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See detailDiversité des relations sol plantes dans les écosystèmes extrémophiles et implications pour la restauration : le cas des végétations cupricoles du Katanga, RDC.
Seleck, Maxime ULg; Lebrun, Julie ULg; Guillaume, Arielle ULg et al

Conference (2010, March 31)

Les collines de cuivre et de cobalt du Katanga (RDC) sont des milieux isolés présentant des substrats hautement toxiques (>10.000 ppm cuivre, gradients très marqués). De ce fait, ces gisements hébergent ... [more ▼]

Les collines de cuivre et de cobalt du Katanga (RDC) sont des milieux isolés présentant des substrats hautement toxiques (>10.000 ppm cuivre, gradients très marqués). De ce fait, ces gisements hébergent des communautés végétales originales, avec une diversité d’espèces métallophytes spécialisées, en relation étroite avec la concentration en métaux du sol. La récente reprise des activités minières dans la région menace grandement ces écosystèmes. La restauration de ces communautés végétales nécessite une compréhension fine des relations entretenues avec leur environnement édaphique et la caractérisation de la diversité intra et inter sites de ces communautés. Trois gisements ont fait l’objet d’une étude détaillée sur base d’un échantillonnage systématique en fonction du gradient à priori d’ETM. Dans des placette de 1m², un échantillon composite de sols a été prélevé à deux profondeurs : 0-15 cm et 30-45 cm et analysé pour : pH, Corg, N tot, Cu, Co, Zn, Mn, Fe, K, Mg, Ca et P biodisponibles. L’abondance des espèces présentes au sein des quadrats a été mesurée selon leur pourcentage de recouvrement. L’analyse en groupement et la mise en relation flore-sol par les méthodes de CCA indiquent que les sites présentent des conditions de sol et des végétations bien différenciées bien que les deux mêmes formations sont présentes. Les concentrations en cuivre sont un facteur explicatif important de la variation de la flore mais d’autres paramètres édaphiques s’avèrent également essentiels (Mg, Mn, K, Ca). Toutefois la sélection des paramètres édaphique expliquant la variation de la flore diffère d’un site à l’autre indiquant la grande diversité de ces écosystèmes et la nécessité de développer des approches de restauration spécifiques à chaque site. [less ▲]

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See detailOdor measurement : search for a proper analytical device
Nicolas, Jacques ULg

Conference (2010, March 30)

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See detailSelection of circadian clock models for robust entrainment: an analysis based on the phase response curve
Sacré, Pierre ULg; Hafner, Marc; Heinz, Koeppl et al

Conference (2010, March 30)

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See detailHydrodynamique souterraine et vulnérabilité à la pollution des ressources en eau en zone urbaine tropicale : cas du bassin versant de Mingoa (Yaoundé-Cameroun)
Kouam Kenmogne, Guy Romain; Ntep, François; Rosillon, Françis ULg et al

Conference (2010, March 29)

Une étude conjointe visant la compréhension des phénomènes d’hydrodynamique souterraine et de vulnérabilité des eaux à la pollution a été menée dans le bassin versant de Mingoa situé dans le périmètre ... [more ▼]

Une étude conjointe visant la compréhension des phénomènes d’hydrodynamique souterraine et de vulnérabilité des eaux à la pollution a été menée dans le bassin versant de Mingoa situé dans le périmètre urbain de Yaoundé. Il ressort de cette étude que le comportement hydrodynamique dans ce bassin est étroitement lié aux fluctuations pluviométriques. La carte hydrodynamique de l’aquifère supérieur du bassin versant de Mingoa révèle deux types d’écoulements convergents et divergents avec les grands axes de drainage d’orientation globale NE - SW ; SE - NW et N - S permettant de délimiter des sites favorables à l’implantation d’ouvrages de captage des eaux souterraines. Les sources potentielles de pollution répertoriées sont nombreuses et variées (latrines, tas d’ordures sauvages,...). Les résultats des analyses physico-chimiques ont permis de constater que hormis la température, le potentiel d’hydrogène (pH), CO2 libre et l’azote ammoniacal, les valeurs des autres paramètres sont bien centrées sur les normes de qualité des eaux destinées à la consommation humaine prescrite par l’Organisation Mondiale de la Santé (OMS). Cependant, les valeurs des teneurs en en Streptocoques Fécaux (de 48 UFC/100 ml à 5,80 x 105 UFC/100 ml) et en Coliformes Fécaux (de 300 UFC/100 ml à 1,07 x 106 UFC/100 ml) sont largement supérieures aux valeurs seuils requises par l’OMS et permettent de conclure que ces eaux sont polluées et vivement déconseillées à la consommation humaine. Sur la base des données ponctuelles issues des simulations et des différentes analyses des eaux et des sols, la dynamique de contamination des nappes d’eau superficielles et souterraines dans les zones cristallines fracturées et densément peuplées a été posée. Deux zones de protection ayant respectivement des rayons de 10 mètres et de 20 mètres peuvent être envisagées afin de permettre au sol de jouer pleinement son rôle épurateur. Des mesures adéquates (campagnes d’information, établissement des zones de protection, ...) doivent être engagées dans ce bassin versant et au-delà dans toute la ville de Yaoundé afin de faire face à la dégradation assez avancée des ressources en eau et ceci malgré des contraintes socio-économiques et foncières qui constituent des freins à cette dynamique. [less ▲]

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See detailEnjeux sanitaires, socio-économiques et environnementaux liés à la réutilisation des eaux usées dans le maraîchage urbain à Yaoundé au Cameroun : cas du bassin versant de l’Abiergué
Kouam Kenmogne, Guy Romain; Rosillon, Françis ULg; Mpakam, Hernanie Grelle et al

Conference (2010, March 28)

Le bassin versant de l’Abiergué, localisé dans le périmètre urbain de Yaoundé entre 11°05’ et 11°25’ de longitude Est et entre 3°51’ et 3°54’ de latitude Nord connaît une importante activité maraîchère ... [more ▼]

Le bassin versant de l’Abiergué, localisé dans le périmètre urbain de Yaoundé entre 11°05’ et 11°25’ de longitude Est et entre 3°51’ et 3°54’ de latitude Nord connaît une importante activité maraîchère dans les bas fonds de Nkolbikok à Nkolbisson. Une étude démarrée en 2005 dans cette unité géographique, a pour objectif principal de contribuer à la valorisation de cette activité tout en oeuvrant à la réduction des impacts négatifs induits. De nombreuses activités ont été développées suivant une approche transdisciplinaire. Les statuts socio-économiques des acteurs impliqués dans cette filière ont été décrits. Les contraintes et les atouts liés au développement du maraîchage ont été relevés. L’eau du cours d’eau Abiergué utilisée pour l’arrosage des plantes est polluée par des eaux usées et des déchets solides issus des ménages, du marché Mokolo, des centres de santé,… et présentent des teneurs non négligeables en Coliformes fécaux (5025 UFC/100ml à 3 x 106 UFC/100ml), Streptocoques fécaux (1960 UFC/100ml à 138 000 UFC/100ml) et Escherichia coli (2 à 20 germes/100ml). Des taux variables de kystes de protozoaires (Entamoeba hystolitica et Giardia sp) et des oeufs d’helminthes ont été décelés dans ces eaux. L’utilisation des eaux usées a pour corollaire l’émergence de maladies hydriques telles que l’amibiase intestinale qui affecte aussi bien les acteurs engagés dans cette filière que la population en général indépendamment du sexe, de l’âge ou du statut social. De nombreuses pratiques et de nombreux comportements à risque ont été identifiés et concourent à la propagation des maladies hydriques. Malgré les risques de maladies hydriques, cette activité contribue considérablement à l’amélioration des conditions et du cadre de vie des catégories d’acteurs engagés dans cette activité en particulier et des populations en général. Des actions économiquement viables, socialement acceptables et écologiquement durables sont préconisées afin de réduire les aspects négatifs et de consolider les aspects positifs de cette activité multifonctionnelle. [less ▲]

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See detailLes relations entre la mémoire à court terme verbale et troubles du langage.
Majerus, Steve ULg

Conference (2010, March 27)

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See detailQuels tests utiliser pour évaluer les troubles cognitifs en cancérologie?
Adam, Stéphane ULg

Conference (2010, March 26)

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See detailLa réflexivité dans l’écoute de l’environnement
Colon, Paul-Louis ULg

Conference (2010, March 26)

La communication montre, à partir de résultats d'une enquête ethnographique en cours, l'intérêt méthodologique et théorique de la notion de réflexivité pour étudier le processus de constitution de la gêne ... [more ▼]

La communication montre, à partir de résultats d'une enquête ethnographique en cours, l'intérêt méthodologique et théorique de la notion de réflexivité pour étudier le processus de constitution de la gêne dans le cas des nuisances sonores environnementales. [less ▲]

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See detailFirst experience with Architect urine NGAL
Cavalier, Etienne ULg; Delanaye, Pierre ULg

Conference (2010, March 25)

Detailed reference viewed: 33 (2 ULg)
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See detailLogical Analysis of Data and Classification
Crama, Yves ULg

Conference (2010, March 25)

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See detailSome Considerations on Political Reasoning Among Young French-speaking Belgians: Who Are Ready to Vote at 16?
Fournier, Bernard ULg

Conference (2010, March 24)

The question of lowering the voting age to 16 has long been debated in university circles. In the last Austrian elections, young people aged 16 and older were invited to vote, even if young people ... [more ▼]

The question of lowering the voting age to 16 has long been debated in university circles. In the last Austrian elections, young people aged 16 and older were invited to vote, even if young people themselves are divided over this issue, even hostile to the idea. Nevertheless, isn’t such a question, which is rarely discussed by the larger public and touches on several dimensions of a person’s life, an ideal topic for a debate, where the confrontation of ideas may change opinions and reveal – or even modify – young people’s global attitudes towards political interest and participation? A sample of one hundred 15- to 21-year-old youth in French-speaking Belgium was selected to discuss the possibility of lowering the voting age to 16, as well as political interest and political participation, during one day with four experts. The same questionnaire was filled in in the beginning and at the end of the day. These first results are presented here. They show little evolution during the discussion, in a sample already largely against the idea of lowering the voting age. However, these are the consequences for political socialisation we would like to discuss with this research project based on political reasoning. [less ▲]

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See detailEntrepreneurial mindset and institutional innovations triggered by rice parboiling video in Benin
Zossou, Enangnon ULg; Van Mele, Paul; Vodouhe, Davo Simplice et al

Conference (2010, March 24)

To improve rice parboiling in Benin, an improved parboiling process with new equipment is being released. Farmer-to-farmer video (initiated by Africa Rice Center) was used by four local NGOs in the ... [more ▼]

To improve rice parboiling in Benin, an improved parboiling process with new equipment is being released. Farmer-to-farmer video (initiated by Africa Rice Center) was used by four local NGOs in the Department of Collines to disseminate the technology. In order to explore changes that have been made in this rural area following the use of this learning approach, 160 women and 17 women’s associations were surveyed in 16 villages where the video was shown. Qualitative and quantitative data were collected using focus groups, semi-structured interviews, participant observations, questionnaires and photographs. The video had not only improved women’s creative spirit, but also their motivation and awareness about the importance of parboiling as a revenue-generating activity. Women have become organized around rice parboiling leading to the creation of associations, more appeals to NGOs for additional training in rice parboiling, improved service delivery and improved packaging and marketing of parboiled rice. Improving women’s entrepreneurial spirit contributed to improving the quality of parboiled rice and therefore to an increase in its price, which increased women’s revenues and strengthened social cohesion. The video favored not only the improvement of extension methods used by facilitators, but also the strengthening of relationships among facilitators, rural communities, women processors, microfinance institutions, and input and output markets. Women had more access to formal credit because of their improved organization. Rice producers who attended the open-air video shows at the same time as the women rice processors became more willing to sell rice on credit to the women. The results of this study have allowed us to understand how video can favor the development of institutional innovations and reinforce relationships between facilitators and rural entrepreneurs. [less ▲]

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See detailA robust antibacterial coating for stainless steel
Faure, Emilie ULg; Charlot, Aurélia; Sciannaméa, Valérie et al

Conference (2010, March 23)

Because of corrosion, chemical resistance, relevant mechanical and esthetical properties, stainless steel is widely used in the daily life, not only in the building industry but also in the food industry ... [more ▼]

Because of corrosion, chemical resistance, relevant mechanical and esthetical properties, stainless steel is widely used in the daily life, not only in the building industry but also in the food industry, the appliances or in the medical field, including implants in orthopedic surgery. However, stainless steel is unable to prevent bacteria from adhering, proliferating and forming a resistant biofilm. Therefore, surface modification is needed for providing the metal surface with antibacterial properties. The scientific literature is very rich in describing various methods for imparting antibacterial properties to different inorganic supports. However, the activity of the coating is generally time limited by the diffusion of the biocide in the environment. Novel robust and stable antibacterial coatings on stainless steel are thus highly desirable for the durability of the functionality. In this communication, we report on an all-in-one approach to prepare robust antimicrobial films on stainless steel using the layer-by-layer deposition of polyelectrolytes. Novel biocidal multilayered polyelectrolyte films in which the polycationic layer is silver loaded and bears 3,4-dihydroxyphenylalanine (DOPA), known as a promoter of adhesion to inorganic surfaces, were deposited onto stainless steel. DOPA was incorporated in the polycationic chains by radical copolymerisation of N-methacrylated DOPA with the commercially available quaternary ammonium salt of 2-(dimethylamino)ethyl methacrylate (DMAEMA+). Polystyrene sulfonate (PSS) was the polyanionic constituent of the films. In order to boost the antibacterial activity of the polycationic layer, AgNO3 was added to the aqueous solution of P(DOPA)-co-P(DMAEMA+), which resulted in the in-situ formation of silver based nanoparticles (Ag° and AgCl) that are sources of biocial Ag+. The layer-by-layer deposition of aqueous P(DOPA)-co-P(DMAEMA+)/AgCl/Ag0 suspension and aqueous solution of PSS provides stainless steel with high antibacterial activity against Gram-negative E. Coli bacteria. Moreover, after silver depletion, films retain some antimicrobial activity, thanks to the ammonium groups of the copolymer. We will also show how the antibacterial activity of the films can then be easily re-boosted. The multi-functionality of the P(DOPA)-co-P(DMAEMA+) is a key issue in this process (i) the DOPA co-units are anchored to stainless steel, (ii) these co-units reduce partly AgNO3 into Ag0 nanoparticles and stabilize them by chelation, (iii) the chloride counter-anions react with AgNO3 by ionic exchange, leading to the in situ formation of AgCl particles, and (iv) the ammonium groups are responsible for permanent antibacterial activity. Besides the advantage of the all-in-one process, another major advantage of the approach proposed here is the implementation of the whole process of film formation, including the synthesis of P(DOPA)-co-P(DMAEMA+), in aqueous media under very mild conditions. It makes the strategy very attractive for industrial scaling-up and sustainability applications. [less ▲]

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See detailPensiero giuridico ed esperienza politica nel Rinascimento italiano
Moreno, Paola ULg

Conference (2010, March 23)

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See detailRoxolid a new implant material
LAMBERT, France ULg; ROMPEN, Eric ULg

Conference (2010, March 23)

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See detailAppréhender le conflit sous l'angle de la relativisation
Grandjean, Geoffrey ULg

Conference (2010, March 23)

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See detailInsights into the metagenomic approach : identification and characterization of cellulases involved in bacterial cellulose synthesis
Berlemont, Renaud ULg; Delsaute, Maud ULg; Galleni, Moreno ULg

Conference (2010, March 22)

the mining of an Antarctic soil sample by functional metagenomics allowed the isolation of a cold-adapted protein (RBcel1) that hydrolyzes only carboxymethyl cellulose. The new enzyme is related to family ... [more ▼]

the mining of an Antarctic soil sample by functional metagenomics allowed the isolation of a cold-adapted protein (RBcel1) that hydrolyzes only carboxymethyl cellulose. The new enzyme is related to family 5 of the glycosyl hydrolase (GH5) protein from Pseudomonas stutzeri (Pst_2494) and does not possess a carbohydrate-binding domain. The protein was produced and purified to homogeneity. RBcel1 displayed an endoglucanase activity, producing cellobiose and cellotriose, using carboxymethyl cellulose as a substrate. Moreover, the study of pH and the thermal dependence of the hydrolytic activity shows that RBcel1 was active from pH 6 to pH 9 and remained significantly active when temperature decreased (18% of activity at 10 1C). It is interesting that RBcel1 was able to synthetize non-reticulated cellulose using cellobiose as a substrate. Moreover, by a combination of bioinformatics and enzyme analysis, the physiological relevance of the RBcel1 protein and its mesophilic homologous Pst_2494 protein from P. stutzeri, A1501, was established as the key enzymes involved in the production of cellulose by bacteria. In addition, RBcel1 and Pst_2494 are the two primary enzymes belonging to the GH5 family involved in this process. [less ▲]

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See detailScreening of basic properties of amphiphilic molecular structures for colloidal system formation and stability: case of carbohydrate-based surfactants
Razafindralambo, Hary ULg; Blecker, Christophe ULg; Paquot, Michel ULg

Conference (2010, March 21)

Carbohydrate-based surfactants (CBS) are amphiphilic molecules with particular interests. These surface-active compounds can be produced from the most abundant renewable materials allowing large product ... [more ▼]

Carbohydrate-based surfactants (CBS) are amphiphilic molecules with particular interests. These surface-active compounds can be produced from the most abundant renewable materials allowing large product concept possibilities. They may occur in a wide range thanks to numerous functional groups. These make possible the design of a quasi-unlimited compounds by (bio)-synthesis of new structures, or by modifying existing natural molecules. This structural diversity can generate a wide range of properties which could be developed in food and non-food applications. Our challenge is to find out the most suitable molecular structures for post)development of CBS according to the specific required properties in various industrial applications. This consists of assessing the interfacial properties of various CBS prepared by chemical, enzymatic, or chemo-enzymatic synthesis routes from the derivatives of bio-renewable materials.The effect of the polar head group, the hydrophobic chains (length, number), and the linker will be presented and discussed. [less ▲]

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See detailGlossaires pour rire ou Le lexique comme style.
Saint-Amand, Denis ULg

Conference (2010, March 20)

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See detailPlatelet-rich plasma (PRP) increases healing process of rats' Achilles tendons
Kaux, Jean-François ULg; Drion, Pierre ULg; Pascon, Frédéric ULg et al

Conference (2010, March 20)

Introduction Some tendinopathies (epicondylitis, jumper’s knee or Achilles tendinopathy) are frequently considered as rebel to “classic” treatments such as rest, orthotics, NSAIs, electrotherapy ... [more ▼]

Introduction Some tendinopathies (epicondylitis, jumper’s knee or Achilles tendinopathy) are frequently considered as rebel to “classic” treatments such as rest, orthotics, NSAIs, electrotherapy, physiotherapy, corticosteroid infiltrations, extracorporeal shock waves… Recently, several studies, essentially in vitro, demonstrated the positive effects of platelets on the healing process of different tissues: bones, muscles and tendons. Objectives The aim of our experiment was to ascertain whether the use of platelet-rich plasma (PRP) was of interest for accelerating the healing process of Achilles tendon after surgical induced lesion. Methods A 5mm defect was surgically induced in rat Achilles tendon after resection of plantaris tendon. Rats were divided into 2 groups: A: control (no injection) and B: PRP injection. Rats of group B received a PRP injection in situ after the surgery. Afterwards, rats of both groups were placed in their cage without immobilization. After 5, 15 and 30 days, rats were euthanized. The traumatized Achilles tendon of each rat was removed and dissected during this healing process. Immediately after sampling, tendons were submitted to a biomechanical tensile test up to rupture, using a “Cryo-jaw”. Results We demonstrated that the force necessary to induce tendon rupture during biomechanical tensile test study was more important for tendons which had been submitted to an injection of PRP. These results were noticed from day 5 onwards. Discussion – Conclusion This experimentation has shown that PRP injections could accelerate tendons healing process and increase the force needed to break tendons in their healing process. This “accelerating” process can be observed as early as day 5. Acknowledgement This experimentation was partially financed by “Standard de Liège 2007” and “Lejeune-Lechien 2008” grants. [less ▲]

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See detailImages dessinées/images animées. Stratégies et convergences de la firme Marvel
Tomasovic, Dick ULg

Conference (2010, March 20)

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See detailInternational Trade of Nuclear Materials and Equipment
Michel, Quentin ULg

Conference (2010, March 19)

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See detailLa Recherche à l'ULg
Cormann, Grégory ULg

Conference (2010, March 19)

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See detailWhat’s being Integrated into what (and by whom)?
Grossman, Eitan; Polis, Stéphane ULg

Conference (2010, March 18)

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See detailControl and Voting Power in Shareholding Networks
Crama, Yves ULg

Conference (2010, March 18)

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See detailEtalement urbain et services collectifs
Halleux, Jean-Marie ULg

Conference (2010, March 18)

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See detailWalt Disney, une auto-canonisation
Tomasovic, Dick ULg

Conference (2010, March 17)

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See detailL'électroencéphalographie dans l'étude de la conscience
Cologan, Victor ULg

Conference (2010, March 17)

Présentation au grand public de l'étude électrophysiologique du patient cérébrolésé, en particulier par les techniques d'électroencéphalographie.

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See detailPerturbateurs endocriniens reprotoxiques : ennemis de la fertilité chez l'Homme
Charlier, Corinne ULg

Conference (2010, March 16)

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See detailModels for Decision Making: From Applications to Mathematics... and Back
Crama, Yves ULg

Conference (2010, March 15)

In this inaugural lecture, I describe some facets of the interplay between mathematics and management science, economics, or engineering, as they come together in operations research models. I intend to ... [more ▼]

In this inaugural lecture, I describe some facets of the interplay between mathematics and management science, economics, or engineering, as they come together in operations research models. I intend to illustrate, in particular, the complex and fruitful process through which fundamental combinatorial models find applications in management science, which in turn foster the development of new and challenging mathematical questions. [less ▲]

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See detailExplaining Organizational Diversity in Fair Trade Social Enterprises
Huybrechts, Benjamin ULg

Conference (2010, March 13)

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See detailLe dialogue interreligieux au niveau local : réflexions au départ des 12 principes du Congrès des Pouvoirs Locaux et Régionaux du Conseil de l'Europe
Husson, Jean-François ULg

Conference (2010, March 12)

This paper presents the principles set by the Congress of Local and Regional Authorities of the Council of Europe on interreligious dialogue and discuss the policies and instruments of a local regulation ... [more ▼]

This paper presents the principles set by the Congress of Local and Regional Authorities of the Council of Europe on interreligious dialogue and discuss the policies and instruments of a local regulation of religions. [less ▲]

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See detailL’édition de poésie en Wallonie et à Bruxelles
Durand, Pascal ULg

Conference (2010, March 10)

Table ronde sur L'édition de poésie en Wallonie et à Bruxelles, avec Marc Imberechts (Tétras-Lyre), David Giannoni (L’Arbre à Paroles et Maelström), Pierre-Yves Soucy (Le Cormier), Karel Logist (Le Fram ... [more ▼]

Table ronde sur L'édition de poésie en Wallonie et à Bruxelles, avec Marc Imberechts (Tétras-Lyre), David Giannoni (L’Arbre à Paroles et Maelström), Pierre-Yves Soucy (Le Cormier), Karel Logist (Le Fram), Gaspard Hons (poète et chroniqueur de poésie), Pascal Leclercq (poète), Laurent Demoulin (prix Marcel Thiry 2009) et Gérald Purnelle (ULg) [less ▲]

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See detailInteraction between modal domains: The case of the Subjunctive in Late Egyptian
Polis, Stéphane ULg

Conference (2010, March 09)

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See detailVitamin D and atherosclerosis
Cavalier, Etienne ULg

Conference (2010, March 09)

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See detailCommunication acoustique chez les téléostéens
Kever, Loïc ULg; Parmentier, Eric ULg

Conference (2010, March 07)

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See detail"Woher kommt die Normativität? Die Debatte Freud - Kelsen"
Seba, Jean-Renaud ULg

Conference (2010, March 05)

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See detailLe vocabulaire culinaire comme système, la recette de cuisine comme genre. Etude linguistique du Cuisinier françois de La Varenne"
Colson, Maryse ULg

Conference (2010, March 05)

L’étude linguistique que nous proposons d’exposer – et qui fut l’objet d’un mémoire – envisage Le vocabulaire culinaire comme système et la recette de cuisine comme genre d’après un recueil de recettes ... [more ▼]

L’étude linguistique que nous proposons d’exposer – et qui fut l’objet d’un mémoire – envisage Le vocabulaire culinaire comme système et la recette de cuisine comme genre d’après un recueil de recettes datant de 1651 et intitulé Le Cuisinier françois. Partant de l’élaboration d’un lexique ne reprenant que les mots pleins, nous avons observé deux particularités. D’une part, il existe des combinaisons préférentielles entre certains verbes et leurs arguments : par exemple, le verbe émier n’accepte comme argument que le lexème (du) pain, et assaisonner sera toujours suivi d’un nom désignant une épice. D’autre part, des relations sémantiques et formelles unissent les différents verbes appartenant au domaine culinaire. Ainsi, nous avons mis en exergue des paires synonymiques : mariner et tremper (d’un ingrédient), s’enhuiler et se tourner (d’une sauce) ; des paires antonymiques : chauffer et froidir (d’une préparation), durcir et mortifier (d’une viande) ; des gradations : fondre, roussir et noircir (du beurre). Finalement, il s’avère que l’ensemble des verbes culinaires forme un système cohérent et structuré, tant d’un point de vue formel que sémantique. Mieux encore, nous pouvons réduire la recette de cuisine à une chaîne verbale qui accueille dans ses places argumentales des unités lexicales particulières, tenant compte de leur forme – de leur catégorie grammaticale, donc – et de leur sens – des sèmes qui composent leur signification. Lors de notre communication, nous dégagerons ce modèle, cette trame linguistique qui permet de définir la recette culinaire comme un genre textuel : un genre que nous étudions désormais dans notre thèse. [less ▲]

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See detailMethods for Vitamin D measurement - analytical problems and clinical relevance
Cavalier, Etienne ULg

Conference (2010, March 05)

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See detailSources d’information médicale, recherche et gestion des références
Pasleau, Françoise ULg

Conference (2010, March 05)

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See detailLaboratoire et allergologie : nouvelles applications
Gadisseur, Romy ULg; Cavalier, Etienne ULg

Conference (2010, March 02)

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See detailEtude du comportement aéroélastique des structures soumises à des écoulements décrochés
Andrianne, Thomas ULg; Dimitriadis, Grigorios ULg

Conference (2010, March 02)

L'objectif du travail de recherche est le développement d'un modèle numérique simulant les phénomènes aéroélastiques affectant les corps non-profilés, caractérisés par des effets de décrochage/raccrochage ... [more ▼]

L'objectif du travail de recherche est le développement d'un modèle numérique simulant les phénomènes aéroélastiques affectant les corps non-profilés, caractérisés par des effets de décrochage/raccrochage du fluide.L'application de ce modèle aux tabliers de point est prévue. [less ▲]

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See detailMultivariate extensions of the coefficient of variation with applications
Zhang, Lixin ULg

Conference (2010, March)

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See detailPromouvoir des approches innovantes de recherche-développement en matière de GIRE au Burkina Faso.
Wellens, J.; Diallo, M.; Gardin, N. et al

Conference (2010, March)

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See detailMeans and medians in nonlinear spaces
Collard, Anne ULg; Sepulchre, Rodolphe ULg

Conference (2010, March)

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See detailResting-state auditory network in tinnitus: a fMRI study
Maudoux, Audrey ULg; LEFEBVRE, Philippe ULg; CABAY, Jean-Evrard ULg et al

Conference (2010, March)

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See detailPlace et importance de la Phytothérapie en thérapeutique moderne
Tits, Monique ULg

Conference (2010, March)

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See detailUniversal service financing in competitive postal markets: One size does not fit all
Gautier, Axel ULg; Paolini, Dimitri

Conference (2010, March)

In the postal sector, the financial burden of the universal service depends on its content, the postal market characteristics and the country’s geographical configuration. These three groups of factors ... [more ▼]

In the postal sector, the financial burden of the universal service depends on its content, the postal market characteristics and the country’s geographical configuration. These three groups of factors affect both the direct cost of providing the service and the extent of competition on the market. In this paper, we consider countries with different geographical characteristics and we show that the choice of an appropriate mechanism to share the burden of universal service between market participants depends on the country configuration. Thus, for universal service financing, one size does not fit all. [less ▲]

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See detailEcosystem services in mixed forests and monocultures: comparing stakeholders’ perceptions and scientific knowledge
Carnol, Monique ULg; Branquart, Etienne; Muys, Bart et al

Conference (2010, March)

This study examines the common ground between current scientific knowledge and stakeholders’ perception of ecosystem services in mixed forests versus monocultures. An enquiry was performed within the ... [more ▼]

This study examines the common ground between current scientific knowledge and stakeholders’ perception of ecosystem services in mixed forests versus monocultures. An enquiry was performed within the frame of the project FORBIO aiming at the ‘Assessment of the effects of tree species BIOdiversity on FORest ecosystem functioning’ (http://forbio.biodiversity.be). The objective of this enquiry was to confront the perception of the influence of mixed species stands on ecosystem services in Belgium with actual scientific knowledge. The target groups were forest managers, users and scientists. As a general frame for the questionnaire, the ‘Millenium Ecosystem Assessment’, assessing the consequences of ecosystem change for human well-being, was selected. Respondents were asked to express their degree of agreement with statements related to the provisioning (production/quality, financial return), supporting (biodiversity, nutrient cycling, resistance), regulating (climate, air, soil, water) and cultural (aesthetics, recreation) ecosystem services, comparing mixed species to pure stands. Other questions addressed management objectives and the general profile of participants. The web-based questionnaires (SurveyMonkey) were established in Flemish and in French and invitations to respond were distributed by e-mail among key contact persons of forestry/nature associations, forest managers and scientists. After one month, a total of 142 and 228 responses were collected for the questionnaire in Flemish and in French, respectively. In this paper, we summarize main results by analyzing the profile of respondents and describing their perception of forest ecosystem services. Through the confrontation of this perception with the current scientific knowledge and through the identification of established scientific facts unknown to the general public, we identify gaps in scientific knowledge and ways of improving communication between scientists and managers. [less ▲]

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See detailLangue, littérature et effet comique
Van Beveren, Julien ULg

Conference (2010, March)

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See detailPrincipes d’enseignement de la déontologie en sciences psychologiques.
Blavier, Adelaïde ULg

Conference (2010, March)

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See detailAnalgésie après coelioscopie
VERSCHEURE, Sara ULg; LAUWICK, Séverine ULg; KABA, Abdourahmane ULg et al

Conference (2010, March)

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See detailAcouphènes
Maudoux, Audrey ULg

Conference (2010, March)

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See detailA web interface for gridding and visualizing oceanographic data sets
Barth, Alexander ULg; Alvera Azcarate, Aïda ULg; Sirjacobs, Damien ULg et al

Conference (2010, March)

Spatial interpolation of observations on a regular grid is a common task in many oceanographic disciplines (and geosciences in general). Diva (Data-Interpolating Variational Analysis) is an analysis tool ... [more ▼]

Spatial interpolation of observations on a regular grid is a common task in many oceanographic disciplines (and geosciences in general). Diva (Data-Interpolating Variational Analysis) is an analysis tool for gridding oceanographic in situ data. Diva takes the error in the observations and the typical spatial scale of the underlying field into account. Barriers due to the coastline and the topography in general are also used to propagate the information of a given observation spatially. Diva is a command-line driven application. To make Diva easier to use, a web interface has been developed. The user can directly upload his/her data in ASCII format and enter several parameters for the analysis. The analyzed field, location of the observations, and the error mask are then directly visualized in the browser. While this interface allows the user to create his/her own gridded field, a web interface is also developed to visualize pre-computed gridded oceanographic data sets. Those data sets are typically four-dimensional (longitude, latitude, depth and time). The system allows to visualize horizontal sections at a given depth and time to study the horizontal distribution of a given variable. It is also possible to display the results on an arbitrary vertical section. To study the evolution of the variable in time, the horizontal and vertical sections can also be animated. The user can customize the plot by changing the color-map, the range of the color-bar, the type of the plot (linearly interpolated color, simple contours, filled contours) and download the current view as a simple image or as Keyhole Markup Language (KML) file for visualization in applications such as Google Earth. The system is build using a client and server architecture. The server is written in Python using the Web Server Gateway Interface. The server implements version 1.1.1 and 1.3.0 of the Web Map Service (WMS) protocol of the Open Geospatial Consortium. On the server, all oceanographic data sets are stored as NetCDF files organized in folders and sub-folders allowing for a hierarchical presentation of the available variables. The client is build as a web application using the OpenLayers Javascript library. The web interface is accessible at http://gher-diva.phys.ulg.ac.be/. It is currently used for climatologies created in the frame of the SeaDataNet project and will be used for the EMODNET project (chemical lot). Thrid-party data centers can also integrate the web interface of Diva to show an interpolated field of in situ data as an additional WMS layer. A demonstration near-real time cloud-free sea surface temperature (SST) product of the Mediterranean Sea is presented. The reconstruction of the data set missing information (due to clouds, for example) is realised using DINEOF (Data Interpolating Empirical Orthogonal Functions). DINEOF is an EOF-based technique that does no need a priori information about the data set (such as signal to noise ratio, or correlation length) and that has shown to be faster and equally reliable than other widely used techniques for reconstructing missing data, such as optimal interpolation. Here we present a daily reconstruction of the Western Mediterranean SST. Cloudy data are downloaded from the Ifremer Medspiration ftp site. After extracting the data from the study zone, they are added to a data set containing the last 6 months of SST. A first DINEOF reconstruction is performed to identify outliers, i.e. pixels for which the analysis-observation difference (the residuals) are larger than the statistically expected misfit calculated during the analysis. Proximity to a cloud edge and deviation respect to a local median also penalize a pixel in the outlier classification. These outliers are removed from the original data set, and a second DINEOF reconstruction is performed, along with the calculation of error maps. Plots are realised, and the reconstruction of the latest 10 days is shown at http://gher-diva.phys.ulg.ac.be/DINEOF/dineof.html, together with the original data, the error maps and identified outliers. The whole procedure takes less than two hours and has been running automatically for more than 5 months. This product is intended as a demonstration of the capabilities of DINEOF as a near-real time technique to reconstruct missing data in satellite data sets. This procedure can be easily applied to other variables and other geographical zones. [less ▲]

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See detailVers une grille de lecture des pratiques d’entreprises en matière d’intrapreneuriat
Lisein, Olivier ULg; Degré, Julie ULg

Conference (2010, March)

Alors qu’il est reconnu comme étant un vecteur potentiel d’innovations stratégiques pour les entreprises capables de s’en saisir, et qu’il est d’ailleurs à cette fin fortement valorisé par certaines ... [more ▼]

Alors qu’il est reconnu comme étant un vecteur potentiel d’innovations stratégiques pour les entreprises capables de s’en saisir, et qu’il est d’ailleurs à cette fin fortement valorisé par certaines firmes, l’intrapreneuriat reste encore un concept relativement méconnu. Peu de choses semblent aujourd’hui validées empiriquement dans la littérature sur ses éléments constitutifs, sur les dispositifs intrapreneuriaux ciblés par les entreprises ainsi que sur les facteurs susceptibles de favoriser des comportements d’intrapreneurs de la part des salariés. Notre communication entend répondre en partie à ces manquements, en proposant une exploration empirique des pratiques d’entreprises en matière d’intrapreneuriat. Plus précisément, notre propos, élaboré à partir d’une démarche exploratoire reposant sur dix-sept études de cas d’entreprises réputées recourir à l’intrapreneuriat, vise à cerner plus en avant la nature intrinsèque des stratégies intrapreneuriales développées par les entreprises au travers de différentes dimensions clés. Celles-ci, générées par induction, nous permettent de caractériser des approches contrastées de l’intrapreneuriat au sein des firmes étudiées et d’en proposer un essai de typologie au travers d’une grille de lecture novatrice. [less ▲]

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See detailMMPs and their inhibitors in vascular remodeling and vascular disease
Sounni, Nor Eddine ULg

Conference (2010, March)

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See detailA recipe for biogeochemical modelling using 3D pelagic models
Grégoire, Marilaure ULg

Conference (2010, March)

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See detailLa déontologie du psychologue en centre de santé mentale
Blavier, Adelaïde ULg

Conference (2010, February 29)

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See detailPsychiatry and the humanities: the contribution of cinema
Laroi, Frank ULg; Raballo, Andrea

Conference (2010, February 27)

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See detailRelaxation to Thermodynamical Equilibrium from Simulations of Quantum Dynamics
Fresch, Barbara ULg

Conference (2010, February 26)

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See detailLa théorie de l'attachement
Degraux, Christine ULg

Conference (2010, February 25)

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See detailCloud-free satellite data for operational applications using DINEOF
Alvera Azcarate, Aïda ULg; Barth, Alexander ULg; Sirjacobs, Damien ULg et al

Conference (2010, February 24)

DINEOF (Data Interpolating Empirical Orthogonal Functions) is an EOF-based technique to reconstruct missing data in satellite data sets, such as gaps created by the presence of clouds. It is parameter ... [more ▼]

DINEOF (Data Interpolating Empirical Orthogonal Functions) is an EOF-based technique to reconstruct missing data in satellite data sets, such as gaps created by the presence of clouds. It is parameter-free, meaning that no a priori information is needed (such as signal to noise ratio, or correlation length) to calculate the missing data: this information is extracted from the data through the EOF decomposition. In addition, computational time is lower than for other frequently used techniques to reconstruct missing data in satellites, such as optimal interpolation. Multivariate reconstructions can be also done, using extended EOFs. These characteristics make DINEOF very suitable for operational reconstruction of satellite data. Recently added to DINEOF is a technique to filter the temporal covariance matrix which allows to reduce spurious variability in the temporal EOFs, and therefore leads to improved reconstructions. We will present a general description of the technology, with examples of applications to different variables. We will also give an example of a near real time reconstruction of sea surface temperature in the western Mediterranean Sea. Conceived as a demonstration product for DINEOF, it is hosted at http://gher-diva.phys.ulg.ac.be/DINEOF/dineof.html and it is automatically updated daily, presenting the cloud-free sea surface temperature for the last ten days, as well as the original data, outliers and error fields. [less ▲]

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See detailPrécision du positionnement par satellites: influence de la géométrie de la constellation
Lonchay, Matthieu ULg

Conference (2010, February 24)

De nombreux facteurs sont susceptibles d’influencer la précision des systèmes globaux de positionnement et de navigation par satellites (GNSS, Global Navigation Satellite System), dont la géométrie de la ... [more ▼]

De nombreux facteurs sont susceptibles d’influencer la précision des systèmes globaux de positionnement et de navigation par satellites (GNSS, Global Navigation Satellite System), dont la géométrie de la constellation. La qualité de la géométrie de la constellation s’évalue au moyen d’un indicateur : le DOP (Dilution Of Precision). Certaines formes très particulières de la géométrie de la constellation nuisent de manière importante à la précision du positionnement par satellites. C’est le cas de la constellation de forme conique. Ces situations particulières se caractérisent par un état singulier de la matrice normale et de hautes valeurs du DOP. [less ▲]

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See detailÉvolution(1979-2008)des services d'hospitalisation en Belgique. Quel(s) liens avec la hiérarchie urbaine?
Trotta, Marie ULg

Conference (2010, February 24)

L'organisation de l'offre hospitalière ainsi que sa planification se voient aujourd'hui bouleversées par les logiques de marché ou d'efficience progressivement introduites dans le système hospitalier en ... [more ▼]

L'organisation de l'offre hospitalière ainsi que sa planification se voient aujourd'hui bouleversées par les logiques de marché ou d'efficience progressivement introduites dans le système hospitalier en Belgique comme dans les pays voisins. Ce bouleversement n’est pas sans impact sur l’organisation spatiale des services de soins. Toutefois, si certains auteurs y voient un renforcement de la relation à la hiérarchie urbaine, d’autres soutiennent l’hypothèse de l’émergence d’un tout autre modèle organisationnel : le réseau. L’objectif de cette recherche était de comparer l'organisation spatiale des services d’hospitalisation juste avant l’introduction d’un moratoire stoppant la croissance hospitalière (année 1979) avec la situation actuelle (année 2008) au travers de leur relation à la hiérarchie urbaine sur le territoire belge afin de soutenir l’une ou l’autre hypothèse. Si un renforcement de la relation n’apparaît que très légèrement, on a surtout pu démontrer un comportement différencié selon le type de services analysés et leur place dans la pyramide des soins. Promoteur du Mémoire : Bernadette Mérenne-Schoumaker. [less ▲]

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See detailLes flux de CO2 en grandes cultures
Dufranne, Delphine ULg; Jerome, Elisabeth ULg; Moureaux, Christine ULg et al

Conference (2010, February 24)

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See detailPragmatic inferencing and the rise of the go-future in Egyptian
Grossman, Eitan; Polis, Stéphane ULg

Conference (2010, February 24)

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See detailRestorative detention in Belgium: policy and organizational processes
Dubois, Christophe ULg

Conference (2010, February 23)

Detailed reference viewed: 36 (3 ULg)
See detailRoxolid a new implant material
LAMBERT, France ULg; ROMPEN, Eric ULg

Conference (2010, February 23)

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See detailEffects of edaphic factors and agricultural practices on phosphorus availability
Renneson, Malorie ULg; Dufey, Joseph; Bock, Laurent ULg et al

Conference (2010, February 23)

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See detailParticle counting - Coulter Multisizer
Grandfils, Christian ULg

Conference (2010, February 22)

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See detailParticle size analysis in pharmaceutical industry: specific requirements
Grandfils, Christian ULg

Conference (2010, February 22)

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See detailIntrospection et perception interne: Brentano et l’école de Würzburg
Boccaccini, Federico ULg

Conference (2010, February 19)

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See detailLa Forfaitarisation des Spécialités Pharmaceutiques en milieu hospitalier
Van Hees, Thierry ULg

Conference (2010, February 13)

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See detailLe rôle de l'espace frontalier dans la réconciliation belgo-allemande après 1945
Brüll, Christoph ULg

Conference (2010, February 12)

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See detailLes outils de programmation pour les collectivités locales en Belgique
Husson, Jean-François ULg

Conference (2010, February 12)

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