References of "2012"
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See detailChronologie du bâti par l’archéométrie
Blain, Sophie ULiege

Scientific conference (2012, April 13)

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See detailparticipation politique, diaspora congolaise et transnationalismes
Demart, Sarah ULiege; Bodeux, Leila

Conference (2012, April 13)

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See detailmigrations congolaises en Belgique et géographies religieuses
Demart, Sarah ULiege; Melice, Anne ULiege; Meiers, Bénédicte ULiege

Conference (2012, April 13)

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See detailThe new institutional settlement in EU financial regulation: constitutionalizing regulatory coopetition?
Van Cleynenbreugel, Pieter ULiege

Conference (2012, April 13)

I presented a part of my doctoral research at this U.S. doctoral conference.

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See detailRosmarie Waldrop
Delville, Michel ULiege

Article for general public (2012)

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See detailCoupling Cell Mechanics and Intracellular Signalling: Mechanotransduction through ERK
Kerkhofs, Johan ULiege; Geris, Liesbet ULiege; Bosmans, Bart et al

in Middleton, John (Ed.) The Proceedings of the 10th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering. Hotel Berlin, Berlin, Germany, April 7th – 11th, 2012 pages:0-0 (2012, April 12)

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See detailMonstrosity, Hunger, and Resistance
Delville, Michel ULiege; Norris, Andrew

Conference (2012, April 12)

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See detailMagnetic shielding properties of a cut superconducting hollow cylinder : modelling and experiment
Vanderbemden, Philippe ULiege; Elschner, Steffen; Hobl, A et al

Conference (2012, April 11)

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See detailOptimisation 3D du chargement de conteneurs pour le transport aérien
Paquay, Célia ULiege; Limbourg, Sabine ULiege; Schyns, Michael ULiege

in LigéRO (Ed.) Proceedings ROADEF 2013 (2012, April 11)

De nos jours, décider comment remplir des conteneurs avec des colis est une activité courante aussi bien dans le domaine du transport routier qu’aérien. Ce type de question est apparentée aux problèmes de ... [more ▼]

De nos jours, décider comment remplir des conteneurs avec des colis est une activité courante aussi bien dans le domaine du transport routier qu’aérien. Ce type de question est apparentée aux problèmes de Bin-Packing(BPP) en recherche opérationnelle. En termes économiques, ces opérations doivent mener à une solution qui satisfait de nombreuses contraintes physiques, être réalisées rapidement et de sorte à maximiser certains critères. Typiquement, on tentera de charger un maximum de colis dans un minimum de conteneurs pour réduire les coûts. [less ▲]

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See detailOn the accurate selection of asymptotic detection thresholds for Infit and Outfit indexes of person fit
Magis, David ULiege; Raîche, Gilles; Béland, Sébastien

Conference (2012, April 11)

It exists a bunch of person fit indexes but Lz (Drasgow, Levine, & Williams, 1985), Infit mean square W (Wright & Masters, 1982) and Outfit mean square U (Wright & Stone, 1979) are certainly the most ... [more ▼]

It exists a bunch of person fit indexes but Lz (Drasgow, Levine, & Williams, 1985), Infit mean square W (Wright & Masters, 1982) and Outfit mean square U (Wright & Stone, 1979) are certainly the most popular. However, they have the undesirable property that their limiting distribution depends on the true ability level, which is generally unknown. In addition, the asymptotic distribution of U and W indexes was not clearly stated. Snijders (2001) proposed a generalization of the index Lz to incorporate estimated ability levels in its computation, and derived subsequent asymptotic normality of this modified Lz* index. The purpose of this talk is threefold. First, the generalization of Lz to Lz* is briefly sketched. Second, it is shown how this generalization can be successfully applied to both U and W indexes, yielding generalized U* and W* indexes respectively. Third, the accuracy of generalized indexes in detecting person (mis)fit is assessed through a simulation study. Three situations were investigated: (a) absence of misfit; (b) presence of cheating (yielding spuriously high scores); (c) presence of inattention (yielding spuriously low scores). Several conditions were varied, such as test length and aberrance rates when misfit was introduced. Response patterns were generated under the Rasch model and maximum likelihood estimation was performed to obtain the ability estimates. Several significance levels were selected. It is observed, that the generalized indexes Lz*, U* and W* better recover the significance level than their standard alternatives Lz, U and W respectively, while they are more powerful in identifying the two types of person misfit. In particular, the modified index W* has the best improvement in performance with respect to its original version W. It is concluded that Snijders' generalization of Lz index to Lz* is also accurate for U and W indexes under Rasch modelling. Possible extensions to other person fit indexes, such as ECI indexes (Tatsuoka, 1984), other ability estimators, and other IRT models are eventually briefly discussed. [less ▲]

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See detailLe "style" de Heidegger - entre éducation, philosophie et politique
Pieron, Julien ULiege

Scientific conference (2012, April 11)

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See detailClimat: nous n'avons pas de temps à perdre
Berger, A; Callens, I; Bouckaert, T et al

Article for general public (2012)

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See detailLa bande dessinée belge avant Hergé. Quelle histoire ?
Paques, Frédéric ULiege

in Comicalités : Études de Culture Graphique (2012, April 11)

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See detailAnalyse politologique de la répression du négationnisme et de ses enjeux mémoriels en Belgique
Grandjean, Geoffrey ULiege

Scientific conference (2012, April 10)

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See detailRéponses du Martin-pêcheur huppé Alcedo cristata à la perturbation de ses sites de nidification
Kisasa Kafutshi, Robert

in Malimbus (2012), 34

From 2004 to 2009, two colonies of Malachite Kingfisher were monitored by ringing the nestlings and adults, counting eggs and observing parental activity at the nests. Results show that 10 % of nests were ... [more ▼]

From 2004 to 2009, two colonies of Malachite Kingfisher were monitored by ringing the nestlings and adults, counting eggs and observing parental activity at the nests. Results show that 10 % of nests were destroyed by people in the Symphonies site as against 78 % in the Monastery site. Consequently, the number of nests available for breeding is lower at Monastery than at Symphonies. The number of fledged chicks per nest at Symphonies was twice that at the Monastery. Site fidelity is higher for the adults in the Symphonies site (26 %) than at the Monastery (11 %). This suggests that the Monastery site is less favourable to the survival of the Malachite Kingfisher than the Symphonies site. The best strategy to protect this species seems to be the maintenance of a good number of nesting sites. [less ▲]

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See detailTiO2 templated multilayer films used as high efficiency photoelectrode in liquid or solid DSSCs
Dewalque, Jennifer ULiege; Cloots, Rudi ULiege; Mathis, François ULiege et al

Conference (2012, April 10)

Mesoporous anatase thin films are very promising materials to act as electrode in dye-sensitized solar cells. Randomly oriented nanocrystalline TiO2 particles are usually used to prepare photoelectrodes ... [more ▼]

Mesoporous anatase thin films are very promising materials to act as electrode in dye-sensitized solar cells. Randomly oriented nanocrystalline TiO2 particles are usually used to prepare photoelectrodes with a thickness of 10-15 µm. Templated-assisted dip-coating techniques are used to obtain thin films with ordered porosity. However, monolayer films prepared by dip-coating from a solution suffer from a low quantity of active material with a limited surface area, leading to poor photovoltaic performances. Therefore a multilayer deposition process is needed to increase the film thickness along with surface area. Multilayer dip-coating procedures have already been reported but are usually characterized by a lack of linearity in the evolution of parameters (roughness, surface area, PV performances) as the number of layer increases. In this study, we investigate a dip-coating-based multilayer deposition technique delaying these limitations. First, the influence of the template on the film organization and porosity is studied in terms of long-range order, percentage of porosity, pore size, surface area and pores connectivity. Different techniques such as transmission electron microscopy (TEM), atmospheric poroellipsometry (AEP) and UV-visible absorption spectroscopy (UV-vis.) have been used to describe the microstructural features of the films. The film exhibiting the highest dye loading was selected and its thickness gradually increased up to 4 µm. Finally, the photovoltaic performances of the thick films (1 to 4 µm) have been evaluated in combination with the N719 dye and a liquid electrolyte and show excellent efficiency (6.1%) when compared to values reported in the literature. Such mesostructured films were compared in terms of photovoltaic performance with TiO2 nanoparticles films, generally used in DSSC. Films were further evaluated by Rutherford Backscattering Spectrometry (RBS) as high performance photoelectrode in solid-state DSSCs, in combination with Z907 dye and Spiro-OMeTAD as solid electrolyte. [less ▲]

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