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See detailL'économie collaborative
Gautier, Axel ULiege

Conference given outside the academic context (2017)

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See detailPathologie thyroidienne chez le sujet âgé
VALDES SOCIN, Hernan Gonzalo ULiege

Scientific conference (2017, November 13)

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See detailElastic scattering, total cross sections and 𝝆 parameters at the LHC
Cudell, Jean-René ULiege

Speech/Talk (2017)

Detailed reference viewed: 25 (11 ULiège)
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 detailLe risque dans l’investissement de l’espace extérieur. Une construction culturelle et sociale ?
Razy, Elodie ULiege

Conference given outside the academic context (2017)

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See detailEtude de la transmission du gammaherpèsvirus murin 4: importance de la glycoprotéine gp150 et développement de stratégies antivirales basées sur l'utilisation du cidofovir
Zeippen, Caroline ULiege

Doctoral thesis (2017)

Gammaherpèsviruses are important pathogens in human medicine. Indeed, Epstein Barr virus and Kaposi Sarcoma associated herpesvirus are responsible for numerous lymphoproliferative diseases and cancers ... [more ▼]

Gammaherpèsviruses are important pathogens in human medicine. Indeed, Epstein Barr virus and Kaposi Sarcoma associated herpesvirus are responsible for numerous lymphoproliferative diseases and cancers. Murid Herpesvirus-4 (MuHV-4) is usually used as a model for human gammaherpèsviruses. Until now, the major limitation of this model was the absence of transmission in laboratory animals. Recently, a sexual transmission of MuHV-4 has been described in laboratory mice. This observation allows, on the one hand, to study mechanisms underlying natural transmission, such as cellular trospism, importance of viral proteins, or immunity response during this part of the cycle. On the other hand, this transmission model allows to test efficiency of measures to reduce transmission. Indeed, herpesvirus are archetype of persistant viruses as infection persists lifelong once established. Studying mechanisms underlying transmission and how to use these mechanisms to reduce it efficiently is therefore of primordial importance. In a first study, we focussed on the biological relevance of mechanisms described previously in vitro. Indeed, a MuHV-4 glycoprotein, gp150, has been shown to participate to the release of infectious particles from cells and to evasion of humoral immunity, two functions that could be important for the virus during transmission. Our results showed that gp150 is essential for an efficient sexual transmission of the MuHV-4. Indeed, gp150 promotes the release of infectious particles from infected vaginal epithelial cells. These results has been published in Journal of Virology in July 2017. In a second study, the same model was used to test efficiency of an antiviral molecule to reduce sexual transmission of the MuHV-4. A nucleotide analogue, the cidofovir, was administrated to mice according to different protocols. A daily administration of cidofovir reduced drastically genital shedding, but also prevent completely infection of naive mice after sexual contact. Finally, a single injection of cidofovir, administered 24 hours after sexual contact, reduced significantly transmission. Altogether, in this work, we used a transmission model of a gammaherpèsvirus in two differents studies: the first foccused on glycoprotein implicated during the transmission and established the importance of a single viral glycoprotein for an efficient transmission. The second study highlighted the efficiency of antiviral drugs to prevent infection by gammaherpesviruses. [less ▲]

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

Doctoral thesis (2017)

Detailed reference viewed: 8 (1 ULiège)
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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 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 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 ▲]

Detailed reference viewed: 21 (5 ULiège)
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 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 jeu vidéo : pas si méchant. Des stéréotypes à la réalité
Krywicki, Boris ULiege

Conference given outside the academic context (2017)

Detailed reference viewed: 26 (2 ULiège)
Peer Reviewed
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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See detailDesign of a hydraulic nozzle with a narrow droplet size distribution
De Cock, Nicolas ULiege

Doctoral thesis (2017)

Nowadays, pesticides use is necessary to satisfy the growing demand for agricultural products. During pesticide spray application, the agricultural mixture containing the active ingredient is fragmented ... [more ▼]

Nowadays, pesticides use is necessary to satisfy the growing demand for agricultural products. During pesticide spray application, the agricultural mixture containing the active ingredient is fragmented to a cloud of droplets of various sizes and speeds. The droplet size distribution within the spray affects the efficiency of the treatment. According to the target, a specific droplet size should be used. However, hydraulic nozzles usually used in field application produce sprays with a wide droplet size distribution containing an important proportion of small or too large droplets. This results in non-optimal application and therefore losses of product into the environment. This statement conducted the research as early as in the 60’s to create the rotary atomizer. This device is able to produce narrow droplet size distribution using Plateau-Rayleigh break up mechanism. The characteristics of the produced spray by the rotary atomiser can be tuned by adjusting the rotational speed and the volumetric flow rate. Although offering agronomic and environmental qualities this has not met success for the application of plant protection products in field crops because of their cost, size and complexity. The aim of the thesis was the design of a hydraulic nozzle with the rotary atomizer qualities and without the constraints of rotating parts. Unlike the rotary atomizer which has two control variables, the developed hydraulic nozzle will have a narrower operating range, thus a specific geometry has to be design for each kind of treatment. The new hydraulic nozzle design is composed by an inlet pipe ending perpendiculary on a plate. There is a thin opening at the junction between the pipe and the plate. The edge of the plate is constituted of channels formed by structures. These channels aim to divide the liquid sheet in multiple jets. The breakup of these jets into droplets generate a narrow droplet size distribution. The thesis can been seen as a roadmap providing design tools at each step starting from the determination of an optimal droplet size according to the kind of treatment and ending with a nozzle geometry. The prediction of the optimal droplet size according to the treatment was done using integrated modelling approach of the spray transport and retention by the plant. As each spray requires a specific nozzle geometry, an analytical model of the flow on the nozzle was developed. This model allows the determination of geometry according to the desired spray. Finally, a prototype of nozzle has been built. The measurement of the spray characteristics of the prototype was realized using a developed high-speed imaging technique providing the droplet size and speed. The prototype showed results in term of narrowing of the droplet size distribution. [less ▲]

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See detailImpacts de contaminations sur la végétation et la faune du sol
Liénard, Amandine ULiege

Conference given outside the academic context (2017)

Detailed reference viewed: 11 (1 ULiège)
Peer Reviewed
See detailFrom Gasoline Alley to Walt & Skeezix. Layers of Autobiography in Frank King's Comic Strip Reprints
Crucifix, Benoît ULiege

Conference (2017, November 09)

This paper focuses on Jeet Heer and Chris Ware’s D+Q reprints of Frank King’s original 1920s-1930s newspaper comic strip, suggesting that the paratext of these 21st-century editions provide an ... [more ▼]

This paper focuses on Jeet Heer and Chris Ware’s D+Q reprints of Frank King’s original 1920s-1930s newspaper comic strip, suggesting that the paratext of these 21st-century editions provide an “autobiographical reading” of the comic strip. Heer and Ware thus participate in the retrospective integration of Frank King’s comic strip within the autobiographical paradigm dominating the graphic novel. In doing so, the reprints acknowledge how King adapted to the cultural and commercial constraints of the newspaper strip to produce an indirect form of life-writing. [less ▲]

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See detailArt Brut et bande dessinée : influences, convergences et sympathies
Dejasse, Erwin ULiege

Scientific conference (2017, November 09)

Detailed reference viewed: 126 (0 ULiège)
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Peer Reviewed
See detailChina’s new relations with Panama and Costa Rica are another step towards a Beijing Consensus in Central America
Wintgens, Sophie ULiege

in LSE Latin America and the Caribbean (2017)

Increased trade, aid, investment, and diplomatic engagement between China and both Costa Rica and Panama signal a more general projection of Chinese economic and political standards in international trade ... [more ▼]

Increased trade, aid, investment, and diplomatic engagement between China and both Costa Rica and Panama signal a more general projection of Chinese economic and political standards in international trade policy. [less ▲]

Detailed reference viewed: 24 (4 ULiège)