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See detailEffect of task demands on phonological acquisition : the acquisition of phonemes in French speaking children aged 30 to 53 months in four different contexts.
Maillart, Christelle ULg; Vaucel, Cécile; Macleod, Andrea

Poster (2014, June)

When children first begin to produce the phonemes of their language, their productions are characterized by a high degree of variability (e.g., Ferguson & Farwell, 1975) and are influenced by task demands ... [more ▼]

When children first begin to produce the phonemes of their language, their productions are characterized by a high degree of variability (e.g., Ferguson & Farwell, 1975) and are influenced by task demands (Khami, Catts, & Davis, 1984). As children’s phonological representations become more defined, their productions become more stable and less influenced by the task demands. Despite the clinical significance of phonological variability, there exists no normative data that can be used to objectively describe this variability in French. The goal of the present study was to describe variability and consistency among French-speaking children between the ages of 30 and 53 months, according to task demands. A total of 153 children participated in the present study and were equally distributed in four groups (aged 30-35, 36-41, 42-47, and 48-53 months). We created a picture identification task with 65 target words, which contained the consonants of French in word initial, medial and final position. The children were asked to produce these words in four different contexts : 1) picture naming ; 2) word repetition ; 3) sentence repetition ; 4) spontaneous language. Two measures of consistency were used. (1) A consonant level analysis that investigated the stability of phonological accuracy. (2) A word level analysis that investigated the consistency of productions across the four tasks. We predict that younger children will be more influenced by changes in task complexity than older children. [less ▲]

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See detailConcrete Surface Engineering for Cultural Heritage
Courard, Luc ULg

Scientific conference (2014, June)

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See detailMeandering flows in rectangular shallow reservoirs
Peltier, Yann ULg; Erpicum, Sébastien ULg; Dewals, Benjamin ULg

Report (2014)

During this research, previously unexplored meandering flows in free-surface rectangular shallow reservoirs were investigated theoretically, experimentally and numerically. For the first time, a complete ... [more ▼]

During this research, previously unexplored meandering flows in free-surface rectangular shallow reservoirs were investigated theoretically, experimentally and numerically. For the first time, a complete description of the hydrodynamics of the meandering flows was obtained from laboratory experiments. An innovative procedure for the characterisation of the physics of the flow was developed based on several techniques, including Large Scale Particle Image Velocimetry (LSPIV), Proper Orthogonal Decomposition (POD) and a new topology algorithm. This research provides new insights into these fascinating meandering flows, of high practical relevance in civil and environmental engineering. Six papers were written and, so far, five of them have been accepted for publication (two in international journals and three in peer-reviewed international conference proceedings). [less ▲]

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See detailLes eaux minérales et thermales de Chaudfontaine
Ruthy, Ingrid ULg; Cornet, Jean-Louis

in Dassargues, Alain; Walraevens, Kristine (Eds.) Watervoerende lagen & grondwater in België - Aquifères & eaux souterraines en Belgique (2014)

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See detailCalcaires et grès des bassins de la Vesdre et de la Gueule
Ruthy, Ingrid ULg; Biron, Jean-Paul; Dassargues, Alain ULg

in Dassargues, Alain; Walraevens, Kristine (Eds.) Watervoerende lagen & grondwater in België - Aquifères & eaux souterraines en Belgique (2014)

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See detailAquifères des formations du jurassique et du trias en Lorraine belge.
Debbaut, Vincent ULg; Bouezmarni, Mohamed ULg

in Dassargues, Alain; Walraevens, Kristine (Eds.) Watervoerende lagen & grondwater in België - Aquifères & eaux souterraines (2014)

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See detailQu'est-ce que l'entrepreneuriat social ? Origines et singularités
Dufays, Frédéric ULg

Article for general public (2014)

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See detailCalcaires et grès du Synclinorium de Dinant
Gesels, Julie ULg; Nogarède, Pierre; Hallet, Vincent et al

in Dassargues, Alain; Walraevens, Kristine (Eds.) Watervoerende lagen en grondwater in Belgïe - Aquifères et eaux souterraines en Belgique (2014)

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See detailSpatial optimization in perfusion bioreactors improves bone tissue-engineered construct quality attributes
Papantoniou, Ioannis; Guyot, Yann ULg; Sonnaert, Maarten et al

in Biotechnology and Bioengineering (2014)

Perfusion bioreactors have shown great promise for tissue engineering applications providing a homogeneous and consistent distribution of nutrients and flow-induced shear stresses throughout tissue ... [more ▼]

Perfusion bioreactors have shown great promise for tissue engineering applications providing a homogeneous and consistent distribution of nutrients and flow-induced shear stresses throughout tissue-engineered constructs. However, non uniform fluid-flow profiles found in the perfusion chamber entrance region have been shown to affect tissue-engineered construct quality characteristics during culture. In this study a whole perfusion and construct, three dimensional (3D) computational fluid dynamics approach was used in order to optimize a critical design parameter such as the location of the regular pore scaffolds within the perfusion bioreactor chamber. Computational studies were coupled to bioreactor experiments for a case-study flow rate. Two cases were compared in the first instance seeded scaffolds were positioned immediately after the perfusion chamber inlet while a second group was positioned at the computationally determined optimum distance were a steady state flow profile had been reached. Experimental data showed that scaffold location affected significantly cell content and neo-tissue distribution, as determined and quantified by contrast enhanced nanoCT, within the constructs both at 14 and 21 days of culture. However gene expression level of osteopontin and osteocalcin was not affected by the scaffold location. This study demonstrates that the bioreactor chamber environment, incorporating a scaffold and its location within it, affects the flow patterns within the pores throughout the scaffold requiring therefore dedicated optimization that can lead to bone tissue engineered constructs with improved quality attributes [less ▲]

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See detailDe Nadar à Dornac. Hexis corporelle et figuration photographique de l'écrivain
Durand, Pascal ULg

in COnTEXTES : Revue de Sociologie de la Littérature (2014), 14

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See detailRepresentations of Incident Reporting as a Collective Learning Process
Rossignol, Nicolas ULg; Turcanu, Catrinel

Conference (2014, June)

In the context of vulnerability analysis, it is now widely aknowledged that social factors should be taken into account, alongside technical ones. Depending on the particular approach adopted, these ... [more ▼]

In the context of vulnerability analysis, it is now widely aknowledged that social factors should be taken into account, alongside technical ones. Depending on the particular approach adopted, these social factors are considered to influence “coping capacities”, “adaptive capacities” or “resilience”. The ability of a socio-technical system to learn from past incidents and accidents seems to have a positive influence on its vulnerability, as it increases its capacity to adapt properly in case of future unwanted envents. To that regard, incident reporting systems are of first importance as they are supposed to constitute a collective memory of past incidents, to initiate a collective share of information and to foster collective learning and adapations. Yet, the theoretical assumptions about the ability of a reporting system to imply collective learning have still to be demonstrated. This paper proposes a methodology addressing this issue. To do so, we conduct a number of semi-structured interviews in a nuclear facility with various types of actors (managers, lab responsibles, technical workers), and in different risk contexts. In addition, participants are requested to produce a mental map of the reporting system they are concerned with. These inputs are then analyzed following a “cross-case analysis” procedure in order to identify patterns of actors' representations of the reporting system, and to link these patterns to potential learning processes fostered by the system. This constitutes the first step of an inductive research process aiming to identify and characterize the link between reporting systems and collective learning. In the next steps, the link between the identified patterns of representations and collective learning processes will be tested quantitatively. The final aim being to elaborate ways to improve Incident Reporting Systems to improve collective learning. [less ▲]

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See detailDe Europese Unie en Brazilië: eindelijk een (strategisch?) partnershap
Santander, Sébastian ULg

in Internationale Spectator (2014), 68(6), 40-44

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See detailSimple connectome inference from partial correlation statistics in calcium imaging
Sutera, Antonio ULg; Joly, Arnaud ULg; François-Lavet, Vincent ULg et al

in Proceedings of Connectomics 2014 (ECML 2014) (2014, June)

In this work, we propose a simple yet effective solution to the problem of connectome inference in calcium imaging data. The proposed algorithm consists of two steps. First, processing the raw signals to ... [more ▼]

In this work, we propose a simple yet effective solution to the problem of connectome inference in calcium imaging data. The proposed algorithm consists of two steps. First, processing the raw signals to detect neural peak activities. Second, inferring the degree of association between neurons from partial correlation statistics. This paper summarises the methodology that led us to win the Connectomics Challenge, proposes a simplified version of our method, and finally compares our results with respect to other inference methods. [less ▲]

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See detailDes noces du politique et de la prospective
Brunet, Sébastien ULg

in Guyot, Jean-Luc; Brunet, Sébastien (Eds.) Construire les futurs (2014)

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See detailConstruire les futurs
Guyot, Jean-Luc; Brunet, Sébastien ULg

Book published by Presses universitaires de Namur (2014)

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