Last 7 days
Bookmark and Share    
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 14 (2 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 12 (1 ULg)
Full Text
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 ▲]

Detailed reference viewed: 29 (5 ULg)
Full Text
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)

Detailed reference viewed: 18 (1 ULg)
Full Text
Peer Reviewed
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)

Detailed reference viewed: 17 (1 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 3 (1 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 13 (0 ULg)
Full Text
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 ▲]

Detailed reference viewed: 30 (4 ULg)
Peer Reviewed
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 ▲]

Detailed reference viewed: 94 (2 ULg)
Peer Reviewed
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 ▲]

Detailed reference viewed: 21 (1 ULg)
Full Text
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 ▲]

Detailed reference viewed: 36 (5 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 24 (5 ULg)
Full Text
Peer Reviewed
See detailMultimodal evoked potentials for functional quantification and prognosis in multiple sclerosis
GIFFROY, Xavier ULg

in BMC Neurology (2016)

Functional biomarkers able to identify multiple sclerosis (MS) patients at high risk of fast disability progression are lacking. The aim of this study was to evaluate the ability of multimodal (upper and ... [more ▼]

Functional biomarkers able to identify multiple sclerosis (MS) patients at high risk of fast disability progression are lacking. The aim of this study was to evaluate the ability of multimodal (upper and lower limbs motor, visual, lower limbs somatosensory) evoked potentials (EP) to monitor disease course and identify patients exposed to unfavourable evolution. One hundred MS patients were assessed with visual, somatosensory and motor EP and rated on the Expanded Disability Status Scale (EDSS) at baseline (T0) and about 6 years later (T1). The Spearman correlation (rS) was used to evaluate the relationship between conventional EP scores and clinical findings. Multiple (logistic) regression analysis estimated the predictive value of baseline electrophysiological data for three clinical outcomes: EDSS, annual EDSS progression, and the risk of EDSS worsening. In contrast to longitudinal correlations, cross-sectional correlations between the different EP scores and EDSS were all significant (0.33 ≤ rS < 0.67, p < 0.001). Baseline global EP score and EDSS were highly significant predictors (p < 0.0001) of EDSS progression 6 years later. The aseline global EP score was found to be an independent predictor of the EDSS annual progression rate (p < 0.001), and of the risk of disability progression over time (p < 0.005). Based on a ROC curve determination, we defined a Global EP Score cut off point (17/30) to identify patients at high risk of disability progression illustrated by a positive predictive value of 70 %. This study provides a proof of the concept that electrophysiology could be added to MRI and used as another complementary prognostic tool in MS patients. [less ▲]

Detailed reference viewed: 32 (3 ULg)
Full Text
See detailMédicaments usage de faux
Sacre, Pierre-Yves ULg; Ziemons, Eric ULg; Hubert, Philippe ULg et al

Article for general public (2016)

Detailed reference viewed: 25 (9 ULg)
Full Text
Peer Reviewed
See detailMemory of the political construction of Europe in far right positions
Grandjean, Geoffrey ULg

in Jamin, Jérôme (Ed.) L'extrême droite en Europe (2016)

Detailed reference viewed: 10 (4 ULg)
Full Text
See detailLe secteur de la construction en Belgique
Artige, Lionel ULg

Conference given outside the academic context (2016)

Detailed reference viewed: 17 (0 ULg)
Full Text
See detailENMG du pied
WANG, François-Charles ULg; LOZZA, Alessandro

Conference (2016, June 01)

Detailed reference viewed: 13 (1 ULg)
Full Text
Peer Reviewed
See detailLe souci du monde — Le souci de soi. Approches croisées entre arts et médias : compte-rendu
Jousten, Lison ULg

in French Journal for Media Research (2016)

Detailed reference viewed: 30 (9 ULg)
Full Text
Peer Reviewed
See detailSpeech characteristic of French-speaking children with Dysarthria: Pilot study
MacLeod, andrea; Maillart, Christelle ULg; Ancelle, J. et al

Poster (2016, June)

Detailed reference viewed: 23 (1 ULg)