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See detailAléa climatique et débits des cours d’eau dans le bassin transnational de la Meuse : Co-variabilité, changements possibles et impact sur les débordements
Grelier, Benjamin ULiege

Doctoral thesis (2017)

Climate change is a global socio-environmental concern which required adaptation from human societies in order to compensate negative effects and to take benefit from positive effects. Our research is ... [more ▼]

Climate change is a global socio-environmental concern which required adaptation from human societies in order to compensate negative effects and to take benefit from positive effects. Our research is studying water cycle at the catchment scale and contribute to the adaptation of the transnational Meuse basin to the effects of climate change on hydrological extremes (floods and low flows). To this aim, we adopted a hazard-centered approach. A top-down modelling chain has been set up on two contrasted sub-basins of the Meuse river: the Meuse river at Saint-Mihiel (2543 km², France) and the Ourthe river at Tabreux (1607 km², Belgium). The climate forcing of the chain is constructed on a temporal continuum ranging from the Maunder Minimum (≈ 1650 A.D.) to the end of the 21st century. For the future, climate data are provided by an ensemble of GCMs run in the framework of the Coupled Model Intercomparison Project Phase 5 (CMIP5) and forced with RCP radiative scenarios. For the historical period, gridded data available in the study area are used. Blending past and future climate data is obtained through a transfer function, linking the pressure gradient force to climate forcing variables of catchment streamflow (i.e. atmospheric water and energy supplies). Aggregation of climate data provides a first estimation of potential climatic variability for the two studied sub-basins. The hydrological effect of this potential climatic variability is evaluated in two ways: i) through a regression climate-streamflow transfer function which predicts the streamflow at the outlet of a catchment with the information provided by the pressure gradient force. Regression models are fitted in present climate conditions and used further to extrapolate the streamflow at the outlet of a catchment with CMIP5 GCMs data; ii) through the link between the pressure gradient force and climate forcing variables of streamflow. Regression models are efficient enough to provide robust estimation of the potential climate variability at the scale of interest. The delta-change approach is then applied to potential climate variability to get representative climate scenarios at a daily time step relevant for rainfall-runoff modelling. The tested rainfall-runoff model (GR4J) is calibrated through a climatically robust method. This step gives a first estimation of the two sub-basins sensibility to prescribed climate changes. In order to evaluate the effect of climate change on hydraulic behavior of a river, the modelling chain has been completed with the WOLF1D hydraulic model. Is has been parameterized and validated for a section of the Ourthe river. Boundary conditions were forced with representative climate scenarios to evaluate the climate change effect on overflowing. In a first step, the latter is characterized through overflowing sequences determined through simulated water levels. Then, to overcome the limits of the WOLF1D model in flood-prone area, the flow-duration-frequency behavior of the first overflowing streamflow is studied to show the overflowing evolution under climate change. In the end, our work provides an original framework for studying climate change effect on hydrological extremes through a sampling of climate changes with past and future climate series. The use of a hazard-centered modelling chain is a first step toward adaptation strategies suited for contrasted climate conditions. This contributes in turn to make catchment more resilient. [less ▲]

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See detailLes communs fonciers à l’ère d’internet au Cambodge, une approche par les conflits
Mellac, Marie; Diepart, Jean-Christophe ULiege

in Netcom (2017), 31(1/2), 129-152

Résumé - Depuis les années 2000, la vie politique cambodgienne est marquée par des conflits majeurs provoqués par la destruction de communs fonciers, ruraux et urbains. Ces conflits jaillissent dans un ... [more ▼]

Résumé - Depuis les années 2000, la vie politique cambodgienne est marquée par des conflits majeurs provoqués par la destruction de communs fonciers, ruraux et urbains. Ces conflits jaillissent dans un contexte où la violence et les relations clientélistes propres à l’exercice du pouvoir d’Etat cambodgien limitent la formation de contre-pouvoirs. Des espaces de résistance existent néanmoins et les possibilités d’internet les transforment ou les amplifient. A travers les conflits fonciers, cet article examine les mobilisations du web et montre qu’elles apportent une dimension informationnelle aux dynamiques sociales de protection des communs fonciers. La mise à disposition de données et informations foncières sur internet par des acteurs de la société civile bouscule le rôle central de l’Etat en la matière. Toutefois, le lien entre les interventions du numérique et la gouvernance foncière ne va pas de soi et reste une piste à explorer. Abstract - Since the years 2000, political life in Cambodia has been deeply marked by land conflicts, brought about by the destruction of rural and urban commons. These conflicts occur in a context where violence and patronage, which are at the core of Cambodian State formation practises, limit approaches to counter power. However, spaces of resistance exist and are actively transformed by the internet. Through the prism of land conflicts, this article examines how different mobilizations of the Web bring an informational dimension to the social dynamics of protecting land-based commons. The release of land-related data and information on the internet by civil society actors shakes up the central role of the State as data gatekeeper. Yet, the link between these intervention on the Web and land governance is not obvious and remain to be explored. Keywords - Land tenure ; Commons ; Internet ; Governance ; Conflict [less ▲]

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See detailSystème familial et abus sexuel : Différence et répétition
Englebert, Jérôme ULiege

Conference (2017, December 01)

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See detailImpact d’une réathlétisation précoce sur les performances des sportifs amateurs opérés d’une rupture du ligament croisé du genou
Duval, Thomas; LEHANCE, Cédric ULiege; Croisier, Jean-Louis ULiege et al

in Journal de Traumatologie du Sport (2017), 34(4), 203-207

The analysis of the isokinetic test and the questionnaire of KOOS, enabled us to note differences between the two groups using quantifiedvalues; however, the results were significant. On the other hand ... [more ▼]

The analysis of the isokinetic test and the questionnaire of KOOS, enabled us to note differences between the two groups using quantifiedvalues; however, the results were significant. On the other hand, the analysis of the results obtained through the functional tests showed significantdifferences between the two groups, highlighting the increased performance and benefit for the group participating in weekly reathletization.Conclusion. – In the preliminary study, the quantified values for both groups indicated a greater improvement, but non-significant, in the performancesof the experimental group. A study with more large population should be undertaken. [less ▲]

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See detailAs teorias semióticas face à fotografia
Dondero, Maria Giulia ULiege

in Calavari, Suzi; Rodrigues, Angelica; Rocha, Nildicéia (Eds.) Proceedings VI SELIN – NOVAS PRÁTICAS EM PESQUISA SOBRE A LINGUAGEM: ROMPENDO FRONTEIRAS (2017, December)

Dans ce texte, je me propose de revenir sur les travaux en sémiotique qui ont marqué les études du champ interdisciplinaire de la photographie et de les poursuivre; l’objectif principal est de fournir ... [more ▼]

Dans ce texte, je me propose de revenir sur les travaux en sémiotique qui ont marqué les études du champ interdisciplinaire de la photographie et de les poursuivre; l’objectif principal est de fournir quelques pistes pour étudier, d’un point de vue sémiotique, l’image photographique en tant qu’objet pris dans des pratiques d’usage et d’interprétation diversifiées au sein des statuts sociaux de l’art, de la science, de la religion. [less ▲]

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See detailVariable‐energy electron ionisation for GC×GC forensic blood VOC profiling
Dubois, Lena ULiege; Perrault, Katelynn ULiege; Stefanuto, Pierre-Hugues ULiege et al

Scientific conference (2017, December)

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See detailTraduction en langue française de la version longue du « Back Pain Attitudes Questionnaire » et étude de ses qualités psychométriques
Demoulin, Christophe ULiege; Halleux, Valentine; Darlow, Ben et al

in Mains libres (2017), 4

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See detailData-driven probabilistic post-earthquake fire ignition model for a community
Elhami Khorasani, Negar; Gernay, Thomas ULiege; Garlock, Maria

in Fire Safety Journal (2017), 94

Fire following earthquake (FFE), a cascading multi-hazard event, can cause major social and economical losses in a community. In this paper, two existing post-earthquake fire ignition models that are ... [more ▼]

Fire following earthquake (FFE), a cascading multi-hazard event, can cause major social and economical losses in a community. In this paper, two existing post-earthquake fire ignition models that are implemented in Geographic Information System (GIS) based platforms, Hazus and MAEViz/Ergo, are reviewed. The two platforms and their FFE modules have been studied for suitability in community resiliency evaluations. Based on the shortcomings in the existing literature, a new post-earthquake fire ignition model is proposed using historical FFE data and a probabilistic formulation. The procedure to create the database for the model using GIS-based tools is explained. The proposed model provides the probability of ignition at both census tract scale and individual buildings, and can be used to identify areas of a community with high risk of fire ignitions after an earthquake. The model also provides a breakdown of ignitions in different building types. Finally, the model is implemented in MAEViz/Ergo to demonstrate its application in a GIS-based software. [less ▲]

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See detailLe mystère de la disparition des dinosaures
Fischer, Valentin ULiege

Conference given outside the academic context (2017)

Les dinosaures captent l'imaginaire populaire par leurs tailles et leurs morphologies parfois démesurées. Ils véhiculent ainsi, assez logiquement, une image d'un groupe animal résistant et innovant ... [more ▼]

Les dinosaures captent l'imaginaire populaire par leurs tailles et leurs morphologies parfois démesurées. Ils véhiculent ainsi, assez logiquement, une image d'un groupe animal résistant et innovant, capable de résister aux changements de la Terre. Or, à l'heure actuelle, il ne subsiste des dinosaures qu'un seul groupe de théropodes, les oiseaux. Ceci est résultat d'une extinction dite "de masse" qui s'est déroulée il y a 66 millions d'années, à la fin du Crétacé. Nous analyserons le détail et le contexte de cette disparition afin de comprendre les raisons biologiques, géologiques voire spatiales pouvant amener des groupes diversifiés peuvent être amenés à l'extinction. [less ▲]

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See detailTraumatologie des sports olympiques de ballon en salle. Partie 3 : le volley-ball et comparaison des 3 sports
Kaux, Jean-François ULiege; Roberjot, Mathieu; DELVAUX, François ULiege et al

in Journal de Traumatologie du Sport (2017), 34(4), 217-222

In volleyball, there is no contact between opponents (excepting faults). Overloading injuries are very frequent, and often involve the knee joint(jumper’s knee), the shoulders (cuff injuries), or the ... [more ▼]

In volleyball, there is no contact between opponents (excepting faults). Overloading injuries are very frequent, and often involve the knee joint(jumper’s knee), the shoulders (cuff injuries), or the spine (spondylolysis). Ankle sprains is the most common trauma, mainly occurring during theattack phase and in the defense position at the net. Among the three Olympic indoor ball sports, volleyball produces the least number of seriousinjuries due to the absence of contact between opponents. Trauma prevalence is mainly observed during games and when the playing surface isinappropriate. [less ▲]

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See detailBis(formylphenolato)cobalt(II)-mediated alternating radical copolymerization of tert-butyl 2-trifluoromethylacrylate with vinyl acetate
Banerjee, Sanjib; Bellan, Ekaterina V.; Gayet, Florence et al

in Polymers (2017), 9(12), 705

The organometallic-mediated radical polymerization (OMRP) of vinyl acetate (VAc) and its OMR copolymerization (OMRcoP) with tert-butyl 2-trifluoromethylacrylate (MAF-TBE) mediated by Co(SAL)2 (SAL = 2 ... [more ▼]

The organometallic-mediated radical polymerization (OMRP) of vinyl acetate (VAc) and its OMR copolymerization (OMRcoP) with tert-butyl 2-trifluoromethylacrylate (MAF-TBE) mediated by Co(SAL)2 (SAL = 2-formylphenolato or deprotonated salicylaldehyde) produced relatively well-defined PVAc and poly(VAc-alt-MAF-TBE) copolymers at moderate temperature (<40 ◦C) in bulk. The resulting alternating copolymer was characterized by 1H-, 13C- and 19F-nuclear magnetic resonance (NMR) spectroscopies, and by size exclusion chromatography. The linear first-order kinetic plot, the linear evolutions of the molar mass with total monomer conversion, and the relatively low dispersity (Đ~1.55) of the resulting copolymers suggest that this cobalt complex provides some degree of control over the copolymerization of VAc and MAF-TBE. Compared to the previously investigated cobalt complex OMRP mediators having a fully oxygen-based first coordination sphere, this study emphasizes a few peculiarities of Co(SAL)2: a lower ability to trap radical chains as compared to Co(acac)2 and the absence of catalytic chain transfer reactions, which dominates polymerizations carried in the presence of 9-oxyphenalenone cobalt derivative. [less ▲]

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See detailAlbertina, más viva que muerta
Dubois, Jacques ULiege; Mogollon Zapata, Juan Manuel ULiege

in Revista Linguística y Literatura (2017), 72(38), 272-287

El siguiente texto hace parte de un reciente libro que Jacques Dubois tituló Figuras del deseo. Por una crítica amorosa (Les Impressions Nouvelles, 2011). A Dubois lo conocemos hoy en día como fundador ... [more ▼]

El siguiente texto hace parte de un reciente libro que Jacques Dubois tituló Figuras del deseo. Por una crítica amorosa (Les Impressions Nouvelles, 2011). A Dubois lo conocemos hoy en día como fundador del famoso Grupo μ, al que le debemos la Retórica general (1970), como autor en 1978 de una obra fundamental para la sociología de la literatura, La institución de la literatura, y como especialista de Georges Simenon y de la literatura francesa de los siglos xix y xx. En su último libro, el científico riguroso cede la palabra al lector ferviente, crítico-amoroso desconcertante y lleno de imaginación, pero que no deja de sorprendernos con una nueva propuesta metodológica que bien podría calificarse como «una lectura activa del deseo». ¿En qué consiste esta «crítica amorosa»? ¿Cómo definirla? Se trata, ante todo, de una lectura en la que el crítico, animado por su deseo, rehúsa desempeñar un rol pasivo para intervenir así en la narración que le da vida a los personajes, dejando al mismo tiempo que estos se inmiscuyan en el relato de su propia vida. ¡Y su intervención resulta reveladora! Habitado por el mundo de la novela, el crítico «activo e imaginativo» que es Dubois termina por colaborar con el novelista, o por lo menos con el narrador, para desentrañar los posibles significados del universo narrativo, pero también para encontrar allí posibles fisuras en las que pueda deslizar su potente acción creadora, abriendo así «la perspectiva de una novela que pudo haber sido otra cosa de lo que es» (Dubois, 2011, p. 8). Nos encontramos pues frente a una «lectura activa» que se erige entre las exigencias de significación impuestas por el texto y el deseo que este genera de prolongarlo, de transformarlo. Los vectores de dicho deseo serán los personajes mismos, que el crítico-amoroso acompaña y hace brillar en todas sus potencialidades significativas, dotándolos de una vida segunda. De ahí que, como lo señala el mismo Dubois, «la lectura activa, en su versión amorosa, adquiera derechos sobre la ficción» (p. 10) sin que esto signifique por lo tanto que se traicione el texto, pues se trata más bien de hacerlo explotar. Y es en esta explosión que surge la pregunta, latente en la nueva propuesta que nos hace Dubois, por el acto de la lectura: «¿Qué significa amar un personaje?» ¿Cómo se desarrolla una lectura crítica y creadora? La respuesta nos llevará a lo que podríamos llamar desde ya una lectura social del deseo en la que se opera «un deslizamiento progresivo del placer y de lo sexual hacia lo social», como lo muestra el autor en el siguiente capítulo. [less ▲]

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See detailEnteropathogenic Escherichia coli O80:H2 in Young Calves with Diarrhea, Belgium
Thiry, Damien ULiege; Saulmont, Marc; Takaki, Shino et al

in Emerging Infectious Diseases (2017), 23(12),

Serogroup O80 was detected in 40% of 104 enteropathogenic Escherichia coli isolates from calves with diarrhea from 42 farms in Belgium during 2008‒2015. These isolates harbored the eae-ξ and fliCH2 genes ... [more ▼]

Serogroup O80 was detected in 40% of 104 enteropathogenic Escherichia coli isolates from calves with diarrhea from 42 farms in Belgium during 2008‒2015. These isolates harbored the eae-ξ and fliCH2 genes, similar to the O80 attaching-effacing Shigatoxigenic E. coli isolates found in humans in France. This strain might be emerging. [less ▲]

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See detailNon-renewable and intermittent renewable energy sources: friends and foes?
Jacqmin, Julien ULiege; Barranes, Edmond; Poudou, Jean-christophe

in Energy Policy (2017), 111

This paper studies the links between non-renewable and intermittent renewable energy sources in the production of electricity. Using U.S. state-level data from 1998 to 2015, we find that the relationship ... [more ▼]

This paper studies the links between non-renewable and intermittent renewable energy sources in the production of electricity. Using U.S. state-level data from 1998 to 2015, we find that the relationship between the price of natural gas and investments in solar and wind capacity is non-linear and can be represented by an inverted U-shape. Hence, for relatively low natural gas prices, the two modes of production are substitutes. After a price threshold is reached, the two are complementary. A theoretical explanation argues that this stylized fact is the result of a trade-off between two characteristics of these modes of production: the high degree of flexibility of electricity production using natural gas as an input and the low marginal cost of renewable energy sources. [less ▲]

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See detailLe droit à la liberté d'expression du travailleur salarié : le devoir de loyauté et le whistle-blowing
Cordier, Quentin ULiege

in Revue de la Faculté de Droit de l'Université de Liège (2017), 3

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See detailNormalizing shoulder EMG: an optimal set of maximum isometric voluntary contraction tests considering reproducibility
Schwartz, Cédric ULiege; Tubez, François ULiege; WANG, François-Charles ULiege et al

in Journal of Electromyography and Kinesiology (2017), 37

Normalization of the electromyography (EMG) signal is often performed relatively to maximal voluntary activations (MVA) obtained during maximum isometric voluntary contraction (MVIC). The first aim was to ... [more ▼]

Normalization of the electromyography (EMG) signal is often performed relatively to maximal voluntary activations (MVA) obtained during maximum isometric voluntary contraction (MVIC). The first aim was to provide an inter-session reproducible protocol to normalize the signal of eight shoulder muscles. The protocol should also lead to a level of activation >90% of MVA for >90% of the volunteers. The second aim was to evaluate the influence of the method used to extract the MVA from the EMG envelope on the normalized EMG signal. Thirteen volunteers performed 12 MVICs twice (one-week interval). Several time constants (100 ms to 2 s) were compared when extracting the MVA from the EMG envelope. The EMG activity was also acquired during an arm elevation. Our results show that a combination of nine MVIC tests was required to meet our requirements including reproducibility. Both the number of MVIC tests and the size of the time constant influence the normalized EMG signal during the dynamic activity (variations up to 15%). A time constant of 1 s was a good compromise to extract the MVA. These findings are valuable to improve the reproducibility of EMG signal normalization. [less ▲]

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See detailThe Belgian Internet Investigatory Powers Act – A Model to Pursue at European Level?
Franssen, Vanessa ULiege

in European Data Protection Law Review (2017), (4), 534-542

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See detailEl despertar de las relaciones UE-América Latina en la era Trump: entre percepción y realidad
Wintgens, Sophie ULiege

in Bizzozero Revelez, Lincoln; Fernández Luzuriaga, Wilson (Eds.) Anuario Política Internacional & Política Exterior 2016-2017. Sacudones ciudadanos, rupturas del mundo anglo-sajón e incertidumbres globales (2017)

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