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See detailLes pathologies intestinales chirurgicales chez le cheval: activation neutrophilique, pronostic et complications postopératoires
Salciccia, Alexandra ULiege

Doctoral thesis (2017)

Postoperative complications after colic surgery in horses remain of major concern as they are associated with non-negligible mortality rates. Many of these postoperative complications have an important ... [more ▼]

Postoperative complications after colic surgery in horses remain of major concern as they are associated with non-negligible mortality rates. Many of these postoperative complications have an important inflammatory component involving leukocytes, and particularly neutrophils, which represent the majority of granulocytes. Activated neutrophils produce reactive oxygen species and release inflammatory mediators and oxidative and proteolytic enzymes such as myeloperoxidase and elastase, which in turn will exacerbate pre-existing tissue lesions. This cascade of events will lead to the systemic inflammatory response syndrome. In an effort to improve the understanding of the systemic inflammatory reaction that follows colic surgery in horses, we described the time-trends of blood leukocytes and granulocytes counts and plasma myeloperoxidase and elastase concentrations during the perioperative period. Globally, survivor horses presented curves of blood leukocytes and granulocytes counts evolution lower and curve of evolution of plasma myeloperoxidase concentrations higher than those of non-survivor horses. These findings confirm the major influence of the inflammatory reaction on patient survival and allowed us to determine a prognostic value of blood leukocytes counts, a parameter easily available and routinely used in the aftercare of horses undergoing a colic surgery. We showed that in our population, non-survivor horses were more likely to have at least one blood leukocyte count inferior or equal to 3.9×10³/mm³ between 28 and 60 hours after surgery than survivor horses. Our following research, based on clinical studies, were directly or indirectly related to 2 common postoperative complications: incisional complications and ileus. In a study evaluating more than 600 exploratory laparotomies for colic, we showed that short laparotomy incisions, partially closed with interrupted vertical mattress sutures on the linea alba, and protected and supported by an abdominal bandage applied before the recovery from anaesthesia were associated with relatively low incisional complication and infection rates. These rates were respectively 9,52% and 5,31% after a single laparotomy and respectively 33,33% and 26,67% after repeat laparotomy. Bandage related complications occurred rarely. Risk factors of an incisional complication or infection in our population were prolonged anaesthesia duration, performing an enterotomy and postoperative intravenous lidocaine administration. The knowledge of these elements will certainly contribute to reduce the incidence of these complications in the future. Transabdominal ultrasonography of the small intestine is frequently used to diagnose and monitor a postoperative ileus. In order to improve the interpretation of ultrasonographic images after surgery, we determined the influence of general anaesthesia on these images. Using a protocol including horses anaesthetised for non-abdominal surgeries, we showed that although anaesthesia induces a physiologic ileus of short duration, expressed by a decreased of borborygmi without abdominal discomfort, its effects on the ultrasonographic images of the small intestine consisted mainly of a temporary increase (less than 12 hours) of the jejunal visualisation and diameter (with most of the observations remaining in the normal range) without thickening of the intestinal wall. Therefore the effects of general anaesthesia on ultrasonographic images of the small intestine can be distinguished from those of a pathological process. Our last study, including sound horses revealed that lidocaine, a molecule frequently used for treatment of postoperative ileus, may have a mild hypotensive effect on the arterial blood pressure and a mild prokinetic effect on the duodenum. Nevertheless, these results, original about the hypotensive effect, and controverted about the prokinetic effect, need to be confirmed in longer and larger studies. Our work has allowed us to bring some new elements leading to the improvement of our understanding of inflammatory processes related to the neutrophilic activation during the perioperative period of colic horses. Despite the improvement of methods of prevention, detection and treatment of postoperative complications, prognoses after this type of surgery still need to be enhanced. It seems that a huge work remains to be done to precisely determine the effects of various treatments, such as lidocaine. Numerous perspectives appear in the search of new molecules aiming to reduce the inflammatory reaction and to prevent or treat postoperative complications of horses undergoing colic surgery. [less ▲]

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See detailIn vitro antiplasmodial and cytotoxic activities of sesquiterpene lactones from Vernonia fimbrillifera Less. (Asteraceae)
Bordignon, Annélise ULiege; Frederich, Michel ULiege; Ledoux, Allison ULiege et al

in Natural Product Research (2017)

According to the World Health Organization (WHO 2016 WHO. 2016. World Malaria report 2016 [Internet]; [cited 2016 Dec 20]. Available from: https://www.who.int/malaria/publications/world-malaria-report ... [more ▼]

According to the World Health Organization (WHO 2016 WHO. 2016. World Malaria report 2016 [Internet]; [cited 2016 Dec 20]. Available from: https://www.who.int/malaria/publications/world-malaria-report-2016/report/en/ [Google Scholar] ), malaria caused at least 429 000 deaths globally in 2015. Among these, 70% were children under the age of five and 99% were due to the parasite species Plasmodium falciparum. The fight against this major public health problem is threatened by the rapid emergence and spread of parasite strains resistant towards available approved treatments. Urgent efforts are therefore needed to identify new antimalarial drugs. As such, our research groups decided to study Reunion Island as a potential source for the discovery of new antiplasmodial metabolites. This natural patrimony has been identified as a biodiversity hotspot due to its numerous endemic species and its preserved ecosystems (Myers et al. 2000 Myers N, Mittermeier RA, Mittermeier CG, DaFonesca GAB, Kent J. 2000. Biodiversity hotspots for conservation priorities. Nature. 403:853–858.10.1038/35002501 [CrossRef], [PubMed], [Web of Science ®], [Google Scholar] ). The National Botanical Conservatory of the Mascarenes indicates that Vernonia fimbrillifera Less. is an endemic species from Reunion Island, locally named ‘bois de source’, which grows in the humid tropical forest (Lavergne and Véra 1989 Lavergne R, Véra R. 1989. Etude ethnobotanique des plantes utilisées dans la pharmacopée traditionnelle à La Réunion [Ethnobotanical study of plants used in the traditional pharmacopoeia of Reunion Island]. Paris: Agence de coopération culturelle et technique. [Google Scholar] ). To the best of our knowledge, neither phytochemical nor pharmacological works have been performed up to now on V. fimbrillifera. This study isolated and determined the structure of three antiplasmodial sesquiterpene lactones. Compounds were additionally tested in vitro for their cytotoxicity and their selectivity indices were established. [less ▲]

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See detailDépolitisation et politisation de la formation des majorités communales en Belgique
Grandjean, Geoffrey ULiege

Conference (2017, July 10)

Since 2001, the competences for the organization and election of local authorities in Belgium have been regionalized. The Regions – federated powers – are now competent to take law on these matters. The ... [more ▼]

Since 2001, the competences for the organization and election of local authorities in Belgium have been regionalized. The Regions – federated powers – are now competent to take law on these matters. The three Belgian Regions (Brussels-Capital, Flemish and Walloon) have adopted different law which aims to partially depoliticize the naming of mayors and aldermen. The legal rules constrain the political game concerning the composition of the communal colleges and the colleges of mayors and aldermen. The representatives take into account these legal rules during political negotiations for forming a political majority. The dynamics of governance have therefore significantly changed within the municipalities since 2001 and have diverged between the three Regions. In order to illustrate the depoliticization of the naming process of the communal colleges and the colleges of mayors and aldermen and the reappropriation of legal constraints by the representatives, it is proposed to analyze the formation process of political majorities following the last communal elections in the three Regions. For each Region, two municipalities are chosen because of the specificities that arose during the negotiations, leading to the mobilization of multiple arguments (especially legal arguments) to justify the choice of certain coalition partners. This choice makes it possible to highlight the diverse processes of reappropriation of legal constraints by political actors at the local level. [less ▲]

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See detailTrematominae and Artedidraconinae: contrasted mitogenome evolution for two Antarctic radiations
Dettai, Agnes; Auvinet, Juliette; Frederich, Bruno ULiege et al

Conference (2017, July 10)

Cellular respiration has been widely studied in Antarctic teleost fishes because of their peculiar adaptations to an extreme environment. In parallel mitochondrial sequence markers have become highly ... [more ▼]

Cellular respiration has been widely studied in Antarctic teleost fishes because of their peculiar adaptations to an extreme environment. In parallel mitochondrial sequence markers have become highly popular for molecular systematics. However, there are few whole mitochondrial genome sequences published, and none available for some of the subfamilies. Here, we present two large mitogenome datasets including most species and multiple sequences for many species of two subfamilies, Trematominae and Artedidraconinae (Duhamel et al. 2014). These include two highly diverse but very different adaptative radiations, with contrasting divergence dates, morphological polymorphism, and habitat dominance. The sampling is based on a well identified, extensive collection resulting from the 2008 CEAMARC survey and the subsequent REVOLTA surveys in Terre Adélie (IPEV), already DNA barcoded and sequenced in previous studies. The mitogenome sequences for these two subfamilies differ in composition, gene order, and relative divergence of mitochondrial markers, with strong, taxon-specific biases like very high C contents in some regions. The gene order change provides a synapomorphy for the subfamily Trematominae and an interesting development in teleost mitogenomes. The complete Artedidraconinae mitogenomes provide a much higher amount of variable sites (approx*30), while previous sequence datasets were plagued by low informativeness (Lecointre et al. 2011). As already established on single mitochondrial genes, intraspecific variability is lower than interspecific variability within each subfamily, however interspecific variability in Artedidraconinae is lower or similar to intraspecific variability in Trematominae. This expanded dataset confirms the unusual evolution of the mitochondrial coded sequences involved in the cellular respiration in Antarctic Nototheniidae, as well as the usefulness of complete mitochondrial genomes for their systematics. The two level multiplexing (Timmermans et al. 2010) and next generation sequencing of long PCR amplicons (following Hinsinger et al. 2015) is efficient to obtain large mitogenomic datasets representative of both inter- and intraspecific variability, key to the understanding of mitochondrial evolution and a step closer to resolving the relationships among these taxa. [less ▲]

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See detailInfluence of environmental conditions on trophic niche partitioning among sea stars assemblages
Le Bourg, Baptiste ULiege; Blanchard, Alice; Danis, Bruno et al

Conference (2017, July 10)

The Southern Ocean undergoes intense and contrasted impacts linked to climate change. The Western Antarctic Peninsula is one of the most rapidly warming regions of the world (Meredith and King, 2005 ... [more ▼]

The Southern Ocean undergoes intense and contrasted impacts linked to climate change. The Western Antarctic Peninsula is one of the most rapidly warming regions of the world (Meredith and King, 2005), resulting in sharp sea ice cover decrease (Parkinson and Cavalieri, 2012). In contrast, surface temperature and sea ice cover remain stable in other regions such as the Weddell Sea. Sea stars (Echinodermata: Asteroidea) are a key group of the Southern Ocean benthos, thought to be quite resistant to seawater temperature changes (Peck et al., 2008). Other, more indirect environmental changes, might induce important shifts in food web structure and fluxes, that may affect sea stars trophic ecology. In this context, the aim of this study was to use stable isotopes ratios of C, N and S to study sea stars trophic ecology to characterise their trophic diversity and plasticity regarding food web changes. Sea stars were sampled during the austral summer in the South Georgia (sub-Antarctic) in 2011 and in the South Shetland (2006) and South Orkney Islands (2016), as well as in the Weddell Sea (2015-2016). Trophic diversity, i.e. differences of trophic ecology between sea star species, and variability, i.e. differences of trophic ecology between individuals of the same species, were investigated in each region by investigating isotopic dispersion and isotopic niche (proxy of the trophic niche) areas and overlap. Difference in niche width and overlap between the regions may be the result of different environmental conditions, including sea ice coverage and dynamics. For example, in the South Shetland, sea stars had small and poorly differentiated isotopic niches. This result indicate that they may exploit the same benthic communities relying on few common food sources such as organic matter released during sea ice melting (Isla et al., 2006) or sinking phytoplankton (Mincks et al., 2008). Whether this situation leads to competition or not depends on the resources availability. In contrast, isotopic niches were larger and better separated for sea stars from South Georgia. South Georgia is an oligotrophic environment with no sea ice (Korb et al., 2008). As available food items are more limited but, perhaps, more diversified, a higher trophic segregation may appear between species. Ultimately, this project will help delineating processes determining trophic ecology of Southern Ocean sea stars. This research was funded by the Belgian Federal Science Policy Office (BELSPO) in the framework of the vERSO and RECTO project (rectoversoprojects.be). [less ▲]

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See detailDimensions adaptatives des fonctionnements pervers et psychopathiques : une approche étho-phénoménologique
Englebert, Jérôme ULiege

Conference (2017, July 10)

Notre objectif est de discuter des diagnostics du fonctionnement psychologique pervers et de la personnalité psychopathique. Si les versions récentes du DSM (IV et 5) ignorent ces diagnostics, la pratique ... [more ▼]

Notre objectif est de discuter des diagnostics du fonctionnement psychologique pervers et de la personnalité psychopathique. Si les versions récentes du DSM (IV et 5) ignorent ces diagnostics, la pratique clinique suggère de conserver ces deux entités présentant une finesse psychopathologique plus grande et un pouvoir discriminatif plus important que la personnalité antisociale. Nous souhaitons interroger les dimensions intrinsèquement adaptatives de ces deux entités, mais aussi relever leurs différences sur le continuum de l’adaptation. Nous chercherons, en effet, à démontrer que le principe d'adaptation est une dimension centrale et commune aux deux entités, mais qui « se joue » de façons différentes pour chacune. Le pervers est hyper-adapté à son interlocuteur tout en présentant des moments paradoxaux d'inadaptation. Le psychopathe, avec sa faculté de chosification de l'alter ego et ses compétences émotionnelles paradoxales, présente une adaptation plus solitaire. Dans une perspective inspirée des paradigmes éthologique et phénoménologique, nous tenterons de cerner les différences essentielles entre ces deux modes d’être-au-monde. [less ▲]

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See detailNon-destructive investigation of hybrid of ferromagnet /(RE)BCO large grain bulks by flux extraction magnetometry and levitation force
Vanderbemden, Philippe ULiege; Philippe, Matthieu; Wera, Laurent ULiege et al

Conference (2017, July 10)

This work deals with bulk, large grain superconductors used as permanent magnet for rotating machines or levitation applications. It has recently been shown that the magnetic properties of bulk large ... [more ▼]

This work deals with bulk, large grain superconductors used as permanent magnet for rotating machines or levitation applications. It has recently been shown that the magnetic properties of bulk large grain superconductors can be improved easily by attaching a short section of a soft ferromagnetic material (F) to one of the faces of the bulk superconductor (S), thereby producing a hybrid F/S structure [1]. Here we investigate the contactless determination of the magnetic behavior of such structures using a recently constructed bespoke magnetometer based on the flux extraction technique [2]. This device allows magnetic moments as large as 1 Am² to be measured at 77 K and accommodates large bulk samples up to 20 mm diameter. This extends significantly the accessible measurement range of “off-the shelf” magnetometers. Unlike techniques based on recording the distribution of flux at the surface of the sample, the measured signal is representative of the superconducting currents flowing across the entire volume of the sample. In the present work we examine the properties of permanently magnetized superconductors and hybrid structures, and measure the irreversible demagnetization of these structures when they are subjected to magnetic field cycles that are not parallel to their magnetization. We also investigate the levitation behavior of hybrid structures subjected to the non-uniform field of a permanent magnet or a combination of permanent magnets used as guideway for levitation applications, and compare the results to those obtained with a bulk superconductor alone. This abstract is for the special session on bulk superconductivity. References: [1] Egan R. et al., Rev. Sci. Instrum. 86 (2015) 025107 [2] M. P. Philippe et al., Supercond. Sci. Technol. 28 (2015) 095008 Acknowledgments: We greatly acknowledge Nippon Steel & Sumitomo Metal Corporation for providing bulk large grain GdBa2Cu3O7 (GdBCO) samples. [less ▲]

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See detailTraducción y retraducción al francés de Conversación en La Catedral
Belleflamme, Clémence ULiege

Conference (2017, July 09)

La ponencia se inscribe en el marco más amplio de una investigación de doctorado dedicada a la retraducción al francés de obras literarias hispanoamericanas de la segunda mitad del siglo XX. Además de una ... [more ▼]

La ponencia se inscribe en el marco más amplio de una investigación de doctorado dedicada a la retraducción al francés de obras literarias hispanoamericanas de la segunda mitad del siglo XX. Además de una parte teórica, dedicada a la noción traductológica de retraducción, la tesis constará de un estudio de casos, los de Pedro Páramo, de Juan Rulfo, y de Conversación en La Catedral, de Mario Vargas Llosa. Ambas novelas se tradujeron por primera vez al francés unos años después de su publicación y por segunda vez a principios del siglo XXI. Se investigarán tanto las estrategias editoriales como las estrategias de traducción, que un análisis textual de índole descriptivo debería permitirme deducir de manera inductiva a partir de las diferencias lingüísticas y pragmáticas que existen entre las distintas versiones. En esta ponencia, presento los primeros resultados del análisis textual comparativo de las versiones en francés de Conversación en La Catedral y formulo las primeras hipótesis en cuanto a los motivos para retraducir. [less ▲]

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See detailEvaluating flexibility and adequacy in future EU power systems: model coupling and long-term forecasting
Quoilin, Sylvain ULiege; Nijs, Wouter; Zucker, Andreas

in Proceedings of the 2017 ECOS Conference (2017, July 09)

There is an increasing need for improving the representation of the power system in energy system models. Recent research has shown that the economic value of each MWh of Variable Renewable Energy (VRE ... [more ▼]

There is an increasing need for improving the representation of the power system in energy system models. Recent research has shown that the economic value of each MWh of Variable Renewable Energy (VRE) declines with growing deployment. There are two main reasons for this: (1) even with limited shares of VRE, there is a reduced utilisation of dispatchable power plants and (2) with high shares of VRE, there can be possible excess electricity that might have to be curtailed in case of insufficient storage capacity. These findings tend to be completely ignored by models with low temporal resolution and high shares of VRE. In this work, we aim at endogenizing the flexibility constraints into long-term planning models (such as the JRC-EU-TIMES model) by taking profit of Dispa-SET, a unit commitment and optimal dispatch model. The main idea is to derive generic functions from Dispa-SET that can be used by JRC-EU-TIMES and all other energy system models. In particular, we evaluate the impact of increased variable renewable power and different configurations of power systems (production, storage, EVs, demand and flexible demand) (1) on the operations of power plants and the different storage options, determining their economics such as operating hours, number of cycles and (2) on the amount of possible excess power (power that has to be curtailed, stored, or transformed. Simulations are run in Dispa-SET for a wide set of exploratory configurations of the power system in Dispa-SET. Then, a statistical analysis of the results is performed to derive generic flexibility functions. An example of the use of such flexiblity function is finally proposed for a long-term simulation in the JRC-EU-TIMES model at the European level, showing a non-negligible impact on the value of VRE, on the utilization of dispatchable generation, and on the required storage capacity. [less ▲]

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See detailEffects of a giant exercising board game intervention on ambulatory physical activity among nursing home residents: a preliminary study
Mouton, Alexandre ULiege; Gillet, Nicolas; Mouton, Flore et al

Conference (2017, July 08)

Purpose: This study examined the effects of a giant (4 meters by 3 meters) exercising board game intervention on ambulatory physical activity (PA) and on a broader array of physical and psychological ... [more ▼]

Purpose: This study examined the effects of a giant (4 meters by 3 meters) exercising board game intervention on ambulatory physical activity (PA) and on a broader array of physical and psychological outcomes among nursing home residents. Materials and methods: A quasi-experimental longitudinal study was carried out in two comparable nursing homes. Ten participants (aged 82.5 ± 6.3 and comprising 6 women) meeting the inclusion criteria took part to the one-month intervention in one nursing home, whereas eleven participants (aged 89.9 ± 3.1 with 8 women) were assigned to the control group in the other nursing home. The giant exercising board game required participants to perform strength, flexibility, balance and endurance activities. The assistance provided by an exercising specialist decreased gradually during the intervention in an autonomy-oriented approach, based on the self-determination theory (SDT). The following were assessed at baseline, after the intervention and after a follow-up period of three months: PA (steps/day and energy expenditure/day with ActiGraph, GT3X+), cognitive status (MMSE), quality of life (EQ-5D), motivation for PA (BREQ-2), gait and balance (Tinetti and SPPB), functional mobility (Timed Up and Go) and the muscular isometric strength of the lower limb muscles. Results and conclusions: In the intervention group, PA increased from 2921 steps/day at baseline to 3358 steps/day after the intervention (+14.9%, p = 0.04) and 4083 steps/day (+39.8%, p = 0.03) after three months. Energy expenditure/day also increased after the intervention (+110 kcal/day, +6.3%, p = 0.01) and after three months (+219 kcal/day, +12.3%, p = 0.02). Quality of life (p < 0.05), balance and gait (p < 0.05), and strength of the ankle (p < 0.05) were also improved after three months. Such improvements were not observed in the control group. The preliminary results are promising but further investigation is required to confirm and evaluate the longterm effectiveness of PA interventions in nursing homes [less ▲]

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See detailHercules in the Art of Renaissance Flemish Tapestry
Laruelle, Anne-Sophie ULiege

Conference (2017, July 08)

The exploits of Hercules, one of the most popular literary and artistic themes of the Renaissance, flourished particularly in tapestries, a major artistic genre of this period. Fine tapestries presenting ... [more ▼]

The exploits of Hercules, one of the most popular literary and artistic themes of the Renaissance, flourished particularly in tapestries, a major artistic genre of this period. Fine tapestries presenting this theme were produced by the best weaving workshops of the former Netherlands. The success of the theme in tapestry invites us to ponder on the special meaning given to it by the princes, the privileged recipients of these tapestries. There is no doubt that, more than any other hero, Hercules served as their model as he embodied the virtus heroica. We will delve deeper in the matter by focusing on the period between the middle of the fifteenth century (when the theme first appears in tapestries) and the 1560s. In addition to the exceptional quantity of preserved tapestries (over a 100!), the numerous references to the Herculean theme in ancient inventories and descriptions confirms its importance at the time and reveals the complexity of its iconography. [less ▲]

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See detailMémoire et "ouverture" : une analyse de la métaphore (spatiale et chirurgicale) dans Les taupes de Félix Bruzzone
Licata, Nicolas ULiege

Conference (2017, July 08)

À l’inverse d’Aristote, qui l’envisage comme un procédé rhétorique, Nietzsche fait de la métaphore un concept opératoire : une activité instinctive permettant d’accéder à l’essence des choses. Mais ... [more ▼]

À l’inverse d’Aristote, qui l’envisage comme un procédé rhétorique, Nietzsche fait de la métaphore un concept opératoire : une activité instinctive permettant d’accéder à l’essence des choses. Mais l’essence intime des choses, bien qu’indépendante de la métaphore en tant que moyen d’expression, se trouve en elle « comme le père par rapport à son fils », formule le philosophe allemand. Autrement dit, pour autant de fils, c’est-à-dire, de métaphores, que l’on possède, on ne dispose jamais que de dérivés de la chose, pas de la chose elle-même. D’où la nécessité de diversifier les métaphores pour tendre vers une perspective plus ample, plus compréhensive sur la chose. C’est d’ailleurs ce que fait Nietzsche lui-même dans ses essais. C’est aussi, il nous semble, ce que ferait Félix Bruzzone dans le roman ici considéré. Paru en 2008, Les taupes s’inscrit dans la tendance de la literatura de los hijos, ou « littérature des enfants » (sous-entendu, enfants de la dictature). Les caractéristiques qui distinguent ce roman des récits de mémoire traditionnels sont sa discontinuité et son imprévisibilité, ainsi que son langage métaphorique. Errance, voyage, maisons vides et tempêtes, travestisme, chirurgie, le livre contient diverses métaphores, métaphores au sens nietzschéen, large. Certaines d’entre elles sont décodables — on les appelle métaphores in presentia, car on en possède à la fois le « véhicule » et la « teneur » — ; d’autres demeurent absolument indéchiffrables — on nomme celles-là in absentia, car leur « teneur » fait défaut —. Un exemple de métaphore in presentia est le périple qu’effectue le protagoniste vers le sud. Descendre à Bariloche, c’est remonter dans un passé dont on ne peut, semble-t-il, s’extirper. D’un autre côté, on trouve un exemple éclatant de métaphore in absentia dans l’implant mammaire que subit ce même protagoniste dans les dernières pages du roman. Félix Bruzzone nous livre le véhicule de la métaphore mais garde pour lui sa teneur, et entre les deux, les possibilités sont presque infinies. La multiplication des métaphores dans Les taupes et, plus précisément encore, la présence d’une métaphore in absentia, mènent à s’interroger sur le procédé lui-même. Il est surprenant qu’à partir d’un matériau autobiographique Bruzzone produise un récit inachevé et codé. De fait les récits qui prennent pour sujet la dictature adoptent majoritairement la forme réaliste du témoignage. Mais le problème de ces récits est qu’ils reproduisent l’unicité du point de vue dictatorial qu’ils dénoncent. C’est ici que la définition nietzschéenne de la métaphore peut nous illuminer. Bruzzone, en diversifiant les métaphores, propose pour sa part un récit aux multiples points de vue : un roman « ouvert », au sens de collaboration théorique qu’Umberto Eco attribue à ce terme. Et quelle meilleure façon d’éviter le piège d’opposer à la dictature un autre point de vue unique, après tout, que d’inviter le lecteur à s’impliquer mentalement dans la réflexion à son sujet ? [less ▲]

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See detailScuola e esercizi scolastici nell'Egitto tolemaico-romano
Carlig, Nathan ULiege

Scientific conference (2017, July 07)

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See detailHealth and physical education from a European perspective
Cloes, Marc ULiege

Conference (2017, July 07)

At the end of the 20th century, several authors pointed out that physical education (PE) was crossing a crisis. The emphasis on the fight against a growing sedentariness of the society became ... [more ▼]

At the end of the 20th century, several authors pointed out that physical education (PE) was crossing a crisis. The emphasis on the fight against a growing sedentariness of the society became progressively one of the priorities of the national education leaders all around the world. In many countries, PE teachers had to implement new approaches in order to teach to the youth how to adopt a healthy lifestyle. Pre- and in-service PE teachers’ training started to propose programmes integrating health education in PE lessons while the reputation of the physical literacy concept spread quickly. Recently, Chin and Edginton (2014) invited scholars from 40 nationalities to describe the contemporary policies and practices of health and PE applied in their countries. Among those contributions, 23 concerned European countries. In this presentation, we will propose an overview of the trends that can be identified in this sample of European nations. Preliminary analysis underlines that combination of PE and health education is distributed along a continuum. At one extremity, PE’s input on health is not clearly expressed even if PE is expected to improve pupils and students’ health through selected activities like endurance training. At the opposite extremity, countries emphasize the role of the PE teacher as a health educator and not only through a limited focus on PA promotion and on the preparation of physically educated citizens. The second part of the paper will illustrate some actions that are undertaken in order to motivate the PE teachers to implement 'health enhanced physical activity' projects in their lessons. Such approaches respect principles associated with the concept of quality physical education (QPE). These PE classes should allow students to have positive individual and collective learning experiences where they develop knowledge, skills and dispositions that allow them to be autonomous and responsible decision makers relative to engagement in PA and sport in their lives (AIESEP, 2014). PE teachers need a new framework (Haerens et al., 2011) in order to leave their ingrained professional practices.. That starts by changing their representations on physical activity. Action-research, development of communities of practice, pedagogical cases and demonstration of the students’ interest for teaching approaches focusing on lifestyle aspects represent promising strategies to succeed in the process of changing the priorities. AIESEP (2014). 2014 AIESEP Position Statement on Physical Education Teacher Education. Available on Internet: http://aiesep.org/wp-content/uploads/2014/11/2014-AIESEP-Position-Statement-on-Physical-Education-Teacher-Education.pdf Chin, M.-K. & Edginton, C.R. (2014). Physical Education and Health Global Perspectives and Best Practice. Urbana, IL: Sagamore. Haerens, L., Kirk, D., Cardon, G., & De Bourdeaudhuij, I. (2011). Toward the Development of a Pedagogical Model for Health-Based Physical Education, Quest, 63:3, 321-338. [less ▲]

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See detailEVOLUTION OF SLUDGE INTERNAL STRUCTURE DURING DRYING: EFFECT OF THE CONDITIONING CONDITIONS
Fraikin, Laurent ULiege; Pambou, Yvon-Bert; Salmon, Thierry ULiege et al

Conference (2017, July 07)

This paper investigated the influence of dual conditioning of waste water treatment sludge on the evolution of sludge internal structure during convective drying. Results showed clearly an impact of ... [more ▼]

This paper investigated the influence of dual conditioning of waste water treatment sludge on the evolution of sludge internal structure during convective drying. Results showed clearly an impact of chemical conditioners on the evolution of the created porosity. For sludge flocculated by single conditioning, a centered porosity delimited by an external crust was shown, while for dual conditioning, a porosity structured in lamellae, was identified. [less ▲]

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See detailÊtre Professeur à l'Université de Liège aujourd'hui et demain
Parotte, Céline ULiege; Stassart, Isalyne ULiege; Contor, Justine ULiege et al

Report (2017)

Quelles sont les pratiques du corps enseignant de l’Université de Liège en matière d’enseignement, de recherche et de service à la communauté ? Quel devrait être le métier de Professeur demain ? Telles ... [more ▼]

Quelles sont les pratiques du corps enseignant de l’Université de Liège en matière d’enseignement, de recherche et de service à la communauté ? Quel devrait être le métier de Professeur demain ? Telles étaient les principales questions posées en filigrane du projet AS*PROF. Ce rapport propose une synthèse de l’analyse qualitative des deux tours de l’enquête Delphi en ligne (Mesydel) réalisée par le Centre de recherches Spiral entre décembre 2016 et avril 2017. Il s’agit d’un rapport d'analyse thématique de l'enquête par questionnaire, réalisée par les chercheurs qui ont géré l'enquête. Il a été rédigé de manière linéaire, chapitre par chapitre, pour servir de base aux réflexions menées par l’AS*PROF. Vu la qualité et la quantité des réponses, il a été décidé d’en reprendre dans ce texte de nombreux extraits en préservant le caractère direct voire rugueux de certaines réponses envoyées sous couvert d’anonymat, pour mieux illustrer les prises de position. Ce rapport a été présenté au Comité de suivi de l'enquête et l’AS*PROF en a discuté le contenu avec ses membres le 5/7/2017 à Colonster. Sur base des résultats de l'enquête, l'AS*PROF réalisera une analyse transversale et rédigera ses propres conclusions et propositions qui feront l’objet d’une publication en septembre 2017. Le présent résumé est envoyé ce 7/7/2017 à tous les répondants à l’enquête en ligne. Ce rapport présente la synthèse de l’analyse qualitative des deux tours de l’enquête Delphi en ligne (Mesydel) réalisée par le Centre de recherches Spiral entre décembre 2016 et avril 2017. [less ▲]

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See detailPratiques d'évaluation en enseignement supérieur
Detroz, Pascal ULiege

Scientific conference (2017, July 07)

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See detailLes formes de structuration de l'espace "stade" par le croisement des discours du football et de la publicité
Bassilua Nzuzi, Anicet ULiege

Conference (2017, July 07)

Le croisement du football avec la publicité semble structurer l’espace stade en plusieurs dimensions. Deux critères sont ainsi repérés : une structuration verticale et une structuration horizontale. La ... [more ▼]

Le croisement du football avec la publicité semble structurer l’espace stade en plusieurs dimensions. Deux critères sont ainsi repérés : une structuration verticale et une structuration horizontale. La structuration verticale s’opère par exemple dans les stades construits sur plusieurs niveaux. On observe que l’installation des panneaux publicitaires y suit un ordre de grandeur croissant partant de bas vers le haut, divisant le stade en plusieurs espace-unités à valeur inégales (le rez-de-chaussée, le premier niveau, le deuxième niveau, etc.). La structuration horizontale est réalisée à partir, par exemple, des effets de distance que créent la situation du spectateur et la zone d’exposition du panneau publicitaire : le spectateur situé à un certain endroit (le rez-de-chaussée, par exemple) est parfois invité à exécuter certains mouvements (le plus souvent latéraux : regards à l’angle du profil en suivant le déplacement du ballon). Ce faisant, il découvre des panneaux publicitaires par un rythme hiérarchique et discriminatoire : certains panneaux sont bien découverts ; d’autres, il ne les découvre que très peu ; d’autres encore ils ne les découvrent pas du tout. (Un spectateur situé au rez-de-chaussée à la hauteur de la ligne médiane du terrain du côté de la tribune de presse et qui regarde le match, peut découvrir des panneaux publicitaires situés en face de lui lorsqu’il suit, par exemple, des séquences de passe qui se déroulent le long de la ligne de touche opposée: regard de face ; il découvre des panneaux placés derrières les buts lorsqu’il regarde un but qui s’exécute : regard de profil ; il ne voit pas du tout les panneaux situés en contrebas de son siège, par exemple les panneaux derrières les bancs des staffs techniques des équipes). Les espaces-unités construits par ces deux types de structuration deviennent en réalité des lieux d’attribution des compétences modales des sujets (pouvoir faire, devoir faire, vouloir faire, savoir faire), les spectateurs en l’occurrence, qui sont les cibles de la communication publicitaire. Cette attribution se réalise en fonction de quatre régimes de distribution modale des panneaux : régime d’exposition, régime d’accessibilité, régime d’inaccessibilité et régime d’obstruction. Il s’instaure ainsi tout un système de hiérarchisation du public qui vient assister à un match de football au stade, lequel se réalise notamment en fonction de leurs différents degrés d’exposition aux messages publicitaires et qui, par ailleurs, sont parfois rendus possible par la dimension narrative du jeu (l’exécution des séquences : but, passe, remise en jeu, remise de touche, etc.). Plusieurs cas de ce système de hiérarchisation adviennent au cours d’un match. Par exemple, lorsque la diffusion des messages publicitaires tient compte du type de public sollicité pour le découvrir. C’est le cas de la discrimination des messages qu’opèrent les annonceurs lorsqu’ils peuvent choisir d’orienter certains messages vers un public spécifique, celui installé dans la tribune d’honneur par exemple, à l’exclusion d’autres. Notre étude explore cette structuration de l’espace qu’opère au stade le croisement du football et la publicité, en recourant aux outils de sémiotique. Nous considérons entre autres le football et la publicité comme deux discours présentant des schémas énonciatifs et argumentatifs différents : celui fondé sur une logique de l’épreuve engagée entre deux équipes en situation ludique, pour le football, et celui basé sur une logique communicationnelle fondé sur un schéma argumentatif de type persuasif, pour la publicité. [less ▲]

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