References of "2012"
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See detailPrediction of the cross-section capacity of hot-rolled profiles using the direct strength method and the continuous strength method
Li, Yongzhen ULg; Rossi, Barbara ULg

in Chan, S.L.; Shu, G.P. (Eds.) Proceedings of seventh International Conference on Advances in Steel Structures (2012, April)

Material yielding on one hand and local buckling on the other hand limit the cross-section capacity of steel structural members. Current structural design codes use the concept of cross-section ... [more ▼]

Material yielding on one hand and local buckling on the other hand limit the cross-section capacity of steel structural members. Current structural design codes use the concept of cross-section classification to determine the cross-section resistance of hot-rolled profiles. In this system, the Effective Width Method (EWM) is employed to account for local buckling effects for slender, class 4, cross-sections. Alternative design methods for treatment of local buckling in metallic cross-sections have been proposed, including the Direct Strength Method (DSM), developed for cold-formed steel structural profiles, and, recently, the Continuous Strength Method (CSM). The DSM is based on the assumption that the strength can be predicted from the ratio of the yield strength to the elastic critical load in conjunction with a strength curve for the entire cross-section. Thus it is essentially an extension of the use of column curves for global buckling, but with application to local buckling instability. The CSM is a deformation-based design approach which is based on a continuous relationship between cross-sectional slenderness and cross-section deformation capacity and a rational exploitation of strain hardening. This paper is focused on the evaluation of the cross-sectional resistance of hot-rolled structural profiles. Test data from literature experimental programmes have been gathered and analysed to compare the predictions from the DSM and CSM design approaches. [less ▲]

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See detailBriefe an Casanova
Roggendorf, Cécile de; Viehöver, Vera ULg

E-print/Working paper (2012)

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See detailVulgariser et distinguer. Stratégies médiatiques autour du discours théorique
Provenzano, François ULg

in Discours et la Langue (Le) (2012), 2(2), 199-209

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See detailDroits de succession et de mutation par décès
Bourgeois, Marc ULg; Douny, Raphaël ULg; Gustin, Manuel ULg et al

in Chroniques notariales (2012)

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See detailEnsembles reconnaissables de rationnels
Charlier, Emilie ULg

Scientific conference (2012, April)

In this talk I will introduce the recognizable sets of rationals, following the formalism of Jeffrey Shallit. I will point out several open questions regarding this topic.

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See detailPlatelet-rich plasma to treat jumper’s knee: preliminary results
Kaux, Jean-François ULg; CROISIER, Jean-Louis ULg; SIMONI, Paolo ULg et al

in Biomedica 2012 (2012, April)

Introduction: Tendinopathies, especially jumper’s knee, often remain rebel to conservative treatments. Several experimental studies have shown the healing properties of platelet and their growth factors ... [more ▼]

Introduction: Tendinopathies, especially jumper’s knee, often remain rebel to conservative treatments. Several experimental studies have shown the healing properties of platelet and their growth factors. Researches have specifically demonstrated the platelets action as mediator and/or enhancer of tissue healing. The aim of our study was to investigate the effect of 1 injection of PRP in patients suffering from chronic jumper’s knee. Our protocol was approved by Ethic Committee of University and University Hospital of Liège. Methods: Patients performed imaging (US and MRI) and functional assessments, and a clinical examination using an algometer, before treatment and 6 weeks after PRP treatment. They were also invited to answer to questionnaire relative to pain and functional status. PRP was obtained from autologous blood using an apheresis system (COM.TEC, Fresenius). The injection of 6mL of PRP was realised without local anaesthesia into the proximal insertion of the patellar tendon. A 48h rest-time was recommended after infiltration. Afterwards, a submaximal eccentric reeducation was initiated 1 week after infiltration 3 times a week during 5 weeks. In case of pain, anti-inflammatory drugs were prohibited and patient were encouraged to take class I or II painbrakers. Results: At this time, 10 patients with jumper’s knee were included in our study. Pre-injection tests revealed pain of the upper part of the patellar tendon just below the patella, associated with loss of function. Imaging exams confirmed diagnosis. Six weeks post-injection, the clinical status was improved in all patients, with a significant decrease of algo-functional scores. The pain reported during functional assessments was decreased (in particular for the eccentric actions), yet no significant improvement of physical performances was observed. We found no significant differences between imaging exams before and 6 weeks after PRP injection. Conclusion: One in situ injection of PRP clinically improved patients with jumper’s knee 6 weeks after treatment. All the 10 patients reported a decrease of pain during day-life and through physical activities. However nor functional performances neither imaging were improved. [less ▲]

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See detailChargement de marchandises dans un avion cargo: le cas des marchandises nécessitant des précautions particulières
Schyns, Michael ULg; Limbourg, Sabine ULg; Kleyntssens, Thomas ULg

Conference (2012, April)

D'une part, les entreprises de transport aérien ont acheminé en 2010 plus d’un tiers de la valeur des exportations mondiales. D'autre part, le chargement des avions est une opération complexe soumise à de ... [more ▼]

D'une part, les entreprises de transport aérien ont acheminé en 2010 plus d’un tiers de la valeur des exportations mondiales. D'autre part, le chargement des avions est une opération complexe soumise à de nombreuses contraintes et peu d'outils sont disponibles pour aider les loadmasters à trouver la meilleure disposition des conteneurs dans les avions. Limbourg, Schyns et Laporte (2011) ont proposé un modèle à variables entières pour traiter les problèmes élémentaires. Notre travail est une extension de ces travaux. Nous considérons des chargements spéciaux qui impliquent des précautions particulières (produits dangereux, animaux, produits réfrigérés, aliments périssables, ...) ainsi que le transport de marchandises de plus grande taille. L’ajout de ces deux types de contraintes se justifie par la grande fréquence de ces situations dans des problèmes réels rencontrés par nos partenaires industriels. Le problème résultant est très complexe et nous proposons un outil pour le résoudre. [less ▲]

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See detailEcouter le bruit, faire entendre la gêne
Colon, Paul-Louis ULg

in Communications (2012), (90), 95-107

Noise issues and ordinary listening have long been adressed separately in the social sciences. This paper argues in favor of the usefulness of an integrated approach to both, from the standpoint of an ... [more ▼]

Noise issues and ordinary listening have long been adressed separately in the social sciences. This paper argues in favor of the usefulness of an integrated approach to both, from the standpoint of an ethnographic investigation on the perception and management of sonic environment which was carried out in French-speaking Belgium. This heuristic approach – combining listening and noise – makes it possible to describe the process of when the feeling of annoyance comes about and the ability for annoyed people to express it. [less ▲]

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See detailRevealing MPLS Tunnels Obscured from Traceroute
Donnet, Benoît ULg; Luckie, Matthew; Mérindol, Pascal et al

in Computer Communication Review (2012), 42(2), 87-93

Operators have deployed Multiprotocol Label Switching (MPLS) in the Internet for over a decade. However, its impact on Internet topology measurements is not well known, and it is possible for some MPLS ... [more ▼]

Operators have deployed Multiprotocol Label Switching (MPLS) in the Internet for over a decade. However, its impact on Internet topology measurements is not well known, and it is possible for some MPLS configurations to lead to false router-level links in maps derived from traceroute data. In this paper, we introduce a measurement-based classification of MPLS tunnels, identifying tunnels where IP hops are revealed but not explicitly tagged as label switching routers, as well as tunnels that obscure the underlying path. Using a large-scale dataset we collected, we show that paths frequently cross MPLS tunnels in today's Internet: in our data, at least 30% of the paths we tested traverse an MPLS tunnel. We also propose and evaluate several methods to reveal MPLS tunnels that are not explicitly flagged as such: we discover that their fraction is significant (up to half the explicit tunnel quantity) but most of them do not obscure IP-level topology discovery. [less ▲]

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See detailRay-tracing modelling of the diffraction by half-planes and slits based on the energy flow lines concept
Billon, Alexis ULg; Embrechts, Jean-Jacques ULg

in Proceedings of the Acoustics 2012 Nantes conference (2012, April)

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See detailPrésentation des résultats de la recherche SAFE
Reiter, Sigrid ULg; Marique, Anne-Françoise ULg; de Meester, Tatiana

Conference given outside the academic context (2012)

Présentation des résultats de la recherche SAFE et d'un outil interactif permettant à différentes catégories d'utilisateurs d'estimer les consommations d'énergie relatives à leur logement et à leur ... [more ▼]

Présentation des résultats de la recherche SAFE et d'un outil interactif permettant à différentes catégories d'utilisateurs d'estimer les consommations d'énergie relatives à leur logement et à leur déplacements, à les comparer et à trouver des pistes concrètes d'amélioration. [less ▲]

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See detailETAPE - Rapport d’évaluation des résultats
Vanmeerbeek, Marc ULg; Bednarek, Stéphanie; Lachaussée, Sophie et al

Report (2012)

Contexte et objectifs ETAPE est un programme d’intervention précoce à domicile au bénéfice de familles à risque de négligence parentale. Le programme prend en charge des enfants de 0 à 30 mois, ainsi que ... [more ▼]

Contexte et objectifs ETAPE est un programme d’intervention précoce à domicile au bénéfice de familles à risque de négligence parentale. Le programme prend en charge des enfants de 0 à 30 mois, ainsi que leurs parents, au rythme d’une à deux visites à domicile par semaine. L’intervention consiste en des massages du bébé, des jeux psychomoteurs. Un temps important est en outre consacré à l’accompagnement et à la guidance du rôle parental. L’originalité du projet est qu’il est centré sur le développement psychomoteur et affectif du bébé en lien avec son ou ses parents. L’étude cherche à mesurer l’efficacité du programme en termes de développement psychomoteur de l’enfant, de qualité d’attachement au sein de la dyade parent-enfant et de compétences éducatives des parents. Méthodologie Les aptitudes psychomotrices de l’enfant ont été mesurées au moyen du test de Brunet et Lézine modifié, au début, en milieu et en fin d’intervention. Le caractère sécure ou non de l’attachement a été mesuré chez le caregiver par Q-Sort en début et en fin d’intervention. Les compétences parentales ont été évaluées tous les six mois durant l’intervention au moyen d’un questionnaire développé par l’équipe de recherche en 2008 (MASPIN) et complété par les intervenants sur base de leurs observations. Résultats Douze enfants ont été étudiés. Les trois quarts ont été pris en charge avant 1 an ; la durée moyenne d’intervention est de 11,3 mois. En moyenne, les enfants gagnent nettement en score de développement moteur global, gagnent un peu en socialisation, sont stables en développement moteur fin. La plupart régressent au score de langage, ce qui influence négativement le score global de développement. Deux enfants sur douze sont sécures au début et à la fin de l’intervention (mais ce ne sont pas les mêmes). Aucun ne termine l’intervention significativement insécurisé, mais la relation dans la dyade n’est en général pas optimale. Les résultats de MASPIN permettent d’étoffer les autres résultats obtenus et de mieux comprendre l’évolution au cas par cas. Discussion Les résultats, mesurés par les tests de Brunet-Lézine et le Q-Sort semblent modestes dans certains domaines, mais doivent être analysés à la lumière des conditions d’intervention. MASPIN a donné une vue beaucoup plus précise de la réalité et de son évolution. Ce questionnaire a aussi permis de monitorer l’intervention. Toutefois, la finesse des observations et l’aspect subjectif de la cotation empêchent une analyse globale des résultats ; la fidélité intercotateur doit encore être validée. MASPIN permet en outre de donner des repères pour le dialogue avec d’autres professionnels impliqués dans le suivi des situations, et fournit un canevas qui facilite la discussion avec les familles sur l’exercice de la parentalité et les objectifs d’intervention. L’analyse des résultats permet de prendre conscience que certaines compétences (par ex., le langage) méritent d’être mieux soutenues et stimulées par les intervenants de terrain.) Des collaborations extérieures devront être développées (par ex : psychologue, aide sociale). L’investissement requis de la part des intervenants est important. Le risque de découragement est grand ; ils doivent être soutenus et supervisés de façon efficace dans ce travail. L’instauration d’un vrai esprit d’équipe est indispensable Conclusion Le rendement de ce programme, destiné à un public particulièrement difficile, est intéressant mais variable selon les situations prises en charge, que ce soit en termes de développement psychomoteur ou d’attachement à la figure parentale. L’outil MASPIN se révèle précieux dans de multiples aspects de la prise en charge, depuis le dialogue avec les professionnels qui identifient la situation, jusqu’au monitorage des objectifs au fil de l’intervention, en passant par la construction des objectifs d’intervention avec les parents. [less ▲]

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See detailL'obésité de l'enfant: Rencontre et parole donnée
Battisti, Oreste ULg

Learning material (2012)

vidéo comprenant les interviews de certaines familles confrontés à l'obésité.

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See detailHumanisme pratique et antihumanisme théorique
Delruelle, Edouard ULg

Article for general public (2012)

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See detailCLUPI, a high-performance imaging system on the ESA-NASA rover of the 2018 ExoMars mission to discover biofabrics on Mars
Josset, Jean-Luc; Westall, Frances; Hofmann, B.A. et al

Conference (2012, April)

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See detailModelling the risk of ecosystem disruption in Europe with a dynamic vegetation model
Dury, Marie ULg; Hambuckers, Alain ULg; Warnant, Pierre et al

Conference (2012, April)

What will be the European ecosystem responses to future climate? With unprecedented speed and extent, the projected climate change might lead to a disruption of terrestrial plants functioning in many ... [more ▼]

What will be the European ecosystem responses to future climate? With unprecedented speed and extent, the projected climate change might lead to a disruption of terrestrial plants functioning in many regions. In the framework of the EcoChange project, transient projections over the 1901-2100 period have been performed with a process-based dynamic vegetation model, CARAIB DVM (Dury et al., 2011, iForest 4: 82, 99). The vegetation model was driven by the outputs of four climate models under the SRES A1B scenario: the ARPEGE/Climate model and three regional climate models (KNMI-RACMO2 , DMI-HIRHAM5 and HC-HadRM3Q0 RCMs) from the European Union project ENSEMBLES. DVMs are appropriate tools to apprehend potential climate change impacts on ecosystems and identify threatened regions over Europe. CARAIB outputs (soil moisture, runoff, net primary productivity, fire, etc.) were used to characterize the ecosystem evolution. To assess consequences on biodiversity, the evolution of 100 natural common European species (47 herbs, 12 shrubs and 41 trees) has been studied year-to-year over the 1901-2100 period. Under the combined effects of projected changes particularly in temperature and precipitations, CARAIB simulates important reductions in the annual soil water content. The species productivities vary strongly from year to year reaching during the driest years values much lower than present-day average productivity. According to CARAIB, a lot of species might go beyond their water tolerance very frequently, particularly after 2050, due to more intense summer droughts. In the northern part of Europe and in the Alps, with reduced temperature variability and positive soil water anomalies, NPP variability tends to decrease. Regions with more severe droughts might also be affected by an increase of the frequency and intensity of wildfires. With this background, the species distributions might be strongly modified. 15% of tree species and 30% of herb and shrub species (respectively 30% and 60% if the CO2 fertilization effect on species is not taken into account) might experience a loss of 30% or more of their current distribution. Proportions of new species appearance at the end of the century were also studied. Southern Europe might suffer important species extinction while the more suitable climate conditions in northern Europe might lead to a gain in species diversity. [less ▲]

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See detailEvaluation of three immunoassays for serodiagnosis of human Mycoplasma pneumoniae infection
HUYNEN, Pascale ULg; TOUSSAINT, Françoise ULg; HAYETTE, Marie-Pierre ULg et al

Poster (2012, April)

The aim of this study was to evaluate three commercial automated immunoassays for the serological diagnosis of M. pneumoniae infection.

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See detailLe sort d’une offre faite par un curateur à succession vacante
Rozenberg, Fanny ULg

in Revue de la Faculté de Droit de l'Université de Liège (2012), 4

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See detailGouvernance des territoires de pêche et politique des aires marines protégées au Sénégal : les pêcheurs migrants de Saint- Louis face à la dynamique des mobilisations locales à Cayar
Seck, Aichetou ULg

in Territoires d'Afrique (2012), 3

Since a few decades, the Senegalese small-scale fishing knows important upheavals which mortgage its dynamism. The increase of fishermen's staff, the evolution of the techniques of fishing, the ... [more ▼]

Since a few decades, the Senegalese small-scale fishing knows important upheavals which mortgage its dynamism. The increase of fishermen's staff, the evolution of the techniques of fishing, the degradation of marine ecosystems are so many blocking factors that the fishing management policies have to consider to check on the decline of the halieutic resources and guarantee the durability of the activities for coastal populations in Senegal. In 2004, the Government proceeded to create five marine protected areas (MPA) throughout the littoral to bring an answer to the problem of management of fisheries. The MPA appear as a tool of preservation and development and fit into territories of fishing strongly suited by communities in presence. Among these, the community of the migrant fishermen the Guet- ndariens, of the north Senegalese quotation, sees their spaces being transformed in front of this new policy of the Government. But also in front of strategies of control which try to set up the autochthonous populations to counter in their strong activity of fishing. So, we attend a competition pushed on the resource on the background of latent conflicts. But also a transformation of the strategies of the various actors in their perceptions of the space of the identical, historic and functional point of view [less ▲]

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