right angles to the main auroral oval that appear, then lengthen, separate in the middle, and then fade away. The same movie also shows one bright "polar flare" inside the oval. A few of the most recent images were obtained at sufficiently close range that 2 spacecraft slews were needed to completely cover the oval. These images provide almost 100 pixels of information across the oval and clearly show multiple arcs of emission on the main oval and scattered emissions inside the oval. We will discuss these features, their locations, and possible interpretations. We also report on a search for an Enceladus auroral footprint on Saturn. [less ▲]

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See detailEstimating the costs of collective treatment of wastewater : the case of Walloon Region (Belgium)
Dogot, Thomas ULg; Xanthoulis, Y.; Fonder, N. et al

Conference (2009)

Detailed reference viewed: 15 (1 ULg)
Peer Reviewed
See detailBody dermatitis in a donkey caused by the Psoroptes ovis
Mignon, Bernard ULg; Lekimme, Mireille ULg; Huynen, K. et al

Conference (2009)

Detailed reference viewed: 53 (10 ULg)
Peer Reviewed
See detailThe CORALS project: simulated Cosmic Radiations and Alternative Splicing.
Lambert, Charles ULg; Battout, S.; Van Oostveldt, P. et al

Conference (2009)

Detailed reference viewed: 8 (0 ULg)
Peer Reviewed
See detailNovel micro-CT based local strain mapping tool to characterize the failure modes of bone tissue engineering scaffolds
Kerckhofs, Greet ULg; Van Bael, Simon; Moesen, Maarten et al

Conference (2009)

Detailed reference viewed: 13 (1 ULg)
Peer Reviewed
See detailDe meisje heeft de boek niet gelezen, maar wel het krant. Genus in het Nederlands van anderstaligen
Rasier, Laurent ULg; Hiligsmann, Philippe

Conference (2009)

Detailed reference viewed: 7 (0 ULg)
Peer Reviewed
See detailPlant defense reactions stimulated following perception of Bacillus lipopeptides
Ongena, Marc ULg; Henry, G.; Jourdan, E. et al

Conference (2009)

Detailed reference viewed: 9 (1 ULg)
See detailQuelle politique fisale internationale pour la Belgique?
Bourgeois, Marc ULg

Conference (2009)

Detailed reference viewed: 3 (0 ULg)
See detailAnalyse de bijoux mérovingiens en Belgique
Mathis, François ULg; Othmane, Guillaume; Vrielynck, Olivier

Conference (2009)

Detailed reference viewed: 13 (2 ULg)
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See detailCodes, chartes et labels de qualité : conséquences juridiques pour les entrepreneurs
Kohl, Benoît ULg

Conference (2008, December 19)

Detailed reference viewed: 23 (1 ULg)
See detailLa déontologie de l'information
Vanesse, Marc ULg

Conference (2008, December 18)

Journée de réflexion sur la déontologie de l'information avec plusieurs intervenants : un avocat pénaliste, le secrétaire général adjoint de l'Association des journalistes de Belgique, l'auteur d'une ... [more ▼]

Journée de réflexion sur la déontologie de l'information avec plusieurs intervenants : un avocat pénaliste, le secrétaire général adjoint de l'Association des journalistes de Belgique, l'auteur d'une recherche sur la caméra cachée, un journaliste d'investigation. [less ▲]

Detailed reference viewed: 22 (5 ULg)
See detailIntroduction to Fiscal Federalism in Belgium
Bourgeois, Marc ULg

Conference (2008, December 18)

Detailed reference viewed: 40 (3 ULg)
Peer Reviewed
See detailÀ l’Hôtel des Étrangers, repaire d’une bohème zutique
Saint-Amand, Denis ULg

Conference (2008, December 12)

Detailed reference viewed: 66 (4 ULg)
See detailLes mutations récentes du champ éditorial belge
Habrand, Tanguy ULg

Conference (2008, December 12)

Detailed reference viewed: 15 (2 ULg)
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See detailÀ propos d’épiclèses « trans-divines » : le cas de Zeus et d’Athéna à Cos
Paul, Stéphanie ULg

Conference (2008, December 12)

Dans l’île de Cos, Zeus et Athéna sont honorés sous cinq épiclèses différentes : Polieus/Polias, Machaneus/Machanis, Alseios/Alseia, Phatrios/Phatria et Sôter/Sôteira. L’article présente une étude des ... [more ▼]

Dans l’île de Cos, Zeus et Athéna sont honorés sous cinq épiclèses différentes : Polieus/Polias, Machaneus/Machanis, Alseios/Alseia, Phatrios/Phatria et Sôter/Sôteira. L’article présente une étude des sources épigraphiques qui nous renseignent sur ces cultes, afin de proposer une interprétation de la manière dont fonctionnent ces différentes paires de divinités au sein du panthéon de la cité. Parmi celles-ci, le culte de Zeus Polieus et d’Athéna Polias fera l’objet d’une étude particulière, car il semble y occuper une place centrale. Ce sera également l’occasion de replacer ces cultes dans le contexte historique de la cité, qui a connu un synécisme, de mettre en parallèle le cas de Cos avec ceux de Rhodes et Athènes, et de poser diverses questions qui y sont liées, comme par exemple celle des divinités « poliades ». [less ▲]

Detailed reference viewed: 26 (3 ULg)
See detailTesi Samanunga : La littérature en langue thioise dans la Principauté de Liège
Vromans, Joseph ULg

Conference (2008, December 12)

Detailed reference viewed: 36 (1 ULg)
See detailInvisible Computer for Design Activities
Safin, Stéphane ULg

Conference (2008, December 11)

Detailed reference viewed: 4 (0 ULg)
See detailDas Leben der Anderen
Hamers, Jérémy ULg

Conference (2008, December 11)

Detailed reference viewed: 21 (0 ULg)
See detailImmuno PCR : a new tool for the ultra-sensitive detection of biomolecules
Zorzi, Willy ULg; Elmoualij, Benaïssa ULg

Conference (2008, December 11)

Detailed reference viewed: 5 (0 ULg)
See detailCommunication, médiation, vulgarisation
Servais, Christine ULg

Conference (2008, December 11)

Detailed reference viewed: 50 (11 ULg)
Full Text
See detailApproche physiopathologique du nouveau-né et de l'enfant en soins intensifs
Battisti, Oreste ULg

Conference (2008, December 10)

Detailed reference viewed: 44 (9 ULg)
See detailParliamentary TA Institutions as Indications of Reflexive Modernization
Delvenne, Pierre ULg

Conference (2008, December 10)

Detailed reference viewed: 8 (0 ULg)
See detailPoint de vue de la SBAR
Brichant, Jean-François ULg

Conference (2008, December 06)

Detailed reference viewed: 10 (0 ULg)
See detailInsuffisance rénale chronique : "Epidemiology of CVRF"
Krzesinski, Jean-Marie ULg

Conference (2008, December 05)

Detailed reference viewed: 5 (0 ULg)
Peer Reviewed
See detailLes stratégies juridiques des entreprises en Europe
Petit, Nicolas ULg

Conference (2008, December 05)

Detailed reference viewed: 10 (2 ULg)
Peer Reviewed
See detailLa base de données du CIEL
Dozo, Björn-Olav ULg; Vanderpelen, Cécile

Conference (2008, December 04)

Detailed reference viewed: 7 (1 ULg)
See detailLe management cohérent de l'entreprise coopérative
Mertens de Wilmars, Sybille ULg

Conference (2008, December 04)

Detailed reference viewed: 14 (3 ULg)
See detailTiO2 mesoporous thin films acting as photoelectrode in dye-sensitized solar cells
Dewalque, Jennifer ULg; Cloots, Rudi ULg; Henrist, Catherine ULg

Conference (2008, December 03)

This study aims at developing thin films of nanocrystalline, mesostructured titanium dioxide in order to build low cost and efficient photovoltaic devices. The synthesis is based on the Evaporation ... [more ▼]

This study aims at developing thin films of nanocrystalline, mesostructured titanium dioxide in order to build low cost and efficient photovoltaic devices. The synthesis is based on the Evaporation Induced-Self Assembly method using titanium isopropoxide as inorganic source, block copolymers as structuring and porogeneous agents and ethanol as solvent. The films were obtained by dip-coating various substrates in the solution. The influence of different experimental parameters, such as dip-coating and ageing relative humidity, withdrawal speed, surfactant:Ti ratio, substrate, was studied. The post-deposition thermal treatment had to be accurately adjusted in order to maximise the crystallisation of the inorganic network while avoiding the collapse of the porous mesostructure. The final structure obtained is discussed in the light of the XRD results combined with TEM analysis. Moreover the cell performance is limited by the film thickness which is mainly responsible of the small amount of absorbed light. Therefore a multilayer deposition process was studied and the as-obtained mesostructure was characterized by TEM, RBS and environmental ellipsometry. [less ▲]

Detailed reference viewed: 20 (3 ULg)
See detailHypertension artérielle et alimentation
Krzesinski, Jean-Marie ULg

Conference (2008, December 02)

Detailed reference viewed: 9 (3 ULg)
See detailThe variation of different components of Jupiter's auroral emission
Nichols, J.; Clarke, J.; Gérard, Jean-Claude ULg et al

Conference (2008, December 01)

In this paper we use the extensive HST data set obtained over two month-long campaigns in 2007 to determine the long term variability of the different components of Jupiter's auroras. We define three ... [more ▼]

In this paper we use the extensive HST data set obtained over two month-long campaigns in 2007 to determine the long term variability of the different components of Jupiter's auroras. We define three regions on the planet's disc, i.e. the main oval, the low latitude, and high latitude auroras, and extract the UV auroral power emitted therefrom. The high latitude region was also further divided into the polar inner and polar outer regions. We discuss the temporal variation of these parameters with reference to the auroral morphology and estimated solar wind conditions projected to Jupiter's orbit from data obtained at Earth orbit. We show that the auroral morphology was very different between the first and second campaigns. In the first campaign the emitted power originated mainly from the main oval and the high latitude regions, which roughly correlated, and exhibited enhancements that are suggested to be associated with compression regions. In the second campaign the high latitude and main oval auroras were generally dimmer overall and less variable, while the low latitude region was populated with bright, patchy emission. We show that a particular auroral morphology is probably associated specifically with compression regions, i.e. over longitudes greater than approx. 180 degrees the main oval is bright and located approx. 1 degree poleward of its previous location, while over smaller longitudes the main oval is not bright or well defined. Instead there is bright emission originating from the contiguous poleward region in the afternoon/dusk sector where bright, sometimes multiple arcs form. It remains unclear, however, whether this state is a response to the initial shock or some other event within the rapidly-varying compression regions. We also show that the dawn storm events, typically associated with intense dawn side main oval auroras also result in the brightening of the high latitude auroras, even to the very highest latitude components, which presumably map to a very different region of the magnetosphere. However, apart from the dawn storms and bright poleward arcs in the afternoon/dusk sector, the power emitted from the poleward auroras is generally uncorrelated with that of the main oval. [less ▲]

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See detailL'audit social. Evaluez les risques sociaux de votre entreprise !
Robert, Frédéric; Maréchal, Benoît ULg

Conference (2008, December 01)

This seminar introduce to the practice of the social audit with regard to compagnies. On basis of a list of social risks with regard to labour law and social security law, the Authors illustrated how ... [more ▼]

This seminar introduce to the practice of the social audit with regard to compagnies. On basis of a list of social risks with regard to labour law and social security law, the Authors illustrated how these risks could be examined and evaluated in the case of a social audit of the company. [less ▲]

Detailed reference viewed: 164 (4 ULg)
Peer Reviewed
See detailIntérêt de l'évaluation de l'efficacité d'une prise en charge
Adam, Stéphane ULg

Conference (2008, December 01)

Detailed reference viewed: 8 (0 ULg)
See detailRecent results from HST and ground-based observations of Saturn's aurora
Grodent, Denis ULg; Stallard, T.; Gérard, Jean-Claude ULg et al

Conference (2008, December 01)

Current observations of Saturn's aurora performed from Earth-orbit with HST and ground based instruments more than complement the in situ measurements obtained by the Cassini spacecraft. These remote ... [more ▼]

Current observations of Saturn's aurora performed from Earth-orbit with HST and ground based instruments more than complement the in situ measurements obtained by the Cassini spacecraft. These remote observations focus on two spectral windows revealing different facets of the same auroral phenomenon. The auroral photons captured in the ultraviolet bandwidth result from direct impact excitation of H and H2 by charged particles accelerated along magnetic field lines, while the thermal infrared emission involves additional steps in order to produce hot H3+ from the auroral energy. Each spectral window presents its own advantages. The high spatial and temporal resolution of the recent UV images obtained with HST make it possible to discriminate auroral sub-structures, such as short lived arcs and spots, and to map them into the magnetosphere where they can be associated with in situ observations. Infrared high resolution spectroscopy and emission-line imaging from ground observatories (IRTF, UKIRT) have more modest spatial resolution; however they recently pinned down emissions barely observed in the UV. Furthermore, they offer a direct measurement of the ion wind velocities in the auroral ionosphere. These ion flow patterns might then be used to untangle the origin of the auroral particles. The complementarity of observations obtained in the UV and IR bandwidths provides a powerful tool to study the auroral mechanisms in the Kronian magnetosphere and the atmospheric response to the auroral input. [less ▲]

Detailed reference viewed: 17 (7 ULg)
See detailThe Ultraviolet Spectrograph (UVS) on Juno
Gladstone, G. R.; Persyn, S.; Eterno, J. et al

Conference (2008, December 01)

Juno, a NASA New Frontiers mission, plans for launch in August 2011, a 5-year cruise (including a flyby of Earth in October 2013 for a gravity boost), and 14 months around Jupiter after arriving in August ... [more ▼]

Juno, a NASA New Frontiers mission, plans for launch in August 2011, a 5-year cruise (including a flyby of Earth in October 2013 for a gravity boost), and 14 months around Jupiter after arriving in August 2016. The spinning (2 RPM), solar-powered Juno will study Jupiter from a highly elliptical orbit, in which the spacecraft (for about 6 hours once every 11 days) dives down over the north pole, skims the outermost atmosphere, and rises back up over the south pole. This orbit allows Juno avoid most of the intense particle radiation surrounding the planet and provides an excellent platform for investigating Jupiter's polar magnetosphere. Part of the exploration of Jupiter's polar magnetosphere will involve remote sensing of the far-ultraviolet H and H2 auroral emissions, plus gases such as methane and acetylene which add their absorption signature to the H2 emissions. This hydrocarbon absorption can be used to estimate the energy of the precipitating electrons; since more energetic electrons penetrate deeper into the atmosphere and the UV emissions they produce will show more absorption. Juno will carry an Ultraviolet Spectrograph (UVS) to make spectral images of Jupiter's aurora. UVS is a UV imaging spectrograph sensitive to both extreme and far ultraviolet emissions in the 70-205~nm range that will characterize the morphology and spectral nature of Jupiter's auroral emissions. Juno UVS consists of two separate sections: a dedicated telescope/spectrograph assembly and a vault electronics box. The telescope/spectrograph assembly contains a telescope which feeds a 0.15-m Rowland circle spectrograph. The telescope has an input aperture 40à 40~mm2 and uses an off-axis parabolic primary mirror. A flat scan mirror situated at the front end of the telescope (used to target specific auroral features at up to ±30° perpendicular to the Juno spin plane) directs incoming light to the primary. The light is then focused onto the spectrograph entrance slit, which has a 'dog- bone' shape 6° long, in three 2° sections of 0.2°, 0.05°, and 0.2° width (projected onto the sky). Light entering the slit is dispersed by a toroidal grating which focuses the UV bandpass onto a curved microchannel plate (MCP) cross delay line (XDL) detector with a solar blind UV- sensitive CsI photocathode, which makes up the instrument's focal plane. Tantalum shielding surrounds the detector assembly to protect the detector and the adjacent detector electronics from high-energy electrons. The main electronics box is located in the Juno vault. Inside are two redundant high-voltage power supplies (HVPS), two redundant low-voltage power supplies, the command and data handling (C&DH) electronics, heater/actuator activation electronics, scan mirror electronics, and event processing electronics. An overview of the UVS design and scientific performance will be presented. [less ▲]

Detailed reference viewed: 119 (8 ULg)
Peer Reviewed
See detailNeutral Ion Coupling Explorer satellite measurements of thermospheric composition, winds and temperatures.
Mende, S. B.; Immel, T. J.; England, S. et al

Conference (2008, December 01)

A new Small Explorer mission, the Neutral Ion Coupling Explorer (NICE) mission, was selected for study by NASA to specifically address neutral ion coupling in the Earth's atmosphere. The main goal of NICE ... [more ▼]

A new Small Explorer mission, the Neutral Ion Coupling Explorer (NICE) mission, was selected for study by NASA to specifically address neutral ion coupling in the Earth's atmosphere. The main goal of NICE is to study neutral-ion coupling at low latitudes where the densest plasma in geospace is created and where a number of remarkable interactions between the plasma and neutral gas occur even in the relative absence of high-latitude forcing. NICE will study this region from a ~24 degree inclination 550 km circular orbit, residing entirely on closed magnetic field lines. The relatively fast precession of low-inclination orbit is favorable for frequent sampling of all local times for the determination of tidal structures. It is now widely recognized that the neutral thermosphere has a strong influence on the ionosphere and that Earth's ionosphere at quiet times is actually tidally dominated. The NICE concept is unique in simultaneously providing measurements of the parameters relevant to ion production and motion across the entire altitude range of the low-latitude ionosphere. The science payload consists of 3 remote sensing instruments viewing the atmospheric limb (1) a dual Doppler Fabry-Perot Interferometer (FP), scanning in altitude to measure neutral wind vector and temperature altitude profiles in the E- and F-regions, (2) a Far Ultraviolet (FUV) imager to measure daytime neutral composition and image the nighttime F-layer intensity distributions, and (3) an Extreme Ultraviolet (EUV) altitude profiler to retrieve daytime F-layer properties. In addition, an Ion Velocity Meter (IVM) measures the in-situ ion drifts. NICE will take advantage of an elegant choice of orbit and instrument viewing geometries to make coordinated and complementary observations at all local times, with optimal conjunction of measurements occurring near the equator. The observations are accompanied by a suite of advanced numerical models and analysis techniques. [less ▲]

Detailed reference viewed: 80 (7 ULg)
Peer Reviewed
See detailElaboration of Magnetic Nanodots by Nanosphere Lithography : a Computerized Method for Order Quantification
Colson, Pierre ULg; Cloots, Rudi ULg; Henrist, Catherine ULg

Conference (2008, December 01)

Nanosphere lithography (NSL) is an ideal inexpensive fabrication tool for producing regular, nearly homogenous arrays of nanoparticules with different sizes. There are many different methods for the ... [more ▼]

Nanosphere lithography (NSL) is an ideal inexpensive fabrication tool for producing regular, nearly homogenous arrays of nanoparticules with different sizes. There are many different methods for the fabrication of the latex monolayer based on electrophoresis, the controlled evaporation of a solvent from the suspension containing latex particles, spincoating etc… We focused our work on this last method. The main problem with formation of 2D latex monolayers is that there are always a high number of different structural defects such as: point defects (vacancies), line defects (dislocations) and also many disordered areas. The influence of the different spincoating parameters on the amount of defects was determined by image analysis of SEM micrographies from the different samples. FePt and Co films were deposited onto quartz substrates through the polystryrene monolayers by magnetron sputtering. The nanopsheres were removed by sonication in toluene. Post-deposition annealing treatment was performed under reductive atmosphere for the FePt nanodots in order to transform the as-deposited chemically disoredered face-centered cubic (fcc) structure into the chemically ordered face-centered tetragonal (fct) phase (L10-phase). DRX , SEM and MFM analysis were performed on the different samples. [less ▲]

Detailed reference viewed: 25 (2 ULg)