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See detailIsolation and characterization of nanocelluloses from wheat straw and their application in agricultural water-saving materials
Liu, Qi ULiege

Doctoral thesis (2017)

Humans have been cultivating land for approximately 12,000 years. As such, most countries worldwide have considered crop waste as a global issue linked with environmental protection, economic development ... [more ▼]

Humans have been cultivating land for approximately 12,000 years. As such, most countries worldwide have considered crop waste as a global issue linked with environmental protection, economic development, and healthy living. Many varieties of straw are produced all over China in massive quantities (more than 900 million tons per year). Although banned by the government, stubble burning is widely applied by Chinese farmers as an easy and cheap way to remove stalks after harvests. However, this practice significantly contributes to China’s carbon dioxide emissions and health risks associated with the thick mists it produces. As a renewable biomass resource, straw can be used to make new marketable materials, but its full potential has yet to be realized. Thus, future studies should be directed toward the isolation and rational use of agricultural waste. In addition to the pollution caused by agricultural waste, water shortage, particularly in northern and northwestern China, severely hinders agricultural production. This region accounts for half of the total surface of China but has less than 20% of the total national available water resources. Despite the severity of the water shortage in this region, the efficiency of irrigation water use is only 40%. Many strategies have been applied to promote a water-saving agriculture. One such strategy is the use of water-saving materials, such as plastic mulching films and superabsorbent polymers. However, these two materials are non-biodegradable, and their mechanical properties are unsatisfactory. A systematic analysis of the literature revealed that agricultural waste is a cheap and promising source of raw materials that could be used to obtain cellulose and nanocelluloses. Nanocelluloses can be used for the industrial production of super-strong but lightweight nanocomposite materials. The first step involved the isolation of cellulose, cellulose nanocrystallines (CNCs), and cellulose nanofibers (CNFs) from wheat straw. First, four CNCs were isolated from four commercial microcrystalline celluloses (MCCs) through sulfuric acid hydrolysis. The effects of the characteristics of the MCC on the morphology, structure, and properties of the resulting CNCs were assessed. The results revealed that both particle size and dispersity influenced the isolated CNCs. Second, cellulose was isolated from wheat straw through a microwave-assisted chemical treatment process that reduced chemical use. The reaction conditions and promoting effect of microwave on the resulting fibers were investigated. The results indicated that temperature played the most important role in cellulose isolation, and that microwave can reduce either the reaction time or the chemical use during the microwave-assisted alkali hydrolysis process. High-purity (94%) CNFs were isolated from wheat straw through an environmentally friendly, multi-step treatment process that combined steam explosion, microwave-assisted hydrolysis, and microfluidization. Chemical identification and characterization were performed to study the effect of each treatment step and investigate the potential utilization of CNFs in nanocomposites. Chemical analysis showed that the cellulose content increased from 44.81% to 94.23%, whereas the hemicellulose and lignin contents significantly decreased from 33.41% and 8.75% to 5.54% and 1.68%, respectively. Long and loose 10–40 nm wide nanofiber bundles and an entangled network of cellulose fibers with an average individual diameter of 5.42 nm were observed during this eco-friendly process. In the last part of this study, nanocelluloses were introduced into superabsorbent polymers and mulching films used in agriculture to improve their performance. The effects of nanocelluloses on their structure, properties, and mechanical performance were investigated. First, superabsorbent polymers of acrylamide–acrylate copolymers and others with CNFs, CNCs, or MCC were synthesized. The swelling capacities in pure water and in various solutions, the capacities for repeated water absorption, the water-retaining capacities in soil, and the mechanical properties of the hydrogels were compared. The results revealed that the 3D structures of the acrylamide–acrylate–CNF and acrylamide–acrylate–CNC hydrogels were strengthened by the nanocellulose. These two polymers exhibited excellent capacities for repeated water absorption. By contrast, the biodegradable agricultural mulching film did not present satisfying mechanical and barrier properties as an alternative for ordinary polyethylene film. In this thesis, CNC was introduced into the film of poly (butyleneadipate-co-terephthalate) /polylactic acid composites. Poly(butyleneadipate-co-terephthalate)/polylactic acid/CNC films with various contents of CNC were prepared, characterized, and tested as for their properties. Compared with the film without CNC, poly (lactic acid) / poly (butylene-adipate-co-terephtalate)/3% CNC film showed an increased deformation by 188.80%. The barrier performance of the films increased with increasing CNC content. However, the tensile properties decreased when the CNC content exceeded 3%. Both the mechanical and barrier properties were promoted. These results highlighted that (i) wheat straw is a cellulose-rich natural resource of CNF and CNC; (ii) microwave can reduce either the reaction time or the chemical use during the cellulose-isolation process; (iii) high-purity CNF could be obtained through an environmentally friendly method; and (iv) nanocellulose could improve the mechanical properties of both superabsorbent polymers and mulching films, and enhance their performances in agricultural applications. In a broader perspective, microwave and other techniques should be further explored in the context of green isolation processes. Agricultural biomass natural fiber-based composites must be further investigated to maximize their applications. Approaches that could offer significant cost savings for the industrial production of nanocellulose and new nanocellulose-based materials should be developed further. We aim to promote the research interest for the isolation and application of agricultural-waste-based nanocellulose, which deserve further research and documentation. This thesis is only the beginning of a greater endeavor. [less ▲]

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See detailTrophic ecology of icefishes (Notothenioidei, Perciformes) in a context of climate change
Peignot, Quentin; Frederich, Bruno ULiege; Lepoint, Gilles ULiege et al

Poster (2017, November 23)

The Southern Ocean currently undergoes major environmental modifications related to climate change. When faced with environmental changes, all organisms are expected to have some intrinsic capacity to ... [more ▼]

The Southern Ocean currently undergoes major environmental modifications related to climate change. When faced with environmental changes, all organisms are expected to have some intrinsic capacity to adapt their ecological habits to their new life conditions. Currently, biological traits of many Antarctic species are still unknown and we need such information to assess their capacity to adapt to natural and anthropogenic perturbations. Notothenioidei (Perciformes), or icefishes, are endemic to the Southern Ocean and they are an important trophic component of these marine ecosystems. Here we used stable isotopes ratios of carbon (δ13C) and nitrogen (δ15N) of two well represented genera of icefishes (Trematomus and Lepidonotothen) sampled in 2002/2004 and/or in 2015/2016 to better understand their resources partitioning and the influence of environmental changes on their trophic ecology. Isotopic niches (which are a proxy of the realized ecological niches) were modeled using the SIBER (Stable Isotope Bayesian Ellipses in R) R-package. Our results revealed a great variation in isotopic compositions among icefishes, suggesting that they exploit a wide array of resources. The overlap between the isotopic niches of Trematomus and Lepidonotothen genera in 2002/2004 highlights a possible past competition for resources. Moreover, temporal evolution of niches suggests taxon-specific ecological plasticity in response to variation in environmental parameters and/or in prey availability. An increase in resources partitioning between the two genera was observed over the studied period. In the future, it would be interesting to use mixing models including isotopic composition of potential preys to identify possible changes in their trophic ecology. [less ▲]

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See detail« World of Chemistry » : Détournement de la plateforme d’apprentissage Blackboard learn pour gamifier des activités d’entrainement en chimie Générale
le Maire, Nathalie ULiege

Conference (2017, November 23)

Dans le champ éducatif, les jeux ont régulièrement fait l’objet de réflexions et d’expérimentations visant à en exploiter leur potentiel au service de la compréhension, la motivation, la créativité ... [more ▼]

Dans le champ éducatif, les jeux ont régulièrement fait l’objet de réflexions et d’expérimentations visant à en exploiter leur potentiel au service de la compréhension, la motivation, la créativité, l’esprit critique etc. des étudiants. Récemment la notion de gamification, définie comme l’application d’éléments ludiques à des contextes autres que le simple divertissement, a enrichi cette ligne de recherche sur le jeu. La présente communication relate la mise en place et l’évaluation du potentiel de « World of Chemistry », un parcours ludique composé de quatre mini-jeux de chimie disponible dans la plateforme d’apprentissage Blackboard Learn pour des étudiants de Bloc 1 bioingénieur. [less ▲]

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See detailMorphological diversification of the endemic Antarctic fishes Trematominae (Notothenioidei, Teleostei)
Frederich, Bruno ULiege; Heindler, Franz Maximilian; Christiansen, Henrik et al

Poster (2017, November 23)

Adaptive radiation involves the early, rapid ecological and morphological diversification of multiple lineages from a common ancestor into new, diverging adaptive zones. Regarding this definition with ... [more ▼]

Adaptive radiation involves the early, rapid ecological and morphological diversification of multiple lineages from a common ancestor into new, diverging adaptive zones. Regarding this definition with emphasis on the tempo of diversification, Antarctic notothenioids represent one of the very few examples of adaptive radiation in marine fishes. Time-calibrated phylogenies suggest that the diversification of most speciose notothenioid lineages occured between 20 and 15 Ma. The subfamily Trematominae is one of those diverse subclades showing a large range of ecological niches. In the present study, we aim to describe the evolutionary history of Trematomus species. By combining a consensus time-tree and a geometric morphometric dataset, we first illustrate their pattern of cephalic shape diversification in a phylomorphospace and we infer the morphology of their common ancestor. We also explore whether the cephalic shape data shows a phylogenetic signal, which is defined as the statistical dependence among species trait values due to their phylogenetic relatedness. The combination of phylogenetic signal test and exploration of the phylomorphospace allows us to assess whether Trematomus rapidly diverged in various adaptive zones as expected under a classic scenario of adaptive radiation. [less ▲]

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See detailEffects of fluid preservation on sea star stable isotope compositions: How useful can museum collections be for trophic ecology studies?
Le Bourg, Baptiste ULiege; Lepoint, Gilles ULiege; Michel, Loïc

Poster (2017, November 23)

Stable isotope analyses (SIA) of carbon (δ13C) and nitrogen (δ15N) are a common tool to investigate the trophic ecology of animals. After field sampling, animal tissues are usually preserved dried or ... [more ▼]

Stable isotope analyses (SIA) of carbon (δ13C) and nitrogen (δ15N) are a common tool to investigate the trophic ecology of animals. After field sampling, animal tissues are usually preserved dried or frozen before subsequent analysis. However, museum samples, or samples not initially collected for SIA are often fixed in preservative solutions. These preservation methods may alter stable isotope ratios in animal tissues, and those effects should be quantified. Here, we investigated long-term effects (one year) of four preservation methods (freezing, alcohol, formaldehyde, drying) on δ13C and δ15N values of sea stars. We show that only formaldehyde preservation significantly affects δ13C values. However, after being altered, the mean δ13C value remained stable over time, suggesting that a correction factor may be used regardless of preservation time. δ15N values change across time for all methods except freezing but this may be the result of a higher intra-individual variability of δ15N values. The influence of preservation methods on estimation of isotopic niches size (parameterised as standard ellipse area) was also investigated. Bayesian estimations of standard ellipse areas (SEAB) of preserved samples were not different from those of fresh samples except for the samples preserved 6 months in alcohol. These preliminary results suggest that samples stored during one year in preservative fluids may be used for SIA in order to investigate the trophic ecology of sea stars. Future results will also help to determine whether the findings can be generalised to sea stars preserved for a longer time, such as those in museum collections. [less ▲]

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See detailLa microscopie virtuelle
Pesesse, Laurence ULiege; Weatherspoon, Alodie ULiege; Defaweux, Valérie ULiege et al

Conference (2017, November 23)

La microscopie virtuelle fait partie intégrante des activités d'enseignement de l'Histologie et de l’Histopathologie Humaine et Animale que ce soit lors de travaux pratiques en présentiel, à distance ... [more ▼]

La microscopie virtuelle fait partie intégrante des activités d'enseignement de l'Histologie et de l’Histopathologie Humaine et Animale que ce soit lors de travaux pratiques en présentiel, à distance, dans l'animation d'un MOOC ou encore lors de cours théoriques ex-cathedra. L'interface web de Cytomine permet de donner la parole aux lames de tissus digitalisés en y associant un langage, qu'il soit descriptif sous forme d'annotations, didactique par le biais d'explications liant structure et fonctions, interrogatif en y associant des questions ou sous la forme d'un dialogue grâce au partage possible avec d'autres utilisateurs. Différents scénarios d'apprentissage élaborés par la Faculté de Médecine et de Médecine Vétérinaire vous exposeront les atouts de la microscopie virtuelle et comment celle-ci est devenue un outil incontournable de travail actif et collaboratif. [less ▲]

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See detailServices and dis-services of collective gardens in urban areas: a soil perspective
Colinet, Gilles ULiege; Liénard, Amandine ULiege; Schram, Dieneke et al

Conference (2017, November 23)

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See detailThe feeding system impacts relationships between calving interval and economic results of dairy farms
Dalcq, Anne-Catherine ULiege; Beckers, Yves ULiege; Mayeres, Patrick et al

in Animal (2017)

The calving interval (CI) can potentially impact the economic results of dairy farms. This study highlighted the most profitable CI and innovated by describing this optimum as a function of the feeding ... [more ▼]

The calving interval (CI) can potentially impact the economic results of dairy farms. This study highlighted the most profitable CI and innovated by describing this optimum as a function of the feeding system of the farm. On-farm data were used to represent real farm conditions. A total of 1832 accounts of farms recorded from 2007 to 2014 provided economic, technical and feeding information per herd and per year. A multiple correspondence analysis created four feeding groups: extensive, low intensive, intensive and very intensive herds. The gross margin and some of its components were corrected to account for the effect of factors external to the farm, such as the market, biological status, etc. Then the corrected gross margin (cGMc) and its components were modelled by CI parameters in each feeding system by use of GLM. The relationship between cGMc and the proportion of cows with CI<380 days in each feeding group showed that keeping most of the cows in the herd with CI near to 1 year was not profitable for most farms (for the very intensive farms there was no effect of the proportion). Moreover, a low proportion of cows (0% to 20%) with a near-to-1-year CI was not profitable for the extensive and low intensive farms. Extending the proportion of cows with CI beyond 459 days until 635 days (i.e. data limitation) caused no significant economic loss for the extensive and low intensive farms, but was not profitable for the intensive and very intensive farms. Variations of the milk and feeding components explained mainly these significant differences of gross margin. A link between the feeding system and persistency, perceptible in the milk production and CI shown by the herd, could explain the different relationships observed between the extent of CI and the economic results in the feeding groups. This herd-level study tended to show different economic optima of CI as a function of the feeding system. A cow-level study would specify these tendencies to give CI objectives to dairy breeders as a function of their farm characteristics. [less ▲]

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See detailAdductor mandibulae muscle and lower jaw morphology: an approach to determine bite strategies in piranhas and relatives (Serrasalmidae, Characiformes, Teleostei)
Huby, Alessia ULiege; Parmentier, Eric ULiege

Poster (2017, November 23)

Serrasalmidae (98 species) is a large monophyletic group of South American freshwater fishes. They have different dietary preferences ranging from the predominantly herbivorous or frugivorous pacus to the ... [more ▼]

Serrasalmidae (98 species) is a large monophyletic group of South American freshwater fishes. They have different dietary preferences ranging from the predominantly herbivorous or frugivorous pacus to the omnivorous or primarily carnivorous piranhas. Flesh-eating piranhas are supposed to have proportionally the most powerful bite forces among vertebrates but it has never been compared with those of plant, fruit and seed-eating species. Moreover, the bite strategy has never been explored in this family: is there a difference between carnivorous piranhas and herbivorous relatives? In the present study, we used the adductor mandibulae muscle and the lower jaw as models to answer this questioning through morphometric methods. We found that flesh-eating piranhas have a more developed adductor mandibulae muscle than seed-eating species which in turn have a larger jaw muscle than plant-eating species. The dorsomedial section of the jaw muscle (pars malaris) is the most developed in carnivorous species whereas it is the ventrolateral section (pars rictalis) in herbivorous species. We also distinguish two characteristic shapes of lower jaw that are related to dietary preferences. Results suggest different bite strategies: flesh-eating species possess a "scissor-like" way of feeding whereas the plant, fruit and seed-eating species show "vise-like" system. [less ▲]

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See detailAllocution de clôture
Van Cleynenbreugel, Pieter ULiege

Speech/Talk (2017)

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See detailInvestigating the effects of hydrodynamics and mixing on mass transfer through the free-surface in stirred tank bioreactors
de Lamotte, Anne ULiege; Delafosse, Angélique ULiege; Calvo, Sébastien ULiege et al

in Chemical Engineering Science (2017), 172

In stirred-tank bioreactors, flow structures of various length and time scales are implied in scalar transport phenomena, such as gas species transfer through the liquid free-surface and their ... [more ▼]

In stirred-tank bioreactors, flow structures of various length and time scales are implied in scalar transport phenomena, such as gas species transfer through the liquid free-surface and their homogenization in the bulk. A proper understanding of the underlying mechanisms, i.e. hydrodynamics, mixing and mass transfer, and of their interactions is required to design and develop reliable and efficient production-scale bioprocesses. The objective of the present work is to experimentally investigate the coupling between gas-liquid mass transfer of oxygen with mixing efficiency and circulation patterns inside an arbitrarily chosen stirred-tank configuration aerated through the liquid free-surface, a baffled 20 L-vessel agitated by two Rushton turbines. Based on global parameter values, the most appropriate rotating speed, N = 300 rpm, is selected in order to further study local hydrodynamic quantities using Particle Image Velocimetry (PIV), as well as mixing and mass transfer dynamics using Planar Laser-Induced Fluorescence (PLIF). The results obtained with these local experimental methods are analyzed in detail. Their averages are first successfully compared to global data. Statistical analysis of their spatial distributions show that large-scale flow patterns significantly influence mass transfer through the free-surface of the stirred tank. Even if global measurements show that global characteristic times for mixing and mass transfer differ by two orders of magnitude, local experimental characterization shows persistent vertical gradients of dissolved gas concentrations. So the dissolved gas concentration is not as perfectly uniform as one might expect. [less ▲]

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See detailRencontre entre Good Lives Model et Justice Restaurative
Devillers, Bérengère ULiege

Conference (2017, November 23)

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See detailIntégration de la validation dans le concept AQbD
Hubert, Cédric ULiege; Lebrun, Pierre ULiege; Boulanger, Bruno ULiege et al

Scientific conference (2017, November 23)

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See detailTroubles phonologiques chez des enfants présentant des troubles développementaux du langage
Maillart, Christelle ULiege

Scientific conference (2017, November 23)

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See detailAgroforestry in temperate regions, where does the water go? Electrical resitivity tomography as a tool to help us find out.
Maloteau, Sophie; Coussement, Tom; Pardon, Paul et al

Poster (2017, November 23)

Recently, agroforestry systems have been recognized to provide an opportunity for “ecological intensification”, thereby increasing yield outcome while simultaneously minimizing negative impacts on the ... [more ▼]

Recently, agroforestry systems have been recognized to provide an opportunity for “ecological intensification”, thereby increasing yield outcome while simultaneously minimizing negative impacts on the environment. Mixtures of trees and crops have the potential to capture more resources of light, water and nutrients than monocultures of trees or crops (Cannell et al. 1996). Nevertheless, few studies are available focusing on the impact of trees on soil moisture dynamics in cropped soil in temperate regions. In this study, we monitored the soil water dynamics in a corn field bordered by poplar trees in Ieper, Belgium using Electrical resistivity tomography (ERT) and classical soil tension sensors (Watermark) during the entire growing season of 2016 (May-September). We installed four ERT transects of 30 m long with an electrode spacing of 50cm. Three transects were placed in a part of the field bordered by trees and one reference transect was located in a part of the field without trees. Next to each transect, Watermark sensors were installed to estimate the soil water tension. The data allow us to monitor the influence of the trees on the soil water depletion by the crop. We quantified the effect in space and time of mature poplar trees on soil moisture dynamics in an agricultural field sown with maize during one growing season and confirmed the ability of electrical resistivity tomography to study tree-crop interactions for water under field conditions and we delimited an area of influence of the tree on the crop using a segmented linear regression technique. With our study, we show the potential of ERT to quantify tree-crop-soil interactions for water in agroforestry systems. [less ▲]

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See detailA forward model for electrical conduction in soil-root continuum: a virtual rhizotron study
Rao, Sathyanarayan; Meunier, Félicien; Ehosioke, Solomon ULiege et al

Poster (2017, November 23)

Electrical Resistivity Tomography monitoring of soil-root system water fluxes have received growing interest in the past decades. Some studies suggest that roots can be more electrically conductive than ... [more ▼]

Electrical Resistivity Tomography monitoring of soil-root system water fluxes have received growing interest in the past decades. Some studies suggest that roots can be more electrically conductive than soil. We suggest that ERT data taken in agricultural fields is impacted by plant roots and might contaminate estimates of soil water content based on bare soil petrophysical relations. To understand how do roots impact electrical current flow and thus ERT data, a numerical electrical model was coupled with a mechanistic maize-soil water flow model. All the maize roots with a radius larger than 0.05 cm were explicitly accounted for in the finite element mesh and associated to their specific electrical properties. Root growth and water uptake processes continuously affected the EC contrast between soil and root. We demonstrated that high contrats between root and soil EC lead to errors in the estimation of soil water content, which could be disminished by using an appropriate biopedophysical correction term. The effective EC (bulk properties) of the medium computed using simulated plate electrodes at rhizotron boundaries reveal directional anisotropy induced by root processes and is more pronounced in sand medium when compared to loam. The percentage change in bulk EC due to change in direction (𝐸𝐸𝐸𝐸ℎ𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜 .vs. 𝐸𝐸𝐸𝐸𝑣𝑣𝑣𝑣𝑣 𝑣 𝑣𝑣𝑣𝑣𝑣 𝑣 ) starts at ~30 % in sand and ~3 % in loam when root is young and increases upto ~500% in sand and ~20% in loam at day 22 when root is three weeks old. Directions in which there is more anisotropy contains more information on the root processes and hence they can be used as prior information for ERT injection scheme to retrieve better information. [less ▲]

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See detailExploitation de la plateforme e-Campus pour l’apprentissage de la Chimie de Première année pour les étudiants non acquis à la matière
Kune, Christopher ULiege; Quinton, Loïc ULiege

Conference (2017, November 23)

De nos jours, les étudiants sont de plus en plus ouverts à l’e-Learning. La plateforme e-Campus, de par sa facilité à rendre disponible des contenus et des activés en ligne, permet à tout corps enseignant ... [more ▼]

De nos jours, les étudiants sont de plus en plus ouverts à l’e-Learning. La plateforme e-Campus, de par sa facilité à rendre disponible des contenus et des activés en ligne, permet à tout corps enseignant de répondre à cette demande grandissante. Pour les étudiants en première année de kinésithérapie et sciences de la motricité, l’e-Learning est devenu un complément incontournable du cours de Chimie. Lors de cette présentation, nous aborderons le développement de ce projet E-Learning pour le cours de chimie, de l’idée à la réalisation, en découvrant les outils offerts par la plateforme E-Campus, tels les questionnaires en ligne, les forums, les médiathèques… [less ▲]

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See detailHETICE, seize ans de formation continuée des enseignants du supérieur : qu’en est-il du rôle de la personne-relais ?
Rappe, Jonathan ULiege; Denis, Brigitte ULiege

Conference (2017, November 23)

HETICE (Haute École et Technologies de l'Information et de la Communication pour l'Enseignement) est un dispositif de formation continue des enseignants de Haute École à l'usage pédagogique des TIC au ... [more ▼]

HETICE (Haute École et Technologies de l'Information et de la Communication pour l'Enseignement) est un dispositif de formation continue des enseignants de Haute École à l'usage pédagogique des TIC au sens large. Il se caractérise par la mise en place d'actions de formation et le développement d'un réseau d'enseignants, notamment via le soutien d'enseignants désignés "personnes-relais HETICE" au sein de chaque Haute École. Seize ans après l’établissement de la fonction de personne-ressource pédagogique, puis de personne-relais, il est temps de faire le point. Qu’en est-il, actuellement, du(des) rôle(s) effectif(s) de ces personnes-relais (PR) ? Comment se représentent-elles ce(s) rôle(s) ? Comment est(sont)-il(s) perçu(s) par les autres acteurs du projet ? Qu’en est-il de leur articulation avec ceux des autres acteurs ? Ces différentes questions constituent l’objet de cette contribution. Ainsi, nous confronterons les représentations et pratiques déclarées des personnes-relais actuelles (au nombre de 21 pour 11 HE) quant à leur(s) rôle(s) à celles d’autres acteurs (autres PR, collègues, directions et équipe de l’ULiège). Des perspectives sont dégagées en fonction des résultats et des objectifs poursuivis par le projet HETICE. [less ▲]

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See detailComment la « gamification » peut augmenter la réussite et la motivation des étudiants dans le cadre d’un cours de physique?
Marique, Pierre-Xavier ULiege; Hoebeke, Maryse ULiege

Scientific conference (2017, November 23)

A l'entame de leurs études, les étudiants inscrits en première année de médecine ne sont pas friands de physique. Pourtant, ce cours fait bien partie de leur cursus, et à raison. Pour les aider à aborder ... [more ▼]

A l'entame de leurs études, les étudiants inscrits en première année de médecine ne sont pas friands de physique. Pourtant, ce cours fait bien partie de leur cursus, et à raison. Pour les aider à aborder les bases physiques de la médecine et les préparer à l’examen organisé sous forme de QCM, nous avons développé un outil en ligne, appelé « simulateur d’examens ». Grâce à celui-ci, l’étudiant peut générer des tests formatifs constitué de questions d’épreuves certificatives des années antérieures. En réussissant différents tests, il gagne alors des médailles (badges). L’introduction de cette dimension de gamification nous a permis d’observer une augmentation de la réussite à l’examen et de la motivation des étudiants vis-à-vis du cours. [less ▲]

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