References of "2003"
     in
Bookmark and Share    
Full Text
See detailLa mesure du sentiment de compétence chez les aidants de patients déments
Vernooij-Dassen, M.; Kurz, Xavier; Scuvée-Moreau, Jacqueline ULg et al

in Revue épidémiologique Santé publique (2003), 51

Detailed reference viewed: 141 (7 ULg)
Full Text
Peer Reviewed
See detailMarocains de Belgique : du travailleur immigré au citoyen transnational
Bousetta, Hassan ULg; Martiniello, Marco ULg

in Hommes & Migrations (2003), 1242(Mars-Avril), 94-106

Detailed reference viewed: 206 (15 ULg)
Full Text
Peer Reviewed
See detailRegional variability in mottled subclinical melanoderma in the elderly.
Petit, Ludivine; Fogouang, L.; Uhoda, Isabelle et al

in Experimental Gerontology (2003), 38(3), 327-31

The density in melanin chromatophores becomes heterogeneous in the epidermis during the early events of photoaging. Little is known about the regional variability in the resulting mottled skin appearance ... [more ▼]

The density in melanin chromatophores becomes heterogeneous in the epidermis during the early events of photoaging. Little is known about the regional variability in the resulting mottled skin appearance on the sun-exposed parts of the body in the elderly. The relationship between these features and the dermal atrophy related to aging is also an area ripe for study. The aim of the present study was to objectively assess and compare such aspects of photoaging in older subjects. A computer-assisted video camera equipped with an internal ultraviolet-emitting unit (Visioscan) was used in combination with image analysis to quantify the infraclinical mottling of the skin on the forehead, neck and dorsal forearm. A Densi Score device served to assess the dermal atrophy by rating the skin folding capacity. A mottled subclinical melanoderma was disclosed on the three evaluation sites in all subjects irrespective of their phototypes. Three main patterns were identified corresponding to regular perifollicular dots, streaky macules along shallow wrinkles and unevenly shaped macules in the interfollicular area. The extent in melanoderma was larger on the forehead than on the neck and forearm. The age after 60 years did not influence the severity of mottled melanoderma, but clearly altered the skin folding capacity. The greatest inter-individual differences in mottled melanoderma were found in phototype II subjects. In conclusion, infraclinical mottled melanoderma is present in all individuals after 60 years of age. This type of epidermal photoaging does not appear to be influenced in older ages. By contrast, skin laxity due to dermal aging continues to progress beyond the age of 60 years. [less ▲]

Detailed reference viewed: 40 (0 ULg)
Full Text
Peer Reviewed
See detailLe médicament du mois Le voriconazole (Vfend).
Pierard, Gérald ULg; Arrese Estrada, Jorge ULg; Quatresooz, Pascale ULg et al

in Revue Médicale de Liège (2003), 58(5), 351-5

Invasive fungal infections are a rare but important cause of morbidity and mortality among patients with severely compromised host defenses. Despite considerable advances in antifungal therapies over the ... [more ▼]

Invasive fungal infections are a rare but important cause of morbidity and mortality among patients with severely compromised host defenses. Despite considerable advances in antifungal therapies over the past years, invasive mycoses remain a stubborn and dramatic problem. Voriconazole is a new triazole antifungal agent which confers a relative survival benefit in fluconazole-resistant invasive candidiasis, and in invasive aspergillosis, fusariosis and Scedosporium infections as well. [less ▲]

Detailed reference viewed: 102 (2 ULg)
Full Text
See detailImproving spatial information extraction for local and regional authorities using Very-High-Resolution data - geometric aspects.
Devriendt, Dennis; Goossens, Rudi; De Wulf, Alain et al

in International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences (2003), 34(XXX),

The purpose of the presented research project is to investigate how present-day EO-technology can support local and regional decision-making, particularly in Belgium, and to develop prototype versions of ... [more ▼]

The purpose of the presented research project is to investigate how present-day EO-technology can support local and regional decision-making, particularly in Belgium, and to develop prototype versions of value-added products that fulfil some of the actual information needs, as expressed by Belgian authorities at the local and at the regional level. To accomplish this goal the proposal addresses both technical and user-oriented issues, and builds on the experience of five research teams, each with its own background and particular know-how. The most important objectives of the project are: - to define optimal methods for improved spatial information extraction from high- and very-high resolution data, based on innovative processing techniques; - to identify useful EO-applications at the level of local and regional decision making that are made possible by applying the information extraction methods that will be developed; in this case especially 3D information - to define and develop value-added core data products that will support these applications, and that can be consulted with easy-to-use, widely available IT-tools (CD-ROM, Internet, …). One of the technical research modules is focussing on the geometrical aspects of VHR data processing. In terms of spatial resolution, VHR data have the required level of detail to resolve individual objects in the landscape, in a similar way as airborne data. As such, they have the potential of becoming a useful data source for the extraction of detailed, object-related information, and for the production of large-scale cartographic reference data. The geometry of VHR sensor data, however, completely differs from the geometry of aerial photographs (Bethel et al., 2001). Research is going on to evaluate the geometric qualities of present and future VHR standard data products, from the moment they become available, and to examine what level of geometric accuracy is attained with these data, depending on image parameters, processing strategies, and terrain characteristics (Zhou and Li, 2000). The main objectives of the research module on geometric aspects of VHR data processing are: a) to define an optimal procedure for the derivation of envelope DSMs (Digital Surface Models) and ortho-photoplans from VHR data; b) to develop a theoretical model to study the effect of the oblique viewing angle of VHR data on image displacements caused by building height and relief; c) to evaluate the geometric accuracy of satellite-derived envelope DSMs and ortho-corrected image data in comparison with similar products obtained by means of large-scale aerial photography. The module about geometrical aspects is divided into six specific tasks. a) GPS database creation b) Creation of reference envelope DSMs based on aerial photography c) Ortho-rectification of VHR images and aerial photography based on reference DSMs d) Evaluation of the quality of VHR geo-referenced data e) Modelling of displacements caused by terrain morphology and sensor viewing angle f) Development of envelope DEMs from VHR stereoscopic imagery The project is now in the stage where the quality of the georeferenced and orthorectified data is evaluated. [less ▲]

Detailed reference viewed: 46 (3 ULg)
Full Text
Peer Reviewed
See detailCarbon and nitrogen isotopic ratios of the seagrass Posidonia oceanica: Depth-related variations
Lepoint, Gilles ULg; Dauby, Patrick ULg; Fontaine, Michael ULg et al

in Botanica Marina (2003), 46(6), 555-561

Nitrogen (delta(15)N) and carbon (delta(13)C) isotopic compositions of Posidonia oceanica were determined during three seasons along a bathymetric gradient (438 m depth).The delta(15)N values are low (2.2 ... [more ▼]

Nitrogen (delta(15)N) and carbon (delta(13)C) isotopic compositions of Posidonia oceanica were determined during three seasons along a bathymetric gradient (438 m depth).The delta(15)N values are low (2.2+/-0.9%) and variable.They do not show any relation to depth or sampling dates. There is a significant difference between the delta(15)N values of the youngest and the oldest leaves, probably as a result of N resorption and senescing during leaf ageing. The delta(13)C values of young Posidonia leaves vary with depth, showing the relationship between delta(13)C values and primary productivity rate, and the use of a bicarbonate/CO2 mixture as an inorganic carbon source. The delta(13)C values of the oldest P. oceanica leaves are depleted in C-13 compared to those of young leaves. This modification of the C-13 signatures in relation to leaf age is particularly important between 20 and 29 m depth. This modification could be related to photosynthetic rate change during ageing, but also to change in carbohydrate composition and content. [less ▲]

Detailed reference viewed: 92 (19 ULg)
Full Text
Peer Reviewed
See detailA general method for the chemical synthesis of gamma-P-32-labeled or unlabeled nucleoside 5 '-triphosphates and thiamine triphosphate
Bettendorff, Lucien ULg; Nghiem, Hoang O; Wins, Pierre et al

in Analytical Biochemistry (2003), 322(2), 190-197

Several methods for the chemical synthesis of gamma-P-32-labeled and unlabeled nucleoside 5'-triphosphates and thiamine triphosphate (ThTP) have been described. They often proved unsatisfactory because of ... [more ▼]

Several methods for the chemical synthesis of gamma-P-32-labeled and unlabeled nucleoside 5'-triphosphates and thiamine triphosphate (ThTP) have been described. They often proved unsatisfactory because of low yield, requirement for anhydrous solvents, procedures involving several steps or insufficient specific radioactivity of the labeled triphosphate. In the method described here, all these drawbacks are avoided. The synthesis of [gamma-P-32]TbTP was carried out in one step, using 1,3-dicyclohexyl carbodiimide as condensing agent for thiamine diphosphate and phosphoric acid in a dimethyl sulfoxide/pyridine solvent mixture. Anhydrous solvents were not required and the yield reached 90%. After purification, [gamma-P-32]ThTP had a specific radioactivity of 11 Ci/mmol and was suitable for protein phosphorylation. The method can also be used for the synthesis Of [gamma-P-32]ATP of the desired specific radioactivity. It can easily be applied to the synthesis of unlabeled ThTP or ribo- and deoxyribonucleoside 5'-triphosphates. In the latter case, inexpensive 5'-monophosphate precursors can be used as reactants in a 20-fold excess of phosphoric acid. Deoxyribonucleoside 5'-triphosphates were obtained in 6 h with a yield of at least 70%. After purification, the nucleotides were found to be suitable substrates for Taq polymerase during polymerase chain reaction cycling. Our method can easily be scaled up for industrial synthesis of a variety of labeled and unlabeled triphosphoric derivatives from their mono- or diphosphate precursors. (C) 2003 Elsevier Inc. All rights reserved. [less ▲]

Detailed reference viewed: 68 (2 ULg)
Full Text
Peer Reviewed
See detailTreating non proportional damping by means of Taylor polynomial approximations
Denoël, Vincent ULg

in Proceedings of the 2003 Extreme Loading Conference (2003)

In order to simplify the resolution of the equation of motion, structural damping is generally supposed to be proportional. Indeed, this coarse and unjustified hypothesis leads to uncoupled equations of ... [more ▼]

In order to simplify the resolution of the equation of motion, structural damping is generally supposed to be proportional. Indeed, this coarse and unjustified hypothesis leads to uncoupled equations of motion in the modal basis. The aerodynamic and concentrated dampings (dash-pots) are accurately characterized by mathematical laws. These are such that the equations of motion are no longer uncoupled in the modal basis. After presenting the usual ways to solve coupled system of equations, the paper focuses on a method based on Taylor series expansions which allows to partially account for the coupling. After developing the equations related to this method, some examples of application are provided. [less ▲]

Detailed reference viewed: 53 (2 ULg)
Full Text
See detailGuide des travaux pratiques de Physiologie végétale
Périlleux, Claire ULg

Learning material (2003)

Detailed reference viewed: 389 (8 ULg)
See detailA New Version of the Moment Method, Optimized for Mode Identification in Multiperiodic Stars
Briquet, Maryline ULg; Aerts, C.

in Asteroseismology Across the HR Diagram (2003)

Detailed reference viewed: 13 (2 ULg)
Full Text
Peer Reviewed
See detailA conceptual framework to design and support self-directed learning in a blended learning program. A case-stydy: the DES-TEF
Denis, Brigitte ULg

in Journal of Educational Media (2003), 28(2-3), 115-127

This paper relates different strategies developed in order to support the learning process in a blended learning programme involving adults from different backgrounds who are interested in the use of ... [more ▼]

This paper relates different strategies developed in order to support the learning process in a blended learning programme involving adults from different backgrounds who are interested in the use of Information and Communication Technologies for Education (ICTE). Referring to Carré & Pearn’s model of the seven pillars of self-learning, the author describes some principles, tools and resources that have been developed within the framework of a postgraduate diploma and that could be extended to similar adult training programmes. [less ▲]

Detailed reference viewed: 61 (6 ULg)
Full Text
Peer Reviewed
See detailSérapis et l'aigle : polysémie d'un iconotype
Veymiers, Richard ULg

in Cannuyer, Christian (Ed.) Les lieux de culte en Orient. Jacques Thiry in honorem (2003)

Detailed reference viewed: 60 (9 ULg)
Full Text
Peer Reviewed
See detailThe use of resistograph F-400 and the processing of data : a case study.
Paul, Roger ULg; Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >; Baudoin, Jean-Pierre ULg et al

Poster (2003)

Detailed reference viewed: 52 (5 ULg)
Full Text
See detailHydrea versus greffe de moelle osseuse
DRESSE, Marie-Françoise ULg

Conference (2003)

Detailed reference viewed: 15 (0 ULg)
Peer Reviewed
See detailAdvanced control systems for MEMS capacitive sensing accelerometers.
Mokthari, ME; Kraft, Michael ULg

in Advanced control systems for MEMS capacitive sensing accelerometers. (2003)

Detailed reference viewed: 13 (5 ULg)
Full Text
Peer Reviewed
See detailQuestions à propos du délit d’obstacle à la surveillance en droit belge
Kefer, Fabienne ULg

in Revue Trimestrielle des Droits de l'Homme (2003)

Detailed reference viewed: 33 (7 ULg)
See detailBiomarkers useful in toxicology
Charlier, Corinne ULg

Conference (2003)

Detailed reference viewed: 8 (1 ULg)