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See detailReconstruction tomographique - Première approche
Seret, Alain ULg; Defrise, Michel

Book published by Presses Universitaires de Liège - First edition (2014)

First introduction to the field of (emission and transmission) tomography reconstruction : general principles, sinogram concept, backprojection operation, Radon transform, 2D and 3D analytic ... [more ▼]

First introduction to the field of (emission and transmission) tomography reconstruction : general principles, sinogram concept, backprojection operation, Radon transform, 2D and 3D analytic reconstruction, filtered backprojection, Feldkamp algorithm, iterative methods, algebraic and statistical approaches (Gauss and Poisson noise), 3D to 2D reduction. Full demonstration of most algorithms presented in the book are provided. [less ▲]

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See detailThe phycologist Pierre Compère: his contribution to cyanobacterial studies
Golubic, Stjepko; Wilmotte, Annick ULg

in Plant Ecology and Evolution (2014), 147(3), 307-310

At the occasion of the 80th birthday of Pierre Compère, his rich career as a phycologist and cyanobacteriologist is placed in the context of the advances of the scientific theories, the evolution of the ... [more ▼]

At the occasion of the 80th birthday of Pierre Compère, his rich career as a phycologist and cyanobacteriologist is placed in the context of the advances of the scientific theories, the evolution of the cyanobacterial taxonomy and the nomenclatural discussions linked to the utilization of two different Codes of nomenclature. [less ▲]

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See detailIsolement social, prévalence et facteurs de risque chez les personnes de 65 ans et plus en Belgique
Maggi, Patrick ULg; Delye, Samuel ULg; Vermeulen, Bram et al

in Nowik, Laurent; Thalineau, Alain (Eds.) Vieillir chez soi : Les nouvelles formes du maintien à domicile (2014)

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See detail"If it helps, i'll carry on" : Factors supporting the Participation of Native and Immigrants Youth in Belgium and Germany
Born, Michel ULg; Marzana, Daniela; Alfieri, Sara et al

in Journal of psychology: Interdisciplinary and Applied (2014), 148

This article is looking into some factors for Civic Participation and the intention to continue to participate among local (Study I) and immigrant (Study II) young people living in Belgium and Germany ... [more ▼]

This article is looking into some factors for Civic Participation and the intention to continue to participate among local (Study I) and immigrant (Study II) young people living in Belgium and Germany. The results provide the same results in the immigrant and in the native group. Once observable demographic factors are controlled, many of the differences found in other researches (immigrant youth less committed or subjected to other paths of participation) disappear. Applicative repercussions are discussed. [less ▲]

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See detailIon mobility-mass spectrometry to perform structural classifications of disulfide-bridged-peptides
Massonnet, Philippe ULg; Upert, Gregory; Morsa, Denis ULg et al

Poster (2014, November)

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See detailMicrowave-assisted extraction of pectin from unused pumpkin biomass
Košťálová, Zuzana; Aguedo, Mario ULg; Hromádková, Zdenka

Poster (2014, November)

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See detailLe Moyen Âge dans les jeux vidéo
Dozo, Björn-Olav ULg; Barnabé, Fanny ULg

Article for general public (2014)

Si le Moyen Âge peut sembler, de prime abord, une source d’inspiration particulièrement prolifique pour le jeu vidéo, c’est moins en tant que période historique qu’en tant que réservoir d’un imaginaire ... [more ▼]

Si le Moyen Âge peut sembler, de prime abord, une source d’inspiration particulièrement prolifique pour le jeu vidéo, c’est moins en tant que période historique qu’en tant que réservoir d’un imaginaire fantastique qu’il influence ce dernier. Cette influence remonte aux premières heures de l’histoire du médium : les jeux d’aventure textuels, par exemple, à la suite de l’œuvre initiatrice Adventure (William Crowther et Don Woods, 1977), prenaient généralement place dans un univers médiéval-fantastique largement inspiré de la licence Donjons et Dragons. La tendance récurrente à user d’un tel cadre thématique s’est ensuite maintenue sans discontinuer, accompagnant les évolutions du médium vidéoludique, comme en témoignent le nombre de jeux de rôle ou de jeux massivement multijoueurs qui, aujourd’hui encore, prennent place dans ce type d’univers. Pour ceux qui souhaiteraient s’imprégner de cette époque fascinante – tant pour son histoire que pour l’imaginaire qui lui est associé – nous avons sélectionné quelques œuvres à parcourir. [less ▲]

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See detailIntroduction aux BPF/GMP : Chapitre 2 Personnel
Marini Djang'Eing'A, Roland ULg

Learning material (2014)

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See detailProjections graphiques de quelques espaces de la vie sociale au Japon
Badir, Sémir ULg

in Lexia (2014), 17-18

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See detailPoints d'appui
Jacquemain, Marc ULg

in SociologieS (2014)

L'article discute un grand résumé de Jan Spurk. Il met le doigt sur la contradiction dans ce "grand résumé" entre l'assomption que je le "je" est au coeur du capitalisme contemporain et le fait de confier ... [more ▼]

L'article discute un grand résumé de Jan Spurk. Il met le doigt sur la contradiction dans ce "grand résumé" entre l'assomption que je le "je" est au coeur du capitalisme contemporain et le fait de confier au sujet la tâche de l'émancipation de ce même capitalisme. Il propose de relever, dans différents courants de la littérature contemporaine de sciences sociales, les éléments qui plaident pour un "sujet" doté d'une capacité empirique de résistance au capitalisme. [less ▲]

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See detailBook Review: Ralf Brand and Sarah Fregonese 2013: The Radicals’ City: Urban Environment, Polarisation, Cohesion. Surrey: Ashgate.
Farah, Jihad ULg

in International Journal of Urban and Regional Research (2014), 38(6),

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See detailPhenix 21. Morts et renaissances d’une région industrielle.
Pirot, Pascal ULg; Xhayet, Geneviève ULg; Destatte, Julien ULg et al

Learning material (2014)

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See detailQue devient la narration lorsqu’elle prend place dans un jeu vidéo ?
Barnabé, Fanny ULg

Article for general public (2014)

Les jeux vidéo sont-ils capables de prendre en charge la narration d’une histoire, au même titre que la littérature ou le cinéma ? Le jeu est-il fondamentalement narratif, ou le récit n’y joue-t-il qu’un ... [more ▼]

Les jeux vidéo sont-ils capables de prendre en charge la narration d’une histoire, au même titre que la littérature ou le cinéma ? Le jeu est-il fondamentalement narratif, ou le récit n’y joue-t-il qu’un rôle d’arrière-plan, de décoration ? Cette question constitue, dans le milieu de la recherche, une clef d’entrée privilégiée pour interroger les œuvres vidéoludiques en tant que produits culturels. Elle est également au centre de l’ouvrage "Narration et jeu vidéo. Pour une exploration des univers fictionnels", qui vient de paraître aux éditions Bebooks. [less ▲]

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See detailPlasma riche en plaquettes et lésions tendineuses
KAUX, Jean-François ULg; Drion, Pierre ULg; Croisier, Jean-Louis ULg et al

in Revue Médicale de Liège (2014), 69(Synthèse 2014), 72-77

Platelets contain growth factors released during their degranulation following activation. These growth factors promote tissue remodeling, wound healing and angiogenesis. Currently, the clinical effect of ... [more ▼]

Platelets contain growth factors released during their degranulation following activation. These growth factors promote tissue remodeling, wound healing and angiogenesis. Currently, the clinical effect of Platelet-Rich Plasma (PRP) is still discussed or even controversial. Our researches have evaluated the effectiveness of PRP on the healing of animal tendons and human suffering from chronic jumper's knee. [less ▲]

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See detailImprints of the quasar structure in time-delay light curves: Microlensing-aided reverberation mapping
Sluse, Dominique ULg; Tewes, M.

in Astronomy and Astrophysics (2014), 571(A60), 10

Owing to the advent of large area photometric surveys, the possibility to use broad band photometric data, instead of spectra, to measure the size of the broad line region of active galactic nuclei, has ... [more ▼]

Owing to the advent of large area photometric surveys, the possibility to use broad band photometric data, instead of spectra, to measure the size of the broad line region of active galactic nuclei, has raised a large interest. We describe here a new method using time-delay lensed quasars where one or several images are affected by microlensing due to stars in the lensing galaxy. Because microlensing decreases (or increases) the flux of the continuum compared to the broad line region, it changes the contrast between these two emission components. We show that this effect can be used to effectively disentangle the intrinsic variability of those two regions, offering the opportunity to perform reverberation mapping based on single band photometric data. Based on simulated light curves generated using a damped random walk model of quasar variability, we show that measurement of the size of the broad line region can be achieved using this method, provided one spectrum has been obtained independently during the monitoring. This method is complementary to photometric reverberation mapping and could also be extended to multi-band data. Because the effect described above produces a variability pattern in difference light curves between pairs of lensed images which is correlated with the time-lagged continuum variability, it can potentially produce systematic errors in measurement of time delays between pairs of lensed images. Simple simulations indicate that time-delay measurement techniques which use a sufficiently flexible model for the extrinsic variability are not affected by this effect and produce accurate time delays. [less ▲]

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See detailComment je traite … Recommandations pour surveiller et optimiser un traitement médicamenteux en cours
SCHEEN, André ULg

in Revue Médicale de Liège (2014), 69(11), 581-585

Any pharmacological treatment should ideally be effective and safe. The supervision of an ongoing therapy should control that individualized goals are reached while tolerance and safety are present. In ... [more ▼]

Any pharmacological treatment should ideally be effective and safe. The supervision of an ongoing therapy should control that individualized goals are reached while tolerance and safety are present. In case of not reaching the predefined objectives, the causes of failure should first be screened (for instance, exclusion of poor patient compliance), and the treatment should be then optimized : dose adjustment, add-on of another drug (if possible synergistic combination) and/or shift to a more effective pharmacological therapy. In some cases, therapeutic monitoring may be useful or even mandatory in order to better adjust drug dosing and thus guarantee both efficacy and safety. [less ▲]

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See detailHighly sophisticated compound droplets on fiber arrays
Weyer, Floriane ULg; Lismont, Marjorie ULg; Dreesen, Laurent ULg et al

Poster (2014, November)

The poster shows a drop of oil containing four soapy water droplets of four different colors : red, orange, green and blue. This sophisticated object is created thanks to a fiber array. Fiber networks ... [more ▼]

The poster shows a drop of oil containing four soapy water droplets of four different colors : red, orange, green and blue. This sophisticated object is created thanks to a fiber array. Fiber networks allow processes such as droplet motion, fragmentation, trapping, releasing, mixing and encapsulation. Therefore, by using a vertical fiber decorated with successive nodes, compound droplets can be created. A soapy water droplet, with a specific color, is placed at each intersection. Then, a silicon oil droplet glides along the vertical fiber, encapsulates and collects the water droplets at each node leading to the formation of a compound droplet with four different components. [less ▲]

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See detailEarly detection of university students in potential difficulty : a case study
Hoffait, Anne-Sophie ULg; Schyns, Michael ULg

Conference (2014, November)

Rate of success in the first year at University in Belgium is very low regarding other foreign universities. The University of Liege, as other Universities, has already taken different initiatives. But by ... [more ▼]

Rate of success in the first year at University in Belgium is very low regarding other foreign universities. The University of Liege, as other Universities, has already taken different initiatives. But by early identifying students who have a high probability to face difficulties if nothing is done, the Universities might develop adapted methods to attack the problem with more emphasis where it is more needed and when it is still possible. Thus we want to develop a decision tool able to identify these students to help them. For that, we consider three standard datamining methods: logistic regression, artificial neural networks and decision trees and focus on early detection, i.e. before starting at the University. Then, we suggest to adapt these three methods as well as the classification framework in order to increase the probability of correct identification of the students. In our approach, we do not restrict the classification to two extreme classes, e.g. failure or success, but we create subcategories for different levels of confidence: high risk of failure, risk of failure, expected success or high probability of success. The algorithms are modified accordingly and to give more weight to the class that really matters. Note that this approach remains valid for any other classification problems for which the focus is on some extreme classes; e.g. fraud detection, credit default... Finally, simulations are conducted to measure the performances of the three methods, with and without the suggested adaptation. We check if the factors of success/failure we can identify are similar to those reported in the literature. We also make a ``what-if sensitivity analysis''. The goal is to measure in more depth the impact of some factors and the impact of some solutions, e.g., a complementary training or a reorientation. [less ▲]

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