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See detailPolitique internationale de la culture : du patrimoine aux industries culturelles
Vlassis, Antonios ULg

Scientific conference (2016, December 09)

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See detailInvasive Alien Species in HeidelbergCement’s quarries in the European Union
Monty, Arnaud ULg

Conference (2016, December 09)

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See detailTraduire August Wilson: voix africaines américaines en français
Bada, Valérie ULg; Pagnoulle, Christine ULg

Scientific conference (2016, December 09)

Les rythmes syntaxiques and intonatifs ainsi que la langue allitérative et anaphorique propres à la poétique wilsonienne sont autant de complexités de traduction. Le présent article décrit les difficultés ... [more ▼]

Les rythmes syntaxiques and intonatifs ainsi que la langue allitérative et anaphorique propres à la poétique wilsonienne sont autant de complexités de traduction. Le présent article décrit les difficultés des traductrices à créer une langue en français qui respecte le rythme ainsi que la référentialité multiple du texte. [less ▲]

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See detailMineralogy and crystal chemistry of natural and synthetic uranyl oxysalts
Dal Bo, Fabrice ULg

Doctoral thesis (2016)

Since 1960, the number of described uranyl mineral species has been multiplied by three. To date more than 200 mineral species containing uranium as a main structural element are reported in Nature, and ... [more ▼]

Since 1960, the number of described uranyl mineral species has been multiplied by three. To date more than 200 mineral species containing uranium as a main structural element are reported in Nature, and the crystal structures have been determined and refined for only one third of them. Furthermore, many new uranyl minerals are still reported to data, showing sometimes novel chemical compositions and structural arrangements. The uranium mineralogy is a fascinating subject, and an essential field of research as it contributes to the improvement of the management techniques of nuclear waste. The first part of this work was dedicated to the mineralogical characterisation of uranyl minerals, and especially of the autunite-type minerals, occurring in the Rabejac deposit. Indeed, the identification analyses have shown that many samples contain uranyl arsenates of the autunite and meta-autunite groups. Electron-microprobe chemical analyses performed on these minerals species indicate that the P content in (meta-)zeunerite and (meta-)uranospinite is significant in several samples, confirming the solid-solution series between uranyl arsenates and phosphates. Also, cationic substitutions occurring on the A site were observed, especially in uranospinite samples, in which significant amount of Ca is substituted for Mg. Single-crystal X-ray diffraction experiments have been performed on many members of the (meta-)zeunerite-(meta-)torbernite series, and the crystallographic parameters were put into correlation with the variation of the chemical composition. The crystal structure of arsenuranospathite, the Asanalogue of the Al-bearing uranyl phosphate uranospathite, was solved for the first time, indicating that these two minerals are isostructural (Dal Bo et al., 2015). Also, a structure model is proposed for metauranocircite-I, one of the Ba-bearing uranyl phosphate of the meta-autunite group. Investigations of uranyl mineral samples from other localities have allowed to discover single-crystals of bassetite, one of the Fe end-members of the autunite group. The crystal structure of bassetite was also solved for the first time, and these new structural data were presented in parallel to those obtained on saléeite, the Mg-analogue of bassetite (Dal Bo et al., 2016). Thanks to these new data, a discussion about the mineral hierarchy of the (meta-)autunite group is proposed. In addition, the crystal structure of the rare Al-bearing uranyl phosphate furongite from the Kobokobo pegmatite was determined, showing that this mineral species has unique and novel structural features. This specific study, as well as the redefinition of the structural formula of phuralumite, was the occasion to provide a review about the formation of Al polyhedra clusters in uranyl minerals, and to try to elucidate their physicochemical conditions of crystallisation. Many new crystallographic data were also collected on uranyl minerals for which the crystal structure was already reported in the literature. Therefore, it was possible to confirm the previous studies, or to highlight important discrepancies, especially in the case of the Al-bearing uranyl phosphate phuralumite. The H-bonds networks, which are essential for the stability of the structure, have been established in the structure of the uranyl carbonate liebigite, and in the structure of the uranyl silicates cuprosklodowskite, kasolite and soddyite. The second part of this work was devoted to the hydrothermal synthesis of uranyl oxysalts. The experimental conditions, as well as the chemical systems, were chosen in agreement with the conditions occurring in natural uranium deposits, or in geological repositories. A new compound, Be[(UO2)(PO4)]2(H2O)2.5, has been synthesized at low temperature. This is the third Be-bearing uranyl phosphate reported to date, and its crystal structure is based upon sheets showing the uranophane anion topology, typical of uranyl silicates occurring in the oxidation zone of the uranium deposits. The well-known Ba[(UO2)3(MoO4)4(H2O)](H2O)3 and (NH4)2[(UO2)(MoO4)2](H2O) compounds have been synthesized, and new crystallographic data were collected on them. In addition, it was possible to determine the hydrogen-bonds networks for the first compound, and to redefine the Mo6+ coordination polyhedra in the second one. [less ▲]

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See detailXenogeneic graft-versus-host disease: Impact of Th17 cells.
Delens, Loïc ULg; SERVAIS, Sophie ULg; Vrancken, Louise et al

Poster (2016, December 08)

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See detailPlanned Obsolescence, Nature and the Self in American Literature
Lombard, David ULg

Conference (2016, December 08)

On the cusp of the 1980s, when it became increasingly apparent that humanity had left its mark on every inch of the surface of the earth and altered its atmosphere, the idea of a strictly natural world ... [more ▼]

On the cusp of the 1980s, when it became increasingly apparent that humanity had left its mark on every inch of the surface of the earth and altered its atmosphere, the idea of a strictly natural world became obsolete and needed to be reimagined. As a result, American environmentalist Bill McKibben presented in his essay The End of Nature (1989) the hypothesis of a postnatural world, a world in which nature has ended ‘both as a discrete biophysical entity and as a meaningful concept’ (McKibben, 1989). This presentation will aim at demonstrating how American civilisation ‘planned’ the obsolescence of both nature and the self through its yearning for progress, production and for the accumulation of manufactured products and wealth. Besides commenting on McKibben’s essay, I will draw parallels between other works such as Henry David Thoreau’s memoir Walden (1854) and Don DeLillo’s novel White Noise (1985) in order to illustrate how the evolution of the American process of self-realisation that was originally connected to the natural landscape led to the fragmentation of the self in the postmodern landscape as expressed, for instance, in Fredric Jameson’s book Postmodernism, or, the Cultural Logic of Late Capitalism (1991). I will also argue that Thoreau anticipated the notion that a construction of an identity based on a transcendental relationship with sublime nature was soon to be replaced by a transcendental experience with objects of consumption¬—or waste—or, more largely, with the postmodern sublime landscape. I will show that American literature may be at odds with Bernard London’s representation of consumer capitalism and with his description of planned obsolescence as a means of ‘salvation’ for the American people (London, 1932). [less ▲]

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See detailLimited impact of imatinib in a murine model of sclerodermatous chronic graft-versus-host disease (scl-cGVHD)
Fransolet, Gilles ULg; Belle, Ludovic; SOMJA, Joan ULg et al

Conference (2016, December 08)

- Introduction: Graft-versus-host disease (GVHD) remains one of the major complications following haematopoietic stem cell transplantation (HSCT). Approximately 15% of the patients with chronic GVHD ... [more ▼]

- Introduction: Graft-versus-host disease (GVHD) remains one of the major complications following haematopoietic stem cell transplantation (HSCT). Approximately 15% of the patients with chronic GVHD develop the sclerodermatous form of the disease characterized by multiple organ fibrosis and loss of skin elasticity. Several studies have shown the potential benefits of imatinib, a tyrosine kinase inhibitor (TKI), as a treatment of fibrosis in cGVHD due to its ability to inhibit simultaneously PDGF-R and c-Abl pathways which are both involved in fibrosis mechanisms. - Aims: Some early-phase clinical studies have assessed the impact of TKIs in patients with steroid-refractory cGVHD. Unfortunately, these studies yielded to conflicting results underlying the importance of re-assessing the impact of imatinib in scl-cGVHD pre-clinical models. This work investigates the possible benefits of imatinib on fibrosis in a murine model of sclerodermatous chronic GVHD (scl-cGVHD). - Methods and results: Lethally irradiated Balb/cJ mice (7 Gy TBI) were injected i.v. with 1.106 or 10.106 bone marrow cells and 2.106 or 70.106 splenocytes from B10.D2 donnor mice (Moderate and Classical scl-cGVHD models respectively). Mice were then treated with sterile water or imatinib (150 mg/kg/day) by oral gavage from day +7 to day +52 following transplantation. cGVHD severity was assessed three times/week with a scoring system encompassing 5 criteria (mice posture, weight loss, activity, hair loss, skin integrity ; 0-1-2 point(s)/criteria). Skin biopsies were performed on day +29 following transplantation to assess phosphorylation of c-Abl (TGF-β pathway) and PDGF receptor. Our results show that imatinib failed to prevent/improve GVHD with a similar evolution of the GVHD severity with no differences between groups (neither in moderate cGVHD model, nor in the classical cGVHD model). Mice weight loss during the experiments was also comparable between groups in both models of cGVHD. In the classical model, histological analyses indicate a significant reduction of the phosphorylation level of the PDGR receptor (p = 0.0079). In vivo cell proliferation assay with CFSE were also performed and showed a reduced proliferation of T cells and subsets (CD4, CD8 and Tregs) in spleen, lymph nodes, bone marrow and blood after imatinib treatment. Finally, FACS analyses performed on days +21 and +35 after transplantation did not show any differences in the absolute T-cell counts. - Conclusions: Although we have observed a decreased phosphorylation level of PDGR receptor and less proliferation of T cells and subsets in vivo, imatinib failed to alleviate scl-cGVHD both in moderate and classical murine models of scl-cGVHD. [less ▲]

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See detailJournée transversale inter fédérations - BelRAI Screener
Delye, Samuel ULg; Maggi, Patrick ULg; Gillain, Daniel ULg

Conference (2016, December 08)

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See detailEnjeux culturels de l'obsolescence technique et esthétique des jeux vidéo
Delbouille, Julie ULg; Hurel, Pierre-Yves ULg

Conference (2016, December 08)

Dès ses premières tentatives d’expansion sur le marché domestique, le jeu vidéo est marqué du sceau d’une double obsolescence : obsolescence ​te​chnique, qui régulera de plus en plus la durée de ... [more ▼]

Dès ses premières tentatives d’expansion sur le marché domestique, le jeu vidéo est marqué du sceau d’une double obsolescence : obsolescence ​te​chnique, qui régulera de plus en plus la durée de vie des dispositifs de jeu, mais également​ es​thétique, poussant le consommateur à remplacer des machines que la succession rythmée des « générations » rend rapidement désuètes. Cette obsolescence double est renforcée par l’omniprésence dans les discours de la course à la technologie : la presse spécialisée entretient la promesse de « lendemains qui chantent » (Triclot, 2016), glorifiant l’avenir du jeu vidéo. Ce motif récurrent se diffuse également dans les médias généralistes — qui, pendant plusieurs décennies, puisent dans la dimension économique du médium un des seuls discours bienveillants le concernant (Delbouille, 2018) — ainsi qu’auprès du grand public. A contrario, plusieurs pratiques culturelles développées par les joueurs viennent répondre à cette fuite en avant : d​ u ​retrogaming ​ au ​retromaking, de l’émulation aux politiques de patrimonialisation du médium (Barbier, 2014), ces pratiques ​constituent autant de tactiques (De Certeau, 1990) de résistance face à cette stratégie industrielle. Elles permettent ​alors d’aborder différemment, par exemple, l'histoire du jeu vidéo ​— qui n'est encore généralement envisagée que par le biais de sa dimension technique. Par la rupture qu’elles semblent marquer ​avec les productions dominantes, ces pratiques se situent « en décrochage » par rapport​ ​à la temporalité de l’industrie. L’objet de cette communication, en faisant dialoguer ces deux dynamiques, est de constituer l'obsolescence en tant qu’outil d’analyse des enjeux culturels du jeu vidéo. En résistant à l'obsolescence, en refusant l'expiration d'anciennes ​« ​delivery technologies » (Jenkins, 2013), les amateurs (Hurel, 2017) affirment l'existence d'un média jeu vidéo à part entière. Quant aux acteurs industriels, en réintégrant ces pratiques de décrochage au sein de leur course technologique, ils semblent arpenter une ligne de crête ​— cherchant ​à bénéficier d'un statut culturel qui leur serait bénéfique, sans pour autant abandonner le cœur de leur moteur économique. [less ▲]

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See detailL'open access, au service de la visibilité de la recherche et des chercheurs ? L'expérience d'ORBi
Thirion, Paul ULg

Scientific conference (2016, December 08)

Comme bien d’autres établissements scientifiques, l’université de Liège s’est lancée il y a quelques années dans le grand bain de l’open access en choisissant d’emprunter la voie verte. En 2007 est ... [more ▼]

Comme bien d’autres établissements scientifiques, l’université de Liège s’est lancée il y a quelques années dans le grand bain de l’open access en choisissant d’emprunter la voie verte. En 2007 est ainsi née ORBi (Open Repository and Bibliography), archive ouverte propre à l’établissement mais dont le contenu est indexé et récupéré (moissonné) par de nombreux autres portails, lui donnant ainsi une visibilité considérable. Mais la particularité d’ORBi tient au fait que dès la création de l’archive, le Conseil d’Administration de l’université de Liège a mis en place une politique obligatoire de dépôt des références et documents. Ainsi, ORBi concentre dans un seul réservoir l’ensemble de la production scientifique de l’établissement, afin d’en donner la visibilité la plus large possible. Pourquoi avoir choisi d’imposer le dépôt des publications dans ORBi ? Cette décision a-t-elle eu un impact sur la valorisation de la recherche à l’université de Liège ? sur la visibilité des chercheurs eux-mêmes ? [less ▲]

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See detailPrésidence de la session "Literature and Destruction"
Delville, Michel ULg

Diverse speeche and writing (2016)

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See detailIntegrated continuous flow photoreactors: Photooxidation of (L)-methionine with singlet oxygen
Emmanuel, Noémie ULg; Mendoza Gallego, Carlos ULg; Lismont, Marjorie ULg et al

Poster (2016, December 08)

Development of photochemistry in macroscopic batch reaction vessels is hampered due to inherent limitations: light penetration remains superficial, resulting in inhomogeneous irradiation and hence to side ... [more ▼]

Development of photochemistry in macroscopic batch reaction vessels is hampered due to inherent limitations: light penetration remains superficial, resulting in inhomogeneous irradiation and hence to side-reactions or product degradation due to overexposure. The recent implementation of photochemical processes in microreactors under continuous-flow conditions appeared to be much more powerful than its batch analogue in terms of irradiation efficiency and light penetration. Furthermore, the fine control of residence time ensures an accurate control of the irradiation time, avoiding side-reactions and degradation. The photooxidation of (L)-methionine with singlet oxygen using Rose Bengal as a sensitizer was successfully implemented in a microreactor setup and led to total and selective conversion into methionine sulfoxide, an important building block for the organic synthesis of peptides or functionalized amino acid. The reaction was performed in 2 min while the same reaction in batch took 2h. [less ▲]

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See detailEtat du territoire wallon : structures territoriales
Halleux, Jean-Marie ULg

Conference (2016, December 08)

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See detailDARIAH-BE: Towards an ecosystem of Digital Humanities Research Centres in Belgium
Chambers, Sally; Deroo, Katrien; Dozo, Björn-Olav ULg et al

Conference (2016, December 08)

Digital Humanities is flourishing in Belgium. There are Virtual Research Environments (VRE) for studying transnational intellectual collaborations in the area of social reform and the political and social ... [more ▼]

Digital Humanities is flourishing in Belgium. There are Virtual Research Environments (VRE) for studying transnational intellectual collaborations in the area of social reform and the political and social history of the Belgian justice system. Tools being developed to digitally uncover the genetics of manuscripts or create a linked data structure to map networks across the ancient world. Furthermore, Electronic Literature across Europe is being mapped and video games are being studied using humanities research methods. The digitisation of artistic, historic and scientific collections is also a key priority in Belgium. With the Belgian Art Links and Tools platform, BALaT, the development of a Data Hub for Museums and Belgium’s digitised newspapers in Belgica Press being flagship examples. Alongside this rich tapestry of activities, Belgium is a Founding Member of DARIAH-EU, the Digital Research Infrastructure for the Arts and Humanities. The aim of DARIAH in Belgium is to develop and offer a sustainable portfolio of services enabling digital scholarship in the arts and humanities in Belgium and beyond. To realise this, partner institutions within Belgium are in the process of establishing Digital Humanities Research Centres which together will form a humanities-specific digital ecosystem, offering services both within their own institutions and to other institutions in Belgium. Additionally, selected services will be scaled-up for use within the European DARIAH community, and offered as in-kind contributions to DARIAH-EU. In this paper we will explore both the intra- and inter-institutional context of digital humanities centres in Belgium. Starting at the intra-institutional level, we will introduce two existing digital humanities research centres: the Centre Informatique de Philosophie et Lettres (CIPL, Université de Liège) in the French-speaking part of Belgium and the Ghent Centre for Digital Humanities (GhentCDH, Ghent University) in the Dutch-speaking part of Belgium. We will examine both the organisational goals of these centres and how they support digital humanities research within the university, with a particular focus on the collaborations they set up on an institutional level (for example with IT services and the library as well as between research groups). Furthermore, we compare these existing centres, with the newest digital humanities centre in Belgium, the Leuven Centre for Digital Humanities (LCDH) which is currently in the process of being established in the Dutch-speaking university and DARIAH partner institution, KU Leuven. Finally, we will analyse the opportunities and challenges in the inter-institutional context. While challenges such as the complex funding landscape and multilingual research environment should not be underestimated, there are many opportunities that can be celebrated. For example, collaborative training initiatives, such as Research Community Digital Humanities Flanders, which is open to members beyond Flanders, the annual DH Benelux conference which offers a platform for collaboration between digital humanities projects in Belgium, the Netherlands and Luxembourg and joint-funding opportunities such as the Belgian Research Action through Interdisciplinary Networks (BRAIN) programme. Additionally, activities for participation in DARIAH-EU, including preparing Belgian in-kind contributions and establishing DARIAH Working Groups not only addresses these challenges, but contributes to ensuring that digital humanities activities in Belgium thrive. [less ▲]

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See detailPoint Clouds as an Efficient Multiscale Layered Spatial Representation
Poux, Florent ULg; Neuville, Romain ULg; Hallot, Pierre ULg et al

in Tourre, Vincent; Biljecki, Filip (Eds.) UDMV16: Eurographics Workshop on Urban Data Modelling and Visualisation (2016, December 08)

3D point clouds describe urban shape at different scales, precisions and resolutions depending on the underlying sensors and acquisition methodology. These factors influence the quality of the data, as ... [more ▼]

3D point clouds describe urban shape at different scales, precisions and resolutions depending on the underlying sensors and acquisition methodology. These factors influence the quality of the data, as well as its representativity. In this paper, we propose a multi-scale workflow to obtain a better description of the captured environment through a multi-scale representative point cloud, presenting an unlimited depth and multisensory data fusion. Our method is shown over a ''smart point cloud'' data structure and based on data fusion principles retaining higher description and precision on overlapping areas. The concept is illustrated through a use case on the castle of Jehay (Belgium), where aerial LiDAR data, terrestrial laser scanner point cloud and photogrammetrybased reconstruction are combined to obtain a multi-scale data structure. [less ▲]

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