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See detailUsage de la voix par les enseignants du premier degré et prévention de leurs troubles vocaux
Garnier, Maëva; Gerber, Silvain; Pétillon, Caroline et al

Scientific conference (2016, June 02)

Contexte : Les enseignants sont nombreux à ressentir une fatigue vocale ou des troubles de la voix (maux de gorge, enrouement, extinction de voix). Les femmes, en particulier celles enseignant en primaire ... [more ▼]

Contexte : Les enseignants sont nombreux à ressentir une fatigue vocale ou des troubles de la voix (maux de gorge, enrouement, extinction de voix). Les femmes, en particulier celles enseignant en primaire et maternelle, sont les plus touchées. Leurs problèmes vocaux apparaissent généralement durant leurs premières années d’expérience, et peuvent dans certains cas devenir chroniques et mener à des lésions sur les cordes vocales comme les nodules. Jusqu’à présent, peu d’enseignants bénéficient d’une formation vocale avant le début de leur carrière. Lorsque des conseils de préventions sont donnés, ceux-ci consistent le plus souvent en recommandations d’hygiène vocale et en techniques vocales de base (relaxation, respiration, posture, recherche de résonance) dont l’applicabilité en situation réelle d’enseignement n’est pas toujours évidente. Objectifs : En collaboration avec la MGEN et l’académie de Grenoble, nous avons mené une étude longitudinale sur 22 enseignantes en classes maternelles et primaires, avec quatre principaux objectifs : 1) Mettre au point un programme de prévention plus pratique que théorique, apprenant aux enseignantes à mieux gérer leur voix au cours d’ateliers et de jeux de rôles simulant des situations types d’une journée d’enseignement en primaire-maternelle. 2) Examiner l’applicabilité, en situation réelle d’enseignement, de ces conseils de prévention et leur efficacité, en terme d’évolution de la fatigue vocale au cours d’une journée de travail et au cours de l’année. 3) Explorer plus en détails les usages vocaux, les situations pédagogiques et les différentes contraintes rencontrées par les enseignants du 1er degré au cours de leurs journées de travail 4) Mettre au point un nouveau programme de formation vocale plus spécifiquement adapté aux contraintes et situations vécues par les enseignants du 1er degré, et permettant par conséquent une meilleure applicabilité des conseils en situation réelle d’enseignement. Méthode : La moitié des participantes a bénéficié d’une journée de formation en Octobre 2013 dispensée par la phoniatre Jocelyne Sarfati (groupe « test »), tandis que l’autre moitié n’a suivi aucune formation (groupe « contrôle »). Sur les 5 mois suivant la formation, l’ensemble des participantes des deux groupes ont été suivies au cours de 3 rendez-vous (début octobre, mi-décembre, début février) où nous sommes allées les enregistrer à leur école, pendant toute leur journée d’enseignement. Nous leur avons fourni un microphone serre-tête (Shure WH20TQG) et un mini-enregistreur portable (Zoom H1) de façon à enregistrer leur voix. Nous leur avons également fourni une caméra, placée en fond de classe, de façon à filmer leur comportement, posture et déplacements pendant 1 heure de la journée qu’elles jugeaient particulièrement difficile à gérer vocalement. En complément de ces enregistrements in situ, nous les avons également enregistrées le matin et le soir, avant et après leur journée de travail, sur un court protocole (voyelles tenues, lecture d’un texte) et leur avons demandé de remplir un questionnaire d’auto-évaluation de leur fatigue vocale (type Voice Handicap Index). Résultats : Les analyses des questionnaires et vidéos ont montré que les participantes à la journée de formation appliquaient la plupart des conseils en situation de classe (postures, évitement des situations d’effort vocal, etc.). Des mesures objectives ont également montré qu’au cours de l’année, le débit de parole est moins élevé et les pauses sont plus nombreuses chez les enseignants ayant reçu le programme de prévention que dans le groupe test. Les réponses aux questionnaires ont également montré que la fréquence des plaintes était moins élevée pour le groupe ayant participé à la journée de prévention, particulièrement dans des situations ou des lieux requérant un usage intensif de la voix, comme les grands espaces (couloirs, cour de récréation ou gymnases). Enfin, l’analyse des descripteurs acoustiques (intensité, hauteur, stabilité, quantité d’air sur la voix) a montré une légère dégradation de la voix au cours de l’année, moins marquée chez les enseignantes qui avaient suivi la formation. Par ailleurs, nous avons pu observer que l’usage de la voix à intensité élevée était très fréquemment relié à des situations de gestion de classe (réduction du bruit de fond, rappel à l’ordre, …). Conclusions : Ce programme de prévention, combinant des méthodes directes et indirectes, semble donc déjà avoir un impact positif sur la fatigue vocale et engendrer des habitudes et comportements favorables à la santé vocale. Cependant, il semble utile de continuer à développer des programmes de prévention en relation plus étroite avec les méthodes pédagogiques et de gestion de classe, pour faciliter l’application des conseils de prévention. [less ▲]

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See detailParatextual elements in a papyrus archive from Deir el-Medina. Exploring a marginal scribal practice across genres and time
Polis, Stéphane ULg

Conference (2016, June 02)

The aim of this paper is to describe the variety of paratextual elements encountered in the so-called ‘Chester Beatty’ papyrus archive coming from Deir el-Medina (Western Thebes; New Kingdom). Originally ... [more ▼]

The aim of this paper is to describe the variety of paratextual elements encountered in the so-called ‘Chester Beatty’ papyrus archive coming from Deir el-Medina (Western Thebes; New Kingdom). Originally, this archive consisted of over 45 different manuscripts, which passed into various hands among the Necropolis workmen of the New Kingdom during a period of more than 100 years (Černý 1945; Koenig 1981; Pestman 1982; Grandet 2002) and is now scattered among collections and museums around the world (Cairo, Dublin, Geneva, London, Oxford).After some considerations on the history of this archive — from Antiquity until its eventful discovery, both in situ within the village of Deir el-Medina and on the antiquity market between 1928 and 1935 (Posener, in Černý 1978: VI-VII) — this talk will be devoted to the formal description and functional categorization of the paratextual elements encountered in the texts of the archive. This corpus has been selected in order to limit the amount of variation possibly induced by different mediums (the texts are all written on papyrus) and by heterogeneous socio-cultural settings. On the other hand, it allows me to explore a great variety of paratextual elements used by this community across time (from the 19th dynasty until the second part of the 20th dynasty) and genres. [less ▲]

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See detailStructural and physicochemical characterization of Sphenostylis stenocarpa (Hochst. ex A. Rich.) Harms tuber starch
Malumba Kamba, Paul ULg; Bungu Mulombo, Denis; Katanga Kabalevi, Joseph et al

in Food Chemistry (2016), (212), 305-312

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See detailRebooting Wonder Woman and You're Not DC Comics: Gender and the History of Comics in Ron Regé, Jr.'s Diana
Crucifix, Benoît ULg

Conference (2016, June 02)

With its long serial history and in its various reboots, Wonder Woman has successively and/or simultaneously functioned as a super-heroic icon for feminism and as a sex symbol objectified by the “male ... [more ▼]

With its long serial history and in its various reboots, Wonder Woman has successively and/or simultaneously functioned as a super-heroic icon for feminism and as a sex symbol objectified by the “male gaze.” Her body has always been a site of contention for the complicated place of women within comics culture, and her story is not only that of DC to tell, but also that of her fans, readers, and cartoonists, who have been writing their own versions of the character. This paper zooms in on one particular instance that not only revisits the story of the character, but also its history as a cultural object. Ron Regé, Jr.'s self-published Diana is an adaptation of Marston and Peter's 1943-1944 newspaper strips retelling Wonder Woman's origin story in a highly respectful homage to its creators. Regé's Diana reads as an explicit attempt to reclaim attention for the original comics of Marston and Peter as well as the biographies of their creators: the inside covers sum up Marston's life as a psychiatrist, feminist and polyamorist, and further posits Wonder Woman as a feminist superhero that needs to be reinvigorated today. Redrawing the origin story of Wonder Woman both as fictional character and cultural object becomes for Regé an act of dissent from DC Comics's New 52 reboot and its ‘counter-feminist’ revision of the character's origin story. This act simultaneously tunes in with a sudden public attention in 2014 for the historical origins of Wonder Woman and its feminist genealogies, most notably through the success of Jill Lepore's The Secret History of Wonder Woman. By drawing from the serial archive of the character, Regé draws attention to the gendered dynamic of remembering and forgetting that underwrites the history of comics. [less ▲]

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See detailParatextual signs in the medico-magical texts of the New Kingdom
Motte, Aurore ULg; Sojic, Nathalie ULg

Conference (2016, June 02)

This talk aims at describing the use of paratext in the medico-magical corpus of the New Kingdom (c. 1570-1069). The focus will be on hieratic texts written on papyri and ostraca. The first part will ... [more ▼]

This talk aims at describing the use of paratext in the medico-magical corpus of the New Kingdom (c. 1570-1069). The focus will be on hieratic texts written on papyri and ostraca. The first part will consist in typological considerations. From a formal point of view, paratextual notations will be grouped into three categories: (1) paratextual signs stricto sensu; (2) those that are not paratextual signs strictly speaking, as they are hieroglyphic signs, but that have to be understood as such; (3) the use of other visual means (red ink, size of the characters, blank spaces, …) to indicate that some elements are to be read as paratext. In the second part of the talk, we will define the functions (punctuation, emendation marks, layout marking, reading instructions, ...) and the uses of all these signs. [less ▲]

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See detailSepramesh and postoperative peritoneal adhesions in a rat model
Arung, Willy; Drion, Pierre ULg; DETRY, Olivier ULg

in Acta Chirurgica Belgica (2016), Online

Purpose: The present study aimed to investigate the safety and the anti-postoperative peritoneal adhesion (PPA) characteristics of SeprameshVR (Davol), a composite mesh made of polypropylene covered with ... [more ▼]

Purpose: The present study aimed to investigate the safety and the anti-postoperative peritoneal adhesion (PPA) characteristics of SeprameshVR (Davol), a composite mesh made of polypropylene covered with Seprafilm, when intraperitoneally placed in a rat model. Methods: Twenty male rats were randomized into a control group and a Sepramesh group. They underwent a primary surgical procedure aiming to induce a peritoneal injury in order to induce PPAs. In the Sepramesh group, the burnt peritoneum was covered with a 2-cm diameter disc of Sepramesh prosthesis. The mesh was fixed to the parietal peritoneum with four 3-0 absorbable stitches. PPAs were assessed during a second laparotomy 10 days later using quantitative and qualitative scoring systems. Results: There was no difference in terms of mean number of PPAs between both groups. All the rats from the control group developed PPAs. In the Sepramesh group, no adhesions were observed at the site of the injured peritoneum that had been covered with the Sepramesh prosthesis, but PPAs occurred at the extremities of the mesh, where there was close contact between polypropylene and viscera, or where the fixation sutures were placed. The severity and the type of adhesions were significantly higher in the control group. Conclusions: This study demonstrated that for the Sepramesh prostheses, the Seprafilm layer might be effective in PPA prevention, but damage caused by the section and fixation of Sepramesh should be limited in order to limit PPAs. [less ▲]

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See detailModélisation d'une climatisation automobile multi-évaporateurs
Gillet, Thomas ULg; Rullière, Romuald; Haberschill, Philippe et al

Poster (2016, June 02)

La modélisation d’une climatisation automobile multi-évaporateurs, composées de deux évaporateurs et d’un refroidisseur de fluide secondaire, a été réalisée à l’aide du logiciel LMS Imagine.Lab Amesim® 1D ... [more ▼]

La modélisation d’une climatisation automobile multi-évaporateurs, composées de deux évaporateurs et d’un refroidisseur de fluide secondaire, a été réalisée à l’aide du logiciel LMS Imagine.Lab Amesim® 1D. Dans le but d’étudier le comportement de la boucle, des perturbations sous la forme d’échelon ont été simulées sur un point de fonctionnement à moyenne et haute charge. L’impact de ces perturbations sur la stabilité de la température d’air soufflé est analysé pour deux types de détendeur. Les premiers résultats montrent que les détendeurs thermostatiques peuvent engendrer des instabilités. [less ▲]

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See detailModel-Based Decision Support Algorithm to Guide Fluid Resuscitation
Pironet, Antoine ULg; Dauby, Pierre ULg; MORIMONT, Philippe ULg et al

Conference (2016, June 02)

Fluid resuscitation is the first choice therapy for sepctic shock. However, fluid infusion only increases cardiac output in approximately 50 % of cases, while an excess of fluid can have harmful effects ... [more ▼]

Fluid resuscitation is the first choice therapy for sepctic shock. However, fluid infusion only increases cardiac output in approximately 50 % of cases, while an excess of fluid can have harmful effects. Therefore, clinicians are looking for indices to predict the effect of fluid infusion on cardiac output, before giving fluid. In this work, a minimal mathematical model of the cardiovascular system is used, representing the heart, an artery and a vein. The nine model parameters, including total stressed blood volume, are identified from experimental data. The experimental data was recorded during three 500 ml fluid infusions on two pigs infected with endotoxin, to simulate septic shock. The total stressed blood volume parameter is negatively associated with the change in cardiac output after fluid infusion, as observed in previous studies. Subsequently, an algorithm is proposed to guide fluid resuscitation, based on the value of this parameter. The use of the algorithm results in 60 % less fluid being given with virtually no effect on cardiac output. The decision algorithm has the potential to be used in human clinical trials since the data required for parameter identification can be obtained in an intensive care unit. [less ▲]

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See detailComparison of surface and column carbon monoxide at a high altitude, a megacity and a southern hemisphere site
Té, Yao; Jeseck, Pascal; Franco, Bruno ULg et al

Conference (2016, June 02)

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See detailY-a-t-il des contre-indications à l'examen ENMG ?
WANG, François-Charles ULg

in Echaniz-Laguna, Andoni (Ed.) ENMG 2016 (2016, June 02)

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See detailFive transiting hot Jupiters discovered using WASP-South, Euler, and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b, and WASP-133 b
Maxted, P. F. L.; Anderson, D. R.; Collier Cameron, A. et al

in Astronomy and Astrophysics (2016), 591

We have used photometry from the WASP-South instrument to identify 5 stars showing planet-like transits in their light curves. The planetary nature of the companions to these stars has been confirmed ... [more ▼]

We have used photometry from the WASP-South instrument to identify 5 stars showing planet-like transits in their light curves. The planetary nature of the companions to these stars has been confirmed using photometry from the EulerCam instrument on the Swiss Euler 1.2-m telescope and the TRAPPIST telescope, and spectroscopy obtained with the CORALIE spectrograph. The planets discovered are hot Jupiter systems with orbital periods in the range 2.17 to 5.75 days, masses from 0.3 M[SUB]Jup[/SUB] to 1.2 M[SUB]Jup[/SUB] and with radii from 1 R[SUB]Jup[/SUB] to 1.5 R[SUB]Jup[/SUB]. These planets orbit bright stars (V = 11-13) with spectral types in the range F9 to G4. WASP-126 is the brightest planetary system in this sample and hosts a low-mass planet with a large radius (0.3 M[SUB]Jup[/SUB],0.95 R[SUB]Jup[/SUB]), making it a good target for transmission spectroscopy. The high density of WASP-129 A suggests that it is a helium-rich star similar to HAT-P-11 A. WASP-133 A has an enhanced surface lithium abundance compared to other old G-type stars, particularly other planet host stars. These planetary systems are good targets for follow-up observations with ground-based and space-based facilities to study their atmospheric and dynamical properties. Full Tables 2 and 3 are only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr">http://cdsarc.u-strasbg.fr</A> (<A href="http://130.79.128.5">http://130.79.128.5</A>) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/591/A55">http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/591/A55</A> [less ▲]

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See detailSwift, un drole d'oiseau énergétique
Nazé, Yaël ULg

Article for general public (2016)

Not Available

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See detailWASP-120b, WASP-122b and WASP-123b: Three newly discovered planets from the WASP-South survey
Turner, O. D.; Anderson, D. R.; Collier Cameron, A. et al

in Publications of the Astronomical Society of the Pacific (2016), 128

We present the discovery by the WASP-South survey of three planets transiting moderately bright stars (V ~ 11). WASP-120b is a massive (5.0MJup) planet in a 3.6-day orbit that we find likely to be ... [more ▼]

We present the discovery by the WASP-South survey of three planets transiting moderately bright stars (V ~ 11). WASP-120b is a massive (5.0MJup) planet in a 3.6-day orbit that we find likely to be eccentric (e = 0.059+0.025-0.018) around an F5 star. WASP-122b is a hot-Jupiter (1.37MJup, 1.79RJup) in a 1.7-day orbit about a G4 star. Our predicted transit depth variation cause by the atmosphere of WASP-122b suggests it is well suited to characterisation. WASP-123b is a hot-Jupiter (0.92MJup, 1.33RJup) in a 3.0-day orbit around an old (~ 7 Gyr) G5 star. [less ▲]

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See detailMicrostructural evolution during the heat treatment of Laser Beam Melted AlSi10Mg
Mertens, Anne ULg; Dedry, Olivier ULg; Reuter, David et al

Conference (2016, June 01)

Al alloy AlSi10Mg processed by Laser Beam Melting (LBM) exhibits a much finer microstructure than its cast counterpart due to the ultra-fast cooling rates imposed in the LBM process. One important ... [more ▼]

Al alloy AlSi10Mg processed by Laser Beam Melting (LBM) exhibits a much finer microstructure than its cast counterpart due to the ultra-fast cooling rates imposed in the LBM process. One important consequence of this microstructural refinement is that a classical T6 age hardening heat treatment will not have the same effect on LBM AlSi10Mg when compared with cast AlSi10Mg. Indeed, a previous study by the present authors has shown that heat treating LBM AlSi10Mg at 510°C for 6 hours followed by a second isothermal hold at 170°C for 6 hours brought a marked improvement of the yield stress by 30% and of the elongation at break by 220%. However, this was achieved at the expense of a decrease in both hardness and ultimate tensile strength. A better understanding of the underlying phenomena is needed in order to optimize the heat treatment of LBM AlSi10Mg. The present work hence aims at investigating in more depth the microstructural evolution induced upon heat treating LBM AlSi10Mg. Changes in texture as well as in the distribution of Si-rich precipitates (size, morphology...) have been studied, with a particular attention to those changes taking place during the first step of the heat treatment at the higher temperature of 510°C. [less ▲]

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See detailLe gisement paléolithique multistratifié d'Ormesson (Seine-et-Marne) : Palethnologie ou pâle ethnologie ?
Bodu, Pierre; Ballinger, Michèle; Dumarçay, Gaëlle et al

Conference (2016, June 01)

Il est exceptionnel de pouvoir appliquer la démarche palethnologique, si fréquemment développée pour le Magdalénien, aux gisement du Paléolithique supérieur ancien dans le Bassin parisien, dans la mesure ... [more ▼]

Il est exceptionnel de pouvoir appliquer la démarche palethnologique, si fréquemment développée pour le Magdalénien, aux gisement du Paléolithique supérieur ancien dans le Bassin parisien, dans la mesure où ils sont rares, c'est indéniable, mais aussi en raison d'un état de conservation généralement médiocre de la plupart d'entre eux. Le site d'Ormesson, situé en Seine-et-Marne, à proximité de la vallée du Loing et de la ville de Nemours, constitue depuis 2009, année de la première fouille, un gisement-laboratoire pour l'approche palethnographique de différentes populations de la fin du Paléolithique moyen au Badegoulien. A travers cet exemple devenu désormais une référence pour le Paléolithique supérieur ancien, nous nous poserons la question suivante : Palethnologie ou pâle ethnologie ? [less ▲]

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See detailHuman Rights in National versus International Criminal Justice: the Gravity of Crimes as a Legitimate Source of Legal Pluralism?
Deprez, Christophe ULg

Conference (2016, June 01)

This presentation addressed the question whether the gravity of international crimes justifies the application of human rights standards that would be different (more flexible) than those available in ... [more ▼]

This presentation addressed the question whether the gravity of international crimes justifies the application of human rights standards that would be different (more flexible) than those available in ordinary criminal contexts. [less ▲]

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See detailScreening of mahoran plants for cosmetic applications.
Saive, Matthew ULg; Frederich, Michel ULg; Fauconnier, Marie-Laure ULg

Poster (2016, June 01)

This study’s main aim is to identify plant species showing anti-oxidant, anti-inflammatory and skin whitening properties. A selection of 89 samples from previous infield studies on the traditional uses of ... [more ▼]

This study’s main aim is to identify plant species showing anti-oxidant, anti-inflammatory and skin whitening properties. A selection of 89 samples from previous infield studies on the traditional uses of plants in Mayotte were analyzed. The anti-oxidant activity was assessed using the α, α-diphenyl-β-picrylhydrazyl (DPPH) method developed by Blois [1]. The anti-inflammatory activity and the skin whitening activity were both assessed through the study of inhibition kinetics from specific enzymes: respectively, lipoxygenase (EC 1.13.11.12) due to its important role in the leukotriene pathway and tyrosinase (EC. 1.14.18.1) as it takes part in the melanogenesis pathway. The IC 50 value for each sample and for each activity was obtained using UV/Vis spectrophotometric technics. These IC 50 were then compared with the ones obtained from known molecules found in the literature: namely, (±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (IC50 = 4,388 µM) for the anti-oxidant activity, nordihydroguaiaretic acid (IC50 = 3,5µM) for the anti-inflammatory activity and kojic acid (IC50 = 722 µM) for the anti-tyrosinase activity. The most effective anti-oxidant activity was observed in fresh leaves from Acalypha wilkesiana Müll.Arg. (IC50 = 0,381 g/L) and Leea guineensis G. Don. (IC50 = 0,225 g/L) as well as in dried roots from Litchi chinensis Sonn. (IC50 = 0,346 g/L). All results are expressed in grams of fresh matter. According to the preliminary tests for the-anti-inflammatory and skin whitening activities, the crude extracts from Kalanchoe pinnata Lam. Pers., Litchi chinensis Sonn., Zingiber zerumbet (L.) Sm., Leea guineensis G. Don. and Paullinia pinnata L. are likely to show promising activities. [less ▲]

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See detailVibration mode shapes visualization in industrial environment by real-time time-averaged phase-stepped electronic speckle pattern interferometry at 10.6  μm and shearography at 532 nm
Languy, Fabian ULg; Vandenrijt, Jean-François ULg; Thizy, Cédric ULg et al

in Optical Engineering : The Journal of the Society of Photo-Optical Instrumentation Engineers (2016), 55(12), 121704

We present our investigations on two interferometric methods suitable for industrial conditions dedicated to the visualization of vibration modes of aeronautic blades. First, we consider long-wave ... [more ▼]

We present our investigations on two interferometric methods suitable for industrial conditions dedicated to the visualization of vibration modes of aeronautic blades. First, we consider long-wave infrared (LWIR) electronic speckle pattern interferometry (ESPI). The use of long wavelength allows measuring larger amplitudes of vibrations compared with what can be achieved with visible light. Also longer wavelengths allow lower sensitivity to external perturbations. Second, shearography at 532 nm is used as an alternative to LWIR ESPI. Both methods are used in time-averaged mode with the use of phase-stepping. This allows transforming Bessel fringes, typical to time averaging, into phase values that provide higher contrast and improve the visualization of vibration mode shapes. Laboratory experimental results with both techniques allowed comparison of techniques, leading to selection of shearography. Finally a vibration test on electrodynamic shaker is performed in an industrial environment and mode shapes are obtained with good quality by shearography. [less ▲]

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