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See detailOral contraceptive and acute intestinal ischemia with mesenteric venous thrombosis: a case report
BELIARD, Aude ULg; VERRETH, Lucie; GRANDJEAN, Pascale

in Open Access Journal of Contraception (2017), 8

Background: Venous thrombosis is a serious complication of combined contraceptive. However, mesenteric venous thrombosis and intestinal necrosis are infrequently seen in women using oral contraceptives ... [more ▼]

Background: Venous thrombosis is a serious complication of combined contraceptive. However, mesenteric venous thrombosis and intestinal necrosis are infrequently seen in women using oral contraceptives and diagnosis is often delayed. Case presentation: We report a case of a 38-year-old obese female patient who presented with acute abdominal pain. A bowel infection was first diagnosed and treated with antibiotics. Contrast-enhanced tomography of the abdomen revealed diffuse ischemia of small intestine with superior mesenteric thrombosis. Laparotomy with segmental resection of both small and large bowel was performed. No predisposing factor of mesenteric venous thrombosis was demonstrated except association of combined contraceptive with obesity. Conclusion: This report highlights the need for clinicians to suspect venous mesenteric thrombosis in women of reproductive age with acute abdominal pain with poor physical findings. Detailed personal history including prescriptions should help to quickly and accurately determine the problem. [less ▲]

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See detailL'État rend-t-il encore la justice?
Bouhon, Frédéric ULg

Article for general public (2017)

Cet article aborde sommairement la question de l'évolution du rôle de l'État dans la mission qui consiste à rendre la justice. Il s'insère dans un dossier consacré au réformes judiciaires.

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See detailLe castor, porte-parole d'une rivière vivante
Denayer, Dorothée ULg; Semal, Nathalie ULg

in Mille Lieux (2017), 4

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See detailMeasuring children motor skills with MOBACK-1: descriptive data and critical analysis
Jidovtseff, Boris ULg; Vandeloise, Vérane; Cloes, Marc ULg et al

in Sääkslahti, Arja (Ed.) The book of abstracts (2017, January)

Introduction The development of motor skills competencies is critical during childhood should be considered as the central learning outcome in physical education. Assessing motor competencies of the ... [more ▼]

Introduction The development of motor skills competencies is critical during childhood should be considered as the central learning outcome in physical education. Assessing motor competencies of the children make sense for teachers, trainers and researchers. The MOBAK-1 testing battery has been recently developed with the aim of assessing a wide panel of motor skills in relationship with locomotion and object-control abilities (1). This battery is complete and easy to use but present a scoring system that is only based on the success or the failure of the task. The aim of the study was to collect descriptive data from Belgian children with MOBAK-1, and to do a critical analysis of the scoring system through the analysis of the failure reasons in the tests. Methods The MOBAK-1 testing battery (1) was addressed to 166 primary school pupils (7.2±0.6 YO) coming from the French speaking part of Belgium. For each test, children received a score from 0 to 2, according to the number of success and fails in the task. Additionally, the evaluator took notes of the failure reasons when it occurs. Results Results from our subjects were in accordance with a previous study (1) for all tests except rolling and jumping tasks. The analysis of the failure reasons revealed that some criteria were too severe as some children failed while they were almost able to do the test correctly. This appeared especially in the rolling and jumping tests where the score did not really reflect the level of the children. Conclusion MOBACK-1 testing battery was successful to assess children motor skills for 6 out of 8 tests. Critical analysis of children failures in the tests revealed that some criteria seemed to be severe. Scoring system should be improved in order to inform about the children level in each test. References 1. Herrmann, C., Gerlach, E., & Seelig, H. (2015). Development and validation of a test instrument for the assessment of basic motor competencies in primary school. Measurement in Physical Education and Exercise Science, 19(2), 80-90. [less ▲]

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See detailAnalysis of Kids’ Athletics implementation in Wallonia
Jidovtseff, Boris ULg; Wuillaume, Sandrine; Cloes, Marc ULg

in Sakslahti, Arja (Ed.) Book of abstracts (2017, January)

Introduction Since decades in Wallonia (French speaking part of Belgium), athletics competitions for children are miniaturized versions of adults’ competitions. Despite the fact that it has been pointed ... [more ▼]

Introduction Since decades in Wallonia (French speaking part of Belgium), athletics competitions for children are miniaturized versions of adults’ competitions. Despite the fact that it has been pointed out that such kind of approach, based on performance, is not appropriated for motor learning and could result in an increased rate of dropout (1), no change has occurred since years. The International Association of Athletic Federation has developed and promoted a more appropriate model of competition for children under 10 years old: ‘Kids’Athletics’ (KA)(2). While this model is well known, it has not been selected by the Wallonian federation as the gold standard yet . This study aimed to analyze the perceived interest of a group of experts about KA, and to identify the strategies that could be considered for KA implementation in Wallonia. Methods Semi-structured interviews were conducted with 14 athletics or marketing experts (demographic presentation; knowledge about KA and personal experience with KA ; opinion about KA model in comparison with the traditional one, and ; strategies that could be helpful to implement KA in Wallonia). Results Findings showed that 12 experts knew the KA concept while 9 have experimented it in their own club. None mentioned an official competition between clubs. A list of KA’s advantages and disadvantages has been identified (organization, children needs, and development). All experts considered that KA was more adapted to children than traditional competition. Based on subjects’ proposals, a progressive strategy for KA implementation is suggested. It includes the support of the federation and recommends to start with the more convinced clubs. Conclusion This study confirms that KA should be implemented in Wallonia. In order to optimize the chances of success, it would be appropriate to multiply actions, taking into account the potential barriers identified by the experts. Keywords : Children, track and field, competition, Kids Athletics, Wallonia. References Gozzoli C., Locatelli, E., Massin, D., & Wangemann, B.. (2002). IAAF Kids’ Athletics : A team event for children. Monaco: IAAF Shields, D. L. & Bredemeier, B. L. (2009). True competition: A guide to pursuing excellence in sport and society. Champaign, IL: Human Kinetics. [less ▲]

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See detailLe système d’accueil et les formations initiales des professionnel-le-s de l’enfance (0-12 ans) au Québec
Housen, Marie ULg; Pirard, Florence ULg

Report (2017)

Dans le suivi de la recherche sur les formations initiales dans l'accueil de l'enfance (Pirard al., 2015), ce rapport présente le système éducatif et de formation au Québec ainsi qu'un programme de ... [more ▼]

Dans le suivi de la recherche sur les formations initiales dans l'accueil de l'enfance (Pirard al., 2015), ce rapport présente le système éducatif et de formation au Québec ainsi qu'un programme de formation novateur mis en place au Collège d’enseignement général et professionnel (Cégep) de Saint-Hyacinthe depuis 2005. Ce programme, unique au Québec, vise à pallier aux difficultés de transfert des compétences des étudiantes en situation réelle complexe grâce à un accompagnement in situ des enseignantes centré sur les processus de la pratique réflexive. Ce rapport fait suite à la journée d'étude du 22 juin 2016 avec la contribution de la Pr Nathalie Bigras (Université du Québec à Montréal) et Lise Tétreau (enseignante au niveau collégial). [less ▲]

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See detailDetection, isolation and characterization of Fusobacterium gastrosuis sp. nov. colonizing the stomach of pigs
De Witte, C.; Flahou, B.; Ducatelle, R. et al

in Systematic & Applied Microbiology (2017), 40(1), 42-50

Nine strains of a novel Fusobacterium sp. were isolated from the stomach of 6-8 months old and adult pigs. The isolates were obligately anaerobic, although they endured 2 hours exposure to air ... [more ▼]

Nine strains of a novel Fusobacterium sp. were isolated from the stomach of 6-8 months old and adult pigs. The isolates were obligately anaerobic, although they endured 2 hours exposure to air. Phylogenetic analysis based on 16S rRNA and gyrase B genes demonstrated that the isolates showed high sequence similarity with Fusobacterium mortiferum, Fusobacterium ulcerans, Fusobacterium varium, Fusobacterium russii and Fusobacterium necrogenes, but formed a distinct lineage in the genus Fusobacterium. Comparative analysis of the genome of the type strain of this novel Fusobacterium sp. confirmed that it is different from other recognized Fusobacterium spp. DNA-DNA hybridization, fingerprinting and genomic %GC determination further supported the conclusion that the isolates belong to a new, distinct species. The isolates were also distinguishable from these and other Fusobacterium spp. by phenotypical characterization. The strains produced indole and exhibited proline arylamidase and glutamic acid decarboxylase activity. They did not hydrolyse esculin, did not exhibit pyroglutamic acid arylamidase, valine arylamidase, α-galactosidase, β-galactosidase, β-galactosidase-6-phosphate or α-glucosidase activity nor produced acid from cellobiose, glucose, lactose, mannitol, mannose, maltose, raffinose, saccharose, salicin or trehalose. The major fatty acids were C16 : 0 and C18 : 1ω9c. The name Fusobacterium gastrosuis sp. nov. is proposed for the novel isolates with the type strain CDW1(T) (= DSM 101753(T) = LMG 29236(T)). We also demonstrated that Clostridium rectum and Fusobacterium mortiferum represent the same species, with nomenclatural priority for the latter. [less ▲]

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See detailA comprehensive system of control characters for Ancient Egyptian hieroglyphic text in Unicode
Nederhof, Mark-Jan; Rajan, Vinodh; Lang, Johannes et al

Computer development (2017)

We propose a comprehensive system of control characters for encoding Ancient Egyptian hieroglyphs in Unicode.

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See detailConvention Région wallonne et HGE-ULg Caractérisation complémentaire des masses d’eau dont le bon état dépend d’interactions entre les eaux de surface et les eaux souterraines - Délivrable D1.8 Rapport final
Brouyère, Serge ULg; Briers, Pierre ULg; Descy, Jean-Pierre et al

Report (2017)

Mechanisms of interactions between groundwater bodies and rivers whose status and anthropogenic use can be detrimental from a quantitative and qualitative point of view to one or the other of these two ... [more ▼]

Mechanisms of interactions between groundwater bodies and rivers whose status and anthropogenic use can be detrimental from a quantitative and qualitative point of view to one or the other of these two compartments of the water cycle. In addition, contamination of groundwater by nitrate remains relevant. Based on these observations, a study financed by the Public Service of Wallonia was carried out over a period of 39 months to investigate (1) the direction, importance and dynamics of water exchange between groundwater and rivers at the scale of a river section; (2) the impact of these interactions on river baseflows and the river ecological status as a function of groundwater withdrawal and recharge at the catchment scale; (3) mechanisms and timing of transfer and abatement of pollutants (nitrate) between groundwater and surface waters at the watershed scale. The consequences of these mechanisms on the medium- and long-term evolution of groundwater and surface water quality were to be determined. To achieve this, the project relied on the implementation of a series of field investigations essentially focused on the interfaces between surface water and groundwater compartments (soil and unsaturated zone and water-table interface), while acquiring additional information on groundwater. The investigations carried out in the watersheds of the upstream Hoyoux and Triffoy watershed in the Condroz region aimed to provide 6 specific responses to water quantity and quality issued associated with groundwater – surface water interactions in the selected basins and generic responses in the form of new knowledge concerning the mechanisms of recharge and groundwater - river exchanges, concerning the evolution of nitrate concentrations in watersheds, data and measurements for the parameterization of models, and water resources management tools in the form of quantitative and qualitative indicators for groundwater - surface water interactions. [less ▲]

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See detailThe design and study of new Li-ion full cells of LiCo2/3Ni1/6Mn1/6O2 positive electrode paired with MnSn2 and Li4Ti5O12 negative electrodes
Mahmoud, Abdelfattah ULg; Saadoune, Ismael; Lippens, Pierre-Emmanuel et al

in Solid State Ionics (2017), 300

We report evidence for the electrochemical performances of two Li-ion full cells, built up by the combination of LiCo2/3Ni1/6Mn1/6O2 cathode material with MnSn2 intermetallic and Li4Ti5O12 spinel as the ... [more ▼]

We report evidence for the electrochemical performances of two Li-ion full cells, built up by the combination of LiCo2/3Ni1/6Mn1/6O2 cathode material with MnSn2 intermetallic and Li4Ti5O12 spinel as the anode materials, respectively. MnSn2 and Li4Ti5O12 electrode materials illustrate different working voltage versus the redox couple Li+/Li0 and different reactionmechanisms during lithiuminsertion/deinsertion cycles. The structure,morphological characteristics and the electrochemical properties of the studied materialswere investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical techniques. The two full-cell configurations showed different electrochemical behaviors. The MnSn2//LiCo2/3Ni1/6Mn1/6O2 configuration exhibits high working voltage (~3.5 V) and specific capacity (~200 mAh/gcathode) but suffers from high irreversible capacity loss during the first cycles and capacity fading during cycling. The Li4Ti5O12//LiCo2/3Ni1/6Mn1/6O2 cell demonstrated excellent cycling properties at different C-rates with 100% capacity retention after 150 cycles at 1 C. Although the working voltage (~2.2 V) and the specific capacity (~140 mAh/gcathode) are lower than those of the MnSn2//LiCo2/3Ni1/6Mn1/6O2 configuration, the other measured electrochemical properties suggest that the Li4Ti5O12//LiCo2/3Ni1/6Mn1/6O2 full cell is a potential candidate for battery application due to its excellent cycling performance and improved safety. [less ▲]

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See detailPESTO SAUCE TYPE PRODUCTS: INFLUENCE OF BEESWAX AND STORAGE CONDITIONS ON RHEOLOGY AND COLLOIDAL STABILITY
Bouacida, Saoussen; Muresan, Vlad; Essaidi, Ismahen et al

in Journal of Microbiology, Biotechnology and Food Sciences (2017), 6(3), 911-920

One of the major problems for pesto sauce type products is the tendency of oil to cream, causing their alteration and decreasing consumer’s acceptability. In this study, colloidal and oxidative stability ... [more ▼]

One of the major problems for pesto sauce type products is the tendency of oil to cream, causing their alteration and decreasing consumer’s acceptability. In this study, colloidal and oxidative stability of pesto samples with (0.5-1.2%) of beeswax was evaluated during storage at 4, 20 and 40°C. The rheological behavior and color analysis was evaluated at the same temperatures. Sensory evaluation by using a hedonic test was also perfomed. Increasing the samples beeswax content increased the pesto colloidal stability. The samples with 0.8-1.2% have the highest stability and overall performed well on sensory analysis. The peroxide values of samples increased significantly (p<0.05) with storage time and temperature, as well as the p-anisidine values. During the storage at 40°C, peroxide values of samples without wax and with 1,2% wax increased from 11.75 to 33.81 and 32.72 meq O2/kg, respectively. In the same condition, p-Anisidine values increased from 4.51 to 10.71 and 9.94, respectively. For these same samples stored 793 h, peroxide values increased from 13.33 to 33.81 and to 32.72 meq O2/kg, when the temperature increased from 4 to 40°C. The same observation was made for p-anisidine values, which increased from 8.40 to 10.71 and 9.94. As expected, the pesto samples showed the best oxidative stability at low temperature. It was shown that beeswax content, temperature and time of storage are important parameters for controlling pesto rheology, colloidal and oxidative stability. In fact, the pseudo plasticity of samples increases with increasing beeswax added and with decreasing the temperature. The colloidal and oxidative stability of samples decreased as the storage time and temperature increased. [less ▲]

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See detailDynamics and emissions of N2O in groundwater: A review
Jurado Elices, Anna ULg; Borges, Alberto ULg; Brouyère, Serge ULg

in Science of the Total Environment (2017), 584-585C

This work reviews the concentrations, the dynamics and the emissions of nitrous oxide (N2O) in groundwater. N2O is an important greenhouse gas (GHG) and the primary stratospheric ozone depleting substance ... [more ▼]

This work reviews the concentrations, the dynamics and the emissions of nitrous oxide (N2O) in groundwater. N2O is an important greenhouse gas (GHG) and the primary stratospheric ozone depleting substance. The major anthropogenic source that contributes to N2O generation in aquifers is agriculture because the use of fertilizers has led to the widespread groundwater contamination by inorganic nitrogen (N) (mainly nitrate, NO3−). Once in the aquifer, this inorganic N is transported and affected by several geochemical processes that produce and consume N2O. An inventory of dissolved N2O concentrations is presented and the highest dissolved concentration is about 18.000 times higher than air-equilibrated water (up to 4004 μg N L-1). The accumulation of N2O in groundwater is mainly due to denitrification and to lesser extent to nitrification. Their occurrence depend on the geochemical (e.g., NO3−, dissolved oxygen, ammonium and dissolved organic carbon) as well as hydrogeological parameters (e.g., groundwater table fluctuations and aquifer permeability). The coupled understanding of both parameters is necessary to gain insight on the dynamics and the emissions of N2O in groundwater. Overall, groundwater indirect N2O emissions seem to be a minor component of N2O emissions to the atmosphere. Further research might be devoted to evaluate the groundwater contribution to the indirect emissions of N2O because this will help to better constraint the N2O global budget and, consequently, the N budget. [less ▲]

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See detailEvaluations à large échelle : prendre la juste mesure des effets de contexte
Lafontaine, Dominique ULg

in Detroz, Pascal; Crahay, Marcel; Fagnant, Annick (Eds.) L'évaluation à la lumière des contextes et des disciplines (2017)

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See detailPratiques de GRH en RDC ou comment gérer les contradictions dans un contexte d’instabilité
Sem Mbimbi, pascal; M'Bayo Musewa Laki, Maurice; Cornet, Annie ULg

in Dupriez, Pierre; Vanderlinden, Blandine (Eds.) Au cœur de la dimension culturelle du Management (2017)

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See detailUne série consécutive de 125 greffes hépatiques à partir de donneurs cadavériques en mort circulatoire
DETRY, Olivier ULg; MEURISSE, Nicolas ULg; HANS, Marie-France ULg et al

in Transplant International (2017, January), 30(Suppl 1), 2481

Introduction: Donation after circulatory death (DCD) has been proposed to partially overcome the organ donor shortage. DCD-LT remains controversial, with reported increased risk of graft loss and ... [more ▼]

Introduction: Donation after circulatory death (DCD) has been proposed to partially overcome the organ donor shortage. DCD-LT remains controversial, with reported increased risk of graft loss and retransplantation. The authors retrospectively reviewed a single centre experience with controlled DCD-LT in a 14-year period. Patients and Methods: 125 DCD-LT were consecutively performed between 2003 and 2016. All donation and procurement procedures were performed as controlled DCD in operative rooms. Data are presented as median (ranges). Median donor age was 56 years (16–84). Most grafts were flushed with HTK solution in the first part of experience, and more recently with IGL1. Allocation was centre-based. Median follow-up was 52 (1–164) months. No patient was lost to follow-up. Results: Median total DCD warm ischemia was 19 min (9–39). Median cold ischemia was 238 min (105–576). Patient survivals were 90.2%, 77.5% and 74.5 % at 1.3 and 5 years, respectively. Graft survivals were 87.7%, 76.3% and 73.2% at 1.3 and 5 years, respectively. Biliary complications included anas- tomotic strictures and extrahepatic main bile duct ischemic obstruction, that were managed either by endoscopy or hepatico-jejunostomy. No PNF was observed in this series and one graft was lost due to ischemic cholangiopathy. Discussion: In this series, DCD LT appears to provide results similar to classical LT. Short cold ischemia and recipient selection with low MELD score may be the keys to good results in DCD LT, in terms of graft survival and avoidance of ischemic cholangiopathy. [less ▲]

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See detailNo copper required for germination of an endangered endemic species from the Katangan Copperbelt (Katanga, DR Congo): Diplolophium marthozianum
Boisson, Sylvain ULg; Ortmans, William ULg; Maréchal, Justine et al

in Tropical Ecology (2017), 58(1), 193-198

Two hypotheses were tested with respect to the germination of Diplolophium marthozianum, an endemic plant species of the copper-cobalt outcrops in Katanga, Democratic Republic of Congo: (1) germination of ... [more ▼]

Two hypotheses were tested with respect to the germination of Diplolophium marthozianum, an endemic plant species of the copper-cobalt outcrops in Katanga, Democratic Republic of Congo: (1) germination of copper-endemics is limited by fungal infection in the absence of pathogen control and (2) the germination success of this copper-endemic species is copper-dependent. Seed lots of twenty seeds were weighed, soaked in different disinfection treatments and then placed in a germination medium containing four distinct copper concentrations for 30 days. Seed viability was measured at the beginning and at the end of the experiment by a cut test. Final germination percentage (15.2 ± 8.2 %) and seed viability (24.2 ± 10.3 %) were not affected by copper concentration or disinfection treatments. D. marthozianum is able to germinate in a substrate without added copper, despite pervasive fungal infection. However, seed mass had a significant positive effect on seed germination suggesting that selecting the largest seeds may ensure the highest germination success in ex situ conservation programs. [less ▲]

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See detailProtecting Assets Under Non-Parametric Market Conditions
Choffray, Jean-Marie ULg; Pahud de Mortanges, Charles ULg

in Longin, François (Ed.) Extreme Events in Finance: A Handbook of Extreme Value Theory and its Applications (2017)

Under non-parametric market conditions, investors usually become more concerned about the return of their money than about the return on their money. Protecting assets becomes the surest if not the only ... [more ▼]

Under non-parametric market conditions, investors usually become more concerned about the return of their money than about the return on their money. Protecting assets becomes the surest if not the only path to survival and growth. High frequency trading systems, over leveraged shadow entities, flash crashes, and stealth central bank actions, to name a few, contribute to create a “Rumsfeldian” type of world in which decision makers have to cope not only with “Known knowns” – things they know that they know – but also with “Unknown unknowns” – things they don’t know that they don’t know! The goal of this chapter is to explore such a conceptual model of the “Unknown” and to derive from it a concise and coherent set of battle-tested heuristics aimed at designing effective investment strategies to protect assets. [less ▲]

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See detailUnsteady lifting line theory using the Wagner function
Boutet, Johan ULg; Dimitriadis, Grigorios ULg

in Proceedings of the 55th AIAA Aerospace Sciences Meeting (2017, January)

A method is presented to model the incompressible, attached, unsteady lift and moment acting on a thin three-dimensional wing in the time domain. The model is based on the combination of Wagner theory and ... [more ▼]

A method is presented to model the incompressible, attached, unsteady lift and moment acting on a thin three-dimensional wing in the time domain. The model is based on the combination of Wagner theory and lifting line theory trough the unsteady Kutta-Joukowsky theorem. The result is a set of closed form linear ordinary di erential equations that can be solved analytically or using a Runge-Kutta-Fehlberg algorithm. The method is validated against numerical predictions from an unsteady Vortex Lattice method for rectangular and tapered wings undergoing step or oscillatory changes in plunge or pitch. As the aerodynamic loads are written in state space form in the proposed method, they can be easily included in aeroelastic and flight dynamic calculations. [less ▲]

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