References of "Scientific congresses and symposiums"
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See detailConvergent evolution for sound production with a putative slow muscle in a Perciform fish Glaucosoma buergeri (Glaucosomatidae)
Mok, Hin-Kiu; Tsai, Kai-En; Chiu, Pai-Ho et al

Conference (2010)

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See detailModeling of InSAR displacements related with the January 2002 eruption of Nyiragongo volcano
Wauthier, Christelle ULg; Cayol, Valérie; Kervyn, François et al

in ECGS Blue Books (2010)

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See detailDistinct pathological signatures after lethal avian H5N1 and swine H1N1 influenza infections suggest variable pathogenesis.
Garigliany, Mutien-Marie ULg; Habyarimana, Jean Belt Adélite ULg; Van de Paar, Els et al

in International Journal of Infectious Diseases (2010)

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See detailFirst man in the eastern Finland : an Early Mesolithic inland site with a red-ochre grave in Joensuu Rahakangas
Pesonen, Petro; Hertell, Esa; Nyholm, Mikael et al

Poster (2010)

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See detailSeasonal variation in the essential oil composition of Artemisia herba alba, Growing in Eastern Morocco
Imelouane, B.; El Bachiri, A.; Wathelet, Jean-Paul ULg et al

Poster (2010)

The seasonal and even the number of hours that enable plants to be exposed to sunlight, may influence the phytochemistry of the plant since some compounds may be accumulated at a particular period to ... [more ▼]

The seasonal and even the number of hours that enable plants to be exposed to sunlight, may influence the phytochemistry of the plant since some compounds may be accumulated at a particular period to respond to environmental changes. Objectifs The seasonal variation of the essential oil extracted from the aerial parts of Artemisia herba alba growing in eastern Morocco (Taforalt) has been studied. [less ▲]

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See detailA validation process for CFD use in building physics.
Barbason, Mathieu ULg; van Moeseke, Geoffrey; Reiter, Sigrid ULg

in Proceedings of the 7th conference on Indoor Air Quality, Ventilation and Energy Conservation in buildings (2010)

Due to growing interests in environmental and building energy performance concerns, building physics simulations - and especially Computational Fluid Dynamics (CFD) – are more and more used. Unfortunately ... [more ▼]

Due to growing interests in environmental and building energy performance concerns, building physics simulations - and especially Computational Fluid Dynamics (CFD) – are more and more used. Unfortunately, until now, there is no clearly defined method to validate the use of these models by building engineers. This paper describes a validation process of CFD tools dealing with physical phenomena occurring in building physics. The comparison between experimental data and numerical results proves the validity of CFD use and its specific contribution to building physics modelling in comparison with thermal multizonal models. Thanks to this validation process, building engineers can improve their CFD simulations performance and their comprehension of building physics. [less ▲]

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See detailWeignhing risk factors associated with bee colony collapse disorder by classification and regression tree analysis
Vanengelsdorp, D.; Speybroeck, N.; Evans, J. et al

Poster (2010)

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See detailWorking Group 3 Infrared interferometry at Dome C
Coudé Du Foresto; Surdej, Jean ULg

in Spinoglio, L.; Epchtein, N. (Eds.) ies 3rd ARENA Conference: An Astronomical Observatory at CONCORDIA (Dome C, Antarctica) (2010)

The goal of the working group was to define and realize a pre-feasibility study of an Antarctic interferometer dedicated to the characterization of exozodis with the sensitivity required (30 zodis 5 Ï ... [more ▼]

The goal of the working group was to define and realize a pre-feasibility study of an Antarctic interferometer dedicated to the characterization of exozodis with the sensitivity required (30 zodis 5 Ï detection) to discriminate sources suitable for future exoearth spectroscopic analysis. The engineering study was carried out at AMOS, based on a concept by Thalès Alenia Space derived from the GENIE instrument studied for ESA. Particular emphasis was put on the compatibility with Concordia logistic and operational constraints, for which input was provided by IPEV through long visits by a system engineer student, Xavier Daudigeos. The preliminary results are encouraging enough so that we recommend to move forward with a proposal for full industrial feasibility study that could be submitted to FP7 and/or to ESA. [less ▲]

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See detailTowards a Definition for Zero Impact Buildings
Attia, Shady ULg; De Herde, André

in Sustainable Buildings CIB 2010 (2010)

There have been several attempts to define zero impact or near zero impact buildings. Most of these are based on measuring performance or on metric benchmarks regarding the quantity or quality of the ... [more ▼]

There have been several attempts to define zero impact or near zero impact buildings. Most of these are based on measuring performance or on metric benchmarks regarding the quantity or quality of the various resources employed during a building’s life cycle. However, the problem underlying these efforts is that the resources are measured independent of each other, leading to restrictive overall design approaches. Most existing definitions focus on breaking even with a single resource, such as energy, water or materials, during the building’s life cycle. In fact, the building community needs to set a collective definition for what constitutes a zero ecological impact building, conflating all the resources involved. In this paper, we discuss this deficiency and suggest a shift in thinking necessary to define zero impact buildings. The resulting definition allows us to examine broader criteria including land management, carbon neutrality, energy neutrality, water efficiency and material neutrality. This paper reviews existing definitions or perspectives on zero impact buildings in order to redefine a more comprehensive definition of zero impact. [less ▲]

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See detail"Giant Planets Aurorae" - Europlanet RI Science Case in the Working Packages
Rucker, M Scherf H O; Blanc, M.; André, N. et al

Conference (2010)

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See detailEstimation of tidal boundary conditions and surface winds by assimilation of high-frequency radar surface currents in the German Bight
Barth, Alexander ULg; Alvera Azcarate, Aïda ULg; Gurgel, Klaus-Werner et al

Conference (2010)

Numerical ocean models are affected by errors of various origins: errors in the initial conditions, boundary conditions and atmospheric forcings, uncertainties in the turbulence parametrization and ... [more ▼]

Numerical ocean models are affected by errors of various origins: errors in the initial conditions, boundary conditions and atmospheric forcings, uncertainties in the turbulence parametrization and discretization errors. In data assimilation, observations are used to reduce the uncertainty in the model solution. Ensemble-based assimilation schemes are often implemented such that the expected error of the model solution is minimized. It is shown that the observations can also be used to obtain improved estimates of the, in general, poorly known boundary conditions and atmospheric forcings. An ensemble smoother scheme is presented to assimilate high-frequency (HF) radar surface currents to improve tidal boundary conditions and wind forcings of a circulation model of the German Bight. To create an ensemble of dynamically realistic tidal boundary conditions, a cost function is formulated which is directly related to the probability of each perturbation. This cost function ensures that the perturbations are spatially smooth and that the structure of the perturbations satisfies approximately the harmonic linearized shallow water equations. Based on those perturbations an ensemble simulation is carried out using the full three-dimensional General Estuarine Ocean Model (GETM). Optimized boundary values are obtained using all observations within the assimilation period using the covariances of the ensemble simulation. The approach acts like a smoother scheme since past and future observations are taken into account. The final analysis is obtained by rerunning the model using the optimal perturbation of the boundary conditions. The analyzed model solution satisfies thus the model equations exactly and does not suffer from spurious adjustments often observed with sequential assimilation schemes. Model results are also compared to independent tide gauge data. The assimilation also reduces the model error compared to those sea level observations. The same scheme is also used to correct surface winds. Surface winds are crucial for accurately modeling the marine circulation in coastal waters. The method is validated directly by comparing the analyzed wind speed to in situ measurements and indirectly by assessing the impact of the corrected winds on sea surface temperature (SST) relative to satellite SST. [less ▲]

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See detailLes impôts sur les revenus
Bourgeois, Marc ULg

Conference (2010)

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See detailSubordinate clause boundaries and word order in Latin: the contribution of the L.A.S.L.A. syntactic parser project LatSynt
Longrée, Dominique ULg; Philippart de Foy, Caroline ULg; Purnelle, Gérald ULg

in Kienpointner, Manfred; Anreiter, Peter (Eds.) Proceedings of the 15th International Colloquium on Latin Linguistics (2010)

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See detailloads hungry and masses too big: measure nouns on the move?
Declerck, Bernard; Brems, Lieselotte ULg

Conference (2010)

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See detailTotal Error Concept in Validation of Viral Activity in Cell Cultures
Gibein, N.; Rozet, Eric ULg

Conference (2010)

Due to the high variability inherent of experimental recipients, validating biological methods is often a complex exercise, and following ICH Q2R1 recommendations is not always feasible and/or meaningful ... [more ▼]

Due to the high variability inherent of experimental recipients, validating biological methods is often a complex exercise, and following ICH Q2R1 recommendations is not always feasible and/or meaningful. Linking systematic error and random error to obtain a unique criterion, as defined in ISO guideline, could be of interest to capture the total variability in biological assays. In this paper, the use of Total Error concept in the validation of biological assays was for the first time investigated and compared to a conventional interpretation of the ICH guideline. Both decision methodologies concluded that the assaywas valid from 2.13 to 5.83 log10(CCID50/ml). However, only the Total Error approach using accuracy profile as decision tool allowed to guarantee that accurate and reliable results will be obtained during the future routine application of the assay. In addition, the risk to obtain out of acceptance limits results was estimated using this approach and was found out to be at the most 3.1% irrespective of the concentration level, thus demonstrating the reliability of the biological assay. [less ▲]

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See detailThe role of first-line hospitals: needs and challenges in changing environment.
Porignon, Denis ULg; Holder, Renato

Conference (2010)

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See detailEvaluation of oscillometric devices for detection of hypotension in anaesthetized dogs.
Gommeren, Kris ULg; Peyron, Clémence ULg; Lacoste-Garanger, Nicolas ULg et al

in Proceedings of the 9th EVECCS Annual meeting (2010)

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See detailBubble: a Javascript engine level countermeasure against heap-spraying attacks
Gadaleta, Francesco ULg; Younan, Yves; Joosen, Wouter et al

in Bubble: a Javascript engine level countermeasure against heap-spraying attacks (2010)

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See detailTrends of CO2, CH4 and N2O over 1985-2010 from high-resolution FTIR solar observations at the Jungfraujoch station
Duchatelet, Pierre ULg; Mahieu, Emmanuel ULg; Zander, Rodolphe ULg et al

in Geophysical Research Abstracts (2010), 12(EGU2010-15418-2),

Two state-of-the-art Fourier Transform Infrared (FTIR) spectrometers are operated at the Jungfraujoch station (46.5ºN, 8.0ºE, 3580m asl) within the framework of the Network for the Detection of ... [more ▼]

Two state-of-the-art Fourier Transform Infrared (FTIR) spectrometers are operated at the Jungfraujoch station (46.5ºN, 8.0ºE, 3580m asl) within the framework of the Network for the Detection of Atmospheric Composition Change (NDACC, visit http://www.ndacc.org). The earliest FTIR observations have been obtained there in 1984. Since then, regular recordings of high-resolution solar absorption spectra have been performed at that site, under clear-sky conditions, allowing to collect almost 29000 observations relevant to the present communication. We present time series of three greenhouse gases targeted by the Kyoto Protocol: CO2, CH4 (and its isotopologue 13CH4) and N2O. These data sets have been obtained with the SFIT-2 algorithm which implements the Optimal Estimation Method of Rodgers (1990). This allows retrieving total columns of the target gases as well as information on their distribution with altitude. For the methane isotopologues and N2O, a Tikhonov L1 regularization scheme has been applied, as part of an harmonization effort carried out within the European HYMN project (see also Dils et al, 2010; Foster et al., 2010). Trends –and their associated uncertainties– characterizing these long series as well as the seasonal modulations have been determined with a statistical tool using bootstrap resampling (Gardiner et al., 2008). Trend values will be presented and critically discussed; in particular, we will investigate if significant changes in the rate of accumulations of these four atmospheric gases occurred over the last 25 years. Numerous additional greenhouse gases are accessible to the FTIR technique. Examples of such trend studies are reported at the EGU General Assembly by Mahieu et al. (2010) and Rinsland et al. (2010). [less ▲]

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See detailSpatio-temporal patterns of preys and wastes moved by ants within the nests
Diez, Lise; Lejeune, Philippe ULg; Deneubourg, Jean-Louis et al

Poster (2010)

Living in society in a restricted and confined nest implies important organisational issues. Ants have to control food supply for the whole colony as well as nest defence but they also have to manage ... [more ▼]

Living in society in a restricted and confined nest implies important organisational issues. Ants have to control food supply for the whole colony as well as nest defence but they also have to manage everyday life tasks such as waste rejection. Within the nest, ants are faced with different items that have to be used or rejected regarding colony needs. We study whether they can discriminate between three types of items (building material, nestmate cadaver or prey) and accordingly adapt the spatio-temporal distribution of these items. Therefore, we used colonies of the ant Myrmica rubra settled in a 2-dimensional space and introduced different items in the nest centre. We show that each item triggers a specific cascade of behaviour. We observed important differences in rejection time: building items were removed within a few minutes and cadavers after a few hours while preys could be kept in the nest for a day or more. Furthermore, the movement of items by ants leads to specific spatio-temporal patterns. Building items were removed with a straight trajectory from the centre to the exit of the nest. Ant cadavers that could bear pathogens showed a trajectory avoiding and moving away from larvae that are potentially more sensitive to diseases. The moving of preys headed an oscillating pattern: these items were alternatively taken on larvae for consumption and then moved away from them, until final rejection. This specific pattern may be due to the coupled effects of groups of ants acting alternatively to feed larvae and reject waste. In the case of cadavers and building items, only undertaking ants may be active. These results suggest that each ant is able to discriminate and interact with each other leading at the collective level to a complex cascade of behaviour. [less ▲]

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See detailThe effects of sleep deprivation on the attentional networks: an event-related functional magnetic resonance imaging (fMRI) study
Muto, Vincenzo ULg; Shaffii, A; Matarazzo, L et al

in Journal of Sleep Research (2010), 19(s2),

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See detailLa théorisation des littératures de la francophonie Nord : retour sur deux changements de paradigme
Provenzano, François ULg

in Bainbrigge, Susan; Charnley, Joy; Verdier, Caroline (Eds.) Francographies : identité et altérité dans les espaces francophones européens (2010)

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See detailThe ratio of PTH as measured by third and second generation assays as a marker for parathyroid carcinoma
Cavalier, Etienne ULg; Daly, Adrian ULg; Chapelle, Jean-Paul ULg et al

in 12th European Congress of Endocrinology - ICE 2010 (2010)

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See detailReforming the Common Agricultural Policy perspective of 2013 and beyond
Burny, Philippe ULg

in Advances in Agriculture & Botanics (2010), 2(2), 175-186

This paper deals first with the history of the Common Agricultural Policy, its goals, principles and tools. In the second part, it deals with the future : what are the main topics which are discussed and ... [more ▼]

This paper deals first with the history of the Common Agricultural Policy, its goals, principles and tools. In the second part, it deals with the future : what are the main topics which are discussed and could define the guidelines of the CAP after 2013 ? The evolution of the CAP is permanent and is following the evolution of European society in general. Its goals and tools are adapted to European citizens ' expectations about agriculture. The future is never certain, but the main items which will influence the future are presented below. [less ▲]

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See detailBaryon to meson transition distribution amplitudes and their spectral representation
Pire, Bernard; Semenov-Tyan-Shanskiy, Kirill ULg; Szymanowski, Lech

in AIP Conference Proceedings (2010), 1350

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See detailDifferences in carbohydrate composition of barley varieties influence Salmonella transmission among pen mate weaned piglets
Bindelle, Jérôme ULg; Pieper, Robert; Marshall, Jason et al

in Journal of Animal Science (2010), 88(E2), 284

Indigestible carbohydrate (CHO) composition can vary markedly between barley varieties. They induce changes in intestinal ecophysiology and enhance growth of health-promoting bacteria. An experiment was ... [more ▼]

Indigestible carbohydrate (CHO) composition can vary markedly between barley varieties. They induce changes in intestinal ecophysiology and enhance growth of health-promoting bacteria. An experiment was undertaken to assess whether these changes could influence Salmonella typhimurium (ST) infection in pigs and transmission between penmates. A challenge study was undertaken using 84 recently weaned piglets divided in 12 pens, and fed one of the 4 experimental diets (3 pens/diet), according to the barley variety. Three hullless and one hulled varieties were chosen according to their differing CHO composition (amylose/amylopectin, β-glucan, and insoluble non-starch polysaccharides). After 14 d of adaptation, 2 pigs per pen (Trojan pigs, TrojP) were orally infected (8.0 log cfu/animal) with a low virulent, nalidixic acid and novobiocin resistant ST strain. The other animals were considered as Contact pigs (ConP) to assess ST transmission. Over 5 d following inoculation, pigs were monitored for detection of ST in the feces using plate counts. On d 6, 2 TrojP and 2 ConP per group were killed and intestinal samples as well as organ samples (liver, spleen, and lymph nodes) were analyzed for ST. The results showed that in TrojP, the cereal variety had no influence on ST fecal shedding over time and gastrointestinal tract (GIT) colonization. All pigs were positively tested for ST. Translocation of ST to lymph nodes was observed frequently but not to other organs. In ConP, compared with hulled barley, hulless barleys reduced the number of animals shedding ST (P < 0.05 for d 2) and the number of ST (cfu/g) in cecum on d 6 (P < 0.01). Although hulless barleys did not protect against colonization when directly challenged at a high oral dose, these barleys may be useful to reduce natural ST transmission among penmates. [less ▲]

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See detailMeasurement of liquid hold-up in catalytic structured packings: comparison of different experimental techniques
Viva, Aurora ULg; Aferka, Saïd ULg; Toye, Dominique ULg et al

in de Haan, A. B.; Kooijman, H.; Gorak, A. (Eds.) Proceedings of 9th Distillation and Absorption Conference (DA2010), Eindhoven, Pays-Bas, 12-15 septembre 2010 (2010)

This paper presents the results of an experimental study carried out to examine liquid hold-up in 100 mm diameter catalytic structured packing Katapak-SP. Two versions of the packing have been ... [more ▼]

This paper presents the results of an experimental study carried out to examine liquid hold-up in 100 mm diameter catalytic structured packing Katapak-SP. Two versions of the packing have been investigated. Both global and local measurements were carried out on the very same packings, using water at ambient conditions as working liquid. To this scope, traditional methods like draining techniques were used to obtain global hold-up values. A non-intrusive high energy X-ray tomography was used for gathering information on local scale and study axial distribution of the liquid hold-up over the packed column, inside and outside the catalyst containing baskets. The total liquid hold-up of the catalytic packed bed was evaluated by averaging hold-up values obtained at different cross sections over the corresponding volume. Very good agreement was found between global values estimated with the different techniques. The experimental results are useful for supporting theoretical developments in hydrodynamic and mass transfer modeling. [less ▲]

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See detailLe cycle de Guillaume d’Orange ou les Aliscans rajeunis
Henrard, Nadine ULg

in Cazanave, Caroline; Houssais, Yvon (Eds.) Grands textes du Moyen Âge à l'usage des petits (2010)

Examen d'une douzaine de versions de récritures de la geste de Guillaume d'Orange parues entre 1905 et 1995 et destinées à la jeunesse

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See detailPenitence, Motherhood and Passion Devotion: Contextualising Anne of Brittany's Prayer Book, Chicago, Newberry Library, MS 83
L'Estrange, Elizabeth ULg

in Brown, Cynthia (Ed.) The Cultural and Political Legacy of Anne de Bretagne: Negotiating Convention in Books and Documents (2010)

Anne of Brittany’s prayer book, conserved in the Newberry Library in Chicago, has been somewhat neglected in discussions of Anne’s manuscripts. This may be because it has been eclipsed by those other, far ... [more ▼]

Anne of Brittany’s prayer book, conserved in the Newberry Library in Chicago, has been somewhat neglected in discussions of Anne’s manuscripts. This may be because it has been eclipsed by those other, far more luxurious and illustrated manuscripts owned by Anne, such as the Grandes Heures. However, the devotional themes of this small book, which dates from Anne’s second marriage, to Louis XII, reveal many of Anne’s interests as duchess of Brittany and queen of France. In particular the inclusion of a series of indulgences, an emphasis on St Anne, St Margaret, and St Louis, and a prayer said for the successful delivery of Clothilde, suggest that the prayer book was designed to articulate Anne’s place in the history of French monarchs, as well as her need to provide an heir for both the duchy of Brittany and the kingdom of France. This article seeks to place the little-known Newberry manuscript and its unusual contents in the context of what we already know of Anne’s devotional interests and the events of her life. Whereas previous scholarship on the manuscript, by Kamerick (Manuscripta, 1995) and L’Estrange (Holy Motherhood, 2008), has focused on the indulgences and childbearing aspects respectively, this article will bring these themes together, suggesting how the manuscript functioned as a whole, articulating a series of Breton and Capetian-Valois devotional legacies that were available to Anne as duchess and queen. Particular attention will be paid to the manuscript’s three miniatures, the illumination of David that opens the manuscript and the Penitential Psalms, and the two illuminations of Christ’s Passion. [less ▲]

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See detailAnalyser les relations hyperconflictuelles entre groupes sociaux : des organisations au domaine politique
Faulx, Daniel ULg; Danse, Cédric ULg

in Piet, Grégory; Wintgens, Sophie (Eds.) Analyse des conflits et leur résolution (2010)

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See detailIntermittent thermal manipulations of broiler embryos during late incubation and their immediate and long-lasting effects
Willemsen, Hilke; Li, Yue; Witters, Anouck et al

Conference (2010)

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See detailTesting for one-sided alternatives in nonparametric censored curve comparison
Heuchenne, Cédric ULg; Pardo Fernandez, Juan-Carlos

in Proceedings of the 28th European Meeting of Statisticians. (2010)

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See detailInjury characteristics and risk factors in young soccer players
Frisch, Anne ULg; Croisier, Jean-Louis ULg; Windal, T. et al

in Knee Surgery, Sports Traumatology, Arthroscopy (2010), 18(Suppl 1), 58

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See detailEvaluation et proposition de révision du deuxième Programme de Gestion Durable de l'Azote en agriculture en Région wallonne (Belgique)
Vandenberghe, Christophe ULg; Benoit, Jérémie ULg; Deneufbourg, Mathieu ULg et al

in Marcoen, Jean Marie; Vandenberghe, Christophe (Eds.) Actes de l'Atelier "Nitrate - Eau" 2 au 5 juin 2009. Peyresq, France (2010)

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See detailQuantitative Microtexture Analysis of Carbonate Rocks Using Bireflectance Imaging
Jaimes Contreras, Rafael Antonio ULg; Pilawski, Dimitri; Califice, Arnaud ULg et al

in Proceedings IAMG 2010 (2010)

Microtextural analysis of rocks has been addressed by several authors as an essential means to better understand the natural genesis of the material. But, it is also of paramount importance to those who ... [more ▼]

Microtextural analysis of rocks has been addressed by several authors as an essential means to better understand the natural genesis of the material. But, it is also of paramount importance to those who try to predict the geotechnical or industrial behaviour of a rock under many forms of solicitation (mechanical, thermal, etc.). Quantitative modal (phase) analysis using point counting has already been discussed in depth by authors such as Chayes more than fifty years ago. Nowadays, automated image analysis with millions of pixels is easily available and improves statistical accuracy provided the classification step is correctly performed. Spitefully the assignment of a pixel to a given mineral phase or to a given crystal is often poorly satisfactory and remains the bottleneck of a fully automated textural analysis. Methods using a manual rotation of a polarizer in transmitted light microscopy have been developed by Starkey and Samantaray (1993) and further automated and improved by Fueten (1997). These allow to better delineate individual crystals in a thin section due to contrast in birefringence. In this paper a similar technique using multiple orientations of a polarizer in reflected light microscopy has been used to contrast individual crystals in carbonated rocks. The maximum and minimum grey levels registered for each pixel allow for computing a bireflectance image whose variance is a good indicator of the misalignment of cristallographical orientations in the section. Moreover, the maximum of the reflectance gradient obtained for each orientation generates a good image of the grain boundaries and the presence of pores. This last one is quantitatively analysed using the intercept method to estimate the mean and variance of the grain size distribution. The paper presents a quantitative comparison of several different microtextures. [less ▲]

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See detailNew Parameters and Analytical Challenges for Milk Recording by Fourier-Transform Mid-Infrared Spectrometry (FTMIR)
Soyeurt, Hélène ULg

in Proceedings of the ICAR 37th Annual Meeting (2010)

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See detailMonopole, externalisation, territorialisation : quels acteurs de la sécurité en Europe ?
Rambault, Philippe; Matos Tavares, Jorge; Profiroiu, Marius et al

in Pauliat, Hélène (Ed.) La sécurité intérieure en Europe : entre protection des citoyens et frénésie sécuritaire ? (2010)

Compte-rendu de la table ronde sur le sujet organisée lors du colloque tenu à Limoges en novembre 2008.

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See detailSleep-dependent consolidation of declarative memories is triggered by hippocampal activation at encoding
Collette, Fabienne ULg; Rauchs, Géraldine; Feyers, Dorothée ULg et al

in Proceedings of the Annual Meeting of th Belgian Association for Psychological Science (2010)

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See detailOptimized Remeshing for Incremental Forming Simulation
Rabahallah, François ULg; Bouffioux, Chantal ULg; Duchene, Laurent ULg et al

in Proceedings of the Advances in Materials and Processing Technologies Conference (2010)

This work presents an advanced numerical methodology which aims to improve the simulations of incremental forming processes [3]. A specific numerical treatment is required to optimize the remeshing ... [more ▼]

This work presents an advanced numerical methodology which aims to improve the simulations of incremental forming processes [3]. A specific numerical treatment is required to optimize the remeshing procedure, in order to decrease the simulation CPU time and deals with the strong process nonlinearities. The algorithm remeshing procedure is implemented in the Lagamine FE code [2] developed at the University of Liège. An elastoplastic law is combined with an isotropic kinematic hardening model. The identification procedure for the material parameters determination takes into account a set of mechanical tests (inverse approach). Numerical simulations of the forming of a pyramid part with two wall angles are performed in order to address the robustness of the implementation and the ability of this numerical methodology to predict the force values. Comparisons between measured and predicted force values are performed. [less ▲]

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See detailOrganic farming in Wallonia : situation and perspectives
Burny, Philippe ULg

Conference (2010)

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See detailA STUDY OF THE CORRELATION BETWEEN MACROTEXTURE AND THE TIRE/PAVEMENT CLOSE PROXIMITY NOISE
Luong, Jeanne ULg; Bueno, M.; Teran, F. et al

Poster (2010)

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See detailAssessment methodology of the intradermal tuberculosis skin test performed in cattle by field practitioners
Humblet, Marie-France ULg; Walravens, K.; Salandre, O. et al

Poster (2010)

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See detailTool use and site function in the European Middle Palaeolithic
Rots, Veerle ULg

Conference (2010)

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See detailExperimental study of the hydraulic behavior of piano key weirs
Machiels, Olivier ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Proc. 17th Congress of the Asia and Pacific Division of the International Association of Hydro-Environment Engineering and Research (2010)

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See detailMacaronesia: a source of hidden genetic diversity for post-glacial recolonization of western Europe in the leafy liverwort Radula lindenbergiana.
Laenen, Benjamin ULg; Desamore, Aurélie ULg; Devos, Nicolas et al

Poster (2010)

Aim Bryophytes exhibit the lowest rates of endemism among biota in Macaronesia and differ in diversity patterns from angiosperms by the widespread occurrence of endemics within and among archipelagos. In ... [more ▼]

Aim Bryophytes exhibit the lowest rates of endemism among biota in Macaronesia and differ in diversity patterns from angiosperms by the widespread occurrence of endemics within and among archipelagos. In this study, we test the hypothesis that high dispersal ability erodes phylogeographic signal and hampers the chances of diversification in bryophytes using the leafy liverwort Radula lindenbergiana as a model. Location Macaronesia, Europe, South Africa Methods 84 samples were collected across the species distribution range and sequenced at four cpDNA loci (atpB-rbcL, trnG, trnL, and rps4). Phylogenetic reconstructions and Bayesian ancestral area reconstructions were used in combination with population genetic statistics (H, Nst, Fst) to describe the pattern of present genetic diversity in R. lindenbergiana and infer its biogeographic history. Results The two regions with the highest haplotypic diversity are Madeira and the Canary Islands. Ancestral area reconstructions suggest that Macaronesia was colonized at least twice independently and that the haplotypes currently found in Western Europe share a Macaronesian common ancestor. Whilst analysis of molecular variance and Nst statistics indicate that present-day patterns of genetic variation have a globally significant biogeographic component, Fst values among Macaronesian archipelagos, North Africa, and the Iberian Peninsula, were not significant. Main conclusions The apparent lack of speciation amongst Macaronesian bryophytes hides actual patterns of diversification at the molecular level. The occurrence of Canarian endemic haplotypes across several islands, along with the non-significant Fst and Nst among islands, North Africa and the Iberian Peninsula, suggest intense dispersal. The occurrence of endemic haplotypes suggests, however, that dispersal does not completely prevent diversification. The high diversity found among Macaronesian haplotypes, together with the Macaronesian origin of all the haplotypes found in Western Europe, suggests that Macaronesian archipelagos could have served as a refugium during the Quaternary glaciations and as a source for re-colonization of Europe. [less ▲]

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See detailMise en relation de l'évolution de l'agriculture et de la qualité de l'eau entre 1950 et 2000
Vandenberghe, Christophe ULg

in Vandenberghe, Christophe; Marcoen, Jean Marie (Eds.) Atelier "Nitrate - Eau". 2 au 5 juin 2009. Peyresq, France (2010)

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See detailConservación de germoplasma de tarwi (Lupinus mutabilis Sweet) en Cusco
Cosio, Pompeyo; Blanco, Maywa; Baudoin, Jean-Pierre ULg

in Primer Congreso Peruano de Mejoramiento Genético y Biotecnologia Agricola (2010)

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See detailModeling post-combustion CO2 capture with amine solvents
Léonard, Grégoire ULg; Heyen, Georges ULg

Poster (2010)

In order to avoid the emission of large amounts of greenhouse gas, CO2 capture in fossil fuel power plants and subsequent underground CO2 sequestration is studied. The capture occurs by reactive CO2 ... [more ▼]

In order to avoid the emission of large amounts of greenhouse gas, CO2 capture in fossil fuel power plants and subsequent underground CO2 sequestration is studied. The capture occurs by reactive CO2 absorption into chemical solvent systems at moderate temperature (~50°C) followed by solvent regeneration at higher temperature (~120°C). So far, the most employed solvent for acid gas capture is monoethanolamine (MEA). One main drawback of this technology is the high energy consumption necessary to regenerate the solvent. In the present work, the CO2 capture process with MEA is modeled using the simulation tool Aspen Plus®. The base case process is optimized and some process improvements are studied that imply a significant decrease of the process exergy consumption. [less ▲]

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See detailGradual changes in the sensitivity to the stimulant and sedative effects of ethanol during adolescence in Swiss mice
Quoilin, Caroline ULg; Didone, Vincent ULg; Quertemont, Etienne ULg

in Alcoholism, Clinical & Experimental Research (2010), 34(8), 97-97

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See detailBrain aromatase activity and male sexual behavior
Balthazart, Jacques ULg; Cornil, Charlotte ULg; Charlier, Thierry ULg et al

in Annales d'Endocrinologie (2010), 71

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See detailIntegrating collective work aspects in the design process: An analysis case study of the robotic surgery. Using communication as a sign of fundamental change
Nyssen, Anne-Sophie ULg; Blavier, Adelaïde ULg

in Palanque, Philippe; Vanderdonck; Winckler (Eds.) Human Error, Safety and System Development (2010)

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See detailFlora and plant communities of the city of Bujumbura (Burundi): diversity, origin and conservation value.
Bigirimana, J; Bogaert, Jan ULg; De Cannière, C et al

in Bogaerts, A; Robbrecht, E; Rammeloo, J (Eds.) ). Botanical diversity: exploration, understanding and use (2010)

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See detailReliable hydraulic numerical modeling with multiblock grids and linked models
Erpicum, Sébastien ULg; Archambeau, Pierre ULg; Dewals, Benjamin ULg et al

in Proc. Int. Conf. SimHydro 2010: Hydraulic modeling and uncertainty (2010)

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See detailOwn song selectivity in the songbird auditory pathway: suppression by norepinephrine
Poirier, Colline; Boumans, Tiny; Vellema, Michiel et al

Poster (2010)

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See detailAdverse effects of antibiotics on activated sludge process: the erythromycin case
Louvet, Jean-Noël ULg; Attik, Ghania; Dumas, Dominique et al

Conference (2010)

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See detailEffects of brand presence and stimulus of comparison on response inhibition toward alcohol cues in male and female heavy drinkers
Kreusch, Fanny ULg; Quertemont, Etienne ULg

in 2010 annual meeting of the Belgian Association for Psychological Sciences (2010)

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See detailL'erreur totale pour le transfert de méthodes
Rozet, Eric ULg

Conference (2010)

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See detailAnalyse des structures spatiales des données de distribution phytogéographique des Acanthaceae en Afrique centrale.
Koffi, K J; Bogaert, Jan ULg

in Vololoniaina, H J; Razafimandimbison, S G; De Block, P (Eds.) XIXth AETFAT Congress- Madagascar, 25-30 april, 2010 (2010)

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See detailOcytocine plamsatique et dimensions de personnalité dans la dépression unipolaire
Scantamburlo, Gabrielle ULg; Reggers, Jean; Hansenne, Michel ULg et al

in Encéphale (L') (2010), 36

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See detailMaterial data identification to model the single point incremental forming process
Bouffioux, Chantal ULg; Pouteau, P.; Duchene, Laurent ULg et al

in International Journal of Material Forming (2010), 3(Suppl. 1), 979-982

In this study, the Single Point Incremental Forming process (SPIF) is applied on a specific aluminium alloy used in the aerospace industry since this technique and material combine a low specific weight ... [more ▼]

In this study, the Single Point Incremental Forming process (SPIF) is applied on a specific aluminium alloy used in the aerospace industry since this technique and material combine a low specific weight, high strength and stiffness properties and high strain levels. To be able to optimize the process, a model and its material parameters are required. It was noticed that a simple isotropic hardening model was not sufficient to provide an accurate tool force prediction [1]. Therefore an elasto-plastic law with a mixed isotropic-kinematic hardening is investigated. The inverse method coupled with the Finite Element (FE) code: "Lagamine" [2] is used to fit the material data of this complex law. In order to validate the model and the material data, a Line test and a Cone test are used. [less ▲]

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See detailA time-dependent damage law in solids: a homogenization approach
Dascalu, Cristian; François, Bertrand ULg

in 9th HSTAM International Congress on Mechanics (2010)

The theoretical developments and the numerical applications of a time-dependent damage law is presented. This law is deduced from considerations at the micro-scale where non-planar growth of micro-cracks ... [more ▼]

The theoretical developments and the numerical applications of a time-dependent damage law is presented. This law is deduced from considerations at the micro-scale where non-planar growth of micro-cracks, following a subcritical propagation criterion, is assumed. The passage from micro-scale to macro-scale is done through an asymptotic homogenization approach. The model is built in two steps. First, the effective coefficients are calculated at the micro-scale in finite periodical cells, with respect to the micro-cracks length and their orientation. Then, a subcritical damage law is developed in order to establish the evolution of damage. As shown by numerical simulations, the developed model enables to reproduce the long-term behavior encountering relaxation and creep effects. [less ▲]

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See detailDu Mars gallicus aux Inconvéniens d’Estat :naissance du jansénisme entre religion et politique
Vanhoorne, Frédérick ULg

in Baustert, Raymond (Ed.) Le jansénisme et l'Europe : actes du colloque international organisé à l'Université de Luxembourg, les 8, 9 et 10 novembre 2007 (2010)

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See detailAssessing structure potential in soil and water conservation: monitoring top soil hydrology from micro to field scale.
Kummert, Nora ULg; Beckers, Eléonore ULg; Roisin, Christian et al

in Wollesen de Jonge, Lis; Moldrup, Per; Lindblad Vendelboe, Anders (Eds.) 1st international conference and exploratory workshop on soil architecture and physico-chemical functions "CESAR" (2010)

Soil structure is a key parameter influencing erosion and water transfers. This paper describes an experiment that covers different aspects of soil structure. Three tillage systems are tested: reduced ... [more ▼]

Soil structure is a key parameter influencing erosion and water transfers. This paper describes an experiment that covers different aspects of soil structure. Three tillage systems are tested: reduced tillage, and two ploughing systems. At micro-scale, analyses are tomography which study images to determine porosity characteristics (connectivity, size, number…) and pF curves where total available water and effective porosity are deducted. At field scale, soil losses and runoff are collected and measured after rainfall simulation on plots for the different tillage systems. The comparison of the results for both scales shows the links between phenomenons at those scales. [less ▲]

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See detailAffective valence and false memoires in Aging
Dehon, Hedwige ULg; laroi, Frank; van der Linden, Martial

Conference (2010)

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See detailLa coocurrence, une relation asymétrique ?
Longrée, Dominique ULg; Luong, Xuan; Brunet, Etienne et al

in Bolasco, Sergio (Ed.) Proceedings of the JADT 2010, 10th International Conference on the Statistical Analysis of Textual Data, Rome, 9-11 June 2010 (2010)

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See detailDevelopment of upland cotton plants highly resistant to the reniform nematode from the G. Hirsutum x G. Thurberi x G. Longicalyx hybrid
Mergeai, Guy ULg; Konan, N.O; Baudoin, Jean-Pierre ULg

in Proceedings of the beltwide cotton improvement conference (2010)

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See detailAnts’ survival and waste management in Myrmica rubra nests
Diez, Lise; Lejeune, Philippe ULg; Detrain, Claire

Poster (2010)

Sociality increases risks of disease transmission as genetically related individuals live in a confined environment. Therefore, social insects developed specific defences against pathogens by showing ... [more ▼]

Sociality increases risks of disease transmission as genetically related individuals live in a confined environment. Therefore, social insects developed specific defences against pathogens by showing hygienic behaviours such as the rejection of cadavers and other wastes. We investigated if the undertaking and waste management is actually an efficient way of increasing ants’ survival and of limiting pathogens transmission. First, we observed the survival curve of ant colonies that were prevented from rejecting their dead nestmates outside the nest. Colonies that were forced to keep their dead inside the nest showed increased mortality of both adults and larvae in comparison to control nests, confirming that undertaking is an effective way for improving colony’s survival. Then, we compared the rejection dynamics of single waste items (ant cadavers, preys and clay pellet) introduced into ant nests. Clay pellets were quickly rejected within 12 ± 4 minutes, cadavers were dumped outside after 139 ± 28 min and preys were eaten and rejected only after 17.3 ± 0.3 hours. Spatial localisation inside the nest also differs between different items, as most cadavers stayed far from ants’ aggregate and larvae while preys were long-eaten close to larvae and inside ants’ aggregate. These results show that cadavers and preys are managed differently before becoming contagious, thus preventing effectively pathogens transmission inside the nest. [less ▲]

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See detailEffects of L-carnitine administration on hatchability and blood parameters of broiler and layer chicks
Tona, Kokou; Nouboukpo, E.; Kamers, B. et al

Poster (2010)

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See detailThe SignSpeak Project -- Bridging the Gap Between Signers and Speakers
Dreuw, Philippe; Ney, Hermann; Martínez Ruiz, Gregorio et al

in 7th International Conference on Language Resources and Evaluation (2010)

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See detailL'assurance obligatoire des architectes et la jurisprudence de la Cour constitutionnelle. Vers une réforme de l'assurance en droit de la construction?
Kohl, Benoît ULg

in Durant, I.; de Briey, R. (Eds.) L'exercice de la profession d'architecte (2010)

Le débat sur l’assurance dans le secteur de la construction s’est trouvé sérieusement relancé à la suite de l’arrêt prononcé par la Cour constitutionnelle le 12 juillet 2007 . Cette décision constitue la ... [more ▼]

Le débat sur l’assurance dans le secteur de la construction s’est trouvé sérieusement relancé à la suite de l’arrêt prononcé par la Cour constitutionnelle le 12 juillet 2007 . Cette décision constitue la toile de fond de toute réflexion, non seulement quant au caractère – obligatoire ou facultatif – de l’assurance dans ce secteur, mais également quant aux contours que ce régime devrait adopter. Certaines initiatives ont du reste été déjà entreprises pour donner corps à un réforme du régime actuel ; une proposition de loi « relative à l’assurance responsabilité professionnelle des entrepreneurs de travaux immobiliers » vient ainsi d’être déposée très récemment au Sénat . La présente contribution fait le point sur cette question sensible. Après une analyse de l’arrêt du 12 juillet 2007, l'étude dégage les enseignements de cette décision du point de vue du devenir de l’assurance dans le secteur de la construction en droit belge. Enfin, quelques propositions pour une réforme du régime actuel sont formulées, et sont illustrées par un bref examen comparatif de la situation existant dans d’autres Etats membres de l’Union Européenne. [less ▲]

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See detailPerformance monitoring of an industrial boiler: classification of relevant variables with Random Forests
Sainlez, Matthieu ULg; Heyen, Georges ULg

in Pierucci, Sauro; Ferraris, Guido Buzzi (Eds.) 20th European Symposium on Computer Aided Process Engineering – ESCAPE20 (2010)

A data mining methodology, the random forests, is applied to analyze pollutant emission from the recovery boiler of a Kraft pulping process. Starting from a large database of raw process data, the goal is ... [more ▼]

A data mining methodology, the random forests, is applied to analyze pollutant emission from the recovery boiler of a Kraft pulping process. Starting from a large database of raw process data, the goal is to identify the input variables that explain the most output variations. [less ▲]

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See detailRole of wild animals in epidemiology of paratuberculosis
Linden, Annick ULg

in Paratuberculosis of ruminants (2010)

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See detailLes taggers, auxiliaires heuristiques en ADT
Longrée, Dominique ULg; Mellet, Sylvie; Poudat, Céline

in Bolasco, Sergio (Ed.) Proceedings of the JADT 2010, 10th International Conference on the Statistical Analysis of Textual Data, Rome, 9-11 June 2010 (2010)

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