References of "2004"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailApprentissage par problèmes, à distance. Présentation et analyse d'un dispositif de formation.
Dury, Cécile ULg

in Recherche en Soins Infirmiers (2004), 79

Cet article présente et analyse un dispositif de formation visant l’acquisition de compétences en soins infirmiers. Les objectifs poursuivis sont le développement: - d’une méthode pédagogique active ... [more ▼]

Cet article présente et analyse un dispositif de formation visant l’acquisition de compétences en soins infirmiers. Les objectifs poursuivis sont le développement: - d’une méthode pédagogique active : l’apprentissage par problèmes (APP) ; - de l’approche interdisciplinaire et interculturelle, les mêmes problèmes étant résolus par des étudiants de différentes disciplines et cultures ; - de l’utilisation des nouvelles technologies de l’information et de la communication (NTIC) afin de permettre une collaboration maximale « à distance » entre les différents partenaires du projet. L’analyse du dispositif montre que les objectifs pédagogiques poursuivis par l’APP sont atteints. L’approche pluridisciplinaire et pluriculturelle, pour être optimale, demande une grande coordination entre les partenaires, un équilibre entre les groupes d’étudiants des différents pays et disciplines, une formation et un soutien des tuteurs dans l’utilisation de la plate-forme d’enseignement à distance. [less ▲]

Detailed reference viewed: 38 (1 ULg)
Full Text
Peer Reviewed
See detailPrimary prevention of osteoporosis: Mass screening scenario or prescreening with questionnaires? An economic perspective
Richy, F.; Ethgen, Olivier ULg; Bruyère, Olivier ULg et al

in Journal of Bone and Mineral Research (2004), 19(12), 1955-1960

This study focuses on the controversy surrounding selective approaches to screen for osteoporosis. Seven screening approaches were compared in terms of cost-effectiveness and incremental cost ... [more ▼]

This study focuses on the controversy surrounding selective approaches to screen for osteoporosis. Seven screening approaches were compared in terms of cost-effectiveness and incremental cost-effectiveness ratios in a sample of 4035 postmenopausal women. Our results show that certain prescreening strategies are more efficient than DXA-based approaches. These results are of considerable value for health policy decision-makers and the scientific community. [less ▲]

Detailed reference viewed: 33 (6 ULg)
Full Text
Peer Reviewed
See detailPhylogeny, biogeography, and the evolution of life-history traits in Leucadendron (Proteaceae)
Barker, N. P.; Vanderpoorten, Alain ULg; Morton, C. M. et al

in Molecular Phylogenetics and Evolution (2004), 33(3), 845-860

Leucadendron is a moderately large genus of Proteaccae almost entirely restricted to the Cape Floristic Region of southern Africa. The genus is unusual in being dioecious and sexually dimorphic. ITS ... [more ▼]

Leucadendron is a moderately large genus of Proteaccae almost entirely restricted to the Cape Floristic Region of southern Africa. The genus is unusual in being dioecious and sexually dimorphic. ITS sequence data were obtained from 62 of the 96 currently recognized taxa (85 species and 11 subspecies). Phylogenetic analyses were conducted under Maximum Likelihood and parsimony and resolved nine groups of species with varying degrees of bootstrap support, but relationships between these groups are largely unsupported. The phylogeny conflicts with the current taxonomic arrangement, which is based mainly on fruit morphology. The two sections of the genus, Alatosperma and Leucadendron, and several subsections within these sections, are resolved as non-monophyletic. This means that taxonomically important characters (such as fruit shape) have evolved multiple times, as the species with nutlike fruit (resolved into two of the nine groups) appear to have evolved independently from ancestors with winged fruit. Based on the topology obtained, the life history traits of anemophily, myrmechochory, and re-sprouting have also originated multiple times. Dispersal-Vicariance (DIVA) analysis suggests that the genus had an ancestral area in the Karoo Mountain and Southeastern phytogeographic centres of endemism in the southwestern Cape. (C) 2004 Elsevier Inc. All rights reserved. [less ▲]

Detailed reference viewed: 7 (1 ULg)
Full Text
Peer Reviewed
See detailNo influence of 20 and 400 mu T 50 Hz magnetic field exposure on cognitive function in humans
Delhez, Marie; Legros, Jean-Jacques ULg; Crasson, Marion ULg

in Bioelectromagnetics (2004), 25(8), 592-598

The aim of the present study was to investigate cognitive effects of a continuous, vertical extremely low frequency (ELF) magnetic field (MF) of 20 and 400 muT 50 Hz in healthy young men during ... [more ▼]

The aim of the present study was to investigate cognitive effects of a continuous, vertical extremely low frequency (ELF) magnetic field (MF) of 20 and 400 muT 50 Hz in healthy young men during performance on cognitive tests. Thirty-two volunteers (20-30 years old, mean 22.6 +/- 2.2 years) participated in this double blind study. The test protocol consisted of a set of tests: divided attention, flexibility, memory updating, digit span, digit span with articulary suppression, and time perception. The total duration of the exposure was 65 min. Participants were assigned four sessions: three conditions in the helmet (sham exposure, 20 and 400 muT) and one condition out of the helmet (to control the expectancy effect). No effect of MF exposure was observed on performance. Bioelectromagnetics 25:592-598, 2004. (C) 2004 Wiley-Liss, Inc. [less ▲]

Detailed reference viewed: 18 (0 ULg)
Full Text
Peer Reviewed
See detailNumber of iterations when comparing MLEM/OSEM with FBP
Seret, Alain ULg

in Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine (2004), 45(12), 2125-2125

Detailed reference viewed: 53 (5 ULg)
Full Text
See detailLes travaux de la CPDT comme appui à la mise en oeuvre de la Convention européenne du Paysage en région wallonne
Droeven, Emilie ULg; Kummert, Magali

Conference given outside the academic context (2004)

Dès 2000, la Région wallonne a lancé un programme de recherche au sein de la Conférence Permanente du Développement Territorial (CPDT) pour répondre aux exigences de mise en œuvre de la Convention ... [more ▼]

Dès 2000, la Région wallonne a lancé un programme de recherche au sein de la Conférence Permanente du Développement Territorial (CPDT) pour répondre aux exigences de mise en œuvre de la Convention européenne du paysage. La communication s’attache à retracer le cheminement d’une partie de cette recherche jusqu’en novembre 2004. Toutes les contributions de la CPDT en la matière ne sont pas présentées ici. Dans un premier temps, les travaux se sont concentrés sur l’identification des macro-paysages wallons (carte des territoires paysagers) puis sur la mise au point d’une méthode d’identification des paysages patrimoniaux wallons. [less ▲]

Detailed reference viewed: 46 (3 ULg)
Full Text
Peer Reviewed
See detailEffect of acidic ternary compounds on the formation of miconazole/cyclodextrin inclusion complexes by means of supercritical carbon dioxide
Barillaro, Valery; Bertholet, Pascal; Henry de Hassonville, Sandrine et al

in Journal of Pharmacy & Pharmaceutical Sciences : A Publication of the Canadian Society for Pharmaceutical Sciences (2004), 7(3), 378-388

PURPOSE: The aim of the study is to evaluate the effect of different acidic compounds on the inclusion of miconazole (MICO) in several cyclodextrins (CDs) using supercritical carbon dioxide (SCCO(2 ... [more ▼]

PURPOSE: The aim of the study is to evaluate the effect of different acidic compounds on the inclusion of miconazole (MICO) in several cyclodextrins (CDs) using supercritical carbon dioxide (SCCO(2) ) processing. METHODS: Physical mixtures were processed by SCCO(2) at 30 MPa, 125 degrees C during 60 minutes in a static mode to produce inclusion complexes. The inclusion complexes were characterized by differential solubility, Fourier transform infrared spectroscopy (FT-IR) and dissolution test. RESULTS: The best inclusion yields were achieved with the combination of MICO base and HPgammaCD with or without acids. Maleic and fumaric acids influenced the MICO inclusion differently in function of their conformation. During the process, a miconazole salt was observed with maleic acid and characterized by thermal analysis and mass spectrometry. The kinetics inclusion followed a saturation-type shape curve. FT-IR confirmed the presence of genuine inclusion complexes. The complexes MICO base/HPgammaCD/(L-tartaric acid) enhanced the dissolution rates of MICO more than the corresponding physical mixtures did. Lastly, the stability study revealed that the complexes were stable. CONCLUSIONS: The formation of stable complexes between MICO and CDs is possible using SCCO(2). Moreover an acidic ternary compound is able to modify the formation of the complex. The inclusion complexes, which show better dissolution profiles than those with the corresponding physical mixtures, could lead to an increase of the oral bioavailability of MICO. [less ▲]

Detailed reference viewed: 21 (2 ULg)
See detailLa fondation critique de la philosophie chez Heinrich Rickert
Dewalque, Arnaud ULg

Conference given outside the academic context (2004)

Je présente ici l’objectif de ma thèse, qui consiste à confronter deux méthodes pour aborder les problèmes philosophiques : la méthode phénoménologique et la méthode critique. Mon exposé est divisé en ... [more ▼]

Je présente ici l’objectif de ma thèse, qui consiste à confronter deux méthodes pour aborder les problèmes philosophiques : la méthode phénoménologique et la méthode critique. Mon exposé est divisé en trois parties : 1. je commence par élucider le thème d’une « fondation critique de la philosophie » d’après ses principes directeurs et son ancrage historique ; 2. ensuite, de façon plus ciblée, j’expose les grandes lignes de la théorie de la connaissance de Rickert, dont le but est précisément d’opérer une telle fondation ; 3. enfin, je souligne les implications de cette théorie pour la philosophie en général et plus particulièrement pour son rapport aux autres sciences. [less ▲]

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailAromatase inhibition blocks the expression of sexually-motivated cloacal gland movements in male quail
Taziaux, Mélanie ULg; Cornil, Charlotte ULg; Balthazart, Jacques ULg

in Behavioural Processes (2004), 67(3), 461-469

In Japanese quail (Coturnix japonica), activation of appetitive and consummatory aspects of male sexual behavior requires aromatization of testosterone (T) into estrogens. Appetitive male sexual behavior ... [more ▼]

In Japanese quail (Coturnix japonica), activation of appetitive and consummatory aspects of male sexual behavior requires aromatization of testosterone (T) into estrogens. Appetitive male sexual behavior (ASB) is usually assessed with the use of a learned social proximity procedure. In the present experiment, we investigated the role of estrogens in the activation of an another index of ASB. the female-induced activation of rhythmic cloacal sphincter movements (RCSMs) that are produced in reaction to the visual presentation of a female. Consummatory sexual behavior (CSB) was also assessed by the frequency and latency of copulatory behaviors. Castrated male quail were treated with Silastic implants filled with T in association with chronic injections of the aromatase inhibitor Vorozole(TM) (R83842; 1 mg/kg twice a day; CX + T + VOR group). Control birds were implanted with T capsules only (CX + T group). CSB was almost completely blocked by injections of the aromatase inhibitor. The RCSM frequency decreased progressively in the CX + T + VOR group by comparison with the CX + T group and was therefore significantly reduced at the end of the experiment. These results demonstrate that the frequency of RCSM, a second measure of ASB is, like the social proximity response and CSB, blocked by inhibition of estrogen production. It was shown previously that lesions of the preoptic area inhibit both aspects of the appetitive sexual behavior (proximity response and RCSM). It is therefore, likely that both responses are controlled, like copulation, by aromatase-containing neurons of the preoptic area. (C) 2004 Elsevier B.V. All rights reserved. [less ▲]

Detailed reference viewed: 17 (3 ULg)
Full Text
See detailBiomaterials, their potential in medicine and their actual side effects
Grandfils, Christian ULg

Conference (2004, November 29)

Detailed reference viewed: 11 (0 ULg)
See detailLa prise en charge du patient cardiaque.
Etienne, Anne-Marie ULg

Scientific conference (2004, November 26)

Detailed reference viewed: 5 (0 ULg)
Full Text
Peer Reviewed
See detailMutation douce de l'enseignant en concepteur-tuteur dans des activités d'apprentissage totalement à distance. Communication présentée au Colloque TICE Méditérannée, Nice
Vandeput, Etienne ULg; Denis, Brigitte ULg

in Actes du colloque TICE Méditérannée (en ligne) (2004, November 26)

Experts in education and communication technology cannot speak about distance learning without calling up the new roles it springs up and the new relationships it generates. Its detractors claim that ... [more ▼]

Experts in education and communication technology cannot speak about distance learning without calling up the new roles it springs up and the new relationships it generates. Its detractors claim that, under these new conditions, this kind of learning requires significant and expansive means unlike a more classical one. Instead of giving up in front of such disheartening elements, the authors have been trying to measure how far a simple distance learning system (i.e. with little human, hardware and software means) can be implemented. In that way, they have been creating a learning environment basically based on a mixture of individual and collaborative works. Owing to both this mixture and the organization structure, the students can reach the fixed learning goals. Through these processes, they try to isolate practices, learners or teaching staff should be inspired by. They should, in that way, evolve slightly from a classical context to the design of learning scripts including efficient tutoring in a distance context. The course described in this paper is called “Analysis of distance learning environments”. The public consists of adults having enrolled for a DES in Education and Training Technology. To conduct this experiment, the authors have been setting themselves some rules and constraints in order to derive a general process that might be applied to various situations. These rules and constraints are very close to the usual learner’s working constraints. Recommendations focus on practices including careful preparation, coordination techniques betweenteachers and learner’s initiation into reflexivity. [less ▲]

Detailed reference viewed: 49 (11 ULg)
See detailCarbon nanotubes/polymer nanocomposites
Detrembleur, Christophe ULg

Scientific conference (2004, November 26)

Detailed reference viewed: 5 (0 ULg)
Full Text
Peer Reviewed
See detailCharacterization of the tumor micro-environment after administration of glucocorticoids to understand their radiosensitization effect
Crokart; Jordan; Baudelet et al

Poster (2004, November 26)

Detailed reference viewed: 3 (0 ULg)
See detailESR studies of the in-situ nitroxide-mediated polymerization (NMP) of styrene using a nitrone
Sciannamea, Valérie; Bernard, M.; Catala, J.-M. et al

Conference (2004, November 26)

Detailed reference viewed: 19 (1 ULg)
Full Text
Peer Reviewed
See detailSelf-association of double-hydrophilic copolymers of acrylic acid and poly(ethylene oxide) macromonomer
Khousakoun, Eric; Gohy, Jean-François; Jérôme, Robert ULg

in Polymer (2004), 45(25), 8303-8310

Poly(ethylene oxide) (PEO) end-capped by a methacrylate unsaturation was copolymerized with acrylic acid by RAFT with dibenzyltrithiocarbonate as a chain transfer agent. Tapered triblock copolymers ... [more ▼]

Poly(ethylene oxide) (PEO) end-capped by a methacrylate unsaturation was copolymerized with acrylic acid by RAFT with dibenzyltrithiocarbonate as a chain transfer agent. Tapered triblock copolymers consisting of a poly(acrylic acid) (PAA) inner block and comb-like outer blocks of PEO macromomers were formed as result of the comonomers reactivity ratios. Composition of these copolymers and length of the PEO branches were varied. Dynamic light scattering (DLS) was used to characterize the aggregates formed in water and to investigate their response to stimuli, such as pH, temperature and ionic strength. In parallel, the morphology of the aggregates was directly observed by transmission electron microscopy (TEM). Well-defined aggregates were formed in the 5<pH<8 range, with a morphology strongly depending on the copolymer composition. At pH<5, the copolymers were poorly soluble and no well-defined structure was observed, whereas free chains were formed at pH>8 as consequence of the complete ionization of the PAA block. [less ▲]

Detailed reference viewed: 35 (1 ULg)