References of "Scientific congresses and symposiums"
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See detailEtat du territoire wallon : structures territoriales
Halleux, Jean-Marie ULg

Conference (2016, December 08)

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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 detailFACILITER L'ADHÉRENCE AU TRAITEMENT IMMUNOSUPPRESSEUR CHEZ LES TRANSPLANTÉS DU REIN- TEST D'UN SYSTEME DE COACHING PAR SMARTPHONE
Saint-Remy, Annie ULg; Spiroux, Marie; WEEKERS, Laurent ULg et al

Poster (2016, December 08)

Facilitate adherence to immunosuppressive treatment in kidney transplant recipients – test of a coaching system with smartphone application A.Saint-Remy, M. Spiroux, L. Weekers, C. Bonvoisin, JM ... [more ▼]

Facilitate adherence to immunosuppressive treatment in kidney transplant recipients – test of a coaching system with smartphone application A.Saint-Remy, M. Spiroux, L. Weekers, C. Bonvoisin, JM. Krzesinski Introduction: Nonadherence to immunosuppressants is a determining cause of graft loss. The present study tested during 1 month, the usefulness and the effectiveness of a coaching system using smartphone application (the Transplant Smartcoach®) on adherence in kidney transplant recipients. Methodology: The sample included 51 patients (28m/23w) transplanted for 1 year at least, mean age 52±12 years, mean graft survival 3.7±1 years. Each patient had a smartphone configured with its detailed treatment. Using the smartphone application, patient had to notify daily the intake of each tablet into a 2-hour window. If no notification was performed 1 hour later than the scheduled time of intake, the patient was contacted by a nurse to remind him to take medications. Results: 90 % of patients were treated with Tacrolimus and 10 % with cyclosporine, associated with mycophenolic acid (41 %) or mycophenolate mofetil (49 %), 41 % had corticosteroids. Whatever was the immunosuppressant, a perfect adherence (medications taken at the scheduled time) was observed on average in 53 % of the morning monthly intakes. There was no difference in adherence rates between the morning intakes of Advagraf ® (once/day) and Prograft® (2 times/day), a decrease of perfect adherence was identified with the evening intake of Prograft® (53 % vs 44%; P=0.07) and the one of Myfortic® (P=0.03) with consequently an increased frequency of nurse’s recalls. Adherence was lower in younger patients and in those still working. The complexity of treatment (many drugs intake/day) and the respect for time intervals between drug intakes were the major barriers to adherence. When compared to the one measured before using the Smartcoach, the variability (coefficient of variation, %) of the Tacrolimus trough level decreased by 32.6 % (P=0.027) in the 3 to 6 months following the test. Conclusion: patients appreciated the ease and usefulness of the coaching system with smartphone application to help medication adherence. Coupled with therapeutic education of the patients, that tool deserves to be used notably in newly transplanted patients and when a worrying decrease in adherence is observed to help them in the management of a rigorous adherence which should contribute to graft survival. [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 detailDrawing technical contrasts to address prenatal testing
Thoreau, François ULg

Conference (2016, December 07)

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See detailCHARACTERIZATION OF THE KABYLE BREED OF HEN (THAYAZIT LEKVAYEL) AND ITS FARMING SYSTEM IN THE REGION OF CHEMINI AND BOUZEGUENE (ALGERIA)
Moula, Nassim ULg

in INTERNATIONAL CONFERENCE Agriculture Development in the Context of International Integration: Opportunities and Challenges (2016, December 07)

The rural poultry in Algeria is a supplier of popular products. The aims of this study are to characterize local chickens in Kabylie in terms of the livestock practices, management, flock structures, uses ... [more ▼]

The rural poultry in Algeria is a supplier of popular products. The aims of this study are to characterize local chickens in Kabylie in terms of the livestock practices, management, flock structures, uses, performance and phenotypes. The present survey addresses this issue in the case of Kabylie, a mountainous coastal region of Algeria, and concerns 28 households raising poultry and a morpho - biometric description of 388 (290 females and 98 males) adult local chickens. The farming practices is characterized by a reduction in the time allocated for this activity and to deal with production costs which are aspects of an unproductive extensive livestock system considered as a secondary activity. The body weight is 2.03 ± 0.22 kg and 1.61 ± 0.19 kg respectively in the male and the female. The age at first egg, egg weight, egg production per hen per clutch, number of clutches per year, hatchability and number of chicks weaned are 28.00 ± 3.82 weeks, 49.03 ± 3.66 g, 13.57 ± 1.64, 3.82 ± 1.14, 89.29 ± 9.79% and 7.82 ±1.75 respectively. The comb type is mostly single (89.43%). Skin colours are principally white (39.18%) and yellow (39.43). The comb and wattles are mostly red (93.30). Shanks colours are principally yellow (49.74%) and white (24.23%). The most common plumage colours are salmon (14.43%), white (12.11%), black (17%), grey (9.54%) and gold (9.02%). The genetic improvement of local poultry breeds is also to consider, provided that the suitability of the animal with respect to the context of its breeding is preserved. [less ▲]

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See detailOpen Access: challenging the norm in academia
Rentier, Bernard ULg

Conference (2016, December 07)

Science communication is undergoing a considerable evolution in the Internet era. Open Access is at last letting researchers, scholars and students in developing countries acquire full access to ... [more ▼]

Science communication is undergoing a considerable evolution in the Internet era. Open Access is at last letting researchers, scholars and students in developing countries acquire full access to scientific knowledge. Nowadays, this represents a bit less than half of the scientific literature, the other half being still hidden behind paywalls and unaffordable by them. Unfortunately, in order to preserve their highly profitable business model, the major publishing companies are flipping the model from "pay to read" to "pay to publish". This is the most important threat for African and other developing countries: the price to pay for reading freely is the loss of opportunity to communicate. A truly democratic future, at the international level, calls for publicly run open publication platforms accessible to all, submitted to open reviewing and immediately accessible. This novel communication tool can only be attractive upon two conditions: 1) it must be attractive enough so that the researchers become aware of the advantages it provides in terms of audience, visibility and potential citations; 2) the research/researcher evaluation processes must take the new paradigm in consideration and quit using the current indirect metrics (proxys) such as the journals impact factor. However, this indispensable change in the evaluation tradition must be adopted worldwide and at the same time if no scientific community, particularly the young generation, is to be sacrificed. [less ▲]

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See detailGenetic diagnosis and emergence of patients and relatives' evidence-based activism
Duysens, Fanny ULg

Conference (2016, December 07)

Health- and disease-related events may be of highly significance for patients and their relatives. Naming a medical diagnosis is one of them. It carries the inherent power of (re)configuring the ... [more ▼]

Health- and disease-related events may be of highly significance for patients and their relatives. Naming a medical diagnosis is one of them. It carries the inherent power of (re)configuring the individuals' life courses, which are moreover closely linked to those of their relatives, and especially blood families in the case of (hereditary) genetic diseases. Drawing on ethnographic observations and narratives from patients and relatives involved in some Belgian organizations concerned with genetic disorders, this paper is interested in the ways these concerned people make sense of the naming of a medical diagnosis event by (re)interpreting their past familial stories, trying to intervene in the present, and designing a desired future. Then, it explores the case of the annual charity TV show "Téléthon", which is an initiative launched at the initiative of some French-speaking patients’ organizations (POs) concerned with neuromuscular disorders in the aims at putting awareness on rare disorders and raising funds in order to support biomedical research, especially in the field of medical genetics. The point is to question the dynamic relationships between the individual and familial experiences and such collective mobilizations, that is to say the dynamic relationships between individual and collective dimensions of POs' evidence-based activism. The argument is that such forms of activism participate in the co-construction of "gene worlds" (Timmermans & Shostak, 2015), through the relations between various actors and institutions: POs, scientific and medical professionals, public health institutions, and healthcare systems. [less ▲]

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See detailImplication of Importin-8 in mouse brain development
Nganou, Gerry ULg; Coumans, Bernard ULg; De Nijs, Laurence et al

Poster (2016, December 06)

Importin-8 (IPO8) is a protein that regulates the nucleocytoplasmic transport of some proteins important for cerebral development (Ago2, c-Jun, Smad4). In HEK cells, IPO8 seems to not plays others roles ... [more ▼]

Importin-8 (IPO8) is a protein that regulates the nucleocytoplasmic transport of some proteins important for cerebral development (Ago2, c-Jun, Smad4). In HEK cells, IPO8 seems to not plays others roles (like mitotic spindle formation, primary cilium transport). In situ hybridization performed in mouse brains slices shows that IPO8 is already expressed at E14. Moreover, inhibition of its action (IPO8) in embryonic mouse brain leads to impairment of neuroblast migration to upper cortical layers. IPO8 could then be at the origin of some pathologies with neuronal migration deficit. [less ▲]

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See detailPourquoi un (énième) colloque sur le format epub ?
Dozo, Björn-Olav ULg

Conference (2016, December 05)

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See detailConflict prevention measures in Belgium
Behrendt, Christian ULg

Conference (2016, December 05)

Conference given as part of the international "Shades Negotiation Program", organized by the Egmont Institute ; Brussels, House of Representatives, on December 5, 2016.

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See detailQuelques réflexions autour d'un texte de Théodore Scaltsas
Dawans, Stéphane ULg; Houbart, Claudine ULg

Conference (2016, December 02)

Face à l’extension du champ de l’intervention sur l’existant et au brouillage des limites entre rénovation et restauration d’édifices et d’ensembles allant du monument historique au bâti générique, ancien ... [more ▼]

Face à l’extension du champ de l’intervention sur l’existant et au brouillage des limites entre rénovation et restauration d’édifices et d’ensembles allant du monument historique au bâti générique, ancien ou récent, il semble plus que jamais utile d’accepter la notion de bricolage conceptuel et de réfléchir à une « boîtes à outils » permettant aux futurs architectes de faire face à la complexité des enjeux de la réhabilitation. En effet, face à ceux-ci, les théories de la restauration monumentale qui sont enseignées dans les instituts et facultés d’architecture atteignent parfois leurs limites et nous semblent devoir être complétées par/confrontées à de nouveaux concepts ou théories susceptibles d’élargir et même de renouveler notre vision des choses. C’est ainsi que depuis plusieurs années, nous avons choisi de faire un pas de côté et d’interroger des champs aussi éloignés que la logique formelle, l’ontologie de l’art et les théories littéraires et travaillons actuellement à une anthologie critique de textes variés mais tous susceptibles d’intéresser les conservateurs (du patrimoine mobilier et immobilier) et donc aussi, les architectes intervenant sur l’existant. Parmi ces textes, oeuvres d’auteurs en grande partie méconnus dans le champ du patrimoine, « Identity, Origin and spatio-temporal continuity », du philosophe Théodore Scaltsas, professeur à l’université d’Edimbourg, et extrait d’une revue en grande partie écrite en langage mathématique, nous parait particulièrement intéressant à analyser lors du séminaire. En utilisant des exemples aisément transposables au milieu de l’architecture, il aborde notamment la question de l’intention d’une reconstruction de manière originale et interpellante, qui n’autorise plus les fréquents amalgames justifiant tout et n’importe quoi et émanant non seulement du monde économique mais aussi des milieux du patrimoine dits autorisés. Par ailleurs, il enrichit le débat sur l’authenticité d’une dimension peu prise en compte à ce jour et particulièrement éclairante dans le cas des productions modernes et contemporaines, qui constituent l’un des enjeux les plus actuels de la réhabilitation. [less ▲]

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See detailSchizophrénie et hyperconscience : Une étude en première personne
Englebert, Jérôme ULg; Valentiny, Caroline

Conference (2016, December 02)

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See detailPossible worlds: verbo-nominal patterns with chance
Van linden, An ULg; Brems, Lieselotte ULg

Conference (2016, December 02)

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See detailDésir, mal d'enfant, stérilité
Naziri, Despina ULg

Conference (2016, December 02)

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See detailOviposition deterring effect of Ocimum basilicum L. (Lamiaceae) on Tuta absoluta Meyrick (Lepidoptera: Gelechiidae)
Yarou, Boni Barthélémy ULg; Bawin, Thomas ULg; Boullis, Antoine ULg et al

Poster (2016, December 02)

Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) is one of the most important pests of tomato, reducing crop yield in greenhouses and fields, in several countries around the world. Because synthetic ... [more ▼]

Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) is one of the most important pests of tomato, reducing crop yield in greenhouses and fields, in several countries around the world. Because synthetic insecticides lead to resistance and have adverse effects on natural enemies and producers’ health, there is a need for alternatives. In this study, we assess the oviposition deterring effect of O. basilicum using dual-choice behavioral assays performed in flight tunnels. Two modalities were tested, i.e. (1) a tomato plant associated either with an O. basilicum plant versus a tomato plant associated with a plastic pot only filled with potting soil, and (2) a tomato plant with basil essential oil (EO) formulated in paraffin oil (PO) versus a tomato plant with PO only. A 1 ml cylindrical polyethylene plug loaded with 100 µl of solution (formulated EO or PO) was placed on each plant as a diffuser. Forty-eight hours after the release of unsexed adult individuals randomly sampled from the rearing in the central area of the tunnel, we found that plants and EOs reduced T. absoluta oviposition behavior on a nearby located tomato plant. GC-MS analyses showed that the major constituents include estragol (73.8%), linalool (8.6%), β-elemene (2.9%) in O. basilicum essential oils and E-α-bergamotene (38.9%), methyl eugenol (26.1 %), E-β-ocimene (17.7 % ) in O. basilicum VOCs collected with solid-phase micro-extraction method. These results suggest a valuable potential of O. basilicum and associated essential oils as component of an integrated management strategy against the tomato leafminer. [less ▲]

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See detailFrom Silenced Nature to Worldness in American Literature
Lombard, David ULg

Conference (2016, December 02)

As Christopher Manes writes, ‘[n]ature is silent in our culture […] in the sense that the status of being a speaking subject is jealously guarded as an exclusively human prerogative’ (Manes, 1996 ... [more ▼]

As Christopher Manes writes, ‘[n]ature is silent in our culture […] in the sense that the status of being a speaking subject is jealously guarded as an exclusively human prerogative’ (Manes, 1996). According to this view, nature is less silent than silenced, the difference lying in a refusal to have a relationship with the natural world because of the lack of adequate language to describe our relationship with our natural environment. Human faculties promoted by the Enlightenment have led humans to believe that our language ‘ha[s] no analogues in the natural world’. I will show that American authors such as Henry David Thoreau, John Muir, Aldo Leopold or Edward Abbey accounted for a multi-sensorial experience of nature that betrays an attempt to find a form of language that would relate humans to natural elements. Although nature does not ‘speak’, I will argue that humans were provided with their sensory perception that allows them to appreciate worldness and to develop a harmonious relationship with the rest of the world. I will also stress that our alienation from the natural world is as much a cultural problem as it is a consequence of Western consumer capitalism and supermodernity, as suggested, for example, in Don DeLillo’s White Noise (1985). Adopting an ecocritical approach, I will examine the ways in which we tend to perceive worldness as silent and how literary texts may revive worldness and world as essential concepts in the study of the relationship between literature and our physical environment. [less ▲]

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See detailMicroplastics Contamination in Three Planktivorous and Commercial Fish Species
Collard, France ULg; Das, Krishna ULg; Gilbert, Bernard ULg et al

in Fate and Impact of Microplastics in Marine Ecosystems - From the Coastline to the Open Sea (2016, December 02)

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See detailHow to use serology in Sexually Transmitted Infections
HUYNEN, Pascale ULg; LIBOIS, Agnes

Conference (2016, December 02)

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See detailThe Croesus’ Campaign Against Ephesos. Historical & Archaeological considerations
Leloux, Kevin ULg

Conference (2016, December 01)

Herodotus, in the Lydian logos of his first Book, more particularly in the context of the History about Croesus, relates that the Lydian king began his reign with a series of military campaigns against ... [more ▼]

Herodotus, in the Lydian logos of his first Book, more particularly in the context of the History about Croesus, relates that the Lydian king began his reign with a series of military campaigns against the Greek cities of Asia Minor. Ephesos was the first one to suffer and, according to the historian, it was during this campaign that the inhabitants of Ephesos have linked the city-walls to the Artemision, in order to dedicate the city to the goddess. In my presentation, I will reconsider the archaeological excavations of the Artemision and the city of Ephesos by the British and the Austrians. Uncovered fragments of Greek and Lydian inscriptions indicate that Croesus made offerings to the sanctuary. As for the Lydian inscription, I can propose a new reading in light of the works dealing with the Lydian kings’ onomastic. I will also reconsider the results of excavations searching for the Archaic City (not yet surely localised), for which no defensive wall has ever been uncovered so far. Thus, the comments of Herodotus and even Polyaenus cannot find any archaeological confirmation. Moreover, it appears that the episode of the rope linking the Artemision to the City of Ephesos has been an imagined story inserted by Herodotus in his Histories (then repeated by Polyaenus). Eventually, it seems that Croesus never besieged the city, with Ephesos surrendering to the Lydian king without any conflict. [less ▲]

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See detailGeneralized Pascal triangles and binomial coefficients of words
Stipulanti, Manon ULg

Poster (2016, December 01)

We introduce a generalization of Pascal triangle based on binomial coefficients of finite words. These coefficients count the number of times a word appears as a subsequence of another finite word ... [more ▼]

We introduce a generalization of Pascal triangle based on binomial coefficients of finite words. These coefficients count the number of times a word appears as a subsequence of another finite word. Similarly to the Sierpinski gasket that can be built as the limit set, for the Hausdorff distance, of a convergent sequence of normalized compact blocks extracted from Pascal triangle modulo 2, we describe and study the first properties of the subset of [0, 1] × [0, 1] associated with this extended Pascal triangle modulo a prime p. From the extended Pascal triangle obtained when p is equal to 2, we derive a sequence of which we study the regularity and the asymptotic behavior of the summatory function. Inspired from this regularity, we extend our results to another famous numeration systems, namely the Zeckendorff numeration system. [less ▲]

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See detailAspects du bilinguisme à Rome
Rochette, Bruno ULg

Conference (2016, December 01)

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See detailMéthodologie de localisation de systèmes fixes d’identification de plaques minéralogiques sur le réseau routier
Trotta, Marie; Donnay, Jean-Paul ULg

in Emsellem, Karine; Josselin, Didier; Sierra, Diego Moreno (Eds.) et al Actes de la Conférence SAGEO 2016 (2016, December 01)

Despite increasing use of ANPR cameratechnology, especially in criminal investigations, literature and the experience of the police with whom we worked, seem to show that there is no systematic method to ... [more ▼]

Despite increasing use of ANPR cameratechnology, especially in criminal investigations, literature and the experience of the police with whom we worked, seem to show that there is no systematic method to locate as adequately as possible these expensive facilities. Given a set of four categories of robberiesover one year localized within the province of Liège (Belgium), we propose a methodology based on a multi-criteria analysis, making use of density offenses, road density and the distance between the sites of the cameras. Multi-criteria approach can adjust the factorweightings for different types of offenses. In addition, the methodology is iterative, insofar cameras sites are located in successive phases. One result validation criteria is provided in the form of a territorial coverage rate considering the number of selected camera sites and the travel time from each of these sites. [less ▲]

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See detailLe profil en fibres alimentaires de légume modifie leur fermentation intestinale et la production d’acides gras à chaine courte dans modèle in vitro humain
Kalala Bolokango, Gaetan ULg; Kambashi Mutiaka, Bienvenu ULg; Njeumen, Patrick et al

Poster (2016, December 01)

La modulation du microbiote intestinal induite par les fibres alimentaires (DF)a des conséquences positives sur la santé, notamment sur l’obésité et ses comorbidités. La nature et l’ampleur des ... [more ▼]

La modulation du microbiote intestinal induite par les fibres alimentaires (DF)a des conséquences positives sur la santé, notamment sur l’obésité et ses comorbidités. La nature et l’ampleur des changements dépendent du type de fibres.Les légumes sont des sources privilégiées de DF, certaines espèces et variétés fournissant davantage de DF solubles (SDF), d’autres étant plus riches en DF insolubles (IDF). Contrairement aux SDF, les IDF sont souvent considérées comme peu fermentescibles, ne contribuant que faiblement à une modulation de l’écophysiologie intestinale. En opposition à cette hypothèse, pour explorer si l’impact potentiel sur la santé intestinale des légumes varie suivant leur nature, des légumes présentant des teneurs et des profils en DF différents ont été comparés dans un modèle in vitro de fermentation colique. [less ▲]

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See detailDigital dentistry from a perio perspective.
LAMBERT, France ULg

Conference (2016, December)

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See detailIntramolecular continuous-flow strategy towards methylphenidate (Ritalin) hydrochloride
Gerardy, Romaric ULg; Winter, Marc; Vizza, Alessandra et al

Poster (2016, December)

threo-Methylphenidate hydrochloride is the most widely prescribed drug to treat attention deficit hyperactivity disorder (ADHD). Herein we present the batch-to-flow translation of a carbene-based ... [more ▼]

threo-Methylphenidate hydrochloride is the most widely prescribed drug to treat attention deficit hyperactivity disorder (ADHD). Herein we present the batch-to-flow translation of a carbene-based intramolecular strategy for the diastereoselective preparation of this active pharmaceutical ingredient. The process relies on the thermal generation and decomposition of a hazardous diazospecies, its thermal intramolecular C-H insertion reaction yielding an intermediate β-lactam, and its subsequent acidic methanolysis, giving enriched threo-methylphenidate hydrochloride in 70% isolated yield. The automated microfluidic setup telescopes 2 chemical transformations, 1 intermediate in-line purification and sustains a daily productivity of 20.4 g/day of methylphenidate hydrochloride. The preparation of the β-lactam is implemented on mesoscale in a pilot-scale continuous-flow reactor, providing 4.25 kg of this key intermediate per day. [less ▲]

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See detailHost Interleukin 6 and Indoleamine 2,3 Dioxygenase Regulate Inflammation in the Brain during Graft Versus Host Disease
Belle, Ludovic ULg; Koester, E; Hansen, E et al

in Blood (2016, December), 128

Graft versus host disease (GVHD) commonly induces pathological damage in peripheral target organs such as the skin, liver and gastrointestinal tract leading to well characterized organ-specific clinical ... [more ▼]

Graft versus host disease (GVHD) commonly induces pathological damage in peripheral target organs such as the skin, liver and gastrointestinal tract leading to well characterized organ-specific clinical manifestations. A number of studies, however, have shown that patients with GVHD can also have behavioral and mood alterations that can affect overall cognitive function and lead to significant impairments in quality of life. The extent to which GVHD contributes to cognitive dysfunction and induces inflammation within the central nervous system (CNS), however, has not been critically examined. To address this question, we conducted studies using two well-defined murine GVHD models [C57BL/6(H-2b)→Balb/c (H-2d) and B10.BR(H-2k)→B6 (H-2b)]. We observed that there was a significant increase in the number of donor-derived CD4+ and CD8+ T cells in the brains of GVHD recipients early (days 7 -14) and late (day 42) post transplantation compared to BM controls. Histological studies revealed activated microglial cells and CD3+ T cell infiltration in the periventricular regions of brains in GVHD recipients that were not present in BM animals. Real time q-PCR analysis also demonstrated significant increases in IFN-γ, TNF-α, and IL-6 mRNA expression indicative of a proinflammatory state. Notably, GVHD animals exhibited behavioral changes in the forced swim test and elevated plus maze which are validated assays of stress coping and anxiety, respectively. Since IL-6, in particular, plays a pivotal role in GVHD pathogenesis in murine models and humans, we examined whether blockade of IL-6 signaling altered neuroinflammation. Animals treated with an anti-IL-6R antibody had a significant reduction in the number of donor-derived CD4+ and CD8+T cells in the brain compared to isotype control-treated mice. Anti-IL-6R treatment of GVHD mice also resulted in significant reductions in IFN-γ, TNF-α, and IL-6 mRNA and normalized behavior in the forced swim test, indicative of a decreased inflammatory response. Since IL-6 is produced by a wide variety of cells, including microglial and T cells, both donor and recipient cells have the potential to modulate GVHD severity within the CNS. To define whether donor or host IL-6 production was most critical for inducing neuroinflammation, experiments were conducted employing IL-6-/- mice as either donors or recipients. Whereas the absence of IL-6 in donor-derived cells had no impact on the degree of inflammation within the CNS, recipient animals that lacked IL-6 had a significant decrease in the number of donor-derived T cells which accumulated in the brain as well as a marked reduction in inflammatory cytokines, indicating that host IL-6 production was critical. To define the downstream pathways of IL-6-mediated CNS inflammation, we examined the role of indoleamine 2,3-dioxygenase (IDO) since IL-6 has been shown to upregulate IDO-1 expression under inflammatory conditions. We observed that IDO-1 mRNA levels were significantly increased in the brains of GVHD animals, and that blockade of IL-6 signaling resulted in a marked decrease in IDO mRNA levels. Additionally, transplantation studies using IDO-/- mice revealed that host, but not donor, IDO production was required for maximal inflammatory effects. Serotoninergic projections to the prefrontal cortex (PFC), in particular, are sensitive to inflammation and contribute to stress coping behavior. Therefore, to further interrogate this pathway, we performed quantitative mass spectrometry of brain extracts from the PFC. We found that tryptophan and 5HT concentrations were not different between BM and GVHD groups. However, there was an increase in the IDO product, kynurenic acid, in GVHD recipients consistent with an increase in brain IDO expression. To provide additional support for the premise that IL-6 effects were mediated through the IDO pathway, recipient mice were treated with either 1-methyltryptophan (1-MT), a completive inhibitor of IDO, or a vehicle control. GVHD mice treated with 1-MT had decreased accumulation of T cells in the brain and normal behavior in the forced swim test, demonstrating that inhibition of IDO abrogated CNS inflammation and behavioral changes in the presence of intact IL-6 signaling. In summary, these studies demonstrate that host IL-6 and IDO regulate inflammation and adversely impact behavioral function within the brain during GVHD through the tryptophan metabolic pathway. [less ▲]

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See detailContinuous Monitoring of Jupiter's Aurora and Io Plasma Torus with the Hisaki Satellite during Joint Observing Campaign with Juno
Kimura, Tomoki; Yamazaki, Atsushi; Murakami, Go et al

Poster (2016, December)

The Hisaki satellite is the first space telescope that is dedicated to observations of our solar system bodies. Hisaki has been continuously monitoring the atmosphere and magnetosphere of the solar system ... [more ▼]

The Hisaki satellite is the first space telescope that is dedicated to observations of our solar system bodies. Hisaki has been continuously monitoring the atmosphere and magnetosphere of the solar system bodies with the extreme ultraviolet (EUV) spectroscope EXCEED since the launch in September 2013. Dynamics on timescales from 10s minutes to a few years were discovered in the atmosphere and magnetosphere by the continuous monitoring. Large joint observing campaigns for Jupiter by the Juno spacecraft in coordination with Hisaki, the Hubble Space Telescope (HST), and other facilities started in mid-2016. Before Jupiter Orbit Insertion, Juno made the in-situ solar wind measurements while Hisaki was simultaneously monitoring Jupiter's aurora and Io plasma torus. On Day of Year 142, Hisaki discovered that the EUV auroral emission power rapidly increased by a factor of ~3 but returned to a nominal level within one planetary rotation. The transient aurora was followed by brightening of the torus sulfur and oxygen ions that is proxy of the hot electron populations in the torus. At the same time, the relatively weak solar wind shock signatures were found in the JUNO/JEDI energetic particle data (Clark et al.). The transient variability is compared to the morphology observed by HST (Nichols et al.). Hisaki is going to monitor Jupiter in collaboration with the large observing program of HST (Grodent et al.) that will make ~150 exposures from this November. [less ▲]

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See detailEfficacité d’un programme de rééducation active pluridisciplinaire du dos : suivi de 812 patients lombalgiques chroniques
Mahieu, Geneviève; Boogaerts, M.; Tordeurs, D. et al

in Revue du Rhumatisme (2016, December), 83S

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See detailNEW INJECTABLE LIPOSOME AND DRUG-IN-CYCLODEXTRIN-IN LIPOSOME SYSTEMS ENCAPSULATING ESTETROL FOR THE TREATMENT OF ISCHEMIA DISEASES IN PREMATURE BABIES
Palazzo, Claudio ULg; Laloy, Julie; Delvigne, Anne-Sophie et al

Poster (2016, December)

Purpose: In 2010, almost 15 million of babies in the world are prematurely borned, 11.1 % of the total amount of alive children. Despite the better neonatology techniques, the number of preterm babies ... [more ▼]

Purpose: In 2010, almost 15 million of babies in the world are prematurely borned, 11.1 % of the total amount of alive children. Despite the better neonatology techniques, the number of preterm babies with motor, vision, hearing or mental deficiencies is still constant along the last twenty years. Moreover, no efficacy treatment is available to the present day. The estetrol (E4) has an important role in the brain development and protection. The aim of this study is to develop new injectable liposome and drug-in-cyclodextrin-in-liposome (DCL) formulations, encapsulating E4 in order to enhance its crossing through the blood-brain barrier (BBB). Methods: Cyclodextrins (CD) were used to increase E4 aqueous solubility. Liposome and DCL (E4-CD complex) formulations were prepared by thin-film hydration technique. The formulations were physicochemical characterized. LDH and MTS tests on endothelial, neuronal and BBB model cells were performed in vitro on the liposome formulation. Hemocompatibility of the formulations was evaluated on red blood cells, platelet aggregation and coagulation. BBB passage tests were performed using human BBB cell line (hCMEC/D3). Results: E4-CD complexes proportionally increased the solubility of the hormone. Liposomes and DCL encapsulating E4 were prepared. All the formulations had average particle size below 150 nm, polydispersity index below 0.10 and ζ potential around + 30 mV. The encapsulation efficacy for liposomes was between 3% and 10% while those of DCL are between 15% and 35%. Moreover, the formulations are capable to release 80 % (liposome) and 90 % (DCL) of encapsulated E4 after 3 h at 37°C. The effect of liposome and DCL formulations on cell viability and integrity was evaluated. The results showed no toxic effects on all the tested cell lines. Hemocompatibility tests showed no hemolysis, platelet aggregation or effects on coagulation, confirming the possibility of the formulations to be intravenously administrated. BBB passage tests highlighted the capability of the formulations to pass the BBB and reach the brain. Conclusions: New non-toxic, hemocompatible liposome and DCL formulations encapsulating E4 were prepared. The formulations are promising drug delivery system to target estrogens to the brain, due to their physiochemical characteristics. [less ▲]

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See detail共生菌Hamiltonella defensa对蚜虫的影响
Guo, Jianqing ULg; Wang, Zhenying

in 中国青年植保科技创新 (2016, December)

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See detailWorkshop: Comparative methods in evolutionary biology
Frederich, Bruno ULg; Santini, Francesco

Conference (2016, December)

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See detailAssessing edge-effects in Posidonia oceanica seagrass meadows: A multidisciplinary approach
Lapeyra, Jon; Abadie, Arnaud; Lejeune, Pierre et al

Conference (2016, December)

Structural boundaries in ecosystems play an important role both in the context of seascape architecture, ecological processes and biodiversity. The Mediterranean Seagrass Posidonia oceanica (L.) Delile is ... [more ▼]

Structural boundaries in ecosystems play an important role both in the context of seascape architecture, ecological processes and biodiversity. The Mediterranean Seagrass Posidonia oceanica (L.) Delile is considered an ecosystem engineer species, forming habitats of great ecological value and providing many ecosystem services. This study aims to (1) determine whether there are differences between seagrass-sand corridors edges and the adjacent continuous meadow, and (2) investigate whether anthropogenic pressures can cause disturbances in the measured parameters along the edges and the meadow. We have developed a multidisciplinary approach combining plant physiology, faunal canopy community studies and seagrass structural parameters characterization. We performed in situ chlorophyll fluorescence measurements using a Pulse Amplitude Modulated (Diving-PAM) fluorometry in order to assess the photosynthetic rate of the shoots. Vagile macrofauna of the leaf stratum was sampled by a hand-towed net, and the major taxonomic groups were sorted, counted, and identified. Meadow’s biometric measurements and the epiphytic biomass were also determined. Regarding edge-meadow matrix, results have shown highest differences on matrix structural parameters such as shoot density and shoot type proportions. Shoot density was found to decrease in edges considerably. We found c.a to 60 % plagiotropic shoots on edges while in continuous meadow orthotropics were predominant (up to 90 %). Howerver vagile-fauna population densities and diversity did not differ significantly among stations studied, neither by sites. Photosynthetic rate and leaf surface values also did not show changes between edges and continuous meadow. However, results did show that plagiotropic shoots had higher photosynthetic rate than orthotropics, and also that epiphyte abundance sorted out to be much higher (up to 54 %) on edges. [less ▲]

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See detail« Tellement divisez qu’il est difficile de resouldre » : l’image de la ville dans la gravure de fête à Metz (1552-1632)
De Marco, Rosa ULg

in Bourdieu, Catherine (Ed.) Signes et manifestations identitaires dans les Trois Evêchés (2016, December)

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See detailFirst Hubble Space Telescope Movies of Jupiter’s Ultraviolet Aurora During the NASA Juno Prime Mission
Grodent, Denis ULg; Gladstone, G. Randall; Clarke, John T. et al

Poster (2016, December)

The primary goal of this HST campaign is to complement Juno-UVS (Ultraviolet Spectrograph) observations. This complementarity is four-fold as HST observes Jupiter’s aurora when: 1) Juno-UVS is turned off ... [more ▼]

The primary goal of this HST campaign is to complement Juno-UVS (Ultraviolet Spectrograph) observations. This complementarity is four-fold as HST observes Jupiter’s aurora when: 1) Juno-UVS is turned off, that is about 98% of Juno’s 14-day orbit, and Juno’s in situ instruments are in operation. 2) Juno-UVS is operating, but observes the opposite hemisphere of Jupiter. 3) UVS is on in the same hemisphere, but too close to Jupiter to have a global, contextual, view of the aurora and/or UVS is affected by the noise induced by Jupiter’s radiation belts. 4) Juno is too far from Jupiter to get a detailed view of the aurora. In addition, HST will observe the auroral and airglow emissions of the Galilean moons Io, Ganymede and Europa, when UVS is measuring their auroral footprints in Jupiter’s ionosphere. During this campaign, HST is obtaining 45-min STIS time-tag images -movies- of both hemispheres of Jupiter and STIS/COS spectra of Jupiter's moons. These observations are taking place during 4 sequences of Juno's orbit (Figure: typical orbit in magnetic coordinates): 1) Perijove segment: a 6-hour sequence bracketing the time of Juno's closest approach of Jupiter. 2) Crossing segments: few hours periods during which Juno is crossing the magnetic equator of Jupiter and in situ instruments are observing the plasma sheet particles. 3) Perijove +/- 1 Jovian rotation (or more), to provide a context for the auroral activity before and after perijove. 4) Apojove segment: a 12-hour period bracketing the time when Juno is farthest from Jupiter and Juno-UVS is continuously monitoring the global auroral UV power of Jupiter. During Juno orbit PJ5, between 28 Nov. and 07 Dec. 2016, HST obtains 9 STIS movies: 3 movies of the northern aurora near perijove, 1 movie (north) one Jovian rotation before and 2 movies (south- north) one and two Jovian rotations after perijove, 2 movies (north) during two close CS crossings, and 1 movie near apojove. These movies will be commented during this presentation. [less ▲]

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See detailImmunity from execution and State enterprises
Wautelet, Patrick ULg

Conference (2016, December)

What is the status and regime of assets held by state enterprises and state agencies? Do they benefit from immunity from enforcement? This presentation attempts to uncover the present state of the law ... [more ▼]

What is the status and regime of assets held by state enterprises and state agencies? Do they benefit from immunity from enforcement? This presentation attempts to uncover the present state of the law, while insisting on the unresolved questions. [less ▲]

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See detailÉtude du degré de satisfaction de patients lombalgiques au sujet du site internet éducatif « Retrain Pain »
Demoulin, Christophe ULg; Blanc, A.; Wolfs, Sébastien ULg et al

in Revue du Rhumatisme (2016, December), 83S

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See detailNos patients cancéreux sont-ils déjà cachectiques lors de la première évéluation nutritionnelle ?
MALHERBE, Christian ULg; VERBRUGGE, Anne-Marie ULg; DE FLINES, Jenny ULg et al

Conference (2016, December)

we want to know if, during the first nutritional evaluation, our cancer patients are already cachectic or no. <in order to improve our institutional practices

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See detailEnjeux méthodologiques dans un contexte de rémission en oncologie pédiatrique: triangulation entre le médecin, sa famille et le patient
Vander Haegen, Marie ULg; Etienne, Anne-Marie ULg

in De l'expertise scientifique à l'expertise profane: Postures, enjeux et méthodes dans le champs de la psychologie de la santé (2016, December)

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See detailUn hydrogel de chitosan d’origine non-animale restaure la fonction rhéologique du fluide synovial arthrosique : étude ex vivo
Henrotin, Yves ULg; Rocasalbas, Guillem; Chausson, Mickaël et al

Poster (2016, December)

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See detailDeep Reinforcement Learning Solutions for Energy Microgrids Management
François-Lavet, Vincent ULg; Taralla, David; Ernst, Damien ULg et al

in European Workshop on Reinforcement Learning (EWRL 2016) (2016, December)

This paper addresses the problem of efficiently operating the storage devices in an electricity microgrid featuring photovoltaic (PV) panels with both short- and long-term storage capacities. The problem ... [more ▼]

This paper addresses the problem of efficiently operating the storage devices in an electricity microgrid featuring photovoltaic (PV) panels with both short- and long-term storage capacities. The problem of optimally activating the storage devices is formulated as a sequential decision making problem under uncertainty where, at every time-step, the uncertainty comes from the lack of knowledge about future electricity consumption and weather dependent PV production. This paper proposes to address this problem using deep reinforcement learning. To this purpose, a specific deep learning architecture has been designed in order to extract knowledge from past consumption and production time series as well as any available forecasts. The approach is empirically illustrated in the case of a residential customer located in Belgium. [less ▲]

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See detailMultianalytical Study of “Le Sorcier d’hiva Oa” by Gauguin
Defeyt, Catherine ULg; Remon, Regine; Strivay, David ULg

Poster (2016, December)

Although there is abundant literature on the worldwide famous French painter, Paul Gauguin, very little is known concerning his painting techniques and materials. The present research aims to throw a new ... [more ▼]

Although there is abundant literature on the worldwide famous French painter, Paul Gauguin, very little is known concerning his painting techniques and materials. The present research aims to throw a new light on Gauguin’s œuvre through the in depth study of Le Sorcier d’ Hiva Oa, painted by Gauguin during his stay in French Polynesia in 1902, by means of non-invasive imaging and analytical techniques. While the infrared reflectography examination of the painting revealed how the artist achieved his final composition, the results obtained by Raman spectroscopy and X ray fluorescence spectroscopy in punctual and mapping modes allowed identifying the different pigments he combined to obtain the bright color shades characterizing this artwork. [less ▲]

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See detailThe added value of new GNSS for ionosphere monitoring
Warnant, René ULg; Deprez, Cécile ULg

in Proceedings of Navitec 2016 (2016, December)

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See detailChangements globaux et diversité des grands prédateurs marins crétaces
Fischer, Valentin ULg

Conference (2016, December)

La diversité des grands prédateurs marins est souvent vue comme un indicateur de la santé des écosystèmes océaniques (Fröbisch et al.,  2013; Scheyer et al.,  2014; Kelley & Pyenson,  2015). Cependant ... [more ▼]

La diversité des grands prédateurs marins est souvent vue comme un indicateur de la santé des écosystèmes océaniques (Fröbisch et al.,  2013; Scheyer et al.,  2014; Kelley & Pyenson,  2015). Cependant, les moteurs, les causes des renouvellements fauniques sont souvent méconnus pour les animaux occupant les niveaux supérieurs des chaînes trophiques. Il est donc nécessaire d’identifier et de démêler les mécanismes qui dictent les fluctuations de la biodiversité fossile – y compris les multiples biais affectant ces données (ex. Benson et al.,  2010). Le Crétacé offre une occasion fantastique d’étudier cette relation, étant caractérisé par un climat globalement chaud mais variable et un assemblage diversifié de reptiles, ostéichtyens et néosélaciens qui régissaient les chaînes trophiques marines (Bardet et al.,  2014; Guinot & Cavin,  2015) et qui ont subi des perturbations majeures durant le Crétacé. L’approche choisie ici est résolument macroévolutive et exploratoire. Je combine révisions taxonomiques et analyses phylogénétiques avec des méthodes de reconstruction de la diversité (richesse taxonomique, disparité, diversité écologique) et la vitesse d’évolution dans le but de détecter et de quantifier les renouvellements majeurs des assemblages de reptiles pélagiques crétacés. Ensuite, ces variables sont confrontées aux données climatiques et une nouvelle approche pour rendre compte de la dynamique de ces fluctuations est proposée ici (voir également Fischer et al.,  2016). L’histoire des ichthyosaures et les pliosaures, les prédateurs dominants du Crétacé inférieur disparaissant « prématurément » (durant l’intervalle Cénomanien-Turonien), a été analysée au moyen de ces techniques quantitatives et montrent, contre toute attente, des trajectoires fort similaires avec un pic de diversité-disparité dans le Crétacé inférieur (de part et d’autre de l’Hauterivien) précédent des constrictions importantes de biodiversité vers l’Aptien et au Cénomanien. Les analyses indiquent que les taux d’extinctions chez les ichthyosaures se corrèlent avec l’importance des fluctuations climatiques, offrant une nouvelle perspective pour expliquer leur extinction abrupte durant le Cénomanien. [less ▲]

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See detailImportin-8 mutations could cause Jeavons Syndrome, CAE and JME by altering early neuroblast migration
Nganou, Gerry ULg; Tanaka, Miyabi; Coumans, Bernard ULg et al

Poster (2016, December)

Jeavons syndrome (JS) is an uncommon form of juvenile epilepsy. In some family affected by JS, the gene of importin-8 (IPO8) a member of karyopherin superfamily of proteins, has been found mutated ... [more ▼]

Jeavons syndrome (JS) is an uncommon form of juvenile epilepsy. In some family affected by JS, the gene of importin-8 (IPO8) a member of karyopherin superfamily of proteins, has been found mutated. Karyopherin are known to regulate nucleo-cytoplasmic transport of many proteins. IPO8, a member of the β-karyopherin sub-family, is reported to control the transport Ago-2, c-Jun and Smad-4 for example, three proteins important for brain development. Here, we show that IPO8 is well expressed in mouse brain at embryonic stage. Moreover inhibition of IPO8 mRNA by shRNA in-utéro-electroporation (IUE), impairs early neuroblast migration as weel as IUE overexpression of mutated form of human IPO8. So, abnormal brain development due to IPO8 mutations could be at the origin of Jeavons Syndrome, Chilhood abscence evolving (CAE) and/or juvenile myoclonic epilepsy (JME). [less ▲]

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See detailIntroduction to "Planned Obsolescence: Texts, Theory, Technology"
Guesse, Carole ULg; Dupont, Bruno ULg; Mingazova, Ella

Conference (2016, December)

As organizers, Bruno Dupont, Ella Mingazova and myself welcomed the participants and introduced the conference.

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See detailProperties of Jupiter’s auroral acceleration region inferred with HST-STIS spectral images
Ray, Licia C.; Arridge, Christopher S.; Gustin, Jacques et al

Poster (2016, December)

Jupiter’s dynamic auroral region is the signature of magnetosphere-ionosphere coupling. Precipitating auroral electrons are part of a current system which transports angular momentum from the planetary ... [more ▼]

Jupiter’s dynamic auroral region is the signature of magnetosphere-ionosphere coupling. Precipitating auroral electrons are part of a current system which transports angular momentum from the planetary atmosphere to sub-corotating magnetospheric plasma. The magnitude of the currents and hence precipitating energy flux, are sensitive to the characteristics of the high-latitude magnetosphere, in particular the location of the auroral acceleration region (AAR) and the density and temperature of the high-latitude electron population. We use HST STIS observations of Jupiter’s aurora (Gustin et al. [2016]) to infer the location of the AAR and the properties of the precipitating auroral electrons. To do this, we determine the energy of the precipitating electrons and incident energy flux for the two distinct regions within the main aurora and within flare regions. The resulting relationships between energy flux and electron precipitation energy for the main auroral emission are then compared to the theoretical relationship derived by Lundin & Sandahl [1978], in order to derive the location of the AAR and the temperatures and densities of the electrons at the top of the AAR prior to acceleration. We find that that each emission region is best reproduced using a multiple auroral acceleration regions with different properties, rather than a single auroral acceleration region with a varying potential drop strength. [less ▲]

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See detailLa spasticité: physiopathologie, évaluation et prise en charge
Martens, Géraldine ULg

Conference (2016, December)

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See detailImpacts socioéconomiques de la migration des chefs de ménage dans la région de Tahoua
Moussa Dit Kalamou, Mahamadou; Andres, Ludovic ULg; Yamba, Boubacar et al

Conference (2016, December)

Du fait de sa position stratégique entre l’Afrique du Nord et l’Afrique subsaharienne, le Niger est une terre d’intense mobilité par le départ et le transit de nombreux migrants dont le flux venait de ... [more ▼]

Du fait de sa position stratégique entre l’Afrique du Nord et l’Afrique subsaharienne, le Niger est une terre d’intense mobilité par le départ et le transit de nombreux migrants dont le flux venait de tous les pays de l’Afrique de l’Ouest. Le contexte géopolitique actuellement dominé par l’insécurité dans la partie Est du pays et le nord du Nigeria voisin (guerre imposée par la nébuleuse Boko Haram) ; et l’instabilité des pays frontaliers à l’Ouest (Mali) et au Nord (Libye) poussent les populations à chercher refuge en migrant massivement (plus de 60% des migrants en direction du Maghreb et l’Europe passent par le Niger selon l’Organisation Internationale pour les Migrations) et irrégulièrement vers les grandes villes minières du nord du Niger (Agadez, Arlit, Djado et Dirkou) qui sont les portes d’accès au pays de l’Afrique du Nord et ensuite à la méditerranée afin d’atteindre les pays européens. A tous ces problèmes sécuritaires, s’ajoute le problème d’insécurité alimentaire et foncière qui oblige les populations rurales comme celles de la région de Tahoua à migrer pour un exode temporaire ou saisonnier qui finira par une migration de longue durée à force de prendre goût à l’aventure. Les ruraux qui font face aux déficits cycliques imposés par le changement climatique vont à la recherche du mieux-être et du complément alimentaire des ménages. Cet article traite de l’exode qui sera considéré comme une migration locale et en même temps une initiation à la migration régionale et intercontinentale. Il ressortira les impacts socio-économiques de l’exode agissant sur les ménages dans la région de Tahoua au Niger. [less ▲]

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See detailAssociation entre taux circulants de matrix-gla protéine et rigidité artérielle en transplantation rénale.
Dinic, Miriana; Maillard, Nicolas; DELANAYE, Pierre ULg et al

Conference (2016, December)

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See detailDevelopment and comparison of liposomes and nanocapsules as injectable nanocarriers for poorly aqueous soluble drugs
Karim, Reatul ULg; Palazzo, Claudio ULg; Laloy, Julie et al

Poster (2016, December)

About 90% of drugs in development phase have poor aqueous solubility. Liposomes and nanocapsules are promising approaches that enable parenteral administration of these drugs with possibilities of site ... [more ▼]

About 90% of drugs in development phase have poor aqueous solubility. Liposomes and nanocapsules are promising approaches that enable parenteral administration of these drugs with possibilities of site specific delivery. The objective of the study was to develop different liposomes and lipid nanocapsules entrapping a hydrophobic model molecule (apigenin (AG)), and to characterize and compare them as potential injectable nanocarriers (NCs) for drugs with low aqueous solubility. [less ▲]

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See detailLaBGen-P: A Pixel-Level Stationary Background Generation Method Based on LaBGen
Laugraud, Benjamin ULg; Pierard, Sébastien ULg; Van Droogenbroeck, Marc ULg

in 2016 International Conference on Pattern Recognition Contest Proceedings (2016, December)

Estimating the stationary background of a video sequence is useful in many applications like surveillance, segmentation, compression, inpainting, privacy protection, and computational photography. To ... [more ▼]

Estimating the stationary background of a video sequence is useful in many applications like surveillance, segmentation, compression, inpainting, privacy protection, and computational photography. To perform this task, we introduce the LaBGen-P method based on the principles of LaBGen and the conclusions drawn in the corresponding paper. It combines a pixel-wise median filter and a pixel selection mechanism based on a motion detection performed by the frame difference algorithm. By working with pixels instead of patches, as originally done in LaBGen, it avoids some discontinuities between different spatial areas and generates better visual results. In this paper, we describe the LaBGen-P method, study its performance on the sequences of the SBMnet dataset, and compare it to that of LaBGen and other methods on the same dataset. Both algorithms emerged as the best ones during the IEEE Scene Background Modeling Contest (SBMC) organized in 2016. However, as there is not yet a good understanding of the recommended metrics, and due to the small amount of video sequences provided with the corresponding ground truth, we have performed a subjective evaluation. More precisely, 35 human experts were asked to compare background images estimated by LaBGen-P and LaBGen, and select the best one. From these experiments, it turns out that the results of LaBGen-P are preferred for about two thirds of the video sequences. Note that we provide an open-source C++ implementation at http://www.telecom.ulg.ac.be/labgen. [less ▲]

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See detailEtude de l’évolution de la pathologie arthrosique et des propriétés mécaniques du cartilage sur un modèle d’arthrose spontanée chez le cobaye Dunkin-Hartley
Legrand, Catherine ULg

Poster (2016, December)

Dans les modèles animaux, la gravité des lésions du cartilage est appréciée grâce à des scores histologiques évaluant la structure, le contenu en protéoglycane, l’intégrité de la tidemark, la cellularité ... [more ▼]

Dans les modèles animaux, la gravité des lésions du cartilage est appréciée grâce à des scores histologiques évaluant la structure, le contenu en protéoglycane, l’intégrité de la tidemark, la cellularité, ainsi que les ostéophytes. Parallèlement à ces analyses histologiques, nous avons étudié les propriétés mécaniques du cartilage à différents stades d’évolution de la maladie chez le cobaye Dunkin-Hartley. Nous avons également corrélé la sévérité des lésions histologiques avec les propriétés mécaniques du cartilage. [less ▲]

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See detailComment mesurer correctement la PA chez les patients hémodialysés?
VANDERWECKENE, Pauline ULg; SAINT-REMY, Annie ULg; KRZESINSKI, Jean-Marie ULg

Poster (2016, December)

Objectifs : Le contrôle de la pression artérielle (PA) chez le patient hémodialysé (HD) est un enjeu majeur en raison des résultats controversés sur les risques cardiovasculaires qui y sont associés ... [more ▼]

Objectifs : Le contrôle de la pression artérielle (PA) chez le patient hémodialysé (HD) est un enjeu majeur en raison des résultats controversés sur les risques cardiovasculaires qui y sont associés. Cependant, la mesure de la PA dans cette population est difficile à appréhender au vu de sa grande variabilité. L’exactitude des mesures péridialytiques (enregistrées dans l’unité d’HD pendant la séance) est souvent remise en question. L’objectif de notre étude est d’établir la contribution et la concordance entre deux techniques de mesure ambulatoire pour détecter la PA non contrôlée chez ces patients HD. Il s’agit du monitoring ambulatoire interdialytique de 44h (MAPA) et de l’automesure au domicile (HBPM) pendant une durée variable de 3, 5 et 7 jours. Méthodologie : 43 patients hémodialysés chroniques (H=28, F = 15), avec une moyenne de 68,3±13 ans ont réalisé une MAPA de 44h (Spacelabs 90207), de la fin d’une séance d’HD au début de la suivante, immédiatement suivie par une automesure de 7 jours (Omron M6). Les mesures péridialytiques étaient la moyenne des PA pré-dialyse ou post-dialyse enregistrées sur 2 semaines (6 séances d’HD). L’hypertension était définie par une PA égale ou supérieure à 140/90 mmHg pour la PA pré-HD, 130/80 mmHg pour la PA post-HD, 130/80 mmHg pour la MAPA de 44 h et 135/85 mmHg pour l’HBPM. Résultats : Nous avons constaté de bonnes corrélations entre la MAPA et l’HBPM pour le diagnostic de l’hypertension chez le patient HD. Comparées aux PA péridialytiques, les 2 techniques ambulatoires ont permis d’identifier la même proportion d’hypertension masquée et d’hypertension de la blouse blanche (25%). La plus grande précision de diagnostic sur le status tensionnel est retrouvée pour les plus longues périodes d’enregistrement (44h pour la MAPA et 7 jours pour l’HBPM). Les plus courtes périodes étaient mieux tolérées par les patients mais moins précises pour détecter l’hypertension. L’automesure était plus appréciée que la MAPA de 44h. Conclusion : La MAPA et l’automesure ont permis d’identifier un quart de patients avec un phénotype particulier d’hypertension, qui n’aurait pas été classé correctement en se fiant uniquement aux mesures péridialytiques. L’automesure devrait être recommandée en première ligne chez le patient HD (au moins une semaine/mois). Cependant, la MAPA fournit des informations uniques comme la PA nocturne et pourrait être proposée, idéalement une fois par an, chez tous les patients. [less ▲]

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See detailDiversity and paleobiology of Proterozoic organic-walled microfossils from Arctic Canada
Loron, Corentin ULg; Javaux, Emmanuelle ULg

in Steemans, Philippe; Gerrienne, Philippe (Eds.) Miscellanea palaeontologica 2016 (2016, December)

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See detailMachine Learning based Prediction of Internet Path Dynamics
Wassermann, Sarah ULg; Casas, Pedro; Donnet, Benoît ULg

in ACM CoNEXT Student Workshop: Irvine 12 décembre 2016 (2016, December)

We study the problem of predicting Internet path changes and path performance using traceroute and machine-learning techniques. Path changes are frequently linked to path inflation and performance ... [more ▼]

We study the problem of predicting Internet path changes and path performance using traceroute and machine-learning techniques. Path changes are frequently linked to path inflation and performance degradation. Therefore, predicting their occurrence could improve the analysis of path dynamics using traceroute. By relying on neural networks and using empirical distribution based input features, we show that we are able to predict (i) the remaining life time of a path before it actually changes, and (ii) the number of path changes in a certain time slot with relatively high accuracy. We also show that it is possible to predict path performance in terms of latency, opening the door to novel, machine-learning-based approaches for RTT prediction. [less ▲]

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See detailThe "graptolite hypothesis" or how to turn a palaeobotanical evidence into a scientific puzzle
Gerrienne, Philippe ULg; Tinn, Oive; Versteegh, Gerard et al

Conference (2016, December)

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See detailImmersive visualization of geophysical data
Cerfontaine, Philippe ULg; Mreyen, Anne-Sophie ULg; Havenith, Hans-Balder ULg

in Immersive visualization of geophysical data (2016, December)

In this application paper we’ll explain the work flow we use to create immersive visualizations and spatial interaction for geophysical data with a head mounted device (HMD). The data that we analyze ... [more ▼]

In this application paper we’ll explain the work flow we use to create immersive visualizations and spatial interaction for geophysical data with a head mounted device (HMD). The data that we analyze consists of two dimensional geographical map data and raw geophysical measurements with devices like seismometers, Electrical Resistivity Tomography (ERT) and seismic tomography profiles as well as other geophysical and geoscientific data. We show the tool chain that we use while explaining the choices that we made along the way. The technical description will be followed by a brief assessment of the added benefit of rendering our data in virtual reality (VR). After the technical description we conclude this paper with some outlook on the (likely) future use of VR in geosciences. [less ▲]

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See detailL’apport du biofeedback dans le traitement des troubles de la voix
Remacle, Angélique ULg; Boughabi, Loubna; Morsomme, Dominique ULg

in Joyeux, Nathaly; Topouzkhanian, Sylvia (Eds.) Actes des XVIèmes Rencontres internationales d’orthophonie: Orthophonie et technologies innovantes (2016, December)

It has recently become possible to monitor patients’ voices outside the speech therapist’s office with a portable, easy-to-use tool: the voice dosimeter. This tool measures voice frequency and sound ... [more ▼]

It has recently become possible to monitor patients’ voices outside the speech therapist’s office with a portable, easy-to-use tool: the voice dosimeter. This tool measures voice frequency and sound pressure level, as well as the duration of phonation, during a full day of regular activities. In addition to voice accumulation in an ecological context, the dosimeter used in this study (VoxLog, Sonvox) gives patients feedback on their voice use. In practice, the clinician configures the device so that it provides a vibratory signal in real time when the patient speaks above or below a predetermined frequency or sound pressure threshold. The feedback is intended to make patients aware of inappropriate vocal behavior and encourage them to change it. In this case study, we used biofeedback with the aim of reducing sound pressure level for a teacher suffering from vocal fold nodules. Our goal was to determine whether vibrotactile biofeedback applied in an ecological context for three consecutive weeks could reduce excess sound pressure. The feedback was activated every time the teacher spoke too loudly; its purpose was to help her avoid vocal abuse and (re)learn healthy vocal behaviors. This preliminary study generated encouraging results regarding the use of biofeedback in voice treatment. Nevertheless, it is important to investigate how this tool can best be implemented for patient management in speech language pathology. In addition, the method should be validated with randomized studies using a larger sample. [less ▲]

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See detailA Rhynie Chert plant out of the Rhynie Chert
Cascales-Miñana, Borja ULg; Gerrienne, Philippe ULg

Conference (2016, December)

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See detailThe Martian diffuse aurora: Monte Carlo simulations and comparison with IUVS-MAVEN observations
Gérard, Jean-Claude ULg; Soret, Lauriane ULg; Schneider, N. et al

Conference (2016, December)

A new type of Martian aurora, characterized by an extended spatial distribution, an altitude lower than the discrete aurora and electron precipitation up to 200 keV has been observed following solar ... [more ▼]

A new type of Martian aurora, characterized by an extended spatial distribution, an altitude lower than the discrete aurora and electron precipitation up to 200 keV has been observed following solar activity on several occasions with the IUVS on board the MAVEN spacecraft. We describe the results of Monte Carlo simulations of the production of several ultraviolet and visible auroral emissions for initial electron energies from 0.1 to 200 keV. These include the CO2+ ultraviolet doublet (UVD) at 288.3 and 289.6 nm and the Fox–Duffendack–Barker (FDB) bands, CO Cameron and Fourth Positive bands, OI 130.4 and 297.2 nm and CI 156.1 nm and 165.7 nm multiplets. We calculate the nadir and limb intensities of several of these emissions for a unit precipitated energy flux. Our results indicate that electrons in the range 100-200 keV produce maximum CO2+ UVD emission near 75 km. We combine SWEA and SEP electron energy spectra measured during diffuse aurora to calculate the volume emission rates and compare with IUVS observations of the emission limb profiles. The strongest predicted emissions are the CO2+ FDB, UVD and the CO Cameron bands. The metastable a 3Π state which radiates the Cameron bands is deactivated by collisions below ~110 km. As a consequence, we show that the CO2+ UVD to the Cameron bands ratio increases at low altitude in the energetic diffuse aurora. [less ▲]

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See detailRelationships between environmental parameters and the microbenthic loop of Posidonia oceanica meadows at small spatial scale
Pete, Dorothée ULg; Alvera Azcarate, Aida ULg; Gobert, Sylvie ULg

in Zoology 2016: 23rd Congress of Zoology (2016, December)

In these times of global change, understanding how carbon flows through ecosystems is of primary importance. In coastal Mediterranean regions, Posidonia oceanica meadows produce and store a lot of carbon ... [more ▼]

In these times of global change, understanding how carbon flows through ecosystems is of primary importance. In coastal Mediterranean regions, Posidonia oceanica meadows produce and store a lot of carbon, but most of it is described as refractory. As a step in the understanding of how organic matter degradation/storage happens in this ecosystem, this study focus on small scale relationships between the microbenthic loop (organic matter, microphytobenthos, bacteria and meiofauna) and environmental parameters (grain size, P. oceanica density, vegetal fibre biomass, pore water nutrient content, sediment total carbon (TC), organic carbon (TOC), nitrogen (TN) and phosphorous (TP) contents, phaeopigments and bacterial production (FDC)). Thus, a 1.25 m x 1.25 m frame was put in a pristine P. oceanica meadow and twelve points were randomly sampled in May 2008 for all the studied parameters. At such a small scale, every component of the microbenthic loop presented a heterogeneity, which was the highest for the microphytobenthos biomass and the lowest for total meiofauna abundance (TMA). No relationship was found between the components of the microbenthic loop but the abundances of Turbellaria and Ciliophora were correlated with total organic matter in the sediment (TOM). None of the environmental parameter was linked with the microphytobenthos biomass, suggesting that the high spatial variability observed did not depend on the measured parameters. Relationships were found between TOM and ammonium, total bacteria abundance and biomass (TBA and TBB) and sediment phaeopigments, TMA and TC, TN and TP. TBB variability was however explained by a combination of FDC and nutrient contents in pore water and sediment. Taking the microbenthic loop as a whole, pore water ammonium and nitrites + nitrates, FDC and phaeopigments were able to explain the observed variability. So, at small scale the variability in the microbenthic loop of a P. oceanica meadow is related with parameters linked with degradation processes and bacteria activities (phaeopigments, FDC, ammonium, nitrites + nitrates), except for meiofauna, which is related with the nutrient content of the sediment, especially TC. Those results underline the importance of the relationship between the microbenthic loop and degradation processes, even at a small scale. [less ▲]

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See detailMobility of 137Cs, 10Be and 210Pb in soil as a function of the soil texture, organic matter content and pH
de Tombeur, Félix ULg; Cornu, Sophie; Bourlès, Didier et al

Poster (2016, November 30)

Vertical matter transfer processes (bioturbation and <2μm translocation) in soils and their dynamics are up to now poorly constrained although they are responsible for the temporal evolution of the ... [more ▼]

Vertical matter transfer processes (bioturbation and <2μm translocation) in soils and their dynamics are up to now poorly constrained although they are responsible for the temporal evolution of the ecosystem services. In order to better constrain and quantify these processes, a kinetic quantification of the involved transfers based on vertical profiles of 210Pb (xs), 10Be and 137Cs has been developed for Luvisols in which soluble transfers could be neglected. The range of applicability of this type of approach was nevertheless not tested. In this work, we analyzed 210Pb (xs), 10Be and 137Cs in soils exhibiting gradients of organic matter, pH and < 2 μm fraction (Podzol, Andosol Ferralsol, Leptosol). Acidic soils and large organic matter contents were considered. The depth distribution of the studied isotopes was then interpreted as a function of the organic matter content, the soil pH and its < 2 μm fraction. This demonstrates that 10Be and 137Cs losses occur under soluble form in the Podzol, especially under forest, more acid, for the latter. Soluble 10Be transfers were also identified in the Andosol when they were considered as negligible in the Leptosol. For 210Pb (xs), soluble transfers are also probable for soils with pH less than 5.5 (Andosol and Ferralsol) and strong affinity for organic matter has been demonstrated. Thus, under acidic conditions and low < 2 μm fraction, soluble transfer cannot neglected anymore. [less ▲]

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See detailThe influence of specific training on the plyometric profile
Jidovtseff, Boris ULg; Harris, Nigel; Carpent, Nicolas et al

Poster (2016, November 30)

Sprinting, jumping and change of direction involve the stretch-shorten cycle (SSC) and therefore plyometric training is used to improve these factors. It has been demonstrated that the jumping strategy ... [more ▼]

Sprinting, jumping and change of direction involve the stretch-shorten cycle (SSC) and therefore plyometric training is used to improve these factors. It has been demonstrated that the jumping strategy utilized can influence the biomechanical profile of the exercise and subsequent adaptation. For example, in some cases, it is important to jump as high as possible while in other cases it is important to reduce the ground contact time. Our hypothesis is that the choice of plyometric exercise has to be matched to the desired biomechanical adaptation. Hence we investigated the influence of 8 weeks of different programs on the plyometric profile of recreational athletes. In each of five groups, very specific exercises were selected according to the training objective: ground contact time group (CT, n=9); vertical jump height group (JH, n=9); CT and JH combination group (CT-JH, n=11); JH + strength training group (JH-S, n=9); and control group (CO, n=8). The plyometric profile performed prior to and post training included measures of jump height, contact time, stiffness and reactivity at different bounding intensities. The results demonstrated that JH and JH-S programs were more effective for improving jump height performance (+7-9%; p<0.005) compared to insignificant jump height changes in the CT and CO groups. CT-JH was the most effective on the reactivity index (+14%, p<0.005) although significant increases (+8%, p<0.05) were also observed in CT, JH and JH-S groups. CT was the only group to significantly decrease short contact time (-5%, p<0.05). ANOVA analysis revealed significant groups*session effect for jump height (p<0.01) and reactivity (p<0.005) but not for short contact time. The present study confirms that the principle of specificity is fundamental in plyometric training so the exercise selection should be developed cognizant of intended adaptations. Jump height and reactivity appear to be differentially affected by specific training practices. [less ▲]

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See detailForce-Velocity-Power Profiles in Elite Young Soccer Players
Miny, Kevin ULg; Jidovtseff, Boris ULg

Poster (2016, November 30)

The main purpose of this research was to assess the isoinertial Force-Velocity-Power (F-V-P) profile in young elite soccer players. Furthermore, this research aims to compare force, velocity and power ... [more ▼]

The main purpose of this research was to assess the isoinertial Force-Velocity-Power (F-V-P) profile in young elite soccer players. Furthermore, this research aims to compare force, velocity and power qualities among different age categories (under (U) 17, U19 & U21). The ultimate objective is to better understand the relationships between neuromuscular system and functional performance. [less ▲]

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See detailInvolvement of Ikbζ in glioblastomas and its potential implication in radioresistance
Dubois, Nadège ULg; Willems, Marie; Kroonen, Jérôme et al

Poster (2016, November 29)

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See detailThe influence of isoinertial-pneumatic ratio on force-velocity-power relationships
Jidovtseff, Boris ULg; Avrillon, Simon; Hug, François et al

Conference (2016, November 29)

Introduction: Isoinertial contractions are effective to generate maximal force during the initiation of the movement whereas they do not provide an appropriate training stimulus to generate force once ... [more ▼]

Introduction: Isoinertial contractions are effective to generate maximal force during the initiation of the movement whereas they do not provide an appropriate training stimulus to generate force once accelerative phase has been developed (1). Pneumatic resistance is one alternative that has been developed to overcome the aforementioned limitations associated with isoinertial contractions. This technique allow higher initial velocity and reduce the decrease of force towards the end of the concentric phase (1). There is some training interest by combining isoinertial and pneumatic loading. The aim of this study was to determine how different isoinertial-pneumatic ratio influence the force-velocity-power relationships during bench-press. Methods: Fifteen participants performed bench press at 30%, 45%, 60%, 75%, and 90% of their 1RM, with five isoinertial(I)-pneumatic(P) resistance ratio : 100%I/0%P, 75%I/25%P, 50%I/50%P, 25%I/75%P, and 0%I/100%P. Velocity, force and power were assessed using a linear transducer and mechanical parameters measured by the pneumatic ergometer. Force-, velocity- and power-time patterns were averaged over the push-off phase to build the corresponding force-velocity and power-velocity relationships for each resistance ratio. Results: The increase in pneumatic part in resistance ratio elicited higher movement velocity and lower force level from 0% to 80% of the concentric phase. The increase in isoinertial part in resistance balance resulted in higher velocity towards the end of the movement. As a consequence, the use of isoinertial resistance oriented the force-velocity relationship towards force, whereas pneumatic resistance elicited a more velocity-oriented profile. Conclusion: Pneumatic-oriented resistance could be used to develop initial velocity and force towards the end of the push-off. Isoinertial-oriented resistance should be used to develop maximal force and maximal power. Resistance modality could be modulated according to training objectives. Références : 1. Frost et al. A comparison of the kinematics, kinetics and muscle activity between pneumatic and free weight resistance. Eur J Appl Physiol. 2008;104:937-56. [less ▲]

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See detailAnalytical Challenges in the Study of South-North Intra-EU Mobility
Lafleur, Jean-Michel ULg; Stanek, Mikolaj

Conference (2016, November 29)

This presentation discusses the challenges met in measuring the flows of Southern European EU migrants who moved to North Western Europe during the financial and economic crisis that started in 2008. The ... [more ▼]

This presentation discusses the challenges met in measuring the flows of Southern European EU migrants who moved to North Western Europe during the financial and economic crisis that started in 2008. The presentation shows that EU wide and national databases have strenghts and weaknesses and that further improvement in statistical data collection process could help the understanding of complex migratory patterns. More details is available on this research by downloading the free e-bbok at the following address: http://www.springer.com/gp/book/9783319397610 [less ▲]

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See detailAliments et alimentation dans les sources documentaires coptes : quatre exemples (VIe-VIIIe siècles)
Carlig, Nathan ULg

Conference (2016, November 29)

Study of four Coptic documents on papyrus and ostracon from the sanctuary of St. Colluthus at Antinoopolis and from the Theban Tomb 29, in order to highlight the type of food and their context of use in ... [more ▼]

Study of four Coptic documents on papyrus and ostracon from the sanctuary of St. Colluthus at Antinoopolis and from the Theban Tomb 29, in order to highlight the type of food and their context of use in Byzantine and Early Arab Egypt. [less ▲]

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See detailLa zircone en prothèse dentaire et implantaire
MAINJOT, Amélie ULg

Conference (2016, November 28)

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See detailInterfacial and foaming properties of five commercial dairy products and two types of proteose-peptone fractions
Ripollés, D.; Parrón, J.A.; Petrut, R. et al

Poster (2016, November 28)

Functional properties of surfactants contained in dairy products, like emulsifying, foaming and wetting properties, result from their capacity to reduce the surface tension by adsorption and formation of ... [more ▼]

Functional properties of surfactants contained in dairy products, like emulsifying, foaming and wetting properties, result from their capacity to reduce the surface tension by adsorption and formation of cohesive films at the interface. A wide variety of techniques have been developed to determine surface tension, but those that give dynamic measurements, rather than equilibrium measurements of surface tension, are more suitable to study functional properties. Furthermore, the surface activity of surfactants depends on the mechanical properties of the films that are formed at the interface, which are strongly influenced by the intramolecular interactions established. The aim of this study was to investigate the kinetics of adsorption, mechanical properties of monolayer films and foaming properties of five different commercial dairy products (whey protein concentrate (WPC), buttermilk, butter serum and two skimmed milks) and two proteose-peptone fractions. [less ▲]

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See detailViral glycoprotein gp150 promotes sexual transmission of Murid Herpesvirus-4
Zeippen, Caroline ULg; Javaux, Justine ULg; Xiao, Xue ULg et al

Poster (2016, November 28)

Gammaherpesviruses are important pathogens in human and veterinary medicine. During co-evolution with their hosts, they developed many strategies allowing them to shed infectious particles in presence of ... [more ▼]

Gammaherpesviruses are important pathogens in human and veterinary medicine. During co-evolution with their hosts, they developed many strategies allowing them to shed infectious particles in presence of immune response. Understanding these strategies is likely to be important to control infection. Interestingly, we recently observed that Murid herpesvirus 4 (MuHV-4), a gammaherpesvirus infecting laboratory mice, could be sexually transmitted between mice. This model offers therefore the opportunity to understand the mechanisms underlying natural transmission. Some of these mechanisms could rely on the glycoprotein 150 (gp150), which could limit virus neutralization and promote the release of infectious particles from cells. In this study, we tested therefore the importance of gp150 in the context of MuHV-4 sexual transmission. Briefly, female mice were infected with WT or gp150- strains expressing luciferase. They were imaged with an in vivo imaging system to follow infection. When lytic replication was observed in the genital tract, infected females were mated with naïve males to compare the capacity of transmission of the two strains. Our results show that, while the gp150- strain has no deficit in reaching and replicating in the female genital tract, it displays a major deficit of sexual transmission in comparison with WT virions. Interestingly, this deficit appears to reflect a deficit of virions release from vaginal epithelial cells. Altogether, our results show that, while gp150 is not required for efficient dissemination and maintenance of MuHV-4 within its host, it is essential for efficient transmission, by promoting the releasing of infectious particles from the mucosal cells. [less ▲]

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See detailLa Perspective Temporelle Equilibrée: Validation d’un questionnaire et relation avec la régulation émotionnelle.
Barsics, Catherine ULg; Rebetez, Marie My Lien; Rochat, Lucien et al

Poster (2016, November 26)

La Perspective Temporelle Equilibrée fait référence à une disposition individuelle caractérisée par le fait de se projeter mentalement dans le futur et dans le passé de manière positive et fréquente ... [more ▼]

La Perspective Temporelle Equilibrée fait référence à une disposition individuelle caractérisée par le fait de se projeter mentalement dans le futur et dans le passé de manière positive et fréquente. L’objectif de notre étude était de valider la version française d’une échelle, initialement conçue en anglais, évaluant cette orientation temporelle : la “Balanced Time Perspective Scale” (Webster, 2011). Une étude en ligne a permis de recueillir les données de 622 participants francophones issus de la population générale. Les résultats indiquent que la version française réplique la structure en deux facteurs du questionnaire original et plaident en faveur d’une bonne validité de construit. De surcroît, les résultats montrent qu’une tendance importante à se projeter mentalement dans le futur et dans le passé de manière positive et fréquente est associée à la réévaluation cognitive, une stratégie de régulation émotionnelle. En somme, ce questionnaire permet d’évaluer la perspective temporelle, qui est ici envisagée en tant qu’importante ressource pour le self, et ce, en étroite relation avec les capacités de régulation émotionnelle. [less ▲]

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See detailL'activation comportementale est-elle pertinente pour tous les adultes dépressifs ? Une analyse en clusters
Wagener, Aurélie ULg; Baeyens, Céline; Van der Linden, Martial ULg et al

Poster (2016, November 26)

INTRODUCTION : L’hétérogénéité de la dépression est de plus en plus mise en évidence en termes de profils de symptômes, de réponse au traitement, etc. Les théories comportementales de la dépression ... [more ▼]

INTRODUCTION : L’hétérogénéité de la dépression est de plus en plus mise en évidence en termes de profils de symptômes, de réponse au traitement, etc. Les théories comportementales de la dépression soulignent l’importance de l’inactivité ainsi que des faibles niveaux de plaisir et de fréquence d’activités plaisantes dans le maintien de la dépression. Cette étude poursuit deux objectifs : (1) investiguer l’hétérogénéité de la depression via une analyse en clusters, (2) investiguer les valeurs prédictives de l’inactivité ainsi que des faibles niveaux de plaisir et de fréquence d’activités plaisantes sur la dépression en fonction du cluster d’appartenance. METHODE : Des adultes tout venant et/ou consultant des centres de santé mentale ont été recrutés (âge entre 18 et 60 ans). Ils ont complété l’Inventaire de Dépression de Beck – Seconde Edition, l’Echelle d’Activation Comportementale pour la Dépression – Version courte, et l’Inventaire des événements plaisants. RESULTATS : Une solution en six clusters a été mise en évidence : “gros dormeurs/heavy sleepers”, “dépressifs cognitifs/cognitive depressives”, “dépressifs affectifs-somatiques/affective-somatic depressives”, “dépressifs légers/mild depressives”, “dépressifs dormant peu/sleepless depressives”, “dépressifs typiques/typical depressives”. Des relations significatives entre inactivité, fréquence d’activités plaisantes et dépression ont seulement été observées chez les “dépressifs cognitifs/cognitive depressives”, les “dépressifs légers/mild depressives” et les “dépressifs typiques/typical depressives”. DISCUSSION : Les résultats confirment l’hétérogénéité de la dépression puisque six clusters ont été mis en évidence. Par ailleurs, l’activation comportementale ne semble pertinente que pour trois de ces clusters dans lesquels les postulats du modèle comportemental de la dépression sont confirmés (“dépressifs cognitifs/cognitive depressives”, “dépressifs légers/mild depressives”, “dépressifs typiques/typical depressives”). [less ▲]

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See detailLa médecine générale en mutation : perspectives sociologiques
Slomian, Cynthia ULg

Conference (2016, November 26)

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See detailReturn to play after injection of PRP to treat tendinopathies
Kaux, Jean-François ULg

Conference (2016, November 26)

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See detailLes nouveaux céramiques hybrides usinables : vont-ils révolutionner notre pratique ?
MAINJOT, Amélie ULg

Conference (2016, November 26)

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See detailCaryl Phillips's Jazzy Prose: The Nature of Blood
Mascoli, Giulia ULg

Conference (2016, November 25)

Caryl Phillips's oeuvre has a social and political agenda: to give a voice to those who were forgotten by history and to make their story resonate through time and space. The musicalization of his writing ... [more ▼]

Caryl Phillips's oeuvre has a social and political agenda: to give a voice to those who were forgotten by history and to make their story resonate through time and space. The musicalization of his writing seems to be a way to achieve this ambitious goal. My paper will be devoted to Phillips’s novel The Nature of Blood, in which music is present both thematically (with an explicit reference to Louis Armstrong and scenes of dancing) and formally. I will mostly explore the formal aspect by addressing the techniques with which Phillips musicalizes his literary text. In order to do so, I will rely upon Emily Petermann’s The Musical Novel: Imitation of Musical Structure, Performance, and Reception in Contemporary Fiction [2014]. In this monograph, she defines three different ways of imitating jazz music: sonic effects in prose (alliteration, rhyme, meter), structural patterns (the riff, the Call-and-Response pattern, chorus) and the performance situation (imitating orality, improvisation, use of repeated lexical items). All these features are present in Phillips’s novel. [less ▲]

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See detailMise en débat du marxisme et enjeux rhétoriques dans les textes de présentation des revues intellectuelles de l’immédiat après-guerre
Franck, Thomas ULg

Conference (2016, November 25)

À la suite d’une analyse de la mise en débat du marxisme au sein des revues intellectuelles de l’immédiat après-guerre et d’une étude de la trajectoire idéologique d’un intellectuel particulier, Gérard ... [more ▼]

À la suite d’une analyse de la mise en débat du marxisme au sein des revues intellectuelles de l’immédiat après-guerre et d’une étude de la trajectoire idéologique d’un intellectuel particulier, Gérard Genette, au sein de l’espace des revues militantes, cette communication analyse le cas particulier de la revue Socialisme ou barbarie dans une double perspective d’analyse du discours et de philosophie politique. Notre hypothèse serait la suivante : les revues favoriseraient, par leur matérialité discursive et éditoriale, l’émergence de débats idéologiques plus ou moins polémiques et oppositionnels autour du marxisme. En replaçant la création de ces revues dans leur contexte socio-discursif, nous entendons interroger la manière dont les textes de présentation singularisent, tout en les reproduisant, un interdiscours et une socialité bien précis. Si l’étude des articles parus dans Les Temps Modernes et Critique de mai à décembre 1946 a pu mettre en relation une obsession discursive quant aux marxismes orthodoxes et hétérodoxes et à la montée historique du P.C.F., le contexte de création de Socialisme ou barbarie (1949) nous obligera à tenir compte d’événements politiques et culturels divers (Guerre froide, constitution des deux Allemagnes, création de la revue La Table ronde, parution d’articles consacrés aux évolutions politiques et idéologiques dans Les Temps Modernes, Critique et Esprit, Traité de Londres, création de la République Populaire de Chine, centenaire du Manifeste du parti communiste, etc.). Notre communication se concentrera plus particulièrement sur le texte de présentation de la revue dans ce qu’il dit d’une historicité discursive et idéologique précise. Les textes de positionnement et de repositionnement des revues permettent en effet de dégager un ensemble d’enjeux et de tensions à l’oeuvre au sein de la communauté intellectuelle. Leur caractère plus ou moins affirmatif, parfois à la limite du pamphlétaire, entraîne une série de traits rhétoriques significatifs (attaques ad hominem, questions rhétoriques, allo-attributions, registre polémique, vocabulaire de l’attaque-défense, ironie, etc.), traduisant des positions idéologiques, qu’il sera nécessaire d’analyser dans le premier texte de la revue de Castoriadis et Lefort. L’attention portée aux thématiques marxistes se justifie par la véritable croissance des discours à ce propos dans l’immédiat après-guerre et par le besoin réel qu’éprouvent les intellectuels français de se positionner par rapport au P.C.F. et aux autres mouvances marxistes. Un rapport particulier se crée dès lors entre le savoir et une certaine temporalité que le genre de la revue met en oeuvre au travers de son éclatement et de sa périodicité. En effet, par la transmission d’un état des travaux non abouti et par l’urgence de sa situation sociale, il permet de saisir sur le vif un savoir en cours d’élaboration, constituant ainsi une forme de « mémoire immédiate » faisant état d’une histoire des idées collectives. Le rythme des publications, les stratégies de positionnement idéologique, la circulation des concepts et la nécessité de répondre aux besoins des lecteurs rendent ces savoirs intrinsèquement dynamiques et critiques, dans une constante interaction entre le monde social et les idées qui le façonnent. Comme le note Yves Peyré, dans Les Revues littéraires au XXe siècle, on trouve, d’une part, un « acte militant à la racine même de la revue » et, d’autre part, la réponse à un besoin de mettre en scène, par une polyphonie de voix, un dialogue agissant sur la réalité sociale et se construisant par le profit de débats, de dissonances et de dissensions internes et externes. [less ▲]

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See detailSommeil, éveil et cognition au cours du temps
Vandewalle, Gilles ULg

in Bulletin de la Société Royale des Sciences de Liège (2016, November 25)

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See detailAN IN-SILICO MODEL OF BMP-2 CARRIER DEVICE FOR BONE TISSUE ENGINEERING APPLICATION
Manhas, Varun ULg; Carlier, Aurelie; Geris, Liesbet ULg

Poster (2016, November 25)

Detailed reference viewed: 23 (2 ULg)
See detailLa communauté politique à l'épreuve de la responsabilité
Servais, Christine ULg

Conference (2016, November 25)

Il s’agit dans cette communication de proposer un modèle pour analyser la manière dont l’espace public est structuré par l’énonciation journalistique en partant de la question de la responsabilité.

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See detailDétourner les jeux vidéo : une nouvelle forme de jeu ?
Barnabé, Fanny ULg

Conference (2016, November 25)

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See detailWhat can a diagnosis do? The case of the "genetization" of autism
Thoreau, François ULg; Duysens, Fanny ULg

Conference (2016, November 25)

The loose condition of "autism" is undergoing through a broad process of (re)definition under the aegis of genomic medicine, which promises to find (epi)genetic causes to autism, or at least to some forms ... [more ▼]

The loose condition of "autism" is undergoing through a broad process of (re)definition under the aegis of genomic medicine, which promises to find (epi)genetic causes to autism, or at least to some forms of the Autism Spectrum Disorder. What is at stake is a scientific controversy about the very definition of the condition, i.e. the diagnosis itself. Whether it is considered primarily as a psychopathology or as a genetic disorder has consequences. It has implications regarding who would have the authority to diagnose the condition but also about the ways of taking care of persons with autism. In this paper, we depart from the paradox that some patients' organizations claim for a "geneticization" of the condition, so as to get rid of any sort of "psy-" related dimensions. It seems paradoxical because if the causes of autism are to be found in the genes, and hereby partly determined, it would seem to imply that the margins for effective therapy are narrowing down. We want to test the hypothesis that the more objective, "naturalized" a diagnosis is, the more it opens up possibilities for broadening the therapeutic reach outside the autist bodies, questioning the "milieu" of the disorder — the environment through which it is produced and the wealth of linkages and relationships through which living with autism could be eased. In other words, stressing that the diagnosis is a site to explore these contested dimensions of autism, its "geneticization" could lead to more active uptakes in patients care, whereas blurry diagnosis could not afford a similar reach. Following a pragmatic stance of an "art of consequences" (I. Stengers), we investigate the tensions raised by a genetic diagnosis which tends to "objectify" or "naturalize" the causes of the condition with respect to the lived experiences of persones with autism and their relatives, following some of the contested dimensions of a "politics of diagnosis" in their effects on affected autistic bodies and minds. To unfold those issues, our ongoing inquiry considers the interactions between various persons and institutions involved in the debate in Belgium. [less ▲]

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See detailUncertainties in determination of fire resistance by experimental testing and by calculation
Dumont, Fabien ULg; Gernay, Thomas ULg; Franssen, Jean-Marc ULg

Conference (2016, November 24)

In Europe, certification of the fire resistance of building construction elements can be assessed by experimental testing or by calculation. To date, both communities (testing and calculation) express the ... [more ▼]

In Europe, certification of the fire resistance of building construction elements can be assessed by experimental testing or by calculation. To date, both communities (testing and calculation) express the fire resistance results in a deterministic way, i.e. each fire resistance result consists in a single number as if there was no uncertainty. However, when asking different partners within a community to assess the fire resistance of a given element of building construction subjected to a given fire scenario (a so-called “round robin” exercise), the reported results exhibit a very significant variability. Recent efforts have been undertaken to evaluate the extent of the scatter for fire resistance results, i.e. a process of "uncertainty evaluation". This process recognizes the fact that, for a given element of building construction and a given fire scenario, only a probability distribution (as opposite to a deterministic value) can be attributed to the fire resistance result. This approach opens the door to probabilistic reporting as an alternative to deterministic one. [less ▲]

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