References of "2012"
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See detailResults of kidney transplantation from controlled donors after cardio-circulatory death: a single center experience.
Ledinh, H.; WEEKERS, Laurent ULiege; BONVOISIN, Catherine ULiege et al

in Transplant International (2012), 25

The aim of this study was to determine results of kidney transplantation (KT) from controlled donation after cardio-circulatory death (DCD). Primary end-points were graft and patient survival, and post ... [more ▼]

The aim of this study was to determine results of kidney transplantation (KT) from controlled donation after cardio-circulatory death (DCD). Primary end-points were graft and patient survival, and post-transplant complications. The influence of delayed graft function (DGF) on graft survival and DGF risk factors were analyzed as secondary end-points. This is a retrospective mono-center review of a consecutive series of 59 DCD-KT performed between 2005 and 2010. Overall graft survival was 96.6%, 94.6%, and 90.7% at 3 months, 1 and 3 years, respectively. Main cause of graft loss was patient's death with a functioning graft. No primary nonfunction grafts. Renal graft function was suboptimal at hospital discharge, but nearly normalized at 3 months. DGF was observed in 45.6% of all DCD-KT. DGF significantly increased postoperative length of hospitalization, but had no deleterious impact on graft function or survival. Donor body mass index >/=30 was the only donor factor that was found to significantly increase the risk of DGF (P < 0.05). Despite a higher rate of DGF, controlled DCD-KT offers a valuable contribution to the pool of deceased donor kidney grafts, with comparable mid-term results to those procured after brain death. [less ▲]

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See detailLes carrières professionnelles des cadres : regard croisé du genre et de l'âge
Grodent, Françoise ULiege

Scientific conference (2012, February)

Ce papier a pour objectif de réaliser une revue de littérature qui doit permettre de construire une recherche empirique visant à apporter une vision comparative des carrières des hommes et des femmes ... [more ▼]

Ce papier a pour objectif de réaliser une revue de littérature qui doit permettre de construire une recherche empirique visant à apporter une vision comparative des carrières des hommes et des femmes cadres en regard de trois groupes d’âge : les moins de 35 ans, les [35-50] ans et les plus de 50 ans. Nous considérons les deux sexes étant donné que les trajectoires professionnelles sont influencées par le sexe de la personne ainsi que par les stéréotypes et les rôles qui y sont directement associés (genre). Les générations, quant à elles, nous permettront de tenir compte de l’évolution des facteurs de contexte que sont notamment ces rôles attribués au masculin et au féminin à travers les époques. En effet, les constructions sociales liées au sexe des individus sont susceptibles de changer d’une génération à l’autre et donc d’agir distinctement sur les intentions de carrière. Le fait d’introduire la dimension générationnelle, en plus de celle du genre, est l’occasion d’aborder le concept d’intersectionnalité qui consiste en un croisement des groupes cibles propres à la gestion de la diversité. A l’issue de cet aperçu théorique faisant état de la littérature existante relative à cette thématique des carrières des individus occupant un poste à responsabilités, nous pourrons mettre en évidence différentes questions de recherche qu’il nous faudra, dans un second temps, confronter à la réalité du terrain. [less ▲]

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See detailDossier Texas - Alan Govenar
Sacré, Robert ULiege

Article for general public (2012)

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See detailLearning to play K-armed bandit problems
Maes, Francis ULiege; Wehenkel, Louis ULiege; Ernst, Damien ULiege

in Proceedings of the 4th International Conference on Agents and Artificial Intelligence (ICAART 2012) (2012, February)

We propose a learning approach to pre-compute K-armed bandit playing policies by exploiting prior information describing the class of problems targeted by the player. Our algorithm first samples a set of K ... [more ▼]

We propose a learning approach to pre-compute K-armed bandit playing policies by exploiting prior information describing the class of problems targeted by the player. Our algorithm first samples a set of K-armed bandit problems from the given prior, and then chooses in a space of candidate policies one that gives the best average performances over these problems. The candidate policies use an index for ranking the arms and pick at each play the arm with the highest index; the index for each arm is computed in the form of a linear combination of features describing the history of plays (e.g., number of draws, average reward, variance of rewards and higher order moments), and an estimation of distribution algorithm is used to determine its optimal parameters in the form of feature weights. We carry out simulations in the case where the prior assumes a fixed number of Bernoulli arms, a fixed horizon, and uniformly distributed parameters of the Bernoulli arms. These simulations show that learned strategies perform very well with respect to several other strategies previously proposed in the literature (UCB1, UCB2, UCB-V, KL-UCB and $\epsilon_n$-GREEDY); they also highlight the robustness of these strategies with respect to wrong prior information. [less ▲]

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See detailLa monnaie de sa pièce. Poétique et morale du macairisme dans les Physiologies
Stienon, Valérie ULiege

in Fix, Florence; Fougère, Marie-Ange (Eds.) L’argent et le rire, de Balzac à Mirbeau (2012)

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See detailRepeated cycles of DSS inducing a chronically relapsing inflammation: A novel model to study fibrosis using in vivo MRI T2 relaxometry
Breynaert, C; Dresselaers, T; Cremer, J et al

Poster (2012, February)

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See detailPropositions pour une politique de soutien des indépendants en difficulté
Van Caillie, Didier ULiege; Lambrecht, Johan

Book published by Fondation Roi Baudouin - 1ère édition (2012)

This study discusses seven proposals allowing to increase the efficiency of administrative and legal measures taken by Belgian Public Authorities to prevent and to tackle with the difficulties encountered ... [more ▼]

This study discusses seven proposals allowing to increase the efficiency of administrative and legal measures taken by Belgian Public Authorities to prevent and to tackle with the difficulties encountered by entrepreneurs confrontated to the first steps of a business decline. [less ▲]

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See detailBeleidsaanbevelingen ter ondersteuning van ondernemers in moeilijkheden
Van Caillie, Didier ULiege; Lambrecht, Johan

Book published by Koning Boudewijn Stichting - 1ère (2012)

This study proposes an extended discussion of 7 measures adapted for increasing the efficiency of administrative and legal measures taken in Belgium in order to sustain entrepreneurs confrontated to the ... [more ▼]

This study proposes an extended discussion of 7 measures adapted for increasing the efficiency of administrative and legal measures taken in Belgium in order to sustain entrepreneurs confrontated to the first steps of a business decline [less ▲]

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See detailLe ciel pour tous
Nazé, Yaël ULiege

Article for general public (2012)

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See detailIdentifying and computing nonlinear normal modes
Cammarano, A.; Carrella, A.; Renson, Ludovic ULiege et al

in Proceedings of the SEM IMAC XXX Conference (2012, February)

Non linear normal modes offer a rigorous framework, both mathematical and physical, for theoretical and experimental dynamical analysis. Albeit still in its infancy, the concept of non linear normal modes ... [more ▼]

Non linear normal modes offer a rigorous framework, both mathematical and physical, for theoretical and experimental dynamical analysis. Albeit still in its infancy, the concept of non linear normal modes has the potential of providing to both the academic and the industrial establishment a powerful tool for the analysis of non linear dynamical systems. However, in order to exploit the full potential of this theory (and its associated simulation capability), there is need to integrate it with other branches of non linear structural dynamics: namely, in order for the non linear normal modes of a real - physical - structure to be computed, there is need to identify and quantify its non linearity. In this paper, an identification method based on the measured Frequency Response Function (FRF) is employed to identify and quantify the system's non linearity before computing the system's non linear normal modes. [less ▲]

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See detailEuropean project, demo “NETFLEX” For large integration of renewables using DLR, PST and PMU.
Lilien, Jean-Louis ULiege

Conference (2012, February)

forecasting ampacity as a need for power system operation

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See detailInvisible computer for collaborative design : evaluation of a multimodal sketch-based environment
Defays, Aurore ULiege; Safin, Stéphane ULiege; Darses, Françoise et al

in Work: A Journal of Prevention, Assessment and Rehabilitation (2012), Supplement 1

In the areas of design, especially in architectural design, collaboration has become an important challenge. The specialization of skills increase, work teams are more and more extensive and the ... [more ▼]

In the areas of design, especially in architectural design, collaboration has become an important challenge. The specialization of skills increase, work teams are more and more extensive and the geographic distance between them increases too. The economic and ecological stakes related to remote collaboration are an evidence. This context involves the need to support most efficiently possible remote working meetings. We present the Distributed Collaborative Digital Studio (DSDC), a tool designed to recreate, in distant situations, the context of copresence meetings. This shared environment is created in the “invisible computer” approach. The idea is that the tool should disappear from user’s consciousness. Indeed, creative design activities require some fluidity in their process. Therefore, any involuntary interruption created by the system can potentially brake creativity. In this perspective, we investigate specifically the “invisibility” of our environment. To do this, we propose a framework for the operationalization of the concept and a methodology to test the system invisibility. This methodology was applied through a case study consisting of a corpus of 12 hours of remote collaborative design sessions with the DSDC. We highlight the learning effects while using our system, conclude on its effectiveness and discuss our methodology. [less ▲]

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See detailEstimation of human orientation based on silhouettes and machine learning principles
Pierard, Sébastien ULiege; Van Droogenbroeck, Marc ULiege

in International conference on pattern recognition applications and methods (ICPRAM) (2012, February)

Estimating the orientation of the observed person is a crucial task for home entertainment, man-machine interaction, intelligent vehicles, etc. This is possible but complex with a single camera because it ... [more ▼]

Estimating the orientation of the observed person is a crucial task for home entertainment, man-machine interaction, intelligent vehicles, etc. This is possible but complex with a single camera because it only provides one side view. To decrease the sensitivity to color and texture, we use the silhouette to infer the orientation. Under these conditions, we show that the only intrinsic limitation is to confuse the orientation q with the supplementary angle (that is 180°-theta), and that the shape descriptor must distinguish between mirrored images. In this paper, the orientation estimation is expressed and solved in the terms of a regression problem and supervised learning. In our experiments, we have tested and compared 18 shape descriptors; the best one achieves a mean error of 5:24°. However, because of the intrinsic limitation mentioned above, the range of orientations is limited to 180°. Our method is easy to implement and outperforms existing techniques. [less ▲]

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See detailUse of graphical modality in a collaborative design distant setting
Safin, Stéphane ULiege; Juchmes, Roland ULiege; Leclercq, Pierre ULiege

in Work: A Journal of Prevention, Assessment and Rehabilitation (2012), Supplement 1

In this paper, we present an original environment, the Distributed Collaborative Design Studio (DCDS) which allows multimodal real-time remote exchanges, and which aims at re-creating remotely the ... [more ▼]

In this paper, we present an original environment, the Distributed Collaborative Design Studio (DCDS) which allows multimodal real-time remote exchanges, and which aims at re-creating remotely the conditions of co-present meetings. This environment associates a videoconference tool (supporting verbal and non-verbal communication) and an original real-time shared digital hand-drawn sketches system (supporting graphical communication). The users can import documents and annotate them in real-time at distance. In this paper, we are interested in studying the use of the graphical modality (digital sketch and document annotations) as a tool for collective design and remote communication. This study takes place in the framework of a collaborative architectural design studio, which has taken place during 3 month, and gathering students from Belgium and France to work together in 3 small groups mainly at distance. The study focuses on the role of graphical modality in the synchronous remote meetings supported by the DCDS. We identify the types of digital annotations made on the imported document, thanks to the electronic pen, and their role in the cognitive processes of designing and in the collaboration and communication processes. We also identify the different practices of digital sketching, according to the group and its collaborative strategies. We discuss the utility of the graphical modality as an efficient support for collaborative synchronous activities and show that the DCDS environment supports different strategies of collaborative design (co-design and distributed design). We conclude on recommendations for improving the system and for designing sketch-based collaborative environments. [less ▲]

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See detailDes idées fausses et autres illusions en management
Choffray, Jean-Marie ULiege

Article for general public (2012)

L’objet de ce bref article est de revoir certaines idées fausses et autres illusions en management, dont les retombées dans la vie dépassent, de très loin, l’attention que nous devrions accorder à y ... [more ▼]

L’objet de ce bref article est de revoir certaines idées fausses et autres illusions en management, dont les retombées dans la vie dépassent, de très loin, l’attention que nous devrions accorder à y renoncer. [less ▲]

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See detailSuburban areas favoring energy efficiency (SAFE) : Rapport scientifique et technique final.
Marique, Anne-Françoise ULiege; de Meester, Tatiana; De Herde, André et al

Report (2012)

Rapport de recherches final présentant les résultats du projet de recherches SAFE (2009-2012). Le projet de recherches SAFE portait sur l'évaluation énergétique des quartiers périurbains existants dans le ... [more ▼]

Rapport de recherches final présentant les résultats du projet de recherches SAFE (2009-2012). Le projet de recherches SAFE portait sur l'évaluation énergétique des quartiers périurbains existants dans le but d'en améliorer l'efficience énergétique par le développement de nouveaux modes de conception et de planification des tissus périurbains. L'objectif concret de ce projet de recherche est d'offrir un outil informatique interactif, accessible sur le web (www.safe-energie.be), qui permette d'évaluer l'efficience énergétique des lotissements wallons existants et de comparer différentes stratégies de renouvellement périurbain. Cet outil est destiné à l'ensemble des acteurs du processus de conception, réalisation et rénovation du milieu urbain. L'outil informatique développé estl'aboutissement d'une recherche de pointe basée sur la modélisation énergétique de quartiers périurbains à l'aide de simulations du microclimat urbain (logiciel de CFD, etc), de simulations dynamiques des consommations énergétiques des bâtiments pendant leur utilisation et de simulations énergétiques des fragments urbains sur l'ensemble de leur cycle de vie (intégrant l'évaluation énergétique des bâtiments, du transport et des réseaux d'énergie). [less ▲]

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