References of "2009"
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See detailHigh quality meshing based on harmonic mappings for biomedical simulation
Remacle, J.-F.; Marchandise, E.; Willemet, M. et al

in Proceedings of the 1st International Conference on Mathematical and Computational Biomedical Engineering (CMBE2009) (2009)

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See detailLipofibromatous hamartoma of the median nerve. Three case reports.
Nardella, D; Sohawon, S; CARLIER, Alain ULg

in Journal of Plastic, Reconstructive and Aesthetic Surgery (2009), 62(9), 314-7

Nervous lipofibromatous hamartoma is a rare tumour-like condition involving the peripheral nerves, whereby the epineurium and perineurium are enlarged and distorted by excess fatty and fibrous tissues ... [more ▼]

Nervous lipofibromatous hamartoma is a rare tumour-like condition involving the peripheral nerves, whereby the epineurium and perineurium are enlarged and distorted by excess fatty and fibrous tissues that infiltrate between and around nerve boundaries. The median nerve is much more likely than other nerves to develop a hamartoma with a predilection for the carpal tunnel. In this article, we describe three cases of lipofibromatous hamartoma of the median nerve and discuss its management. [less ▲]

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See detailStudying chemical activation in carbon xerogels
Zubizaretta, Leire; Arenillas, Ana; Pis, Jose Juan et al

in Journal of Materials Science (2009), 44

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See detailDielectric Multilayer Films Fabricated by Magnetron Sputtering: How Far Can the Iridescence Be Tuned?
Deparis, Olivier; Rassart, Marie; Vandenbem, Cedric et al

in Plasma Processes and Polymers (2009), 6

Periodic dielectric multilayer structures can generate interferential colours from optically transparent basic materials. Their iridescence property, i.e. the change of colour with the illumination or ... [more ▼]

Periodic dielectric multilayer structures can generate interferential colours from optically transparent basic materials. Their iridescence property, i.e. the change of colour with the illumination or viewing angle, is exploited in the industry to produce structurally coloured coatings and paints. Magnetron sputtering is an efficient technique for producing multilayer films owing to its ability to deposit films on large surfaces with excellent uniformity and reproducibility in both the film thickness and composition. Based on a theoretical model of the optical response, we investigated the iridescence tuning range of the technologically important SiO2/TiO2 material system. Radically different iridescent behaviours were predicted theoretically and demonstrated experimentally by selecting appropriate combinations of period and layer thickness ratio. [less ▲]

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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 ▲]

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See detailReconciling opposing views on carbon cycling in the coastal ocean: continental shelves as sinks and near-shore ecosystems as sources of atmospheric CO2
Chen, C. T. A.; Borges, Alberto ULg

in Deep-Sea Research Part II, Topical Studies in Oceanography (2009), 56(8-10), 578-590

Despite their moderately-sized surface area, continental marginal seas play a significant role in the biogeochemical cycles of carbon, as they receive huge amounts of upwelled and riverine inputs of ... [more ▼]

Despite their moderately-sized surface area, continental marginal seas play a significant role in the biogeochemical cycles of carbon, as they receive huge amounts of upwelled and riverine inputs of carbon and nutrients, sustaining a disproportionate large biological activity compared to their relative surface area. A synthesis of worldwide measurements of the partial pressure of CO2 (pCO2) indicates that most open shelves in the temperate and high latitude regions are under-saturated with respect to atmospheric CO2 during all seasons, although the low latitude shelves seem to be over-saturated. Most inner estuaries and near-shore coastal areas on the other hand are over-saturated with respect to atmospheric CO2. The scaling of air-sea CO2 fluxes based on pCO2 measurements and carbon mass balance calculations indicate that the continental shelves absorb atmospheric CO2 ranging between 0.33 to 0.36 Pg C yr-1 that corresponds to an additional sink of 27% to ~30% of the CO2 uptake by the open oceans based on the most recent pCO2 climatology (Takahashi et al., 2008; Deep-Sea Research II, this issue). Inner estuaries, salt marshes and mangroves emit up to 0.50 Pg C yr-1, although these estimates are prone to large uncertainty due to poorly constrained ecosystem surface area estimates. Nevertheless, the view of continental shelves as sinks and near-shore ecosystems as sources of atmospheric CO2 allows reconciling long-lived opposing views on carbon cycling in the coastal ocean. [less ▲]

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See detailProbability Density Estimation by Perturbing and Combining Tree Structured Markov Networks
Ammar, Sourour; Leray, Philippe; Defourny, Boris ULg et al

in Proc. of ECSQARU '09: 10th European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (2009)

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See detailSir Stirling Moss
Donnay, Jean-Paul ULg

Article for general public (2009)

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See detailEffect of partial or total replacement of forage fish by a dry diet on the quality of reproduction in pikeperch, Sander lucioperca
Wang, Neil; Mandiki, S. N. M.; Henrotte, Emilie et al

in Aquaculture Research (2009), 40(3), 376-383

The aim of this preliminary study was to evaluate the influence of different feeding regimes on the quality of reproduction in pikeperch. Three diets were tested: forage fish (FF), a commercial dry feed ... [more ▼]

The aim of this preliminary study was to evaluate the influence of different feeding regimes on the quality of reproduction in pikeperch. Three diets were tested: forage fish (FF), a commercial dry feed (DD) and a mix of both (FD). The diets were given to fish throughout a complete reproductive cycle. During the spawning season, couples were injected with human chorionic gonadotropin (hCG) and let to spawn on nests. Proportion of running males, spawning and hatching success and larval quality (weight, length, body protein, total lipid, fatty acid and lipid class compositions and resistances to osmotic shock and starvation stress tests at hatching) were evaluated. The proportion of running male was lower in the DD group than in the FF and FD groups (54% for DD against 76-89% for FF and FD). In addition, 25%, 62.5% and 75% of injected couples gave spawning that hatched in DD, FF and FD groups respectively. Larval quality parameters were not significantly different between treatments. The results indicate that overall quality of reproduction was higher in FF and FD treatments than in DD. It suggests that the dry feed used was not totally adequate for pikeperch reproduction. Relations between breeder reproductive performances and the feed compositions are discussed. [less ▲]

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See detailAttacks by a piercing-sucking insect (Myzus persicae Sultzer) or a chewing insect (Leptinotarsa decemlineata Say) on potato plants (Solanum tuberosum L.) induce differential changes in volatile compound release and oxylipin synthesis
Gosset, Virginie; Harmel, Nicolas; Goebel, Cornelia et al

in Journal of Experimental Botany (2009), 60(4), 1231-1240

Plant defensive strategies bring into play blends of compounds dependent on the type of attacker and coming from different synthesis pathways. Interest in the field is mainly focused on volatile organic ... [more ▼]

Plant defensive strategies bring into play blends of compounds dependent on the type of attacker and coming from different synthesis pathways. Interest in the field is mainly focused on volatile organic compounds (VOCs) and jasmonic acid (JA). By contrast, little is known about the oxidized polyunsaturated fatty acids (PUFAs), such as PUFA-hydroperoxides, PUFA-hydroxides, or PUFA-ketones. PUFA-hydroperoxides and their derivatives might be involved in stress response and show antimicrobial activities. Hydroperoxides are also precursors of JA and some volatile compounds. In this paper, the differential biochemical response of a plant against insects with distinct feeding behaviours is characterized not only in terms of VOC signature and JA profile but also in terms of their precursors synthesized through the lipoxygenase (LOX)-pathway at the early stage of the plant response. For this purpose, two leading pests of potato with distinct feeding behaviours were used: the Colorado Potato Beetle (Leptinotarsa decemlineata Say), a chewing herbivore, and the Green Peach Aphid (Myzus persicae Sulzer), a piercing-sucking insect. The volatile signatures identified clearly differ in function with the feeding behaviour of the attacker and the aphid, which causes the smaller damages, triggers the emission of a higher number of volatiles. In addition, 9-LOX products, which are usually associated with defence against pathogens, were exclusively activated by aphid attack. Furthermore, a correlation between volatiles and JA accumulation and the evolution of their precursors was determined. Finally, the role of the insect itself on the plant response after insect infestation was highlighted. [less ▲]

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See detailEvaluations of cognitive, linguistic and mnemonic competencies of people with Down’s syndrome; An integrative conception of mental retardation
Frenkel, Stéphanie ULg

in Journal of Cognitive Education and Psychology (2009), 8(2), 214-215

Thesis summary

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See detailEntre prose, vers et image. Ambivalence du message politique dans les Chroniques de Louis XII de Jean d’Auton
Dumont, Jonathan ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (2009), 2

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See detailÉcrire (d')après. Sur la littérature "au second degré" et ses critiques
Saint-Amand, Denis ULg

in COnTEXTES : Revue de Sociologie de la Littérature (2009)

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See detailFrançois Coppée ou les inimitiés électives
Saint-Amand, Denis ULg

in COnTEXTES : Revue de Sociologie de la Littérature (2009)

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See detailLong Term Stability Of Metal Oxide-Based Gas Sensors For E-nose Environmental Applications: an overview
Romain, Anne-Claude ULg; Nicolas, Jacques ULg

in Pardo, Matteo; Sberveglieri, Giorgio (Eds.) OLFACTION AND ELECTRONIC NOSE: Proceedings of the 13th International Symposium on Olfaction and Electronic Nose (2009)

The e-nose technology has enormous potentialities for in site monitoring of malodors. However a number of limitations are associated with the properties of chemical sensors, the performances of the signal ... [more ▼]

The e-nose technology has enormous potentialities for in site monitoring of malodors. However a number of limitations are associated with the properties of chemical sensors, the performances of the signal processing and the realistic operation conditions of environmental field. From the experience of the research group in the field, the metal oxide based gas sensors (Figaro type) are until now the best chemical sensors for long term application, more than one year of continuous working in the field. To be usable for malodors measurement in the field, the e-nose has to deal with the lack of long term stability of these sensors. The drift and the sensors replacement have to be considered. In order to appraise the time evolution of the sensors and the effect on the results of an electronic nose, experimentation has been performed during three years on two identical sensor arrays. The two arrays contain the same six Figaro sensors and are in the same sensor chamber of the e-nose system. Both arrays have worked continuously during three years without break. [less ▲]

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See detailMultiple mode analysis of the self-excited vibrations of rotary drilling systems
Germay, Christophe; Denoël, Vincent ULg; Detournay, Emmanuel

in Journal of Sound & Vibration (2009), 325(1-2), 362-381

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See detailSurface functionalization of germanium ATR devices for use in FTIR-biosensors
Devouge, S.; Conti, J.; Goldsztein, A. et al

in Journal of Colloid & Interface Science (2009), 332(2), 408-415

Biosensors based on intrinsic detection methods have attracted growing interest. The use of Fourier transform infra-red (FTIR) spectroscopy with the attenuated internal total reflection (ATR) mode, in the ... [more ▼]

Biosensors based on intrinsic detection methods have attracted growing interest. The use of Fourier transform infra-red (FTIR) spectroscopy with the attenuated internal total reflection (ATR) mode, in the biodetection context, requires appropriate surface functionalization of the ATR optical element. Here, we report the direct grafting of a thin organic layer (about 20 angstrom depth) on the surface of a germanium crystal. This covering, constructed with novel amphiphilic molecules 2b (namely, 2,5,8,11,14,17,20-heptaoxadocosan-22-yl-3-(triethoxysilyl) propylcarbamate), is stable for several hours under phosphate buffered saline (PBS) flux and features protein-repulsive properties. Photografting of molecule 5 (namely, O-succinimidyl 4-(p-azidophenyl)butanoate) affords the activated ATR element, ready for the covalent fixation of receptors, penicillin recognizing proteins BlaR-CrD for instance. The different steps of the previous construction have been monitored by water contact angle (theta(w)) measurements, spectroscopic ellipsometry (covering depth), X-ray photoelectron spectroscopy (XPS) by using a fluorinated tag for the control of surface reactivity, and FTIR-ATR spectroscopy for the structural analysis of grafted molecules. Indeed, contrarily to silicon device, germanium device offers a broad spectral window (1000-4000 cm(-1)) and thus amide I and II absorption bands can be recorded. This work lays the foundations for the construction of novel FTIR biosensors. (c) 2008 Elsevier Inc. All rights reserved. [less ▲]

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See detailLimit analysis of the statistics of quasi-steady non-linear aerodynamic forces for small turbulence intensities
Denoël, Vincent ULg

in Probabilistic Engineering Mechanics (2009), 24(4), 552-564

This paper focuses on the estimation of statistical characteristics of a specific quasi-steady wind loading used in buffeting analyses. In this loading, the intrinsic non-linearity of aerodynamic ... [more ▼]

This paper focuses on the estimation of statistical characteristics of a specific quasi-steady wind loading used in buffeting analyses. In this loading, the intrinsic non-linearity of aerodynamic coefficients is considered and approached by a polynomial expression of any a priori chosen degree. As rigorous developments of the statistical moments would result in impractical formulations, we suggest to consider the smallness of the turbulence intensities to construct, by means of a limit analysis, approximate expressions of the raw moments of aerodynamic forces. From these expressions, approximate cumulants and associated dimensionless characteristics, such as skewness and excess coefficients, are derived. The accuracy of the proposed analytical relations is assessed by comparison with Monte Carlo simulations, and the relevance of the sophisticated non-linear loading under consideration is compared to more traditional models. [less ▲]

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See detailHMTY-KM (Black Copper) and the egyptian bronzes collection of the Musee du Louvre
Mathis, François ULg; Delange, Elisabeth; Robcis, Dominique et al

in Journal of Cultural Heritage (2009), 10

At the instigation of the Musée du Louvre’s Department of Egyptian Antiquities, an intensive programme to study black bronze has been carried out at the Centre de Recherche et de Restauration des Muse´es ... [more ▼]

At the instigation of the Musée du Louvre’s Department of Egyptian Antiquities, an intensive programme to study black bronze has been carried out at the Centre de Recherche et de Restauration des Muse´es de France. Systematic research has been undertaken on the museum’s collection to identify objects that might have an intentional black patina. The same experimental protocol has been applied to all the objects, alllowing this study to be one of the most important coherent investigation on this type of bronze decoration. It involves the use of non-invasive analytical methods in order to obtain the maximum amount of information possible about the chemical nature and structure of the surface layer. The protocol makes it possible to compare objects and to propose an interpretation of how this decorative technique evolved during the Egyptian period. Based on previous stylistic investigations (by J. Cooney, 1966) and personal observation, sixteen objects dating from the Middle Kingdom to the Late Period were selected. Thanks to elemental analyses, twelve of them were identified as being intentionally patinated. Only ten of these could be described as hmty-km, because the base patinated alloy contains small amounts of gold and/or silver and the black patina is made up mainly of cuprous oxide Cu2O (cuprite). Among the four other objects, one patina is very close to the black bronze patina, but contains neither gold nor silver. Three other pieces have an unusual patina. A lack of other comparable examples makes it very difficult to determine whether the patinas are of ancient origin. [less ▲]

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