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See detailLa peau infectée par des bactéries au cours des hémopathies malignes.
FRANCHIMONT, Claudine ULg; SZEPETIUK, Grégory ULg; LESUISSE, Marianne et al

in Dermatologie Actualité (2012), 133

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See detailLa peau, le froid et les sports d'hiver
Claes, G.; Henry, Frédérique ULg; Letawe, C. et al

in Revue Médicale de Liège (2001), 56(4), 257-60

Winter sports are responsible for various dermatoses which could be often avoided by simple preventive procedures. Both the severity and duration of cold exposure combined with wind speed, altitude and ... [more ▼]

Winter sports are responsible for various dermatoses which could be often avoided by simple preventive procedures. Both the severity and duration of cold exposure combined with wind speed, altitude and environmental hygrometric value govern the potential types of cold injuries. [less ▲]

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See detailPeaufiner la dermatopathologie fonctionnelle, la dermometrologie et la mecanobiologie.
Pierard, Gérald ULg; Pierard, Claudine ULg; Hermanns-Lê, Trinh ULg et al

in Revue Médicale de Liège (2007), 62 Spec No

Dermatopathology is a tool using the microscopic examination for diagnosing cutaneous diseases. The frontiers of its field of interest were extended by exploring the physiopathology of skin functional ... [more ▼]

Dermatopathology is a tool using the microscopic examination for diagnosing cutaneous diseases. The frontiers of its field of interest were extended by exploring the physiopathology of skin functional properties. An example is provided by the evaluation of alterations of skin suppleness in various connective tissue disorders. This approach takes profit from both conventional histology and histochemistry. Immunohistology targeting dermal dendrocytes reveals their various shapes reflecting the modifications in tensegrity under the control of mechanobiology. The latter property is an indicator of the evolution and severity of the connective tissue changes. Electron microscopy is also very instructive in this field. The in vivo examination by dermoscopy highlights a similar mechanism involving the melanocytes. From an engineering point of view, the skin and subcutaneous tissue represent an integrated load-transmitting structure. It is subjected to intrinsic and environmental influences. Some models were offered to explain how skin withstands and transmits loads through deforming appropriately or abnormally according to disorders of the connective tissue structure. We report a brief review of the principles of interpretation of the measurements of the skin biomechanical properties, and the histological presentations of mechanobiology. The applications of such investigations are summarized in the Ehlers-Danlos syndrome, inguinal hernias, gravitational syndrome, diabetes, scleroderma, hemodialysed patients, in case of growth hormone administration and during climacteric. [less ▲]

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See detailPEB: thermal oriented architectural modeling for building energy efficiency regulations
Leclercq, Pierre ULg; Juchmes, Roland ULg; Delfosse, Vincent ULg et al

Poster (2011)

As part of the overhauling of the building energy efficiency regulations (following European directive 2002/91/CE), the Wallonia and Brussels-Capital Region commissioned the LUCID to develop an optional ... [more ▼]

As part of the overhauling of the building energy efficiency regulations (following European directive 2002/91/CE), the Wallonia and Brussels-Capital Region commissioned the LUCID to develop an optional 3D graphic encoding module to be integrated with the core energy efficiency computation engine developed by Altran Europe. Our contribution consisted mostly in analyzing the target users’ needs and representations (ergonomics, UI, interactions) and implementing a bespoke 3D CAD modeler dedicated to thermal models of buildings taking into account the various geometrical and relational constraints specific to thermal modeling. [less ▲]

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See detailLa pêche aux nasses dans le delta du fleuve Ouémé, Bénin : implications pour une gestion rationnelle des ressources halieutiques
Montchowui, Elie; Agadjihouede, Hyppolite; Poncin, Pascal ULg et al

Poster (2012)

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See detailLa pêche de Ceryle rudis Linné, 1758 (Alcedinidae: Coraciiformes, Aves)
Hakizimana, Dismas ULg

in Bulletin Scientifique de l'Institut National pour l'Environnement et la Conservation de la Nature (INECN) (2011), (9), 39-45

Tanganyika Lake is frequented by many fish-eating birds, especially kingfishers. Our research has focused in particular on Ceryle rudis Linné, 1758, pied kingfisher. This study, conducted over a period of ... [more ▼]

Tanganyika Lake is frequented by many fish-eating birds, especially kingfishers. Our research has focused in particular on Ceryle rudis Linné, 1758, pied kingfisher. This study, conducted over a period of two months, from June 21 to July 19 and from August 19 to September 16, 2002, aims to analyze the fishery of pied kingfisher, considering fishing time during the day, before and afternoon. This bird was fishing from a perch or a hovering position. This regularly observed behavior allows the bird to fish in the pelagic water, which is uncommon in other species of kingfishers. This part distinguishes direct dives carried out from a perch and dives performed after a hovering position. Results show that, on a total of 583 dives, 324 or 55,5% were dives from perches while the rest were made from a hovering position. We found that Ceryle rudis is very active in fishing until midday and it is less so in the afternoon. The average number of fish eaten per day per bird was 9,3. [less ▲]

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See detailLe péché de curiosité aux temps modernes
Verbeeck, Muriel ULg

in Homo Religiosus, Autour de Jean Delumeau (1997)

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See detailLe péché par la langue. Pour traduire Hamann
Droixhe, Daniel ULg

in Pot, O. (Ed.) Origines du langage : Une encyclopédie poétique (2007)

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See detailLa pêche traditionnelle dans les pleines inondables du fleuve Ouémé au Bénin
Laleyé, Philippe; Akélé, David; Philippart, Jean-Claude ULg

in Cahiers d'Ethologie (2005), 22(2), 25-38

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See detailPectin extraction from lemon by-product with acidified date juice : effect of extraction conditions on chemical composition of pectin.
Masmoudi, M.; Besbes, Souhail; Chaabouni, M. et al

in Food Science & Technology International (2010), 16(2), 105-114

The microstructure and the rheological properties of lemon-pectin mixtures were studied and compared to those of pure lemon (high methoxyl: HM) and date (low methoxyl: LM) pectins. Rheological properties ... [more ▼]

The microstructure and the rheological properties of lemon-pectin mixtures were studied and compared to those of pure lemon (high methoxyl: HM) and date (low methoxyl: LM) pectins. Rheological properties were carried out in the presence of 30%, 45% and 60% sucrose, and increasing calcium concentrations (0-0.1%). The presence of date with lemon pectin led to a gel formation at 45% sucrose and in the presence of calcium, which was not the case for lemon pectin alone under the same conditions. It is suggested that lemon and date pectins interacted, leading to gel formations at different gelling temperatures, which were strongly dependant on degree of methylation. These results were confirmed by scanning electron microscopy, which revealed inhomogeneous gels where dense aggregated network and loose, open network areas were present. Addition of calcium to pectin mixture gels led to stronger and faster gel formation. [less ▲]

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See detailPectoral sound production in Synodontis (Mochokidae): a morphological study
Fabri, Gégory; Mauguit, Quentin; Vandewalle, Pierre ULg et al

Poster (2007)

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See detailPeculiar characteristics of familial GH-secreting pituitary adenomas
Jaffrain-Réa, M. L.; Ferretti, E.; Durante, C. et al

in 5th European Congress of Endocrinology - Abstract book (2001)

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See detailA peculiar class of debris disks from Herschel/DUNES - A steep fall off in the far infrared
Ertel, S; Wolf, S; Marshall, J P et al

in Astronomy and Astrophysics (2012), 541

Aims. We present photometric data of debris disks around HIP 103389 (HD 199260), HIP 107350 (HN Peg, HD206860), and HIP 114948 (HD 219482), obtained in the context of our Herschel Open Time Key Program ... [more ▼]

Aims. We present photometric data of debris disks around HIP 103389 (HD 199260), HIP 107350 (HN Peg, HD206860), and HIP 114948 (HD 219482), obtained in the context of our Herschel Open Time Key Program DUNES (DUst around NEarby Stars). Methods. We used Herschel/PACS to detect the thermal emission of the three debris disks with a 3 sigma sensitivity of a few mJy at 100 um and 160 um. In addition, we obtained Herschel/PACS photometric data at 70 um for HIP 103389. Two different approaches are applied to reduce the Herschel data to investigate the impact of data reduction on the photometry. We fit analytical models to the available spectral energy distribution (SED) data. Results. The SEDs of the three disks potentially exhibit an unusually steep decrease at wavelengths > 70 um. We investigate the significance of the peculiar shape of these SEDs and the impact on models of the disks provided it is real. Our modeling reveals that such a steep decrease of the SEDs in the long wavelength regime is inconsistent with a power-law exponent of the grain size distribution -3.5 expected from a standard equilibrium collisional cascade. In contrast, a very distinct range of grain sizes is implied to dominate the thermal emission of such disks. However, we demonstrate that the understanding of the data of faint sources obtained with Herschel is still incomplete and that the significance of our results depends on the version of the data reduction pipeline used. Conclusions. A new mechanism to produce the dust in the presented debris disks, deviations from the conditions required for a standard equilibrium collisional cascade (grain size exponent of -3.5), and/or significantly different dust properties would be necessary to explain the potentially steep SED shape of the three debris disks presented. (abridged) [less ▲]

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See detailPeculiar hydrophobic properties of the 67-78 fragment of α-synuclein are responsible for membrane destabilization and neurotoxicity
Crowet, Jean-Marc ULg; Lins, Laurence ULg; Dupiereux-Fettweis, Ingrid ULg et al

Poster (2007, March 14)

α-synuclein is a 140 residue protein linked to Parkinson’s disease. Intraneural inclusions called Lewy bodies and Lewy neurites are mainly composed of α-synuclein aggregated in amyloid fibrils. Few years ... [more ▼]

α-synuclein is a 140 residue protein linked to Parkinson’s disease. Intraneural inclusions called Lewy bodies and Lewy neurites are mainly composed of α-synuclein aggregated in amyloid fibrils. Few years ago, tilted peptides have been detected in two other amyloidogenic proteins : the amyloid β peptide involved in Alzheimer’s disease, and the PrP protein linked to Creuztfeldt-Jakob’s disease. Tilted peptides are short protein fragments that adopt an oblique orientation when inserted into biological membranes. Tilted peptides are able to destabilize membranes. In this study, we predicted by sequence analysis and molecular modelling that the 67-78 fragment of α-synuclein is a tilted peptide. Like most of them, the α-syn 67-78 peptide is able to induce lipid mixing and leakage of unilamellar liposomes. A mutant designed by molecular modelling to decrease the destabilizing properties of the peptide was shown to be significantly less fusogenic. The neuronal toxicity was studied using human neuroblastoma cells and we demonstrated that the α-syn 67-78 peptide induces neurotoxicity. In conclusion, we have identified a tilted peptide in α-synuclein which could be involved in the toxicity induced during amyloidogenesis of α-synuclein. [less ▲]

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See detailPeculiar hydrophobic properties of the 67-78 fragment of α-synuclein are responsible for membrane destabilization and neurotoxicity
Crowet, Jean-Marc ULg; Lins, Laurence ULg; Dupiereux-Fettweis, Ingrid ULg et al

Poster (2006, December 18)

α-synuclein is a 140 residue protein linked to Parkinson’s disease. Intraneural inclusions called Lewy bodies and Lewy neurites are mainly composed of α-synuclein aggregated in amyloid fibrils. Few years ... [more ▼]

α-synuclein is a 140 residue protein linked to Parkinson’s disease. Intraneural inclusions called Lewy bodies and Lewy neurites are mainly composed of α-synuclein aggregated in amyloid fibrils. Few years ago, tilted peptides have been detected in two other amyloidogenic proteins : the amyloid β peptide involved in Alzheimer’s disease, and the PrP protein linked to Creuztfeldt-Jakob’s disease. Tilted peptides are short protein fragments that adopt an oblique orientation when inserted into biological membranes. Tilted peptides are able to destabilize membranes. In this study, we predicted by sequence analysis and molecular modelling that the 67-78 fragment of α-synuclein is a tilted peptide. Like most of them, the α-syn 67-78 peptide is able to induce lipid mixing and leakage of unilamellar liposomes. A mutant designed by molecular modelling to decrease the destabilizing properties of the peptide was shown to be significantly less fusogenic. The neuronal toxicity was studied using human neuroblastoma cells and we demonstrated that the α-syn 67-78 peptide induces neurotoxicity. In conclusion, we have identified a tilted peptide in α-synuclein which could be involved in the toxicity induced during amyloidogenesis of α-synuclein. [less ▲]

Detailed reference viewed: 9 (1 ULg)
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See detailThe peculiar Of?p stars HD 108 and HD 191612
Nazé, Yaël ULg; Rauw, Grégor ULg; Walborn, N. R. et al

in Massive Stars and High-Energy Emission in OB Associations (2005, November 01)

The Of?p spectral category was introduced by Walborn in 1972 to describe peculiar stars which possess intense emission lines of C III 4647,4650,4651. Recently, two of them, HD 108 and HD 191612, were ... [more ▼]

The Of?p spectral category was introduced by Walborn in 1972 to describe peculiar stars which possess intense emission lines of C III 4647,4650,4651. Recently, two of them, HD 108 and HD 191612, were found to display spectacular line profile variations in the visible domain: these stars apparently alternate between two different spectral states (O6-O8). To discover the origin of this intriguing behaviour, a multiwavelength campaign was undertaken. In this context, the analysis of the X-ray emission is especially important since it provides crucial information for constraining the nature of these peculiar objects and testing conflicting models. We are therefore carrying out high-quality XMM-Newton observations of these stars and we present the results of the data obtained up to now. [less ▲]

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