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See detailIncidence and risk factors for early renal dysfunction after liver transplantation.
WIESEN, Patricia ULg; MASSION, Paul ULg; JORIS, Jean ULg et al

in World journal of transplantation (2016), 6(1), 220-232

AIM: To determine renal dysfunction post liver transplantation, its incidence and risk factors in patients from a Belgian University Hospital. METHODS: Orthotopic liver transplantations performed from ... [more ▼]

AIM: To determine renal dysfunction post liver transplantation, its incidence and risk factors in patients from a Belgian University Hospital. METHODS: Orthotopic liver transplantations performed from January 2006 until September 2012 were retrospectively reviewed (n = 187). Patients with no renal replacement therapy (RRT) before transplantation were classified into four groups according to their highest creatinine plasma level during the first postoperative week. The first group had a peak creatinine level below 12 mg/L, the second group between 12 and 20 mg/L, the third group between 20 and 35 mg/L, and the fourth above 35 mg/L. In addition, patients who needed RRT during the first week after transplantation were also classified into the fourth group. Perioperative parameters were recorded as risk factors, namely age, sex, body mass index (BMI), length of preoperative hospital stay, prior bacterial infection within one month, preoperative ascites, preoperative treatment with beta-blocker, angiotensin-converting enzyme inhibitor or non steroidal anti-inflammatory drugs, preoperative creatinine and bilirubin levels, donor status (cardiac death or brain death), postoperative lactate level, need for intraoperative vasopressive drugs, surgical revision, mechanical ventilation for more than 24 h, postoperative bilirubin and transaminase peak levels, postoperative hemoglobin level, amount of perioperative blood transfusions and type of immunosuppression. Univariate and multivariate analysis were performed using logistic ordinal regression method. Post hoc analysis of the hemostatic agent used was also done. RESULTS: There were 78 patients in group 1 (41.7%), 46 in group 2 (24.6%), 38 in group 3 (20.3%) and 25 in group 4 (13.4%). Twenty patients required RRT: 13 (7%) during the first week after transplantation. Using univariate analysis, the severity of renal dysfunction was correlated with presence of ascites and prior bacterial infection, preoperative bilirubin, urea and creatinine level, need for surgical revision, use of vasopressor, postoperative mechanical ventilation, postoperative bilirubin and urea, aspartate aminotransferase (ASAT), and hemoglobin levels and the need for transfusion. The multivariate analysis showed that BMI (OR = 1.1, P = 0.004), preoperative creatinine level (OR = 11.1, P < 0.0001), use of vasopressor (OR = 3.31, P = 0.0002), maximal postoperative bilirubin level (OR = 1.44, P = 0.044) and minimal postoperative hemoglobin level (OR = 0.059, P = 0.0005) were independent predictors of early post-liver transplantation renal dysfunction. Neither donor status nor ASAT levels had significant impact on early postoperative renal dysfunction in multivariate analysis. Absence of renal dysfunction (group 1) was also predicted by the intraoperative hemostatic agent used, independently of the extent of bleeding and of the preoperative creatinine level. CONCLUSION: More than half of receivers experienced some degree of early renal dysfunction after liver transplantation. Main predictors were preoperative renal dysfunction, postoperative anemia and vasopressor requirement. [less ▲]

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See detailDouble genetic defect in a case of congenital hypogonadotropic hypogonadism
Potorac, Iulia ULg; Pintiaux, Axelle ULg; VALDES SOCIN, Hernan Gonzalo ULg et al

in Abstract book - 17th World Congress of Gynecological Endocrinology (2016, March)

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See detailActive Management of Low-Voltage Networks for Mitigating Overvoltages due to Photovoltaic Units
Olivier, Frédéric ULg; Aristidou, Petros ULg; Ernst, Damien ULg et al

in IEEE Transactions on Smart Grid (2016), 2(7), 926-936

In this paper, the overvoltage problems that might arise from the integration of photovoltaic panels into low-voltage distribution networks is addressed. A distributed scheme is proposed that adjusts the ... [more ▼]

In this paper, the overvoltage problems that might arise from the integration of photovoltaic panels into low-voltage distribution networks is addressed. A distributed scheme is proposed that adjusts the reactive and active power output of inverters to prevent or alleviate such problems. The proposed scheme is model-free and makes use of limited communication between the controllers, in the form of a distress signal, only during emergency conditions. It prioritizes the use of reactive power, while active power curtailment is performed only as a last resort. The behavior of the scheme is studied using dynamic simulations on a single low-voltage feeder and on a larger network composed of 14 low-voltage feeders. Its performance is compared to a centralized scheme based on the solution of an Optimal Power Flow problem, whose objective function is to minimize the active power curtailment. The proposed scheme successfully mitigates overvoltage situations due to high photovoltaic penetration and performs almost as well as the Optimal Power Flow based solution with significantly less information and communication requirements. [less ▲]

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See detailNovel composite heterozygous mutation of the receptor for hCG and LH leading to male disorder of sexual development
Potorac, Iulia ULg; FUDVOYE, Julie ULg; GAILLEZ, Stephanie ULg et al

in Abstract book - 17th World Congress of Gynecological Endocrinology (2016, March)

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See detailOption Replication and the Performance of a Market Timer
Hübner, Georges ULg

in Studies in Economics & Finance (2016), 33(1), 2-25

The Treynor and Mazuy framework is a widely used return-based model of market timing. However, existing corrections to the regression intercept can be manipulated through derivatives trading. We propose ... [more ▼]

The Treynor and Mazuy framework is a widely used return-based model of market timing. However, existing corrections to the regression intercept can be manipulated through derivatives trading. We propose an adjustment based on Merton's option replication approach. The linear and quadratic coefficients of the regression are exploited to assess the cost of the replicating option that yields similar convexity for a passive portfolio. A similar reasoning applies for various timing patterns and in multi-factor models. The proposed framework induces a potential rebalancing risk and involves the delicate issue of choosing the cheapest option. We show that these issues can be overcome for reasonable tolerance levels. [less ▲]

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See detailDynamics of upstream movements of the European eel Anguilla anguilla in an inland area of the River Meuse over the last 20 years
Nzau Matondo, Billy ULg; Ovidio, Michaël ULg

in Environmental Biology of Fishes (2016), 99

The dynamics of upstream movements of the yellow eel Anguilla anguilla were investigated at Lixhe on the Belgian River Meuse in an inland fish pass regularly monitored from 1992 to 2014. Based on a ... [more ▼]

The dynamics of upstream movements of the yellow eel Anguilla anguilla were investigated at Lixhe on the Belgian River Meuse in an inland fish pass regularly monitored from 1992 to 2014. Based on a constant year-to-year sampling effort, we examined the abundance of ascending yellow eels and their body size, seasonal movement, and the associated water temperature and flow. Over the last 23 years, the number of ascending yellow eels has declined at an average 4.2% per year since 1992. The abundance of eels in 2014 is estimated at 4.5% of the ascending stock in 1992. We observed that some annual variations in eel abundance at Lixhe might be related to opening fish passes downstream of the study site. The results clearly demonstrated that long-term declining abundance of eels has resulted in increased sizes (mean increase, 4.1 mm per year since 1992) and temperatures triggering the upstream movement process (1.03°C per decade), with earlier dates for the last eel passages reducing the difference between temperature extremes of eel passages through the fish pass during the migration season. Eel movements occurred in spring and summer at low river discharge and were mainly triggered by high-temperature events. Eels have become larger with time because of improved feeding opportunities and more growth habitats available resulting from the long-term reduction in recruitment. This study highlights the importance of investigating long time spans for a better comprehension of the changes observed in yellow eels and for the optimization of management measures and future research. [less ▲]

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See detailAdolescence, et "double identité". Quand l’engagement radical violent devient une réponse à un questionnement identitaire
Garcet, Serge ULg

in L'Observatoire (2016), 86

L’engagement radical violent est caractérisé par la jeunesse de ses participants. Il apparaît comme une réponse individuelle à un questionnement identitaire dans lequel des processus cognitifs ... [more ▼]

L’engagement radical violent est caractérisé par la jeunesse de ses participants. Il apparaît comme une réponse individuelle à un questionnement identitaire dans lequel des processus cognitifs caractéristiques de l’adolescence sont associés aux représentations qu’engendre la problématique de la « double identité » chez les jeunes issus de l’immigration. L’article tente de décrire ce processus du point de vue psychologique tout en relevant le rôle déterminant tenu par les cognitions et les émotions sur l’adoption d’une posture victimaire derrière l’engagement radical. [less ▲]

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See detailGeschichtsvereine und Geschichtsbewusstsein in der DG (3. Teil)
Brüll, Christoph ULg

Article for general public (2016)

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See detailA "external" StandPoint on QMS
Massart, Sébastien ULg

Conference (2016, March)

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See detailRéforme policière et politique de sécurité en Belgique
Croquet, Alice ULg

in Revue Européenne de l'Action Publique (2016), 2

Cette brève publication revient sur la réforme des services de police de 1998 et sur le dispositif de politique de sécurité qu'elle a introduite.

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See detailCobalt-mediated radical polymerization of vinyl acetate and acrylonitrile in supercritical carbon dioxide
Kermagoret; Chau, Ngoc Do Quyen; Grignard, Bruno ULg et al

in Macromolecular Rapid Communications (2016), 39(6), 539-544

Cobalt-mediated radical polymerization (CMRP) of vinyl acetate (VAc) is successfully achieved in supercritical carbon dioxide (scCO 2 ). CMRP of VAc is conducted using an alkyl-cobalt(III) adduct that is ... [more ▼]

Cobalt-mediated radical polymerization (CMRP) of vinyl acetate (VAc) is successfully achieved in supercritical carbon dioxide (scCO 2 ). CMRP of VAc is conducted using an alkyl-cobalt(III) adduct that is soluble in scCO2 . Kinetics studies coupled to visual observations of the polymerization medium highlight that the melt viscosity and PVAc molar mass ( Mn ) are key parameters that affect the CMRP in scCO2. It is noticed that CMRP is controlled for M n up to 10 000 g mol−1 , but loss of control is progressively observed for higher molar masses when PVAc precipitates in the polymerization medium. Low molar mass PVAc macroinitiator, prepared by CMRP in scCO2 , is then successfully used to initiate the acrylonitrile polymerization. PVAc-b-PAN block copolymer is collected as a free flowing powder at the end of the process although the dispersity of the copolymer increases with the reaction time. Although optimization is required to decrease the dispersity of the polymer formed, this CMRP process opens new perspectives for macromolecular engineering in scCO2 without the utilization of fluorinated comonomers or organic solvents. [less ▲]

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See detailDe la nécessaire articulation entre une formation théorique et une formation pratique.présentation d'un dispositif pédagogique réflexif en contexte de stages cliniques
Vierset, Viviane ULg

in Pédagogie Médicale (2016)

Résumé. Contexte. La formation clinique au département de Gynécologie-Obstétrique (G-O) constitue le centre du projet pédagogique mis en place avec les stagiaires de 3° master et les médecins qui les ... [more ▼]

Résumé. Contexte. La formation clinique au département de Gynécologie-Obstétrique (G-O) constitue le centre du projet pédagogique mis en place avec les stagiaires de 3° master et les médecins qui les accompagnent. Problématique. Bien que la formation théorique soit organisée majoritairement sous la forme d’Apprentissage Par Problèmes (APP), d’Apprentissage du Raisonnement Clinique (ARC) et d’Apprentissage à la Résolution de Problèmes complexes (ARPc), le transfert des apprentissages n’est pas organisé sur le parcours des stages. Or, par essence, les stages cliniques correspondent au lieu de résurgence optimal des savoirs acquis et de leur mobilisation dans une logique de développement des compétences professionnelles. Finalité. Susciter l’articulation entre les lieux d’apprentissage in vitro (en laboratoire facultaire)) et in vivo (en terrain clinique) par l’apprentissage du transfert et de la pratique réflexive. Dispositif réflexif. Planifié dès 2008-2009 dans le cadre de la formation clinique des stagiaires de 3° master au sein du département de G-O, ce travail d’implantation est précédé de deux analyses, l’une concernant les besoins nécessaires à la profession (compétences professionnelles) et l’autre, les besoins des acteurs du terrain pédagogique clinique (stagiaires et superviseurs). Afin de répondre aux besoins évoqués tout en poursuivant l’objectif global du projet, le cadre conceptuel de l’Apprentissage et de l’Enseignement Contextualisé Authentiques (AECA) est proposé en tant que source de régulation du dispositif questionnant les situations vécues par l’apprenant ainsi que les postures d’apprentissage et d’accompagnement réflexifs. Bilan d’expérience. Tout en répondant à certains critères de l’AECA, le dispositif réflexif installé vise l’articulation entre les lieux de formation et propose une réponse à la plupart des besoins identifiés lors des deux analyses préliminaires. [less ▲]

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See detailSunday Comics Reloaded: Interview with Peter Maresca
Crucifix, Benoît ULg

Article for general public (2016)

Since 2005, Sunday Press has committed itself to reprinting early-twentieth-century comic strips at the scale of the original color Sunday supplement. Just as the graphic novel was demonstrating the ... [more ▼]

Since 2005, Sunday Press has committed itself to reprinting early-twentieth-century comic strips at the scale of the original color Sunday supplement. Just as the graphic novel was demonstrating the aesthetic and narrative importance of format, Peter Maresca was putting forward the same argument for his archival reprints. And so, Sunday Press demonstrated how pioneers of the comic strip approached the huge space of the newspaper page, and how readers would be confronted with it. If the publisher has given us to read differently the classic comics of Winsor McCay and Georger Herriman, Sunday Press has also sketched a larger picture of the first years of the comic strip, by giving a second chance to long-forgotten comics in its anthologies Forgotten Fantasy and Society is Nix. Today with ten years of experience and ten books in his catalogue, Peter Maresca tells us all about the origins of Sunday Press, the reprint process, and his editorial decisions, describing an enterprise that is profoundly rooted in a network of human relationships. [less ▲]

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See detailLa sauvegarde du Potentiel Economique, Scientifique et Industriel (PESI) comme pilier de la politique publique en Intelligence Stratégique (IS) 
Leroy, Patrick ULg

Learning material (2016)

Protecting the State’s Economic, Scientific and Industrial Potential is one of the main tasks dedicated to both security and intelligence agencies in Belgium. In the same way, Wallonia has implemented ... [more ▼]

Protecting the State’s Economic, Scientific and Industrial Potential is one of the main tasks dedicated to both security and intelligence agencies in Belgium. In the same way, Wallonia has implemented since 2007 a strategic intelligence public policy to favorize, among others, the competitivity of walloon’s small businesses, by using an active private/public « actors network ». We develop, first of all, the idea that security and protection contribute to enhance the competitivity of our companies and secondly, after the successive State’s reforms, that the Belgian intelligence community isn’t able to play today a fruitfull role in this domain that is nevertheless required by law. [less ▲]

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See detailText analytics in industry: Challenges, desiderata and trends
Ittoo, Ashwin ULg; Nguyen, Le Minh; van den Bosch, Antal

in Computers in Industry (2016), (78),

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See detailEditorial: Special issue on natural language processing and text analytics in industry
Ittoo, Ashwin ULg; Nguyen, Le Min; van den Bosch, Antal

in Computers in Industry (2016)

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See detailLatex, un peu, beaucoup (11. Multitraitement)
Dupont, Pascal ULg

in Losanges (2016), 32

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See detailCertificat successoral européen Aperçu et mise en oeuvre
Wautelet, Patrick ULg

Conference (2016, March)

Cette présentation a pour objectif de donner un aperçu général du fonctionnement du certificat successoral européen mis en place par le Règlement successions

Detailed reference viewed: 24 (0 ULg)