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See detailTowards a development of iron phosphate-based materials as positive and negative electrodes for Li-ion batteries
Karegeya, Claude ULiege

Doctoral thesis (2017)

The design, synthesis and electrochemical characterization of new electrode materials hold the key for fundamental advances in energy conversion and storage technologies. Polyanionic compounds have been ... [more ▼]

The design, synthesis and electrochemical characterization of new electrode materials hold the key for fundamental advances in energy conversion and storage technologies. Polyanionic compounds have been heavily investigated as possible electrode materials in lithium- and sodium-ion cells. This thesis focused on the design, synthesis, size and morphology tailoring of iron phosphate based electrode materials in order to enhance their electrochemical properties. Four iron phosphate-based electrode materials classified in three groups: Na2Mn1.5Fe1.5(PO4)3, NaxMxFe(3-X)(PO4)3 (X=1.25 when M=Ni and x=1.5 for M= Mn) and Fe1.19(PO4)(OH)0.57(H2O)0.43, were investigated in this work. All these compounds were obtained through wet chemical (hydrothermal or solvothermal) synthesis routes. The preparation protocols and characterization techniques to study the structural, particle size, morphological and electrochemical properties of the above materials have been discussed in the following chapters. Sodium manganese iron phosphate alluaudite structure is one of the studied compounds group. Na2Mn1.5Fe1.5(PO4)3 is obtained via one step hydrothermal synthesis reaction and it was electrochemically studied without any other further heat treatment. NaxMxFe(3-X)(PO4)3 (X=1.25 for M=Ni and x=1.5 for M= Mn) compounds were obtained through solvothermal method in ethylene glycol. Na1.25Ni1.25Fe1.75(PO4)3 is a new material. Both materials have been electrochemically characterized for the first time in this work. Fe1.19(PO4)(OH)0.57(H2O)0.43 was obtained by modifying conventional hydrothermal synthesis of this materials by the addition of conducting carbon (carbon black and carbon nanotubes) in the precursors solution during synthesis that enhance its electrochemical properties as described in this thesis. The Li-ion intercalation reaction mechanisms in Fe1.19(PO4)(OH)0.57(H2O)0.43 cathode material were also investigated by using operando XRD and Mössbauer spectroscopy techniques. The above studies of iron phosphate-based polyanionics as electrode materials in alkali metal-ion batteries show that this group may be the right key in replacing current commercial unsafe electrode materials. The possibility of improving alternative soft chemical synthesis methods to design new materials or improving electrochemical performance of existing electrode materials was also explored here. The roadmap for our current and future work has been proposed, the materials of our future interest have been chosen basing on their promising rich crystal structure and electrochemical properties by comparing them with the studied materials. [less ▲]

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See detailDevelopment of new catalysts for proton exchange membrane fuel cells (PEMFCs)
Zubiaur, Anthony ULiege

Doctoral thesis (2017)

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See detailPHILOSTORY Autour du spectacle de Louise Vanneste : « Therians »
Hagelstein, Maud ULiege; Pfeiffer, Natacha; Michaud, Philippe-Alain et al

Conference given outside the academic context (2017)

On entend souvent dire que la danse n’a rien à voir avec les images, qu’elle ne produit pas de symboles, et qu’elle échappe au régime de la représentation. On sait ce qui justifie cette idée : la danse ... [more ▼]

On entend souvent dire que la danse n’a rien à voir avec les images, qu’elle ne produit pas de symboles, et qu’elle échappe au régime de la représentation. On sait ce qui justifie cette idée : la danse serait la présentation même du mouvement, de sa puissance intrinsèque, autrement dit le mouvement exécuté plutôt que représenté. Or, quand bien même on s’accorderait sur l’idée que la danse n’illustre rien, cela ne veut pas dire pour autant qu’elle ne créée pas d’alliances avec le monde des images. La rencontre autour de « Therians » offrira l’occasion de rendre visibles les ressources très stimulantes offertes par la théorie de l’image pour un savoir du mouvement. Dialoguant ici avec deux spécialistes du cinéma, Louise Vanneste pourra déplier les dispositifs visuels expérimentés dans son travail (montage, contrastes/contacts, cadre, métamorphoses, hybridité, etc.). [less ▲]

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See detailზოგადი პრაქტიკის / საოჯახო მედიცინის ტერმინოლოგია, ვერსია 2.5
Jamoulle, Marc ULiege; Kareli, Ana; Natroshvili, Natia

Textual, factual or bibliographical database (2017)

ზოგადი პრაქტიკის / საოჯახო მედიცინის ტერმინოლოგია, ვერსია 2.5 Q-კოდი ძირითადი არაკლინიკური პრობლემების ტაქსონიმია, რომლებიც ხვდება ზოგადი პრაქტიკის/ოჯახის ექიმის პრაქტიკაში უწყვეტი პროფესიული ... [more ▼]

ზოგადი პრაქტიკის / საოჯახო მედიცინის ტერმინოლოგია, ვერსია 2.5 Q-კოდი ძირითადი არაკლინიკური პრობლემების ტაქსონიმია, რომლებიც ხვდება ზოგადი პრაქტიკის/ოჯახის ექიმის პრაქტიკაში უწყვეტი პროფესიული განვითარებისას Each of the Q-Codes has a definition. The definitions have been carefully selected from online available terminologies, papers or dictionaries available in the book. The below list is extracted from the HeTOP server www.hetop/Q . Each definition is followed by its source between brackets and by the corresponding Q-Codes. The file with the sources of the definition is available on www.3cgp.docpatient.net [less ▲]

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See detailART ET MARGE GOÛTER PHILO #2
Hagelstein, Maud ULiege

Conference given outside the academic context (2017)

À quoi servent les œuvres d'art si elles n'ont plus seulement vocation à être "belles" ? Quelle incidence peuvent-elles avoir sur la vie politique et sociale ? Dans le domaine de l'art, on a ... [more ▼]

À quoi servent les œuvres d'art si elles n'ont plus seulement vocation à être "belles" ? Quelle incidence peuvent-elles avoir sur la vie politique et sociale ? Dans le domaine de l'art, on a traditionnellement défini la marge par des catégories dont les contours sont parfois discutés : art brut, art différencié, art outsider, etc. Poser la question de la marge, c'est poser la question de sa porosité au monde dit "normal". Cette séance donnera l'occasion de réfléchir aux liens de l'art avec des trajectoires humaines différentes mais aussi avec la dimension non-professionnelle du geste de créer. Comment l'amateur ou l'autodidacte nous apprend-il quelque chose de ce qu'on appelle l'art ? On pourra notamment relire les textes de Dubuffet et les discuter au regard d'artistes qui nous bouleversent. [less ▲]

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See detailRapid changes in preoptic estradiol concentration during male sexual behavior
de Bournonville, Marie-Pierre ULiege; de Bournonville, Catherine; Ball, Gregory et al

Poster (2017, November 11)

Estrogens such as estradiol (E2) exert pleiotropic effects on physiological and behavioral responses such as neuroprotection, aggression or reproduction. Estrogens derived from local brain synthesis ... [more ▼]

Estrogens such as estradiol (E2) exert pleiotropic effects on physiological and behavioral responses such as neuroprotection, aggression or reproduction. Estrogens derived from local brain synthesis (neuroestrogens) are critical for the regulation of different functions including the control of male sexual behavior. Classically, E2 acts through effects initiated in the nucleus to regulate male sexual function. Along with these long-term effects, E2 also acts rapidly (within minutes) via membrane-initiated events. These effects are thought to depend on short-term variations in the local production of estrogens, through rapid fluctuations of the enzymatic activity of brain aromatase. In Japanese quail, rapid modulations of brain aromatase activity (AA) have been reported after sexual interactions or exposure to an acute stress. These changes take place mainly in the medial preoptic nucleus (POM), a sexually differentiated structure that plays a key role in the control of male sexual behavior and where aromatase is densely expressed. Yet, it has recently been shown that, in the short term, AA does not always reflect local E2 concentration. This study was designed to determine by in vivo microdialysis whether local E2 concentrations fluctuate during sexual interactions and test whether these changes parallel the decrease in AA observed ex vivo after copulation. We first conducted a series of experiments to validate the microdialysis and E2 assay. When dialysis probes were placed in successive baths containing known increasing amounts of E2, proportional changes in E2 concentration were measured in the dialysate. Moreover, a rise in E2 concentration was detected after in vivo retrodialysis of testosterone only if the probe was located within the POM and, after a peripheral injection of E2, a sharp rise of E2 was detected regardless of the probe location. Together these results show that in vivo microdialysis is a valid method to assess endogenous fluctuations of brain E2 concentrations in behaving animals. Two independent experiments then identified a rise in E2 concentrations in POM during sexual interactions. This increase occurred within 10 min after the initiation of the sexual interaction and was specific to the POM as there was no increase in E2 concentrations in males that had their cannula outside of this area. Together these data confirm that rapid changes in AA measured ex vivo cannot be considered as a reliable proxy for E2 concentrations. The discrepancies could originate either from the different time resolution related to the two techniques or from differences in the microenvironment in which aromatase functions in vivo and during ex vivo assays. [less ▲]

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Peer Reviewed
See detailX-ray study of bow shocks in runaway stars
De Becker, Michaël ULiege; del Valle, M.V.; Romero, G.E. et al

in Monthly Notices of the Royal Astronomical Society (2017), 471(4), 4452-4464

Massive runaway stars produce bow shocks through the interaction of their winds with the interstellar medium, with the prospect for particle acceleration by the shocks. These objects are consequently ... [more ▼]

Massive runaway stars produce bow shocks through the interaction of their winds with the interstellar medium, with the prospect for particle acceleration by the shocks. These objects are consequently candidates for non-thermal emission. Our aim is to investigate the X-ray emission from these sources. We observed with XMM-Newton a sample of 5 bow shock runaways, which constitutes a significant improvement of the sample of bow shock runaways studied in X-rays so far. A careful analysis of the data did not reveal any X-ray emission related to the bow shocks. However, X-ray emission from the stars is detected, in agreement with the expected thermal emission from stellar winds. On the basis of background measurements we derive conservative upper limits between 0.3 and 10 keV on the bow shocks emission. Using a simple radiation model, these limits together with radio upper limits allow us to constrain some of the main physical quantities involved in the non-thermal emission processes, such as the magnetic field strength and the amount of incident infrared photons. The reasons likely responsible for the non-detection of non-thermal radiation are discussed. Finally, using energy budget arguments, we investigate the detectability of inverse Compton X-rays in a more extended sample of catalogued runaway star bow shocks. From our analysis we conclude that a clear identification of non-thermal X-rays from massive runaway bow shocks requires one order of magnitude (or higher) sensitivity improvement with respect to present observatories. [less ▲]

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See detailAction-Based Language Gestalts in Working Memory
Dumitru, Magdalena ULiege

Conference (2017, November 11)

While evidence is mounting that perceptual grouping cues bene t working memory performance, it is debatable whether this is the main purpose of Gestalt formation. Indeed, recent ndings by Dumitru and ... [more ▼]

While evidence is mounting that perceptual grouping cues bene t working memory performance, it is debatable whether this is the main purpose of Gestalt formation. Indeed, recent ndings by Dumitru and colleagues demonstrate that people build language Gestalts that encode basic action patterns when reasoning with the connectives ‘and’ and ‘or’. Here we present novel evidence from dual memory tasks that Gestalt formation and maintenance breaks down under high working memory load for two age groups (18 to 30 year olds and 60 to 80 year olds). More importantly, the number of Gestalts evoked by the connectives (one for conjunction and two for disjunction) as well as the age-speci c performance levels with visual Gestalts predict the observed e ects. Well-established mappings between language and action patterns are thus a driving factor of Gestalt building and management in working memory. [less ▲]

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See detailDie Rhetorik des Friedens von Romain Rolland: ein Einfluß von Nietzsche
Franck, Thomas ULiege

Conference (2017, November 11)

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See detailMOOC et classes inversées ou cours magistraux. Données générales .
Hanzen, Christian ULiege

Scientific conference (2017, November 11)

Cette conférence avait pour objectif de conscientiser des enseignants universitaires aux potentialités offertes par les MOOC et la classe inversée pour favoriser l'apprentissage des apprenants.

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See detailProtection contre le licenciement en matière de harcèlement, charge de la preuve et notification du congé
Linguelet, Renaud ULiege

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2017)

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See detailRadicalisation violente des jeunes : vers une compréhension des processus pour guider nos interventions
Glowacz, Fabienne ULiege

Conference given outside the academic context (2017)

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See detailL’ethnopharmacologie, à l’origine de nombreux médicaments
Frederich, Michel ULiege

Conference (2017, November 10)

L’ethnopharmacologie peut être définie comme « l’étude scientifique interdisciplinaire des matières d’origine végétale, animale ou minérale, et des savoirs et pratiques s’y rattachant, que les sociétés ... [more ▼]

L’ethnopharmacologie peut être définie comme « l’étude scientifique interdisciplinaire des matières d’origine végétale, animale ou minérale, et des savoirs et pratiques s’y rattachant, que les sociétés mettent en œuvre à des fins thérapeutiques, curatives, préventives ou diagnostiques ». De nombreux médicaments indispensables aujourd’hui sont issus de ces connaissances traditionnelles : on peut citer par exemple l’universelle Aspirine®, provenant du saule, ou la quinine, médicament du paludisme, issu du quinquina Sud-Américain. Aujourd’hui encore, selon l’OMS, 80% de la population mondiale a recourt, en première intention, aux plantes médicinales pour se soigner. Néanmoins, ces connaissances traditionnelles sont aujourd’hui menacées, que ce soit pour des raisons d’appauvrissement de la biodiversité, ou de déstructuration des sociétés et des connaissances traditionnelles. 1. Fleurentin, J. Traditions thérapeutiques et médecine de demain. 2011. Editions Ouest-France. [less ▲]

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See detailImplementation of "Parler-Bambin" preventive program in the multilingual and multicultural context of nurseries/daycares in Lebanon
Moitel ép Messarra, Camille ULiege; Maillart, Christelle ULiege

Poster (2017, November 10)

This project is targeting prevention programs for language and communication difficulties in nurseries in Lebanon. More specifically, it will explore the implementation of a preventive program to enhance ... [more ▼]

This project is targeting prevention programs for language and communication difficulties in nurseries in Lebanon. More specifically, it will explore the implementation of a preventive program to enhance language skills in early childhood, and to specify the role of the Speech and Language Therapist (SLT) in this implementation. There is a growing consensus among researchers and clinicians that abilities acquired at an early age, especially in oral language, are predictive of children's academic performance and future social integration (Zorman, 2011). Preventive actions are increasingly recognized as a priority to improve public health worldwide (Law et al., 2013). In Lebanon, an ongoing national program (MHPSS 2015-2021 - MHPSS, Preventive and Curative, Ministry of Public Health, 2015) is taking part of this kind of healthcare development. Aims: Thus, taking into account some variables that affect the implementation process (environment communities, providers, prevention delivery system and the prevention support system), the aims of this project are 1) to study the feasibility of a preventive program model, that partners Speech and Language Therapist and educators or caregivers in daycare and nurseries, to facilitate language and communication in Lebanese toddlers (under 3 years old), 2) determine the success factors of the implementation. It will be based on a French program “Parler Bambin”, which is currently widely developed in France. Method: The first study will focus on the factors of engagement of different stakeholders in a prevention program: firstly, by identifying the professionals involved in nurseries in Lebanon and then identifying the characteristics of these stakeholders in diverse childcares. Data will be gathered through a questionnaire constructed or adapted from existing questionnaires for this purpose (eg, Preschool Teacher Literacy Beliefs Questionnaire [TBQ], Hindman and Wasik, 2008). Similarly, the questionnaires will address SLT’s representations about their role in supporting language in nurseries. Nominal groups or focus groups (Baribeau and Germain, 2010) and questionnaires will be also carried out to identify the facilitators of this kind of preventive actions and the specific needs of SLTs in preventive settings. A second phase will target the implementation process itself: adapting and implementing a preventive intervention, while taking into consideration implementation aspects. We will find out major variables that are worthy for the program’s implementation, by measuring its fidelity (dosage, quantity, intervention strength, quality, participant responsiveness, program differentiation, etc.), also using videos and direct coaching sessions. Pre and posttest measures will be applied on children (MCDI -The MacArthur communicative development inventories, Fenson et al., 1996; Questionnaire for parents of bilingual children LITMUS-PABIQ, COST IS0804, validation in Lebanon, Tuller 2015). Finally, following the pilot study, the implementation of the adapted program will be proposed according to different execution modalities to support its implementation: with a direct or indirect involvement of an SLT. It will be tested more widely, with particular focus on the role of the speech therapist. Evaluation measures similar to those presented in Phase 2 will be carried out. Expected results: This project will highlight the added value of speech therapy in setting up a prevention program. It also participates in the elaboration of a national strategic framework for the Speech and Language Therapy [less ▲]

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See detailTeacher-SLT co-intervention program to support language in kindergartens in Lebanon: methodology, procedures and measures
El Kouba, Edith ULiege; Maillart, Christelle ULiege

Poster (2017, November 10)

Background: The aim of this project is to develop a co-intervention program, lead by a teacher and an SLT, to support oral language in preschoolers in the Lebanese context (multicultural, multilingual ... [more ▼]

Background: The aim of this project is to develop a co-intervention program, lead by a teacher and an SLT, to support oral language in preschoolers in the Lebanese context (multicultural, multilingual). Actually, there is a growing consensus, that efforts to enhance children’s early language skills, can improve their reading skills and long-term academic achievement. However, some children are at risk of delays due to diverse environments (e.g. low socioeconomic status), and impoverished language and literacy experiences. Thus, international recommendations highlight the necessity for SLTs to conceptualize their intervention, according to community based needs, focusing on primary prevention for early communication and language difficulties, given their later impact on social and professional integration (Law 2013). Aims: In line with the recommendations of the Ministry of Public Health in Lebanon (Mental Health program services MHPSS, preventive and curative, Ministry of Public Health, 2015), the purpose of the project is to support language skills in preschoolers by adapting, implementing and analyzing co-intervention program that partners early childhood educators along with SLTs. Methods: First, we will identify the beliefs, representations and expectations of the different stakeholders (teachers, speech-language pathologists, school principals) through questionnaires and interviews among the diverse Lebanese school contexts in order to 1) identify the knowledge and 2) gather their expectations in the area of support and prevention for language difficulties in kindergarten. Second, the project aims to identify the quality of teacher-child interaction, considered as one of the primary mechanism that foster the development of child’s language competences. It is commonly assessed by using the Classroom Assessment Scoring System (CLASS-K; Pianta, La Paro, & Hamre, 2008). Ten dimensions will be considered: climate (positive or negative), teacher sensitivity, children's perspectives, behavior management, productivity, teaching practices and learning formats, concept Development, quality of feedback provided to the child, and linguistic modeling. Finally, we will design a co-intervention program that is the most consistent with the contextual, cultural and linguistic diversity in Lebanon. Two intervention settings will be addressed and compared: 1) a co-intervention with an SLT including direct coaching, and video-retroactions and 2) an implementation of the program led by the teacher after a training provided by an SLT. We will collect information about children’s bilingual environment through the Parental Bilingual Questionnaire (PABIQ-LITMUS, COST Action IS804), and we will evaluate interactions through CLASS-K (Pianta, La Paro, & Hamre, 2008), pre and post evaluation. Children's language skills will be measured through: ELO-L (Zebib, Khomsi, Henry, Messarra, & Kouba Hreich, Lebanon Tests Editions, 2017). Moreover, measurements of the fidelity of program’s implementation (dosage, adhesion, quality of the interactions, responsiveness) will also be carried out. Results: The expected results are intended to demonstrate to which extent an intervention program, to enhance communication and language skills, carried out jointly by teachers and speech therapists, would be more effective than a program delivered without the intervention of SLTs. The intervention of speech-language pathologists would thus have a more effective impact on the teachers' practices and the language skills of the children. This would justify the primary role of SLTs in indirect interventions in preschools in Lebanon. [less ▲]

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See detailStrongly interacting dark matter doesn't explain the DAMA signal
Laletin, Maxim ULiege

Scientific conference (2017, November 10)

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See detailCharles de Méan, le Papinien liégeois
Lagasse, Benoît ULiege

Doctoral thesis (2017)

La thèse tend à déterminer si Charles de Méan, surnommé le Papinien liégeois, mérite ce surnom signifiant qu'il a été le plus grand jurisconsulte qu'ait connu la principauté de Liège. Pour ce faire, elle ... [more ▼]

La thèse tend à déterminer si Charles de Méan, surnommé le Papinien liégeois, mérite ce surnom signifiant qu'il a été le plus grand jurisconsulte qu'ait connu la principauté de Liège. Pour ce faire, elle tend à étudier une partie de son oeuvre majeure, les Observationes et res judicatae ad jus civile Leodiensium, Romanorum, aliarumque gentium canonicum et feudale. Par ailleurs, la thèse met en exergue la spécificité du droit liégeois et tend à déterminer les influcences subies par ce droit. [less ▲]

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See detailLe corps, le territoire et le temps du sujet borderline
Englebert, Jérôme ULiege

Conference (2017, November 09)

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See detailLe jeu vidéo : pas si méchant. Des stéréotypes à la réalité
Krywicki, Boris ULiege

Conference given outside the academic context (2017)

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See detailRédiger en langue étrangère à l’université : des représentations à l’évaluation des pratiques scripturales
Meunier, Deborah ULiege

Conference (2017, November 09)

Le champ des littéracies universitaires (Blaser et Pollet, 2010 ; Delcambre et Lahanier-Reuter, 2010) prend pour objet d’étude les normes génériques, textuelles, pragmatiques des écrits produits à ... [more ▼]

Le champ des littéracies universitaires (Blaser et Pollet, 2010 ; Delcambre et Lahanier-Reuter, 2010) prend pour objet d’étude les normes génériques, textuelles, pragmatiques des écrits produits à l’université, mais aussi celle des représentations associées aux pratiques de lecture et d’écriture. Au-delà de la maitrise du code linguistique d’enseignement, les étudiants doivent acquérir des compétences discursives liées aux genres écrits et oraux auxquels ils sont confrontés durant leur cursus (cours magistral, séminaire, exposé, résumé, compte-rendu, rapport, travail de fin d’études,…). Nous verrons quels sont les défis que pose la maitrise des genres de discours universitaires écrits en français pour les étudiants non francophones : comment se fait l’acculturation à une écriture heuristique pour un étudiant qui apprend dans une langue étrangère ? Quelles sont les représentations (explicites ou implicites) des normes génériques activées par les enseignants (par ex. via les consignes) ? Et quelle(s) posture(s) adopter lorsqu’on doit évaluer des productions écrites en langue étrangère quand la langue (française) n’est pas objet d’enseignement ? A partir d’une analyse de discours d’enseignants en Sciences humaines, nous ferons le point sur les représentations et les normes qui régissent les pratiques et les défis actuels du français sur objectifs universitaires, en particulier lorsqu’on est face à des profils d’apprenants plurilingues et mobiles. [less ▲]

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