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See detailSmart drug delivery systems based on pH-sensitive ABC block vs star copolymers
Jérôme, Christine ULg

Conference (2009, November 09)

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See detailStudy of Carbon Fibre-Reinforced Magnesium Composites (Introduction to interfacial phenomenon)
Montrieux, Henri-Michel ULg; Lecomte-Beckers, Jacqueline ULg

Conference (2009, November 06)

Composite materials are known to combine interesting properties of different materials. This research concerns magnesium alloys reinforced by carbon fibres weaves. Such a material can theoretically ... [more ▼]

Composite materials are known to combine interesting properties of different materials. This research concerns magnesium alloys reinforced by carbon fibres weaves. Such a material can theoretically exhibit a yield strength/density ratio around 500 compared to ~200 for Ti6Al4V and ~125 for Al2024-T6. This composite is thought to be especially promising for aeronautics if interaction between fibres and magnesium can be controlled and optimized. The strategy studied to enhance interaction between matrix and fibres consists in covering a thin layer of carbide former metal (Zr, Ti) by PVD as a primary treatment of carbon weaves. This intermediate product can then be heated up between 300-700°C in an argon atmosphere in order to form stable carbides. The wetability of treated weaves by liquid magnesium is potentially higher because carbides are not fully covalent (partially metallic) and so they can have more interface interaction with liquid metals. Further crystal lattice parameters of particular carbides can be close to the ones of metal crystal lattices and interface energy can consequently be reduced when they form carbide-metal bonds. Furthermore magnesium is known for its high oxygen attraction and is able to reduce a lot metallic oxides. It is a key fact because liquid magnesium easy wets its oxide in certain conditions. [less ▲]

Detailed reference viewed: 74 (9 ULg)
See detailRecommendations from the BeFlex Plus Project and the Leuven/Louvain Conference
Dujardin, Jean-Marie ULg

Conference (2009, November 06)

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See detailLes perturbateurs endocriniens
Scippo, Marie-Louise ULg

Conference (2009, November 06)

Detailed reference viewed: 105 (43 ULg)
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See detailLe rôle des réseaux sociaux pour les femmes entrepreneures: Une lecture en termes de genre
Constantinidis, Christina ULg

Conference (2009, November 06)

Cet article explore la problématique des réseaux d’affaires chez les femmes entrepreneures sous l’angle du genre. Le but est d’appréhender leurs représentations et comportements et de comprendre les ... [more ▼]

Cet article explore la problématique des réseaux d’affaires chez les femmes entrepreneures sous l’angle du genre. Le but est d’appréhender leurs représentations et comportements et de comprendre les difficultés pouvant y être liées. Notre contribution est double. Nous identifions des facteurs participant à la construction des réseaux, avec un focus sur les représentations individuelles et contribuons à une explication par les réseaux des difficultés vécues. [less ▲]

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See detailThe impact of expectations on commitment of newcomers.
Bertrand, Françoise ULg; Tibbax, V.; Hansez, Isabelle ULg

Conference (2009, November 05)

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See detailProduction de viande - environnement : levons les équivoques !
Beckers, Yves ULg

Conference (2009, November 05)

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See detailViande « enrichie en oméga-3 » : quel risque pour la santé ?
Scippo, Marie-Louise ULg

Conference (2009, November 05)

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See detailLe développement de starters lactiques : de la cellule au produit fini
Thonart, Philippe ULg; Kouakou, P.; Dortu, C. et al

Conference (2009, November 02)

Detailed reference viewed: 49 (14 ULg)
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See detailHow can we predict difficulty in PISA reading items ? The process of describing item difficulty
Alderson, C.; De Jong, J.; Kirsch, I. et al

Conference (2009, November)

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See detailWhen molecular phylogeny meets medical sciences: Taxonomic problems among rat species in Southeast Asia
Pagès, Marie ULg

Conference (2009, November)

Background: Rodents are recognized as hosts for at least 60 zoonotic diseases and may represent a serious threat for human health. In the context of global environmental changes and increasing mobility of ... [more ▼]

Background: Rodents are recognized as hosts for at least 60 zoonotic diseases and may represent a serious threat for human health. In the context of global environmental changes and increasing mobility of humans and animals, contacts between pathogens and potential animal hosts and vectors are modified, amplifying the risk of disease emergence. An accurate identification of each rodent at a specific level is needed to understand their implications in the transmission of diseases. Among Muridae, the Rattini tribe encompasses 167 species inhabiting South East Asia, a hotspot of both biodiversity and, emerging and re-emerging diseases. The region faces growing economical development that affects habitats, biodiversity and health. Rat species have been demonstrated as main hosts of pathogens but are still difficult to recognize at a specific level using morphological criteria. DNA-barcoding methods appear as the only tool for accurate rat species identifications but their usefulness is hampered by the need of reliable identifications of reference specimens. To provide a rigorous systematic framework for epidemiological surveys, we used DNA data to explore the limits of the current taxonomy of the Rattini tribe. Results: As morphological characters are often misleading, we decided to use the DNA sequence information itself as the primary information source to establish group membership and estimate putative species boundaries. We sequenced two mitochondrial and one nuclear genes from 122 rat samples to perform phylogenetic reconstructions and applied the method developed by Pons and colleagues (2006) that determines with no a prior expectations, the locations of ancestral nodes defining putative species. To give an appropriate name to each cluster recognized as a valid species, we reviewed information from the literature and obtained sequences from a museum holotype specimen following all the ancient DNA criteria. One of the most striking results is that at least 6 putative species including a new cryptic one could exist among the Rattus rattus species group. Conclusions: Using a suitable methodology, this study succeeds in refining the taxonomy of one of the most difficult groups of mammals and lays the foundations to better investigate rodent-born diseases in South East Asia. Recognition of a new cryptic Rattus species in Southeast Asia could have serious implications for human health since each species is expected to have its own ecological traits and to carry its own set of diseases. To finish, first results based on independent nuclear DNA data (microsatellite loci) will be briefly exposed to demonstrate that defining species is not an easy task. [less ▲]

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See detailChylothorax in cats
Hamaide, Annick ULg

Conference (2009, November)

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See detailFlamelet-based model for supersonic combustion
Terrapon, Vincent ULg

Conference (2009, November)

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See detailFemmes, Finance et Responsabilités : quels sont les facteurs explicatifs de la faible représentation des femmes occupant un poste financier à responsabilités?
Grodent, Françoise ULg

Conference (2009, November)

Par cette communication, nous avons essayé d’identifier les raisons de la faible proportion des femmes occupant un poste à responsabilités, soit financier dans une organisation quelconque, soit au sein ... [more ▼]

Par cette communication, nous avons essayé d’identifier les raisons de la faible proportion des femmes occupant un poste à responsabilités, soit financier dans une organisation quelconque, soit au sein même d’une institution financière, en nous basant principalement sur le genre et sur l’ensemble des préjugés qui y sont associés. [less ▲]

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See detailAssessment of the long term changes of the SES ecosystem
Grégoire, Marilaure ULg

Conference (2009, November)

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See detailPrésentation d’un outil logiciel pour soutenir la détection des tentatives de fraudes lors de l’évaluation des apprentissages
Béland, Sébastien; Raîche, Gilles; Magis, David ULg et al

Conference (2009, November)

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See detailAir-ice CO2 fluxes and pCO2 dynamics in sea ice in the Arctic (Amundsen Gulf)
Geilfus, Nicolas-Xavier ULg; Tison, Jean Louis; Carnat, Gauthier et al

Conference (2009, November)

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See detaildichoDIF: un package du logiciel R pour la détection du fonctionnement différentiel d'items dichotomiques en psychométrie
Magis, David ULg; Béland, Sébastien; Tuerlinckx, Francis et al

Conference (2009, November)

Detailed reference viewed: 14 (1 ULg)
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See detaile-demos, we show faculty what we got
Van de Poël, Jean-François ULg; Lecomte, Béatrice ULg

Conference (2009, November)

"How can I start, and what should I do?" The e-demos interface is our answer for faculty who request concrete examples of e-learning activities and want to know how to develop e-learning activities in ... [more ▼]

"How can I start, and what should I do?" The e-demos interface is our answer for faculty who request concrete examples of e-learning activities and want to know how to develop e-learning activities in their own contexts. [less ▲]

Detailed reference viewed: 18 (2 ULg)
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See detailLe théâtre politique comme paradigme
Delhalle, Nancy ULg

Conference (2009, November)

Detailed reference viewed: 42 (9 ULg)
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See detailLa mediation musicale en question
Lambeau, Céline ULg

Conference (2009, November)

Detailed reference viewed: 36 (2 ULg)
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See detailBuitenlands familial statuut en vreemdelingenrecht: het ipr in het verdomhoekje?
Wautelet, Patrick ULg

Conference (2009, November)

This presentation attempts to uncover the influence of migration policy and law on the processes of private international law dealing with cross-border family relationships, using examples from Belgian ... [more ▼]

This presentation attempts to uncover the influence of migration policy and law on the processes of private international law dealing with cross-border family relationships, using examples from Belgian and Dutch practice. [less ▲]

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See detailLe potentiel diagnostique des épreuves standardisées au Luxembourg.
Dierendonck, Christophe; Burton, Réginald; Fagnant, Annick ULg

Conference (2009, November)

Detailed reference viewed: 19 (0 ULg)
See detailFunctional characterization of glycolytic enzymes from Arabidopsis: do they only have a metabolic function?
Ros, Ros; Muñoz-Bertomeu, Jesús; Cascales - Miñana, Borja ULg et al

Conference (2009, November)

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See detailCan the syllabus actually impact students' perceptions of a course regarding their personal needs and motivation? (Exploring consistencies between syllabi’s qualities and benefit on students’ attitude toward a course)
Leduc, Laurent ULg

Conference (2009, November)

Faculties at the University of Liège, just like so many of their academic colleagues worldwide, have to write and orally present a syllabus for each of their courses every year. Although very demanding ... [more ▼]

Faculties at the University of Liège, just like so many of their academic colleagues worldwide, have to write and orally present a syllabus for each of their courses every year. Although very demanding, this effort is clearly described by many authors as an important opportunity to make a decisive first impression and to favourably affect students’ attitude and perceptions toward a given course regarding their personal needs and motivation notably. Even if the hypothesis seem plausible and inspiring for practice at first sight, the likelihood of a given syllabus to actually impact those perfection in the right way still has to be experienced. So, for a syllabus whose qualities / characteristics seem to make it likely or not to impact positively or negatively learners’ perceptions of courses linked to their motivation and individual needs, will consistent effects be observed on the ones who have read / heard it? Among the students’ perceptions that an effective syllabus would be likely to positively impact according to the literature, some appear to correspond to the three determining factors of the motivational dynamics’ model from Roland Viau [1997]: the perception of controllability [Bain, 2004; Lang, 2006; Hudd, 2003], the perception of activities value [Wasley, 2008, Hammons & Shock, 1994; Johnson, 2006] and the perception of competency [Slattery & Carlson, 2005; Madson, Melchert, Whipp, 2004]. Other theoretical benefits of the syllabus on students’ attitude refer to the “consideration of what students need in order to be successful learners” [Hess & Whittington, 2003] or the support of “developmental needs of the students” [Haugen, 1998]. Here, items used to check learners’ perceptions and to observe if “the syllabus addresses the question of whether the class will meet student needs” [Birdsall, 1989] have been closely related to the levels of Abraham Maslow’s Hierarchy of Needs Chart. In 2008, within its mandatory program of pedagogical training for new faculties, the IFRES (Institute for Training and Research in Higher Education) has created a thematic seminar offering guidelines to promote syllabi aiming notably to motivate students and meet developmental needs. At the beginning of the following academic year, ten syllabi and introduction speeches - meant to Freshmen or Sophomores and designed by ten faculties who followed the seminar - were collected and recorded in order to be analyzed. Their likelihood to impact the targeted students’ perceptions was then rated according to criteria rigorously derived from literature. During the second class of the ten teachers, questionnaires were submitted to their 1300 First/Second-Year students in order to investigate the possible corollary impact of those transmitted pieces of information on their concerned perceptions. In order to measure hypothetical gains due to syllabi, couples of symmetrical pre and post items were included. Data collected from the students concerning their post perceptions and their answers about their reading / hearing or not of their respective syllabi /oral speeches are currently crossed. Chi squares are calculated to identify significant relationships between them, as well as correlations indexes. Afterwards, synoptic tables are produced to observe consistencies between ratings of teachers’ performances and students’ levels of declared perceptions. At this stage, it appears that variables regarding motivation are clearly independent for about 2/3 of the studied relations. Nevertheless, considering the cases where the X²test indicate links between the data, concrete consistencies can be observed between the ratings obtained from the content analysis of syllabi or speeches and the observed percentages of students declaring good perceptions. Besides, the comparison of the percentages of students declaring good perceptions before and after having received syllabi and speeches clearly indicate frequent consistencies with the syllabi’s ratings on the same variables. Looking at the impressive number of universities everywhere asking or urging their teachers to produce syllabi for each of their courses, it seems obvious that this task has become a classic in any faculty’s pedagogical practice. This generalization also seems to indicate a consensus on the fact that this effort make sense and can be useful, particularly for students. This research aims to objectify this usefulness in order to guide and promote professors’ reflection on effective syllabus - for instance in the context of a regulated training seminar -, especially since it is also considered to benefit as planning tool for faculties [Littlefield, 1999; Matejka & Kurke, 1994 ; Sinor & Kaplan], or as permanent record for promotions or program consistency [Parkes & Harris, 2002; Leibow, 2003 ; Seldin, 1998]. [less ▲]

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See detailIs thrombin generation the new rapid, reliable and relevant pharmacological tool for the development of anticoagulant drugs?
Robert, S.; Ghiotto, J.; Pirotte, Bernard ULg et al

Conference (2009, November)

Detailed reference viewed: 20 (1 ULg)
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See detailThe lymphotoxin-β receptor induces different patterns of gene expression via two NF-κB pathways
Dejardin, Emmanuel ULg; Droin, Nathalie; Delhase, Mireille et al

Conference (2009, October 30)

Detailed reference viewed: 15 (7 ULg)
See detailSmart drug delivery systems based on ph-sensitive block copolymers
Jérôme, Christine ULg

Conference (2009, October 28)

Detailed reference viewed: 14 (3 ULg)
See detailArgumentative interaction in a Flemish participatory technology assessment
Van Oudheusden, Michiel ULg

Conference (2009, October 27)

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See detailCritères de reprise sportive après chirurgie tendineuse
Kaux, Jean-François ULg; Crielaard, Jean-Michel ULg

Conference (2009, October 26)

Detailed reference viewed: 129 (11 ULg)
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See detailAnnual congress of the international league for competition law.
Petit, Nicolas ULg

Conference (2009, October 25)

Detailed reference viewed: 5 (1 ULg)
See detailAgir et penser sexués à l'adolescence : entre rapports sociaux de sexe et de classe
Gavray, Claire ULg

Conference (2009, October 24)

Detailed reference viewed: 5 (1 ULg)
See detailPros and Cons University-based Business Schools
Froehlicher, Thomas ULg

Conference (2009, October 24)

Detailed reference viewed: 54 (4 ULg)
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See detailRôle et suivi infirmier lors de l'implantation percutanée de valve aortique
ERPICUM, Marie ULg

Conference (2009, October 23)

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See detailApproche numérique simplifiée et comparaison aux résultats expérimentaux
Machiels, Olivier ULg

Conference (2009, October 23)

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See detailEntre attention et jugement : Brentano et la perception
Boccaccini, Federico ULg

Conference (2009, October 23)

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See detailMéthode de pré-dimensionnement des PKW et application au barrage de la Raviège
Machiels, Olivier ULg

Conference (2009, October 23)

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See detailA Systems Biology Approach to Apoptosis Signalling
Bullinger, Eric ULg

Conference (2009, October 22)

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See detailPresentation of the results from the Egolf TC2 09 -1 fire resistance round robin
Dumont, Fabien ULg

Conference (2009, October 22)

This presentation reports the statistical analysis conducted on the raw data issued from the TC2 09-1 round-robin performed by 31 Egolf fire testing laboratories. The test specimen is a gypsum plaster ... [more ▼]

This presentation reports the statistical analysis conducted on the raw data issued from the TC2 09-1 round-robin performed by 31 Egolf fire testing laboratories. The test specimen is a gypsum plaster board partition tested according to EN 1364-1. [less ▲]

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See detailHow are consummers' interests taken into account when applying competition law ?
Sibony, Anne-Lise ULg

Conference (2009, October 21)

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See detailVapocraquage et Steam Explosion
Jacquet, Nicolas ULg; Paquot, Michel ULg

Conference (2009, October 21)

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See detailApplication of the HFEMC method to an abandoned coalfield in Belgium: From conceptualisation to scenario simulations
Wildemeersch, Samuel ULg; Brouyère, Serge ULg; Orban, Philippe ULg et al

Conference (2009, October 20)

The Hybrid Finite Element Mixing Cell (HFEMC) method is a flexible modelling technique particularly suited to mining context (Brouyère et al., 2009). The principle of this method is to subdivide the ... [more ▼]

The Hybrid Finite Element Mixing Cell (HFEMC) method is a flexible modelling technique particularly suited to mining context (Brouyère et al., 2009). The principle of this method is to subdivide the modelled zone into several subdomains and to select a specific equation, ranging from the simple linear reservoir equation to the groundwater flow in porous media equation, to model groundwater flow in each subdomain. The model can be run in transient conditions, which makes it a useful tool for managing mine closure post-issues such as groundwater rebound and water inrushes. An application of the HFEMC method to an abandoned underground coal mine near the city of Liège (Belgium) is presented. The case study zone has been discretized taking advantage of the flexibility of the method. Then, the model has been calibrated in both steady-state and transient flow regimes based on hydraulic head and water discharge rate observations. Finally, the calibrated model has been used to run several scenarios in order to assess the impacts of possible future phenomena on the hydraulic heads and the water discharge rates. Among others, the simulation of a strong rainfall event shows a quick and strong increase in hydraulic heads in some exploited zones coupled with a strong increase in associated water discharge rates. This could lead to stability problems in the hill slopes near the exploited zones. This kind of predictions can greatly help managing and predicting mine water problems in this particularly complex mining system. [less ▲]

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See detailExperiences on avoided degradation in Africa : Technical challenges in monitoring of carbon impacts of logging and the estimation of potential impact of SFM and RIL practices - state of the art of current research, results and future axes of research needed
Durrieu de Maderon, Luc; Bauwens, Sébastien ULg

Conference (2009, October 20)

Présentation des pratiques forestières en Afrique Centrale de leurs impacts en terme de carbone et proposition d'un protocole d’études

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See detailPulse pressure and pulse wave velocity as markers of arterial stiffness in patients with type 1 diabetes
Philips, Jean-Christophe ULg; Xhignesse, Patricia ULg; Marchand, Monique ULg et al

Conference (2009, October 19)

Type 1 diabetes was associated with an increase in both PP and PWV as compared to a nondiabetic population. In the diabetic population, a close correlation between the two indirect markers of arterial ... [more ▼]

Type 1 diabetes was associated with an increase in both PP and PWV as compared to a nondiabetic population. In the diabetic population, a close correlation between the two indirect markers of arterial stiffness was found and also between each of them and age (or diabetes duration), but not in controls. These observations support the concept of an earier arterial stiffness in type 1 diabetes with rather poor glycemic control. [less ▲]

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See detailExposer la ville et son histoire. Le musée de ville comme concept muséologique
Postula, Jean-Louis ULg

Conference (2009, October 17)

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See detailOral Photography
LAMBERT, France ULg

Conference (2009, October 17)

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See detailHow to Capture Life as it Happens ? An Aesthetical Approach to Joann Sfar’s Drawing
Hagelstein, Maud ULg

Conference (2009, October 17)

Which theoretical categories can we use to talk about an artist’s drawing? The quality of the line, the specific rhythm, the relationship between line and color, the degree of realism or the aesthetic ... [more ▼]

Which theoretical categories can we use to talk about an artist’s drawing? The quality of the line, the specific rhythm, the relationship between line and color, the degree of realism or the aesthetic influence of past masters: these are not easy to describe in an original way. The difficulties encountered in the traditional field of the fine arts also present themselves when considering comics because the drawing is specific and implicates a different temporality. The artists themselves regret the lack of a real aesthetic approach to their works, but we cannot simply transpose the usual discourse to the study of comics: as a young medium, this art form deserves relevant categories of analysis. My research will investigate what Aesthetics, as formal approach, could add to comics studies. I propose to read Joan Sfar’s auto-biographical notebooks published by L’association between 2002 and 2005 – in particular: Harmonica, Ukulélé, Parapluie, Piano, Caravan. These notebooks contain precious insight into his work method and his drawing. I would like to highlight several recurring themes. Sfar first criticizes the “academic drawing” he learned at school as being too “realist,” “anatomical,” and devoid of life. He explains that it took him a long time to depart from this kind of drawing. By contrast, he heartily advocates drawing directly from the perception of movement, situation, and expression, implying rapid and freehand drawing. In this context, Sfar refers to the famous illustrator Quentin Blake, who describes his career path, accompanied by relevant drawings, in La vie de la page (1995). I propose to compare Joan Sfar’s ideas on drawing with this principal influence on his work. Finally, the theory of color and light shows – in another way – the importance of the accidental and the uncalculated in his art. My arguments will be supported by various examples of Sfar’s work. [less ▲]

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See detailThe Rake’s Progress – Igor Stravinsky
Corswarem, Emilie ULg

Conference (2009, October 16)

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See detailLe droit de rétractation/Het herroepingsrecht
Biquet, Christine ULg; Loly, Jessica ULg; Steennot, Reinhard

Conference (2009, October 16)

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See detailRevisiting the multivariate coefficient of variation for comparing electrophoretic techniques in External Quality Assessment (EQA) schemes
Zhang, Lixin ULg; Albert, Adelin ULg

Conference (2009, October 15)

External Quality Assessment (EQA) schemes are national programmes designed to control the analytical performance of clinical laboratories and to maintain inter-laboratory variability within acceptable ... [more ▼]

External Quality Assessment (EQA) schemes are national programmes designed to control the analytical performance of clinical laboratories and to maintain inter-laboratory variability within acceptable limits. In this context, the type of assay technique or equipment used by the participants is an important factor to take into account. The coefficient of variation (CV) is widely used in EQA to compare the reproducibility of techniques and equipments: the lower the CV, the better the analytical performance. The recent introduction of protein electrophoresis, a laboratory test profile consisting of five fractions (albumin, α1, α2, β and γ globulins) summing up to 100%, in the EQA programme (Zhang et. al. 2008) prompted us to revisit an old problem (Reyment 1960), namely the multivariate extension of the univariate CV concept, and to suggest some amendments to existing solutions. Further, the application of the multivariate CV to techniques and methods used in the assay of protein electrophoresis raises concomitant statistical problems. First, the compositional nature of electrophoretic data requires a log-ratio one-to-one transformation from the simplex to the real space (Aitchison 1982). Next, robust estimations of the mean and the covariance matrix (Rousseeuw and Van Driessen 1999) are needed to avoid the effect of outliers. The resulting robust multivariate CVs are illustrated on electrophoretic EQA material from the Belgian and French national EQA programmes to assess the analytical variability of the electrophoretic techniques used. [less ▲]

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See detailImpact of antibiotics in wastewater on activated sludge treatment. The Erythromycin case
Louvet, Jean-Noël ULg; Potier, Olivier; Dumas, Dominique et al

Conference (2009, October 15)

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See detailEstimation of the error distribution in right censored and selection biased regression models
Laurent, Géraldine ULg; Heuchenne, Cédric ULg

Conference (2009, October 15)

Consider the location-scale regression model Y=m(X) + σ(X) Ɛ where the error Ɛ is independent of the covariate X and where m and σ are unknown smooth functions. The pair (X; Y ) is subject to generalized ... [more ▼]

Consider the location-scale regression model Y=m(X) + σ(X) Ɛ where the error Ɛ is independent of the covariate X and where m and σ are unknown smooth functions. The pair (X; Y ) is subject to generalized bias selection and the response to right censoring. We construct an estimator for the cumulative distribution function of the error Ɛ, and develop a bootstrap procedure to select the smoothing parameter involved in the procedure. This method is studied via extension simulations and applied to real unemployment data. [less ▲]

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See detailPEGASE: UN MODÈLE INTÉGRÉ BASSIN HYDROGRAPHIQUE/ RIVIÈRES: PREMIÈRE APPLICATION TEST À LA COCAÏNE.
Deliège, Jean-François ULg; Everbecq, Etienne ULg; Magermans, Pol ULg et al

Conference (2009, October 15)

Le modèle PEGASE (Planification Et Gestion de l’ASsainissement des Eaux), développé à l’Aquapôle de l’Université de Liège a été utilisé pour réaliser une première simulation test de la cocaïne dans le ... [more ▼]

Le modèle PEGASE (Planification Et Gestion de l’ASsainissement des Eaux), développé à l’Aquapôle de l’Université de Liège a été utilisé pour réaliser une première simulation test de la cocaïne dans le réseau hydrographique belge. La principale conclusion de cette simulation test est qu’il est possible de simuler le devenir des dérivés de la cocaïne dans les eaux de surface ; cela démontre également la cohérence des mesures réalisées dans le cadre de l’étude COWAT. Des améliorations mineures au modèle PEGASE et aux données d’entrée seraient cependant souhaitables pour améliorer cette modélisation (possibilité de faire varier l’équivalent-habitant par zones). [less ▲]

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See detailPréparation de nouveaux copolymères amphiphiles mannosylés d'architecture greffée et caractérisation par QCM-D
Freichels, Hélène ULg; Broze, Guy; Alaimo, David ULg et al

Conference (2009, October 14)

Durant les dernières décennies, le domaine pharmaceutique s’est intéressé aux micelles et nanoparticules polymères celles-ci pouvant être utilisées comme vecteurs à libération contrôlée. Dans ce domaine ... [more ▼]

Durant les dernières décennies, le domaine pharmaceutique s’est intéressé aux micelles et nanoparticules polymères celles-ci pouvant être utilisées comme vecteurs à libération contrôlée. Dans ce domaine, des copolymères amphiphiles combinant le poly(oxyde d’éthylène) (POE), polymère possédant des propriétés répulsives vis-à-vis des protéines plasmiques, et la poly-epsilon-caprolactone (PCL), un polyester aliphatique, polymère hydrophobe biocompatible et biodégradable permettant l’incorporation d’un principe actif hydrophobe, sont d’excellents candidats pour cette d’application. Jusqu’à présent, ce type de copolymère amphiphile principalement étudié est d’architecture linéaire. Récemment, notre laboratoire a développé une stratégie permettant la préparation de nouveaux copolymères greffés, composés d’un squelette principal de PCL et de greffons de POE. De plus, des agents de ciblage peuvent être introduits à l’extrémité du POE de ces copolymères amphiphiles, faisant de ceux-ci des candidats idéaux comme vecteur de troisième génération, permettant un ciblage spécifique au sein même de l’organisme. Le mannose est un agent intéressant, car il est reconnu à la surface des cellules dendritiques. Dans ce travail, la préparation de copolymères greffés fonctionnalisés par du mannose est décrite. La présence de mannose à la surface des micelles a d’abord été mise en évidence par test ELLA (Enzyme Linked Lectin Assay). Ensuite une étude plus approfondie a été réalisée par QCM-D (Microbalance à Cristal de Quartz avec Dissipation). Cette technique originale permet de mettre en évidence l’interaction entre la lectine immobilisée sur la surface du cristal de la microbalance et le mannose exposés à la périphérie des micelles du copolymère. [less ▲]

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See detailDetection of influential observations on the error rate based on the generalized k-means clustering procedure
Ruwet, Christel ULg; Haesbroeck, Gentiane ULg

Conference (2009, October 14)

Cluster analysis may be performed when one wishes to group similar objects into a given number of clusters. Several algorithms are available in order to construct these clusters. In this talk, focus will ... [more ▼]

Cluster analysis may be performed when one wishes to group similar objects into a given number of clusters. Several algorithms are available in order to construct these clusters. In this talk, focus will be on the generalized k-means algorithm, while the data of interest are assumed to come from an underlying population consisting of a mixture of two groups. Among the outputs of this clustering technique, a classi cation rule is provided in order to classify the objects into one of the clusters. When classi cation is the main objective of the statistical analysis, performance is often measured by means of an error rate ER(F; Fm) where F is the distribution of the training sample used to set up the classi cation rule and Fm (model distribution) is the distribution under which the quality of the rule is assessed (via a test sample). Under contamination, one has to replace the distribution F of the training sample by a contaminated one, F(eps) say (where eps corresponds to the fraction of contamination). In that case, the error rate will be corrupted since it relies on a contaminated rule, while the test sample may still be considered as being distributed according to the model distribution. To measure the robustness of classification based on this clustering proce- dure, influence functions of the error rate may be computed. The idea has already been exploited by Croux et al. (2008) and Croux et al. (2008) in the context of linear and logistic discrimination. In this setup, the contaminated distribution takes the form F(eps)= (1-eps)*Fm + eps*Dx, where Dx is the Dirac distribution putting all its mass at x: After studying the influence function of the error rate of the generalized k- means procedure, which depends on the influence functions of the generalized k-means centers derived by Garcia-Escudero and Gordaliza (1999), a diagnostic tool based on its value will be presented. The aim is to detect observations in the training sample which can be influential for the error rate. [less ▲]

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See detailInterprétation des sérologies infectieuses à orientation rhumatologique.
HUYNEN, Pascale ULg

Conference (2009, October 14)

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Peer Reviewed
See detailInter-organizational learning within innovation projects : critical stages, issues and good practices
Rondeaux, Giseline ULg; Chalant, Ingrid ULg; Degré, Julie ULg et al

Conference (2009, October 13)

In September 2005, the Walloon Government decided to adopt “the Walloon Marshall Plan”, one of the priorities of which is the setting up of competitiveness clusters bringing together different ... [more ▼]

In September 2005, the Walloon Government decided to adopt “the Walloon Marshall Plan”, one of the priorities of which is the setting up of competitiveness clusters bringing together different contributors (businesses, private & public research centres and training centres). In this context, our aim is to understand how the businesses and the research and training centres are managing to put in place partnership dynamics in order to create innovative projects. To achieve this, we have chosen to focus primarily on the dynamics of inter-organizational learning. Consequently, within the five competitiveness clusters set up in mid-2006, we have opted to focus in particular on 4 projects which have emerged from them. The conceptual model upon which we have based our initiative is structured around this aim and makes use of various analytical benchmarks. Inspired in particular by the work of Holmqvist (2003), this model constitutes our reading and analysis framework for the projects selected from the four competitiveness clusters selected. [less ▲]

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See detailLa transplantation pancréatique isolée : le retour à l'activité physqiue
Malaise, Jacques; Dabe, Alain; Hermant, Christophe et al

Conference (2009, October 10)

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See detailPrésentation des ateliers de philosophie de PhiloCité
Herla, Anne ULg

Conference (2009, October 10)

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See detailNaissance et renaissance de vétérans: interactions entre l'Arbre et l'Homme au fil des siècles
Campanella, Bruno ULg; Kervyn, Vincent; Delcroix, Bernard et al

Conference (2009, October 10)

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See detailBehavioural impacts of gender stereotype level at adolescence ” .
Gavray, Claire ULg

Conference (2009, October 10)

Survey 2009 on adolescents' stereotypes (900 Belgian pupils). Links can be done between , on one hand, stereotyped faiths and attitudes and, on a other hand, the experience of violence, as victim and ... [more ▼]

Survey 2009 on adolescents' stereotypes (900 Belgian pupils). Links can be done between , on one hand, stereotyped faiths and attitudes and, on a other hand, the experience of violence, as victim and perpetrator. It's true for boys and girls but not with the same profile. Comparisons can be done with ISRD results ( Self-related Delinquency data) [less ▲]

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See detailDosage de l'alcool dans le cadre de la sécurité routière : approche statistique
Pirson, Laurence ULg

Conference (2009, October 09)

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See detailL'arbre dans le patrimoine culturel immatériel
Lempereur, Françoise ULg

Conference (2009, October 08)

La communication s'attache à définir les pratiques culturelles dans laquelle l’arbre s’inscrit : pratiques coutumières du temps et des groupes, pratiques économiques, politiques, alimentaires, techniques ... [more ▼]

La communication s'attache à définir les pratiques culturelles dans laquelle l’arbre s’inscrit : pratiques coutumières du temps et des groupes, pratiques économiques, politiques, alimentaires, techniques, ludiques, expressives, scientifiques et éthiques. Elle tente de définir le statut de l’arbre au sein des sociétés traditionnelles et examine quelles valeurs identitaires, esthétiques, juridiques, symboliques ou pragmatiques sont aujourd’hui liées aux arbres patrimoniaux et comment les collectivités et/ou les institutions peuvent (ou doivent) prendre en charge la protection de ces valeurs et surtout leur transmission. [less ▲]

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Peer Reviewed
See detailFirm-Level Evidence on Innovation in Spain
Artige, Lionel ULg

Conference (2009, October 08)

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See detailPlantes médicinales et paludisme
Angenot, Luc ULg

Conference (2009, October 07)

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Peer Reviewed
See detailEvaluation des potentialités antiplasmodiales de plantes utilisées en médecine traditionnelle au Burkina Faso
Jansen, Olivia ULg; Nikiéma, Jean-Baptiste; Angenot, Luc ULg et al

Conference (2009, October 07)

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See detailLa politique étrangère de l’administration d’Álvaro Uribe Vélez : Le paradoxe entre vouloir et réussir une intégration sous-régionale latino-américaine
Parra Santamaria, Lusmiriam Andrea ULg

Conference (2009, October 03)

This communication is about the Alvaro Uribe Velez' (two periods) commercial foreign policy. By a constructivist description of this policy I showed its paradox. The objectif of working for regional ... [more ▼]

This communication is about the Alvaro Uribe Velez' (two periods) commercial foreign policy. By a constructivist description of this policy I showed its paradox. The objectif of working for regional integration (of Andean Community of Nations) was banned by this President´s unilateral political actions. [less ▲]

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See detailThe Management of Social Enterprises
Mertens de Wilmars, Sybille ULg

Conference (2009, October 02)

This presentation describes the ways in which social enterprises are managed in order to successfully combine social mission and economic activities.

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See detail"Premier point: l'écriture"
Sofia, Estanislao ULg

Conference (2009, October 02)

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Peer Reviewed
See detailLe droit immobilier en Europe : perspectives d’avenir
Kohl, Benoît ULg

Conference (2009, October 02)

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See detailLe management des entreprises de l'économie sociale
Mertens de Wilmars, Sybille ULg

Conference (2009, October 02)

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See detailVitamin D, Status and perspectives
CAVALIER, Etienne ULg

Conference (2009, October 02)

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