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See detailPour une conception deleuzienne de l'interdiscursivité
Franck, Thomas ULg

Conference (2016, June)

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See detailPhotoionization as a Soft Ionization Source for Comprehensive Two-dimensional GC (GCxGC) and High-Resolution TOFMS
Ubukata, M; Cody, RB; Dane, J et al

Poster (2016, June)

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See detailPOP measurements: Tracking Down the Part in the Quintillion
Focant, Jean-François ULg

Conference (2016, June)

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See detailStudy of Developmental and Molecular Processes Sorbs1 Regulated by using a combination of in vitro and in vivo models
Bacquelaine Veloso, Alexandra ULg; Dequiedt, Franck ULg; Bruyr, Jonathan ULg et al

Report (2016)

SoHo proteins belong to a family that includes three members:  Sorbs1 (Cbl-associated protein, CAP/ponsin), Sorbs2 (Arg-Binding Protein 2, ArgBP2) and Sorbs3 (Vinexin). These proteins share a similar ... [more ▼]

SoHo proteins belong to a family that includes three members:  Sorbs1 (Cbl-associated protein, CAP/ponsin), Sorbs2 (Arg-Binding Protein 2, ArgBP2) and Sorbs3 (Vinexin). These proteins share a similar structure with a SoHo domain in N-terminal region and three SH3 domains in carboxy-terminal region. These characteristic domains bind to several signaling molecules involved in a variety of cytoskeleton-related processes, and SoHo family members are thus thought to function as adaptor proteins. However, the precise role of these proteins in the cytoskeleton regulation and associated biological functions remains unknown. It is well established that cytoskeleton regulation is critical for various developmental events including angiogenesis, the process by which new blood vessels develop from pre-existing ones. The goal of this project is to identify the developmental function of Sorbs1 and to characterize the underlying molecular events by exploiting a combination of in vivo (Zebrafish) and in vitro (Huvecs) models. In vitro assays showed that Sorbs1 inactivation results in defects of migratory (not shown) and adhesive properties of endothelial cells which leads to problems in tubular formation and sprouting of this last ones, by controlling small Rho-GTPases activity. Sorbs1 morphant zebrafish embryos, revealed abnormal development of venous angiogenic structures (such as caudal vein plexus (CVP) and subintestinal veins (SIV)), which could be related to the defects observed in vitro. These results highlighted important developmental defects following Sorbs1 inactivation in two types of models, which led us to conclude that Sorbs1 could be an important regulator of cytoskeleton-dependent processes, especially during angiogenesis. [less ▲]

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See detailHealth screening to identify opportunities to improve preventive medicine in cats and dogs
Diez, Marianne ULg; Picavet, Philippe; Ricci, Rebecca et al

in European Journal of Companion Animals Practice online (2016), 2(Summer), 54-62

OBJECTIVES: To describe the results of a prevention campaign in terms of participation and pet health status and to identify opportunities to improve preventive medicine in cats and dogs. METHODS:An ... [more ▼]

OBJECTIVES: To describe the results of a prevention campaign in terms of participation and pet health status and to identify opportunities to improve preventive medicine in cats and dogs. METHODS:An awareness campaign was designed to highlight the role of veterinarians and emphasise the benefits of a veterinary visit. Owners were invited to make an appointment for a free pet health check in a voluntarily participating veterinary clinic. Observations recorded by the veterinarians were entered in a database and subsequently analysed using simple descriptive statistics. RESULTS:A total of 5305 completed health check forms were analysed. The percentages of overweight and obese dogs and cats were 34 and 36%, respectively; this was the most common finding, followed by dental calculus (31% in dogs, 21% in cats). In total 67% of cats did not undergo flea control and 59% were not vaccinated. CLINICAL SIGNIFICANCE: Opportunities for increased quality of care are numerous given the high percentage of intact, unvaccinated or non-permanently identified pets and the low level of worm and flea control. Animal health should benefit from preventive measures, and improved management can be undertaken after early detection of diseases. [less ▲]

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See detailThe Origins of Dominance in EU Competition Law: An Introductory Note
Marcos Ramos, Jorge ULg

Scientific conference (2016, June)

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See detailOsteoarthritis biomarkers derived from cartilage extracellular matrix: Current status and future perspectives.
Henrotin, Yves ULg; Sanchez, Christelle ULg; Bay-Jensen, A. C. et al

in Annals of physical and rehabilitation medicine (2016), 59(3), 145-148

Specific soluble biomarkers can be powerful tools for the diagnosis, prognosis and personalized management of osteoarthritis (OA). Biomarkers are potential indicators of the effect of a drug on cartilage ... [more ▼]

Specific soluble biomarkers can be powerful tools for the diagnosis, prognosis and personalized management of osteoarthritis (OA). Biomarkers are potential indicators of the effect of a drug on cartilage metabolism and provide crucial information about the mechanisms of drug action. In this review, we address key questions concerning the use of biomarkers in OA management: Why do we need soluble biomarkers? What are the most widely investigated biomarkers derived from cartilage extracellular matrix? What are the most common pitfalls in interpreting soluble biomarker measurements? What are the perspectives and future research directions in this field? We review current evidence to propose that cartilage-derived soluble biomarkers are complementary "drug development tools" that can be applied during drug development from preclinical research to clinical evaluation. In the future, such biomarkers could be surrogate markers of clinical and/or imaging outcomes. Successful standardization and implementation of automated biomarker assays will facilitate their use in companion diagnostics in the context of personalized medicine for enhanced management of OA. [less ▲]

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See detailSeed Dispersal by Western Lowland Gorillas: from Fruits to Seedlings
Haurez, Barbara ULg

in Gorilla Journal Journal of Berggorilla & Regenwald Direkthilfe (2016), 52

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See detailRapport d’analyse dendrochronologique, Complément d’étude, Rue du Marché aux Herbes 8-10, Bruxelles (P582/713)
Weitz, Armelle ULg; Crémer, Sarah; Fraiture, Pascale et al

Report (2016)

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See detailRapport d’analyse dendrochronologique, Entrepôt, Quai aux pierres de taille 20, Bruxelles (P552/804)
Weitz, Armelle ULg; Crémer, Sarah; Fraiture, Pascale et al

Report (2016)

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See detailDisentangling soil from plant methanol exchanges in a maize field: a first step
Bachy, Aurélie ULg; Mozaffar, Ahsan ULg; Aubinet, Marc ULg et al

Poster (2016, June)

This poster presents the current research done in order to disentangle soil from plant methanol exchanges in a maize field. Methanol exchanges were calculated at ecosystem-scale (therefore including both ... [more ▼]

This poster presents the current research done in order to disentangle soil from plant methanol exchanges in a maize field. Methanol exchanges were calculated at ecosystem-scale (therefore including both components). It bases on the following observation: methanol exchanges on bare soil (measured when maize was at germination stage) were as important as when plants were fast growing (and thereby, when the highest methanol plant methanol emissions were expected), and this under similar weather conditions. The goal of this poster is thus to understand why emissions were similar at these two periods. First, it addresses the question of the actual contribution of maize plants in methanol exchanges, by comparing up-scaled methanol exchanges measured on maize at leaf-scale (Mozaffar A.) to those measured at ecosystem-scale. Then, it investigates methanol exchanges mechanisms in order to evaluate how did soil methanol emissions evolve along the maize growing season. At the end of this poster, the hypothesis of decreasing soil methanol emissions along the maize growing season is proposed. [less ▲]

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See detailEducation of instructors of a physical activity program for cancer patients and survivors: planning and evaluation of a poster presentation session
Rompen, Jérôme ULg; Korycki, Marta ULg; Ortmans, Sabine et al

Poster (2016, June)

Introduction The Belgian Foundation against Cancer proposes an adapted physical activity (APA) program for cancer patients and survivors, called Raviva (http://www.cancer.be/raviva-bouger-pour-se-sentir ... [more ▼]

Introduction The Belgian Foundation against Cancer proposes an adapted physical activity (APA) program for cancer patients and survivors, called Raviva (http://www.cancer.be/raviva-bouger-pour-se-sentir-mieux).The activities are supervised by instructors with inconstant trainings and experiences. Contrary to other countries, Belgian APA instructors do not necessarily need to follow specific education programs such those proposed by the ACSM (Schmitz et al., 2010).We were involved in the implementation of a specific training day for in-service Raviva instructors. As it is the case in sport coaches’ education (Erickson et al., 2008), interacting with colleagues seemed to be an appropriate method to improve APA instructors’ skills. Therefore, interactive methods were proposed to be used in order to increase the participants’ interest. The aim of this paper was to describe and analyse a poster presentation session as well as to identify good practices. Methods As part of the training day, the poster presentation session consisted to create groups of 4 to 5 persons and to ask them to imagine and share solutions to specific problems linked with psycho-emotional aspects of the instruction process with Raviva groups. Three methods were used to collect the data: interviews of the organizers (n=4), a questionnaire for all trainees (n=35) and participant observation. Results Examples of good practices were listed and exchanged between the participants. All trainees considered that the poster presentation session was interesting and most of them (94%) reported that appropriate themes were discussed. Moreover, 88.2% of the participants mentioned that they were able to share their experiences. Three expressed negative opinions about the organization. These opinions were supported by all organizers as well as by the observation. Conclusions This educational tool seems to be interesting. However, organizers should plan enough time for such activity. Moreover, the time allocation between each part of the session should be better prepared and controlled. [less ▲]

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See detailAnalyse de la main d’œuvre dans la riziculture de la plaine de la Ruzizi des pays de la CEPGL
Furaha Mirindi, Germaine ULg; Lebailly, Philippe ULg

Conference (2016, June)

Le salariat agricole se développe et les exploitations agricoles y ont de plus en plus recours, notamment dans la riziculture traditionnellement familiale. Jusque-là peu de travaux s’y sont intéressés ... [more ▼]

Le salariat agricole se développe et les exploitations agricoles y ont de plus en plus recours, notamment dans la riziculture traditionnellement familiale. Jusque-là peu de travaux s’y sont intéressés alors qu’il permet de repenser le fonctionnement des exploitations et d’assurer dans certains cas leur reproduction. Nous proposons ici de nous intéresser au salariat, du point de vu des exploitants rizicoles et d’identifier les facteurs qui influencent le recours à la main d’œuvre salariale locale et étrangère selon le cas. L’étude se base sur les données des enquêtes menées auprès de 240 exploitants rizicoles choisis à partir de la méthode des quotas sur la base d'une stratification des exploitations rizicoles et 60 salariés agricoles choisis de manière aléatoire et répartis de manière équitable entre les trois pays. La main d’œuvre agricole est relativement jeune à prédominance masculine. Alors que dans les sites rwandais et burundais, la main d’œuvre locative est locale, dans le site congolais, on y observe un certain flux de la main d’œuvre car 72% de la main d’œuvre travaillant dans les exploitations rizicoles est étrangère dont 47% en provenance du Burundi et 25% en provenance du Rwanda. A partir du test de Levene et celui de Brown et Forsythe, pour les riziculteurs congolais, les facteurs qui influence le recours à la main d’œuvre étrangère sont notamment la superficie rizicole exploitée, une main d’œuvre étrangère bon marché, la facilité d’accès aux intrants bon marché, l’insuffisance de la main d’œuvre locale. En plus, cette main d’œuvre joue un rôle crucial dans la cohésion des peuples dans un contexte post -conflits. [less ▲]

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See detailEducation of instructors of a physical activity program for cancer patients and survivors: planning and evaluation of interactive adapted physical activity working groups
Rompen, Jérôme ULg; Korycki, Marta ULg; Ortmans, Sabine et al

Conference (2016, June)

Introduction Raviva is a Belgian adapted physical activity (APA) program for cancer patients and survivors, developed by the Belgian Foundation against Cancer (http://www.cancer.be/aide-aux-patients/la ... [more ▼]

Introduction Raviva is a Belgian adapted physical activity (APA) program for cancer patients and survivors, developed by the Belgian Foundation against Cancer (http://www.cancer.be/aide-aux-patients/la-fondation-votre-service/raviva-bouger-pour-se-sentir-mieux). Activities supported by this foundation are supervised by instructors with inconstant trainings and experiences. Indeed, in Belgium, APA instructors do not necessarily follow specific training programs such those proposed by the ACSM (Schmitz et al., 2010). As it is the case in sport coaches’ education (Erickson et al., 2008), interacting with colleagues and sharing knowledge could be an interesting way to improve APA instructors’ competencies. The aim of this study was to plan and analyse interactive APA working groups, as part of a training day intended for all Raviva instructors. Methods As part of this training, we proposed three practical physical activity working groups, each one concerning a specific activity: fitness, relaxation and aqua-aerobics. They were designed to generate some good practices in intervention with Raviva groups and had to be interactive: all participants had the opportunity to present their own practices and to discuss and comment the practices of the others. Three methods were used to analyse the activities: interviews of the organizers (n=4), a questionnaire for all trainees (n=35) and participant observation. Results Many examples of practical situations and good practices have been identified.79.4% of the trainees considered that the proposed method was interesting and 88.3% mentioned that they have been actively involved. The organizers were less convinced as they highlighted a lack of ideas sharing as well as low active participation and dynamism. Observations confirmed the organizers’ opinions. Conclusions Participants appeared to be globally satisfied with the practical activities. However, further research is needed to measure the impact of such methods on their future practices. [less ▲]

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See detailEffect of chondroitin sulfate on soluble biomarkers of osteoarthritis: how to analyze and interpret the results from an open-label trial in unilateral knee osteoarthritis patients
Möller, I; Gharbi, Myriam; Martinez, H et al

in Annals of the Rheumatic Diseases (2016, June), 75(Suppl 2), 1167

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See detailEfficient Computation of the Extrema of Algebraic Quality Measures for Curvilinear Finite Elements
Johnen, Amaury ULg; Geuzaine, Christophe ULg; remacle, Jean-François

Conference (2016, June)

The development of high-order computational methods for solving partial differential equations on unstructured grids has been underway for many years. Such methods critically depend on the availability of ... [more ▼]

The development of high-order computational methods for solving partial differential equations on unstructured grids has been underway for many years. Such methods critically depend on the availability of high-quality curvilinear meshes, as one bad element can degrade the solution in the whole domain. The usual way of generating curved meshes is to first generate a (high-quality) straight-sided mesh. Then, mesh entities that are classified on the boundaries of the domain are curved. This operation introduces a "shape-distortion" that should be controlled. Quality measures allow to quantify to which point an element is well-shaped. They also provide tools to improve the quality of meshes through optimization. In this work we propose an efficient method to compute several quality measures for curved elements, based on the Jacobian of the mapping between the straight-sided elements and the curved ones. Contrary to the approach presented in "A. Gargallo-Peiró, X. Roca, J. Peraire, and J. Sarrate. Distortion and quality measures for validating and generating high-order tetrahedral meshes. Engineering with Computers, pages 1–15, 2014.", which relies on an L2-norm over the elements, we compute the actual minimum and maximum of the local quality measure for each element. The method is an extension of previous works on the validity of those elements (A. Johnen et al., 2013). The key feature is that we can adaptively expand functions based on the Jacobian matrix and its determinant in terms of Bézier functions. Bézier functions have both properties of boundedness and positivity, which allow sharp computation of minimum or maximum of the interpolated functions. [less ▲]

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