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See detailA Novel Methodology for Hybrid Fire Testing
Sauca, Ana ULg; Gernay, Thomas ULg; Robert, Fabienne et al

in Proceedings of the 6th European Conference on Structural Control (2016, July 11)

This paper describes a novel methodology for conducting stable hybrid fire testing (HTF). During hybrid fire testing, only a part of the structure is tested in a furnace while the reminded structure is ... [more ▼]

This paper describes a novel methodology for conducting stable hybrid fire testing (HTF). During hybrid fire testing, only a part of the structure is tested in a furnace while the reminded structure is calculated separately, here by means of a predetermined matrix. Equilibrium and compatibility at the interface between the tested “physical substructure” and the “numerical substructure” is maintained throughout the test using a dedicated algorithm. The procedures developed so far are sensitive to the stiffness ratio between the physical and the numerical substructure and therefore they can be applied only in some cases. In fire field, the stiffness of the heated physical substructure may change dramatically and the resulting change in stiffness ratio can lead to instability during the test. To overcome this drawback, a methodology independent of the stiffness ratio has been developed, inspired from the Finite Element Tearing and Interconnecting (FETI) method, which has been originally developed for substructuring in numerical analyses. The novel methodology has been successfully applied to a hybrid fire test in a purely numerical environment, i.e. the physical substructure was also modelled numerically. It is shown that stability does not depend on the stiffness ratio and that equilibrium and compatibility can be consistently maintained at the interface during the fire. Finally, the ongoing experimental program aimed at employing and experimentally validating this methodology is described. [less ▲]

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See detailHieroglyphic encoding: The Thot Sign-List (TSL) data model and the hieroglyphic signs in Unicode
Polis, Stéphane ULg; Rosmorduc, Serge

Conference (2016, July 11)

In this paper, we review issues related to the existing hieroglyphic sign-lists, focusing especially on the problematic aspects of the 'Manuel de Codage' (1988) and of the so-called 'Hieroglyphica' (2000 ... [more ▼]

In this paper, we review issues related to the existing hieroglyphic sign-lists, focusing especially on the problematic aspects of the 'Manuel de Codage' (1988) and of the so-called 'Hieroglyphica' (2000) for font-designers and users alike. We propose and discuss a data model for the Thot Sign-List (TSL, in prep.). This data model shall lead to the implementation of a structured and systematically referenced hieroglyphic repertoire, which should ultimately allow a sound extension of the Egyptian Hieroglyphs in Unicode. [less ▲]

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See detailComputerized adaptive testing and multistage testing with R
Magis, David ULg; Yan, Duanli; von Davier, Alina

Conference (2016, July 11)

The goal of this workshop is to provide a practical (and brief) overview of the theory on computerized adaptive testing (CAT) and multistage testing (MST), and illustrate the methodologies and ... [more ▼]

The goal of this workshop is to provide a practical (and brief) overview of the theory on computerized adaptive testing (CAT) and multistage testing (MST), and illustrate the methodologies and applications using R open source language and several data examples. The implementations rely on the R packages catR and mstR that have been already or are being developed and include some of the newest research algorithms developed by the authors. This workshop will cover several topics: the basics of R, theoretical overview of CAT and MST, CAT and MST designs, assembly methodologies, catR and mstR packages, simulations and applications. The intended audience for the workshop is undergraduate/graduate students, faculty, researchers, practitioners at testing institutions, and anyone in psychometrics, measurement, education, psychology and other fields who is interested in computerized adaptive and multistage testing, especially in practical implementations of simulation using R. [less ▲]

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See detailGestion des flux patients et surpopulation des urgences : Heurs et malheurs de la fonction de « Bed Manager ».
GILLET, Aline ULg; Minder, Anaïs ULg; Nyssen, Anne-Sophie ULg et al

Conference (2016, July 11)

For many years, emergency departments (ED) overcrowding has become a major issue in Public Health. Many studies have demonstrated the efficiency of flow management coordination on this recurrent problem ... [more ▼]

For many years, emergency departments (ED) overcrowding has become a major issue in Public Health. Many studies have demonstrated the efficiency of flow management coordination on this recurrent problem, by offering an interface between the ED, the hospital and out-of-hospital structures and by coordinating patients’ movements towards hospital care units. This was the basis for the implementation of "bed management" coordination program in the ED of the University Hospital of Liège in January 2014. The present study evaluates the adequacy of the Bed Manager (BM) activity with actual ED and hospital workload. Our results describe the rate of intra-hospital patients’ transfers according to the adequacy of the destination unit and time delays for these transfers. Head nurses from specific care units were interrogated about their perceptions of BM activity. We are now convinced by the importance of a participative approach in the development of ED bed management and working procedures, as well as the usefulness of further studies to explore this complex activity. [less ▲]

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See detailPegOpera Version 6.1 PRO
MAGERMANS, POL ULg; Everbecq, Etienne ULg; Grard, Aline ULg et al

Software (2016)

Le logiciel PegOpera est un outil scientifique et opérationnel utilisé entre autres par les gestionnaires de l’eau dans les champs d’applications de la Gestion Intégrée des Ressources en Eau. Développé à ... [more ▼]

Le logiciel PegOpera est un outil scientifique et opérationnel utilisé entre autres par les gestionnaires de l’eau dans les champs d’applications de la Gestion Intégrée des Ressources en Eau. Développé à l’Aquapôle de l’université de Liège, il est composé : - du modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux), un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières - d’une interface utilisateurs conviviale permettant son utilisation aisée - Le modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières en fonction des rejets et apports de pollution (relation pression-impact). Développé depuis la fin des années 1980 à l’université de Liège, il permet d'orienter les choix des opérateurs publics et privés en matière de gestion des eaux de surface à l'échelle des petits et grands bassins versants. Cette version 6.1 du logiciel intègre les développements réalisés lors de la deuxième année du programme de recherche Pegase Opera II soutenu par 4 Agences de l'eau françaises. Les principaux nouveaux développements intégrés dans cette version 6.1 concernent principalement : - Le développement de nouveaux outils de validation globale - L’organisation du modèle Pegase 6 Orienté Objet en modules - Le développement de nouveaux outils d’importation des données - Le développement d’outils pour utiliser des « débits reconstitués » - Le passage de certains fichiers de données au format xml afin de permettre la simulation de nouveaux processus et de nouvelles substances [less ▲]

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See detailPEGASE OPERA II PRÉSENTATION DES TRAVAUX EFFECTUÉS L’ANNÉE 2
Everbecq, Etienne ULg; MAGERMANS, POL ULg; Grard, Aline ULg et al

Report (2016)

Le logiciel PegOpera est un outil scientifique et opérationnel utilisé entre autres par les gestionnaires de l’eau dans les champs d’applications de la Gestion Intégrée des Ressources en Eau. Développé à ... [more ▼]

Le logiciel PegOpera est un outil scientifique et opérationnel utilisé entre autres par les gestionnaires de l’eau dans les champs d’applications de la Gestion Intégrée des Ressources en Eau. Développé à l’Aquapôle de l’université de Liège, il est composé : - du modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux), un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières - d’une interface utilisateurs conviviale permettant son utilisation aisée Le modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières en fonction des rejets et apports de pollution (relation pression-impact). Développé depuis la fin des années 1980 à l’université de Liège, il permet d'orienter les choix des opérateurs publics et privés en matière de gestion des eaux de surface à l'échelle des petits et grands bassins versants. Le modèle et le logiciel sont développés en permanence. En juillet 2014, 4 Agences de l’eau Françaises ont décidé de continuer à supporter les développements du modèle et du Logiciel avec comme objectifs principaux d’apporter des améliorations scientifiques afin d’améliorer la connaissance du fonctionnement écologique des cours d’eau, ainsi que de maintenir l’outil performant, de haut niveau technologique, en adéquation avec les besoins des opérateurs. Ce programme triennal (2014-2016), appelé PEGASE OPERA 2, s’articule sur 3 axes principaux : • Axe 1 : Développements scientifiques du modèle PEGASE (modélisation des processus) ; • Axe 2 : Modularité et Interopérabilité du logiciel PEGOPERA ; • Axe 3 : Amélioration des fonctionnalités du logiciel PEGOPERA. Ce rapport reprend la description des tâches qui ont été réalisées l deuxième année [less ▲]

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See detailMultiscale study of the Carolingian mosaic of Germigny-des-Prés (Loiret, Fr
Van Wersch, Line ULg; Kronz, L.; Simon, K. et al

Conference (2016, July 08)

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See detailClostridium difficile a new zoonotic agent? Assessment of human transmission potential of hypervirulent strains of Clostridium difficile through food products consumption
Rodriguez Diaz, Cristina ULg

Doctoral thesis (2016)

Clostridium difficile is a spore-forming anaerobic bacterium recognised as a major human pathogen responsible for pseudomembranous colitis and nosocomial-antibiotic associated diarrhea. Traditionally ... [more ▼]

Clostridium difficile is a spore-forming anaerobic bacterium recognised as a major human pathogen responsible for pseudomembranous colitis and nosocomial-antibiotic associated diarrhea. Traditionally, hospitals were considered the main reservoirs for infection. However, in the last years the incidence, deaths, complications and costs of C. difficile infection (CDI) have been rising, not only in healthcare facilities, but also within the community. In the community, it has been detected in a growing number of CDI cases in previously healthy individuals without antimicrobial exposure, hospital stay or any other classical risk factors. Furthermore, the disease has been repeatedly described in younger patients, including children. Some hypotheses have been proposed to explain this peak of community cases, the most obvious being that nowadays more attention is given to CDI surveillance. In the last years, diarrhea due to C. difficile disease might have gone undiagnosed, and in many cases went unreported, particularly in the community. Since 2004, severe outbreaks of CDI have been documented increasingly in the United States, Canada and in Europe. These outbreaks have been associated with the emergence of a novel strain, known as PCR-ribotype 027, characterised by higher than usual levels of toxins A and B production, and the presence of a third toxin named CDT or binary toxin. This strain type is also characterised by its resistance to both erythromycin and fluoroquinolones (i.e. moxifloxacin, gatifloxacin and levofloxacin). However, according to the latest hospital surveillance studies in Europe, since 2010 there is a decrease in the incidence rates of PCR-ribotype 027 while other PCR-ribotypes, including PCR-ribotypes 014, 020, 001, 002, 078 and 015 are increasing. Person to person contact is one source proposed for the spread in the community, occurring after visiting hospitalised patients or residents in long-term care facilities. Employees of these health-care settings can also carry spores and contaminate their entourage. The second hypothesis is contamination from the environment, following visits to a potentially contaminated place, such as hospitals or nursing homes. The two most important potential sources of CDI in the community, which have been demonstrated by investigations in the last decade are animals and foods. While C. difficile is also known as enteric pathogen in some food producing and companion animal species, there are several reports describing the presence of the bacterium in the intestinal contents of apparently healthy animals. Moreover, data published recently suggests animals as an important source of human CDI, which can spread disease through environmental contamination, direct or indirect contact, or food contamination, including carcass and meat contamination at slaughter or in the case of crops, through the use of organic animal manure. By definition, zoonoses are infectious diseases that can be transmitted directly or indirectly between animals and humans, through direct contact or close proximity with infected animals, or through the environment. Foodborne zoonotic pathogens are transmitted via the consumption of contaminated food or drink water. The first description of C. difficile in domestic animals and their environments dates from 1974 and possible foodborne transmission was reported for the first time in 1982. However, nowadays the importance of C. difficile as zoonotic disease remains largely unknown. The "One Health" concept is a worldwide strategy, which recognises that the health of humans and animals is connected and also depends on the environment. The present dissertation is a 5 year national study that has investigated the presence of C. difficile in animals and food, from “farm-totable”. The study was also extended to humans resident in a nursing home and in two hospitals in Belgium and in Spain. The characterisation of the isolates obtained has ultimately allowed comparison of the PCR-ribotype distribution in the different European hospitals, as well as with the PCR-ribotype distribution found in animals and foods. This work explores how C. difficile spreads among human patients, animals, foods and the environment to better understand the potential of the bacterium as a zoonotic or foodborne infectious agent. [less ▲]

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See detailNonlinear analysis of compliant mechanisms: application to tape springs
Dewalque, Florence ULg; Bruls, Olivier ULg

Poster (2016, July 07)

Brief summary of the mechanical behaviour of tape springs. Main results obtained by the means of finite element models. Description of the experimental set-up and results. See the extended abstract for ... [more ▼]

Brief summary of the mechanical behaviour of tape springs. Main results obtained by the means of finite element models. Description of the experimental set-up and results. See the extended abstract for more details. [less ▲]

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See detailChapitre XIII. Droit du travail
Kéfer, Fabienne ULg

in Watté, Nadine; Lecocq, Pascale (Eds.) Droit de la Belgique (2016)

Présentation succincte du droit du travail Belge

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See detailLa biodiversité entomologique comme source d’aliments à Kinshasa (République démocratique du Congo)
Nsevolo, Papy; Alabi, Taofic ULg; Caparros Megido, Rudy ULg et al

in Annales de la Société Entomologique de France (2016)

L’exploitation des produits forestiers non ligneux dont notamment les insectes comestibles jouent un rôle important dans les habitudes alimentaires et économies locales des populations autochtones du ... [more ▼]

L’exploitation des produits forestiers non ligneux dont notamment les insectes comestibles jouent un rôle important dans les habitudes alimentaires et économies locales des populations autochtones du bassin du Congo. Bien que la consommation d’insectes en République Démocratique du Congo soit une pratique ancienne, l’inventaire et l’identification taxonomique des espèces consommées ainsi que la caractérisation de la filière « entomophagie » sont encore mal maitrisés. Toutefois, nos études axées sur la ville de Kinshasa ont permis d’inventorier 14 espèces comestibles régulièrement consommées. Elles appartiennent à l’ordre des Lépidoptères (46,7%), des Isoptères (18,6%), des Orthoptères (17,6%), des Coléoptères (9,7%) et des Hyménoptères (3,7%). De façon générale, 80% de la population de Kinshasa consomment au minimum une espèce d’insecte 5 jours par mois avec des quantités variant de 66,4 à 154 g d’insectes par personne par jour en fonction des différents ordres. Les acteurs de la filière sont majoritairement des femmes. Les revenus générés par l’activité concourent au bien-être des ménages, à la réduction de la pauvreté et de l’insécurité alimentaire dans de la capitale Kinshasa. [less ▲]

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See detailSingle Molecule force spectroscopy on helical foldamers
Devaux, Floriane ULg; Li, Xuesong; Huc, Ivan et al

Scientific conference (2016, July 07)

Detailed reference viewed: 1 (1 ULg)
See detailDiversity and evolution of transposable elements in the Arabidopsis lyrata and A. halleri genomes
Caron, Thibault; Legrand, Sylvain; Schvartzman Echenique, Maria Sol ULg et al

Conference (2016, July 07)

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See detailNovel butanol pretreatment significantly improves delignification and saccharification of different lignocellulosic biomasses
Schmetz, Quentin ULg; Teramura, Hiroshi; Jacquet, Nicolas ULg et al

Poster (2016, July 07)

Organosolv pretreatment using diluted acid and butanol allows the separation of cellulose, hemicelluloses and lignin into three distinct phases. The butanol process has been investigated on six different ... [more ▼]

Organosolv pretreatment using diluted acid and butanol allows the separation of cellulose, hemicelluloses and lignin into three distinct phases. The butanol process has been investigated on six different biomasses: tall fescue, sugarbeet pulp, sugarcane bagasse, beech wood, eucalyptus and Japanese cedar. Dilute acid pretreatment has been performed under similar conditions for comparison. [less ▲]

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