References of "Scientific congresses and symposiums"
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See detailChlorophyll: natural sources, extraction methods and application for textile industry
Miazek, Krystian ULg; Remacle, Claire ULg; Richel, Aurore ULg et al

Conference (2014, October 14)

Chlorophyll is a photosynthetic pigment available abundantly in microalgae and terrestrial plants. This pigment found applications in pharmaceutical, cosmetic and food products as a wound healing ... [more ▼]

Chlorophyll is a photosynthetic pigment available abundantly in microalgae and terrestrial plants. This pigment found applications in pharmaceutical, cosmetic and food products as a wound healing, antioxidant or coloring agent. Recent reports suggest that chlorophyll can also be used as a biomordant to enhance the dyeing process of textile products, but also as a textile dye with antimicrobial properties. In this presentation, different aspects of chlorophyll production are discussed. Firstly, numerous plant biomass types as potential sources of chlorophyll are presented. Subsequently, different methods for chlorophyll extraction and separation from plant biomass are described. Finally, possibilities of chlorophyll implementation into textile products on industrial scale are evaluated. [less ▲]

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See detailQuel est le profil professionnel des patients consultant en phoniatrie?
REMACLE, Angélique ULg; Petitfils, Cloé; LEJEUNE, LIONEL ULg et al

Conference (2014, October 13)

Nous avons analysé les dossiers de 1079 patients (754 femmes et 325 hommes) qui se sont présentés au CHU de Liège entre 2009 et 2013 pour une plainte vocale. Chez ces patients, nous avons répertorié 121 ... [more ▼]

Nous avons analysé les dossiers de 1079 patients (754 femmes et 325 hommes) qui se sont présentés au CHU de Liège entre 2009 et 2013 pour une plainte vocale. Chez ces patients, nous avons répertorié 121 personnes sans profession (11%), 166 étudiants (16%), 215 retraités (20%), et 577 travailleurs (53%). Parmi ces 577 travailleurs, il y avait notamment 129 enseignants, 55 employés de bureau, 50 chanteurs, comédiens et musiciens, 41 commerçants, 39 managers, 37 aides ménagères et 35 ouvriers. Objectif : Pour les travailleurs, nous avons tenté d’établir le degré d’exposition aux troubles de la voix selon la profession exercée en fonction de leur représentation dans la partie francophone de la Belgique (Wallonie). Notre objectif était de cibler les travailleurs les plus à risque de consulter un spécialiste de la voix. Méthode : Nous avons estimé la proportion de ces travailleurs par profession en calculant le rapport entre leur nombre en consultation phoniatrique et leur nombre parmi les travailleurs wallons. Résultats : Les travailleurs qui consultent le plus pour un problème de voix et qui sont donc le plus à risque sont, par ordre décroissant : les chanteurs, comédiens et musiciens (3.3% ont consulté), suivis par les professeurs de musique (1.5%), les animateurs (0.45%), les entraineurs sportifs (0.29%), les psychologues (0.20%), les journalistes et standardistes (0.17%), et les enseignants (0.14). En conclusion, cette étude montre que les travailleurs qui consultent le plus en phoniatrie ne représentent pas nécessairement le groupe professionnel le plus à risque. [less ▲]

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See detailOn the Importance of Being (More) Attentive. Another Look at Descartes' Practice of Meditation.
Dubouclez, Olivier ULg

Conference (2014, October 11)

At the beginning of Meditation IV the meditator triumphantly announces that he has “now no difficulty in turning away (convertam) from imaginable things and toward things which are objects of the ... [more ▼]

At the beginning of Meditation IV the meditator triumphantly announces that he has “now no difficulty in turning away (convertam) from imaginable things and toward things which are objects of the intellect alone” (AT, VII, 53). Meditation VI thereafter confirms that pure intellection, as opposed to imagination, consists only in turning towards oneself (convertat) and demands no “peculiar effort of the mind” (73). However efforts of attention are required throughout the Meditations and Meditations IV, V and VI are no exceptions in this respect. Descartes’ Second Set of Replies (156-159) confirms that attention is needed as a mental support for metaphysical analysis in order to embrace different ideas and connect different parts of a demonstration. A thorough examination of the Meditations shows something even more interesting: attention is conceived by Descartes as a varying force that can be diminished or relaxed but also, and most importantly, increased as comparative forms like “attentius” (19; 55; 66; 71) or “diligentius” (32; 35; 45) suggest. For sure, it is an original aspect of Cartesian meditative exercise: we are not only invited to maintain our attention but also to make it more intense at a certain point. Such an increase is crucial for the development of the dream argument (55) and also for the achievement of both proofs of the existence of God (45; 66). But is it not a kind of deus ex machina that the meditator puts forward in order to overcome otherwise unsolvable difficulties? A posterior work, The Passions of the Soul, can help us understand such a strategy. In article 72, Descartes distinguishes between two kinds of attention; the first one stems from wonder and is “at its full strength from the start” (XI, 382); it is contrasted with a second type “which, being weak at first and growing only gradually, can be easily diverted” (Ibid.) Further on Descartes says that passion is useful in “strengthening thoughts… and causing them to endure into the soul” (383) but that “the application of our understanding” has the same effect when “our will fixes [it] in a particular attention or reflection” (384). This last case applies to the Meditations: the meditator who is constantly exposed to misleading influences would be easily “diverted” and even stopped if he was not pushed by his own will to go further in his metaphysical inquiry. “Peaks” of attention occurring in the Meditations are caused by volitions originating in the meditator’s resolution to attain truth and certainty and, as we shall see, they are used against three types of harmful influence: sensitive in Meditation I, imaginative in Meditation II and III, and intellectual in Meditation IV and V where old philosophical habits stand in the way of Cartesian theology. [less ▲]

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See detailPrediction of Regulatory Networks & Control of Secondary Metabolite Biosynthesis
Rigali, Sébastien ULg

Conference (2014, October 10)

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See detailIs there a role for intra-arterial therapy or isolated liver perfusion?
DETRY, Olivier ULg

Conference (2014, October 10)

IS THERE A ROLE FOR INTRA-ARTERIAL THERAPY OR ISOLATED LIVER PERFUSION? Pr Olivier Detry, Dpt of Abdominal Surgery and Transplantation, CHU Liege, University of Liege, The liver is the most common ... [more ▼]

IS THERE A ROLE FOR INTRA-ARTERIAL THERAPY OR ISOLATED LIVER PERFUSION? Pr Olivier Detry, Dpt of Abdominal Surgery and Transplantation, CHU Liege, University of Liege, The liver is the most common visceral site of colorectal cancer (CRC) metastasis and recurrence. Approximately 25% of CRC patients present with synchronous hepatic metastases at time of initial diagnosis, and further 50% will develop metachronous metastases during the course of their illness. Unfortunately, only 25% of patients with hepatic CRC metastases are suitable for R0 resection at time of diagnosis or after chemotherapy. Intra‐arterial locoregional therapies are evolving tools in the management of CRC liver metastases. Although these therapies were initially used for salvage and palliation, they are becoming therapeutic options earlier in the course of disease in selected populations, to increase the rate of curative surgical resection, and to improve survival and quality of life. Furthermore, intra‐arterial therapies may serve as viable first‐line treatments for the large majority of patients who present with unresectable liver metastases, and as neoadjuvant chemotherapy prior to hepatectomy to minimize systemic effects. Hyperthermic isolated liver perfusion (HILP) has also been proposed by some groups as a mean to treat patients with unresectable liver metastases. Significant anti-tumoral effect has been demonstrated but HILP is a complicated procedure with a high morbidity. There remains a lack of robust, prospective randomized data for fair and balanced comparisons to be made between locoregional and modern systemic therapeutic modalities, as well as between locoregional therapies. Future RCTs addressing overall patient survival, tumor response and toxicity are required before any of these locoregional intra‐arterial treatments can be definitively recommended as the standard of care for hepatic colorectal liver mestastases. At the CHU of Liege, intra-arterial chemotherapy is now the usual way of administrating chemotherapy in patients with multiple CRC metastases limited to the liver after R0 liver resection. [less ▲]

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See detailSustainability, Dynamic Capabilities, and Innovation
Crutzen, Nathalie ULg; Rammal, Hussain; Burritt, Roger

Conference (2014, October 09)

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See detailRecent advances and improvements in computerized adaptive testing with the R package catR
Barrada, Juan Ramon; Magis, David ULg

Conference (2014, October 08)

The purpose of this talk is to present recent advances and developments of the R package catR. This package allows for random generation of response patterns under computerized adaptive testing (CAT) and ... [more ▼]

The purpose of this talk is to present recent advances and developments of the R package catR. This package allows for random generation of response patterns under computerized adaptive testing (CAT) and holds various options to select the first items, estimate ability, select the next item, stop the test and return final results. Two main improvements were realized. First, several rules for next item selection were added, among others, Kullback- Leibler, progressive and proportional methods. Second, catR was limited to dichotomous IRT models so far. The most recent update allows now for several polytomous IRT models, such as partial and generalized partial credit model, graded and modified graded response models, rating scale model, and nominal response model. All improvements will be shortly presented, both from a theoretical point of view and in terms of practical implementation in catR. If possible, several illustrative examples will be displayed in a short live demonstration of catR. [less ▲]

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See detail27èmes Entretiens Jacques Cartier
Lambert, Marie ULg

Conference (2014, October 07)

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See detailHow to manage HTA in 2014?
Krzesinski, Jean-Marie ULg

Conference (2014, October 07)

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See detailPrésentation de cas cliniques résolus ou non résolus
WANG, François-Charles ULg

Conference (2014, October 07)

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See detailIncrease in northern hemisphere stratospheric hydrogen chloride over recent years
Mahieu, Emmanuel ULg; Chipperfield, MP; Notholt, J et al

Poster (2014, October 07)

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See detailSolar irradiance modelling over Belgium using Regional Climate Models within the frame of a day-ahead photovoltaic production forecasting system
Beaumet, Julien ULg; Doutreloup, Sébastien ULg; Fettweis, Xavier ULg et al

Poster (2014, October 06)

WRF-ARW and MAR climate models performances for the modelling of solar irradiances over Belgium are evaluated using in-situ measurements at Sart-Tilman and Daussoulx. Different WRF-ARW settings are tested ... [more ▼]

WRF-ARW and MAR climate models performances for the modelling of solar irradiances over Belgium are evaluated using in-situ measurements at Sart-Tilman and Daussoulx. Different WRF-ARW settings are tested. Sigmoid model proposed by Ruis-Ariaz etal. (2010) is used to decompose solar irradiance into direct and diffuse fraction. The performance of this model using measured and modelled global irradiances is also evaluated. [less ▲]

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See detailNeuropathies proximales du membre supérieur
WANG, François-Charles ULg

Conference (2014, October 04)

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See detailL'épaule un carrefour complexe
WANG, François-Charles ULg

Conference (2014, October 04)

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See detailEt si ce n'était pas un canal carpien
FERON, Frédéric ULg; WANG, François-Charles ULg

Conference (2014, October 04)

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See detailNEAR-DEATH EXPERIENCES IN PATIENTS WITH LOCKED-IN SYNDROME
Charland-Verville, Vanessa ULg; Lugo Ramirez, Zulay del Rosario ULg; Jourdan, Jean-Pierre et al

Poster (2014, October 04)

Near-Death Experiences (NDEs) are classically associated with positive emotions like peacefulness, happiness and joy [1-3]. To date, few negative NDEs reports have been documented [4]. Although NDEs ... [more ▼]

Near-Death Experiences (NDEs) are classically associated with positive emotions like peacefulness, happiness and joy [1-3]. To date, few negative NDEs reports have been documented [4]. Although NDEs classically arise in the context of an acute severe brain damage, their associated memories are reported as being phenomenologically very rich and detailed [5]. To date, no satisfactory explanatory model exits to fully account for the rich phenomenology of NDEs following a severe acute brain injury [6]. Neurobiological hypotheses include cerebral hypoxia [7, 8] and temporal lobe dysfunctions [9] to account for some of the features occurring during NDEs. However, it has been recently shown that anoxic/hypoxic, traumatic and other supratentorial brain lesions do not seem to influence the content of a NDE when assessed with a standardized tool (i.e., Greyson NDE scale; [1]). Due to their particular brain lesion (i.e., pontine brainstem), locked-in syndrome (LIS) patients provide a unique opportunity to further investigate the neural correlates of NDEs. We here aimed at retrospectively characterizing the content of NDEs in patients with LIS having suffered from an acute brainstem lesion (cerebrovascular accident (CVA) or trauma; i.e., “LIS NDEs”) and to compare these experiences to those collected in a cohort of matched NDE experiencers after coma with supratentorial lesions (CVA or trauma; i.e., “classical NDEs”). [less ▲]

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See detailDiscussion de cas cliniques et atelier pratique
WANG, François-Charles ULg

Conference (2014, October 04)

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See detailOblitérations. Contacts et frictions dans "A Humument" de Tom Phillips
Delville, Michel ULg; Belloi, Livio ULg

Conference (2014, October 03)

Cette intervention examine "A Humument" de Tom Phillips en termes de contacts et de frictions entre le texte-source (un roman victorien) et sa réinterprétation par l'auteur.

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See detailRational Design of a Safe and Efficacious Attenuated Recombinant Vaccine Against Cyprinid Herpesvirus 3 Using Prokaryotic Mutagenesis and In Vivo Imaging System
Boutier, Maxime ULg

Conference (2014, October 02)

Cyprinid herpesvirus 3 (CyHV-3) is the causative agent of a lethal disease in common and koi carp. Since its emergence, in the late 1990s, CyHV 3 has caused severe economic losses worldwide creating a ... [more ▼]

Cyprinid herpesvirus 3 (CyHV-3) is the causative agent of a lethal disease in common and koi carp. Since its emergence, in the late 1990s, CyHV 3 has caused severe economic losses worldwide creating a need for a safe and efficacious vaccine. With this goal in mind, recombinant strains deleted for single gene were produced using prokaryotic recombination technologies. While producing such a recombinant for ORF134, we unexpectedly obtained a clone deleted for ORF56 and ORF57 in addition to the expected deletion of ORF134. Interestingly, this triple deleted recombinant replicated efficiently in vitro, exhibited an attenuated profile and induced an immune protection against a lethal challenge in vivo. To determine the role of each deleted locus in the phenotype of the triple deleted recombinant, a series of recombinant were produced and tested in vivo. Firstly, to investigate the role of ORF134 deletion, a double ORF56-57 deleted recombinant and an independent triple ORF56-57-ORF134 deleted recombinant were produced. These experiments revealed that ORF134 deletion did contribute significantly neither to the attenuation nor to the immune protection observed for the triple deleted recombinant. Secondly, to determine the relative importance of ORF56 and ORF57 deletion in the attenuation observed, two single deleted recombinants were produced for ORF56 and ORF57. These experiments demonstrated that ORF57 deletion, in contrast to ORF56 deletion, correlates with an attenuated phenotype. Based on its safety-efficacy profile, the ORF56-57 double deleted recombinant was selected as a candidate vaccine. Complementary experiments were performed to further investigate the potential of this strain as a safe and efficacious attenuated recombinant vaccine. The results obtained can be summarized as follows: (i) In vivo imaging (IVIS) of vaccinated fish challenged with a wild type strain expressing luciferase as a reporter gene, suggested that vaccination induces a sterile immunity at the portal of entry. (ii) Study of viral tropism by qPCR, IVIS, and histopathological analyses, demonstrated that in comparison to the wild type parental strain, the vaccine strain replicates at lower level, at later time post-infection and for a shorter period of time. (iii) Transmission studies demonstrated that there is no detectable spread of the vaccine from freshly vaccinated fish to naive fish located immediately down stream of vaccinated fish (water sharing). All together, the results of the present study demonstrate the potential of ORF56-ORF57 double deleted CyHV-3 recombinant strain for safe and efficacious mass vaccination of carp. [less ▲]

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See detailKnowledge transfer from Belgian government to medical doctors
MORTELMANS, Katrien; REMMEN, Roy; BERKEIN, Philip et al

Conference (2014, October 02)

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See detailLes châteaux industriels dans le bassin liégeois : typologie et étude de cas
Destatte, Julien ULg; Peters, Arnaud ULg; Van Velthem, Lionel

Conference (2014, October 01)

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See detailIntegrating lexis, gesture and discourse in spatial descriptions
Lemmens, Maarten; Perrez, Julien ULg

Conference (2014, October 01)

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See detail6-Years Experience of NBS for Hemoglobin Disorders using TMS
BOEMER, François ULg

Conference (2014, October)

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See detailAdherence to Continuous Positive Airway Pressure (CPAP) Therapy
Deflandre, Eric ULg; Degey, Stéphanie; BONHOMME, Vincent ULg et al

Poster (2014, October)

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See detailDesigning large-scale CO2 capture units with assessment of solvent degradation
Léonard, Grégoire ULg; Crosset, Cyril; Dumont, Marie-Noëlle ULg et al

Poster (2014, October)

Solvent degradation is a major drawback for the large-scale implementation of post-combustion CO2 capture due to amine consumption and emission of degradation products. In the present work, we refine a ... [more ▼]

Solvent degradation is a major drawback for the large-scale implementation of post-combustion CO2 capture due to amine consumption and emission of degradation products. In the present work, we refine a previous kinetic model for describing solvent oxidative and thermal degradation based on experimental results. The CO2 capture process is then modeled in Aspen Plus with assessment of solvent degradation. As a result, this work provides a useful tool for the identification of optimal operating conditions that minimize both the energy and environmental impacts of the process. [less ▲]

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See detailSinuso-nasal adenocarcinoma in a roe deer (Capreolus capreolus)
Volpe, Rosario ULg; Cassart, Dominique ULg; Neukermans, Axel et al

Poster (2014, October)

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See detailTrace element bioaccumulation and compartmentalization in the invasive algae Caulerpa racemosa var. cylindracea from the Calvi Bay, Corsica
Gobert, Sylvie ULg; Richir, Jonathan ULg

in Langar, H.; Bouafif, C.; Ouerghi, A. (Eds.) Proceedings of the 5th Mediterranean Symposium on Marine Vegetation (2014, October)

The algae Caulerpa racemosa var. cylindracea (Sonder) was first observed along Corsican coasts in 2002 (Ruitton et al., 2005), and more recently in the Calvi Bay (northwestern Corsica) in 2008. Numerous ... [more ▼]

The algae Caulerpa racemosa var. cylindracea (Sonder) was first observed along Corsican coasts in 2002 (Ruitton et al., 2005), and more recently in the Calvi Bay (northwestern Corsica) in 2008. Numerous works have studied the distribution of that invasive species and the factors driving its rapid expansion, as well as the resulting ecological impacts on native coastal communities (Klein and Verlaque, 2008). However, very little is known regarding C. racemosa biochemistry and its natural ability to concentrate trace elements (TEs). In the framework of the STARECAPMED project, this work therefore aimed to study the bioaccumulation and the compartmentalization of 19 TEs in this macroalgae. [less ▲]

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See detailIsocinétisme et muscles rotateurs d'épaule
Forthomme, Bénédicte ULg; Crielaard, Jean-Michel ULg; Kaux, Jean-François ULg et al

in Innovations technologiques et préhension (2014, October)

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See detailFiabilité et confiance
de Saint Georges, Marie-Christine; Haxhe, Stéphanie ULg

Conference (2014, October)

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See detailMesozoic marine crises and ichthyosaur history: a non-direct relationship
Fischer, Valentin ULg

Conference (2014, October)

Marine ecosystems underwent several profound crises throughout the Mesozoic; many of them are correlated with supra-regional to worldwide anoxic events. The impact of these crises is relatively well ... [more ▼]

Marine ecosystems underwent several profound crises throughout the Mesozoic; many of them are correlated with supra-regional to worldwide anoxic events. The impact of these crises is relatively well understood among animals occupying lower trophic levels but their influence on top predators of that time, fishes and marine reptiles, remains unclear. The fossil record of marine reptiles is of fluctuating quality but thoroughly revised taxonomic and phylogenetic frameworks now allow assessment of the influence of past climatic and oceanic changes on these top predators, by quantifying their cladogenesis and extinction rates across selected intervals. Here, I focus on ichthyosaurs, a successful clade of marine reptiles that colonized marine ecosystems during most of the Mesozoic. The ichthyosaur record indicates relatively few severe turnovers and a non direct relationship with environmental drivers, notably anoxic events. New fossils from France reveal the middle-late Norian extinctions did not eradicate the clade of whale-sized shastasaurid ichthyosaurs; similarly, the severe early Toarcian anoxic event, the end-Jurassic climate changes and several Cretaceous anoxic events did not impacted ichthyosaurs significantly, at least at the suprageneric level. On the other hand, severe turnovers or extinctions occurred during the latest Triassic and the Cenomanian and are coincident with a number of profound environmental and biotic changes. This indicates that unique drivers fail to explain the turnover patterns in ichthyosaur evolutionary history. Notably, oceanic anoxic events only impacted ichthyosaurs during the end-Cenomanian and did so during a period of intense climatic and biological upheavals. These major crises in ichthyosaur history are seemingly protracted over several million years and are probably best explained by a conjunction of causes. This is part of a wider project that will incorporate data from other contemporaneous groups to shed a new light on the general turnover patterns among marine top predators of the Mesozoic and the influence of ancient environmental changes in shaping their biodiversity. [less ▲]

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See detailIntérêt du signal T2 des adénomes hypophysaires à GH traités par analogues de la somatostatine - premiers résultats de l'étude IRMA#2
Potorac, Iulia ULg; PETROSSIANS, Patrick ULg; Daly, Adrian ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailNegative polarity as a trigger for the development of modal meaning
Davidse, Kristin; Van linden, An; Brems, Lieselotte ULg

Conference (2014, October)

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See detailVelocity and turbulence measurements for assessing the stability of riverbeds: a comparison between UVP and ADVP
Duma, Diana ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in 11th International Conference on Hydroscience & Engineering - "Hydro-Engineering for Environmental Challenges" (2014, October)

Maintaining the overall stability of active riverbeds requires a deep understanding of the complex interactions between turbulent flow forces and forces stabilizing the riverbed. Standard approaches do ... [more ▼]

Maintaining the overall stability of active riverbeds requires a deep understanding of the complex interactions between turbulent flow forces and forces stabilizing the riverbed. Standard approaches do not properly take into account the turbulence fluctuations in non-uniform flows, while these are of primary importance in the mechanisms determining the stability of stones. In a new approach, the flow forces are quantified by means of parameters combining explicitly the velocity and turbulence distributions over a certain water depth above the riverbed. In this paper, as an onset for using these newly developed bed stability parameters, we report on new experimental measurements of velocity and turbulent kinetic energy based on acoustic methods, whereas all previous uses at the new bed stability parameters relied on Laser PIV Techniques. For quasi-uniform and non-uniform flow conditions, velocity measurements were conducted with two complementary devices: an ultrasonic velocimeter probe (UVP) and an acoustic Doppler velocimeter profiler (ADVP). The results are compared and discussed in detail. A general consistency between the two types of measurements is obtained, while some discrepancies are highlighted close to the bed and tentative explanations are given. [less ▲]

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See detailInvestigation of shear stress evolution during neotissue growth in a perfusion bioreactor using 3d multiphysics modeling
Guyot, Yann ULg; Papantoniou, Ioannis; Schrooten, Jan et al

Conference (2014, October)

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See detailStudy of sex ratio and morphotypes of the Multicoloured Asian Ladybird, Harmonia axyridis Pallas in Belgian maize
Vandereycken, Axel ULg; Fassotte, Bérénice ULg; Barsics, Fanny ULg et al

Poster (2014, October)

Several insect species are known to have different morphotypes, an adaptation to heterogeneities in changing environments. This phenotypic plasticity could be a factor used by the Multicoloured Asian ... [more ▼]

Several insect species are known to have different morphotypes, an adaptation to heterogeneities in changing environments. This phenotypic plasticity could be a factor used by the Multicoloured Asian Ladybird, which is considered as an invasive species in Europe since its introduction in the 80’s. Harmonia axyridis has four major morphotypes: 2 melanic forms, conspicua and spectabilis; and 2 non-melanic, succinea and axyridis. In Belgium, only the three first are observed. Literature reports variations in morphotype frequencies, across native and introduced strains. These variations seem to be linked to climate (geographical and seasonal variation), with non-melanic forms being the most abundant in hot and arid climate. This study focused on the variation of morphotype abundance in H. axyridis according to season, field and gender. Adult ladybirds were caught from mid-July to mid-October 2012 into 5 maize fields. The proportions of observed morphotypes were compared according to the sampling season. The abundance of morphotypes was not significantly different through the fields; the observed ratios were 81.6%, 15% and 3.4% for succinea, spectabilis and conspicua respectively. Succinea was the most observed morphotype (χ2=755.8; P<0.001). The total number of collected males and females was the same with ratios of 48.2% and 51.8%: (χ2=0.93; P=0.33). The sex ratio was also not significantly different for each morphotype. There was no evolution of melanic and non-melanic form ratio according to the season, with 25.6% of melanic form in summer and 20.6% in autumn (χ2=1.22; P=0.27). Our results seem to show that morphotype adaptation according to the climate is not observed for Belgian ladybirds. [less ▲]

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See detailNumerical investigation of cut-edge effect using the Gurson-Tvergaard-Needleman model
Lemoine, Xavier; Tudor, Balan; Habraken, Anne ULg

in Procedia Engineering (2014, October)

In this contribution, the formability of sheet metal cut edges is investigated using damage model.Classical forming limit diagrams are known not to apply properly to the cut edges. However, with mild ... [more ▼]

In this contribution, the formability of sheet metal cut edges is investigated using damage model.Classical forming limit diagrams are known not to apply properly to the cut edges. However, with mild steels the sheet edges usually behave better than the Forming Limit Diagram prédictions, so this phenomenon has not been given sufficient attention. In contrast, for Advanced High Strengh Steels the cut edges exhibit reduced formability as compared to the plain sheet;this effect is very sensitive to the quality of the cutting process. The current investigation is aimed to evaluate the ability of available damage models to predict this effect on sample applications. The Gurson-Tvergaard-Needleman model is used and the material parameters for a Dual Phase are considered [1]. The effect of the cutting process is described by means of initial fields of equivalent plastic strain and porosity. The geometrical distribution and typical values for these two initial fields are devised based on literature . Numerical simulations of flat notched tensile tests are used within the FE code Abaqus/Explicit to illustrate the impact of the initial fields on the moment and the location of the failure initiation. The influence of the mesh size in the cutting-affected area is also investigated. The hole expansion test and a flat bending test are further simulated to investigate the influence of the cut edge. [less ▲]

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See detailLe cancer thyroïdien papillaire familial (FNMTC): études cliniques et génétiques chez 8 familles
VALDES SOCIN, Hernan Gonzalo ULg; Daly, Adrian ULg; Burlacu, C et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Française d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailOrthotopic liver transplantation for hepatocellular car- cinoma after successful downstaging: results from the Belgian multicentre cohort
Schreiber, J.; Lerut, J; Verslype, C et al

in Hepatology (Baltimore, Md.) (2014, October), 60(S1), 468550

Purpose: Successful downstaging of hepatocellular carcinoma (HCC) into the Milan criteria (MC) remains a controversial indication for orthotopic liver transplantation (OLT). In Belgium, successful ... [more ▼]

Purpose: Successful downstaging of hepatocellular carcinoma (HCC) into the Milan criteria (MC) remains a controversial indication for orthotopic liver transplantation (OLT). In Belgium, successful downstaging of HCC is an accepted non-standard- ized exception (NSE) for liver allocation. This NSE group rep- resents a unique cohort to analyse if OLT can be safely offered to patients with those extended allocation criteria. The aim of this study is to compare the overall and recurrence free survival after cadaveric OLT between patients with successful downstaging (MILDOWN) and patients always inside the MC (MILIN) from all Belgian transplant centres. Methods: We ret- rospectively analysed all patients listed for OLT with HCC and underlying cirrhosis between 12/2006 and 12/2011 from all Belgian liver transplant centres. Successful downstaging was defined as bringing a patient who was outside the MC into the MC after locoregional therapy (LRT). Results: Overall 381 patients were listed in Belgium during the study period. Of these, 320 received OLT. 248 were MILIN, 62 were MIL- DOWN and 10 were transplanted outside MC. Downstaging treatment included transarterial chemoembolization (TACE; n=26), radiofrequency (RF; n=9), transarterial radioembolisa- tion (TARE; n=4), resection (n=3), percutaneous ethanol injec- tion (n=2) and a combination of the above-mentioned therapies in 18 cases. In the MILIN group 67.3% received locoregional therapy before transplantation, with no significant differences in the distribution of treatment type compared to the MIL- DOWN group. At listing there were no significant differences between the MILIN and MILDOWN group for age, gender and underlying liver disease. Median time on waiting list between the two groups was similar (120 days vs. 115.5 days). Overall survival at 1 year was not significantly different between MILIN and MILDOWN (87.1% vs. 79%; p=0.120). 1.6% of patients were lost to follow-up in both groups. Although not significant, recurrence free survival at 1 year tended to be higher in the MILIN group than in the MILDOWN group (83.9% vs. 74.2%; p=0.073). Conclusion: In this large Belgian multicentre cohort, overall and recurrence free survival at 1 year are not signifi- cantly different between patients who have been downstaged successfully and patients who were always inside the Milan criteria. However, a longer follow up period will define, if the trend of lower survival in the successfully downstaged group becomes significant. Factors associated with HCC recurrence have to be identified. [less ▲]

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See detailLeucémie myéloblastique aiguë : sécrétion paranéoplasique de GH et de PRL ?
VALDES SOCIN, Hernan Gonzalo ULg; Potorac, Iulia ULg; DE PASQUAL, Aurelie ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailThe effect of deforestation rate on land tenure in Central AFrica
Gillet, Pauline ULg; Vermeulen, Cédric ULg; Feintrenie, Laurène

Poster (2014, October)

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See detailUne phéromone sexuelle chez la coccinelle asiatique, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae)
Fassotte, Bérénice ULg; Fischer, Christophe ULg; Durieux, Delphine ULg et al

Conference (2014, October)

A ce jour, aucune phéromone sexuelle n’a pu être mise en évidence chez les Coccinellidae. Cependant, diverses études suggèrent que de telles molécules sont impliquées dans la communication sexuelle chez ... [more ▼]

A ce jour, aucune phéromone sexuelle n’a pu être mise en évidence chez les Coccinellidae. Cependant, diverses études suggèrent que de telles molécules sont impliquées dans la communication sexuelle chez les coccinelles. Afin de vérifier cette hypothèse, nous avons collecté les composés organiques volatils émis par la coccinelle asiatique, Harmonia axyridis (Pallas), en présence ou en absence de pucerons. En présence de pucerons, les femelles vierges présentent un « comportement d’appel » qui est notamment associé à l’émission d’une phéromone sexuelle volatile chez plusieurs espèces de Coléoptères. D’autre part, des tests éthologiques ont démontré que les femelles émettent des composés volatils qui attirent les mâles à distance. Enfin, les prélèvements ont été analysés par chromatographie en phase gazeuse couplée à la spectrométrie de masse. Les analyses ont mis en évidence cinq composés volatils spécifiques provenant des femelles, aucun d’entre eux n’étant émis pas les mâles. L’identification a révélé la présence de (–)-β-caryophyllène, de β-élémène, de méthyl-eugénol, d’α-humulène et d’α-bulnésène, exclusivement produits par les femelles nourries de pucerons et dont les quantités respectives augmentent progressivement au cours de la période de prélèvement. Les résultats confirment donc que les femelles H. axyridis produisent une phéromone sexuelle volatile. Ceux-ci devraient permettre de promouvoir le développement de méthodes de gestion plus efficaces afin de manipuler les mouvements de cette coccinelle invasive et de réduire les impacts négatifs qu’elle occasionne sur la biodiversité. [less ▲]

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See detailUn phéochromocytome aux multiples mutations
VROONEN, Laurent ULg; Maiga, Ibrahima ULg; Persu, A et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailExpression et localisation immunohistochimique de KISS1 et de son récepteur GPR54 : étude du tissu thyroïdien non tumoral et d'une série de patients opérés d'un cancer thyroïdien papillaire
VALDES SOCIN, Hernan Gonzalo ULg; Munaut, Carine ULg; SCAGNOL, Irène ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Française d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailEvolution des populations de coccinelles indigènes et de l’espèce exotique, Harmonia axyridis Pallas, en Wallonie et en Région de Bruxelles-Capitale
Vandereycken, Axel ULg; Fassotte, Bérénice ULg; Durieux, Delphine ULg et al

Conference (2014, October)

Un inventaire des Coccinellidae provenant de la collection de l’unité d’Entomologie fonctionnelle et évolutive (ULg - Gembloux Agro-Bio Tech) a été réalisé sur une période s’étendant de 2001 à 2009. Cette ... [more ▼]

Un inventaire des Coccinellidae provenant de la collection de l’unité d’Entomologie fonctionnelle et évolutive (ULg - Gembloux Agro-Bio Tech) a été réalisé sur une période s’étendant de 2001 à 2009. Cette collection est essentiellement constituée de récoltes fournies par les étudiants de première Bachelier de Gembloux Agro-Bio Tech. A travers ce recensement, nous avons étudié l’évolution des espèces récoltées au sein de cette famille, en termes d’effectif relatif et de richesse spécifique. Notre étude s’est focalisée sur les données issues de Wallonie et de la Région de Bruxelles-Capitale, car trop peu de collectes ont été réalisées en Flandre. Parmi les individus identifiés, 27 espèces ont été observées, dont 21 appartiennent à la sous-famille des Coccinellinae, 2 à celle des Epilachninae et 4 à celle des Chilocorinae. La plupart des espèces sont communes à la Belgique. Cependant, Harmonia axyridis (Pallas 1773), espèce originaire du sud-est de l’Asie, a été introduite sur le territoire belge en 1997. Cette coccinelle exotique a fait son apparition dans les collectes de 2002 et son effectif ne cesse d’augmenter au fil des années prospectées. En parallèle à cette augmentation, une diminution de la richesse spécifique, ainsi que de l’effectif relatif d’Adalia bipunctata (L. 1758), de Propylea quatuordecimpunctata (L. 1758) et de Psyllobora vigintiduopunctata (L. 1758), est observée. [less ▲]

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See detailRugose corals at the Tournaisian-Viséan transition in the Central Taurides (S Turkey) - Palaeobiogeography and Palaeoceanography of the Gondwana margin
Denayer, Julien ULg

in 4th International Palaeontological Congress, Mendoza, Abstracts volume (2014, October)

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See detailAzione, testualizzazione, notazione
Dondero, Maria Giulia ULg

in Espressione e contenuto. Rivista on-line dell'AISS Associazione Italiana di Studi Semiotici (2014, October)

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See detailHypervitaminémie B12 : un piège diagnostique pour le biologiste et pour le clinicien ?
LUYCKX, Françoise ULg; Texeira, J; VALDES SOCIN, Hernan Gonzalo ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Française d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailHarmonia axyridis population study in agroecosystems
Vandereycken, Axel ULg; Fassotte, Bérénice ULg; Durieux, Delphine ULg et al

Poster (2014, October)

The Multicoloured Asian ladybird, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), is one of these species which was intentionally introduced for biological control and has spread from its native ... [more ▼]

The Multicoloured Asian ladybird, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), is one of these species which was intentionally introduced for biological control and has spread from its native range in Central and Eastern Asia to large parts of North and South America, Europe, and Africa. The decline of native species is linked to the spread and the aggressive behaviour of H. axyridis. From 2009, we evaluated the population densities of aphids predator and predator diversities, with a special focus on H. axyridis in agroecosystems of Wallonia (South of Belgium). First, field crops preferences of H. axyridis were determined. Later, changes linked to aphid’s predator populations over time were evaluated. Finally, H. axyridis population changes between two crop farming methods were also evaluated. Samplings performed in agroecosystems highlighted that the community of aphid's predator is composed of few dominant species: three coccinellids (Coccinella septempunctata L., P. quatuordecimpunctata L., and H. axyridis), one syrphid (Episyrphus balteatus De Geer), and one chrysopid (Chrysoperla carnea Stephens). We demonstrated that H. axyridis do not invade all crops at the same rate, maize and broad bean being more infested than wheat and potato at both larval and adult stages. Moreover, H. axyridis populations in maize have strongly increased from 2009 to 2011. Finally, we showed that organic farming do not contribute to increase the abundance of H. axyridis but leads to increase the total abundance of aphid’s natural enemies. [less ▲]

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See detailMise en place d'un Kid's Athletics pour les enfants de 5 à 8 ans: avis des parents, avis des entraîneurs et analyse critique
Wuillaume, Sandrine; Delcros, Vincent; Jidovtseff, Boris ULg

in Science et sports (2014, October), 27(Hors-série 1), 32-33

En Belgique, les compétitions proposées aux enfants de moins de 10 ans sont des modèles réduits des compétitions d'adultes. Face au constat de retard, la Ligue Francophone Belge d'Athlétisme a mis sur ... [more ▼]

En Belgique, les compétitions proposées aux enfants de moins de 10 ans sont des modèles réduits des compétitions d'adultes. Face au constat de retard, la Ligue Francophone Belge d'Athlétisme a mis sur pied un groupe de réflexion qui a décidé d'organiser une première compétition Kid's Athletics. [less ▲]

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See detailWP2: Drivers of change at sub-global and local scales
Gillet, Pauline ULg; Vermeulen, Cédric ULg; Boulaud, Anne-Laure et al

Conference (2014, October)

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See detailAnalyse du comportement et des attitudes d'enfants de primaire impliqués dans des pauses d'activité physique scolaires (PAPS). Etude de cas.
Cloes, Stéphanie; Cloes, Anne-Marie; Cloes, Marc ULg

in Science & Sports (2014, October), 29(Hors-série 1), 26

Malgré que l'activité physique à l'école est identifiée comme un facteur favorable à la réussite scolaire, la réalité de terrain montre que les instituteurs présentent pourtant des réticences à planifier ... [more ▼]

Malgré que l'activité physique à l'école est identifiée comme un facteur favorable à la réussite scolaire, la réalité de terrain montre que les instituteurs présentent pourtant des réticences à planifier des pauses mouvement pendant leurs activités. Dans cette étude, nous avons mis en place des pauses d'activité physique scolaire et avons analysés les comportement et attitudes des élèves concernés. [less ▲]

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See detailThe conceptualization of trace element flows within Posidonia oceanica meadows: a collaborative proposal to fill knowledge gaps
Richir, Jonathan ULg; Gobert, Sylvie ULg

in Langar, H.; Bouafif, C.; Ouerghi, A. (Eds.) Proceedings of the 5th Mediterranean Symposium on Marine Vegetation (2014, October)

The Mediterranean seagrass Posidonia oceanica (L.) Delile is regarded as a relevant indicator of bioavailable trace elements (TEs) since it efficiently and proportionally bioaccumulates these chemicals ... [more ▼]

The Mediterranean seagrass Posidonia oceanica (L.) Delile is regarded as a relevant indicator of bioavailable trace elements (TEs) since it efficiently and proportionally bioaccumulates these chemicals from its surrounding environment. Recent studies have further brought supplementary insights in our understanding of the processes driving TE kinetics within that species. But at a higher degree of organization, the distribution and flows of TEs between P. oceanica meadow components, i.e. seagrass shoots, epiphytes, associated algae and animals and detritus, have not been investigated yet. The present study therefore aims to propose a conceptualization model of P. oceanica meadows, regarded as the juxtaposition of the 5 separate components listed above exchanging flows of TEs between themselves and with their environment, i.e. water and sediment. This model can be drawn in energy circuit language. By writing such a model, one in essence is writing equations describing a system. To be relevant, its elaboration requires the compilation of a large amount of quantitative data. This conceptualization can thus be regarded as a collaborative innovation requiring scientists to fill the model through the continuous supplement of new data. In fine, this model will lead to the exact quantification of the role played by P. oceanica meadows in the coastal biogeochemistry of TEsin the Mediterranean. [less ▲]

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See detailAdherence to Continuous Positive Airway Pressure (CPAP) Therapy
Deflandre, Eric ULg; Degey, Stéphanie; BONHOMME, Vincent ULg et al

Poster (2014, October)

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See detailAnalyse qualitative d’un dispositif didactique visant à impliquer des élèves de primaire dans l’expression de leur besoin de mouvement
Cloes, Stéphanie; Cloes, Marc ULg

in Science & Sports (2014, October), 29(Hors-série 1), 25

Être capable de ressentir un mouvement et de l'exprimer est l'une des compétences qu'ils devraient avoir acquises à l'issue de l'enseignement fondamental. Il semble donc opportun de développer des ... [more ▼]

Être capable de ressentir un mouvement et de l'exprimer est l'une des compétences qu'ils devraient avoir acquises à l'issue de l'enseignement fondamental. Il semble donc opportun de développer des procédés susceptibles d'être exploités en classe. [less ▲]

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See detailTemplating calcium carbonate drug delivery carriers based on polyphosphoester copolymers
Ergül, Zeynep ULg; Debuigne, Antoine ULg; Calvignac, Brice et al

Poster (2014, October)

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See detailEffets d'un programme d'activité physique intergénérationnel réunissant seniors et enfants d'âge préscolaire
Mouton, Alexandre ULg; M. Henrioulle; Cloes, Marc ULg

in Science et sports (2014, October), 29(Hors-série 1), 8

Pour la première fois dans notre histoire, la génération d'enfants actuelle pourrait avoir une espérance de vie inférieure à celle de ses parents. Ce constat est lié au manque d'activité sportive chez nos ... [more ▼]

Pour la première fois dans notre histoire, la génération d'enfants actuelle pourrait avoir une espérance de vie inférieure à celle de ses parents. Ce constat est lié au manque d'activité sportive chez nos enfants. [less ▲]

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See detailMacroprolactinome pédiatrique sporadique associé à une mutation germinale AIP R304Q: Rémission quatre ans après l'interruption d'un traitement par Cabergoline.
VALDES SOCIN, Hernan Gonzalo ULg; Potorac, Iulia ULg; Janin, N et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailDysthyroïdies iatrogènes
Maiga, Ibrahima ULg; VALDES SOCIN, Hernan Gonzalo ULg; DELWAIDE, Jean ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Française d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailOptimal Assignment of Off-Peak Hours to Lower Curtailments in the Distribution Network
Merciadri, Luca ULg; Mathieu, Sébastien ULg; Ernst, Damien ULg et al

in Proceedings of the 5th European Innovative Smart Grid Technologies (ISGT) (2014, October)

We consider a price signal with two settings: off-peak tariff and on-peak tariff. Some loads are connected to specific electricity meters which allow the consumption of power only in off-peak periods ... [more ▼]

We consider a price signal with two settings: off-peak tariff and on-peak tariff. Some loads are connected to specific electricity meters which allow the consumption of power only in off-peak periods. Historically, off-peak periods were located during the night and on-peak periods during the day. Changing the assignment of off-peak periods is an easy method for distribution system operators to access to the flexibility of small consumers. This solution can be implemented quickly as the infrastructure needed already exists in some countries. We propose a mixed-integer linear model to assign optimally the off-peak hours so as to minimize a societal cost. This cost gathers together the cost of electricity, the financial losses due to energy curtailments of photovoltaic installations and the loads' wellbeing. Our model considers automatic tripping of inverters and constraints of the electrical distribution networks. Simulation results show that the new disposition of off-peak hours could reduce significantly the photovoltaic energy curtailed in the summer. [less ▲]

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See detailPreparations for the use of Raman spectrometers on Mars
Malherbe, Cédric ULg; Ingley, Richard; Hutchinson, Ian B. et al

Conference (2014, October)

Raman spectroscopy has been selected as a non-destructive powerful analytical method for forthcoming planetary exploration. In the context of the upcoming ExoMars and NASA 2020 missions (developed by the ... [more ▼]

Raman spectroscopy has been selected as a non-destructive powerful analytical method for forthcoming planetary exploration. In the context of the upcoming ExoMars and NASA 2020 missions (developed by the European Space Agency, IKI Roscomos and NASA) analysis of the biological and geological terrestrial analogues using laboratory instrumentation is of great importance; especially testing the performance of flight-like operating modes and conditions on the feasibility of flight instruments meeting their science goals. Here we present a set of measurements of terrestrial analogues (among them desert varnishes) selected in preparation for in-situ Raman analysis on Mars. Laboratory instrumentation has been used to fully characterise the samples in addition to being operated in modes consistent with ExoMars RLS instrument flight designs, sample preparation and delivery. We discuss the performance of the spectrometers regarding the detection of the target signatures and their geological context. The impact of instrument operating modes and application of flight instrument sampling philosophy (i.e. spot size, grain size, number of target locations, sample preparation and delivery) on the signal intensity and the limits of detection are also discussed. [less ▲]

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See detailNeurofibromatose et phéochromocytome métastatique
VROONEN, Laurent ULg; Maiga, Ibrahima ULg; HAMOIR, Etienne ULg et al

in Abstract book - Annales d'Endocrinologie : 31ème Congrès de la Société Françaose d'Endocrinologie, Lyon 5-8 novembre 2014 (2014, October)

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See detailInter-professional cooperation between family, occupational and social insurance physicians in managing long-term sickness absence
Mairiaux, Philippe ULg; Vanmeerbeek, Marc ULg; Schippers, Nathalie ULg et al

Conference (2014, September 30)

Background In the Belgian health system, sickness absence (SA) management implies complementary roles for general practitioners (GPs), social insurance physicians (SIPs) and occupational physicians (OPs ... [more ▼]

Background In the Belgian health system, sickness absence (SA) management implies complementary roles for general practitioners (GPs), social insurance physicians (SIPs) and occupational physicians (OPs): GPs deliver sick notes and treatment, SIPs control SA benefits and OPs strive to adapt work environments to workers’ remaining capacities. In practice however, there is little cooperation between the three physicians. In 2009, the Ministry of Employment commissioned a study to identify GP-OP-SIP cooperation channels in order to prevent long-term work disability. Methods The study involved two phases. 1) Researchers from the three groups agreed on 15 proposals to enhance cooperation: to establish a formal contact between GP, SIP and OP for patients with > 3 months SA (n=3) ; SIP decision to end SA benefit to be forwarded to the GP (n=2) ; work-related information to be provided by the OP to GP and/or SIP (n=4); website giving contact data of GPs, SIPs, and OPs (n=2) ; initial and continuous education focusing on inter-physician cooperation (n=3); electronic data exchange when dealing with long-term SA (n=1). 2) A Delphi study was conducted in 2012 to validate these proposals: 61 experts representing professional groups of physicians (GP, SIP, OP), patients, government, employers and labor unions were asked to participate. A 18-items questionnaire (the 15 proposals and 3 open questions) was used in a 2-round Delphi study. Proposals were accepted if 80% of experts agreed. For drafting the final proposals, the research team relied on a multidisciplinary expert group. Results Participation rate was 77% (47/61 experts) in round 1 and 7 out of the 15 proposals were accepted. During round 2, participation rate was 94% (44/47); 2 of the remaining proposals reached agreement level. Public authorities were thus advised to invest in a) promotion of pre-return to work visit with the OP for sick-listed patients; b) a website with OPs contact data; c) joint guidelines for return to work guidance; d) joint training of the 3 physician groups; 5) methods ensuring safe electronic information exchange. Conclusions The need for inter-physician cooperation in disability management may exceed individual goodwill and should best be organised by public authorities. The current study may be a first step in this process. [less ▲]

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See detailModeling of the cyclic lipodepsipeptide Pseudodesmin A self-assembly through molecular dynamic simulations
Crowet, Jean-Marc ULg; Sinnaeve, Davy; Fehér, Krisztina et al

Conference (2014, September 30)

The self-assembly of short peptides into supramolecular structures represents an active field of research with potential applications, ranging from material sciences to medicine. Pseudodesmine A is a ... [more ▼]

The self-assembly of short peptides into supramolecular structures represents an active field of research with potential applications, ranging from material sciences to medicine. Pseudodesmine A is a cyclic lipodepsipeptide of nine residues which presents a moderate antibacterial activity and whose structure has been resolved by X-ray and NMR. In acetonitrile, Pseudodesmine A is monomeric while in chloroform, it has the same structure but assembles in a supramolecular complex. This structure could associate with membranes and be responsible for the biological activity of the peptide. Comparison of NMR data in the two solvents has given indications on the intermolecular contacts that arise in chloroform and a model for the self-association was proposed. To study in more details this assembly, molecular dynamics simulations have been carried on. The resultswere compared with detailed information given by NMR, regarding the dimensions of the assembly and the orientation of the individual peptide building blocks inside the supramolecular assembly. In acetonitrile, the simulations show that the peptide has transient interactions while in chloroform, interactions between monomers are always observed. In agreement with NMR, these interactions arise mainly between the backbone protons of the LEU1 and the GLN2, the GLN2 sidechain and the loop located on the opposite end of the monomer structure. From 10 simulations of dimerization, hydrogen bonds were followed and specific interaction patterns were identified regarding the hydrogen bonds formed. Peptide interactions are mainly described by 13 interaction patterns characterized by 2 to 4 hydrogen bonds. In dimers, the peptides can have a linear, a perpendicular or a side by side configuration. From the linear dimer, it is possible to reconstruct filaments and, by combining a linear and a lateral dimer, it is possible to build fibrils with multifilaments, as found in the NMR-derived model. Two self-consistent supramolecular models can be built from dimers and they present a very good correlation with NMR data regarding the supramolecular organization. Besides, the perpendicular dimer can gives peptide rings that can also explain the potential ability of this peptide to form ion pores in membranes. [less ▲]

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See detailFrench good practice guidelines for the management of the low back pain risk among workers exposed to manual handling
Petit, Audrey; Mairiaux, Philippe ULg; FASSIER, Jean-Baptiste et al

Poster (2014, September 29)

Background Manual handling of loads (MHL) is a widespread practice in the workplace and is the leading cause of work accidents. In particular, MHL is associated with a risk of low back injuries which can ... [more ▼]

Background Manual handling of loads (MHL) is a widespread practice in the workplace and is the leading cause of work accidents. In particular, MHL is associated with a risk of low back injuries which can compromise staying at work and worker's career in the case of recurrence or chronicity. This communication aims to set forth the French occupational Guidelines for the management of the low back pain (LBP) risk among workers exposed to MHL, published in October 2013. Methods These Good Practice Guidelines were written according to the Clinical Practice Guidelines method proposed by the French National Authority for Health. They emanated from a synthesis of the literature by a multidisciplinary working party of 24 experts and were peer reviewed by a committee of 50 experts. These Guidelines are designed to define the components of an appropriate surveillance program for all workers exposed to MHL activities at the workplace and especially suffering from LBP and still at work, or suffering LBP and on sick leave. Results Because of the potential impact on workers’ fears and beliefs, the information provided by the various actors must be consistent, or even reassuring in relation to the prognosis of LBP. Among LBP workers, it is recommended to look for signs of severity or an underlying disease at the acute, subacute and chronic stages of LBP; to encourage continuation or resumption of physical activity; situate the current episode of LBP in the worker’s work history (recent changes of working conditions) and evaluate the impact of LBP on the worker’s job. In the case of persistent or recurrent LBP, it is recommended to evaluate biopsychosocial and socioeconomic risk factors likely to influence chronicity, prolonged incapacity and delay return to work. If workers are on prolonged and/or repeated sick leave for LBP, a pre-return-to-work visit is recommended to evaluate the pain and functional disability and their repercussions, as well as the main factors of prolonged work incapacity; encourage and help the worker to develop a return to work dynamic; identify the main difficulties related to work and possible job adjustments and evaluate the need to initiate a job staying at work approach. Conclusions Primary, secondary and tertiary prevention are necessary for the management of low back pain at work. [less ▲]

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See detailFITNESS EVALUATION OF A RECOMBINANT MURINE NOROVIRUS DURING SERIAL PASSAGES IN CELL CULTURE
Oliveira-Filho, Edmilson; Di Felice, Elisabetta; Toffoli, Barbara et al

Poster (2014, September 28)

Noroviruses are single stranded positive sense RNA viruses which can infect human and different animal species. Human norovirus (NoV) infections are among the most important causes of gastroenteritis in ... [more ▼]

Noroviruses are single stranded positive sense RNA viruses which can infect human and different animal species. Human norovirus (NoV) infections are among the most important causes of gastroenteritis in both children and adults. Infections often occur as outbreaks which may be foodborne. Due to the lack of an efficient cell culture system as well as a workable animal model, many aspects of the NoV infection in human are still poorly understood. The murine norovirus (MuNoV) grows easily in cell culture in contrast to the Human NoV, and constitutes an excellent animal model. Recombination can dramatically change virulence properties of the viruses and has been evidenced in silico for different human NoV strains isolated from clinical cases. Recently, after in vitro coinfection of RAW264.7 cells with parental MuNoV strains CW1 and Wu20, we obtained a recombinant Wu20/CW1 strain. This recombinant strain showed reduced plaque size compared to the parental strains. The aim of the study was to observe and molecularly characterize the natural genetic evolution of the recombinant MuNoV strain across in vitro replications. Viral fitness is a complex concept. Here we defined this fitness as the ability of a viral population to adapt to the cell culture system. Thus, the recombinant strain was serially replicated in vitro in RAW264.7 cells (up to 14 passages). Viral plaque sizes of early and late progenies were compared with the Image J software. A significant difference was shown between them with the Mann and Whitney non parametric statistical test. Afterwards, viruses from different cell passages were cloned and sequenced. The average plaque size increased from the earlier to the later progenies (from 0.1 mm2 to around 0.5 mm2). Molecular investigations are currently performed in order to specify in which genetic region mutations occur and whether or not this could explain fitness modifications during in vitro evolution. In addition, two other parameters of in vitro virulence modification will be investigated: (i) virus production and (ii) one step growth kinetics. The data should provide interesting information about genetic evolution in the genus Norovirus, especially regarding recombination events and explain how a recombinant strain, first disadvantaged compared to its parental strains, could regain fitness by genetic evolution. [less ▲]

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See detailDie Rezeption Thibauts in Belgien und Frankreich
Gerkens, Jean-François ULg

Conference (2014, September 27)

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See detailDysphasie : Réflexions autour de la définition et des critères diagnostiques
Leclercq, Anne-Lise ULg; Maillart, Christelle ULg

in Les entretiens de Bichat : les entretiens d'orthophonie 2014 : Les "dys", état de l'art et orientations cliniques (2014, September 27)

Specific language impairment refers to a non-homogeneous group: linguistic and non-linguistic abilities differ from one child to another. Increasing knowledge in this field has led to clarify both the ... [more ▼]

Specific language impairment refers to a non-homogeneous group: linguistic and non-linguistic abilities differ from one child to another. Increasing knowledge in this field has led to clarify both the definition and the diagnostic criteria in order to facilitate its diagnosis. However, the clinical complexity of this trouble questions the relevance of these diagnostic criteria. The present article intends to think about the clinical diagnostic of specific language impairment in order to allow informed decision making during its assessment and therapy. [less ▲]

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See detailLe secret des crèmes foisonnées
Petrut, Raul Flaviu ULg; Danthine, Sabine ULg; Blecker, Christophe ULg

Poster (2014, September 26)

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See detailEFFICACY and Characterization of THE LACTOPEROXIDASE SYSTEM, A NATURAL BIOLOGICAL PESTICIDE
Bafort, Françoise ULg; Perraudin, Jean-Paul; Jijakli, Haissam ULg

Conference (2014, September 26)

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See detailGenericity and classes of ultradifferentiable functions
Esser, Céline ULg

Conference (2014, September 26)

As surprising as it may seem, there exist infinitely differentiable functions which are nowhere analytic. When such an unexpected object is found, a natural question is to ask whether many similar ones ... [more ▼]

As surprising as it may seem, there exist infinitely differentiable functions which are nowhere analytic. When such an unexpected object is found, a natural question is to ask whether many similar ones may exist. A classical technique is to use the Baire category theorem and the notion of residuality. This notion is purely topological and does not give any information about the measure of the set of objects satisfying such a property. In this purpose, the notion of prevalence has been introduced. Moreover, one could also wonder whether large algebraic structures of such objects can be constructed. This question is formalized by the notion of lineability. The first objective of this talk is to go further into the study of nowhere analytic functions. It is known that the set of nowhere analytic functions is residual and lineable in C^infty([0, 1]). We prove that the set of nowhere analytic functions is also prevalent in this space. Those results of genericity are then generalized using Gevrey classes, which can be seen as intermediate between the space of analytic functions and the space of infinitely differentiable functions. We also study how far such results of genericity could be extended to spaces of ultradifferentiable functions, defined using weight sequences. [less ▲]

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See detailDetection of non-concave and non-increasing spectra: Snu spaces revisited with wavelet leaders
Esser, Céline ULg

Conference (2014, September 26)

Our objective is to study the pointwise regularity of functions via their multifractal spectrum. Computing the multifractal spectrum of a function using directly its definition is an unattainable goal in ... [more ▼]

Our objective is to study the pointwise regularity of functions via their multifractal spectrum. Computing the multifractal spectrum of a function using directly its definition is an unattainable goal in most of the practical cases, but there exist heuristic methods, called multifractal formalisms, which allow to estimate this spectrum and which give satisfactory results in many situations. The Frisch-Parisi conjecture, classically used and based on Besov spaces, presents two disadvantages: it can only hold for spectra that are concave and it can only yield the increasing part of spectra. Concerning the first problem, the use of S spaces allows to deal with non-concave increasing spectra. Concerning the second problem, a generalization of the Frisch-Parisi conjecture obtained by replacing the role played by wavelet coefficients by wavelet leaders allows to recover the decreasing part of concave spectra. We present a combination of both approaches to define a new formalism derived from large deviations based on statistics of wavelet leaders. We also present the associated function space. [less ▲]

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See detailAvant-Propos. Le statut unique : much ado about nothing ?
Kéfer, Fabienne ULg

in Kéfer, Fabienne (Ed.) L'harmonisation des statuts entre ouvriers et employés (2014, September 26)

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See detailDevant le forum de la perception interne. Sur les objets d’ordre supérieur III
Zincq, Aurélien ULg

Conference (2014, September 25)

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See detailMéthodologie de lecture de la représentation graphique d’une opération urbaine – Cas d’Europan Détermination des niveaux d’agrégations graphiques « n.a.g. » et des matrices graphiques « m.g. »
Boutemadja, Abdelkader ULg

in Acte du colloque COMMON 14 (2014, September 24)

Dans le cadre de cet article, nous allons expliquer la démarche qui nous a permis d’approcher la question de la représentation graphique du projet d’opération urbaine. Il s’agit pour nous de bien cerner ... [more ▼]

Dans le cadre de cet article, nous allons expliquer la démarche qui nous a permis d’approcher la question de la représentation graphique du projet d’opération urbaine. Il s’agit pour nous de bien cerner la problématique de la représentation graphique et son lien avec la notion de projet en tant qu’outil de communication, de transmission de savoir et d’évolution du projet. C’est au travers d’une lecture du processus évolutif basée sur la systémique que nous allons proposer une démarche originale pour mieux comprendre les productions en termes de représentation graphique du projet. [less ▲]

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See detailAn ethnoprimatological approach of the human-macaque interactions at the Ubud Monkey Forest, Bali (Indonesia)
Brotcorne, Fany ULg; Fuentes, Agustin; Wandia, I Nengah et al

Conference (2014, September 24)

Macaque tourism, i.e. a tourist activity focusing on wild macaques as main attraction, is an example of the bourgeoning and diversified human-macaque interactions in Southeast Asia. Although both people ... [more ▼]

Macaque tourism, i.e. a tourist activity focusing on wild macaques as main attraction, is an example of the bourgeoning and diversified human-macaque interactions in Southeast Asia. Although both people and macaques can benefit from their interactions at tourist sites, this activity also raises several conservation and management issues which are essential to understand in order to promote a sustainable coexistence. Using an ethnoprimatological approach, we provide here an assessment of the effect of a long-term management regime at the very popular tourist Ubud Monkey Forest in Bali, Indonesia. Over a four-month period in 2013, we characterized the visitor-macaque interactions with ethological methods and we compared our data with those collected 12 years earlier by Fuentes and colleagues. In parallel, we conducted a questionnaire survey, interviewing 99 Balinese people to assess their attitudes towards macaques and the Monkey Forest. Our results confirmed that the management efforts to reduce the aggressiveness of macaques towards visitors have been effective. Indeed, we observed a considerable reduction of the frequency and intensity of agonistic interspecies interactions. However, the interactions between macaques and visitors frequently involved close physical contact, such as during provisioning. Men on the human side, and adult or subadult males on the macaque side, were the groups the most frequently involved in these types of interaction. A reinforcement of the management practices limiting close interspecies contact interactions by targeting the most exposed groups, is therefore necessary in order to reduce the risk of pathogen cross-species transmission. Our questionnaire survey revealed globally a high level of tolerance of local people towards macaques in Ubud. These positive attitudes were determined by the economic and cultural benefits derived from the macaque presence and tourism activity, as far as they compensate for the nuisances caused by macaques. Crop raiding in cultivated fields surrounding the Monkey Forest was still a source of tension which would require further management efforts including the development of open buffer zones. [less ▲]

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See detailWhat do we know about Lepilemur in Northwest Madagascar?
Wilmet, Leslie ULg; Vermeulen, Cédric ULg; Beudels Jamar, Roseline C. et al

Conference (2014, September 24)

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See detailObjets réels et objets idéaux. Sur les objets d’ordre supérieur II
Zincq, Aurélien ULg

Conference (2014, September 23)

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See detailIRGA GAS SAMPLING SYSTEM DIMENSIONING: LABORATORY AND FIELD EXPERIMENTS
De Ligne, Anne ULg; Joly, Lilian; Cousin, Julien et al

Poster (2014, September 23)

The gas sampling system (GSS), which carries air from the sampling point to the IRGA, is an essential component of the eddy covariance system. It has to meet several constraints, among which minimizing ... [more ▼]

The gas sampling system (GSS), which carries air from the sampling point to the IRGA, is an essential component of the eddy covariance system. It has to meet several constraints, among which minimizing high frequency attenuation of concentration measurement and keeping pressure drop in the measurement cell in an acceptable range. Rain cup, filters, tubes and pumps are key elements of this system and need proper dimensioning. The elaboration of the ICOS protocol for IRGA required such dimensioning and optimization. Laboratory and field measurements were carried out with this aim. In the laboratory, a dynamic calibration bench was developed to investigate experimentally the pressure drop and the concentration fluctuation attenuation caused by different filters. In the field, three LI-7200 equipped with different GSS were installed and run at the Dorinne Terrestrial Observatory (ICOS-Belgium). Main experiment conclusions were that: • The shape and size of the rain cup has a critical impact on cut off frequencies • The filter porosity and size has a critical impact on pressure drop • Filter heating is necessary in order to avoid condensation and filter blocking These experiments led to the definition of the GSS functioning range that is finally proposed in the ICOS IRGA protocol. [less ▲]

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See detailBridging the gap from Academia to business : how companies can help to bridge the gap ?
Morant, Michel ULg

Conference (2014, September 23)

The contribution describes how large companies can help technology spin offs to get on the market, by explaining some examples form ULg spin off portfolio

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See detailOdour measurement networks: e-noses and emission data
Romain, Anne-Claude ULg

Conference (2014, September 23)

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See detailDe l’importance des échelles dyadiques dans les espaces Snu
Kleyntssens, Thomas ULg; Nicolay, Samuel ULg

Conference (2014, September 23)

Le but de l’analyse multifractale est de fournir une méthode permettant d’approximer le spectre de singularités d’une fonction. En 1985, Frisch et Parisi ont proposé un premier formalisme. D'autres ... [more ▼]

Le but de l’analyse multifractale est de fournir une méthode permettant d’approximer le spectre de singularités d’une fonction. En 1985, Frisch et Parisi ont proposé un premier formalisme. D'autres formalismes, basés sur les coefficients d'ondelettes, ont été introduits (ex WLM). Cependant, de part leurs natures, ces méthodes ne peuvent détecter que des spectres concaves. En 2004, Jaffard introduit les espaces Snu pour palier à ce problème. Ces espaces sont inclus dans une intersection d'espaces de Besov. Dans cet exposé, je présente une généralisation des espaces Snu. Ceux-ci sont mis en relation avec les espaces de Besov généralisés et une mise en pratique est présentée. [less ▲]

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See detailSeasonal and inter-annual variability of photosynthetic capacity in a temperate forest
Hurdebise, Quentin ULg; Vincke, Caroline; Soubie, Rémy et al

Poster (2014, September 23)

In temperate forests, the relation between vegetation phenology and carbon sequestration variability remains to be explored. To study phenology impact on CO2 fluxes, two photosynthetic capacity indicators ... [more ▼]

In temperate forests, the relation between vegetation phenology and carbon sequestration variability remains to be explored. To study phenology impact on CO2 fluxes, two photosynthetic capacity indicators were used : NEE at light saturation (NEEsat) and green proportion in canopy pictures (gcc). Correlations between these indicators were investigated at seasonal and inter-annual scale. [less ▲]

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