Last 7 days
Bookmark and Share    
Full Text
Peer Reviewed
See detailRespiratory Motion, Anterior Heart Displacement and Heart Dosimetry: Comparison Between Prone (Pr) and Supine (Su) Whole Breast Irradiation
Lakosi, Ferenc; GULYBAN, Akos ULg; Janvary, Levente et al

in Pathology Oncology Research (2015)

Detailed reference viewed: 23 (1 ULg)
Full Text
Peer Reviewed
See detailCrystallisation-driven self-assembly of poly(2-isopropyl-2- oxazoline)-block-poly(2-methyl-2-oxazoline) above the LCST
Legros, Camille ULg; De Pauw-Gillet, Marie-Claire ULg; Tam, Kam Chiu et al

in Soft Matter (2015)

The solution behaviour in water of a polyoxazoline-type block copolymer, namely poly(2- isopropyl-2-oxazoline)-block-poly(2-methyl-2-oxazoline), denoted as P(iPrOx-b-MeOx), above the lower critical ... [more ▼]

The solution behaviour in water of a polyoxazoline-type block copolymer, namely poly(2- isopropyl-2-oxazoline)-block-poly(2-methyl-2-oxazoline), denoted as P(iPrOx-b-MeOx), above the lower critical solution temperature (LCST) of the PiPrOx block was exploited to induce a temporary or permanent self-assembly. Spherical micelles were first obtained and could be disassembled in a reversible manner when kept for a short period of time (i.e. t < 1h30) above the LCST, and cooled down to room temperature. In contrast, annealing the copolymer solution for more than 1h30 at 65 °C induced the crystallisation of the PiPrOx block, as evidenced by wide angle X-ray scattering (WAXS) experiments. This crystallisationdriven self-assembly phenomenon resulted in different morphologies, including spherical and distorted crystallised micelles and micron-size fibers, their relative proportion varying with annealing time. Formation of micron-size range fiber-like structures might be explained by a re-organization of parent crystallised micelles. The crystal structure, as determined by WAXS, appeared to be identical to that of the PiPrOx homopolymer. [less ▲]

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailEmpirical model of a variable speed vapor injection compressor for air source heat pump dynamic modeling
Dechesne, Bertrand ULg; Bertagnolio, Stéphane

in International conference on compressors and their systems (2015)

Detailed reference viewed: 37 (1 ULg)
Full Text
Peer Reviewed
See detailInverse Finite Element Modeling for Characterization of Local Elastic Properties in Image-Guided Failure Assessment of Human Trabecular Bone
Zwahlen, Alexander; Christen, David; Ruffoni, Davide ULg et al

in JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME (2015), 137(1),

The local interpretation of microfinite element (mu FE) simulations plays a pivotal role for studying bone structure-function relationships such as failure processes and bone remodeling. In the past mu FE ... [more ▼]

The local interpretation of microfinite element (mu FE) simulations plays a pivotal role for studying bone structure-function relationships such as failure processes and bone remodeling. In the past mu FE simulations have been successfully validated on the apparent level however, at the tissue level validations are sparse and less promising. Furthermore, intratrabecular heterogeneity of the material properties has been shown by experimental studies. We proposed an inverse mu FE algorithm that iteratively changes the tissue level Young's moduli such that the mu FE simulation matches the experimental strain measurements. The algorithm is setup as a feedback loop where the modulus is iteratively adapted until the simulated strain matches the experimental strain. The experimental strain of human trabecular bone specimens was calculated from time-lapsed images that were gained by combining mechanical testing and synchrotron radiation microcomputed tomography (SR mu CT). The inverse mu FE algorithm was able to iterate the heterogeneous distribution of moduli such that the resulting mu FE simulations matched artificially generated and experimentally measured strains. [less ▲]

Detailed reference viewed: 20 (0 ULg)
Full Text
Peer Reviewed
See detailUsing local second gradient model and shear strain localisation to model the excavation damaged zone in unsaturated claystone
Pardoen, Benoît ULg; Levasseur, Séverine ULg; Collin, Frédéric ULg

in Rock Mechanics & Rock Engineering (2015), 48(2), 691-714

The drilling of galleries induces damage propagation in the surrounding medium and creates, around them, the excavation damaged zone (EDZ). The prediction of the extension and fracture structure of this ... [more ▼]

The drilling of galleries induces damage propagation in the surrounding medium and creates, around them, the excavation damaged zone (EDZ). The prediction of the extension and fracture structure of this zone remains a major issue, especially in the context of underground nuclear waste storage. Experimental studies on geomaterials indicate that localised deformation in shear band mode usually appears prior to fractures. Thus, the excavation damaged zone can be modelled by considering the development of shear strain localisation bands. In the classical finite element framework, strain localisation suffers a mesh-dependency problem. Therefore, an enhanced model with a regularisation method is required to correctly model the strain localisation behaviour. Among the existing methods, we choose the coupled local second gradient model. We extend it to unsaturated conditions and we include the solid grain compressibility. Furthermore, air ventilation inside underground galleries engenders a rock– atmosphere interaction that could influence the damaged zone. This interaction has to be investigated in order to predict the damaged zone behaviour. Finally, a hydromechanical modelling of a gallery excavation in claystone is presented and leads to a fairly good representation of the EDZ. The main objectives of this study are to model the fractures by considering shear strain localisation bands, and to investigate if an isotropic model accurately reproduces the in situ measurements. The numerical results provide information about the damaged zone extension, structure and behaviour that are in very good agreement with in situ measurements and observations. For instance, the strain localisation bands that develop in chevron pattern during the excavation and rock desaturation, due to air ventilation, are observed close to the gallery. [less ▲]

Detailed reference viewed: 60 (11 ULg)
Peer Reviewed
See detailLa muséalisation de l'espace urbain : Quand le musée de ville se met en scène dans les rues
Postula, Jean-Louis ULg

in Bergeron, Yves; Arsenault, Daniel; Provencher St-Pierre, Laurence (Eds.) Musées et muséologies : au délà des frontières : Les muséologies nouvelles en question (2015)

Detailed reference viewed: 29 (1 ULg)
Full Text
Peer Reviewed
See detailOne-year outcomes in 1,010 unselected patients treated with the PROMUS Element everolimus-eluting stent: the multicentre PROMUS Element European Post-Approval Surveillance Study
Thomas, MR; Birkemeyer, R; Schwimmbeck, P et al

in EuroIntervention : Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology (2015), 10

Aims: The PROMUS™ Element™ European Post-Approval Surveillance Study (PE-Prove) is a prospective, open-label, multicentre observational study designed to assess outcomes following PROMUS Element ... [more ▼]

Aims: The PROMUS™ Element™ European Post-Approval Surveillance Study (PE-Prove) is a prospective, open-label, multicentre observational study designed to assess outcomes following PROMUS Element everolimus-eluting stent implantation in an unselected patient population. Methods and results: A total of 1,010 patients were enrolled at 40 clinical sites in Europe, including 24.9% with medically treated diabetes, 50.0% with Type B2/C lesions, 6.1% with chronic total occlusion, 17.8% with acute myocardial infarction (MI ≤24 hours pre-procedure), and 20.1% with unstable angina. The target lesion was the culprit for ST-segment elevation MI in 7.3% of patients. The one-year, per patient target vessel failure rate was 6.2% (60/975), 3.4% (33) being related to the PROMUS Element stent. Rates of cardiac death, MI, and Academic Research Consortium (ARC) definite/probable stent thrombosis were 1.7%, 3.5%, and 0.6%, respectively. The target vessel revascularisation rate was 3.2% (31/975), 2.1% (20) being related to the PROMUS Element stent. Conclusions: In a large and relatively complex group of “real-world” patients, coronary artery revascularisation with the PROMUS Element everolimus-eluting stent provides favourable results with low event rates consistent with those reported for other contemporary drug-eluting stents. [less ▲]

Detailed reference viewed: 23 (0 ULg)
See detailAtlas des énergies mondiales. Quels choix pour demain?
Barré, Bertrand; Merenne-Schoumaker, Bernadette ULg

Book published by Autrement - Troisième édition (2015)

Ouvrage organisé en cinq parties : 1. Une consommation énergétique contrainte; 2. Les grandes énergies traditionnelles; 3. Les énergies renouvelables au coeur de la transition énergétique; 4. Géopolitique ... [more ▼]

Ouvrage organisé en cinq parties : 1. Une consommation énergétique contrainte; 2. Les grandes énergies traditionnelles; 3. Les énergies renouvelables au coeur de la transition énergétique; 4. Géopolitique de l'énergie; 5. Le temps de l'action [less ▲]

Detailed reference viewed: 21 (0 ULg)
See detailAtlas mondial des matières premières. Des besoins croissants, des ressources limitées
Merenne-Schoumaker, Bernadette ULg

Book published by Autrement - Deuxième édition (2015)

Une publication organisée en cinq parties : 1. Les produits miniers et énergétiques; 2. Les autres matières premières; 3. Des produits plus stratégiques que jamais; 4. Des enjeux économiques majeurs; 5 ... [more ▼]

Une publication organisée en cinq parties : 1. Les produits miniers et énergétiques; 2. Les autres matières premières; 3. Des produits plus stratégiques que jamais; 4. Des enjeux économiques majeurs; 5. Une gageure géopolitique pour l'avenir. [less ▲]

Detailed reference viewed: 25 (0 ULg)
Full Text
See detailEvolution et extinctions des ichthyosaures
Fischer, Valentin ULg

in L'écho des falaises (2015), 19

lchthyosaurs are marine reptiles that colonized numerous ecological niches during the Mesozoic. ln addition to their morphology similar to that of fast swimming sharks and teleosts, ichthyosaurs have the ... [more ▼]

lchthyosaurs are marine reptiles that colonized numerous ecological niches during the Mesozoic. ln addition to their morphology similar to that of fast swimming sharks and teleosts, ichthyosaurs have the particularity to go extinct before the CretaceousPalaeogene boundary, during the Cenomanian (early Late Cretaceous). Although many ichthyosaur-rich localities have been known for a long ti me, the extinction phases that marked the ir history were analysed and quantified in detail only recently. This article summarizes the evolutionary history of ichthyosaurs, with a focus on these extinctions phases. [less ▲]

Detailed reference viewed: 42 (0 ULg)
Full Text
See detailChine et matières premières : entre satisfaction des besoins et anticipation sur la raréfaction des ressources
Merenne-Schoumaker, Bernadette ULg

in GEO (2015), 77

L'article analyse les rapports entre la Chine et les matières premières en s'intéressant à cinq points : l'analyse des besoins, l'origine des matières premières consommées, les stratégies mises en oeuvre ... [more ▼]

L'article analyse les rapports entre la Chine et les matières premières en s'intéressant à cinq points : l'analyse des besoins, l'origine des matières premières consommées, les stratégies mises en oeuvre pour sécuriser son approvisionnement, les problèmes rencontrés à l'interne et les conséquences à l'échelle internationales. [less ▲]

Detailed reference viewed: 27 (0 ULg)
Full Text
Peer Reviewed
See detailZebrafish bone and general physiology are differently affected by hormones or changes in gravity.
Aceto, Jessica ULg; Nourizadeh-Lillabadi, Rasoul; Marée, Raphaël ULg et al

in PLoS ONE (2015), 10(6), 1-42

Teleost fish such as zebrafish (Danio rerio) are increasingly used for physiological, genetic and developmental studies. Our understanding of the physiological consequences of altered gravity in an entire ... [more ▼]

Teleost fish such as zebrafish (Danio rerio) are increasingly used for physiological, genetic and developmental studies. Our understanding of the physiological consequences of altered gravity in an entire organism is still incomplete. We used altered gravity and drug treatment experiments to evaluate their effects specifically on bone formation and more generally on whole genome gene expression. By combining morphometric tools with an objective scoring system for the state of development for each element in the head skeleton and specific gene expression analysis, we confirmed and characterized in detail the decrease or increase of bone formation caused by a 5 day treatment (from 5dpf to 10 dpf) of, respectively parathyroid hormone (PTH) or vitamin D3 (VitD3). Microarray transcriptome analysis after 24 hours treatment reveals a general effect on physiology upon VitD3 treatment, while PTH causes more specifically developmental effects. Hypergravity (3g from 5dpf to 9 dpf) exposure results in a significantly larger head and a significant increase in bone formation for a subset of the cranial bones. Gene expression analysis after 24 hrs at 3g revealed differential expression of genes involved in the development and function of the skeletal, muscular, nervous, endocrine and cardiovascular systems. Finally, we propose a novel type of experimental approach, the "Reduced Gravity Paradigm", by keeping the developing larvae at 3g hypergravity for the first 5 days before returning them to 1g for one additional day. 5 days exposure to 3g during these early stages also caused increased bone formation, while gene expression analysis revealed a central network of regulatory genes (hes5, sox10, lgals3bp, egr1, edn1, fos, fosb, klf2, gadd45ba and socs3a) whose expression was consistently affected by the transition from hyper- to normal gravity. [less ▲]

Detailed reference viewed: 86 (11 ULg)
Full Text
Peer Reviewed
See detailThe Tax Disputes and Litigation Review - Belgium
Docclo, Caroline ULg

in Whitehead, Simon (Ed.) The Tax Disputes and Litigation Review (2015)

Detailed reference viewed: 47 (0 ULg)
Full Text
Peer Reviewed
See detailThe retirement of the migrant labor force: pension portability and beyond
Jousten, Alain ULg

in CESifo Economic Studies (2015), 61(2), 416-437

The specificities of the workforce with a migrant background are often neglected in studies of retirement. Similarly, many studies of migration’s impact on pensions often focus on aggregate outcomes – ... [more ▼]

The specificities of the workforce with a migrant background are often neglected in studies of retirement. Similarly, many studies of migration’s impact on pensions often focus on aggregate outcomes – system sustainability or distributive characteristics. The present paper provides a fresh look at the nexus between these two literatures. It discusses the impact of the European social security coordination mechanisms on individual decision-making and on the functioning of social security systems – with a focus on retirement. The paper argues that such effects are non-negligible and are likely to have major policy consequences. [less ▲]

Detailed reference viewed: 25 (4 ULg)
Full Text
Peer Reviewed
See detailThe finite index basis property
Berthé, Valérie; De Felice, Clelia; Dolce, Francesco et al

in Journal of Pure and Applied Algebra (2015), 219(7), 25212537

Detailed reference viewed: 9 (1 ULg)
Full Text
Peer Reviewed
See detailMaximal bifix decoding
Berthé, Valérie; De Felice, Clelia; Dolce, Francesco et al

in Discrete Mathematics (2015), 338(5), 725742

Detailed reference viewed: 13 (4 ULg)
Full Text
Peer Reviewed
See detailBifix codes and interval exchanges
Berthé, Valérie; De Felice, Clelia; Dolce, Francesco et al

in Journal of Pure and Applied Algebra (2015), 219(7), 27812798

Detailed reference viewed: 11 (2 ULg)
Full Text
Peer Reviewed
See detailAcyclic, connected and tree sets
Berthé, Valérie; De Felice, Clelia; Dolce, Francesco et al

in Monatshefte für Mathematik (2015), 176(4), 521550

Detailed reference viewed: 11 (1 ULg)
Full Text
Peer Reviewed
See detailThe emergence of metabolomics as a key discipline in the drug discovery process
Fillet, Marianne ULg; Frederich, Michel ULg

in Drug Discovery Today: Technologies (2015)

Detailed reference viewed: 16 (3 ULg)
Full Text
Peer Reviewed
See detailConfusion des codes graphiques dans les papyrus latins
Rochette, Bruno ULg; Macedo, Gabriel ULg

in Capasso, Mario; De Nonno, Mario (Eds.) Miscellanea di studi in onore di Paolo Radiciotti (2015)

Detailed reference viewed: 39 (3 ULg)