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See detailRéflexions sur les rapports réels et pratiques de la psychologie et la philosophie phénoménologique
Recchia, Fabio ULg

Conference (2016, July 01)

S'inspirant d'une conférence de Marcel Mauss ("Rapports réels et pratiques de la psychologie et de la sociologie"), cette communication procède à une mise au point sur les rapports existant actuellement ... [more ▼]

S'inspirant d'une conférence de Marcel Mauss ("Rapports réels et pratiques de la psychologie et de la sociologie"), cette communication procède à une mise au point sur les rapports existant actuellement entre la psychopathologie et la philosophie phénoménologique. Ainsi nous proposons de qualifier les rapports existant entre la philosophie et les sciences humaines. Pour ce faire, nous mobilisons librement les remarques de "L'Être et le Néant" sur la personnalisation de la conscience et les réflexions de Giovanni Stanghellini sur la notion de "Senso commune". L'une et l'autre permettent en effet de faire le compte des relations pratiques qui existent entre les objets phénoménologiques de la philosophie et ceux de la psychopathologie De même, elles précisent la nature des oppositions entre les instruments de connaissance qui sont mobilisés par chaque discipline. De sorte que notre propos s'installe fermement dans les tensions qui séparent la philosophie des sciences humaines, bien que nous nous en nourrissions pour élaborer un programme de recherches communs aux deux camps : celui d'une "phénoménologie clinique". [less ▲]

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See detailCOST Action FA1407: Empowering NGS technologie for study and diagnostic of plant viruses
Massart, Sébastien ULg; Petter, François

Conference (2016, July)

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See detailContinuous monitoring of transient groundwater fluxes using the Finite Volume Point Dilution Method
Jamin, Pierre ULg; Brouyère, Serge ULg

Conference (2016, July)

Groundwater flux is the driving force of solute contaminant dispersion through aquifers. Accurate groundwater flux measurement and monitoring is thus crucial for assessing the fate of contaminants in the ... [more ▼]

Groundwater flux is the driving force of solute contaminant dispersion through aquifers. Accurate groundwater flux measurement and monitoring is thus crucial for assessing the fate of contaminants in the saturated zone. Unfortunately, classical measurement such as pumping or slug tests based on the Darcy’s law and hydraulic gradient may lead to cumulated errors and provide no more than a snapshot measurement only representative of a given time. There is a need for a technique able to perform a continuous monitoring of groundwater fluxes, and moreover in aquifer where rapid changes of groundwater fluxes occur such as aquifers influenced by surface water, by nearby pumping or by fast precipitation recharge. Alternative methods, such as point dilution tracer tests to obtain a direct measurement of local groundwater fluxes, are promising In this study, the Finite Volume Point Dilution Method (FVPDM) was applied to continuously monitor groundwater fluxes of the alluvial aquifer of the River Meuse, in Liège (Belgium). The experimental setup consisted in the monitoring of a transient groundwater fluxes generated by a step pumping test that lasted 40 hours. Two FVPDM were performed simultaneously in two piezometers screened in two different part of the aquifer. Piezometric heads were also monitored in several piezometer located around the pumping well. Next to this original experimental setup, a mathematical solution has been developed to interpret data from FVPDM performed under transient state in order to deduce the continuous evolution of groundwater flux. The experiment demonstrated the ability of the FVPDM for monitoring transient groundwater fluxes, even if the changes of groundwater flux occurs rapidly. The FVPDM turned out to be very sensitive to small changes in groundwater flux. The FVPDM interpretation also showed that the upper part of the aquifer is affected by slower groundwater fluxes than the lower and coarser part. Furthermore, distinct hydraulic behavior were determined between the upper and lower part of the aquifer. This could not have been revealed by conventional pumping tests using only drawdown data for interpretation. The mathematical solution allowed to determine the groundwater flux at every moment of the test even if the FVPDM had not reached the stabilized phase that usually guarantee its good precision. These results illustrate the great interest of the FVPDM method for monitoring of contaminant fluxes in groundwater if coupled with a real time measurement of contaminant concentration. One of the main perspective is to perform a long term (several months) monitoring of groundwater fluxes in an aquifer influenced by river stages variations in order to prove the ability of the FVPDM for continuous long term monitoring and better characterize the exchanges between groundwater and surface water. [less ▲]

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See detailQuadratic reformulations of nonlinear binary optimization problems
Crama, Yves ULg

Conference (2016, July)

A {\em pseudo-Boolean function} is a real-valued function $f(x)=f(x_1,x_2,\ldots,x_n)$ of $n$ binary variables, that is, a mapping from $\{0,1\}^n$ to $\mathbf R$. \emph{Nonlinear binary optimization ... [more ▼]

A {\em pseudo-Boolean function} is a real-valued function $f(x)=f(x_1,x_2,\ldots,x_n)$ of $n$ binary variables, that is, a mapping from $\{0,1\}^n$ to $\mathbf R$. \emph{Nonlinear binary optimization problems} of the form \begin{equation}\label{eq:PBO} \min \{ f(x) : x \in \{0,1\}^n \}, \end{equation}, where $f$ is a pseudo-Boolean function expressed as a multilinear polynomial in its variables, are notoriously difficult. For a pseudo-Boolean function $f(x)$ on $\{0,1\}^n$, we say that $g(x,y)$ is a \emph{quadratization} of $f$ if $g(x,y)$ is a quadratic polynomial depending on $x$ and on $m$ \emph{auxiliary} binary variables $y_1,y_2,\ldots,y_m$ such that $f(x)= \min \{ g(x,y) : y \in \{0,1\}^m \} $ for all $x \in \{0,1\}^n$. By means of quadratizations, minimization of $f$ is reduced to minimization (over the extended set of variables) of the quadratic function $g(x,y)$. This is of practical interest because minimization of quadratic functions has been thoroughly studied for the last few decades, and much progress has been made in solving such problems exactly or heuristically. This talk addresses two main types of questions. First, we want to determine the minimum number of auxiliary $y$-variables required in a quadratization of an arbitrary function~$f$. This question is rather natural since the complexity of minimizing the quadratic function $g(x,y)$ heavily depends (among other factors) on the number of binary variables~$(x,y)$. We establish tight lower and upper bounds on the number of auxiliary variables needed in such a reformulation. Next, we determine more precisely the number of auxiliary variables required by quadratizations of \emph{symmetric} pseudo-Boolean functions $f(x)$, i.e., functions whose value only depends on the number of variables equal to~$1$. [less ▲]

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See detailPerformances comparison of a laser ultrasonic system using 10.6 µm infrared or 532 nm visible generation beam for the investigation of CFRP
Vandenrijt, Jean-François ULg; Walter, Julien; Brouillette, Tomy et al

Conference (2016, July)

The investigation of complex shaped carbon fiber parts is a common need of the industry. Classical ultrasonic systems are commonly used, wide-spread and very efficient. However, these techniques are often ... [more ▼]

The investigation of complex shaped carbon fiber parts is a common need of the industry. Classical ultrasonic systems are commonly used, wide-spread and very efficient. However, these techniques are often limited to simple shape objects. Major problems arise when the shape of the element to be investigated is complex (peak, valley, small radius of curvature…). To overcome these problems laser ultrasonic systems can be used and the recent developments show promising results. Laser ultrasonic systems can use different wavelengths for ultrasound generation. Usually CO2 lasers emitting at 10.6 µm wavelength are used. When a laser ultrasonic system is mounted on a robotic arm, very complex shaped objects can be considered. However, the optical fibers for 10.6 µm wavelength are not capable to cope with laser ultrasonic system requirements. Therefore, infrared systems use jointed articulated beam delivery systems which reduce the flexibility of the robot arm and significantly limit the feasible scan paths. To circumvent this limitation, an all-fibered laser ultrasonic system can be used. In our case the ultrasound is generated with a pulsed laser operating at 532 nm. This system is placed on a robotic arm, the beam delivery is performed through an optical fiber only. Therefore, this system is capable of analyzing very complex shaped objects due to the use of optical fiber only for laser beam transport. But visible generation is known to be less efficient and produces lower quality signals. In order to balance the advantages and limitations of both of these systems a CFRP plate including artificial defects has been investigated with different ultrasonic systems. First we used classical phased-array ultrasounds as a reference to compare the performances of visible and infrared generation systems. The plate has then been investigated with a 10.6 µm laser ultrasonic system. The results are compared with an all-fibered laser ultrasonic system working at 532 mn wavelength. Data acquired by each system allow comparing the visibility of the ultrasonic echoes and the amplitude of background noise. We observe the impact of frequency filtering. We show the main differences on the A-scans and C-scan generated by each system. From these elements, we show the advantages and limitations of each system for the investigation of CFRP with a focus on complex shaped object. [less ▲]

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See detailOn (Eventually) Monotone Dynamical Systems and Positive Koopman Semigroups
Sootla, Aivar ULg; Mauroy, Alexandre ULg

Conference (2016, July)

Monotone systems are dynamical systems whose solutions preserve a partial order in initial conditions for all times. It stands to reason that some systems may preserve a partial order only after an ... [more ▼]

Monotone systems are dynamical systems whose solutions preserve a partial order in initial conditions for all times. It stands to reason that some systems may preserve a partial order only after an initial transient. These systems are usually called eventually monotone. While monotone systems have an easy characterization in terms of the sign pattern of the Jacobian matrix (i.e. Kamke-M\"uller condition), eventually monotone systems have not been characterized in such an explicit manner. In order to provide such a characterization, we drew inspiration from the results for linear systems, where eventually monotone (positive) systems are studied using the spectral properties of the system (i.e. Perron-Frobenius property). In the case of nonlinear systems, a spectral characterization of nonlinear eventually monotone systems is not straightforward, but can be obtained in the framework of the so-called Koopman operator. Additionally, we explore connections between (eventual) monotonicity and (eventual) positivity of the Koopman semigroup. This allows to view our results as a generalization of the Perron-Frobenius theory to nonlinear dynamical systems. We consider a biologically inspired example to illustrate the applicability of eventual monotonicity. [less ▲]

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See detailIs there an alphabet of Moroccan cuisine? Notes on the materiality of cooking and eating.
Mescoli, Elsa ULg

Conference (2016, July)

Short Abstract Stemming from the ethnographic material collected during an eighteen months fieldwork conducted among a group Moroccan of women in Milan to study their food practices, this paper focuses on ... [more ▼]

Short Abstract Stemming from the ethnographic material collected during an eighteen months fieldwork conducted among a group Moroccan of women in Milan to study their food practices, this paper focuses on the materiality of cooking and eating through adopting a micro-structural approach. Long Abstract Inspired by the work of Lévi-Strauss (1964) aimed at identifying the relationships of mutual intelligibility underlying some social and cultural facts such as the treatment of food, this paper will focus on the materiality of cooking and eating through adopting a micro-structural approach. The ethnographic data collected during an eighteen months fieldwork conducted among a group of Moroccan women in Milan to study their cooking and eating habits will be analysed by paying particular attention to the practices and elements that made the "alphabet" of Moroccan cuisine. This means that, if we considered dishes as complex sentences which can be deciphered by people that share a same language, we could try to identify the littlest components that made them happen. Which norms regulated the combination of ingredients? Which ways of cooking described this food culture? Which gestures and embodied knowledge seemed essential to give an intelligible cultural connotation to the cooking and eating of food? Which variations were admitted? The analysis of the actors' discourses and practices will show how Lévi-Strauss approach and model to the study of foodways can meet a material culture approach and still be relevant nowadays. [less ▲]

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See detailDe l’activation à la précarité : analyse de deux dispositifs d’intervention sociale
Gérard, Julie ULg; Vrancken, Didier ULg

Conference (2016, July)

La lutte contre le chômage de longue durée et l’exclusion sociale par un retour à l’emploi représentent des enjeux essentiels des politiques actives du marché du travail. C’est pourquoi, cette ... [more ▼]

La lutte contre le chômage de longue durée et l’exclusion sociale par un retour à l’emploi représentent des enjeux essentiels des politiques actives du marché du travail. C’est pourquoi, cette communication s’intéresse aux effets de l’intervention sociale sur les demandeurs d’emploi à partir de l’analyse de deux dispositifs d’activation situés en Belgique francophone : une Entreprise de Formation par le Travail et une agence de Titres-Services. Au moyen d’une étude qualitative reposant sur une soixantaine d’observations de situations d’interactions réalisée entre bénéficiaires et « travailleurs du social » (consultant, assistant social, formateur, etc.) et, d’une quarantaine d’entretiens semi-directifs, nous rendrons compte de l’action de ces deux dispositifs dans le domaine de l’insertion-socioprofessionnelle. Nous illustrerons combien, par l’articulation de politiques d’emploi à vocation universelle et de politiques particularistes destinées aux personnes les plus fragiles, ces dispositifs génèrent de véritables trappes à précarité. À terme, nous montrerons combien le maintien de ces dernières soulève la question du développement progressif d’un nouveau régime de protections, opérant a minima, voire par défaut, auprès des publics peu qualifiés face à la menace sourde que font peser le marché noir et, plus largement, l’informalité du travail. [less ▲]

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See detailDifferent together: How cooperative networks contribute to sustaining workers’ participation as an institutional differentiation
Soetens, Aurélie ULg; Huybrechts, Benjamin ULg

Conference (2016, July)

This conceptual article aims at understanding how unconventional organizations may maintain distinctive organizing norms, rules and practices over time despite various constraining factors stemming from ... [more ▼]

This conceptual article aims at understanding how unconventional organizations may maintain distinctive organizing norms, rules and practices over time despite various constraining factors stemming from the institutional environment. It proposes a framework of inward-outward identity work and legitimation that describes how workers’ co-operative networks may help workers’ co-operatives sustaining workers’ participation over time. It is argued that by mobilizing the identity collectively constructed by organizations in the network, and by justifying the institutional differentiation in front of external constituents, networks may alter the legitimacy judgments of audiences and mediate the salience of institutional demands. In particular, they may secure social acceptance and ensure the maintenance of the institutional differentiation over time. [less ▲]

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See detailHeritage Conservation in River Corridor Cities. The Case of Tripoli, Lebanon.
Ginzarly, Manal ULg; Teller, Jacques ULg

Conference (2016, July)

This article recognizes rivers as cultural heritage landscapes, as an integral component of cities common heritage and an element of collective memory and identity. It is based on the consideration that ... [more ▼]

This article recognizes rivers as cultural heritage landscapes, as an integral component of cities common heritage and an element of collective memory and identity. It is based on the consideration that analysis of the socio-spatial relationship between the river and urban structure at different historical period can further lead to knowledge about the river contribution in forming the identity and sense of place of an urban area. This knowledge can be used to inform urban conservation as well as development practices to support the integral spatial and cultural relation between the city and the river in order to maintain the character of river city. This article takes the historic core in the city of Tripoli, Lebanon as a case study where conservation practices have followed a monument centric approach focusing on the restoration of heritage buildings and sites and neglecting the cultural value of the Abu Ali River flowing through the city. It conducts a multi- dimensional morphological analysis that is based on archival review and field work to extract the social value of the river and its contribution to the urban morphology of the city. [less ▲]

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See detailBRAIN-TRAINS: Scenario development to explore intermodal rail transport expansion in, from and towards Belgium
Troch, Frank; Vanelslander, Thierry; Sys, Christa et al

Conference (2016, July)

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See detailLe dossier CAPAES : outil de professionnalisation des formateurs?
Scheepers, Caroline ULg

Conference (2016, July)

Aujourd’hui, les formateurs des hautes écoles belges francophones sont tenus de décrocher le CAPAES, pour lequel il faut avoir validé des cours universitaires et avoir présenté devant une commission ... [more ▼]

Aujourd’hui, les formateurs des hautes écoles belges francophones sont tenus de décrocher le CAPAES, pour lequel il faut avoir validé des cours universitaires et avoir présenté devant une commission composite un dossier professionnel. Lequel dossier mobilise de solides compétences réflexives, puisque son auteur doit faire état de son parcours professionnel, mais aussi analyser et décrire un dispositif didactique dans lequel il est impliqué et dont il doit montrer le caractère professionnalisant. Ma contribution vise à rendre compte d’une vaste enquête adressée aux formateurs qui réalisé ce dossier professionnel. Qu’ont-ils appris par le biais de cette épreuve? Quelles difficultés ont-ils rencontrées ? Quelles tensions ont émergé ? Ont-ils été soutenus pour effectuer la tâche prescrite ? Estiment-ils qu’elle fut professionnalisante? Ont-ils révisé leurs conceptions en matière d’écriture ? Enfin, ont-ils reconsidéré leur façon d’encadrer les tâches d’écriture des étudiants? [less ▲]

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See detailThe theoretical instability strip of V777 Her white dwarfs
Van Grootel, Valérie ULg; Fontaine, Gilles; Brassard, Pierre et al

Conference (2016, July)

We present a new theoretical investigation of the instability strip of V777 Her (DBV) white dwarfs. We apply a time-dependent convection (TDC) treatment to cooling models of DB and DBA white dwarfs. Using ... [more ▼]

We present a new theoretical investigation of the instability strip of V777 Her (DBV) white dwarfs. We apply a time-dependent convection (TDC) treatment to cooling models of DB and DBA white dwarfs. Using the spectroscopic calibration for the convective efficiency, ML2/alpha=1.25, we find a wide strip covering the range of effective temperature from 30,000 K down to about 22,000 K at log g = 8.0. This accounts very well for the empirical instability strip derived from a new accurate and homogenous spectroscopic analysis of known pulsators. Our approach leads to an exact description of the blue edge and to a correct understanding of the onset and development of pulsational instabilities, similarly to our results of TDC applied to ZZ Ceti white dwarfs in the recent past. We propose that, contrarily to what is generally believed, there is practically no fuzziness on the boundaries of the V777 Her instability strip due to traces of hydrogen in the atmospheres of some of these helium-dominated-atmosphere stars. Contrary to the blue edge, the red edge provided by TDC computations is far too cool compared to the empirical one. A similar situation was observed for the ZZ Ceti stars as well. We hence test the energy leakage argument (i.e., the red edge occurs when the thermal timescale in the driving region becomes equal to the critical period beyond which gravity modes cease to exist), which was successful to correctly reproduce the red edge of ZZ Ceti white dwarfs. Based on this argument, the red edge is qualitatively well reproduced as indicated above. However, upon close inspection, it may be about 1000 K too cool compared to the empirical one, although the latter relies on a few objects only. We also test the hypothesis of including turbulent pressure in our TDC computations in order to provide an alternate physical mechanism to account for the red edge. First promising results are presented. [less ▲]

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See detailThe mechanical control of peri-implant bone remodeling investigated by in vivo imaging and in silico modeling
Li, Zihui; Betts, Duncan; Kuhn, Gisela et al

Conference (2016, July)

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See detailPerception of pitch accuracy in melodies: A categorical or continuous phenomenon?
Larrouy, Pauline ULg; Franz, Simone; Poeppel, David

Conference (2016, July)

In western music, a semitone constitutes a theoretical and perceptual boundary between tones and is defined as a unit for categorical perception of intervals (Burns & Ward, 1978). However, melodic ... [more ▼]

In western music, a semitone constitutes a theoretical and perceptual boundary between tones and is defined as a unit for categorical perception of intervals (Burns & Ward, 1978). However, melodic perception does not rely exclusively on this category but also involves the notion of ‘correctness’. If we usually classify melodies as “in tune” or “out of tune” depending on the size of interval deviations (smaller than a semitone) along melodies, the transition between the two categories remains unclear. This study examines the process involved in pitch accuracy perception. Twenty-five participants identified melodies as “in tune” or “out of tune” and rated their confidence for each answer. The pitch manipulation consisted of the enlargement of an interval in 5 cent steps (from 0 to 50 cent deviation). The interval deviated was either a Major 2nd or a Perfect 4th and occurred in the middle or end of a 6-tone melody. The task was run twice, before and after an explicit definition of the two labels. Repeated measure ANOVAs were conducted to examine the effect of the deviation on the proportion of in- tune answers and on the confidence levels. For the participants who were able to learn the labels (n = 20), the proportion of in tune answers varies greatly according to the amplitude of the deviation and depended on the size of the interval manipulated. Associated with the confidence level measurement, the identification data support a categorical perception process. Interestingly, explicitly learning the labels increased the overall confidence but did not modify drastically the profile of the categories and the process behind the categorization. This study suggests that explicit learning is not necessary to develop higher order categories relative to “correctness”. Nevertheless, such a process seems limited to certain intervals. Further investigation of other intervals and individual differences seems promising to better understand the mechanisms underlying music perception. [less ▲]

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See detailSymposium. Quels leviers pour aider les élèves à résoudre des tâches complexes ?
Colognesi, Stéphane; Fagnant, Annick ULg; Hanin, Vanessa et al

Conference (2016, July)

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See detailPlanifier les leçons de stage
Scheepers, Caroline ULg

Conference (2016, July)

Il semble que la recherche se soit abondamment consacrée à ces écrits professionnalisants de nature scientifique et/ou réflexive que sont les mémoires professionnels, les portfolios ou les journaux de ... [more ▼]

Il semble que la recherche se soit abondamment consacrée à ces écrits professionnalisants de nature scientifique et/ou réflexive que sont les mémoires professionnels, les portfolios ou les journaux de bord. Mais si ces écrits visent à professionnaliser les enseignants, au sens où ils cherchent à leur faire acquérir des compétences professionnelles solides et des composantes identitaires positives (Beckers, 2007), ils restent généralement l’apanage du seul cursus académique. Une fois diplômés, les enseignants novices sont appelés à produire de véritables écrits professionnels, au rang desquels les préparations de cours occupent une place de choix. Dès lors, s’observe un hiatus certain entre les écrits en formation et les écrits du praticien. Ce hiatus peut s’expliquer et être légitimé par plusieurs motifs. Il n’en reste pas moins que les préparations de cours s’inscrivent au cœur du métier d’enseignant. Nous avons affaire à un écrit pleinement professionnalisant, mais aussi à un écrit professionnel tout à fait central dans la vie quotidienne des praticiens. Pourtant, les préparations, pour omniprésentes qu’elles soient dans les cursus académiques préparant au métier et dans les pratiques des enseignants, constituent une sorte de point aveugle pour la recherche. Ainsi, dès 2002, Jaubert et Rebière estimaient que les préparations de cours des stagiaires avaient fait l’objet de très peu d’investigations : or, insistent-elles, la préparation écrite constitue un écrit traditionnel emblématique pour la culture du monde enseignant (2002 : 130). L’ouvrage édité par Daunay (2011) à propos des écrits professionnels des enseignants consacre certains de ses chapitres à cette problématique, mais de très nombreuses questions restent à envisager. Un récent numéro des Cahiers pédagogiques (n°518, 2015) quant à lui, se penche sur les écrits professionnels des praticiens en exercice. Précédemment (Scheepers, 2013), j’ai pu interroger des enseignants, novices ou chevronnés, sur les stratégies qu’ils utilisent pour planifier leur intervention didactique. Mon article dans le Français aujourd’hui (Scheepers, 2014) envisage notamment les postures adoptées par les stagiaires dans leurs préparations et les spécificités propres aux séquences visant à faire écrire les élèves. Une autre de mes contributions (Scheepers, à paraître) envisage un corpus de plusieurs dizaines de préparations écrites par des stagiaires sous l’angle du triangle didactique (Houssaye, 1988), ce qui permet d’examiner comment se déclinent dans ces traces sémiotiques spécifiques ces trois dimensions que sont l’élève, le savoir et l’enseignant. Mais, en matière de préparations de cours, beaucoup reste à faire sur un plan scientifique. Lors de cette table ronde, je tenterai d’établir une synthèse quant à mes recherches relatives à la planification des apprentissages, dimension centrale pour l’entrée dans le métier d’enseignant. [less ▲]

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See detailSize and Value Matter But Not the Way You Thought
Lambert, Marie ULg; Hübner, Georges ULg; Fays, Boris ULg

Conference (2016, July)

We propose a simple but fundamental methodological change to Fama and French (1993) factor construction procedure. Consistent with Lambert and Hübner (2013) sequential sorting procedure to classify stocks ... [more ▼]

We propose a simple but fundamental methodological change to Fama and French (1993) factor construction procedure. Consistent with Lambert and Hübner (2013) sequential sorting procedure to classify stocks, our methodology controls ex ante for pricing errors produced by multifactor models. Our size and value factors deliver less specification errors when used to price portfolios, especially regarding low size and high B/M stocks. Furthermore, this alternative framework generates much stronger “turn-of-the-year” size and “through-the-year” book-to-market effects than conventionally documented. The factors also display a slight competitive advantage on the taxonomy of low turnover market anomalies defined by Novy-Marx and Velikov (2015). [less ▲]

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See detailDisrupted interaction between self and memory in patients with Alzheimer’s disease
Genon, Sarah ULg; Salmon, Eric ULg; Collette, Fabienne ULg et al

Conference (2016, July)

In humans, self and memory processes interact as evidenced by the self reference (SRE) and self reference recollection effects (SRRE). However, in patients with Alzheimer’s disease (AD), this relationship ... [more ▼]

In humans, self and memory processes interact as evidenced by the self reference (SRE) and self reference recollection effects (SRRE). However, in patients with Alzheimer’s disease (AD), this relationship can be disrupted. This was evidenced by impaired SRE and SRRE in AD for recognition of adjectives previously judged for self-relevance, as well as recall of names of people previously linked to the self. For both materials, a qualitative impairment of the recollective experience for the self-related items was also observed in AD. A neuroimaging approach suggested that reduced SRE is related to decreased grey matter volume in the lateral prefrontal cortex (lPFC). Thus, retrieval of recent self-related memories is impaired in relation to altered high-order processes in lPFC in AD. [less ▲]

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See detailModelling Type 1 Diabetes Mellitus Blood Glucose Dynamics as a Monotone System
Sootla, Aivar ULg; Cescon, Marzia

Conference (2016, July)

In this presentation, we study an FDA-approved Type 1 diabetes mellitus (T1DM) blood glucose dynamics simulator used in the majority of the practical studies on Artificial Pancreas (AP). We show that ... [more ▼]

In this presentation, we study an FDA-approved Type 1 diabetes mellitus (T1DM) blood glucose dynamics simulator used in the majority of the practical studies on Artificial Pancreas (AP). We show that under some physiologically plausible assumptions, the glucoregulatory system described by the model is monotone. This means that the system generates trajectories which are monotone with respect to specific changes in initial conditions and control signals. This strong property leads to many interesting observations. By using monotonicity, for example, it becomes straightforward to compute bounds on glucose concentration subject to variations in intake of carbohydrates and insulin injections. Monotonicity also rigorously justifies recent studies on fundamental limitations in glucose control. [less ▲]

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See detailFrom nature to culture? Lévi-Strauss' legacy and the study of contemporary foodways
Mescoli, Elsa ULg; Graf, Katharina

Conference (2016, July)

n the first volume of his Mythologiques, entitled The Raw and the Cooked, Claude Lévi-Strauss argued that the preparation of food is a form of language that reveals a society's structure. For Lévi-Strauss ... [more ▼]

n the first volume of his Mythologiques, entitled The Raw and the Cooked, Claude Lévi-Strauss argued that the preparation of food is a form of language that reveals a society's structure. For Lévi-Strauss, the so-called culinary triangle of the raw, the rotten and the cooked represents a semantic field within which the various forms of transformation of food from nature into culture play a key role. Since Lévi-Strauss, following extensive changes to food production, preparation and consumption, the notion of cooking has become ever more diversified, and became increasingly contentious. Yet, the multiple ways of combining and processing ingredients still give social and cultural meanings to food and trigger the creation of sociabilities and belongings through its own destruction (Gell 1986). This panel aims to explore Levi-Strauss' legacy and evaluate its usefulness in today's context from different angles, ranging from domestic food preparation to industrial production and global circulations of food. To what extent can this concept still provide an interpretative framework of topical food issues? Which contemporary myths does it shed light on? How could it be deployed to read the history of food and link it to contemporary questions? This panel welcomes papers on the history of food preparation, contemporary food preparation, including debates in professional and multimedia circles, various forms of food production and the possible transformation of food within globalised food markets. Although mobilizing a classic anthropological theory, this panel aims to be interdisciplinary and to present a diverse range of analytical perspectives. [less ▲]

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See detailBioclimatism in Architecture : an evolutionary perspective from vernacular architecture to eco-adaptive architecture
Nguyen, Anh Tuan; Reiter, Sigrid ULg

Conference (2016, July)

The well-known Darwinian evolutionary theory (1859) introduced natural selection as the most important mechanism of evolutionary processes at every level from biological systems, including species ... [more ▼]

The well-known Darwinian evolutionary theory (1859) introduced natural selection as the most important mechanism of evolutionary processes at every level from biological systems, including species, individual organisms… to molecules such as DNA or proteins. In architecture we observe similar evolution processes which lead to the development of various architectural movements and concepts from common primitive living structures. The study points out that the development of bioclimatism in architecture has followed the pattern of a natural evolutionary process in which “natural selection” is likely motivated by several factors, including resources and environment problems, and driven by different mechanisms including novel building design concepts and methods, new standards and codes, discoveries in building science and construction costs. Finally, this study investigates new motivations in the era of climate change whose effects are expected to introduce more challenges as well as more trends towards a sustainable built environment through the new concept of Eco-adaptive architecture. [less ▲]

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See detailLifetime stability study of a NIR hyperspectral imaging system
Eylenbosch, Damien ULg; Bodson, Bernard ULg; Baeten, Vincent et al

Conference (2016, July)

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See detailFast and not furious: an inquiry into the current low-risk/high-gain configuration of public participation
Rosskamp, Benedikt ULg; Delvenne, Pierre ULg; Charlier, Nathan ULg et al

Conference (2016, June 29)

For several years scholars pointed at the development of a “participatory turn” in science, technology and innovation (STI). Decisively informed by STS, “public involvement” and then “public engagement” ... [more ▼]

For several years scholars pointed at the development of a “participatory turn” in science, technology and innovation (STI). Decisively informed by STS, “public involvement” and then “public engagement” with STI have been enacted in a broad array of participatory experiments across Europe. These experiments were usually informed by rhetoric of citizen empowerment and distributed governance, against the limitations of technocratic approaches and traditional innovation processes, in order to “enrich”, “deepen”, “broaden” the knowledge base of our democracies. As “embarked researchers”, STS scholars played a crucial role in facilitating and legitimizing the organization of participatory events engaging a variety of publics. This paper will rely on the knowledge and expertise we gathered when organizing multiple participatory events over the last decade, while still trying maintain a critical distance with regard to our own engagement and the types of participation we contributed to enact. More specifically, we propose to draw on the lessons learnt from two recent projects, the organization of a citizens’ summit (Europe Wide Views on Sustainable Consumption) and a prospective study to gauge the potential of involving users in a Living Lab in the health sector in Wallonia. These two projects produced different publics (“citizens-consumers” or “users”), were informed by different political rationales (“sustainability” or “inclusive innovation”), took place in diverse settings (a European FP7 project or a project funded by the Walloon Region) and connected to several narratives of public empowerment through participation (“being heard in policymaking” or “accelerating and improving health”). Our contribution maps and compares the different instrumental and strategic framings of the engagement of publics in those two projects, emphasizing the roles attributed to fabricated publics but also the construction of categories such as the “state” and the “economy”. It unpacks some critical issues related to the methods and techniques used in the concrete implementation of participatory exercises such as, for example, the relation between the assigned tasks, the allowed forms of dialogue between the participants, the room for engagement with the issue(s) at stake and the broader understanding of processes these inputs were supposed to contribute to. Our analysis highlights a tension between the justificatory rationales for public engagement and its specific enactments. In these fast and optimized exercises, participants and their inputs become resources that need to be methodologically maximized and from which “value” may be extracted for instrumental use, i.e. innovation or policy-making. In this configuration in which, we argue, most participation experiments are stuck, the increasing involvement of publics in either policy-making or innovation will only be likely to produce low risk and high gain for powerful actors, who manage to take the best advantage of unpaid and uncritical labour from participants. Due attention (including self-reflexive critique) will be paid to alternative framings and critical insights, which were methodologically eliminated or ‘tamed’ to avoid threatening the design of the overall participatory exercise. By externalizing critique to favour unconditional compliance with imposed notions of the “greater good”, we scrutinize the risk for participation to become a mere space of experimentation for the sake of innovation and economic growth. Furthermore, we argue that critical scholarly work should help to move beyond this particular division of labour and responsibilities between the spheres of science, society and the state in order to avoid re-enacting traditional conceptions of the policy-making process and innovation pathways. [less ▲]

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See detailNational PESS report : Belgium
Cloes, Marc ULg; Mouton, Alexandre ULg

Conference (2016, June 29)

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See detailCitizen science in the nuclear field: An exploration of its potential in governing nuclear incidents, accidents, and post-disaster situations
Van Oudheusden, Michiel ULg; Turcanu, Catrinel; Van Hoyweghen, Ine et al

Conference (2016, June 28)

Citizen science (CS) is a form of science developed and enacted by citizens, typically with citizen volunteers collecting and/or analyzing various kinds of data. As CS serves public purposes (e.g ... [more ▼]

Citizen science (CS) is a form of science developed and enacted by citizens, typically with citizen volunteers collecting and/or analyzing various kinds of data. As CS serves public purposes (e.g. educational goals) and emanates within democratic and participatory cultures (e.g. the open science movement), it potentially broadens scientific research and facilitates public participation in science policy. Whereas the role of CS is well documented in fields such as amateur astronomy, biohacking, video gaming, etc., there is a dearth of research about the role of CS in the nuclear field. Yet, following the 2011 Fukushima Daiichi nuclear disaster, CS has demonstrably contributed to filling knowledge and information gaps, as citizens in the affected areas monitor radioactivity in the environment and communicate about environmental risks (e.g. Citizens’ Radioactivity Monitoring Project). In this process, citizen scientists have voiced ardent criticism of government and industry, as these institutes are seen to deliberately inhibit open knowledge sharing. Taking these insights as an entry point, this paper probes the potential of CS in the governance of nuclear incidents/accidents, emergency situations, and in post-disaster recovery. Drawing on past and present CS initiatives connected to nuclear incidents and accidents in Japan, the USA, Canada, and the UK, it conceptualizes the social spaces in which CS emerges; ascertains which knowledge, information and decision-making challenges CS addresses; and determines which collective lessons can be drawn to ensure more legitimate and socially robust nuclear governance. Particular attention is given to the role governments, industries, and established scientists can, and should, assume as potential facilitators, patrons, or challengers of a more collective, open approach to disaster preparedness and response. The latter category comprises social scientists, who in Japan have been criticized for “disengaging” with CS practice, thereby limiting opportunities for contextual learning about disasters and even hampering post-trauma disaster recovery. The paper engages with the following conference themes: The future role of publics in processes of government/governance; Empowering publics in new innovation processes. [less ▲]

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See detailA Selective and Highly Sensitive MIR Photoacuostic Sensor for Trace Gas Monitoring
Lassen, M; Lamar, L; Balslev-Harder, D et al

Conference (2016, June 28)

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See detailAnalysis of the temporal dynamics of suspended sediment fluxes using discrete sampling and continuous turbidity measurements in the Meuse and Scheldt watersheds (Wallonia, Belgium)
Van Campenhout, Jean ULg

Conference (2016, June 27)

Soil erosion may be apprehended at different scales and different time intervals in order to quantify the transport of suspended sediment at the outlet of large watersheds. In the Walloon region, several ... [more ▼]

Soil erosion may be apprehended at different scales and different time intervals in order to quantify the transport of suspended sediment at the outlet of large watersheds. In the Walloon region, several projects were conducted to estimate the erosion rates in watersheds ranging from 16 to 2900 km². Both discrete sampling methods (allowing the coverage of a large area through field campaigns during major floods or moderate hydrological events) and continuous turbidity measurements devices (studying a small number of locations with a small sampling interval and a wide range of sampled flow rates) were tested in these projects. At the region scale (Figure 1), the mean annual sediment erosion rate reaches several hundreds of tons per square kilometre and per year in the loess belt (Senne, Dyle and Gette watersheds) with a huge sensibility to extreme hydrological events while the mean annual sediment transport value reaches 20 t.km-2.yr-1 in Lorraine, 34 t.km-2.yr-1 in Ardenne and 69 t.km-2.yr-1 in Entre-Vesdre-et-Meuse. The aims of our researches are 1) the determination of the effect of the sampling frequency on the annual sediment transport rate estimation ; 2) the definition of the prerequisites to perform efficient turbidity measurements in rivers with high suspended load concentrations ; 3) the identification of the sources of errors due to the interpolation methods through a comparison of several methods proposed in the literature allowing the quantification of long-term erosion rates using a small number of discrete samples ; 4) the observation and explanation of clockwise and anti-clockwise hysteresis loops in relationship with the sequence of floods occurring in large watersheds and 5) the highlighting of the regional differentiation in the erosion rates, particle size and proportion of organic matter in the suspended load samples due to spatial variations of the soil substrate and the land cover characteristics. [less ▲]

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See detailMonitoring the ionosphere using new GNSS
Warnant, René ULg; Deprez, Cécile ULg; Wautelet, Gilles ULg et al

Conference (2016, June 27)

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See detailPhysical education and leisure: What’s the link?
Cloes, Marc ULg

Conference (2016, June 27)

All around the world, practitioners and researchers point out that people are becoming less and less physically active and adopt more and more sedentary behaviours. Such changes in the Human lifestyle ... [more ▼]

All around the world, practitioners and researchers point out that people are becoming less and less physically active and adopt more and more sedentary behaviours. Such changes in the Human lifestyle could have dramatic consequences as pointed out by the ‘Designed to move’ movement (Morris, 2013). To fight against that irresistible evolution, the need of a multisectorial approach is illustrated by the complexity of the socio-ecological model (Sallis et al., 2006). It underlines the large array of variables that play in the physical activity that someone is able to integrate into his/her life. Nevertheless, school has been identified as one major pillar of the promotion of an active lifestyle (van Sluijs et al., 2007). According to the knowledge and specific competences that they acquire during their studies, physical education (PE) teachers are considered as the potential cornerstones of such action (Tappe & Burgeson, 2004). While it was traditionally focused on the development of the youth’s physical, motor, and social competences of the students, since two decades, PE is increasingly more associated to the preparation of physically educated citizens. It means that what the students learn during their PE lessons should be useful outside the school and for a lifelong term. This concept is become a determining pedagogical principle: the physical literacy (Whitehead, 2013). In parallel, PE teachers are now requested to play a role on the health of their students despite if few evidence confirm that they can be successful in influencing the future behaviours of the children/adolescents to who they teach (Green, 2014). New pedagogical approaches are proposed nowadays in order to increase the effectiveness of the PE teachers’ intervention. This is linked to another pedagogical principle: accountability. Leisure activities enter progressively in the PE curriculum. Students benefit of more experiences that they could operate in their community. This requires more partnerships between school and leisure actors in order to implement original projects. Students must learn to become autonomous and smart decision makers able to identify the way to integrate PA in their leisure. [less ▲]

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See detailQuantification of nitrogen stress on winter wheat by multispectral vision based on reflectance measurements and textural descriptors
Marlier, Guillaume ULg; Gritten, Fanny; Fraipont, Guillaume ULg et al

Conference (2016, June 27)

Hand-held sensors (SPAD meter, N-Tester, …) are used for detecting the leaves nitrogen concentration (Nc) on the basis of an optical detection of the chlorophyll concentration. These devices are active ... [more ▼]

Hand-held sensors (SPAD meter, N-Tester, …) are used for detecting the leaves nitrogen concentration (Nc) on the basis of an optical detection of the chlorophyll concentration. These devices are active sensors: an internal radiation source emits light and transmission through a leaf is measured in the red (650 nm) and in the near-infrared (920 nm) spectral regions. These devices present several drawbacks. The nitrogen concentration is gained by an indirect way through the chlorophyll concentration and the leaves have to be fixed in a defined position for the measurements. These drawbacks could be overcome by an imaging device that measures the canopy reflectance. In this context, the objective of the paper is to analyse the potential of different image parameters for estimating nitrogen concentration. The tests were carried out on parcels submitted to total nitrogen inputs of 180 kg N.ha-1 but with different fertilization modalities. Reference Nc measurements were obtained by the Kjeldahl method and a Hydro N-Tester (Yara). The developed imaging system comprised a CMos camera and a set of 22 interference filters ranging from 450 to 950 nm mounted on a wheel steered by a stepper motor. The image acquisition and the motor rotation were controlled by a program written in C++. The crop was imaged vertically at one meter height. The raw images presented 1280x1024 pixels covering an area of approximately 0.5x0.4 m and were recorded with a 12-bit luminance resolution. To deal with the natural irradiance variability of the scene, a white reference was used and the integration time was automatically adjusted for each image. The image treatment included the segmentation of Photosynthetically Active Leaves (PAL) by using Bayes theorem and the computation of the mean PAL reflectance after correction of background and illumination fluctuations. Nc was estimated on the basis of the 22 filters by Partial Least Square (PLS) method and by four filters selected by Best Subset Selection (BSS). In comparison with the Kjeldahl method, the estimation of Nc by the Hydro N-Tester, the PLS and the BSS (filters 600-80, 950-100, 650-40 and 450-80 nm) gave determination coefficient and standard error respectively equal to of 0.53, 0.29 %; 0.67, 0.21%; 0.56 and 0.25%. This indicated that the full multi-spectral approach gave significantly better Nc estimation than a portable device and suggested that a camera equipped with four filters would give similar results. In addition to these promising results, the Nc measurement were correlated to leaf area measurements and textural descriptors. For this purpose, image analysis based on Grey Level Co-occurrence Matrix (GLCM), Fourier transform and spatial autocorrelation were performed to characterize the nitrogen state of the crop. [less ▲]

Detailed reference viewed: 27 (2 ULg)
See detailStrain induced vortex core switching in planar magnetostrictive nanostructures
Ostler, Thomas ULg

Conference (2016, June 26)

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Peer Reviewed
See detailPeri-implant soft tissue integration
LAMBERT, France ULg

Conference (2016, June 25)

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Peer Reviewed
See detailEmerging Hybridities under Networked Agribusiness in Argentina
Delvenne, Pierre ULg

Conference (2016, June 24)

Science and Technology Studies (STS) are paying greater attention to the interactions between new technologies and politico-economic orders. Dynamics of promises and expectations with regard to ... [more ▼]

Science and Technology Studies (STS) are paying greater attention to the interactions between new technologies and politico-economic orders. Dynamics of promises and expectations with regard to technological developments, and their uptake, play a major role in shaping political-economic policies, institutional practices and wider societal mutations. Informed by the theoretical perspective of co-production (Jasanoff 2004), this paper addresses the political economy of GM soy agriculture in Argentina as both epistemic and social orders. We engage ‘micro’ perspectives looking at situated social experiments with farmers and their interrelations with ‘macro’ phenomena such as capital-labour relations and forms of ‘neoliberalism’. We find that the emerging hybridities in present time’s Argentina are caught between the promissory futures of agroindustrial innovation and the historical, political and material conditions of agricultural production that give rise to these presents in the first place. Looking at three of such hybridities (the blurring of boundaries between modern/national, agriculture/industry and leasing/ownership), we highlight the ways in which elements of political-economic structures and human agency got bound up with technoscientific advances (Jasanoff 2015). Our contribution reveals the importance of the concept of ‘network’ to make sense of the dominant logic of agribusiness and it amounts to ‘rugged’ approach to networks with due attention to the complex topographies of circulating power and morality. [less ▲]

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See detailMarijan Molé à l'aube du nouveau comparatisme indo-iranien
Swennen, Philippe ULg

Conference (2016, June 24)

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See detailD'inventions en réinventions, le circuit de l'ipséité sartrien
Recchia, Fabio ULg

Conference (2016, June 24)

D'où provient la théorie sartrienne du "circuit de l'ipséité" qui apparait dans "L'Être et le Néant" ? Voici l'énoncé de la problématique sur laquelle notre communication souhaite faire la lumière à ... [more ▼]

D'où provient la théorie sartrienne du "circuit de l'ipséité" qui apparait dans "L'Être et le Néant" ? Voici l'énoncé de la problématique sur laquelle notre communication souhaite faire la lumière à partir d'un travail d'histoire de la philosophie. De manière plus précise, l'objectif de cette communication est de retracer le processus de maturation intellectuel qui conduisit Sartre à élaborer une théorie du circuit de l'ipséité. Nous réexaminerions ainsi la réception de Heidegger en France et l'influence de Bergson sur Sartre. Plus profondément, nous réinterrogerons le rapport de la philosophie sartrienne à l'anthropologie de Marcel Mauss. En effet, la critique historique du concept sartrien d'ipséité dévoilera que cette notion enveloppe une problématique abondamment discutée par l'École durkheimienne de sociologie : celle de l'intériorisation des déterminations sociales, dont l'extériorisation constitue l'individualité. [less ▲]

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See detail« Comment le réel a déjoué mes plans » : de quelques romans contemporains sur l’emprise par le récit
Claisse, Frédéric ULg; Huppe, Justine ULg

Conference (2016, June 23)

L’un des mérites paradoxaux des pratiques de storytelling, que C. Salmon a contribué à faire connaître au public francophone, réside dans le crédit dont bénéficie aujourd’hui l’idée de pouvoir du récit ... [more ▼]

L’un des mérites paradoxaux des pratiques de storytelling, que C. Salmon a contribué à faire connaître au public francophone, réside dans le crédit dont bénéficie aujourd’hui l’idée de pouvoir du récit. Cette idée place les producteurs littéraires dans une position ambivalente : perçu, d’un côté, comme une menace à leur autonomie et une atteinte au capital fictionnel dont ils sont les dépositaires légitimes, cet « art de raconter des histoires » est aussi une arme à détourner dans une entreprise de guérilla contre-narrative, voire un moyen pour la littérature de reconquérir ses pouvoirs premiers. Dans cette logique d’affrontement, on s’est cependant peu soucié, au fond, de ce que les fictions littéraires elles-mêmes avaient à dire sur le sujet : s’il est vrai que le récit est une prise sur le monde et un moyen d’emprise sur autrui, comment prennent-elles en charge ces situations ? La diffusion tant des pratiques de storytelling que de leur dénonciation ne pouvait rester sans effet sur la production littéraire. Or, le pouvoir du récit est aujourd’hui un thème régulièrement frayé par les romanciers, dans une série de textes qui présentent des convergences remarquables du point de vue des situations qu’ils décrivent. Dans Un Roman russe (2007), Emmanuel Carrère voit sa vie bouleversée pour avoir publié un récit érotique adressé à la femme qu’il aimait, décrivant les réactions de celle-ci à la lecture de son texte lors d’un voyage en train programmé par le narrateur. La même tentation démiurgique de (re)construction de la réalité par le récit habite le héros du triptyque d’Antoine Bello (Les Falsificateurs 2007 ; Les Éclaireurs 2009 ; Les Producteurs 2015), recruté par une organisation secrète, le Consortium de Falsification de la Réalité, pour laquelle il récrit littéralement l’histoire en falsifiant des archives sur la base de scénarios qui finiront par échapper à leurs créateurs, déclenchant une crise de conscience lorsque le héros découvre qu’Al-Qaïda est en réalité le produit d’une saga scénaristique qui a mal tourné. Dans La Revanche de Kevin (2015), Iegor Gran fait preuve de la même cruauté à l’égard de son protagoniste : pour dénoncer les faux-semblants du monde littéraire, Kevin H. fait lui-même œuvre d'imposture, et finit piégé par ses propres mystifications. Karoo de Steve Tesich (1998), devenu depuis sa traduction française en 2012 un véritable phénomène littéraire, participe des mêmes ressorts narratifs : écrivain raté, incapable de s’enivrer comme de montrer son affection à son fils, Saul « Doc » Karoo parachève sa propre destruction en appliquant à son existence les mêmes recettes qu’il inflige aux mauvais scénarios que Hollywood lui demande de récrire. Dans chacun de ces textes, le protagoniste peut faire siens les mots de Carrère au sujet de son récit censé « faire effraction dans le réel »: « le réel a déjoué mes plans ». Avec leurs personnages-scénaristes, mauvais démiurges châtiés par un réel plus résistant que leurs tentatives de le scripter, ces romans (d)énoncent cette modalité narrative du pouvoir que Citton appelle scénarisation, ou capacité d’agencer le comportement d’autrui à travers l’acte de narration. Mais il s’agit d’un savoir immanent à ces romans, une connaissance de la fiction sur elle-même, relevant de sa fonction cognitive. Récits conscients de l’emprise du récit, ils engagent une autre forme de réflexivité que celle des romans que la critique anglo-saxonne qualifie de « postmodernes », qui mettaient en scène leur propre fonctionnement romanesque : assumant pleinement leur statut fictionnel, ils ne jouent de la frontière entre réalité et fiction que pour mieux conforter l’idée que la réalité, bien que médiée et construite par les récits, « déborde » sans cesse. S'ils ne s'opposent pas frontalement au « Nouvel Ordre narratif », ces romans thématisent les effets perlocutoires des récits, mais surtout leur insuffisance face à la force de rappel du réel. Notre communication analysera ces dispositifs fictionnels d’un point de vue formel et socio-pragmatique. [less ▲]

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See detailResponse to droughts and heat waves of the productivity of natural and agricultural ecosystems in Europe within ISI-MIP2 historical simulations
François, Louis ULg; Henrot, Alexandra-Jane ULg; Dury, Marie ULg et al

Conference (2016, June 23)

According to the projections of climate models, extreme events such as droughts and heat waves are expected to become more frequent and more severe in the future. Such events are known to severely impact ... [more ▼]

According to the projections of climate models, extreme events such as droughts and heat waves are expected to become more frequent and more severe in the future. Such events are known to severely impact the productivity of both natural and agricultural ecosystems, and hence to affect ecosystem services such as crop yield and ecosystem carbon sequestration potential. Dynamic vegetation models are conventional tools to evaluate the productivity and carbon sequestration of ecosystems and their response to climate change. However, how far are these models able to correctly represent the sensitivity of ecosystems to droughts and heat waves? How do the responses of natural and agricultural ecosystems compare to each other, in terms of drought-induced changes in productivity and carbon sequestration? In this contribution, we use ISI-MIP2 model historical simulations from the biome sector. Eight dynamic vegetation models have participated in the biome sector intercomparison of ISI-MIP2: CARAIB, DLEM, JULES, LPJ-GUESS, LPJml, ORCHIDEE, VEGAS and VISIT. We focus the analysis on well-marked droughts or heat waves that occured in Europe after 1970, such as the 1976, 2003 and 2010 events. For most recent studied events, the model results are compared to the response observed at several eddy covariance sites in Europe, and, at a lager scale, to the drops in crop productivities reported in national statistics or to the drought impacts retrieved from satellite data (Terra MODIS instrument). [less ▲]

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See detailPublic Education Expenditures, Growth and Income Inequality
Artige, Lionel ULg; Cavenaile, Laurent

Conference (2016, June 23)

Detailed reference viewed: 42 (2 ULg)
Peer Reviewed
See detailSoft tissue handling
LAMBERT, France ULg

Conference (2016, June 23)

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See detailImpact of fire on resilience of tropical dry forests: miombo in Lubumbashi (Democratic Republic of Congo)
Hick, Aurélie ULg

Conference (2016, June 23)

Dry tropical forests are widespread in continental Africa where they account for 70-80% of forested area. Miombo is a dry forest characterized by the dominance of trees in the genera Brachystegia ... [more ▼]

Dry tropical forests are widespread in continental Africa where they account for 70-80% of forested area. Miombo is a dry forest characterized by the dominance of trees in the genera Brachystegia, Julbernardia and Isoberlinia. Dry-season fires are a characteristic feature of these forests. Fire is not a frequent natural disturbance but they originate from anthropic. The impact of fire on forest species depends on the intensity and timing in relation to plant phenology. Due to urban pressure, more than 85% of woodland forests were converted to savannahs given several degree of forest degradation in the landscape. After a disturbance, tropical forest ecosystem can return to a trajectory close to the original ecosystem. The time it takes for this ecosystem recover to its predisturbance ecological condition is termed resilience. Loss of resilience can trigger a shift to another ecological state with ecosystems that are different in species and/or that are different in their functional and structural aspects. The broad goal of our study was to examine impact of fire on resilience of miombo after human disturbances. Mosaic of the MODIS 500m burned area product from 2002 to 2012 were used to calculate return frequency of fires around Lubumbashi. Five degrees of miombo degradation have been established : no degraded forest/little disturbed (level 1), moderately degraded forest (level 2), degraded forest (level 3), severely degraded forest (level 4) et deforested (level 5). For each degree of degradation, 9 circular plots (18 m radius, 0.1ha) were established, excepted for level 4 where 8 plots were laid. Within each circular plot, all woody individuals >= 2 cm diameter at breast height (DBH) were tagged, measured (height and diameter) and identified. Tree seedlings < 2 cm DBH and of height > 20cm were also sampled and identified. Herbaceous biomass was measured. Floristic composition in level 4 corresponded to fire-tolerant species. In other degree of forest degradation, most abundant species in mature trees consisted to tolerant or semi-tolerant species. Floristic composition of regeneration in most degraded degree consisted to a mixte of miombo species and fire-tolerant species. Fire has an impact on resilience of miombo after human degradation. Level 4 corresponded to a typical floristic community of a chipya habitat, where all woody species are fire tolerant. Fire can lead degraded miombo toward an alternative stable degraded states. [less ▲]

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See detailPoétique auctoriale et écriture collaborative
Saint-Amand, Denis ULg

Conference (2016, June 23)

Detailed reference viewed: 7 (0 ULg)
See detailAnatomie chirurgicale du plancher Pelvien et du rétropéritoine chez la femme
Bonnet, Pierre ULg

Conference (2016, June 22)

Leçon introductive reprenant les notions anatomiques essentielles à maîtriser lors de l'approche chirurgicale du pelvis et du rétropéritoine chez la femme. Approche constructive par la réalisation ... [more ▼]

Leçon introductive reprenant les notions anatomiques essentielles à maîtriser lors de l'approche chirurgicale du pelvis et du rétropéritoine chez la femme. Approche constructive par la réalisation extemporanée de schémas projetés. [less ▲]

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See detailThe role of autobiographical knowledge in episodic future thinking
D'Argembeau, Arnaud ULg

Conference (2016, June 22)

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See detailUsing phytostabilisation as a way to conserve threatened endemic species from the Southeastern D.R. Congo
Boisson, Sylvain ULg; Le Stradic, Soizig ULg; Seleck, Maxime ULg et al

Conference (2016, June 22)

Metalliferous outcrops of the southeastern Democratic Republic of Congo are recognized as some of the largest copper-cobalt deposits of the world. They support unique vegetation with around 600 ... [more ▼]

Metalliferous outcrops of the southeastern Democratic Republic of Congo are recognized as some of the largest copper-cobalt deposits of the world. They support unique vegetation with around 600 metallophyte species including rare and endemic species. Since 1900s, the exploitation of the Cu-Co outcrops in D.R. Congo has considerably increased, impacting environment and putting public health at risk. Phytostabilisation is a suitable technology to decrease the bioavailability of heavy metals in highly polluted soils. This technic has been successfully implemented in the vicinity of Lubumbashi with the grass Microchloa altera. The long term maintenance of such technic requires a good understanding of the interspecific relationship like competition and facilitation. This study aims to test the success of establishment of four herbaceous species from the southeastern DRC presenting conservation priority and to assess the potential role of M. altera as nurse plant in this context. Two annual species and two perennial species were sown in experimental design with soil amendments crossed with vegetation cover. The emergence, the growth and the survival were followed during the vegetation season and the resprout was measured for perennial species. M. altera had a distinct effect on the emergence and the survival of the annual and perennial species but affected negatively the growth of individuals for all species. [less ▲]

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See detailRéinventer son enseignement : Pourquoi ? Comment ?
Poumay, Marianne ULg

Conference (2016, June 21)

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See detailCryopreservation of cyanobacteria in the BCCM/ULC collection: experimental set-up of protocols
Crahay, Charlotte ULg; Renard, Marine ULg; Day, John G et al

Conference (2016, June 21)

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See detailDesign criteria and experimental performance - Extended end-plate
Demonceau, Jean-François ULg

Conference (2016, June 21)

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See detailPlace of customary rights mapping initiatives in conservation policies
Vermeulen, Cédric ULg; Karsenty, Alain

Conference (2016, June 20)

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See detailCdk1 is a critical mediator of ischemic/hypoxic neuronal death
Vandenbosch, Renaud ULg

Conference (2016, June 20)

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See detailInfluence of frugivore taxa on the generation of plant recruitment foci and on the composition of plant recruits’ communities
Trolliet, Franck ULg; Forget, Pierre-Michel; Doucet, Jean-Louis ULg et al

Conference (2016, June 20)

Frugivores can disperse seeds in a spatially contagious pattern and generate recruitment foci (e.g. under fruiting trees). This process is increasingly explored to understand the influence of frugivores ... [more ▼]

Frugivores can disperse seeds in a spatially contagious pattern and generate recruitment foci (e.g. under fruiting trees). This process is increasingly explored to understand the influence of frugivores on the spatial organization of plant communities, and can also serve as a method to efficiently monitor the consequences of animal extirpation. However, there is limited evidence contrasting the influence of different frugivores taxa on the creation of recruitment foci under fruiting trees, and, similarly, on the overall composition of plant communities. Here, we aimed (i) to compare the role of hornbills and primates in creating recruitment foci, and (ii) to investigate how the presence of hornbills, primates and elephants influence the overall composition of plant recruit’s community in an anthropized forest-savanna mosaic in DR Congo. We firstly compared the community of recruits (0.5-2 m high) in 25-m² plots below hornbill-dispersed trees (Staudtia kamerunensis, N=32), primate-dispersed trees (Dialium spp., N=26), and in control plots located below other tree species (N= 4900 m²). Secondly, we considered all plots to compare the community of recruits in five sites characterized by contrasted levels of hunting and housing different seed disperser communities. Our preliminary results indicate (i) communities of recruits below hornbill-dispersed trees are significantly more dense and richer than in control plots, unlike these below primate-dispersed trees. Also, (ii) recruits in sites less affected by hunting, housing more large frugivores, including elephants, tend to belong to species with longer seeds. We conclude that hornbills generate recruitment foci under fruiting trees, which can serve as an efficient tool to monitor the ecological consequences of their extirpation. Moreover, we discuss the potential influence of the different studied frugivore taxa and the risk of their extirpation from afro-tropical forests on the composition of plant recruits’ community. [less ▲]

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See detailStorytelling in Videogames: From “Narrative” Towards “Fictional Universe”
Barnabé, Fanny ULg

Conference (2016, June 18)

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See detailMonitoring partnership networks- A graph theory approach
Faraz, Alireza ULg; Treiblmaier, Horst; Gerschberger, Markus

Conference (2016, June 17)

Recently, companies are forming strong relationships with their strategic suppliers and customers in order to maximize their profit in the global market. Such a partnership or strategic alliance is based ... [more ▼]

Recently, companies are forming strong relationships with their strategic suppliers and customers in order to maximize their profit in the global market. Such a partnership or strategic alliance is based on the mutual needs of both parties. A partnership network is formed by different strategic firms (e.g., suppliers, manufacturers, distributors, retailers) who intend to establish strong relationships together but without losing their ownership, power and control on the firm. For example, if supplier X has a strong relationship with customer Y and Y has a strong relationship with supplier Z, then X, Y and Z can form a partnership network with three nodes (X, Y and Z) and two edges (X ->Y and Z->Y). In this paper, we develop a statistical methods to study the normal behaviour of partnership networks. We furthermore develop a methodology that will help diagnose the nature of identified unusual network behavior. [less ▲]

Detailed reference viewed: 66 (1 ULg)
See detailPharmaceutical applications of supercritical fluids
Evrard, Brigitte ULg

Conference (2016, June 16)

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See detailInstitutional Pedagogies on the Edge between Politics and Therapy
Wustefeld, Sophie ULg; Janvier, Antoine ULg

Conference (2016, June 16)

Detailed reference viewed: 39 (2 ULg)
See detailUtilisation des matériaux céramiques en dentisterie esthétique
MAINJOT, Amélie ULg

Conference (2016, June 16)

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See detailSleep deprivation affects brain global cortical responsivenes
Gaggioni, Giulia ULg; Chellappa, S; Ly, J et al

Conference (2016, June 15)

Detailed reference viewed: 29 (5 ULg)
See detailIntroduction
Crucifix, Benoît ULg; Rommens, Aarnoud ULg; Dozo, Björn-Olav ULg

Conference (2016, June 15)

Detailed reference viewed: 16 (4 ULg)
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See detailCogelled xerogel catalysts for applications in gazeous phase
Lambert, Stéphanie ULg

Conference (2016, June 15)

Detailed reference viewed: 8 (2 ULg)
See detailLong-term care social insurance. How to avoid big losses?
Klimaviciute, Justina ULg; Pestieau, Pierre ULg

Conference (2016, June 13)

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See detailTenure choice and the tax treatment of mortgage loans in Belgium
Xhignesse, Guillaume ULg

Conference (2016, June 11)

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See detailImplementing new technologies in PE : The arduous path of a group of teachers
Cloes, Marc ULg; Renier, Damien

Conference (2016, June 11)

Nowadays, adolescents are totally integrated into the digital generation. Tablets, smartphones, and other apps belong to their normal life while most of their teachers sometimes try yet to discover what a ... [more ▼]

Nowadays, adolescents are totally integrated into the digital generation. Tablets, smartphones, and other apps belong to their normal life while most of their teachers sometimes try yet to discover what a computer is. In physical education, several authors showed that new tools can be used during practical lessons in a way to improve the learning environment and motivation of the students. As the videotape recorder in the past, current technologies represent resources that have to be adapted to the teaching strategies and not considered as miraculous tools that will solve all problems. On the other hand, one has to consider that youth are particularly attracted by digital tools that offers a growing range of possibilities to stimulate students’ critical thinking, autonomy, and involvement. This study aimed to help a group of PE teachers to use new technologies in their classes. Considering that his colleagues and he (grades 10-12) were not effective in using new technologies, one PE teacher from a secondary school invited us to propose a series of activities in order to let them identifying a way to take benefit from available ICTs. An interactive process has been implemented in order to put the teachers in the center of their development. A four steps approach was designed: (1) identification of the perceived benefits of ICTs and of the available tools, selection of one objective and one tool (4 teachers/5); (2) organization of a focus group to identify a practical way to use the selected tool (2/3); (3) preparation of a model lesson (3/3); follow up after 6 months (3/3). For several reasons, even if interesting projects of lessons were developed, they did not have been implemented. The study underlines the difficulties that PE teachers can meet when trying to innovate. [less ▲]

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See detail“Dare to save a life at school”: implementation of a basic life support cycle in the PE curriculum
Mouton, Alexandre ULg; Laurent, Charlotte; Collin, Manon ULg et al

Conference (2016, June 10)

Introduction In Europe, about 400,000 people have a sudden cardiac arrest every year, with a survival rate of 5-10% (ERC, 2015). Bystander cardiopulmonary resuscitation (CPR) could increase this survival ... [more ▼]

Introduction In Europe, about 400,000 people have a sudden cardiac arrest every year, with a survival rate of 5-10% (ERC, 2015). Bystander cardiopulmonary resuscitation (CPR) could increase this survival rate by 2-3 times. Unfortunately, less than 20% of the general population is able to perform it effectively (Plant & Taylor, 2013). Besides, most of the public facilities are now equipped with automated external defibrillators (AEDs). In a physical literacy perspective (Whitehead, 2013), PE teachers are ideally placed to teach basic life support (BLS) to their students (Colquhoun, 2012). Methods In this pilot study, a female PE teacher was trained to a BLS cycle adapted to the PE curriculum. The BLS cycle, including 6 sessions of PE, was developed in a participatory approach by a team of BLS specialists, PE teacher educators and by the PE teacher herself. During this BLS cycle, students learned the CPR & AED protocols, taught by different teaching styles (practice, reciprocal, self-check) with hands-on application on training manikin and AED. A process analysis was performed from the video recording of the sessions and from satisfactory questionnaires. Students’ knowledge of the BLS protocol was assessed by a 14 open-ended questionnaire at baseline (T0) and after the intervention (T1). Practical application of the BLS protocol was assessed on a manikin measuring CPR performance at T1. Results and conclusions The BLS program was taught to two classes of high school female students (n=52), aged 17.1 ± 0.3 years. At T0, if students were mostly aware of the emergency number (71.4%), very few were able to localise the chest compression (14.3%) and AEDs’ electrodes (2%) areas. Most of them did not feel able to perform BLS (89.8%) and would agree to learn it during PE lessons (97.9%). Results at T1 are expected to highlight improvements of the theoretical and practical BLS’ competencies of the students. [less ▲]

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See detailL'intelligence stratégique : protection mon patrimoine, une question d'éducation
Leroy, Patrick ULg

Conference (2016, June 10)

https://www.eventbrite.com/e/billets-2-heures-30-offertes-pour-se-defendre-contre-les-menaces-de-cyber-securite-25801871091

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See detailLe groupe ACME : logiques de l'interstice (disciplinaire, nationale, méthodologique)
Crucifix, Benoît ULg; Dozo, Björn-Olav ULg; Meesters, Gert

Conference (2016, June 10)

Interdisciplinarité : si la recherche en bande dessinée s'est, dans une certaine mesure, constituée en discipline (associations disciplinaires, congrès et conférences, revues scientifiques, etc.), son ... [more ▼]

Interdisciplinarité : si la recherche en bande dessinée s'est, dans une certaine mesure, constituée en discipline (associations disciplinaires, congrès et conférences, revues scientifiques, etc.), son inscription au cœur des institutions reste tributaire de l'insertion de ces recherches au sein d'autres départements et, donc, d'autres disciplines. Le cas d'ACME offre un exemple de structuration au sein de l'institution universitaire qui s'exécute autour d'un travail de rassemblement collectif interdisciplinaire, chaque membre apportant les outils méthodologiques de sa formation et de sa discipline : ACME est ainsi autant ancré dans les études littéraires que dans l'histoire de l'art ou les études en communication. Les résultats de ces recherches, comme le livre L'Association : une utopie esthétique et éditoriale1, exhibent une convergence de regards, jetant différents perspectives sur un objet commun. Le travail interdisciplinaire se situe donc à deux niveaux : à la fois dans le regard porté par le chercheur sur un objet qui n'« appartient » pas traditionnellement à la discipline à laquelle il ou elle est formé-e (transdisciplinarité), et dans les résultats concrets de publication qui unifient différentes approches disciplinaires (pluridisciplinarité). Objets d'étude et échelles d'analyse : pour permettre cette convergence de regards disciplinaires, ACME s'est rassemblé autour d'objets d'étude permettant ce genre de rassemblement, d'où le choix d'objets éditoriaux et collectifs (L'Association, Spirou) ou de questions transversales (la dissidence, l'abstraction). Ces études conjuguent plusieurs perspectives et échelles d'analyses : des propositions systémiques et englobantes aux analyses les plus fines d'œuvres singulières. Entre distant reading et close reading, le groupe ACME, par le biais de son interdisciplinarité, se livre peut-être à une forme d'entre-deux, une « mid-level reading », de la bande dessinée qui rend compte des multiples interactions entre macro- et micro-niveau. Dimension transnationale : en lien avec l'interdisciplinarité, le groupe ACME a aussi mis en avant le dialogue des langues et des traditions critiques, qui résulte en partie de l'ancrage de certains de ses membres dans des départements de langues étrangères (anglais, néerlandais). Ce choix s'est de plus concrétisé dans le bilinguisme opté pour la collection « ACME » aux Presses universitaires de Liège. Alors que les recherches en bande dessinée dans le monde francophone et anglo-saxon se déroulent encore trop souvent en parallèle et/ou dans une ignorance respective, ACME se joint ainsi à d'autres initiatives d'établir un dialogue constructif entre ces deux traditions critiques. [less ▲]

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See detailDe Pierre Nothomb à Charles-Ferdinand Nothomb, l’influence d’un père
Lanneau, Catherine ULg

Conference (2016, June 10)

Si l'on souhaite comprendre et analyser le parcours politique de Charles-Ferdinand Nothomb (président du PSC, député, sénateur, ministre, vice-Premier Ministre, ministre d'Etat), il semble difficile de ... [more ▼]

Si l'on souhaite comprendre et analyser le parcours politique de Charles-Ferdinand Nothomb (président du PSC, député, sénateur, ministre, vice-Premier Ministre, ministre d'Etat), il semble difficile de faire abstraction de la dynamique familiale et de ne pas évoquer, en préambule, la figure du père, l’avocat, écrivain et homme politique catholique Pierre Nothomb. Les documents disponibles (AGR, Archives et Musée de la Littérature, UCL), la plupart de la main de Pierre Nothomb, permettent de mieux décrypter les rapports à la fois étroits et compliqués entre les deux hommes et le regard porté par Pierre sur les débuts de la carrière politique de son fils (1958-1966). [less ▲]

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See detailApport des nuages de points LiDAR et photogrammétriques pour le monitoring de 12000 km de cours d’eau en Wallonie (Belgique)
Michez, Adrien ULg; Piégay, Hervé; Desteucq, Olivier et al

Conference (2016, June 10)

Sous l’impulsion de son administration, la Wallonie a entamé un processus de révision complète des modalités de la gestion des cours d’eau, notamment à travers le projet des Programmes d’Actions sur les ... [more ▼]

Sous l’impulsion de son administration, la Wallonie a entamé un processus de révision complète des modalités de la gestion des cours d’eau, notamment à travers le projet des Programmes d’Actions sur les Rivières par une approche Intégrée et Sectorisée (PARIS). Les PARIS ont pour but l'intégration dans le temps et dans l’espace de l’ensemble des mesures de gestion spécifiques au linéaire des cours d'eau en fonction d'enjeux prioritaires identifiés à l’échelle d’unités de gestion homogènes, les secteurs (6185 secteurs de gestion de 2 km de long en moyenne). La mise en place et le suivi de ces plans de gestion impliquent de facto le développement d'outils de suivi efficaces, permettant d'établir les états des lieux pour la planification des actes de gestion et à terme, d'évaluer l'efficacité desdits plans de gestion. Ces opérations doivent se réaliser sur près de 12000 km de cours d’eau et de bandes riveraines associées sur une base objective et commune à l’ensemble des gestionnaires de cours d’eau. Des données fines de télédétection étant disponibles et acquises de manière régulière par l’administration wallonne, des solutions dérivées de ces sources de données permettront de répondre partiellement aux besoins réguliers en information des plans de gestion PARIS pour un budget réduit. Pour atteindre cet objectif, un protocole a été établi sur base de nuages points LiDAR (densité ≈ 1 point « sol » / m²) complétés par des nuages de points photogrammétriques dérivés des images individuelles des couvertures ortho du territoire. Ces données ont été utilisées afin de caractériser la structure spatiale des bandes riveraines associées à l’ensemble du réseau hydrographique wallon (> 12 000 km) à travers 6 paramètres. Ces paramètres peuvent être d’ordre hydromorphologique (hauteur des berges, largeur et sinuosité du lit mineur), ou décrire la structure des forêts riveraines (hauteur moyenne, continuité longitudinale et ombrage du lit mineur). Une évaluation des patrons spatiaux de ces différents paramètres en lien avec les caractéristiques des territoires wallons (occupation du sol, régions naturelles) peut être ainsi réalisée. Différentes formes de visualisations de l’information peuvent ainsi appuyer le processus décisionnel des gestionnaires, de l’échelle locale (secteurs d’une masse d’eau DCE - Directive ‘Cadre-Eau’) à l’échelle régionale (354 masse d’eau DCE). L’acquisition des données sur l’ensemble du territoire wallon (15000 km²) a été sous-traitée à différentes compagnies privées, pour des montants approximatifs de 17 et 10 € / km² respectivement pour la donnée LiDAR et ortho. Une plateforme en ligne a récemment été lancée par la Direction des Cours d’Eau Non-Navigables du Service Public de Wallonie (DCENN) en tant que support du projet de plans de gestion PARIS. Les paramètres extraits dans le cadre de ce projet seront prochainement intégrés au sein de cette plateforme permettant leur visualisation à différentes échelles ainsi que l’encodage des actions par les gestionnaires. [less ▲]

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See detailInactivité, procrastination, apathie et manque d'objectifs quotidiens : Un même concept ?
Wagener, Aurélie ULg; Carré, Arnaud; Bouvard, Martine et al

Conference (2016, June 10)

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See detailThe Liège Game Lab: presentation of a young research center on videogames
Dozo, Björn-Olav ULg; Barnabé, Fanny ULg; Delbouille, Julie ULg et al

Conference (2016, June 09)

The main goals of the paper are, first, to present the Liège Game Lab, the different studies carried out in Liège on videogames and their specificities and, secondly, question our own position in the ... [more ▼]

The main goals of the paper are, first, to present the Liège Game Lab, the different studies carried out in Liège on videogames and their specificities and, secondly, question our own position in the research field. To do so, we will situate ourselves in relation to the main paradigms of game studies dominated in France by social sciences and in the world by English-speakers, with a particular attention to the domination’s concerns of a peripheral position. This paper will focus on presentation and discussion of the videogames’ study in a midsized French speaking University. The aim is, first and foremost, to question the domination’s issues related to a triple peripheral position: geographic, methodological and linguistic. - The University of Liège is indeed peripheral in Belgium, in comparison to the centrality, geographically speaking, of the Universities of Brussels and Leuven. - The main group working on videogames, in French speaking Belgium, is the LabJMV (the “Games and Virtual Worlds” Laboratory), where the anthropological and sociological perspectives are dominant, while in Liège we developed more a communicative and literary outlook. - The OMNSH (the main association about game studies in France), which could be our “natural” link to the field because of the sharing language, is also dominated by social sciences and separated by a political frontier which could be seen as a boundary. - The DIGRA (the Digital Games Research Association), at the opposite, is geographically close to us (given that they are present as a chapter in Flanders), but disconnected owing to the difference of language (they publish mainly in English, we publish mainly in French). Despite of this peripheral position and making of it a strategic observatory of the tendencies of game studies, an original research hub emerged in Liège for two years. We chose to work on objects and/or with methodological perspectives which diverge of mainstream game studies: amateur game making, videogame press, Belgian players’ uses and poetical perspective on gaming practices. Various contingencies brought together at the University of Liège several researchers working more or less directly on videogames: students’ demands to write master’s thesis on videogames, the rise of grants from funding agencies like FNRS to study this medium and the development of Digital Humanities in the University of Liège. It is time, now, to question ourselves about the situation of the game studies in the University of Liège, but also the place of this University in the international field of this discipline. In first approximation, we can postulate that this gathering of researchers generated a shared research process, whose specificities stem particularly from the triple peripheral position (geographic, methodological and linguistic) of the University of Liège in the game studies field – as explained earlier. However, we would like to discuss this hypothesis not only on our own,but publicly, in the context of an international conference. Consequently, with this paper, we aim to present our group questioning our shared position and, at the same time, to expose a comparison of our five perspectives on videogames in order to understand in what ways they match each other and in what ways they create fruitful opposition. Björn-Olav Dozo and Boris Krywicky are interested in French speaking videogame press with book history’s methods. Pierre-Yves Hurel examines amateur game design with sociological tools (the dominant methodology in French speaking game studies), but these are serving communication and political investigations. Fanny Barnabé studies the same kind of objects (players’ creative practices of “misappropriation”), but through a formal and poetic approach (she analyzes the works so produced and not the players’ activities). Julie Delbouille, at the opposite, adopted a sociological and quantitative methodology, but investigated a restricted category of gaming practices: the French speaking Belgian players. [less ▲]

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See detailTime and Space. An Introduction (with a special focus on Linguistics and Semantics)
Winand, Jean ULg; Chantrain, Gaëlle

Conference (2016, June 09)

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See detailQualitative characteristics of episodic future thinking
D'Argembeau, Arnaud ULg

Conference (2016, June 09)

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See detailTwo novel ways to impose free-slip boundary conditions in fluid-structure interaction problems using the Particle Finite Element Method
Cerquaglia, Marco Lucio ULg; Deliège, Geoffrey ULg; Boman, Romain ULg et al

Conference (2016, June 09)

As well known, the imposition of boundary conditions is, in many cases, the trickiest part in solving differential problems, both from a physical and numerical standpoint. This work focuses on the way ... [more ▼]

As well known, the imposition of boundary conditions is, in many cases, the trickiest part in solving differential problems, both from a physical and numerical standpoint. This work focuses on the way boundary conditions are accounted for in the solution of fluid-structure interaction problems using the Particle Finite Element Method (PFEM). In particular, the PFEM traditionally employs no-slip conditions on the fluid-solid interfaces. Our aim is twofold. On the one hand, we demonstrate that, in the framework of the PFEM, the no-slip hypothesis is too strong in some cases, leading to erroneous physical results, and that a free-slip condition is to be preferred instead; we therefore propose two novel ways to impose free-slip conditions, devoting special attention to generality, simplicity and robustness. On the other hand, we show how the use of free-slip boundary conditions can also be beneficial with regards to two major problems arising from the remeshing procedure employed by the PFEM: the violation of the mass conservation principle and the introduction of spurious pressure oscillations. [less ▲]

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See detailLes Poètes du réel
Saint-Amand, Denis ULg

Conference (2016, June 09)

Detailed reference viewed: 6 (0 ULg)