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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 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 detailLes valeurs européennes, dernier rempart à la survie de l'UE
Habran, Maxime ULg

Article for general public (2016)

Le 23 juin 2016, l’Union européenne (UE) s’est un peu plus enfoncée dans la crise. Les britanniques se sont prononcés en faveur d’une sortie du Royaume-Uni de l’Union européenne à 51,9% contre 48,1%. Quoi ... [more ▼]

Le 23 juin 2016, l’Union européenne (UE) s’est un peu plus enfoncée dans la crise. Les britanniques se sont prononcés en faveur d’une sortie du Royaume-Uni de l’Union européenne à 51,9% contre 48,1%. Quoi qu’on en dise, il s’agit d’une décision inédite pour l’Europe. Un électrochoc de plus dans l’histoire de la construction européenne. Cet énième écueil marque sans doute la fin d’une union sans cesse plus étroite entre les peuples de l’Europe. [less ▲]

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See detailLes agents chélateurs : alerte à l'abus !
MISTRETTA, Virginie ULg; CHARLIER, Corinne ULg

in Revue Médicale de Liège (2016), 71(12), 551-556

L’exposition aux métaux lourds est un phénomène courant en raison de leur prévalence dans l’alimentation et dans l’environnement; leur toxicité demeure une préoccupation importante pour la santé publique ... [more ▼]

L’exposition aux métaux lourds est un phénomène courant en raison de leur prévalence dans l’alimentation et dans l’environnement; leur toxicité demeure une préoccupation importante pour la santé publique. Les agents chélateurs sont des substances chimiques utilisées pour augmenter l’élimination de certains métaux présents à des concentrations anormalement élevées dans l’organisme. Leurs indications cliniques approuvées sont limitées, particulièrement en raison des effets indésirables qu’ils peuvent induire. Malheureusement, trop souvent, les agents chélateurs sont utilisés avec pour objectif de vérifier le niveau d’imprégnation de l’organisme par les métaux lourds. Il s’agit d’un usage inapproprié et abusif. Afin d’attirer l’attention des praticiens sur cette problématique, les bons et les mauvais usages des chélateurs de métaux sont passés en revue [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 detailSaint-Jacques et la Cité de Liège + L'église Saint-Jacques à Liège (+ table of contents and bibliography)
Dumont, Jonathan ULg

in Allart, Dominique; Piavaux, Mathieu; Van den Bossche, Benoît (Eds.) et al L’église Saint-Jacques à Liège. Templum pulcherrimum. Une histoire, un patrimoine (2016)

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See detailAdditive Manufacturing of Metallic Materials: An Introduction
Mertens, Anne ULg

Learning material (2016)

This powerpoint presentation was used as teaching material in a seminar given as part of the course “Ingénierie des matériaux métalliques”. Following on a general introduction to additive manufacturing of ... [more ▼]

This powerpoint presentation was used as teaching material in a seminar given as part of the course “Ingénierie des matériaux métalliques”. Following on a general introduction to additive manufacturing of metallic materials, it outlines some important current issues in the development of additive technologies, by reporting on two case studies into the processing (1) of a single material system (i.e. Ti alloy Ti-6Al-4V) and (2) of a multimaterial system (i.e. a metal matrix composite). The first case study on Ti-6Al-4V reviews issues related to the dimensional accuracy of the produced components, as well as the control of their microstructures and usage properties. The second case study provides an introduction to metal matrix composites with a particular attention for the process known as laser cladding, focusing on the relationships between the thermal history during the production of a composite coating, and the resulting microstructure and properties, with special attention to the dissolution of ceramic particles (e.g. carbides) and to interfacial reactions taking place between the particles and the metallic matrix. [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 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 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 detailLaBGen: A method based on motion detection for generating the background of a scene
Laugraud, Benjamin ULg; Pierard, Sébastien ULg; Van Droogenbroeck, Marc ULg

in Pattern Recognition Letters (2016)

Given a video sequence acquired with a fixed camera, the generation of the stationary background of the scene is a challenging problem which aims at computing a reference image for a motionless background ... [more ▼]

Given a video sequence acquired with a fixed camera, the generation of the stationary background of the scene is a challenging problem which aims at computing a reference image for a motionless background. For that purpose, we developed our method named LaBGen, which emerged as the best one during the Scene Background Modeling and Initialization (SBMI) workshop organized in 2015, and the IEEE Scene Background Modeling Contest (SBMC) organized in 2016. LaBGen combines a pixel-wise temporal median filter and a patch selection mechanism based on motion detection. To detect motion, a background subtraction algorithm decides, for each frame, which pixels belong to the background. In this paper, we describe the LaBGen method extensively, evaluate it on the SBI 2016 dataset and compare its performance with other background generation methods. We also study its computational complexity, the performance sensitivity with respect to its parameters, and the stability of the predicted background image over time with respect to the chosen background subtraction algorithm. We provide an open source C++ implementation at http://www.telecom.ulg.ac.be/labgen. [less ▲]

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See detailLe métier de script, la mémoire et la cohérence du film. Rencontre avec Marie-Florence Roncayolo et Marika Piedboeuf.
Tomasovic, Dick ULg

Conference given outside the academic context (2016)

Evocation du métier et du regard du scripte en compagnie de Marie-Florence Roncayolo et Marika Piedboeuf.

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See detailChemical composition and antimicrobial activity of essential oils of Ocimum basilicum, Ocimum canum and Ocimum gratissimum in function of harvesting time
Mith, Hasika; Yayi-Ladékan, Eléonore; Dosso Sika Kpoviessi, Salomé et al

in Journal of Essential Oil-Bearing Plants [=JEOBP] (2016), 19(6), 1413-1425

The chemical composition of essential oils obtained by hydrodistillation from aerial parts of Ocimum basilicum, Ocimum canum and Ocimum gratissimum from Benin as affected by harvesting time, were analyzed ... [more ▼]

The chemical composition of essential oils obtained by hydrodistillation from aerial parts of Ocimum basilicum, Ocimum canum and Ocimum gratissimum from Benin as affected by harvesting time, were analyzed by GC-FID (Gas chromatography-Flame ionization detector) and GC-MS (Gas chromatography-Mass spectrometry). Based on the composition analysis, major components were as follows: estragol (43.0-44.7%) and linalool (24.6 29.8%) in O. basilicum oils; carvacrol (12.0-30.8%) and p-cymene (19.5-26.2%) in O. canum oils; thymol (28.3-37.7%) and γ-terpinene (12.5-19.3 %) in O. gratissimum oils. Disc diffusion and broth microdilution assays were used to evaluate the antibacterial activity of essential oils and their main components against two foodborne bacteria, Listeria monocytogenes and Salmonella enterica serotype Typhimurium. The tested oils and their components exhibited notable antimicrobial activities against L. monocytogenes and S. Typhimurium. The O. canum and O. gratissimum oils collected at 7h and 19h showed significant higher activities against L. monocytogenes and S. Typhimurium (MICs and MBCs 0.34 - 2.5 μL/mL) (p < 0.05), whereas O. basilicum showed lower activity (MICs and MBCs 2.0 - 8.0 μL/mL) at any daytime of harvest, the weakest being at 19h (MIC and MBC 12.0 - 32.0 μL/mL). The daytime of harvest can influence the composition of oils and their activities on bacteria. [less ▲]

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See detailThe SHARDDS survey: First resolved image of the HD 114082 debris disk in the Lower Centaurus Crux with SPHERE
Wahhaj, Zahed; Milli, Julien; Kennedy, Grant et al

in Astronomy and Astrophysics (2016), 596

We present the first resolved image of the debris disk around the 16 ± 8 Myr old star, HD 114082. The observation was made in the H-band using the SPHERE instrument. The star is at a distance of 92 ± 6 pc ... [more ▼]

We present the first resolved image of the debris disk around the 16 ± 8 Myr old star, HD 114082. The observation was made in the H-band using the SPHERE instrument. The star is at a distance of 92 ± 6 pc in the Lower Centaurus Crux association. Using a Markov chain Monte Carlo analysis, we determined that the debris is likely in the form of a dust ring with an inner edge of 27.7[SUP]+2.8[/SUP][SUB]-3.5[/SUB] au, position angle -74.3°[SUP]+0.5[/SUP][SUB]-1.5[/SUB], and an inclination with respect to the line of sight of 6.7°[SUP]+3.8[/SUP][SUB]-0.4[/SUB]. The disk imaged in scattered light has a surface density that is declining with radius of r[SUP]-4[/SUP], which is steeper than expected for grain blowout by radiation pressure. We find only marginal evidence (2σ) of eccentricity and rule out planets more massive than 1.0 M[SUB]Jup[/SUB] orbiting within 1 au of the inner edge of the ring, since such a planet would have disrupted the disk. The disk has roughly the same fractional disk luminosity (L[SUB]disk[/SUB]/L[SUB]∗[/SUB] = 3.3 × 10[SUP]-3[/SUP]) as HR 4796 A and β Pictoris, however it was not detected by previous instrument facilities most likely because of its small angular size (radius 0.4''), low albedo ( 0.2), and low scattering efficiency far from the star due to high scattering anisotropy. With the arrival of extreme adaptive optics systems, such as SPHERE and GPI, the morphology of smaller, fainter, and more distant debris disks are being revealed, providing clues to planet-disk interactions in young protoplanetary systems. The reduced images 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/596/L4">http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/596/L4</A> [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 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 detailLe décret relatif aux implantations commerciales et le droit de l’Union européenne : une logique juridique à l’encontre de celle d’un marché intérieur supranational ?
Van Cleynenbreugel, Pieter ULg

Scientific conference (2016, November 29)

This presentation analyses the applicability and relevance of EU law in the application of the Walloon commercial implantation permit decree. It argues that the regional legal framework is overall ... [more ▼]

This presentation analyses the applicability and relevance of EU law in the application of the Walloon commercial implantation permit decree. It argues that the regional legal framework is overall compatible with the spirit of EU law, yet in practice harbours the risk of incompatibilities. [less ▲]

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See detailAspects scientifiques du changement climatique: A quoi devons-nous nous attendre?
Ozer, Pierre ULg

Conference given outside the academic context (2016)

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