Modelling zooplankton impacts on sedimentationDarchambeau, François ; ; et alPoster (2000, June 05) Detailed reference viewed: 1 (0 ULg) Multi-Sensor Image Fusion: 3D Visualization and Search Agents; ; et al Conference (2000, June) Detailed reference viewed: 5 (0 ULg) Design of concrete columns based on EC2 tabulated data – A critical reviewFranssen, Jean-Marc ![]() in Franssen, Jean-Marc (Ed.) Proc. 1rst int. Structures in Fire workshop (2000, June) Detailed reference viewed: 68 (2 ULg) New quadrangular shell element in SAFIR; Franssen, Jean-Marc ![]() in Franssen, Jean-Marc (Ed.) Proc. 1rst int. Structures in Fire workshop (2000, June) Detailed reference viewed: 29 (3 ULg) Use of photorefractive materials for holographic recording : From crystal study to camera device in view of applied holographic interferometryLemaire, Philippe ; Georges, Marc ![]() in Lessard, Roger; Lampropoulos, George (Eds.) Applications of Photonic Technology 4 (2000, June) We present a holographic camera based on a photorefractive crystal. A first prototype instrument has been studied and built on the basis of a broad optimization study. Some applications in high accuracy ... [more ▼] We present a holographic camera based on a photorefractive crystal. A first prototype instrument has been studied and built on the basis of a broad optimization study. Some applications in high accuracy displacement/deformation metrology are presented. This first instrument generation was not completely portable and flexible of use. For that reason, a compact device has been designed and is presented. New applications of this holographic camera are shown. All theses achievements show the versatility and flexibility of utilization, as well as the high degree of user-friendliness, of a photorefractive crystal based holographic camera. Future prospects are then discussed [less ▲] Detailed reference viewed: 5 (0 ULg) Lateral Torsional Buckling of Steel I-Beams in Case of Fire – Numerical Modelling; Franssen, Jean-Marc ![]() in Franssen, Jean-Marc (Ed.) Proc. 1rst int. Structures in Fire workshop (2000, June) Detailed reference viewed: 11 (2 ULg) Activity and inhibition mechanism of coumarin-based derivatives as protease inhibitor; ; et al Poster (2000, June) Detailed reference viewed: 3 (0 ULg) Quelques pistes méthodologiques pour développer des compétences d'autoformation chez des apprenants à l'université. Communication présentée au colloque du CNAM sur l'auto-formation, ParisDenis, Brigitte ; Leclercq, Dieudonné ![]() Conference (2000, June) Cet article traite de la mise en œuvre de diverses pratiques pédagogiques visant à développer des compétences utiles à l'autoformation chez des étudiants universitaires. L'enjeu est d'amener ces derniers ... [more ▼] Cet article traite de la mise en œuvre de diverses pratiques pédagogiques visant à développer des compétences utiles à l'autoformation chez des étudiants universitaires. L'enjeu est d'amener ces derniers à prendre en charge une ou plusieurs phases du processus d'autoformation (Leclercq et Denis, 1995). Différents contextes sont pris en compte : cours dans de grands auditoires (200 à 500 étudiants), en petits groupes (10 à 15) ou en groupes de taille moyenne (30 à 40). Différents scénarios pédagogiques qui tous favorisent un apprentissage actif et le développement de compétences utiles pour devenir un bon auto-apprenant combinent certains des six paradigmes d'apprentissage/enseignement définis par Leclercq et Denis (1998). Ces scénarios sont la méthode des exposés structurés, l'amphithéâtre électronique, l'apprentissage collaboratif basé sur des problèmes et les PARM (Projets d'Animation Réciproques Multimédias). Les auteurs indiquent dans quelle mesure ces stratégies pédagogiques contribuent à faire atteindre des objectifs répondant aux diverses phases du processus d'auto-formation : définition des besoins d'apprentissage, définition d'un projet personnel de formation, fixation d'un plan d'action, action de formation, auto-évaluation et décisions éventuelles d'auto-régulation du processus. Un modèle d'architecture des compétences à faire acquérir par les apprenants (Leclercq, 1987) est proposé et mis en relation avec les scénarios pédagogiques expérimentés. Il traite à la fois de compétences transversales et spécifiques. Quatre niveaux sont distingués : les compétences dynamiques se rapportent à la motivation des apprenants, à leur représentation d'eux-mêmes en tant qu'individus capables d'apprendre ; les compétences stratégiques relèvent entre autres de conduites de résolution de problèmes, de la planification des tâches, des interactions sociales et de la métacognition ; les compétences démultiplicatrices sont celles qui permettent d'accéder à de nouveaux savoirs ; les compétences spécifiques sont liées à des contenus, des procédures, généralement non transférables. Une liste de compétences techniques permettant aux apprenants de situer leurs apprentissages et d'auto-évaluer leur maîtrise de divers outils technologiques - utiles notamment dans la mise en œuvre de formations à distance - est également décrite ainsi que son utilisation pratique (Denis, 2000). [less ▲] Detailed reference viewed: 196 (9 ULg) Optimal heating control in a passive solar commercial building; Andre, Philippe ; Nicolas, Jacques ![]() in Proceedings EuroSun'2000 Congress (2000, June) A smart heating controller has a twofold objective: to save as much energy as possible while maintaining an acceptable comfort level in the building. Due to very large time constants in the building ... [more ▼] A smart heating controller has a twofold objective: to save as much energy as possible while maintaining an acceptable comfort level in the building. Due to very large time constants in the building response, it has to anticipate internal and external disturbances. In the case of a passive solar commercial building, the need for anticipation is reinforced by important solar and internal gains. Indeed, large solar gains increase the energy savings potential but also the overheating risk. Optimal control theory presents an ideal formalism to solve this problem : its principle is to anticipate the building behaviour using a model and a forecasting of the disturbances in order to compute the control sequence that minimises a given cost function over the optimisation horizon. This cost function can combine comfort level and energy consumption. This paper presents the application of optimal control to auxiliary heating of a passive solar commercial building. Simulation-based and experimental results show that it can lead to significant energy savings while maintaining or improving the comfort level in this type of building. [less ▲] Detailed reference viewed: 15 (1 ULg) Endogenous Growth and Regional Dynamics in an OLG Model with LandArtige, Lionel ![]() Conference (2000, June) Detailed reference viewed: 17 (4 ULg) Mechanical properties of spread films from Acacia gums.Blecker, Christophe ![]() Poster (2000, June) Detailed reference viewed: 2 (1 ULg) The Belgian crop growth modelling system (B-CGMS). Contribution of remote sensing.; Tychon, Bernard ; et alConference (2000, May 31) Detailed reference viewed: 6 (2 ULg) Création d'un site Internet d'Evidence Based Medicine" pour les professionnels de la santé et les patients.Delvenne, Catherine ; Delvenne, Philippe ; Bonnet, Pierre et alConference (2000, May 31) Detailed reference viewed: 25 (4 ULg) Aide à la délimitation de zones de calamités.; Tychon, Bernard ; et alConference (2000, May 31) Detailed reference viewed: 4 (0 ULg) Estimation et prévision des productions agricoles à l'échelle de la Belgique à l'aide d'un système intégré "Modèle agrométéorologique - Télédétection".; ; Tychon, Bernard et alConference (2000, May 31) Detailed reference viewed: 11 (2 ULg) Modelling zooplankton impacts on sedimentationDarchambeau, François ![]() Conference (2000, May 28) Detailed reference viewed: 2 (1 ULg) Approche comparative de l’immigration chinoise en Hongrie et en Italie au cours des années 1990Florence, Eric ![]() Conference (2000, May 26) Detailed reference viewed: 4 (0 ULg) Discordance between Bovine Leukemia Virus Tax immortalization in vitro and oncogenicity in vivo: generation of a rare CD8-positive B-lymphocyte leukemia by the TAX phosphorylation mutant.Twizere, Jean-Claude ; ; et alPoster (2000, May 26) Detailed reference viewed: 13 (1 ULg) Du diagnostic des risques psychosociaux à l'intervention organisationnelle : études de cas.Hansez, Isabelle ![]() Conference (2000, May 25) Detailed reference viewed: 19 (3 ULg) Développer des compétences "historiennes" en classe d'histoireJadoulle, Jean-Louis ![]() in Actes du Ier Congrès des chercheurs en éducation. Le point sur la recherche en éducation en Communauté française (2000, May 24) Detailed reference viewed: 28 (11 ULg) Isolation and characterization of insertional mutants hypersensitive to heavy metals and oxidative stress in Chlamydomonas reinhardtiiHanikenne, Marc ; Matagne, René-Fernand ; Loppes, Roland ![]() Poster (2000, May 21) Detailed reference viewed: 4 (0 ULg) Reversible Destiny and the Poetic Subject: The Art of Madeline Gins and ArakawaDelville, Michel ![]() in Dworkin, Craig (Ed.) Architextures of Poetry (2000, May 19) Detailed reference viewed: 9 (0 ULg) Aging, source memory, and controlled processes; Adam, Stéphane ![]() Poster (2000, May 12) Detailed reference viewed: 4 (0 ULg) Synthèse du 6-fluoro-a-méthyl-L-tryptophane et de ses principaux métabolites; ; et al Poster (2000, May 12) Detailed reference viewed: 10 (0 ULg) Three years of trials with trifloxystrobine fungicides in cereals in Belgium; Vancutsem, Françoise ; Bodson, Bernard et alin Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (2000, May 09), 65(2b), 749-760 Trifloxystrobine-based fungicides were tested for two years in winter barley and three years in winter wheat in Belgium. One or two applications were compared with other strobilurine based fungicides. The ... [more ▼] Trifloxystrobine-based fungicides were tested for two years in winter barley and three years in winter wheat in Belgium. One or two applications were compared with other strobilurine based fungicides. The efficacy of the combinations of trifloxystrobine (125 g/ha) + propiconazole (125 g/ha) and trifloxystrobine (125 g/ha) + cyproconazole (80 g/ha) for disease control in winter barley and winter wheat, respectivvely, was confirmed. They allowed yield increases comparable to those obtained with kresoxim-methyl and azoxystrobine-based fungicides [less ▲] Detailed reference viewed: 32 (0 ULg) A survey of wheat take-all in BelgiumBodson, Bernard ; ; et alin Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (2000, May 09), 65(2a), 565-572 Take-all of wheat caused by the soil-borne fungus Gaeumannomyces graminis var. Tritici (Ggt) is known world-wide as a major yield-limiting factor. In Belgium, the Take-all disease is not very well known ... [more ▼] Take-all of wheat caused by the soil-borne fungus Gaeumannomyces graminis var. Tritici (Ggt) is known world-wide as a major yield-limiting factor. In Belgium, the Take-all disease is not very well known. A take-all survey has been set up in 1999 in Belgium in collaboration between the Agricultural University of Gembloux and Monsanto where goals were to quantify the disease in the main cereal areas and to study the main factors influencing take-all development. [less ▲] Detailed reference viewed: 27 (0 ULg) Erreurs de catégorie et erreur de catégoriserLeclercq, Bruno ![]() Conference (2000, May 06) Detailed reference viewed: 8 (0 ULg) Gravité de l'infection néonatale à GBS. Stratégies de prévention et Prise en charge du nouveau-né. Situation en Communauté Française.Melin, Pierrette ![]() Conference (2000, May 06) Detailed reference viewed: 3 (0 ULg) Pleiotropic drug sensitive mutants induced by insertional mutagenesis in ChlamydomonasHanikenne, Marc ; Matagne, René-Fernand ; Loppes, Roland ![]() Poster (2000, May 05) Detailed reference viewed: 3 (0 ULg) Unruptured intracranial aneurysm-risk of rupture and risks of surgical intervention.Martin, Didier ![]() Conference (2000, May 04) Detailed reference viewed: 4 (0 ULg) γ-bromo-ε-caprolactone, a versatile lactone for the synthesis of new functional aliphatic polyesters; ; et al Poster (2000, May 02) Detailed reference viewed: 18 (2 ULg) Synthesis of new substituted polycaprolactones by ring-opening polymerizationJérôme, Robert ; Detrembleur, Christophe ; Lecomte, Philippe ![]() Conference (2000, May 02) Detailed reference viewed: 13 (2 ULg) On the dynamic stability of Saturn's F ring; Jancart, Sylvie ![]() in Bulletin of the American Astronomical Society (2000, May 01) We explore the dynamics of Saturn's F ring by following the orbital histories of circumplanetary particles between the orbits of Prometheus and Pandora. Our goal is to find structures that could be ... [more ▼] We explore the dynamics of Saturn's F ring by following the orbital histories of circumplanetary particles between the orbits of Prometheus and Pandora. Our goal is to find structures that could be related to the F ring. Using a 3-D mapping integrator developped by Sicardy and Foryta (1996), we follow the behavior of several thousand test particles distributed unformly between 140,000 and 140,400 km in order to acquire a general picture of the dynamics of this zone. The model includes the gravitational effects of Saturn (up to J[SUB]4[/SUB]) and the two shepherd satellites. The numerical simulations show chaotic behaviors of the particles resulting in a close encounter with one or the other of the satellites, which deplete the zone between the satellites. The timescale over which particles are removed by the satellites is of order a ten thousand years. After a hundred thousand years, some particles exist but they are not related to the actual four strands of the F ring. As suggested by Cuzzi and Burns (1988), these simulations indicate that this ring may be a transient event occuring at the edge of the Roche limit. However, taking into account dissipation (collisions, viscosity) might help to explain the longevity and the location of this ring. This work was performed while the author held a National Research Council - NASA ARC Research Associateship. [less ▲] Detailed reference viewed: 3 (1 ULg) La résistance mécanique du sol: mesure en continu et cartographie pour l’agriculture de précisionSirjacobs, Damien ; Destain, Marie-France ![]() in Zwaenepoel, Philippe (Ed.) Agriculture de Précision - Avancées de la recherche technologique et industrielle (2000, May) La résistance mécanique d'un sol est un paramètre important qui conditionne la croissance racinaire et le développement des plantes. L'objectif de cette recherche est de mettre au point un capteur capable ... [more ▼] La résistance mécanique d'un sol est un paramètre important qui conditionne la croissance racinaire et le développement des plantes. L'objectif de cette recherche est de mettre au point un capteur capable de mesurer en ligne les variations locales de résistance du sol. Celui-ci est constitué d'un anneau dynamométrique qui enregistre automatiquement les sollicitations (forces horizontales, verticales et couple) générées par la traction uniforme d'un lame dans le sol. Une première expérience a été menée dans un champ limoneux situé en Hesbaye (Belgique). Le géocodage de ces informations via un système DGPS a permis d'identifier des zones de diverses résistance au sein de la parcelle étudiée. [less ▲] Detailed reference viewed: 54 (3 ULg) Sum-frequency generation characterisation of methanol, pentadecanoïc acid and water interfaces; Dreesen, Laurent ; et alPoster (2000, May) Detailed reference viewed: 3 (1 ULg) Etude de quelques dérivés benzothiadiaziniques apparentés au diazoxide et aux thiazides en tant qu’activateurs de canaux potassiques; ; et al Poster (2000, May) Detailed reference viewed: 3 (0 ULg) Conception, synthèse et évaluation pharmacologique de l’analogue pyridinique du nimésulide en tant qu’inhibiteur des cyclooxygénases; ; et al Poster (2000, May) Detailed reference viewed: 1 (0 ULg) Fully and Partially Reusable TSTO launchers using In-Flight LOX Collection; ; et al in 22nd International Symposium on Space Technology and Science (ISTS) (2000, May) Detailed reference viewed: 18 (0 ULg) ALE Update Procedures for Stationary Solutions of Metal Forming ProcessesBoman, Romain ; Ponthot, Jean-Philippe ![]() in Proceedings of the 5th National Belgian Congress on Theoretical and Applied Mechanics (2000, May) Detailed reference viewed: 16 (11 ULg) Development of a cutaneous hydrogel containing miconazole by the useof hydroxypropyl-b-cyclodextrin and lactic acidPiel, Géraldine ; Evrard, Brigitte ; Van Hees, Thierry et alPoster (2000, May) Detailed reference viewed: 10 (2 ULg) An advanced tool for Preventive Voltage Security AssessmentVan Cutsem, Thierry ; Capitanescu, Florin ; et al(2000, May) This paper deals with methods for the preventive assessment of voltage security with respect to contingencies. We describe a computing tool for the determination of secure operation limits, together with ... [more ▼] This paper deals with methods for the preventive assessment of voltage security with respect to contingencies. We describe a computing tool for the determination of secure operation limits, together with methods for contingency filtering. Examples from two very different real-life systems are provided. We outline extensions in the field of preventive control. [less ▲] Detailed reference viewed: 61 (6 ULg) Evaluation de la selectivité COX-1/COX-2 de drogues à visée anti-inflammatoire sur sang humain; ; et al Poster (2000, May) Detailed reference viewed: 3 (0 ULg) Des outils pour évaluer les compétences transversales; Denis, Brigitte ![]() in Actes du 1er congrès des chercheurs en éducation (2000, May) La problématique de l’évaluation des compétences transversales est au centre des préoccupations actuelles. Alors que de nombreuses méthodes d’évaluation des compétences disciplinaires existent et sont ... [more ▼] La problématique de l’évaluation des compétences transversales est au centre des préoccupations actuelles. Alors que de nombreuses méthodes d’évaluation des compétences disciplinaires existent et sont usitées par les enseignants (interrogations au moyen de questions ouvertes, de QCM, examens oraux, …, Leclercq (1999), de Landsheere (1992)), l’évaluation des compétences transversales pose davantage de problèmes car, d’une part, la collecte d’informations permettant de juger de l’acquisition de ces compétences chez les élèves est plus délicate (elle nécessite souvent l’observation des élèves au cours de l’activité d’apprentissage, et ce au moyen de grilles d’observation (Denis, 1990)) ; d’autre part, l’acquisition des compétences transversales doit être envisagée à long terme et, par conséquent, leur évaluation doit se faire de manière continue et progressive. Une enquête réalisée auprès de 98 professeurs du cours d’Education par la Technologie1 révèle que 43% d’entre eux disent éprouver des difficultés pour apprécier l’acquisition de ces compétences chez leurs élèves (Hubert, Pauwen & Denis, 1997). De juillet 1997 à juin 1998, le Service de Technologie de l’Education de l’Université de Liège a été chargé par le Ministère de la Communauté française de mettre au point des outils permettant l’évaluation de ce type de compétences (Hubert, Bosmans & Denis, 1998). Cette recherche avait pour objectif de fournir aux enseignants du cours d’Education par la Technologie (ET) des méthodes et des moyens didactiques diversifiés pour évaluer les compétences transversales de leurs élèves lors d’activités de résolution de problèmes, mais aussi d’imaginer un système intégrant ces outils. Actuellement, l’évaluation de ces compétences fait également l’objet d’une réflexion dans le contexte de l’utilisation pédagogique d’Internet où les élèves sont amenés à réaliser, en groupe, un projet au moyen des potentialités offertes par Internet (Hubert, Detroz, Demily & Denis, 1999). Nous allons détailler, ici, les principes de base, les composantes principales et les modalités du système d’évaluation construit dans le cadre du cours d’ET. Nous tenterons d’attirer l’attention du lecteur sur les aspects méthodologiques qu’il convient d’annoncer à l’enseignant (et aux élèves). [less ▲] Detailed reference viewed: 203 (3 ULg) 3-Alkylamino-6,7-dichloro-4H-1,2,4-benzothiadiazine 1,1-dioxydes: synthèse et évaluation pharmacologique en tant qu’activateurs potentiels du canal potassique ATP-dépendant; ; et al Poster (2000, May) Detailed reference viewed: 3 (0 ULg) Short chain fructo-oligosaccharides (SC FOS) in hyperlipidaemic dogsDiez, Marianne ; Grauwels, Magda ; et alin Abstracts of Dietary Fibre 2000 (2000, May) Detailed reference viewed: 14 (1 ULg) The age, a tool for understanding complex fluid flows; Beckers, Jean-Marie ; et alConference (2000, May) Detailed reference viewed: 3 (2 ULg) Le 6-(acetoxymethyl)-2-oxo-2H-1-benzopyrane-3-carboxylate de 3-chlorophényle agissant en tant qu’inhibiteur potentiel de l’invasion tumorale; ; et al Poster (2000, May) Detailed reference viewed: 11 (0 ULg) The alternative oxidase genes and their expression in ChlamydomonasBaurain, Denis ; Matagne, René-Fernand ; Poster (2000, May) Mitochondria of Chlamydomonas possess a terminal cyanide-resistant alternative oxidase (AOX) that reduces oxygen to water with electrons derived from the ubiquinone pool. Mutants inactivated in the ... [more ▼] Mitochondria of Chlamydomonas possess a terminal cyanide-resistant alternative oxidase (AOX) that reduces oxygen to water with electrons derived from the ubiquinone pool. Mutants inactivated in the cytochrome pathway of respiration are still able to consume oxygen via the alternative oxidase pathway. – By combining PCR, RT-PCR and screening of a Chlamydomonas cDNA library, two genes, AOX1 and AOX2, were identified. The cDNAs from AOX1 and AOX2 contain ORFs encoding predicted proteins of 360 and 347 amino acids, respectively. In both cases, a potential targeting presequence was identified in the protein sequence. The two AOX proteins have only 57.6% identity. Compared to AOX proteins from plants and fungi, the highest degree of identity (35-38%) was found with proteins from Aspergillus niger and Ajellomyces capsulatus. – The expression of AOX1 and AOX2 was analyzed at transcriptional level in wild-type and in dum19 mutant cells deprived of cytochrome c oxidase activity. Very low amounts of the 1.9-kb AOX2 transcript were present compared to the 2.3-kb AOX1 transcript. The expression of AOX1 was 2-6 times higher in the mutant than in wild-type, indicating that the absence of the cytochrome pathway of respiration enhances the transcriptional activity of the gene. Supported by FRFC grant 2.4527.97. [less ▲] Detailed reference viewed: 11 (1 ULg) Synthèse et évaluation biologique de composés structuralement apparentés au 7-chloro-3-isopropylamino-4H-1,2,4-benzothiadiazine 1,1-dioxyde (BPDZ 73): introduction d’hétéroatomes au niveau de la chaîne latérale en position 3 du cycle benzothiadiazine 1,1-dioxyde; ; De Tullio, Pascal et alPoster (2000, May) Detailed reference viewed: 1 (0 ULg) Les 3-R/S-(hydroxyalkylamino)-4H-1,2,4-benzothiadiazine 1,1-dioxydes en tant qu’activateurs potentiels des canaux KATP: Influence de la stéréochimie sur l’activité pharmacologique et la sélectivité tissulaireDe Tullio, Pascal ; ; et alPoster (2000, May) Detailed reference viewed: 5 (0 ULg) Development of a new parenteral solution of miconazole by the use of cyclodextrins derivativesPiel, Géraldine ; Evrard, Brigitte ; Van Hees, Thierry et alPoster (2000, May) Detailed reference viewed: 8 (4 ULg) Determination of trophic status of seabirds using carbon and nitrogen stable isotopesNyssen, Fabienne ; Lepoint, Gilles ; Bouquegneau, Jean-Marie ![]() Poster (2000, May) Detailed reference viewed: 13 (0 ULg) Influence of the culture conditions on lipopeptide production by Bacillus subtilis; ; et al Poster (2000, May) Detailed reference viewed: 19 (0 ULg) Multi- sensor Image Fusion for Efficient Color 3D Site Visualization and Rapid Analysis Utilizing Search Acceleration Algorithms; ; et al Conference (2000, May) Detailed reference viewed: 4 (0 ULg) An Interactive Mining Tool Utilizing an Extension of Fuzzy ARTMAP for Efficient Exploitation and Enhanced Visualization of Multi-sensor Imagery; ; et al Conference (2000, May) Detailed reference viewed: 3 (0 ULg) Use of stable isotopes to delineate amphipod trophic status in Antarctic food websNyssen, Fabienne ; ; Lepoint, Gilles et alPoster (2000, May) Detailed reference viewed: 9 (0 ULg) Learn-Nett : une expérience d'apprentissage collaboratif à distanceDenis, Brigitte ; in Actes du 1er congrès des chercheurs francophones en éducation (2000, May) Présentation du dispositif d'apprentissage collaboratif (Learn-Nett). Detailed reference viewed: 8 (0 ULg) New Version of the Catalytic Asymmetric DihydroxylationColaux, Catherine ![]() Conference (2000, May) Detailed reference viewed: 1 (0 ULg) Location of protection zones along production galleries : an example of methodology; ; et al in Dassargues, Alain (Ed.) Tracers and Modelling in Hydrogeology (2000, May) Detailed reference viewed: 26 (4 ULg) SAR Frequency-Polarization-Resolution TradeoffsVerly, Jacques ![]() Conference (2000, May) Detailed reference viewed: 3 (0 ULg) An other-race effect for an other discriminating taskDehon, Hedwige ![]() Poster (2000, May) Detailed reference viewed: 3 (0 ULg) L’émigration chinoise à destination de l’Europe : aspects socio-économiques et politiques du lieu d’origine, regard sur les effets des chaînes migratoiresFlorence, Eric ![]() Conference (2000, April 26) Detailed reference viewed: 7 (0 ULg) The concentration of polyamines in human blood : a reinvestigation; Grandfils, Christian ; Klimek, Monique et alPoster (2000, April 13) Detailed reference viewed: 2 (0 ULg) Ikonographie des Strassburger MünstersVan den Bossche, Benoît ![]() Conference (2000, April 08) Detailed reference viewed: 9 (0 ULg) Separation of aminoglutethimide enantiomers using single and dual cyclodextrin system in capillary electrophoresis; Fillet, Marianne ; Marini Djang'Eing'A, Roland et alConference (2000, April 07) Detailed reference viewed: 7 (0 ULg) Phytoremediation of persistent organic pollutant in soils: study of the absorption mechanism in two cucurbitacean species and future applicationsCampanella, Bruno ; Paul, Roger ![]() in Kaltsikes, P.J. (Ed.) Phytoremediation 2000 State of the art in Europe (2000, April 06) Detailed reference viewed: 15 (1 ULg) Sum-frequency generation characterisation of methanol-calcium fluoride and water-calcium fluoride interfacesDreesen, Laurent ; ; et alPoster (2000, April 03) Detailed reference viewed: 3 (1 ULg) Marqueurs biologiques de souffrance musculaire et cardiaque pendant des contractions excentriquesPirnay, Freddy ; ; Croisier, Jean-Louis et alPoster (2000, April 01) Detailed reference viewed: 8 (0 ULg) Pulmonary Function Testing in Cattle: application of nuclear scintigraphy to evaluation of pulmonary functionVotion, Dominique ![]() in Pulmonary function in cattle (2000, April) In contrast to other imaging techniques, scintigraphy provides information about the physiology of the lung rather than anatomical observations. As opposed to other pulmonary function tests, scintigraphy ... [more ▼] In contrast to other imaging techniques, scintigraphy provides information about the physiology of the lung rather than anatomical observations. As opposed to other pulmonary function tests, scintigraphy provides regional evaluation instead of global measurement of lung function. This non-invasive imaging technique improves knowledge of the pathophysiologic processes involved in respiratory disorders. Furthermore, it is a sensitive method to early diagnosis of inflammatory process. It is also an unique tool to study the deposition of therapeutic aerosol within the respiratory tract. [less ▲] Detailed reference viewed: 3 (0 ULg) Phénomènes lumineux dans le cielBiémont, Emile ![]() Conference (2000, April) Detailed reference viewed: 2 (0 ULg) Spatial and interspecies variability of mercury accumulation in small cetaceans; Das, Krishna ; et alPoster (2000, April) Detailed reference viewed: 12 (1 ULg) Marine mammals stranded on the Belgian and Dutch coasts: Approach of their feeding ecology by stable isotope and heavy metal measurementsDas, Krishna ; Debacker, Virginie ; Lepoint, Gilles et alPoster (2000, April) The harbour porpoise Phocoena phocoena, the harbour seal Phoca vitulina and the white-beaked dolphin Lagenorhynchus albirostris are commonly found stranded on the Belgian and Dutch coasts. More ... [more ▼] The harbour porpoise Phocoena phocoena, the harbour seal Phoca vitulina and the white-beaked dolphin Lagenorhynchus albirostris are commonly found stranded on the Belgian and Dutch coasts. More occasionally, oceanic species such as the white-sided dolphin Lagenorhynchus acutus, the sperm whale Physeter macrocephalus or the fin whale Balaenoptera physalus are also found stranded. For the last 10 years, trace analyses (Cd, Pb, Cu, Zn, Se, Hg) have been performed in their organs as well as complementary stable isotope ratio determinations (d15N and d13C) in order to trace their respective metal level and trophic position. Sperm whales, fin whales and white-sided dolphins display strong differences in their d13C and d15N values compared to harbour porpoises, harbour seals or white-beaked dolphins. The isotopic data from white-sided dolphins, sperm whales and fin whales suggest that they do not feed mainly within this area. On the contrary, porpoises, seals and white-beaked dolphins display close isotopic data reflecting a similar nutrition within the North Sea. However significant differences appear between these species: harbour porpoises display a significantly lower d15N (mean: 16.4 0/00 against 18.70/00 and 18.8 0/00 respectively) and d3C (mean-17 0/00 against –16 0/00 and –15.70/00 respectively) than harbour seals and white-beaked dolphins reflecting a lower trophic position of the porpoises.Moreover, Harbour porpoise isotopic compositions seem to have changed over the last five years, which could reflect a switch in their diet. In marine mammals, heavy metals are mainly absorbed through the diet and so potential relations between stable isotopes and heavy metals have been investigated. For example, it is suggested that harbour porpoises occasionally feed on cadmium contaminated preys as squids and that harbour seals and white-beaked dolphins are more restrictive on fish. 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