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See detailLe diabete gestationnel
Pintiaux, Axelle ULg; Foidart, Jean-Michel ULg

in Revue Médicale de Liège (2005), 60(5-6, May-Jun), 338-43

Gestational diabetes mellitus is one of the major medical complications of pregnancy. This review describes the short and long term consequences of this affection, the screening strategy and the diagnosis ... [more ▼]

Gestational diabetes mellitus is one of the major medical complications of pregnancy. This review describes the short and long term consequences of this affection, the screening strategy and the diagnosis approach. The obstetrical management and the diabetes treatment with dietary strategies reducing carbohydrate intake and minimising the postprandial glucose levels are explained. Insulin treatment indication, place of insulin analogues, and use of oral antihyperglycaemic agents are also discussed. [less ▲]

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See detailLes bibliothèques vues par le monde de l'enseignement
Baye, Ariane ULg; Lafontaine, Dominique ULg

in Lectures : La Revue des Bibliothèques (2005), 141

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See detailL'orientation scolaire en Communauté française de Belgique
Demeuse, Marc ULg; Lafontaine, Dominique ULg

in Revue Internationale d'Education (2005), 38

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See detailMagneto-transport characterization of Dy123 monodomain superconductors
Pekala, Marek; Mucha, Jan ULg; Vanderbemden, Philippe ULg et al

in Applied Physics A : Materials Science & Processing (2005), 81(5), 1001-1007

We consider textured materials of the DyBa2Cu3O7 type seeded with a Nd123 seed as initiator. They are grown with an excess 20% Dy211 phase on a Dy2O3 substrate. We report chemical characterization ... [more ▼]

We consider textured materials of the DyBa2Cu3O7 type seeded with a Nd123 seed as initiator. They are grown with an excess 20% Dy211 phase on a Dy2O3 substrate. We report chemical characterization, electrical resistivity, thermoelectric power and thermal conductivity over a broad temperature range as a function of an applied magnetic field up to 6 T. We show that specific features appear in the magneto-thermal transport properties, different in these materials from those found in single crystals and polycrystalline samples. We propose that two vortex regimes can be distinguished in the mixed phase, due to the intrinsic microstructure. We calculate the viscosity, entropy and figure of merit of the samples. [less ▲]

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See detailLes (petites) filles modèles ont bien grandi
Lafontaine, Dominique ULg

in TRACeS de ChanGements (2005), 170(1),

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See detailMémoire à court terme verbale et développement lexical chez l'enfant normal et l'enfant avec troubles spécifiques du langage
Majerus, Steve ULg; Poncelet, Martine ULg

in Hommet, C. (Ed.) Neuropsychologie de l'enfant et troubles du développement (2005)

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See detailOccurrence of the genotype of the receptor gene for ryanodine (Ryr1) associated with sensitivity to stress in 5 Belgian porcine production systems
China, Bernard; Leroy, Bernadette ULg; Dams, Lorène ULg et al

in Annales de Médecine Vétérinaire (2005), 149(3), 161-165

Porcine stress syndrome is related to a point mutation in Ryr1 gene encoding the ryanodin receptor. This syndrome involves mortality after stress conditions or poor quality meat. Five hundred and five ... [more ▼]

Porcine stress syndrome is related to a point mutation in Ryr1 gene encoding the ryanodin receptor. This syndrome involves mortality after stress conditions or poor quality meat. Five hundred and five individuals among 5 Belgian production systems were genotyped. This genotyping was performed by polymerase chain reaction-restriction fragment length polymophism (PCR-RFLP) or real time PCR. The results indicated that 22,4 % of the pigs were stress sensitive (TT genotype) and 77,6 % stress resistant (63,4 % CT heterozygotes and 14,2 % CC genotype). Statistical analysis allowed to split the production systems into two groups: the production system 1 and 2 presenting a high level of TT individuals (44 % and 52 % respectively) although production systems 3, 4 and 5 presented a high level of heterozygotes individuals (74 %, 92 % and 78 % respectively). At the technical level, real time PCR appeared to be a faster and an easier technique than PCR-RFLP. [less ▲]

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See detailPhenomenal characteristics of autobiographical memories for emotional and neutral events in older and younger adults
Comblain, Christine; D'Argembeau, Arnaud ULg; Van der Linden, Martial ULg

in Experimental Aging Research (2005), 31(2), 173-189

The authors investigated age-related differences in phenomenal characteristics of autobiographical memories for positive, negative, and neutral events. Younger and older participants were asked to recall ... [more ▼]

The authors investigated age-related differences in phenomenal characteristics of autobiographical memories for positive, negative, and neutral events. Younger and older participants were asked to recall two specific memories of each type and then to rate their memories on several sensorial ( e. g., visual, taste) and contextual ( e. g., location, time) characteristics. The authors found that emotional ( both positive and negative) memories contained more sensorial and contextual details than neutral memories in both age groups, whereas positive and negative memories did not differ on most dimensions. In addition, negative memories were associated with a higher intensity of positive feelings and a reduced complexity of storyline in older as compared to younger adults. These results suggest that the effect of emotion on phenomenal characteristics of autobiographical memories is similar in younger and older adults, but that older adults tend to reappraise negative events in a more positive light than younger adults. [less ▲]

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See detailLe role des virus dans la pathogenie du diabete de type 1
Brilot, F.; Geenen, Vincent ULg

in Revue Médicale de Liège (2005), 60(5-6, May-Jun), 297-302

The precise role of viral infections in the pathogenesis of type 1 diabetes is still the subject of an important discussion. Coxsackievirus B4 (CVB4) is the virus the most implicated by a series of ... [more ▼]

The precise role of viral infections in the pathogenesis of type 1 diabetes is still the subject of an important discussion. Coxsackievirus B4 (CVB4) is the virus the most implicated by a series of epidemiological studies. Pathogenic mechanisms underlying such a relationship implicate a molecular mimicry between CVB4 sequences and beta-cell autoantigens, but mainly a persistent CVB4 infection of pancreatic beta cells followed by a release of sequestered beta antigens and a "bystander" activation of autoreactive T cells. The demonstration of intrathymic expression of antigens specific of peripheral tissues has opened a novel research perspective. We have shown that CVB4 is able to infect in a persistent and producive manner human thymic epithelial cell cultures and human fetal thymic lobes in organotypic cultures. This infection induces an important thymic dysfunction characterized by a severe depletion of thymocytes (thymic T cells) and an up-regulated expression by thymic epithelial and T cells of class I proteins encoded by the major histocompatibility complex (MHC-I). Such thymic dysfunction might be responsible for a decrease of beta-cell central self-tolerance and anti-CVB4 cytotoxic CD8 T-cell activity. CVB4-induced thymic dysfunction would contribute in close association with the peripheral "bystander" effect to the destruction of insulin-secreting islet beta cells and to the development of type 1 diabetes. [less ▲]

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See detailNouvelles donnees sur la pathogenie du diabete de type 1
Geenen, Vincent ULg; Brilot, F.; Louis, Céline ULg et al

in Revue Médicale de Liège (2005), 60(5-6, May-Jun), 291-6

The autoimmune nature of the diabetogenic process and the major contribution of T lymphocytes stand now beyond any doubt. However, despite the identification of the three major type 1-diabetes-related ... [more ▼]

The autoimmune nature of the diabetogenic process and the major contribution of T lymphocytes stand now beyond any doubt. However, despite the identification of the three major type 1-diabetes-related autoantigens (insulin, GAD65 and phosphatase IA-2), the origin of this immune dysregulation still remains unknown. More and more evidence supports a thymic dysfunction in the establishment of central self-tolerance to the insulin family as a crucial factor in the development of the autoimmune response selective of pancreatic insulin-secreting islet beta cells. All the genes of the insulin family (INS, IGF1 and IGF2) are expressed in the thymus network. However, IGF-2 is the dominant member of this family first encountered by T cells in the thymus, and only IGFs control early T-cell differentiation. IGF2 transcription is defective in the thymus in one animal model of type 1 diabetes, the Bio-Breeding (BB) rat. The sequence B9-23, one dominant autoantigen of insulin, and the homologous sequence B11-25 derived from IGF-2 exibit the same affinity and fully compete for binding to DQ8, one class-II major histocompatibility complex (MHC-II) conferring major genetic susceptibility to type 1 diabetes. Compared to insulin B9-23, the presentation of IGF-2 B11-25 to peripheral mononuclear cells (PBMCs) isolated from type 1 diabetic DQ8+ adolescents elicits a regulatory/tolerogenic cytokine profile (*IL-10, *IL-10/IFN-g, *IL-4). Thus, administration of IGF-2 derived self-antigen(s) might constitute a novel form of vaccine/immunotherapy combining both an antagonism for the site of presentation of a susceptible MHC allele, as well as a downstream tolerogenic/regulatory immune response. [less ▲]

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See detailRecommandations pour l'elaboration d'un bilan fonctionnel de base du patient lombalgique
Demoulin, Christophe ULg; Fauconnier, C.; Vanderthommen, Marc ULg et al

in Revue Médicale de Liège (2005), 60(7-8, Jul-Aug), 661-8

This article aims to recommend easy, reproducible and valid physical tests and questionnaires to allow a functional and physical assessment of sub-acute and chronic low back pain patients. We recommend ... [more ▼]

This article aims to recommend easy, reproducible and valid physical tests and questionnaires to allow a functional and physical assessment of sub-acute and chronic low back pain patients. We recommend the pain visual analogue scale, the French translation of the Roland-Morris Disability Questionnaire (EIFEL) and the Dallas questionnaire to appreciate pain intensity and its influence on patients' quality of life. Sorensen's test is recommended in order to assess trunk extensor muscles endurance. We suggest to measure pelvic and lumbar flexion mobility by means of the inclinometer technique. The test described by McQuade is recommended to assess abdominal muscles static endurance. [less ▲]

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See detailSegment and combine approach for non-parametric time-series classification
Geurts, Pierre ULg; Wehenkel, Louis ULg

in Lecture Notes in Computer Science (2005), 3721

This paper presents a novel, generic, scalable, autonomous, and flexible supervised learning algorithm for the classification of multivariate and variable length time series. The essential ingredients of ... [more ▼]

This paper presents a novel, generic, scalable, autonomous, and flexible supervised learning algorithm for the classification of multivariate and variable length time series. The essential ingredients of the algorithm are randomization, segmentation of time-series, decision tree ensemble based learning of subseries classifiers, combination of subseries classification by voting, and cross-validation based temporal resolution adaptation. Experiments are carried out with this method on 10 synthetic and real-world datasets. They highlight the good behavior of the algorithm on a large diversity of problems. Our results are also highly competitive with existing approaches from the literature. [less ▲]

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See detailSpin glass behaviour and spin-dependent scattering in La0.7Ca0.3Mn0.9Cr0.1O3 perovskites
Wu, B. M.; Ausloos, Marcel ULg; Du, Y. L. et al

in Chinese Physics Letters (2005), 22(3), 686-689

The magnetic, electrical and thermal transport properties of the perovskite La0.7Ca0.3Mn0.9Cr0.1O3 have been investigated by measuring dc magnetization, ac susceptibility, the magnetoresistance and ... [more ▼]

The magnetic, electrical and thermal transport properties of the perovskite La0.7Ca0.3Mn0.9Cr0.1O3 have been investigated by measuring dc magnetization, ac susceptibility, the magnetoresistance and thermal conductivity in the temperature range of 5-300 K. The spin glass behaviour with a spin freezing temperature of 70 K has been well confirmed for this compound, which demonstrates the coexistence and competition between ferromagnetic and antiferromagnetic clusters by the introduction of Cr. Colossal magnetoresistance has been observed over the temperature range investigated. The introduction of Cr causes the "double-bump" feature in electrical resistivity rho(T). Anomalies on the susceptibility and the thermal conductivity associated with the double-bumps in rho(T) are observed simultaneously. The imaginary part of ac susceptibility shows a sharp peak at the temperature of insulating-metallic transition where the first resistivity bump was observed, but it is a deep-set valley near the temperature where the second bump in rho(T) emerges. The thermal conductivity shows an increase below the temperature of the insulating metallic transition, but the phonon scattering is enhanced accompanying the appearance of the second peak of double-bumps in rho(T). We relate those observed in magnetic and transport properties of La0.7Ca0.3Mn0.9Cr0.1O3 to the spin-dependent scattering. The results reveal that the spin-phonon interaction may be of more significance than the electron (charge)-phonon interaction in the mixed perovskite system. [less ▲]

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See detailSurvey of the Contamination of Foodstuffs of Animal Origin by Shiga Toxin Producing Escherichia Coli Serotype O157:H7 in Belgium from 1999 to 2003
Chahed, A.; Ghafir, Y.; China, B. et al

in Euro Surveillance : Bulletin Européen sur les Maladies Transmissibles = European Communicable Disease Bulletin (2005), 10(3), 9-10

A survey of the prevalence of Shiga toxin-producing Escherichia coli (STEC) of O157 serotype in foodstuffs of animal origin (beef, veal, pork, chicken, fish) from 1999 to 2003 in Belgium was performed ... [more ▼]

A survey of the prevalence of Shiga toxin-producing Escherichia coli (STEC) of O157 serotype in foodstuffs of animal origin (beef, veal, pork, chicken, fish) from 1999 to 2003 in Belgium was performed. STEC strains were only isolated from beef with a prevalence of 0.73%. This percentage is low in comparison with the prevalence in other countries. Among the 76 isolated STEC O157 strains, 75% belonged to the serotype O157:H7 and 25% to the serotype O157 non H7. Moreover, the most frequent pathotype was eae stx2 ehxA (74%). [less ▲]

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See detailTemperature dependence in random matrix models with pairing condensates
Vanderheyden, Benoît ULg; Jackson, A. D.

in Physical Review D (2005), 72(1), 016003

We address a number of issues raised by a manuscript of Klein, Toublan, and Verbaarschot [hep-ph/0405180] in which the authors introduce a random matrix model for QCD with two colors, two flavors, and ... [more ▼]

We address a number of issues raised by a manuscript of Klein, Toublan, and Verbaarschot [hep-ph/0405180] in which the authors introduce a random matrix model for QCD with two colors, two flavors, and fermions in the fundamental representation. Their inclusion of temperature terms differs from the approach adopted in previous work on this problem [Phys. Rev. D 64, 074016 (2001)]. We demonstrate that the two approaches are related by a transformation that leaves the thermodynamic potential invariant and which therefore has no effect on physical observables. [less ▲]

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See detailTracking by cluster analysis of feature points and multiple particle filters
Du, Wei ULg; Piater, Justus ULg

in Pattern Recognition and Image Analysis (2005)

A moving target produces a coherent cluster of feature points in the image plane. This motivates our novel method of tracking multiple targets by cluster analysis of feature points and Multiple particle ... [more ▼]

A moving target produces a coherent cluster of feature points in the image plane. This motivates our novel method of tracking multiple targets by cluster analysis of feature points and Multiple particle filters. First, feature points are detected by a Harris corner detector and tracked by a Lucas-Kanade tracker. Clusters of moving targets are then initialized by grouping spatially co-located points with similar motion using the EM algorithm. Due to the non-Gaussian distribution of the points in a cluster and the multi-modality resulting from multiple targets, multiple particle filters are applied to track all the clusters simultaneously: one particle filter is started for one cluster. The proposed method is well Suited for the typical video surveillance configuration where the cameras are still and targets of interest appear relatively small in the image. We demonstrate the effectiveness of our method on different PETS datasets. [less ▲]

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See detailUrgences medicales en diabetologie: l'acidocetose et le coma hyperosmolaire
Radermacher, Luc; D'Orio, Vincenzo ULg

in Revue Médicale de Liège (2005), 60(5-6, May-Jun), 466-71

Diabetic ketoacidosis and hyperglycaemic hyperosmolar state are relatively frequent metabolic emergencies. Such entities complicate type 1 and type 2 diabetes mellitus, respectively. Diagnosis is ... [more ▼]

Diabetic ketoacidosis and hyperglycaemic hyperosmolar state are relatively frequent metabolic emergencies. Such entities complicate type 1 and type 2 diabetes mellitus, respectively. Diagnosis is ultimately provided by blood and urine analysis. The pathophysiology is mainly based on insulin privation regarding ketoacidosis and resistance to insulin in hyperglycaemic crisis, with an additional deleterious role of counterregulatory hormones. Prognosis of such complications remains generally severe. Management is based on insulin infusion, fluid resuscitation as well as concomitant compensation for electrolytes losses. [less ▲]

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See detailAltered rhyolitic rocks in the Visé boreholes: a geochemical approach
Duchesne, Jean-Clair ULg; Goemaere, Eric; Grigolato, Jean-Christophe et al

in Geologica Belgica (2005), 8(3), 71-83

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See detailLe nouveau régime des successions internationales
Wautelet, Patrick ULg

in Revue Générale de Droit Civil Belge = Tijdschrift voor Belgisch Burgerlijk (2005)

Cette contribution fait le point sur les modifications apportées au régime des successions internationales par le Code de droit international privé. Loin de révolutionner la matière, le Code se contente ... [more ▼]

Cette contribution fait le point sur les modifications apportées au régime des successions internationales par le Code de droit international privé. Loin de révolutionner la matière, le Code se contente de prendre acte et de confirmer les principes classiques depuis longtemps acceptés. Sur le fond, les innovations sont limitées à des points secondaires. Partant, il faudra à l’avenir continuer de tenir compte du morcellement potentiel des successions en une masse mobilière et autant de masses immobilières qu’il y a d’immeubles dans des pays différents. L’étude des règles nouvelles révèle cependant que le Code apporte de nombreuses précisions et clarifications sur des questions qui n’avaient reçu, dans l’ancien droit, qu’un traitement sommaire, voire étaient restées sans réponse. C’est l’apport principal du Code de fournir une réglementation complète et détaillée d’une matière dont l’importance pratique ne cesse de croître.d [less ▲]

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