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See detailCystatin C blood level as a risk factor for death after heart surgery
Ledoux, Didier ULg; Monchi, M.; Chapelle, Jean-Paul ULg et al

in European Heart Journal (2007), 28(15), 1848-53

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See detailOscillator Models and Collective Motion: spatial patterns in the dynamics of engineered and biological networks
Paley, Derek; Leonard, Naomi E.; Sepulchre, Rodolphe ULg et al

in IEEE Control Systems Magazine (2007), 27(4), 89-105

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See detailL'enseignement par compétences en sciences biologiques : le défi des enseignants ... et des formateurs
Hindryckx, Marie-Noëlle ULg; Daussogne, Christine

in Puzzle (2007), (22), 48-51

Lors de la formation initiale des enseignants en sciences biologiques au secondaire, deux phases importantes sont décrites : la phase d'appropriation des prescrits en matière d'enseignement pour ... [more ▼]

Lors de la formation initiale des enseignants en sciences biologiques au secondaire, deux phases importantes sont décrites : la phase d'appropriation des prescrits en matière d'enseignement pour construire des leçons et la phase d'analyse de ces construits en vue de les optimiser. Le présent article montre les difficultés rencontrées par les enseignants, mais aussi par les formateurs. [less ▲]

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See detailParticipation des travailleurs et politiques ressources humaines
Robert, Jocelyne ULg

Article for general public (2007)

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See detailStudy of contribution of signalling pathways Notch, Wnt, Shh and BMP in mesenchymal stem cell prohaematopoietic activity
Briquet, Alexandra ULg; Dolhet, Marie; Demeuse, Jessica et al

in Acta Clinica Belgica (2007, August), 62(4), 256

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See detailGaydar : Les homosexuels ont-ils une aptitude à se reconnaître entre eux? Influence des indices visuels statiques, des stéréotypes et du niveau d'homophobie
Piazza, Aurélie ULg

Master's dissertation (2007)

Au travers de ce mémoire, nous avons tenté de voir si les homosexuels arrivaient à se reconnaître entre eux, sur base d'indices visuels statiques, mieux que ne le feraient les hétérosexuels. Nous avons ... [more ▼]

Au travers de ce mémoire, nous avons tenté de voir si les homosexuels arrivaient à se reconnaître entre eux, sur base d'indices visuels statiques, mieux que ne le feraient les hétérosexuels. Nous avons également étudié les caractéristiques faciales utilisées par les juges pour dire d'une personne qu'elle est homosexuelle et avons étudié l'influence des stéréotypes de masculinité/féminité et d'attractivité dans l'émission d'un jugement d'orientation sexuelle. Enfin, nous avons essayé de savoir si le niveau d'homophobie avait un impact sur le taux de reconnaissance de celle-ci. [less ▲]

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See detailSpatial and temporal (30 yr.) variations of lead geochemical signature in a macrotidal highly polluted estuary
Taillez, A.; Jacqmot, A.; Petit, Jérôme et al

in Geochimica et Cosmochimica Acta (2007, August), 71(15, Suppl. S), 993-993

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See detailAre Belgian hospitals prepared for an H5NI1-pandemic?
De Cauwer, H. G.; Mortelmans, L. J. M.; D'Orio, Vincenzo ULg

in European Journal of Emergency Medicine (2007), 14(4), 204-206

Objective Virulent airborne diseases can be a real burden to a nation's health system. The most recent threat is the fear of a mutation-induced H5N1-influenza pandemic. We studied whether Belgian ... [more ▼]

Objective Virulent airborne diseases can be a real burden to a nation's health system. The most recent threat is the fear of a mutation-induced H5N1-influenza pandemic. We studied whether Belgian hospitals are able to deal with H5N1-influenza infected patients in the case of a pandemic. Many patients, including children, may require artificial ventilation within 48h after admission. Methods A survey aimed at determining 'availability and preparedness' was sent by e-mail to the different Belgian Emergency Departments. Results and discussion Sixty-five hospitals were finally included. The amount of patients being potentially admitted is limited, owing to the reduced number of intensive care beds equipped with automatic ventilators. Furthermore, the number of available intensive care beds for children is still lower than for adult patients. The number of mortuary places, in the case of a catastrophe, is also insufficient. Although most hospitals set up a disaster plan on H5N1, there are only limited stocks of antiviral medication to protect the hospital staff in the acute phase. A separate triage area is only available in a limited number of hospitals. We conclude that Belgian hospitals and emergency departments are not equipped to deal with potential pandemic situations. [less ▲]

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See detailLevosimendan: Right for the right ventricle?
Lambermont, Bernard ULg; Ghuysen, Alexandre ULg; Harstein, Gary et al

in Critical Care Medicine (2007), 35(8), 1995-1996

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See detailStrontium ranelate normalizes bone mineral density in osteopenic patients
Malaise, Olivier ULg; Bruyère, Olivier ULg; Reginster, Jean-Yves ULg

in Aging Clinical & Experimental Research (2007), 19(4), 330-333

AIMS: To assess the capacity of strontium ranelate to restore normal bone mineral density (WHO definition: T-score >or=-1) in post-menopausal osteopenic women (T-score between -1 and -2.5) at baseline ... [more ▼]

AIMS: To assess the capacity of strontium ranelate to restore normal bone mineral density (WHO definition: T-score >or=-1) in post-menopausal osteopenic women (T-score between -1 and -2.5) at baseline. METHODS: Post-hoc analysis from SOTI and TROPOS studies of 1428 patients randomly assigned to receive either 2 g of strontium ranelate a day or placebo for three years. Bone mineral density was measured at baseline and each year for three years. Results were analyzed on an intention-to-treat basis. RESULTS: At lumbar spine, after one, two and three years of treatment with strontium ranelate, 26.4, 42.1 and 58.2% respectively of osteopenic patients normalized their bone mineral density, compared with 6.6, 8.9 and 11.9% in the placebo group (all p<0.001). At total hip, the percentage of patients normalizing their bone mineral density was 5.4, 10.0 and 19.6% in the strontium ranelate group and 1.8, 1.4 and 1.6% in the placebo one (all p<0.001). CONCLUSION: Strontium ranelate is able to normalize bone mineral density in a significant proportion of osteopenic patients after one, two and three years of treatment. The clinical relevance of these results should be confirmed by direct demonstration of the anti-fracture efficacy of strontium ranelate in osteopenic patients. [less ▲]

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See detailRelationship between bone mineral density changes and fracture risk reduction in patients treated with strontium ranelate
Bruyère, Olivier ULg; Roux, C.; Detilleux, Johann ULg et al

in Journal of Clinical Endocrinology and Metabolism (2007), 92(8), 3076-3081

Objective: Our objective was to analyze the relationship between bone mineral density (BMD) changes and fracture incidence during 3-yr treatment with strontium ranelate. Patients: Women from the strontium ... [more ▼]

Objective: Our objective was to analyze the relationship between bone mineral density (BMD) changes and fracture incidence during 3-yr treatment with strontium ranelate. Patients: Women from the strontium ranelate arm of the Spinal Osteoporosis Therapeutic Intervention study and the TReatment Of Peripheral OSteoporosis study were evaluated. Outcome Measures: The outcome measures included BMD at the lumbar spine, femoral neck, and total proximal femur assessed at baseline and after a follow-up of 1 and 3 yr; semiquantitative visual assessment of vertebral fractures; and nonvertebral fractures based on written documentation. Results: After 3 yr of strontium ranelate treatment, each percentage point increase in femoral neck and total proximal femur BMD was associated with a 3%(95% adjusted confidence interval, 1-5%) and2% (1-4%) reduction in risk of a new vertebral fracture, respectively. The 3- yr changes in femoral neck and total proximal femur BMD explained 76% and 74%, respectively, of the reduction in vertebral fractures observed during the treatment. Three-year changes in spine BMD were not statistically associated with the incidence of new vertebral fracture (P = 0.10). No significant associations were found between 3- yr changes in BMD and incidence of new nonvertebral fractures, but a trend was found for femoral neck BMD (P = 0.09) and for total proximal femur BMD (P = 0.07). An increase in femoral neck BMD after 1 yr was significantly associated with the reduction in incidence of new vertebral fractures observed after 3 yr (P = 0.04). Conclusion: During 3-yr strontium ranelate treatment, an increase in femoral neck BMD was associated with a proportional reduction in vertebral fracture incidence. [less ▲]

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See detailComment former les futurs enseignants en langues modernes aux réformes du système éducatif ?
Simons, Germain ULg

in Puzzle (2007), (22), 23-31

Cet article décrit et commente les grands axes sur lesquels le Service de didactique des Langues et Littératures modernes de l'ULg a travaillé ces dernières années pour (mieux) préparer les futurs ... [more ▼]

Cet article décrit et commente les grands axes sur lesquels le Service de didactique des Langues et Littératures modernes de l'ULg a travaillé ces dernières années pour (mieux) préparer les futurs enseignants de langues étrangères à faire face aux récentes réformes du système éducatif en Communauté française de Belgique. Former les enseignants aux réformes présuppose, bien sûr, une connaissance des textes légaux produits dans le cadre de cette réforme, dont le Décret Missions..., les référentiels de compétences, et les programmes de langues modernes. La mission de la formation initiale organisée par l'université - même si elle est, dans ce cas, professionnalisante - ne peut cependant se limiter à INFORMER les futurs enseignants sur ce cadre légal et à les aider à APPLIQUER, dans le(ur)s classes, la réforme des compétences. Le rôle de notre formation initiale universitaire est aussi de QUESTIONNER ce système éducatif et de développer chez les futurs enseignants une REFLEXION CRITIQUE sur ces réformes. [less ▲]

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See detailA unified management of congestions due to voltage instability and thermal overload
Capitanescu, Florin ULg; Van Cutsem, Thierry ULg

in Electric Power Systems Research (2007), 77(10), 1274-1283

This paper proposes two approaches for a unified management of congestions due to voltage instability and thermal overload in a deregulated environment. Both techniques aim to remove, in some optimal ... [more ▼]

This paper proposes two approaches for a unified management of congestions due to voltage instability and thermal overload in a deregulated environment. Both techniques aim to remove, in some optimal manner, voltage and thermal congestions stemming from base case or post-contingency states, by a simultaneous handling of operating and security constraints with respect to several contingencies. The objective of the first approach is to adjust the market-based power injections (generator output and possibly load consumption) at the least cost while the second one aims at curtailing power transactions in a transparent and non-discriminatory way. These techniques rely on sensitivities which pinpoint the best remedial actions against congestions owing to voltage instability and thermal overload. Numerical results with both approaches are provided on a realistic 80-bus system model. (c) 2006 Elsevier B.V. All rights reserved. [less ▲]

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See detailDoes propofol alter membrane fluidity at clinically relevant concentrations? An ESR spin label study
Bahri, Mohamed Ali ULg; Seret, Alain ULg; Hans, Pol ULg et al

in Biophysical Chemistry (2007), 129(1), 82-91

General anesthetics have been shown to perturb the membrane properties of excitable tissues. Due to their lipid solubility, anesthetics dissolve in every membrane, penetrate into organelles and interact ... [more ▼]

General anesthetics have been shown to perturb the membrane properties of excitable tissues. Due to their lipid solubility, anesthetics dissolve in every membrane, penetrate into organelles and interact with numerous cellular structures in multiple ways. Several studies indicate that anesthetics alter membrane fluidity and decrease the phase-transition temperature. However, the required concentrations to induce such effects on the properties of membrane lipids are by far higher than clinically relevant concentrations. In the present study, the fluidizing effect of the anesthetic agent propofol (2,6-diisopropyl phenol: PPF), a general anesthetic extensively used in clinical practice, has been investigated on liposome dimyristoyi-L-alpha phosphatidylcholine (DMPC) and cell (erythrocyte, Neuro-2a) membranes using electron spin resonance spectroscopy (ESR) of nitroxide labeled fatty acid probes (5-, 16-doxyl stearic acid). A clear effect of PPF at concentrations higher than the clinically relevant ones was quantified both in liposome and cell membranes, while no evident fluidity effect was measured at the clinical PPF doses. However, absorption spectroscopy of merocyanine 540 (MC540) clearly indicates a PPF fluidizing capacity in liposome membrane even at these clinical concentrations. PPF may locally influence the structure and dynamics of membrane domains, through the formation of small-scale lipid domains, which would explain the lack of ESR information at low PPF concentrations. (c) 2007 Elsevier B.V. All rights reserved. [less ▲]

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See detailModel predictive control to alleviate thermal overloads
Otomega, Bogdan; Marinakis, Adamantios ULg; Glavic, Mevludin et al

in IEEE Transactions on Power Systems (2007), 22(3), 1384-1385

An approach inspired by model predictive control is proposed to determine a sequence of control actions aimed at alleviating thermal overloads. The algorithm brings the line currents below their limits in ... [more ▼]

An approach inspired by model predictive control is proposed to determine a sequence of control actions aimed at alleviating thermal overloads. The algorithm brings the line currents below their limits in the time interval left by protections while accounting for constraints on control changes at each step. Its closed-loop nature allows to compensate for model inaccuracies. [less ▲]

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See detailStability of intact parathyroid hormone in samples from hemodialysis patients
Cavalier, Etienne ULg; Delanaye, Pierre ULg; Carlisi, Agnès et al

in Kidney International (2007), 72(3), 370-372

The determination of intact parathyroid hormone levels is used for diagnosis and in the management of renal osteodystrophy. Pre-analytical and analytical conditions are important in the overall confidence ... [more ▼]

The determination of intact parathyroid hormone levels is used for diagnosis and in the management of renal osteodystrophy. Pre-analytical and analytical conditions are important in the overall confidence of the assay. Unfortunately, there are no clear recommendations for the use of serum samples or samples anticoagulated with ethylenediaminotetraacetic acid (EDTA) for the best preservation of intact parathyroid hormone. In our study, the Roche Elecsys assay was used to measure intact hormone in both serum and EDTA plasmas from 16 hemodialysis patients over the span of a month. Parathyroid hormone stability was determined in samples kept frozen for 1-5 days or after 8-24 h at room temperature. There was no difference in hormone stability between serum and EDTA samples after 1 day in frozen storage. After 5 days frozen, hormone degradation was significantly greater after EDTA anticoagulation than in serum aliquots. When samples were stored at room temperature, intact parathyroid hormone was significantly more stable in EDTA-treated samples than in clotted serum samples, especially after 24 h. We conclude that optimum results are achieved in the measurement of intact parathyroid hormone levels depending on the workflow of the lab. If the lab works with intermittent batches of samples, frozen serum is the best. If the lab services general practitioners and/or several hospitals and has a continuous flow of samples, EDTA-treated samples stored at room temperature are the best. [less ▲]

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See detailUnusual resistivity hysteresis in a bulk magnetoresistive ferromagnetic/ferrimagnetic composite (La0.7Ca0.3MnO3/Mn3O4): Role of demagnetization effects
Vertruyen, Bénédicte ULg; Cloots, Rudi ULg; Ausloos, Marcel ULg et al

in Applied Physics Letters (2007), 91(6), 062514

The authors report an intriguing resistivity versus magnetic field dependence in polycrystalline composite samples containing a magnetoresistive manganite (ferromagnetic/conducting La0.7Ca0.3MnO3) and a ... [more ▼]

The authors report an intriguing resistivity versus magnetic field dependence in polycrystalline composite samples containing a magnetoresistive manganite (ferromagnetic/conducting La0.7Ca0.3MnO3) and a magnetic manganese oxide (ferrimagnetic/insulating Mn3O4). At 10 K, when the magnetic field is scanned from positive to negative values, the resistance peak occurs at positive magnetic field, instead of zero or negative field as usually observed in polycrystalline manganite samples. The position of the resistance peak agrees well with the cancellation of the internal magnetic field, suggesting that the demagnetization effects are responsible for this behavior. (c) 2007 American Institute of Physics. [less ▲]

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See detailFacial expressions of emotion influence memory for facial identity in an automatic way
D'Argembeau, Arnaud ULg; Van der Linden, Martial ULg

in Emotion (Washington, D.C.) (2007), 7(3), 507-515

Previous studies indicate that the encoding of new facial identities in memory is influenced by the type of expression displayed by the faces. fit the current study, the authors investigated whether or ... [more ▼]

Previous studies indicate that the encoding of new facial identities in memory is influenced by the type of expression displayed by the faces. fit the current study, the authors investigated whether or not this influence requires attention to be explicitly directed toward the affective meaning of facial expressions. In a first experiment, the authors found that facial identity was better recognized when the faces were initially encountered with a happy rather than an angry expression, even when attention wits oriented toward facial features other than expression. Using the Remember/Know/Guess paradigm in a second experiment, the authors found that the influence of facial expressions on the conscious recollection of facial identity was even more pronounced when participants' attention wits not directed toward expressions. It is suggested that the affective meaning of facial expressions automatically modulates the encoding of facial identity in memory. [less ▲]

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