References of "2007"
     in
Bookmark and Share    
Peer Reviewed
See detailLandslide detection from remote sensing images using statistical and ANN classification methods
Danneels, Gaëlle; Havenith, Hans-Balder ULg; Pirard, Eric ULg

in Geophysical Research Abstracts (2007)

Detailed reference viewed: 9 (0 ULg)
Full Text
Peer Reviewed
See detailRationalité et organisation
Robert, Jocelyne ULg

E-print/Working paper (2007)

Ce working paper présente les origines de la rationalité inscrite profondément dans notre culture et l'application aux organisations dans le taylorisme et la bureaucratie professionnelle de Max Weber ... [more ▼]

Ce working paper présente les origines de la rationalité inscrite profondément dans notre culture et l'application aux organisations dans le taylorisme et la bureaucratie professionnelle de Max Weber notamment. [less ▲]

Detailed reference viewed: 33 (7 ULg)
See detailParticipation politique et citoyenneté des populations d’origine immigrée
Martiniello, Marco ULg; Bousetta, Hassan ULg

in Martiniello, Marco; Rea, Andrea; Dassetto, Felice (Eds.) Immigration et intégration en Belgique francophone. Etat des savoirs (2007)

Detailed reference viewed: 86 (20 ULg)
Full Text
Peer Reviewed
See detailHybridization And Morphogenetic Variation In The Invasive Alien Fallopia (Polygonaceae) Complex In Belgium
Tiebre, Ms.; Bizoux, Jean-Philippe ULg; Hardy, Oj. et al

in American Journal of Botany (2007), 94(11), 1900-1910

The invasive alien knotweeds, Fallopia spp. (Polygonaceae), are some of the most troublesome invasive species in Europe and North America. Invasive success in Fallopia may be enhanced by multiple ... [more ▼]

The invasive alien knotweeds, Fallopia spp. (Polygonaceae), are some of the most troublesome invasive species in Europe and North America. Invasive success in Fallopia may be enhanced by multiple hybridization events. We examined the pattern of hybridization and its evolutionary consequences in Belgium with a concerted analysis of ploidy levels (chromosome counts and flow cytometry), morphological variation, and genetic variation (RAPDs). At least four taxa with different ploidy levels were part of the pattern of invasion in Belgium. Hybrid F.3bohemica with various chromosome numbers restored the genotypic diversity that was lacking in the parental species. Hybrid genotypes were mainly assigned to a specific genetic pool and not to a mixture between the genetic pools of the putative parental species as would be expected for hybrids. Parental species and hexaploid hybrids differed significantly for a set of well-defined morphological characters, enabling future researchers to distinguish these taxa. On the basis of our results, the importance of hybridization has probably been underestimated in large parts of the adventive range of alien Fallopia species, pointing to the need for concerted molecular and morphological analyses in the study of the evolutionary consequences of hybridization. [less ▲]

Detailed reference viewed: 35 (1 ULg)
Full Text
Peer Reviewed
See detailMolecular organization of surfactin-phospholipid monolayers: Effect of phospholipid chain length and polar head
Bouffioux, O.; Berquand, A.; Eeman, M. et al

in Biochimica et Biophysica Acta - Biomembranes (2007), 1768(7), 1758-1768

Mixed monolayers of the surface-active lipopeptide surfactin-C-15 and various lipids differing by their chain length (DMPC, DPPC, DSPC) and polar headgroup (DPPC, DPPE, DPPS) were investigated by atomic ... [more ▼]

Mixed monolayers of the surface-active lipopeptide surfactin-C-15 and various lipids differing by their chain length (DMPC, DPPC, DSPC) and polar headgroup (DPPC, DPPE, DPPS) were investigated by atomic force microscopy (AFM) in combination with molecular modeling (Hypermatrix procedure) and surface pressure-area isotherms. In the presence of surfactin, AFM topographic images showed phase separation for each surfactin-phospholipid system except for surfactin-DMPC, which was in good agreement with compression isotherms. On the basis of domain shape and line tension theory, we conclude that the miscibility between surfactin and phospholipids is higher for shorter chain lengths (DMPC > DPPC > DSPC) and that the polar headgroup of phospholipids influences the miscibility of surfactin in the order DPPC > DPPE > DPPS. Molecular modeling data show that mixing surfactin and DPPC has a destabilizing effect on DPPC monolayer while it has a stabilizing effect towards DPPE and DPPS molecular interactions. Our results provide valuable information on the activity mechanism of surfactin and may be useful for the design of surfactin delivery systems. (c) 2007 Elsevier B.V. All rights reserved. [less ▲]

Detailed reference viewed: 20 (8 ULg)
Full Text
Peer Reviewed
See detailEditorial Report 2006
Denoël, Mathieu ULg

in Amphibia-Reptilia (2007), 28(3), 455-456

Detailed reference viewed: 13 (0 ULg)
Full Text
Peer Reviewed
See detailNaming actions and objects in bilingual aphasia : a multiple case study
Poncelet, Martine ULg; Majerus, Steve ULg; Raman, Ilhan et al

in Brain & Language (2007), 103

Detailed reference viewed: 32 (4 ULg)
Full Text
Peer Reviewed
See detailPlane strain test for metal sheet characterization
Flores, Paulo; Bonnet, Félix; Habraken, Anne ULg

in Key Engineering Materials [=KEM] (2007), 344

This article shows the influence of a plane strain test specimen geometry on the measurable strain field and the influence of free edge effects over the stress computation. The experimental strain field ... [more ▼]

This article shows the influence of a plane strain test specimen geometry on the measurable strain field and the influence of free edge effects over the stress computation. The experimental strain field distribution is measured over the whole deformable zone of a plane strain test specimen by an optical strain gauge. The chosen material is the DC06 IF steel of 0.8 mm thickness. The stress field is computed for several geometries at different strain levels by a Finite Element (FE) commercial code (Samcef ®). The results show that the stress field is sensitive to the specimen’s geometry and also to the tested material (strain field behavior is independent of material) and, based on results, an optimal specimen geometry is proposed in order to minimized the stress computation error. [less ▲]

Detailed reference viewed: 107 (12 ULg)
Full Text
Peer Reviewed
See detailLes contextes alimentaires vus, commentés et dessinés par les adolescents. Recherche sur les représentations et les pratiques socio-alimentaires, selon une démarche multi-méthodologique
D'Amore, Salvatore ULg

in Bulletin de Psychologie (2007), 60(6), 527-544

The objective of this study is to describe the eating representations and practices among 60 Roman high-school boys and girls through a complex methodology scheme that associates different techniques ... [more ▼]

The objective of this study is to describe the eating representations and practices among 60 Roman high-school boys and girls through a complex methodology scheme that associates different techniques (word-association network, semi-directive interviews, test on the drawing of eating contexts, eating attitudes scale). As a result, it emerges that there are two differentiated models of relationship – depending on the sex and the socio-professional category the high-school pupils belong to – to eating and body. A protective model, typical among boys, shows an essentially pleasure-based relationship to eating and body. Eating contexts are lived in a conflicting (family) and play (friends) manner. This model seems to be a factor of preservation against eating pathology risks. On the contrary, a model that presents risks of eating disorders, typical among girls, shows a more complex relationship to eating and to body, characterized by normative aspects that girls shall conform to and/or transgress, according to the eating context. In this kind of relationship, the test on the drawing of the family eating context shows, among other things, the absence of any contact with food. [less ▲]

Detailed reference viewed: 129 (23 ULg)
See detailEléments de bioinformatique v3.0
Peulen, Olivier ULg

Learning material (2007)

Detailed reference viewed: 23 (9 ULg)
See detailEffect of aggressive encounters on plasma progesterone, corticosterone and corticosteroid binding capacity
Charlier, Thierry ULg; Hammond, Geoffrey L; Soma, Kiran K

Poster (2007)

Detailed reference viewed: 9 (1 ULg)
Full Text
See detailp27Kip1 independently promotes neuronal differentiation and migration in the cerebral cortex.
Nguyen, Laurent ULg; Besson, A.; Heng, J Ik-Tsen et al

in Bulletin et Mémoires de l'Académie Royale de Médecine de Belgique (2007), 162(5-6), 310-4

The generation of glutamatergic neurons by stem and progenitor cells is a complex process involving the tight coordination of multiple cellular activities, including cell cycle exit, initiation of ... [more ▼]

The generation of glutamatergic neurons by stem and progenitor cells is a complex process involving the tight coordination of multiple cellular activities, including cell cycle exit, initiation of neuronal differentiation and cell migration. The mechanisms that integrate these different events into a coherent program are not well understood. Here we show that the cyclin-dependent kinase inhibitor p27Kip1 plays an important role in neurogenesis in the mouse cerebral cortex, by promoting the differentiation and radial migration of cortical projection neurons. Importantly, p27Kip1 promotes neuronal differentiation and neuronal migration via two distinct mechanisms, which are themselves independent of the cell cycle regulatory function of p27Kip1. p27Kip1 inactivation by gene targeting or RNA interference results in neuronal differentiation and radial migration defects, demonstrating that p27Kip1 regulates cell migration in vivo. The differentiation defect, but not the migration defect, is rescued by overexpression of the proneural gene Neurogenin 2. p27Kip1 acts by stabilizing Neurogenin 2 protein, an activity carried by the N-terminal half of the protein. The migration defect resulting from p27Kp1 inactivation is rescued by blocking RhoA signalling, an activity that resides in the c-terminal half of p27Kip1. Thus, p27Kip1 plays a key role in cortical development, acting as a modular protein that independently regulates and couples multiple cellular pathways contributing to neurogenesis. [less ▲]

Detailed reference viewed: 75 (10 ULg)
Full Text
See detailSome Considerations on the Center of the Main Interests as Jurisdictional Test Under the European Insolvency Regulation
Wautelet, Patrick ULg

in Affaki, Georges (Ed.) Cross-border insolvency and conflicts of jurisdictions : a US-EU experience (2007)

The paper explores the concept of the 'Center of the Main Interests' which plays a key role under the European Insolvency Regulation to allocation jurisdiction in international insolvency proceedings. The ... [more ▼]

The paper explores the concept of the 'Center of the Main Interests' which plays a key role under the European Insolvency Regulation to allocation jurisdiction in international insolvency proceedings. The paper reviews the case law of courts of EU Member States and the first cases decided by the European Court of Justice in order to draw some preliminary lessons on how to identify where the Center of the Main Interests of the debtor lies. [less ▲]

Detailed reference viewed: 150 (4 ULg)
Full Text
Peer Reviewed
See detailIncreased Inflammation Delays Wound Healing in Mice Deficient in Collagenase-2 (MMP-8)
Gutierrez-Fernandez, A.; Inada, M.; Balbin, M. et al

in FASEB Journal (2007), 21(10), 2580-91

Matrix metalloproteinases (MMPs) have been implicated in numerous tissue-remodeling processes. The finding that mice deficient in collagenase-2 (MMP-8) are more susceptible to develop skin cancer ... [more ▼]

Matrix metalloproteinases (MMPs) have been implicated in numerous tissue-remodeling processes. The finding that mice deficient in collagenase-2 (MMP-8) are more susceptible to develop skin cancer, prompted us to investigate the role of this protease in cutaneous wound healing. We have observed a significant delay in wound closure in MMP8-/- mice and an altered inflammatory response in their wounds, with a delay of neutrophil infiltration during the first days and a persistent inflammation at later time points. These changes were accompanied by alterations in the TGF-beta1 signaling pathway and by an apoptosis defect in MMP8-/- mice. The delay in wound healing observed in MMP8-/- mice was rescued by bone marrow transplantation from wild-type mice. Analysis of other MMPs showed that MMP8-/- mice had a significant increase in the expression of MMP-9, suggesting that both proteases might act coordinately in this process. This possibility was further supported by the novel finding that MMP-8 and MMP-9 form specific complexes in vivo. Taken together, these data indicate that MMP-8 participates in wound repair by contributing to the resolution of inflammation and open the possibility to develop new strategies for treating wound healing defects. [less ▲]

Detailed reference viewed: 63 (1 ULg)
Peer Reviewed
See detailMulti-Camera People Tracking by Collaborative Particle Filters and Principal Axis-Based Integration
Du, Wei ULg; Piater, Justus ULg

in Asian Conference on Computer Vision (2007)

Detailed reference viewed: 21 (0 ULg)
Full Text
Peer Reviewed
See detailModern electrophysiological methods for brain-computer interfaces.
Grave de Peralta Menendez, Rolando; Noirhomme, Quentin ULg; Cincotti, Febo et al

in Computational Intelligence & Neuroscience (2007)

Modern electrophysiological studies in animals show that the spectrum of neural oscillations encoding relevant information is broader than previously thought and that many diverse areas are engaged for ... [more ▼]

Modern electrophysiological studies in animals show that the spectrum of neural oscillations encoding relevant information is broader than previously thought and that many diverse areas are engaged for very simple tasks. However, EEG-based brain-computer interfaces (BCI) still employ as control modality relatively slow brain rhythms or features derived from preselected frequencies and scalp locations. Here, we describe the strategy and the algorithms we have developed for the analysis of electrophysiological data and demonstrate their capacity to lead to faster accurate decisions based on linear classifiers. To illustrate this strategy, we analyzed two typical BCI tasks. (1) Mu-rhythm control of a cursor movement by a paraplegic patient. For this data, we show that although the patient received extensive training in mu-rhythm control, valuable information about movement imagination is present on the untrained high-frequency rhythms. This is the first demonstration of the importance of high-frequency rhythms in imagined limb movements. (2) Self-paced finger tapping task in three healthy subjects including the data set used in the BCI-2003 competition. We show that by selecting electrodes and frequency ranges based on their discriminative power, the classification rates can be systematically improved with respect to results published thus far. [less ▲]

Detailed reference viewed: 18 (3 ULg)
Full Text
Peer Reviewed
See detailIncidence and distribution of lower extremity deep venous thrombosis at indirect computed tomography venography in patients suspected of pulmonary embolism.
NCHIMI LONGANG, Alain ULg; Ghaye, Benoit; Noukoua, Charlemagne T. et al

in Thrombosis and Haemostasis (2007), 97(4), 566-72

Indirect computed tomography (CT) venography reportedly provides high accuracy for detection of venous thrombosis in patients suspected of pulmonary embolism (PE). Nevertheless, the extent of the scanning ... [more ▼]

Indirect computed tomography (CT) venography reportedly provides high accuracy for detection of venous thrombosis in patients suspected of pulmonary embolism (PE). Nevertheless, the extent of the scanning range for lower limb and abdominal veins remains to be determined. It was the objective of this study to investigate the distribution of venous thrombosis in order to identify the most appropriate extent of scanning range when using CT venography. We reviewed 1,408 combined CT pulmonary angiographies (CTPA) and indirect CT venographies of the lower limbs, performed in patients suspected of PE. Percentage of venous thromboembolism (VTE), which includes PE and/or venous thrombosis was calculated. Location and the upper end of clots were recorded in 37 venous segments per patient from calf to diaphragm. PE, venous thrombosis and VTE, were found respectively in 272 (19.3%), 259 (18.4%) and 329 (23.4%) patients. Addition of CT venography to CTPA increased depiction of VTE in 17.3%. The upper end of venous thrombosis was located below the knee in 48%, between knee and inguinal ligament in 36% of the patients, and above the inguinal ligament in 15%. Ninety-six patients had thrombosis in a single vein, of which none occurred above the iliac crests in a patient without PE at CTPA. In conclusion, when added to CTPA, optimal scanning of CT venography should extent from calves to the iliac crests in patients suspected of VTE. [less ▲]

Detailed reference viewed: 18 (1 ULg)