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See detailThe inevitable downfall of the Belgian electrical power industry?
Ernst, Damien ULg

Speech/Talk (2015)

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See detailLaTeX, un peu, beaucoup (7. Tableaux (encore))
Dupont, Pascal ULg

in Losanges (2015), 28

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See detailREPORT OF THE EGOLF ROUND-ROBIN NR. TC2 14-1 IN FIRE RESISTANCE TESTING
Dumont, Fabien ULg; Boström, Lars; Łukomski, Marek et al

Report (2015)

This document reports the statistical analysis conducted on the raw data issued from the TC2 14-1 round-robin performed by 16 fire testing laboratories members of EGOLF. The test specimen is a HEB300 hot ... [more ▼]

This document reports the statistical analysis conducted on the raw data issued from the TC2 14-1 round-robin performed by 16 fire testing laboratories members of EGOLF. The test specimen is a HEB300 hot rolled steel beam tested according to EN 1365-3. [less ▲]

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See detailMeasuring nonlinear distortions: from test case to an F-16 fighter
Vaes, Mark; Schoukens, Johan; Rolain, Yves et al

Conference (2015, March)

What are the similarities and differences between the behavior of a small vibrating test system and an F-16 fighter? To find it out, we compare measurements of the test system to measurements from the ... [more ▼]

What are the similarities and differences between the behavior of a small vibrating test system and an F-16 fighter? To find it out, we compare measurements of the test system to measurements from the bolted connection of the wing and the missile of a F-16 Fighter Falcon from the Belgian air force. These measurements were done during a ground vibration test (GVT) campaign. Essentially, the behavior of these systems match, even though the test system is only the heart of a self-study kit for nonlinear system identification and the F-16 is a complex real life mechanical structure. This clearly shows the added value of an experiment driven nonlinear educational system identification package. It provides safe small-scale toy examples for hands-on exercises that react like real systems. We believe that this practical approach lowers the gap between learning system identification concepts and applying it on real systems. [less ▲]

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See detailÉvaluation et analyse de la performance par accélérométrie lors des mouvements de musculation
Jidovtseff, Boris ULg; Laffaye, Guillaume

in Arfaoui, Ahlem; Bertucci, William (Eds.) Métrologie et biomécanique (2015)

Since a decade, the accelerometry allows new measurements in biomechanics of sport. Small, light and transportable, these sensors allow to liberate from heavy force plates and offers new perspectives in ... [more ▼]

Since a decade, the accelerometry allows new measurements in biomechanics of sport. Small, light and transportable, these sensors allow to liberate from heavy force plates and offers new perspectives in the understanding of the performance in sport. The goal of this chapter is to present the concept of the accelerometry and to understand practical possibilities and limits in the assessment of muscular performance. The reliability of the accelerometers are highly depending on the level of technology and in the respect of manufacturer recommendations. These devices are used during exercises such as bench press or squat, allowing to analyze force-velocity-power profile, to estimate the 1-RM, to achieve biomechanical analysis or to track free weight exercises during work out. All of these applications are very precious for scientists and for coaches during training program or athletes follow-up. [less ▲]

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See detailEtude GEROX : Evaluation du statut de stress oxydant
CHRISTELBACH, SOPHIE; RICOUR, Céline ULg; Dardenne, Nadia ULg et al

Poster (2015, March)

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See detailL'insécurité en question. Définitions, enjeux et perspectives
Wintgens, Sophie ULg; Grandjean, Geoffrey ULg; Vanhaeren, Stéphanie ULg

Book published by Presses Universitaires de Liège (2015)

Ces dernières années, l’analyse et les pratiques de la sécurité et de l’insécurité ont fortement évolué sous l’influence de plusieurs facteurs fortement imbriqués, tels que le déclin de la souveraineté ... [more ▼]

Ces dernières années, l’analyse et les pratiques de la sécurité et de l’insécurité ont fortement évolué sous l’influence de plusieurs facteurs fortement imbriqués, tels que le déclin de la souveraineté nationale, l’accroissement de l’intensité des interactions transnationales ou encore l’éclatement conflictuel sous-tendu par des dynamiques identitaires. Ces constats et les représentations qui leur sont associées ont enjoint un réexamen de la manière dont la sécurité et l’insécurité se pensent et se pratiquent. Inscrit au cœur de ce double questionnement contemporain, cet ouvrage met en question la définition et les enjeux liés aux dynamiques actuelles d’(in)sécurité tout en proposant de nouvelles perspectives. Privilégiant les études empiriques et les approches originales en termes de politique interne et/ou externe, il repose sur trois axes de recherche transversaux : la (re)définition des concepts de sécurité et d’insécurité à l’heure de la globalisation ; les enjeux inhérents aux pratiques (in)sécuritaires et aux sentiments d’(in)sécurité qui les fondent ; les réponses à apporter aux questions de sécurité et d’insécurité. Complémentaire aux analyses disciplinaires classiques de ces objets de recherche en Science politique, cet ouvrage livre un regard neuf sur des thématiques plus que jamais d’actualité. [less ▲]

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See detailGestion implantaire de l'édentement unitaire dans le secteur esthétique : une approche visant à optimiser les tissus. Partie I : aspect chirurgical
LAMBERT, France ULg

in Réalites Cliniques : Revue Européenne d'Odontologie (2015), 26(n°1),

Nous sommes tous bien conscients de la problématique liée au remodelage osseux après extraction dentaire, en particulier dans la zone esthétique. Les conséquences cliniques sont telles que le recours à ... [more ▼]

Nous sommes tous bien conscients de la problématique liée au remodelage osseux après extraction dentaire, en particulier dans la zone esthétique. Les conséquences cliniques sont telles que le recours à des techniques de régénération tissulaire est souvent nécéssaire pour la pose de l'implant et pour assurer des résultats esthétiques. Cet article vise à démontrer l'efficacité d'un protocole d'optimisation tissulaire basé sur la préservation du capital osseux et sur l'optimisation des tissus gingivaux lors d'une extraction dentaire dans la zone esthétique. L'objectif de cet article est de suggérer un processus décisionnel en matière de technique chirurgicale, reposant d'une part sur l'examen clinique initial et, d'autre part, sur une excellente compréhension du concept biologique. [less ▲]

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See detailMagnetosphere-ionosphere mapping at Jupiter: Quantifying the effects of using different internal field models
Vogt, Marissa; Bunce, Emma; Kivelson, Margaret et al

in Journal of Geophysical Research. Space Physics (2015), 120

The lack of global field models accurate beyond the inner magnetosphere (<30 RJ) makes it difficult to relate Jupiter's polar auroral features to magnetospheric source regions. We recently developed a ... [more ▼]

The lack of global field models accurate beyond the inner magnetosphere (<30 RJ) makes it difficult to relate Jupiter's polar auroral features to magnetospheric source regions. We recently developed a model that maps Jupiter's equatorial magnetosphere to the ionosphere using a flux equivalence calculation that requires equal flux at the equatorial and ionospheric ends of flux tubes. This approach is more accurate than tracing field lines in a global field model but only if it is based on an accurate model of Jupiter's internal field. At present there are three widely used internal field models—Voyager Io Pioneer 4 (VIP4), the Grodent Anomaly Model (GAM), and VIP Anomaly Longitude (VIPAL). The purpose of this study is to quantify how the choice of an internal field model affects the mapping of various auroral features using the flux equivalence calculation. We find that different internal field models can shift the ionospheric mapping of points in the equatorial plane by several degrees and shift the magnetospheric mapping to the equator by ~30 RJ radially and by less than 1 h in local time. These shifts are consistent with differences in how well each model maps the Ganymede footprint, underscoring the need for more accurate Jovian internal field models. We discuss differences in the mapping of specific auroral features and the size and location of the open/closed field line boundary. Understanding these differences is important for the continued analysis of Hubble Space Telescope images and in planning for Juno's arrival at Jupiter in 2016. [less ▲]

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See detailGian Matteo Giberti et les lettres à travers la correspondance de jeunesse
Valenti, Gianluca ULg

Conference (2015, February 27)

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See detailWho’s the gatekeeper? Ensuring and Legitimating a Participatory Decision-Making Process in the context of Nuclear Waste Management
Parotte, Céline ULg

Conference (2015, February 27)

In Belgium, Nuclear Waste Management (NWM) is conducted by a Federal Agency called ONDRAF - i.e. the “National Agency for Radioactive Waste and Enriched Fissile Materials”. Adhering to a largely accepted ... [more ▼]

In Belgium, Nuclear Waste Management (NWM) is conducted by a Federal Agency called ONDRAF - i.e. the “National Agency for Radioactive Waste and Enriched Fissile Materials”. Adhering to a largely accepted vision, NWM is considered by ONDRAF as a long-term and complex issue, consisting in technical, social, economic and ethical questions. In this respect, scientific literature invites to clarify and address those aspects in a decision-making process that could benefit from meaningful public participation (Callon, Lascoumes, and Barthes 2001). In this context, many stakeholders (e.g. citizens, researchers, industrialists, civil society organizations, the European Union... and ONDRAF itself) are in demand of a “conductor” that can organize, ensure and legitimize such a participatory decision-making process. Many questions emerge from this demand. Who can be the gatekeeper of this process? What could be his role? For which purposes? In addition to that, how should participation be organized/assessed/controlled? To that regard, the purpose of this paper is twofold. First, I elaborate a possible definition of “gatekeeping a participatory decision-making process concerning NWM in Belgium”. Second, I question the possible role of Technology Assessment (TA) - as an institution as well as a set of approached - in this context. To address those questions, I rely on a combination of theoretical and empirical materials – i.e. semi directive interviews with policy makers and members of Belgian and French agencies in charge of NWM. [less ▲]

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See detail"Mimer le savoir pour mieux le miner : le guide pratique selon Pierre La Police"
Belloi, Livio ULg

Conference (2015, February 27)

En s'appuyant sur "Nos meilleurs amis et l'acte interdit" (Cornelius, 2011, 4e édition), la présente communication examine le traitement parodique que le dessinateur français Pierre La Police réserve au ... [more ▼]

En s'appuyant sur "Nos meilleurs amis et l'acte interdit" (Cornelius, 2011, 4e édition), la présente communication examine le traitement parodique que le dessinateur français Pierre La Police réserve au discours à caractère encyclopédique ou didactique. Dans son rapport distancié et facétieux au savoir, Pierre La Police creuse le sillon ouvert par Gustave Flaubert et son fameux "Dictionnaire des idées reçues". [less ▲]

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See detailTensor Representation of Spin States
Giraud, Olivier; Braun, Daniel; Baguette, Dorian ULg et al

in Physical Review Letters (2015), 114

We propose a generalization of the Bloch sphere representation for arbitrary spin states. It provides a compact and elegant representation of spin density matrices in terms of tensors that share the most ... [more ▼]

We propose a generalization of the Bloch sphere representation for arbitrary spin states. It provides a compact and elegant representation of spin density matrices in terms of tensors that share the most important properties of Bloch vectors. Our representation, based on covariant matrices introduced by Weinberg in the context of quantum field theory, allows for a simple parametrization of coherent spin states, and a straightforward transformation of density matrices under local unitary and partial tracing operations. It enables us to provide a criterion for anticoherence, relevant in a broader context such as quantum polarization of light. [less ▲]

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See detail3D human motion analysis based on ultra-low resolution sensors
Pierard, Sébastien ULg

Scientific conference (2015, February 27)

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See detailComparison of early stages of colorectal cancer by label free proteomics
QUESADA CALVO, Florence ULg; MEUWIS, Marie-Alice ULg; Bertrand, Virginie ULg et al

in Acta Gastroenterologica (2015, February 27)

Introduction and objectives: Colorectal cancer (CRC) is the second most frequent cancer in women and the third in men. Identification of the mechanisms of progression in these early CRC stages is ... [more ▼]

Introduction and objectives: Colorectal cancer (CRC) is the second most frequent cancer in women and the third in men. Identification of the mechanisms of progression in these early CRC stages is important to develop new diagnostic and therapeutic tools. Formalin-Fixed Paraffin-Embedded (FFPE) specimens are materials that enable proteomic clinical research. Hence our aim was to address the comparison of FFPE samples from early CRC stages patients using shotgun proteomic analysis. Methods: We performed a retrospective study on 36 CRC tissue samples (pT1N0M0, n=16 and pT2N0M0, n=20) compared together and with 40 control tissue samples (20 patients with diverticulitis, using paired inflamed (DI) and healthy tissue (DH)). Each tissue slice was macrodissected to enrich in epithelial cells. We used FFPE-FASP kit (Expedeon) for sample preparation and protein digests were analyzed using 2D-nanoAquity UPLC separation online with Q-Tof Synapt HDMSTM G2 using ion mobility as additional separation. We performed protein identification and differential analysis using Progenesis QI for proteomics (Nonlinear Dynamics). Results and discussion: We selected 149 proteins differentially distributed between T1 and T2 CRC stages which were not significantly different between CRC and DH or DI. Only 30 proteins were significantly more abundant in T1 versus T2 and 119 were distributed inversely, with a minimum fold ratio of 2. Among those, ATP synthase subunit beta, Aspartate-tRNA ligase, Haptoglobin and Kininogen were identified. . Moreover, we validated Kininogen and 3 others proteins with a significant differential distribution between pT1N0M0 and pT2N0M0 stages by immunohistochemistry. Conclusion: This FFPE retrospective study comparing T1 and T2 CRC highlighted proteins already previously identified as potential CRC biomarkers. These proteins may reflect important early changes in cancer development and may help understanding early tumor progression. [less ▲]

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See detailPACITA "User" Summer Schools in Liège 2012 and Cork 2014
Rosskamp, Benedikt ULg; Fitzgerald, Ciara

Conference (2015, February 27)

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See detailPier Francesco Riccio e Pietro Aretino alla corte di Cosimo I de' Medici
Geremicca, Antonio ULg

Scientific conference (2015, February 26)

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See detailPratiques de détournement du jeu vidéo
Barnabé, Fanny ULg

Scientific conference (2015, February 26)

Séance de cours sur les différentes pratiques de détournement du jeu vidéo par les joueurs (fanfictions, machinimas, speedrun, modding,...).

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