References of "Scientific congresses and symposiums"
     in
Bookmark and Share    
See detailProtein synthesis and folding is a rate limiting step for bacterial growth at low temperatures.
Piette, Florence; D'Amico, Salvino; Leprince, Pierre ULg et al

Poster (2008)

Detailed reference viewed: 11 (1 ULg)
See detailA new method for absolute quantification of allergens in food: the "Heavy Peptides method".
Fourdrilis, Séverine; Bourgeon, Cédric; Kirsch, Stéphanie ULg et al

Poster (2008)

Detailed reference viewed: 42 (5 ULg)
See detailA Nested Model of the West Florida Shelf: Assimilation of High-Frequency Radar Currents and study of Loop Current generated flow
Barth, Alexander ULg; Alvera Azcarate, Aïda ULg; Zheng, L. et al

Conference (2008)

High-Frequency Radar Currents are assimilated in a West Florida Shelf (WFS) model based on the Regional Ocean Model System (ROMS) which is nested in the Atlantic Hybrid Coordinate Ocean Model (HYCOM) to ... [more ▼]

High-Frequency Radar Currents are assimilated in a West Florida Shelf (WFS) model based on the Regional Ocean Model System (ROMS) which is nested in the Atlantic Hybrid Coordinate Ocean Model (HYCOM) to include both local and deep-ocean forcing, particularly the Gulf of Mexico Loop Current (LC). An ensemble simulation of the WFS ROMS model is carried out under different wind forcings in order to estimate the error covariance of the model state vector and the covariance between ocean currents and winds. Radial currents measured by HF-Radar antennas near St. Petersburg and Venice, FL, are assimilated using this ensemble-based error covariance. Different assimilation techniques using a time-average ensemble, a filter to reduce surface-gravity waves and an extended state vector including wind stress were tested. Results of WFS ROMS model assimilating surface currents show an improvement of the model currents not only at the surface but also at depth. The LC is a highly unstable current which generates large anticyclones traveling to the West but also a series of smaller anticyclones and filaments moving to the East and affecting the West Florida shelf. An additional tracer is included in the model simulation to track the presence of LC water. With this tracer, the total amount of LC water reaching the shelf and its mechanism is studied. [less ▲]

Detailed reference viewed: 39 (1 ULg)
Peer Reviewed
See detailDécomposition spectrale stochastique pour une formulation intégrale du problème de diffraction d'onde
Gaignaire, R.; Geuzaine, Christophe ULg

in Proceedings of 6ème Conférence Européenne sur les Méthodes Numériques en Electromagnétisme (NUMELEC2008) (2008)

Detailed reference viewed: 13 (0 ULg)
Full Text
Peer Reviewed
See detailIntelligence qualitative dans la gestion de risque : rôle de la documentarisation et des Systèmes d’Organisation des Connaissances
Zacklad, Manuel; Cahier, Jean-Pierre; Bénel, Aurélien et al

in Prié, Yannick (Ed.) IC 2008: Ingénierie des connaissances 2008 (2008)

La prise en compte des informations qualitatives dans la gestion des situations à risque complexes doit contribuer au développement d’une branche, selon nous essentielle, des activités associées à la ... [more ▼]

La prise en compte des informations qualitatives dans la gestion des situations à risque complexes doit contribuer au développement d’une branche, selon nous essentielle, des activités associées à la veille stratégique, au renseignement et à la recherche d’information, que nous suggérons de nommer « intelligence qualitative ». Nous contribuons à la conception de solutions d’assistance au service de la rationalité documentaire et de l’intelligence qualitative dans le cadre de nos recherches sur le web socio-sémantique opérationnalisées dans la méta-sémiotique et le protocole HyperTopic. [less ▲]

Detailed reference viewed: 158 (15 ULg)
See detailKarst in het krijt van Limburg en ombeving
Lagrou, David; Dusart; Willems, Luc ULg

Poster (2008)

Detailed reference viewed: 26 (0 ULg)
Full Text
See detailSox10 is not necessary for auditory neurons survival
Breuskin, I; Bodson, M; Thelen, Nicolas ULg et al

Poster (2008)

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailEpidemiology of injuries in high-level youth sport in Luxembourg [Abstract]
Frisch, Anne ULg; Theisen, Daniel; Urhausen, Axel et al

in Knee Surgery, Sports Traumatology, Arthroscopy (2008), 16

Detailed reference viewed: 31 (2 ULg)
Peer Reviewed
See detailValidation of X-ray Micro-CT as Screening Tool for Bone Tissue Engineering Scaffolds
Kerckhofs, Greet ULg; Schrooten, Jan; Van Cleynenbreugel, Tim et al

Conference (2008)

Detailed reference viewed: 25 (3 ULg)
Full Text
Peer Reviewed
See detailThe impact of model-based therapeutics on glucose control in an intensive care unit
Hann, C. E.; Chase, J. G.; Desaive, Thomas ULg et al

in IFMBE Proceedings (2008), 22

This paper investigates the impact of fast parameter identification methods, which do not require any forward simulations, on model-based glucose control, using retrospective data in the Christchurch ... [more ▼]

This paper investigates the impact of fast parameter identification methods, which do not require any forward simulations, on model-based glucose control, using retrospective data in the Christchurch Hospital Intensive Care Unit. The integral-based identification method has been previously clinically validated and extensively applied in a number of biomedical applications; and is a crucial element in the presented model-based therapeutics approach. Common non-linear regression and gradient descent approaches are too computationally intense and not suitable for the glucose control applications presented. The main focus in this paper is on better characterizing and understanding the importance of the integral in the formulation and the effect it has on model-based drug therapy control. As a comparison, a potentially more natural derivative formulation which has the same computation speed advantages is investigated, and is shown to go unstable with respect to modelling error which is always present clinically. The integral method remains robust. © 2009 Springer Berlin Heidelberg. [less ▲]

Detailed reference viewed: 9 (0 ULg)
Peer Reviewed
See detailApplication of a data-interpolating variational analysis (DIVA) tool to physical and biogeochemical measurements covering the Black Sea
Joassin; Beckers, Jean-Marie ULg; Boicenco, L. et al

in Climate change in the Black Sea, hypthesis, observations, trends scenarios and mitigation strategy for the ecosystem (2008)

The European project SESAME (Southern European Seas: Assessing and Modelling Ecosystem changes) is dedicated to the assessment of ecological changes in the Mediterranean and Black seas during these last ... [more ▼]

The European project SESAME (Southern European Seas: Assessing and Modelling Ecosystem changes) is dedicated to the assessment of ecological changes in the Mediterranean and Black seas during these last decades. This assessment will be done by combining statistical analysis of available data and the development of a 3D hydrodynamical-biogeochemical model. Data available since 1960 for the Black Sea from the databases MEDAR and NATO have been completed with data provided by SESAME partners. These data sets have been analyzed using DIVA, a geostatistical analysis tool developed by the GHER laboratory of the University of Liège. The DIVA analysis relies on a finite element resolution, taking into account coastlines, sub-basins, and advection by ocean currents. DIVA analysis generates spatially interpolated fields for biogeochemical and physical variables. Outputs consist in sets of analysis as well as error fields, and colorimetric scaled maps related to several depth layers. Biogeochemical variables considered consist in measures of chlorophyll, inorganic nutrients concentration, and phytoplankton abundances; physical variables consist in temperature and salinity. These treatments of the Black sea data sets offer an overview of the global pattern of the Black sea biogeochemical structure, and its evolution through the time periods concerned by the project. The interpolated fields generated by the DIVA tool will be used to validate the outputs of the 3D hydrodynamical-biogeochemical model developed for the north-western shelf of the Black sea in the framework of SESAME. [less ▲]

Detailed reference viewed: 29 (3 ULg)
Full Text
See detailEvaluation du potentiel antioxydant et de la propriété antiproliférative de l’huile essentielle d’armoise blanche du Maroc oriental
Imelouane, B.; Amjamdi, H.; Dubois, J. et al

Poster (2008)

La présente communication est consacrée à l’étude du pouvoir antioxydant de l’huile essentielle de l’armoise blanche. Les résultats obtenus montrent qu’effectivement l’huile essentielle de l’armoise et ... [more ▼]

La présente communication est consacrée à l’étude du pouvoir antioxydant de l’huile essentielle de l’armoise blanche. Les résultats obtenus montrent qu’effectivement l’huile essentielle de l’armoise et riche en antioxydant et inhibe le développement de quelques lignées cellulaires. [less ▲]

Detailed reference viewed: 112 (2 ULg)
Peer Reviewed
See detailProbabilistic Pose Recovery Using Learned Hierarchical Object Models
Detry, Renaud ULg; Pugeault, Nicolas; Piater, Justus ULg

in International Cognitive Vision Workshop (Workshop at the 6th International Conference on Vision Systems) (2008)

Detailed reference viewed: 22 (3 ULg)
See detailAnalyse quantitative par spectroscopie proche infrarouge: Application au test d'unifomité de teneur des comprimés
Ginot, Y. M.; Bernard-Moulin, P.; Cinier, R. et al

Conference (2008)

La spectroscopie Proche infrarouge présente un large potentiel d'applications dans l'industrie pharmaceutique par sa capacité à transmettre des informations reliées à la fois à la structure chimique des ... [more ▼]

La spectroscopie Proche infrarouge présente un large potentiel d'applications dans l'industrie pharmaceutique par sa capacité à transmettre des informations reliées à la fois à la structure chimique des échantillons et à leur état physique. Elle peut être mise à profit pour des analyses qualitatives, telles l'identification des matières premières, et également pour des analyses quantitatives telles le dosage d'un principe actif dans un comprimé. Avec pour avantage une rapidité inégalée pour délivrer un résultat comparée aux techniques classiques en vigueur. Attrayante par ses performances, cette spectroscopie nécessite cependant une prise en main qui doit respecter une démarche minutieuse et souvent déroutante par son aspect heuristique (allers-retours) et à la mise en oeuvre d'outils d'analyse statistique multivariée. Si de nombreuses publications témoignent de la puissance de cet outil, il est apparu opportun de rassembler en un même texte la démarche de développement à suivre et les repères à connaître pour permettre son utilisation en analyse quantitative dans un contexte de libération pharmaceutique. Le travail de cette commission a été de rassembler les éléments issus de la pratique industrielle en se concentrant sur l'un des essais les plus intéressants: celui de l'uniformité de teneur des comprimés. Ce test est en effet l'une des applications où la rapidité de mise en oeuvre est le plus appréciable, tout en étant celui qui peut poser le plus de questions quant à la validité des résultats et la prise de décision pharmaceutique. [less ▲]

Detailed reference viewed: 383 (8 ULg)
Full Text
Peer Reviewed
See detailDigital Cooperative Studio 07-08
Kubicki, Sylvain; Bignon, Jean-Claude; Elsen, Catherine ULg et al

in Pawar, Kulwant S.; Gonçalves, Ricardo; Thoben, Klaus-Dieter (Eds.) Proceedings of the 14th International Conference on Concurrent Enterprising : ICE 2208, A New Wave of Innovation in Collaborative Networks (2008)

Teaching cooperation-related issues to AEC (Architecture, Engineering and Construction) students is a major stake nowadays. There are many reasons for that: construction projects become more and more ... [more ▼]

Teaching cooperation-related issues to AEC (Architecture, Engineering and Construction) students is a major stake nowadays. There are many reasons for that: construction projects become more and more complex and cooperation practices are evolving in both organizational and IT-based ways. It is notably for these reasons that the issue of IT is addressed in most of the AEC-oriented schools and universities. Traditionally IT is taught to support the tasks of each specific construction field (e.g. CAD for architects, simulation tools for static engineers etc.). The Digital Cooperative Studio, presented in this article, considers IT as a support to cooperation and especially its communication and coordination dimensions. Moreover, we describe here a living lab involving students, teachers and researchers. This strong link between research and teaching allows both the students to be “analysts” of their real project situations and the researchers to experiment their development in real project situations. [less ▲]

Detailed reference viewed: 82 (17 ULg)
Full Text
Peer Reviewed
See detailMetabolic Acidosis during Intracranial Surgery under Propofol or Sevoflurane Anesthesia
Schaub, Isabelle; Bonhomme, Vincent; Demoitie, Jeannick et al

in Anesthesiology (2008), 109(A475), 475

Detailed reference viewed: 9 (0 ULg)
See detailTotal Electron Content monitoring using triple frequency GNSS data: a three-step approach
Spits, Justine; Warnant, René ULg

Conference (2008)

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailAn adapted eccentric training in the management of chronic lateral epicondylar tendinopathy
Croisier, Jean-Louis ULg; Foidart-Dessalle, Marguerite ULg; Crielaard, Jean-Michel ULg et al

in Abstract book of 13th Annual Congress of the European College of Sport Science (2008)

Detailed reference viewed: 32 (5 ULg)
Peer Reviewed
See detailApplication of an electromagnetic modeling method for railway grounding systems subjected to lightning strikes
Jacqmaer, P.; Geuzaine, Christophe ULg; Driesen, J.

in 13th International Conference on Harmonics and Quality of Power (ICHQP XIII) (2008)

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailVapor phase doping with N-type dopant into silicon by atmospheric pressure chemical vapor deposition
Takeuchi, Shotaro; Nguyen, Ngoc Duy ULg; Leys, Frederik et al

in 214th ECS Meeting, 2008 (2008)

Detailed reference viewed: 13 (2 ULg)
Peer Reviewed
See detailGetDP: a general finite-element solver for the de Rham complex
Geuzaine, Christophe ULg

in PAMM Volume 7 Issue 1. Special Issue: Sixth International Congress on Industrial Applied Mathematics (ICIAM07) and GAMM Annual Meeting, Zürich 2007 (2008)

Detailed reference viewed: 35 (2 ULg)
Full Text
Peer Reviewed
See detailOn the use of diffusion equations to model the acoustics of coupled rooms
Billon, Alexis ULg; Valeau, Vincent; Picaut, Judicaël et al

in Journal of the Acoustical Society of America (2008), 123(5), 3910-3910

he acoustics of coupled rooms are characterized by energy exchanges through apertures and/or partition walls. The use of systems of diffusion equations allows to predict the temporal and spatial energy ... [more ▼]

he acoustics of coupled rooms are characterized by energy exchanges through apertures and/or partition walls. The use of systems of diffusion equations allows to predict the temporal and spatial energy distributions in these configurations quite accurately. In this presentation, the diffusion formalism for room acoustics-prediction is summarized. The systems of equations to be solved in the case of coupling through an aperture and through a partition wall are presented. For two rooms coupled through an aperture (two classrooms connected through an open door), the results obtained with the diffusion model are compared to experimental data, in terms of sound pressure levels and sound decays. On the other hand, for the case of two classrooms connected through a partition wall, the diffusion model is compared to experimental data in terms of sound pressure level difference only. Finally, an engineering application is presented in the configuration involving a workroom including multiple sound sources (e.g., machines) connected to offices through open and closed doors. [less ▲]

Detailed reference viewed: 31 (1 ULg)
Full Text
Peer Reviewed
See detailLe second résident néerlandais en Ardenne, un étranger parmi d‘autres
Schmitz, Serge ULg

in Diry, Jean-Paul (Ed.) Les étrangers dans les campagnes, Actes du colloque franco-britanique de géographie rurale (2008)

The paper underlines the diversity of the motivations of second homes owners and replaces this diversity in the new ways of living the countryside. The analysis of the distribution of second homes in ... [more ▼]

The paper underlines the diversity of the motivations of second homes owners and replaces this diversity in the new ways of living the countryside. The analysis of the distribution of second homes in Belgium may be enlightening by a Multiple Regression Model combining the subjective quality of environment and the home prices. From this step, the research analyses the diversity of the strategies of localisation in Ardennes and quests for the diversity of appropriation. In place of the common idea of regional space consumption by the Dutch holidaymakers, the paper underlines the involvement of “strangers” in the local community and compares these involvements with those from the other inhabitants like commuters and crossborder workers. [less ▲]

Detailed reference viewed: 101 (18 ULg)
Peer Reviewed
See detailHistoires parallèles de la sculpture moderne
Bawin, Julie ULg

Conference (2008)

Detailed reference viewed: 12 (0 ULg)
Peer Reviewed
See detailMechanical characterization of porous structures by the combined use of micro-CT and in-situ loading
Kerckhofs, Greet ULg; Schrooten, Jan; Elicegui, Laida et al

Conference (2008)

Detailed reference viewed: 13 (2 ULg)
Full Text
Peer Reviewed
See detailNew Trends in Computing Anticipatory Systems : Emergence of Artificial Conscious Intelligence with Machine Learning Natural Language
Dubois, Daniel ULg

in Dubois, Daniel (Ed.) COMPUTING ANTICIPATORY SYSTEMS (2008)

This paper deals with the challenge to create an Artificial Intelligence System with an Artificial Consciousness. For that, an introduction to computing anticipatory systems is presented, with the ... [more ▼]

This paper deals with the challenge to create an Artificial Intelligence System with an Artificial Consciousness. For that, an introduction to computing anticipatory systems is presented, with the definitions of strong and weak anticipation. The quasi-anticipatory systems of Robert Rosen are linked to open-loop controllers. Then, some properties of the natural brain are presented in relation to the triune brain theory of Paul D. MacLean, and the mind time of Benjamin Libet, with his veto of the free will. The theory of the hyperincursive discrete anticipatory systems is recalled in view to introduce the concept of hyperincursive free will, which gives a similar veto mechanism: free will as unpredictable hyperincursive anticipation The concepts of endo-anticipation and exo-anticipation are then defined. Finally, some ideas about artificial conscious intelligence with natural language are presented, in relation to the Turing Machine, Formal Language, Intelligent Agents and Mutli-Agent System. [less ▲]

Detailed reference viewed: 887 (18 ULg)
Full Text
Peer Reviewed
See detailPreferential transmission of Gossypium sturtanium chromosome fragments in the progeny of [(G. hirsutum x G. raimondii)2 x G. sturtanium] trispecies hybrid
Benbouza, H.; Diouf F.B.H.; Ndir, K. et al

in Proceedings of World cotton research conference IV (2008)

Detailed reference viewed: 32 (3 ULg)
See detailForesterie communautaire : les silences de la loi gabonaise
Vermeulen, Cédric ULg

Conference (2008)

Detailed reference viewed: 20 (2 ULg)
Full Text
See detailMicrolensing in binary systems
Ricci, Davide ULg

(2008)

We present an easy way to simulate and fit light curves of microlensing events for the particular case of binary stellar systems with occultation, using semi-automatic graphical interfaces written in IDL ... [more ▼]

We present an easy way to simulate and fit light curves of microlensing events for the particular case of binary stellar systems with occultation, using semi-automatic graphical interfaces written in IDL language. Gravitational microlensing effects are known to induce light amplifications of the background source and, until now, photometry has been the main technique used to study this phenomenon. A good software, capable to fit multiple parameters of the observed light curve of the microlens event, would allow astronomers to obtain important informations about the physical characteristics of the objects studied. The developpement of such a software is focused to some peculiar case, briefly treated in Sec. 1. The software, written following the parametrization described in Sec. 2, is presented in Sec. 3 and 4. [less ▲]

Detailed reference viewed: 22 (8 ULg)
Full Text
See detailTransabdominal ultrasonography and the diagnosis of peritoneal and digestive tract disease in the horse
Busoni, Valeria ULg

in XIV SIVE / FEEVA Congress Proceedings (2008)

Detailed reference viewed: 22 (3 ULg)
Full Text
See detailHolocene Records of Aerosols in Continental Environments (HoRACE)
Le Roux; De Vleeschouwer, F.; Cherbukin et al

Conference (2008)

Detailed reference viewed: 7 (1 ULg)
Full Text
Peer Reviewed
See detailExploiting tree-based variable importances to selectively identify relevant variables
Huynh-Thu, Vân Anh ULg; Wehenkel, Louis ULg; Geurts, Pierre ULg

in JMLR: Workshop and Conference Proceedings (2008), 4

Detailed reference viewed: 114 (38 ULg)
Peer Reviewed
See detailCauses of death of harbor porpoises (Phocoena phocoena) stranded on the Dutch coast
Jauniaux, Thierry ULg; Bergerie, H.; Camphuysen, K. et al

in proceeding of the annual conference (2008)

Detailed reference viewed: 18 (1 ULg)
Full Text
See detailCarbon and Nitrogen Isotopic Ratios in Comets
Jehin, Emmanuel ULg; Manfroid, Jean ULg; Hutsemekers, Damien ULg et al

in LPI contribution 1405 (2008)

Detailed reference viewed: 43 (3 ULg)
Full Text
Peer Reviewed
See detailEffect of the sowing date on physicochemical and fonctional properties of native starches extracted from European soft wheat (Triticum aestivum L.)
Massaux, Carine; Sindic, Marianne ULg; Paridaens, A.-M. et al

in Weegels, P. L.; Courtin, C. M.; Arrachid, A. (Eds.) et al Consummer driven cereal innovation: where science meets industry (2008)

Detailed reference viewed: 13 (1 ULg)
Full Text
See detailLes dédicaces latines des motets et "Sacrae Cantiones" de René del Mel
Corswarem, Emilie ULg

in Bossuyt, Ignace; Gabriëls, Nele; Sacré, Dirk (Eds.) et al Cui dono lepidum novum libellum ? Dedicating Latin Works and Motets in the Sixteenth Century Theory and Practice (2008)

Detailed reference viewed: 23 (2 ULg)
Full Text
Peer Reviewed
See detailDaughters Taking Over the Family Business : A Gender Analysis
Constantinidis, Christina ULg; Cornet, Annie ULg

in Dunsby, Brian L. (Ed.) 31st Institute for Small Business and Entrepreneurship Conference : International Entrepreneurship - Promoting Excellence in Education, Research and Practice, Conference CD, 5th-7th November 2008, Belfast, N. Ireland (2008)

This paper investigates the succession process as perceived and lived by daughters taking over the family business, with a gender perspective. Despite the rich literature on the succession process in ... [more ▼]

This paper investigates the succession process as perceived and lived by daughters taking over the family business, with a gender perspective. Despite the rich literature on the succession process in family firms, few studies use a gender approach, though an increasing number of ventures are launched, taken over and managed by women, largely contributing to the economic development. In line with Dumas (1998), Barbot et al. (2005) and Vera & Dean (2005), our research aims at analyzing the succession process when daughters take over the family business. Our contribution is a gender analysis of the process, including the social phenomena of separation and hierarchy, with a focus on family composition. Using the model of Cadieux et al. (2000), we identify at each stage of the succession process, the key actors of the environment, we analyze their interactions and see how they open opportunities or rise difficulties in terms of legitimacy for daughters. The qualitative thematic analysis of eleven detailed case studies reveals a strong influence of the presence or absence of a son on the motivations and positioning of daughters, as well as on the construction of their legitimacy towards family and stakeholders. This study leads to several implications for public and private initiatives. [less ▲]

Detailed reference viewed: 166 (13 ULg)
Peer Reviewed
See detailMechanical quantification of porous structures by the combined use of micro-CT and in-situ loading
Kerckhofs, Greet ULg; Schrooten, Jan; Elicegui, Laida et al

in Proceedings book WCNDT 2008 (2008)

Detailed reference viewed: 9 (1 ULg)
Peer Reviewed
See detailEvaluation clinique et cytologique de l’inflammation chez des chevaux atteints de maladie inflammatoire des petites voies respiratoires
Richard, E.; Fortier, G.; Dupuis, M. C. et al

in Proceedings: 36èmes Journées AVEF (2008)

Detailed reference viewed: 46 (5 ULg)
Full Text
Peer Reviewed
See detailPietätlose Rezeption? – Elfriede Jelineks Umgang mit der Tradition in „Die Kinder der Toten“.
Pontzen, Alexandra ULg

in Müller, Sabine; Theodorsen, Cathrin (Eds.) Elfriede Jelinek – Tradition, Politik und Zitat. (2008)

Detailed reference viewed: 49 (5 ULg)
Full Text
Peer Reviewed
See detailTowards high performance virtual routers on commodity hardware
Egi, N.; Greenhalgh, A.; Handley, M. et al

in Proceedings of the 2008 ACM CoNEXT Conference (2008)

Detailed reference viewed: 11 (1 ULg)
Peer Reviewed
See detailPotential implication of host/symbiont recognition mechanisms in coral bleaching
Vidal-Dupiol, Jérémie; Mitta, Guillaume; Roger, Emmanuel et al

Poster (2008)

Bleaching in corals can be attributed to loss of endosymbiotic zooxanthellae and/or loss of photosynthetic pigments within zooxanthellae. This major disturbance of the reef ecosystem is principally ... [more ▼]

Bleaching in corals can be attributed to loss of endosymbiotic zooxanthellae and/or loss of photosynthetic pigments within zooxanthellae. This major disturbance of the reef ecosystem is principally induced by increases in water temperature. Since the beginning of the 80ís and the onset of global climate change, this phenomenon has been occurring at increasing rates and scales, and with increasing severity. In this study, we focused on finding early regulated genes involved in bleaching. In aquaria, one set of Pocillopora damicornis nubbins was subjected to a gradual seawater temperature increase from 28°C to 32°C over 15 days, and a second control set remained at constant temperature (28°C). Bleaching was monitored by measuring zooxanthellae density. The mRNA differentially expressed between the stressed state (sampled just before the onset of bleaching) and the non stressed state (control) were isolated from the nubbins by Suppression Subtractive Hybridization. The corresponding cDNA were sequenced and confronted to sequence databases to obtain gene similarities. Finally, transcription rates of the most interesting genes were conducted by Q-PCR. Two particularly interesting candidate genes showed an important decrease in their transcription rates following thermal stress and before zooxanthellae loss. These two genes show similarities with genes involved in host/symbiont and host/parasite models. The implication of these molecular actors suggests a possible role of recognition mechanisms between the host and its symbiont, in the breakdown of the symbiosis during the bleaching phenomenon. Experiments such as RACE-PCR, in situ hybridization and immunohistochemistry are currently underway to confirm our hypotheses. [less ▲]

Detailed reference viewed: 35 (3 ULg)
Peer Reviewed
See detailComparison of T1 and T2 - weighted and Blade MRI sequences for examination of canine normal abdomen
Hoffmann; Buttin; Haye et al

Poster (2008)

Detailed reference viewed: 57 (1 ULg)
Full Text
See detailEvolution de l’économie agricole en Province de Liège
Duquesne, Brigitte ULg

Conference (2008)

Detailed reference viewed: 21 (9 ULg)
Full Text
Peer Reviewed
See detailAgreement between two independent groups of raters
Vanbelle, Sophie ULg

Poster (2008)

Detailed reference viewed: 9 (2 ULg)
Full Text
See detailReliable Design of Physical and Reactive Extraction Based on Simple Lab-Scale Experiments
Pfennig, Andreas ULg

in Solvent Extraction: Fundamentals to Industrial Applications. Proceedings of the ISEC 2008 International Solvent Extraction Conference : Tucson 16-19 septembre 2008 (2008)

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detailChanges in plankton dynamics and biodiversity in the oligotrophic Bay of Calvi (Corsica, Northwestern Mediterranean): response to climate change
Goffart, Anne ULg; Hecq, Jean-Henri ULg

Conference (2008)

The development of the winter-spring phytoplankton bloom is investigated in the Bay of Calvi (Corsica, Ligurian Sea, Northwestern Mediterranean) since 1979. A drastic reduction of phytoplankton biomass is ... [more ▼]

The development of the winter-spring phytoplankton bloom is investigated in the Bay of Calvi (Corsica, Ligurian Sea, Northwestern Mediterranean) since 1979. A drastic reduction of phytoplankton biomass is evidenced over the last three decades. Changes in phytoplankton dynamics and biodiversity are discussed in relation to long-term changes in wind stress, NAO conditions and environmental conditions. As a consequence, time-series results enlighten that the entire food web dynamics is affected and that ecosystem resilience is threatened. [less ▲]

Detailed reference viewed: 48 (4 ULg)
Full Text
Peer Reviewed
See detailA distinctive marginal marine palynological assemblage from the Pridoli of Northwestern Saudi Arabia
Al-Hajri, S.; Verniers, J.; Paris, F. et al

Conference (2008)

This paper describes a rare occurrence of a rich and diverse palynological assemblage from a controversial stratigraphic unit in well EW8 in northwestern Saudi Arabia. The composition of this assemblage ... [more ▼]

This paper describes a rare occurrence of a rich and diverse palynological assemblage from a controversial stratigraphic unit in well EW8 in northwestern Saudi Arabia. The composition of this assemblage strongly suggests a Pridoli age and therefore it is referred here to the Tawil Formation. The assemblage encountered contains very characteristic chitinozoans, acritarchs, tasmanities, scolecodontsm, eurypterid cuticle and common land-derived miospores and hilate cryptospores. Chitinozoans such as Margachitina elegans, Ancyrochitina fragilis brevis, Ancyrochitina fragilis, Sphaerochitina sphaerocephala, Urnochitina urna, Pseudochlathrochitina carmenchui and Lagenochitina brevicollis confer the Pridoli age assignment. This assemblage of chitinozoans correlates very well with Assemblage D from the Alternances Gréso-Argileuses Formation of the A1-61 well in northwestern Libya. Among the acritarchs present are: Cymbosphaeridium pilar, Leoniella carminae,Diexallophasis spp., Tunisphaeridium cf caudatum, Leiofusa estrecha and Eupoikilofusa striatifera. <br /> <br />Furthermore, the join occurrence of U. urna, P. carmenchui and M. elegans is clearly indicative of the middle part of the Pridoli as in the Libyan well A1-61, and in many wells in Algeria. This corresponds to what is considered to be a transgressive mid Pridoli event in the Algerian Sahara, with non marine intervals bracketing this brief marine sea level rise. This event is likely to have extended into all of north Gondwana including Arabia. [less ▲]

Detailed reference viewed: 45 (3 ULg)
Full Text
Peer Reviewed
See detailAdiabatic decoupling of the reaction coordinate
Lorquet, Jean-Claude ULg

in International Journal of Quantum Chemistry (2008), 108(10), 1629-1636

When the dynamics is constrained by adiabatic invariance, a reactive process can be described as a one-dimensional motion along the reaction coordinate in an effective potential. This simplification is ... [more ▼]

When the dynamics is constrained by adiabatic invariance, a reactive process can be described as a one-dimensional motion along the reaction coordinate in an effective potential. This simplification is often valid for central potentials and for the curved harmonic valley studied in the reaction path Hamiltonian model. For an ionolecule reaction, the action integral < Pθ> = (1/2π){clockwise contour integral}P θdθ is an adiabatic invariant. The Poisson bracket of <Pθ>2 with Hamiltonians corresponding to a great variety of long-range electrostatic interactions is found to decrease with the separation coordinate r, faster than the corresponding potential. This indicates that the validity of the adiabatic approximation is not directly related to the shape of the potential energy surface. The leading role played by the translational momentum is accounted for by Jacobi's form of the least action principle. However, although the identification of adiabatic regions by this procedure is limited to a specific range of coordinate configurations, equivalent constraints must persist all along the reaction coordinate and must operate during the entire reaction, as a result of entropy conservation. The study of the translational kinetic energy released on the fragments is particularly appropriate to detect restrictions on energy exchange between the reaction coordinate and the bath of internal degrees of freedom. ©2008 Wiley Periodicals, Inc. [less ▲]

Detailed reference viewed: 10 (1 ULg)
Peer Reviewed
See detailStrained silicon on wafer level by wafer bonding: materials processing, strain measurements and strain relaxation
Reiche, M.; Moutanabbir, O.; Himcinschi, C. et al

Conference (2008)

Detailed reference viewed: 31 (1 ULg)
Full Text
Peer Reviewed
See detailDCDS - Distant Collaborative Design Studio. An Initial Experimentation in Distant Collaborative Design Studio in Architecture.
Elsen, Catherine ULg; Juchmes, Roland ULg; Kubicki, Sylvain et al

in Muylle, Marc (Ed.) Architecture "in computero", Integrating Methods and Techniques. Proceedings of the 26th eCAADe Conference on Education and Research in Computer Aided Architectural Design in Europe. (2008)

This paper introduces new supporting tools in the field of distant collaborative design, namely DCDS and CRTI-weB. These prototypes respectively support: the early stages of design, through the support of ... [more ▼]

This paper introduces new supporting tools in the field of distant collaborative design, namely DCDS and CRTI-weB. These prototypes respectively support: the early stages of design, through the support of the crucial initial step of free-hand sketches shared in real-time, and the asynchronous collaborative activities. The main goal of this paper is to propose the use of these innovative tools as an efficient and realistic way of managing long distance collaboration, to effectively serve the designers’ needs. This proposition is analyzed and questioned through a real-size experiment featuring 30 architecture and architectural-engineering students, working together in real-time in different locations (Belgium and France). This experiment and the necessary survey open up interesting fields of investigation, such as the relevance of the proposed devices in supporting distant collaborative design in architecture and the benefit this represents for students to merge the IT aspects and the design studio. The methodology and the replicability are analyzed to increase the level and quality of formation of our students and, finally, a critique of the tools confirms a benefit for the developing teams. [less ▲]

Detailed reference viewed: 148 (20 ULg)
See detailThermocline characterization on modeled and observed temperature profiles: a technique for model error evaluation
Alvera Azcarate, Aïda ULg; Barth, Alexander ULg; Beckers, Jean-Marie ULg

Conference (2008)

The thermocline position in the water column is an important variable in hydrodynamic modeling. Its characterization allows to verify the model accuracy, and analyze the parameter choice made by the ... [more ▼]

The thermocline position in the water column is an important variable in hydrodynamic modeling. Its characterization allows to verify the model accuracy, and analyze the parameter choice made by the modeler, such as the choice of the turbulence closure. A correct representation of the surface ocean boundary layer is also very important in order to correctly represent the air-sea exchanges. Moreover, coupled physicalbiological models require a good representation of the thermocline position, in order to correctly represent the population dynamics at the surface layers. We present a technique to calculate the parameters of the thermocline: depth, width and temperature. These are calculated by a least-squares fitting of individual temperature profiles (from model and observations) to a sigmoid function. The residual is also obtained, giving an estimate of the goodness of the fit. The parameters calculated allow for a comparison of the model thermocline to observations. Our approach consists in comparing the model thermocline depth, width and temperature to observations. By examining separately the accuracy of the model thermocline depth and temperature, we gain insight in the processes that need correction in the model. For example, if the model thermocline is too deep compared to observations, or the width of the thermocline is incorrect, mixing parameters and surface momentum fluxes should be revised. However, if the depth is well represented but the temperature is incorrect, the surface heat fluxes may be the source of the error. By simply comparing model and observed temperature profiles we are not able to differentiate between error sources. The technique presented here stands therefore as a useful method for model evaluation. [less ▲]

Detailed reference viewed: 54 (3 ULg)
Peer Reviewed
See detailEssential fatty acids content in beef meat as influenced by crushed, flaked or extruded linseeds
Robaye, Vincent ULg; Dotreppe, Olivier ULg; Cabaraux, Jean-François ULg et al

in book of abstract of the 59th Annual meeting of the European Association for Animal Production (2008)

Detailed reference viewed: 28 (2 ULg)
Full Text
Peer Reviewed
See detailIs there a difference in hypertension screening and care in urban population vs rural company in the Democratic Republic of Congo (DRC)?
Sumali, E. K.; Nseka, N. M.; Zinga, C. V. et al

in Hypertension (2008), 26

Detailed reference viewed: 19 (5 ULg)
See detailAIRE role in melanoma
Conteduca, Giuseppina ULg

Poster (2008)

Polymorphisms of AIRE, a transcription factor that up-regulates intrathymic expression of tissue-specific antigens including melanoma-associated antigens (MAAs), may variably affect the selection of MAAs ... [more ▼]

Polymorphisms of AIRE, a transcription factor that up-regulates intrathymic expression of tissue-specific antigens including melanoma-associated antigens (MAAs), may variably affect the selection of MAAs-specific thymocytes, generating T-cell repertoires protecting or predisposing individuals to melanoma. We found that AIRE single nucleotide polymorphisms (SNPs) rs1055311, rs1800520 and rs1800522 were significantly more frequent in healthy subjects than in melanoma patients, independently from sex, age and stages of melanoma. The presence of these SNPs was associated with increased frequency of two T-cell clonotypes specific for MAGE-1 linking their protective effect to selection/expansion of MAA-specific T cells. Interestingly, mRNA transcribed on the rs1800520 SNP showed increased free energy than the wild type suggesting that its reduced stability may be responsible for the different activity of the polymorphic AIRE molecule. This finding may contribute at identifying subjects with increased risk of developing melanoma or patients with melanoma that may take benefit from immunotherapy. [less ▲]

Detailed reference viewed: 10 (0 ULg)
Peer Reviewed
See detailContrastief taalonderzoek geïntegreerd aanpakken: hoe en waarom?
Rasier, Laurent ULg; Hiligsmann, Philippe; Baelen, Mélanie et al

Poster (2008)

Detailed reference viewed: 13 (3 ULg)
Full Text
See detailAstrobiology : origin, evolution and distribution of life in the universe
Javaux, Emmanuelle ULg

in CAPAS Bulletin de l'Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique. Sciences (2008)

Detailed reference viewed: 22 (2 ULg)
Full Text
Peer Reviewed
See detailA damage/repair model for alveolar bone remodeling
Mengoni, Marlène ULg; Ponthot, Jean-Philippe ULg

in Middleton; Evans; Holt (Eds.) et al 8th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering : CMBBE2008, Porto, Porugal (2008)

Detailed reference viewed: 69 (19 ULg)
Full Text
See detailNitrogen Isotope Ratios in Comets. ESO Astrophysics Symposia
Cochran, Anita L; Jehin, Emmanuel ULg; Manfroid, Jean ULg et al

in Precision Spectroscopy in Astrophysics (2008)

Detailed reference viewed: 14 (0 ULg)
Full Text
See detailOptical Spectroscopy of the B and C Fragments of Comet 73P/Schwassmann-Wachmann 3 at the ESO VLT
Jehin, Emmanuel ULg; Manfroid, Jean ULg; Kawakita, H. et al

in LPI contribution 1405 (2008)

Detailed reference viewed: 28 (3 ULg)
Full Text
Peer Reviewed
See detailA far infrared/terahertz micromechanical sensor based on surface plasmons resonance
Hastanin, Juriy ULg; Renotte, Yvon ULg; Fleury-Frenette, Karl ULg et al

in Proceedings of SPIE (2008), 7113

This paper describes a new concept related to the bolometric micromechanical sensors for detecting far IR and THz radiation. We believe that this concept permits a low cost and ease of fabrication of ... [more ▼]

This paper describes a new concept related to the bolometric micromechanical sensors for detecting far IR and THz radiation. We believe that this concept permits a low cost and ease of fabrication of large bi-dimensional array of sensors with an enhanced signal-to-noise ratio. The micromechanical sensor comprises a thermo-sensitive bi-material (multimaterial) micro-cantilever beam with a selective absorber dedicated to far IR and THz radiation energy, and optical readout system based on surface plasmon resonance for detecting the bending of the micro-cantilever element. To increase the radiation detector sensitivity, the SPR phenomenon is used for cantilever deflection monitoring. [less ▲]

Detailed reference viewed: 118 (21 ULg)
Full Text
See detailLa gestion de la ripisylve : focus sur l'aulne
Mouchet, Frédéric; Debruxelles, Natacha; Claessens, Hugues ULg

in LAMBOT, Francis (Ed.) La gestion physique des cours d'eau. Bilan d'une décennie écologique (2008)

Detailed reference viewed: 44 (5 ULg)
See detailLe droit scolaire
Maréchal, Benoît ULg

Conference (2008)

Seminar on the rights and duties at school and the admninistrative proceedings in case of litigation.

Detailed reference viewed: 107 (0 ULg)
Full Text
Peer Reviewed
See detailAssessment of Eurocode 5 charring rate calculation methods
Cachim, Paulo; Franssen, Jean-Marc ULg

in Proceedings of the Fifth International Conference Structures in Fire (2008)

The basic hypothesis for the assessment of fire resistance of wood structures is that for temperatures above 300 ºC, wood is no longer able to sustain any load. Consequently, the determination of the ... [more ▼]

The basic hypothesis for the assessment of fire resistance of wood structures is that for temperatures above 300 ºC, wood is no longer able to sustain any load. Consequently, the determination of the location of the 300 ºC isotherm, the charring depth, is decisive for the result of fire resistance calculation methods. Charring rate of wood is dependent of numerous factors, such as wood species (density, permeability or composition), moisture or direction of burning (along or across the grain). Eurocode 5, Part 1-2, presents several methods for the calculation of fire resistance of timber structures that are divided into simplified and advanced. In this paper simplified and advanced methods are compared regarding the calculation of the charring depth. Finite element simulations have been performed, using the proposed wood properties of Eurocode 5 using finite element code SAFIR. The influence of parameters such as wood density, moisture or anisotropy has been investigated. The results obtained with finite element calculations were then compared with Eurocode 5 simplified models. Some inconsistencies between methods have been observed. This paper presents proposals to overcome some of the inconsistencies as well as to extend the applicability of the models. [less ▲]

Detailed reference viewed: 132 (3 ULg)
Full Text
See detailThe effects of cognitive remediation therapy on AM deficits in schizophrenia patients
Boulanger, Marie ULg; Collet, Denis; Cornet, Lidvine et al

Poster (2008)

Schizophrenia is accompanied by deficit in autobiographical memories (AM). These impairments are correlated to difficulties in imagining specific events that might happen to them in the future ... [more ▼]

Schizophrenia is accompanied by deficit in autobiographical memories (AM). These impairments are correlated to difficulties in imagining specific events that might happen to them in the future (D’Argembeau, Raffard et Van-der-Linden, 2008). Previous study suggested that the specific autobiographical memory (past and future) may be improved by an AM remediation therapy (Blairy et al., accepted). The aim of the present study was to compare performances from individuals involved in an AM remediation intervention to individuals involved in the cognitive remediation therapy program from Brenner (IPT) (Pomini, Neis, Brenner, Hodel et Roder, 1998). The results showed that the participants tend to recall more specific events after therapies, confounded pass and future events (t(7) = 3.28 ; p = .013). These results would be promising for future research. [less ▲]

Detailed reference viewed: 39 (1 ULg)
Full Text
See detailProgrammes d’inventaire et de surveillance des invertébrés en Wallonie (objectifs, structure et résultats)
Dufrêne, Marc ULg; Barbier, Yvan; Fichefet, Violaine

Conference (2008)

Detailed reference viewed: 18 (2 ULg)
Peer Reviewed
See detailPhotodegradation of bacteria on TiO2 thin films produced by sol-gel method
Tasseroul, Ludivine ULg; Braconnier, Benoît; Nonet, Stéphane et al

Conference (2008)

Detailed reference viewed: 14 (3 ULg)
Full Text
Peer Reviewed
See detailStructural member behaviour and analysis in case of fire
Lopes, N.; Vila Real, P.; Uppfeldt, B. et al

in Mazzolani, Federico (Ed.) Proceedings of Urban Habitat Constructions under Catastrophic Events (COST Action C26) (2008)

Detailed reference viewed: 79 (7 ULg)
See detailThe nucleolus in reptiles: Ultrastructural studies
Lamaye, F; Thiry, Marc ULg

Poster (2008)

Detailed reference viewed: 1 (0 ULg)
Full Text
See detailIntercomparison of lead 210 and radiocarbon bomb pulse age models. A key study in a peat bog core from North Poland
Piotrowska, Natalia; De Vleeschouwer, François; Sikorski, Jaroslaw et al

Poster (2008)

Detailed reference viewed: 14 (4 ULg)
Full Text
Peer Reviewed
See detailRocking behaviour of prefabricated concrete frames subjected to earthquake action
Degée, Hervé ULg; Denoël, Vincent ULg

in Proceedings of ACOMEN 2008, Advanced Computational Methods in Engineering (2008)

Detailed reference viewed: 51 (10 ULg)
Peer Reviewed
See detailUnderstanding the Black Sea ecosystem functioning during the eutrophication phase using mathematical modelling
Grégoire, Marilaure ULg; Capet, Arthur ULg; Barth, Alexander ULg et al

in Moncheva, Snejana (Ed.) Climate change in the Black Sea, hypthesis, observations, trends scenarios and mitigation strategy for the ecosystem (2008)

Detailed reference viewed: 10 (8 ULg)
Full Text
Peer Reviewed
See detailHigh density resolution synchrotron radiation based X-ray microtomography (SR mu CT) for quantitative 3D-morphometrics in zoological sciences
Nickel, Michael; Hammel, Jörg U; Herzen, Julia et al

in Proceedings of SPIE (2008), 7078

Zoological sciences widely rely on morphological data to reconstruct and understand body structures of animals. The best suitable methods like tomography allow for a direct representation of 3D-structures ... [more ▼]

Zoological sciences widely rely on morphological data to reconstruct and understand body structures of animals. The best suitable methods like tomography allow for a direct representation of 3D-structures. In recent years, synchrotron radiation based X-ray microtomography (SR mu CT) placed high resolutions to the disposal of morphologists. With the development of highly brilliant and collimated third generation synchrotron sources, phase contrast SR mu CT became widely available. A number of scientific contributions stressed the superiority of phase contrast over absorption contrast. However, here we demonstrate the power of high density resolution methods based on absorption-contrast SR mu CT for quantitative 3D-measurements of tissues and other delicate bio-structures in zoological sciences. We used beamline BW2 at DORIS III (DESY, Hamburg, Germany) to perform microtomography on tissue and mineral skeletons of marine sponges (Porifera) which were shock frozen and/or fixed in a glutamate osmium tetroxide solution, followed by critical point drying. High density resolution tomographic reconstructions allowed running quantitative 3D-image analyses in Matlab and ImageJ. By applying contrast and shape rule based algorithms we semi-automatically extracted and measured sponge body structures like mineral spicules, elements of the canal system or tissue structures. This lead to a better understanding of sponge biology: from skeleton functional morphology and internal water flow regimes to body contractility. Our high density resolution based quantitative approach can be applied to a wide variety of biological structures. However, two prerequisites apply: (1) maximum density resolution is necessary; (2) edge effects as seen for example in phase outline contrast SR mu CT must not be present. As a consequence, to allow biological sciences to fully exploit the power of SR mu CT further increase of density resolution in absorption contrast methods is desirable. [less ▲]

Detailed reference viewed: 50 (0 ULg)
Peer Reviewed
See detailEffect of the content of partially hydrogenated oils on the physical and structural properties of bakery margarines
Cavillot, V; Danthine, Sabine ULg; Kervyn de meerendré, M. et al

Poster (2008)

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailFollow-up of Coll2-1, Coll2-1 NO2 and myeloperoxidase in dog after transection of the cruciate ligament of the knee
Henrotin, Yves ULg; Pelletier, JP; Martel-Pelletier, J et al

in Osteoarthritis and Cartilage (2008), 16(Suppl 4), 51

Detailed reference viewed: 16 (0 ULg)
Peer Reviewed
See detailLes figures de bourgeois dans le Roman de Guillaume d’Orange en prose
Henrard, Nadine ULg

in Moreno, Paola; Palumbo, Giovanni (Eds.) Autour du XVe siècle. Journées d'étude en l'honneur d'Alberto Vàravaro. (Liège, 10-11 mai 2004) (2008)

Detailed reference viewed: 38 (1 ULg)
Peer Reviewed
See detailMathematical modelling of bone regeneration during fracture healing
Geris, Liesbet ULg; VanderSloten@mech.kuleuven.be, Jos; VanOosterwyck, Hans

in proceedings of the OPTEC Topical Workshop on Parameter Estimation in Differential Equations (2008)

Detailed reference viewed: 8 (1 ULg)
Full Text
Peer Reviewed
See detailΟι μάγισσες της Θεσσαλίας: μια αρχαία παράδοση
Vanhaegendoren, Koen ULg

in 1ο Διεθνές Συνέδριο Ιστορίας και Πολιτισμού της Θεσσαλίας : Λάρισα, 9-11 Νοεμβρίου 2006 (2008)

Detailed reference viewed: 153 (0 ULg)