References of "Scientific journals"
     in
Bookmark and Share    
Full Text
See detailPiaget e Skinner : opposizioni e convergenze
Richelle, Marc ULg

in Età Evolutiva (2001), 70

Detailed reference viewed: 33 (2 ULg)
Full Text
Peer Reviewed
See detailRole of β-Oxidation Enzymes in γ-Decalactone Production by the Yeast Yarrowia lipolytica
Waché, Y.; Aguedo, Mario ULg; Choquet, A. et al

in Applied and Environmental Microbiology (2001), 67(12), 5700-5704

Some microorganisms can transform methyl ricinoleate into γ-decalactone, a valuable aroma compound, but yields of the bioconversion are low due to (i) incomplete conversion of ricinoleate (C18) to the C10 ... [more ▼]

Some microorganisms can transform methyl ricinoleate into γ-decalactone, a valuable aroma compound, but yields of the bioconversion are low due to (i) incomplete conversion of ricinoleate (C18) to the C10 precursor of γ-decalactone, (ii) accumulation of other lactones (3-hydroxy-γ-decalactone and 2- and 3-decen-4-olide), and (iii) γ-decalactone reconsumption. We evaluated acyl coenzyme A (acyl-CoA) oxidase activity (encoded by the POX1 through POX5 genes) in Yarrowia lipolytica in lactone accumulation and γ-decalactone reconsumption in POX mutants. Mutants with no acyl-CoA oxidase activity could not reconsume γ-decalactone, and mutants with a disruption of pox3, which encodes the short-chain acyl-CoA oxidase, reconsumed it more slowly. 3-Hydroxy-γ-decalactone accumulation during transformation of methyl ricinoleate suggests that, in wild-type strains, β-oxidation is controlled by 3-hydroxyacyl-CoA dehydrogenase. In mutants with low acyl-CoA oxidase activity, however, the acyl-CoA oxidase controls the β-oxidation flux. We also identified mutant strains that produced 26 times more γ-decalactone than the wild-type parents. [less ▲]

Detailed reference viewed: 21 (0 ULg)
Peer Reviewed
See detailAdding olanzapine to venlafaxine in treatment-refractory non-psychotic chronic depression
PITCHOT, William ULg; ANSSEAU, Marc ULg

in American Journal of Psychiatry (The) (2001)

Detailed reference viewed: 23 (0 ULg)
Full Text
Peer Reviewed
See detailLes configurations de risques comme approche de la résilience dans une étude longitudinale
Boët, S.; Born, Michel ULg

in Revue Québécoise de Psychologie (2001), 22(1), 93-116

Cette recherche s'inscrit dans le cadre d'une étude longitudinale des facteurs de risque et de protection en délinquance juvénile. Nous avons observé les pratiques éducatives de la mère ainsi que le ... [more ▼]

Cette recherche s'inscrit dans le cadre d'une étude longitudinale des facteurs de risque et de protection en délinquance juvénile. Nous avons observé les pratiques éducatives de la mère ainsi que le comportement de l'enfant de sa naissance à cinq ans. Nous avons pu mettre en évidence quatre configurations de risque familial qui s'avèrent contenir nombre des enfants les plus turbulents de notre échantillon. Cependant, ces configurations rassemblent aussi des enfants qui ne manifestent aucun trouble comportemental, ce sont des enfants que nous considérons comme résilients. [less ▲]

Detailed reference viewed: 169 (25 ULg)
Full Text
Peer Reviewed
See detailIntervalle entre vêlage chez la vache Borgou au Benin
Adamou-N'Diaye, M.; Ogodija, O. J.; Gbangboche, A. B. et al

in Annales de Médecine Vétérinaire (2001), 145(2), 130-136

This retrospective study has been carry out in the Monastery bovine exploitation of Kokoubou (department of Borgou in Benin). Data were collected and analysed from individual cow records of 1967 to 1989 ... [more ▼]

This retrospective study has been carry out in the Monastery bovine exploitation of Kokoubou (department of Borgou in Benin). Data were collected and analysed from individual cow records of 1967 to 1989. It concerned 150 Borgou cows and 838 calving intervals. The following parameters have been determined: monthly frequency of calving and calving interval. Monthly frequencies of calving are not regrouped in rainy season. Calving intervals have decreased with lactation numbers, while the season presents no effect. [less ▲]

Detailed reference viewed: 216 (9 ULg)
Full Text
Peer Reviewed
See detailL'invention de la mélancolie. Note sur l'ancienneté de la photographie
Havelange, Carl ULg

in Journal Français de Psychiatrie. Clinique, Scientifique et Psychanalytique (2001), 16

Detailed reference viewed: 24 (0 ULg)
Full Text
Peer Reviewed
See detailDefict in recognition of emotional facial expression are still oresent in alcoholics after mid to long term abstinence
Kornreich, C; Blairy, Sylvie ULg; Philippot, P et al

in Journal of Studies on Alcohol (2001), 62(4), 533-542

Detailed reference viewed: 15 (6 ULg)
Full Text
Peer Reviewed
See detailRecommandations for the registration of drugs used in the treatment of osteoarthritis : an update on biochemical markers
Vignon, E; Gamero, P; Delmas, P et al

in Osteoarthritis and Cartilage (2001), 9

Detailed reference viewed: 13 (2 ULg)
Peer Reviewed
See detailEstimation of shortening rate since late Pleistocene in the Aksu area on the southern flank of the Tianshan
Wang, X.; Jia, C. Z.; Hubert, Aurelia ULg et al

in Science in China. Series D : Earth Sciences (2001), 44

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailGenotypical and phenotypical characterization of potential virulence of intestinal avian Escherichia coli strains isolated in Algeria
Mellata, M.; Bakour, R.; Jacquemin, E. et al

in Avian Diseases (2001), 45

In order to characterize potential pathogenic Escherichia coli strains isolated from diarrheic hens and chickens originating from intensive battery rearing in North Algeria, the presence of a large range ... [more ▼]

In order to characterize potential pathogenic Escherichia coli strains isolated from diarrheic hens and chickens originating from intensive battery rearing in North Algeria, the presence of a large range of virulence factors and markers was studied in 50 strains by DNA-DNA hybridization on colonies and phenotypic tests. The sequences we focused on were those coding for adhesins F5, F41, F17, Pap, Afa, and Sfa; intimin Eae; and toxins STa, STb, LT1, Stx1, Stx2, CNF1, and CNF2. The phenotypes explored were the colicins, aerobactin, hemolysins, and hemagglutinin production and serum resistance. The genotypic and phenotypic tests enabled us to categorize the isolates into two distinct groups: those with a potential to invade the host (27 strains were serum resistant and/or produced aerobactin), among which three strains were also potentially diarrheagenic, one strain was LT1 + F17+ Afa+ Pap+ (enterotoxigenic E. coli) and the two others were Stx1 (verotoxigenic E. coli). Twenty-three strains were colicinogenic, including 19 strains producing colicin V. This latter factor was also detected in isolates negative for the other virulence factors. On the basis of the type of erythrocytes agglutinated, we established 14 mannose-resistant hemagglutination patterns among the 37 strains tested, including 22 serum-resistant and/or aerobactin producing strains and 15 strains negative for these two characters. None of the strains produced alpha hemolysin, whereas two strains produced beta hemolysin and enterohemolysin, respectively. Congo red fixation was observed in 25 strains. No relationship could be detected between Congo red fixation and the presence of other virulence markers, such as serum resistance and aerobactin production. This study shows that among isolates originating from the feces of diarrheic chickens, the proportion of potentially diarrheagenic E. coli strains is low. [less ▲]

Detailed reference viewed: 27 (2 ULg)
Peer Reviewed
See detailGilbert Boss : la fin de l'ordre économique
Jacquemain, Marc ULg

in Réseaux : Revue Interdisciplinaire de Philosophie Morale et Politique (2001), 81-92-93

L'ouvrage propose une transformation radicale des valeurs pour quitter l'ordre marchand. S'il partage des intuitions avec la vision marxiste, il s'en écarte aussi radicalement par son élitisme parfois ... [more ▼]

L'ouvrage propose une transformation radicale des valeurs pour quitter l'ordre marchand. S'il partage des intuitions avec la vision marxiste, il s'en écarte aussi radicalement par son élitisme parfois presque anti-démocratique. On pourrait parler à propos de Gilbert Boss, de socialisme conservateur aristocratique. Une utopie décapante mais pas forcément séduisante. [less ▲]

Detailed reference viewed: 89 (3 ULg)
Full Text
Peer Reviewed
See detailThe occurrence of the ilio-lumbar syndrome in a spinal cord injury patient
Chantraine, A.; Bosson, L.; Malaise, Michel ULg et al

in Spinal Cord : The Official Journal of the International Medical Society of Paraplegia (2001), 39(4), 237-239

STUDY DESIGN: Case report of a 71-year-old man having sustained a spinal cord injury (SCI) for 26 years. He started to suffer from low back pain 21 years after his onset and this was diagnosed as ilio ... [more ▼]

STUDY DESIGN: Case report of a 71-year-old man having sustained a spinal cord injury (SCI) for 26 years. He started to suffer from low back pain 21 years after his onset and this was diagnosed as ilio-lumbar syndrome (ILS). OBJECTIVES: To describe the problem of low back pain occurring after a change of wheelchair in a SCI, and to indicate the importance of the ilio-lumbar syndrome as a possible cause of low back complaint. OUTCOME: Clinical findings supported by echotomography confirmed the diagnosis of ILS in our case. CONCLUSION: ILS should be considered when some changes and deterioration of the status of SCI occur due to low back complaint. [less ▲]

Detailed reference viewed: 12 (0 ULg)
Full Text
Peer Reviewed
See detailDe Bergson à Merleau-Ponty : pour une anthropologie de la mémoire
Frère, Bruno ULg

in Réseaux : Revue Interdisciplinaire de Philosophie Morale et Politique (2001), 18

On l'a dit et redit, la description de la mémoire par H. Bergson renvoie essentiellement, sinon à la mise en scène d'un mécanisme individuel clos et hermétique, en tout cas à l'aperçu d'une élaboration ... [more ▼]

On l'a dit et redit, la description de la mémoire par H. Bergson renvoie essentiellement, sinon à la mise en scène d'un mécanisme individuel clos et hermétique, en tout cas à l'aperçu d'une élaboration strictement "psychologique" de souvenirs que tout au plus "des mots permettent d'exprimer". Il n'est dès lors pas étonnant qu'à cet égard, Bergson n'ait pas vu "que notre mémoire se ressaisit, au fur et à mesure que nous avançons, (...) sous une forme nouvelle" au sein de cadres sociaux dont l'évolution n'a de cesse de restructurer les souvenirs qui la composent. Selon Halbwachs, "il n'est pas de souvenir qui puisse être dit purement intérieur, c'est-à-dire qui ne puisse se conserver que dans la mémoire individuelle". Ce que le sociologue reproche ainsi au philosophe c'est de ne pas tenir compte du fait qu'un "souvenir reproduit avant tout une perception collective". De ce fait, sa pensée ne permettrait nullement de composer avec la dimension sociale des souvenirs puisqu'ils appartiendraient en propre à divers psychismes hétérogènes qui, du point de vue de ceux qui les observent, se trouvent séparés et isolés "comme par une multitude de cloisons étanches". Ce que nous souhaitons suggérer ici n'est pas, à proprement parler, une nouvelle lecture "exhaustive" de Matière et mémoire qui prétendrait sauver Bergson de la critique sociologique dorénavant consacrée d'Halbwachs. L'ambition de ces lignes sera plutôt d'envisager la manière dont le dernier Merleau-Ponty, s'interrogeant sur l'importance décisive de ce qu'il nomme "le monde culturel", nous autorise à envisager une conception de la mémoire qui réserverait une place réelle à l'altérité tout en se réclamant d'une forme de bergsonisme sensiblement renouvelée et tout en inscrivant ses thèses sur un même terrain philosophique. [less ▲]

Detailed reference viewed: 306 (6 ULg)
Peer Reviewed
See detailModelling short-term CO2 fluxes and long-term tree growth in temperate forests with ASPECTS
Rasse, Daniel P.; François, Louis ULg; Aubinet, Marc ULg et al

in Ecological Modelling (2001), 141(1-3), 35-52

The net ecosystem exchange (NEE) Of CO2 between temperate forests and the atmosphere governs both carbon removal from the atmosphere and forest growth. In recent years, many experiments have been ... [more ▼]

The net ecosystem exchange (NEE) Of CO2 between temperate forests and the atmosphere governs both carbon removal from the atmosphere and forest growth. In recent years, many experiments have been conducted to determine temperate forest NEE. These data have been used by forest modellers to better understand the processes that govern CO, fluxes, and estimate the evolution of these fluxes under changing environmental conditions. Nevertheless, it is not clear whether models capable of handling short-term processes, which are mostly source-driven, can provide an accurate estimate of long-term forest growth, which is potentially more influenced by sink- and phenology-related processes. To analyse the interactions between short- and long-term processes, we developed the ASPECTS model, which predicts long-term forest growth by integrating, over time, hourly NEE estimates. Validation data consisting of measurements of NEE by eddy-covariance and forest carbon reservoir estimates were obtained from mixed deciduous and evergreen experimental forests located in Belgium. ASPECTS accurately estimated both: (1) the NEE fluxes for several years of data; and (2) the amount of carbon contained in stems, branches, leaves, fine and coarse roots. Our simulations demonstrated that: (1) NEE measurements in Belgian forests are compatible with forest growth over the course of the 20th century, and (2) that forest history and long-term processes need to be considered for accurate simulation of short-term CO2 fluxes. [less ▲]

Detailed reference viewed: 61 (24 ULg)
Full Text
Peer Reviewed
See detailEffects of Brassicaceae secondary metabolites on the Glutathione S-transferase activity from Episyrphus balteatus De Geer (Diptera: Syrphidae)
Vanhaelen, N.; Haubruge, Eric ULg; Francis, Frédéric ULg

in Pesticide Biochemistry & Physiology (2001), 71(3), 170-177

Detailed reference viewed: 36 (1 ULg)
Peer Reviewed
See detailGiacomo Leopardi e Francesco Guicciardini
Moreno, Paola ULg

in Studi e Problemi di Critica Testuale (2001), LXII

Detailed reference viewed: 188 (1 ULg)
Peer Reviewed
See detailCentral amplification of somatosensory inputs: an evoked potentials study
DIVE, Dominique ULg; Schmetz, E.; Polis, M. et al

in Journal of Neurology (2001)

Detailed reference viewed: 14 (0 ULg)
Full Text
Peer Reviewed
See detailIntracellular pH-dependent efflux of the fluorescent probe pyranine in the yeast Yarrowia lipolytica
Aguedo, Mario ULg; Waché, Y.; Belin, J.-M.

in FEMS Microbiology Letters (2001), 200(2), 185-189

8-Hydroxypyrene-1,3,6-trisulfonic acid (pyranine) can be used as a vital intracellular pH (pHi) indicator. In the yeast Yarrowia lipolytica, a partial efflux of the probe was detected by using the pH ... [more ▼]

8-Hydroxypyrene-1,3,6-trisulfonic acid (pyranine) can be used as a vital intracellular pH (pHi) indicator. In the yeast Yarrowia lipolytica, a partial efflux of the probe was detected by using the pH-independent wavelength of 415 nm. A simplified correction of the fluorescent signals was applied, enabling to show for this species a good near-neutral pHi maintenance capacity in a pH 3.9 medium. Octanoic acid, which is known to have toxic effects on yeast, decreased the pHi and increased the 260-nm-absorbing compounds leakage. However, this acid inhibited the fluorescent probe efflux linearly with its concentration suggesting a pHi-dependent efflux of pyranine from cells. © 2001 Federation of European Microbiological Societies. [less ▲]

Detailed reference viewed: 12 (0 ULg)
Peer Reviewed
See detailComparative sequence analysis of the imprinted Dlk1-Gtl2 locus in three mammalian species reveals highly conserved genomic elements and refines comparison with the Igf2-H19 region.
Paulsen, M.; Takada, S.; Youngson, N. A. et al

in Genome Research (2001), 11(12), 2085-94

The Dlk1-Gtl2 domain on mouse chromosome 12 contains reciprocally imprinted genes with the potential to contribute to our understanding of common features involved in imprinting control. We have sequenced ... [more ▼]

The Dlk1-Gtl2 domain on mouse chromosome 12 contains reciprocally imprinted genes with the potential to contribute to our understanding of common features involved in imprinting control. We have sequenced this conserved region in the mouse and sheep and included the human sequence in a three species comparison. This analysis resulted in a precise conservation map and identification of highly conserved sequence elements, some of which we have shown previously to be differentially methylated in the mouse. Additionally, this analysis facilitated identification of a CpG-rich tandem repeat array located approximately 13-15 kb upstream of Gtl2. Furthermore, we have identified a third imprinted transcript that overlaps with the last Dlk1 exon in the mouse. This transcript lacks a conserved open reading frame and is probably generated by cleavage of extended Dlk1 transcripts. Because Dlk1 and Gtl2 share many of the imprinting properties of the well-characterized Igf2-H19 domain, it has been proposed that the two regions may be regulated in the same way. Comparative genomic examination of the two domains indicates that although there are similarities, other features are very different, including the location of conserved CTCF-binding sites, and the level of conservation at regulatory regions. [less ▲]

Detailed reference viewed: 16 (3 ULg)
Peer Reviewed
See detailLe médicament parmi les thérapies relationnelles : Enquête et réflexions.
David, Claire; WAUTHY, Jacques ULg; Vaulet, Véronique et al

in Revue des Hôpitaux de Jour Psychiatriques et des Thérapies Institutionnelles (2001)

Detailed reference viewed: 32 (6 ULg)
Full Text
Peer Reviewed
See detailAllergic reactions to decorative skin paintings.
Nikkels, Arjen ULg; Henry, Frédérique ULg; Pierard, Gérald ULg

in Journal of the European Academy of Dermatology & Venereology (2001), 15(2), 140-2

BACKGROUND: Dye mixtures containing henna, P-phenylenediamine (PPD), and indigo are applied to the skin in various parts of the world for religious purposes, social recognition or fun. AIM: To identify ... [more ▼]

BACKGROUND: Dye mixtures containing henna, P-phenylenediamine (PPD), and indigo are applied to the skin in various parts of the world for religious purposes, social recognition or fun. AIM: To identify eventual allergens responsible for contact sensitization to skin decoration in three young children. Lesions remained strictly limited to the site painted during the summer holiday. None of the children had a previous history of contact dermatitis, but two of them suffered from severe seasonal allergic rhinoconjunctivitis. FINDINGS: Patch testing revealed severe contact hypersensitivity to PPD in all three patients, and one child presented a positive prick test to 1% henna in water. The eruptions resolved following spontaneous elimination of the dyes and topical applications of corticosteroids, but left residual depigmentation. CONCLUSION: PPD is the main allergen identified in allergic reactions to decorative skin paintings. [less ▲]

Detailed reference viewed: 26 (5 ULg)
Full Text
Peer Reviewed
See detailTeloptosis, a Turning Point in Hair Shedding Biorhythms
Pierard-Franchimont, Claudine ULg; Pierard, Gérald ULg

in Dermatology : International Journal for Clinical & Investigative Dermatology (2001), 203(2), 115-7

The timing regulation of the hair growth phases is quite complex. We name teloptosis the termination of the telogen phase with hair shedding. The initiation of the next anagen I phase is independent from ... [more ▼]

The timing regulation of the hair growth phases is quite complex. We name teloptosis the termination of the telogen phase with hair shedding. The initiation of the next anagen I phase is independent from teloptosis. Both events are triggered by distinct factors. Indeed, teloptosis is the result of the loss of adhesion between cells of the club hair and those of its epithelial envelope. Teloptosis synchronization is perceived as telogen effluvium, related or not to shortening of the anagen phase. Subtle changes leading to early or delayed teloptosis affect hair density. It is possible to distinguish two types of telogen hairs on a trichogram. Those with an epithelial sheath indicate strong binding, suggesting early telogen, whereas the absence of an epithelial sheath indicates loose binding, conveying teloptosis. [less ▲]

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detailEffects of 8-epi-Pgf2alpha on isolated bronchial smooth muscle of healthy and heaves-affected horses
Kirschvink, Nathalie; Art, Tatiana ULg; Lekeux, Pierre ULg et al

in Journal of Veterinary Pharmacology & Therapeutics (2001), 24(3), 215-221

8-Epi-PGF2alpha, a prostaglandin-like compound generated by oxidative stress, has been shown to be an in vitro bronchoconstrictor in airways from healthy laboratory animals and healthy humans, but it has ... [more ▼]

8-Epi-PGF2alpha, a prostaglandin-like compound generated by oxidative stress, has been shown to be an in vitro bronchoconstrictor in airways from healthy laboratory animals and healthy humans, but it has never been studied in diseased airways. Here, the bronchoconstrictive capacity of 8-epi-PGF2alpha on isolated bronchial rings (BR) of healthy and heaves-affected horses was evaluated by comparing the maximal effect and the potency of 8-epi-PGF2alpha to those of (1) acetylcholine (ACh), (2) its stereoisomer PGF2alpha and (3) its synthetic receptor agonist, U46619. Furthermore, the potential capacity of 8-epi-PGF2alpha to enhance the cholinergic (ACh) responsiveness of bronchial smooth muscle was investigated. 8-Epi-PGF2alpha contracted BR with a rank order of efficacy of Ach > U44619 > PGF2alpha > 8-epi-PGF2alpha in both healthy and heaves-affected horses. The contractile maximal response elicited by 8-epi-PGF2alpha was significantly smaller than that elicited by the other drugs, but was significantly higher in BR from heaves-affected horses than in those sampled in healthy horses, whilst pD2 values were similar. A subthreshold concentration of 8-epi-PGF2alpha (10-7 M) did not induce in vitro cholinergic hyper-responsiveness in BR of either healthy or heaves-affected horses. In conclusion, it has been demonstrated that 8-epi-PGF2alpha is an in vitro bronchoconstrictor of minor importance in healthy horses, but whose efficacy is significantly increased in heaves-affected horses. [less ▲]

Detailed reference viewed: 26 (1 ULg)
Full Text
Peer Reviewed
See detailSpécificité et histoire des discours sémiotiques
Badir, Sémir ULg; Arrivé, Michel

in Linx (2001), 44

Detailed reference viewed: 10 (0 ULg)
Full Text
Peer Reviewed
See detailAssociations between casein haplotypes and first lactation milk production traits in Finnish Ayrshire cows
Ikonen, T.; Bovenhuis, H.; Ojala, M. et al

in Journal of Dairy Science (2001), 84(2), 507-514

The objective of this study was to estimate the effects of ß--casein (CN) haplotypes on first-lactation milk production traits. The ß--CN haplotypes were deduced using information on ß- and -CN genotypes ... [more ▼]

The objective of this study was to estimate the effects of ß--casein (CN) haplotypes on first-lactation milk production traits. The ß--CN haplotypes were deduced using information on ß- and -CN genotypes of cows and their sires for 16,973 Finnish Ayrshire cows that had at least nine paternal half sibs. Effects of CN haplotypes on milk production traits were estimated for one haplotype at a time using an animal model, which included the fixed effects for calving year and month, age at calving, days open, ß-lactoglobulin, and a ß--CN haplotype. Differences in milk production traits were also estimated between haplotype combinations A1A+A2B and A1B+A2A within ß--CN genotype A1A2AB and between combinations A1E+A2A and A1A+A2E within genotype A1A2AE. The ß--CN haplotypes A2A and A2B were associated with high milk and protein yields and low fat content, and those that included the ß-CN A1 allele were associated with low yields and high fat content. Protein content was affected by the -CN locus; haplotype A1B was associated with high protein content and A1E was with low protein content. The haplotype combination A1A+A2B was associated with 140 kg more milk yield (P = 0.045) and 0.03 percentage units less protein content (P = 0.055) than combination A1B+A2A, and combination A1A+A2E showed 0.02 percentage units greater protein content (P = 0.098) than A1E+A2A. These results indicate that genes linked to the CN loci contribute to the variation in milk yield and protein content. [less ▲]

Detailed reference viewed: 22 (1 ULg)
Full Text
Peer Reviewed
See detailFellhanera gyrophorica, a new European species with conspicuous pycnidia
Sérusiaux, Emmanuël ULg; Coppins, Brian J.; Diederich, Paul et al

in Lichenologist (2001), 33

Detailed reference viewed: 3 (0 ULg)
Full Text
See detailPrésentation de la recherche sur le logement urbain wallon.
Frankignoulle, Pierre ULg; Dawance, Sophie ULg; Malherbe, Alain

in Cahiers de l'Urbanisme (Les) (2001), 37

Detailed reference viewed: 51 (5 ULg)
Full Text
Peer Reviewed
See detailIron microbial communities in Belgian Frasnian carbonate mounds
Boulvain, Frédéric ULg; De Ridder, C.; Mamet, B. et al

in Facies (2001), 44

The Belgian Frasnian carbonate mounds occur in three stratigraphic levels in an overall backstepping succession. Petit-Mont and Arche Members form the famous red and grey “marble” exploited for ornamental ... [more ▼]

The Belgian Frasnian carbonate mounds occur in three stratigraphic levels in an overall backstepping succession. Petit-Mont and Arche Members form the famous red and grey “marble” exploited for ornamental stone since Roman times. The evolution and distribution of the facies in the mounds is thought to be associated with ecologic evolution and relative sea-level fluctuations. Iron oxides exist in five forms in the Frasnian mounds; four are undoubtedly endobiotic organized structures: (1) microstromatolites and associated forms (blisters, veils...), possibly organized in “endostromatolites”; (2) hematitic coccoids and (3) non dichotomic filaments. The filaments resemble iron bacteria of the Sphaerotilus- Leptothrix "group"; (4) networks of dichotomic filaments ascribable to fungi; (5) a red ferruginous pigment dispersed in the calcareous matrix whose distribution is related to the mound facies type. The endobiotic forms developed during the edification of the mounds, before cementation by fibrous calcite. The microbial precipitation of iron took place as long as the developing mounds were bathed by water impoverished in oxygen. [less ▲]

Detailed reference viewed: 29 (6 ULg)
Full Text
Peer Reviewed
See detailAdaptive significance of facultative paedomorphosis in Triturus alpestris (Amphibia, Caudata): resource partitioning in an alpine lake
Denoël, Mathieu ULg; Joly, Pierre

in Freshwater Biology (2001), 46(10), 1387-1396

1. Facultative paedomorphosis is a polymorphism that has important evolutionary implications in promoting morphological differentiation and variation in habitat use. It occurs in several urodele species ... [more ▼]

1. Facultative paedomorphosis is a polymorphism that has important evolutionary implications in promoting morphological differentiation and variation in habitat use. It occurs in several urodele species throughout the world. Several hypotheses based on life-history theory have been proposed to explain the wide range of habitats in which facultative paedomorphosis occurs, suggesting multifactorial causes. 2. In harsh habitats, such as mountain lakes, paedomorphosis might promote niche partitioning between morphs. This hypothesis was tested by comparing micro-habitat use and diet of two coexisting morphs in an alpine lake. 3. Paedomorphs occupied all microhabitats in the lake while metamorphs occurred only along the shoreline or at the water surface. Paedomorphic newts were frequent in deep water, where they foraged mainly on plankton. Plankton was poorly exploited by metamorphic newts, which fed mainly on terrestrial insects. Difference between morphs in microhabitat use, and consequently in the diet, were consistent in both sexes and in juveniles. 4. In adults, the mass and energy value of stomach contents did not differ between morphs, suggesting a similar food availability in the habitats occupied. 5. This study indicates habitat partitioning between morphs involving dietary differences. Specific benefits and costs of each ontogenetic pathway may allow their coexistence in this deep and fishless lake. Paedomorphosis benefits individual newts by making new food resources available and presumably reducing competition at the shore of the lake. However, the proximate causes of such an ontogenetic switch remain unclear. [less ▲]

Detailed reference viewed: 223 (18 ULg)
Peer Reviewed
See detailLes bois de cerf : revue de littérature scientifique
Crigel, M-H; Balligand, Marc ULg; Heinen, Ernst ULg

in Annales de Médecine Vétérinaire (2001), 145

Detailed reference viewed: 63 (6 ULg)
Full Text
Peer Reviewed
See detailPraxéologies didactiques et praxéologies mathématiques, à propos d'un enseignement des limites au secondaire.
Schneider, Marguerite ULg

in Recherches en Didactique des Mathématiques (2001), 21(1-2), 7-50

Detailed reference viewed: 25 (1 ULg)
See detailnote sous J. P. Beveren, 7 avril 1998
Langenaken, Evelyne ULg

in Actualités du droit (2001), 2

Detailed reference viewed: 12 (2 ULg)
Full Text
Peer Reviewed
See detailA STUDY OF VACUUM FREEZE-DRYING OF FROZEN WET PAPERS
Carapelle, Alain ULg; Henrist, Marc; Rabecki, Frédéric ULg

in Drying Technology (2001), 19(6), 1113-1124

Vacuum freeze-drying of frozen wet papers was investigated experimentally. A freeze-drying facility was built to study the process by monitoring the various physical parameters (pressure, sample ... [more ▼]

Vacuum freeze-drying of frozen wet papers was investigated experimentally. A freeze-drying facility was built to study the process by monitoring the various physical parameters (pressure, sample temperature, heater temperature, water content of the sample and cold panel temperature). A simple phenomenological model was developed to explain experimental results. The values of the physical parameters were optimized to make the process cost effective. [less ▲]

Detailed reference viewed: 73 (10 ULg)
Peer Reviewed
See detailHemodiafiltration does not improve pulmonary hemodynamics in a porcine model of endotoxin shock
LAMBERMONT, Bernard ULg; Moonen, Marie ULg; Kolh, Philippe ULg et al

in Intensive Care Medicine (2001), 27(2), 181

Detailed reference viewed: 10 (2 ULg)
Peer Reviewed
See detailHistologic localization of PLAG1 (pleomorphic adenoma gene 1) in pleomorphic adenoma of the salivary gland: cytogenetic evidence of common origin of phenotypically diverse cells.
Debiec-Rychter, M.; Van Valckenborgh, I.; Van den Broeck, C. et al

in Laboratory Investigation : Journal of Technical Methods & Pathology (2001), 81(9), 1289-97

Pleomorphic adenoma gene 1 (PLAG1), a zinc finger transcription factor gene, is consistently rearranged and overexpressed in human pleomorphic adenomas of the salivary glands with 8q12 translocations. In ... [more ▼]

Pleomorphic adenoma gene 1 (PLAG1), a zinc finger transcription factor gene, is consistently rearranged and overexpressed in human pleomorphic adenomas of the salivary glands with 8q12 translocations. In this report, we describe the immunohistochemical localization of PLAG1 protein in pleomorphic adenomas of the salivary gland and corresponding normal tissue, in relation to cytokeratin, vimentin, and BCL-2 expression. Normal salivary gland tissue was not immunoreactive for PLAG1. In primary pleomorphic adenomas, cells strongly immunoreactive for PLAG1 were detected in the outer layer of tubulo-ductal structures, which are thought to be the origin of cells with bi-directional, epithelial, and mesenchymal phenotypes. In contrast, epithelial cells with abundant cytokeratin in the inner tubulo-ductal structures only sporadically expressed PLAG1. BCL-2 immunoreactivity was found mainly in the cells surrounding the tubulo-ductal structures and in the solid undifferentiated cellular masses, within the areas that had moderate PLAG1 immunoreactivity. The variability of PLAG1 expression in neoplastic cells seemed to reflect the morphologic heterogeneity that correlated with the stage of differentiation of the tumor cells. Immunohistochemical/cytogenetic evaluation of two pleomorphic adenomas with t(3;8)(p21;q12) or t(5;8)(p13;q12) translocations demonstrated the clonal nature of immunophenotypically diverse cells. This finding confirms the theory that pleomorphic adenoma cells share a common single-cell origin, most likely from the epithelial progenitor basal duct cells. [less ▲]

Detailed reference viewed: 24 (1 ULg)
Full Text
Peer Reviewed
See detailScytalidium Dimidiatum Melanonychia and Scaly Plantar Skin in Four Patients from the Maghreb: Imported Disease or Outbreak in a Belgian Mosque?
Arrese, J. E.; Pierard-Franchimont, Claudine ULg; Pierard, Gérald ULg

in Dermatology : International Journal for Clinical & Investigative Dermatology (2001), 202(2), 183-5

Scytalidium dimidiatum is a geophilic dematiaceous, non-dermatophyte mould that can become a pathogen for plants and humans particularly in tropical and subtropical regions. We report 4 cases of S ... [more ▼]

Scytalidium dimidiatum is a geophilic dematiaceous, non-dermatophyte mould that can become a pathogen for plants and humans particularly in tropical and subtropical regions. We report 4 cases of S. dimidiatum onychomycosis presenting clinically as thickened and dark toenails. The skin of the soles was scaly. The time and location of the contaminations were uncertain. Indeed, the patients were ancient immigrants from the Maghreb to Belgium. They were also regularly travelling to their countries of origin. They were also often barefoot in the same Belgian mosque. The disease was unresponsive to current oral antifungal treatments. [less ▲]

Detailed reference viewed: 20 (0 ULg)
Full Text
Peer Reviewed
See detailLe transsexualisme et l'anorexie mentale : emprise et tyrannie de la subjectivité : approches méthodologiques
Mormont, Christian ULg; Frankignoul, A.; Michel, Aude

in Pratiques psychologiques (2001), (3), 25-36

Detailed reference viewed: 88 (4 ULg)
Peer Reviewed
See detailL'Ecole du dos
Crielaard, Jean-Michel ULg; Henrotin, Yves ULg; DEFAWEUX, Michel ULg et al

in Bulletin d'Education du Patient à sa Maladie (2001), 20

Detailed reference viewed: 69 (18 ULg)
Full Text
Peer Reviewed
See detailConstitutive equations and numerical modelling of time effects in soft porous rocks
Datcheva, Maria; Charlier, Robert ULg; Collin, Frédéric ULg

in Lecture Notes in Computer Science (2001), 1988

A constitutive model is developed within the framework of Perzyna's viscoplasticity for predicting the stress-strain-time behaviour of soft porous rocks. The model is based on the hyperelasticity and ... [more ▼]

A constitutive model is developed within the framework of Perzyna's viscoplasticity for predicting the stress-strain-time behaviour of soft porous rocks. The model is based on the hyperelasticity and multisurface viscoplasticity with hardening. A time-stepping algorithm is presented for integrating the creep sensitive law. An example of application to one-dimensional consolidation is presented. The objectives are to: 1. present a soft rock model which is capable of taking into account the rate sensitivity, time effects and creep rupture; 2. to discuss the use of an incremental procedure for time stepping using large time increments and 3. to extend the finite element code Lagamine (MSM-ULg) for viscoplastic problems in geomechanics. [less ▲]

Detailed reference viewed: 61 (31 ULg)
Full Text
Peer Reviewed
See detailStand der osteoporose-Therapie. Ein Medizinischer Skandal
Reginster, Jean-Yves ULg

in MMW Fortschritte der Medizin (2001), 143(14), 43

Detailed reference viewed: 13 (1 ULg)
Peer Reviewed
See detailDie endoluminale, kardiovaskuläre Radiotherapie:ein neuer Standard
Coucke, Philippe ULg; Ciernik, I-F

in Praxis (2001), 90

The treatment for cardiovascular disease, especially the treatment of coronary stenosis, has been continously improving during the last decades. Routine use of angioplasty was improved by the use of ... [more ▼]

The treatment for cardiovascular disease, especially the treatment of coronary stenosis, has been continously improving during the last decades. Routine use of angioplasty was improved by the use of coronary stenting further reducing cardiac morbidity. However, the incidence of restenosis after cardiovascular angioplasty remains high. The restenosis process is mainly explained by neo-intimal proliferation. Therefore, the utility of ionizing radiation has been systematically investigated in order to reduce proliferation of the neointimal tissue. Radiation therapy turns out to be a very efficient approach in reducing the rate of both de novo lesions as well as of instant restenosis. Recent clinical data from randomized trials confirm the utility of intracoronary radiation therapy and change the treatment standards in interventional cardiology. [less ▲]

Detailed reference viewed: 20 (0 ULg)
Full Text
Peer Reviewed
See detailComparative study of twenty nine non parametric interaction tests in two-way layouts
Van Belle, Laurent; Claustriaux, Jean-Jacques ULg

in Multiciência (2001), 4(2), 179-196

Detailed reference viewed: 9 (0 ULg)
Full Text
Peer Reviewed
See detailNew species of the lichen genus Menegazzia in New Guinea
James, Peter W.; Aptroot, André; Diederich, Paul et al

in Bibiotheca Lichenologica (2001), 78

Detailed reference viewed: 19 (0 ULg)
Peer Reviewed
See detailEffect of hemodiafiltration on pulmonary hemodynamics in a model of porcin endotoxin shock
Moonen, Marie ULg; LAMBERMONT, Bernard ULg; Kolh, Philippe ULg et al

in Journal of the American Society of Nephrology [=JASN] (2001), 12

Detailed reference viewed: 7 (2 ULg)
Full Text
Peer Reviewed
See detailActualités thérapeutiques de la polyarthrite rhumatoïde
Ribbens, Clio ULg; Andre, Béatrice ULg; Kaye, O. et al

in Revue de la Médecine Générale [=RMG] (2001), 186

Detailed reference viewed: 88 (4 ULg)
Full Text
Peer Reviewed
See detailLe fédéralisme budgétaire : mode d'emploi
Husson, Jean-François ULg

in Reflets et Perspectives de la Vie Economique (2001), XL(3), 176

Detailed reference viewed: 82 (14 ULg)
Full Text
Peer Reviewed
See detailLes sanctions administratives dans les communes : en route vers le droit communal armé
Masset, Adrien ULg

in Journal des Tribunaux (2001), 6031(2001), 833-838

La nouvelle loi belge du 13 mai 1999 permet désormais aux communes de réglementer une série de comportements en en assurant le respect par le recours à des sanctions administratives, alors qu’auparavant ... [more ▼]

La nouvelle loi belge du 13 mai 1999 permet désormais aux communes de réglementer une série de comportements en en assurant le respect par le recours à des sanctions administratives, alors qu’auparavant ces sanctions ne pouvaient être que pénales; la loi nouvelle offre aussi aux communes des pouvoirs de police administrative plus étendus; cette loi donne le ton d’une dépénalisation dans les communes au profit d’un droit administrativo-pénal [less ▲]

Detailed reference viewed: 138 (13 ULg)
Peer Reviewed
See detailNote de lecture - 385. Un vers de Cassius de Parme (CRF tg. fr. inc. 4 Ribbeck)
Rochette, Bruno ULg

in Latomus : Revue d'Etudes Latines (2001), 60(2, APR-JUN), 464-465

Detailed reference viewed: 22 (2 ULg)
Peer Reviewed
See detailQualité des soins et qualité de vie des enfants atteients de pathologies anorectales et de leurs familles
Noirhomme-Renard, Florence ULg

in Bulletin d'Education du Patient à sa Maladie (2001)

Detailed reference viewed: 12 (4 ULg)
Full Text
Peer Reviewed
See detailFacial mimicry and emotional contagion to dynamic emotional facial expression and their influence on decoding accuracy
Hess, U; Blairy, Sylvie ULg

in International Journal of Psychophysiology (2001), 40

Detailed reference viewed: 49 (1 ULg)
Full Text
Peer Reviewed
See detailSolar Photocatalytic Destruction of p-Nitrophenol: A Pedagogical Use of Lab Wastes
Herrera-Melián, J. A.; Doña-Rodríguez, J. M.; Tello Rendón, E. et al

in Journal of Chemical Education (2001), 78(6), 775-777

In this article we propose the destruction of p-nitrophenol wastes obtained in a previous lab experiment, to generate a new lab experiment. The recommended destruction technique is solar TiO2 ... [more ▼]

In this article we propose the destruction of p-nitrophenol wastes obtained in a previous lab experiment, to generate a new lab experiment. The recommended destruction technique is solar TiO2-photocatalysis. When the effects of TiO2 and sunlight are tested separately, a slight decrease of p-nitrophenol is observed; but when TiO2 and sunlight are employed together p-nitrophenol disappears in 1 or 2 h. These experiments do not require sophisticated equipment or special lab training for the students. Groups of students tested different experimental conditions, such as the effect of different light intensities and sources (800-W UV-lamp, sunlight on sunny days, and sunlight on a cloudy day) or the addition of H2O2. p-Nitrophenol is degraded under the three light sources but at different rates. The addition of H2O2 to the TiO2-plus-sunlight system enhances p-nitrophenol degradation kinetics when compared with the TiO2 plus sunlight and H2O2 plus sunlight combinations. [less ▲]

Detailed reference viewed: 48 (2 ULg)
Peer Reviewed
See detailReply to Letter to the Editor
PITCHOT, William ULg; ANSSEAU, Marc ULg

in Psychoneuroendocrinology (2001)

Detailed reference viewed: 6 (3 ULg)
Full Text
Peer Reviewed
See detailAn algorithm and a method to search bifurcation points in non-linear problems
Chambon, René; Crochepeyre, Stéphane; Charlier, Robert ULg

in International Journal for Numerical Methods in Engineering (2001), 51(3), 315-332

This paper is devoted to a numerical method able to help the determination of the bifurcation threshold in non-linear time-independent continuum mechanic problems. First, some theoretical results about ... [more ▼]

This paper is devoted to a numerical method able to help the determination of the bifurcation threshold in non-linear time-independent continuum mechanic problems. First, some theoretical results about uniqueness are recalled. In the framework of the large-strain assumption, the differences between the classical finite-step problem and the rate problem are presented. An iterative algorithm able to solve the rate problem is given. Using different initializations, it is seen in some numerical experiments that it is possible with this algorithm to get different solutions when the underlying mathematical problem solved does not enjoy a uniqueness property. The constitutive equations used have been chosen to be simple enough to deduce some theoretical knowledge about the corresponding uniqueness problems. Finally, a method is given which is able in some case to give an upper bound of the bifurcation threshold. Copyright (C) 2001 John Wiley & Sons, Ltd. [less ▲]

Detailed reference viewed: 173 (5 ULg)
Full Text
Peer Reviewed
See detailDissemination of Catabolic Plasmids among Desiccation-Tolerant Bacteria in Soil Microcosms
Weekers, Frederic; Rodriguez, Christian; Jacques, Philippe ULg et al

in Applied Biochemistry and Biotechnology (2001), 91-93(Spring), 219-32

The dissemination of catabolic plasmids was compared to bioaugmentation by strain inoculation in microcosm experiments. When Rhodococcus erythropolis strain T902, bearing a plasmid with trichloroethene ... [more ▼]

The dissemination of catabolic plasmids was compared to bioaugmentation by strain inoculation in microcosm experiments. When Rhodococcus erythropolis strain T902, bearing a plasmid with trichloroethene and isopropylbenzene degradation pathways, was used as the inoculum, no transconjugant was isolated but the strain remained in the soil. This plasmid had a narrow host range. Pseudomonas putida strain C8S3 was used as the inoculum in a second approach. It bore a broad host range conjugative plasmid harboring a natural transposon, RP4::Tn4371, responsible for biphenyl and 4-chlorobiphenyl degradation pathways. The inoculating population slowly decreased from its original level (10(6) colony-forming units [CFU]/g of dry soil) to approx 3 x 10(2) CFU/g of dry soil after 3 wk. Transconjugant populations degrading biphenyl appeared in constant humidity soil (up to 2 x 10(3) CFU/g) and desiccating soil (up to 10(4) CFU/g). The feasibility of plasmid dissemination as a bioaugmentation technique was demonstrated in desiccating soils. The ecologic significance of desiccation in bioaugmentation was demonstrated: it upset the microbial ecology and the development of transconjugants. [less ▲]

Detailed reference viewed: 24 (1 ULg)
Full Text
Peer Reviewed
See detailRadiation therapy alone or combined surgery and radiation therapy in squamous-cell carcinoma of the penis?
Zouhair, A; COUCKE, Philippe ULg; Jeanneret, W et al

in European Journal of Cancer (2001), 37

Abstract To assess the prognostic factors and the outcome in patients with squamous-cell carcinoma of the penis, a retrospective review of 41 consecutive patients with non-metastatic invasive carcinoma of ... [more ▼]

Abstract To assess the prognostic factors and the outcome in patients with squamous-cell carcinoma of the penis, a retrospective review of 41 consecutive patients with non-metastatic invasive carcinoma of the penis, treated between 1962 and 1994, was performed. The median age was 59 years (range: 35±76 years). According to the International Union Against Cancer (UICC) 1997 classi®cation, there were 12 (29%) T1, 24 (59%) T2, 4 (10%) T3 and 1 TX (2%) tumours. The N-classi®cation was distributed as follows: 29 (71%) patients with N0, 8 (20%) with N1, 3 (7%) with N2 and 1 (2%) with N3. Forty-four per cent (n=18) of the patients underwent surgery: partial penectomy with (n=4) or without (n=12) lymph node dissection, or total penectomy with (n=1) or without (n=1) lymph node dissection. 23 patients were treated with radiation therapy alone, and all but 4 of the patients who were operated upon received postoperative radiation therapy (n=14). The median follow-up period was 70 months (range 20±331 months). In a median period of 12 months (range 5±139 months), 63% (n=26) of the patients relapsed (local in 18, locoregional in 2, regional in 3 and distant in 3). Local failure (stump in the operated patients, and the tumour bed in those treated with primary radiation therapy) was observed in 4 out of 16 (25%) patients treated with partial penectomy postoperative radiotherapy versus 14 out of 23 (61%) treated with primary radiotherapy (P=0.06). 15 (83%) out of 18 local failures were successfully salvaged with surgery. In all patients, 5- and 10-year survival rates were 57% (95% con®dence interval (CI), 41±73%) and 38% (95% CI, 21± 55%), respectively. The 5-year local and locoregional rates were 57% (95% CI, 41±73%) and 48% (95% CI, 32±64%), respectively. In patients treated with primary radiotherapy, 5- and 10-year probabilities of surviving with penis preservation were 36% (95% CI, 22±50%) and 18% (95% CI, 2±34%), respectively. In multivariate analyses, survival was signi®cantly in¯uenced by the N-classi®- cation, and surgery was the only independent factor predicting the locoregional control. We conclude that, in patients with squa- mous-cell carcinoma of the penis, local control is better in patients treated with surgery. However, there seems to be no di erence in terms of survival between patients treated by surgery and those treated by primary radiotherapy salvage surgery, with 39% having organ preservation. [less ▲]

Detailed reference viewed: 43 (1 ULg)
Full Text
See detailOpettajankoulutus Belgiassa
Renaville, François ULg

in Tempus (2001), (1), 18-19

Detailed reference viewed: 61 (24 ULg)
Full Text
Peer Reviewed
See detailInvestigation of defect levels in Mg-doped GaN Schottky structures by thermal admittance spectroscopy
Nguyen, Ngoc Duy ULg; Germain, Marianne; Schmeits, Marcel et al

in Physica Status Solidi B. Basic Research (2001), 228

Schottky structures based on Mg-doped GaN layers grown by metalorganic chemical vapor deposition (MOCVD) on sapphire substrate are studied by thermal admittance spectroscopy from 90 K to room temperature ... [more ▼]

Schottky structures based on Mg-doped GaN layers grown by metalorganic chemical vapor deposition (MOCVD) on sapphire substrate are studied by thermal admittance spectroscopy from 90 K to room temperature. Evidence of two impurity levels results from the analysis of the observed peaks in the conductance curves, whose positions and strengths are temperature dependent. The experimental results are analyzed within a detailed theoretical study of the steady-state and small-signal electrical characteristics of the structure. Numerical simulations are based on the solution of the basic semiconductor equations for the structure consisting of two Schottky diodes connected back-to-back by a conduction channel formed by the GaN layer. [less ▲]

Detailed reference viewed: 48 (10 ULg)
Full Text
Peer Reviewed
See detailOnychomycosis and Other Superficial Fungal Infections of the Foot in the Elderly: A Pan-European Survey
Pierard, Gérald ULg

in Dermatology : International Journal for Clinical & Investigative Dermatology (2001), 202(3), 220-4

BACKGROUND: The escalating ageing population in the western world has led to an increased incidence of superficial fungal infections. The most common infections include onychomycosis, tinea pedis and ... [more ▼]

BACKGROUND: The escalating ageing population in the western world has led to an increased incidence of superficial fungal infections. The most common infections include onychomycosis, tinea pedis and tinea cruris. With the increasing life expectancy, the prevalence of onychomycosis and other superficial fungal infections is likely to increase further without adequate prevention and treatment. Objective: To study the prevalence of foot mycoses in Europe. METHOD: The Achilles project represents a survey of 90,085 subjects from 16 European countries. RESULTS: Approximately half of the total screened population had evidence of fungal foot infection, with tinea pedis and onychomycosis affecting one quarter of these individuals. Advancing age showed an unfavourable effect on the prevalence of these infections. CONCLUSION: As the number of aged people in developed countries continues to increase, skin diseases will constitute a greater pharmaco-economic concern of worldwide healthcare. Better recognition by clinicians and patients of mycotic foot disease will help prevent direct morbidity and further complications. [less ▲]

Detailed reference viewed: 15 (0 ULg)
Full Text
See detailEvaluations internationales : Les enjeux du jour et de l'histoire
Baye, Ariane ULg

in Cahiers du Service de Pédagogie Expérimentale (SPE) (2001), (7-8), 11-23

Detailed reference viewed: 36 (8 ULg)
See detailUse of molecular tools to enhance antagonistics activity of yeasts against postharvest diseases of apples
Jijakli, Haissam ULg; De Clercq, Deborah; Cognet, Stéphane et al

in Phytopathology (2001), 91(6 (supplément)), 154

Detailed reference viewed: 13 (1 ULg)
Full Text
Peer Reviewed
See detailThe Influence of Fetal and Postnatal Growth on Heart Rate Variability in Young Infants
Massin, M. M.; Withofs, Nadia ULg; Maeyns, K. et al

in Cardiology (2001), 95(2), 80-3

Heart rate variability (HRV), a measure of cardiac autonomic control, was analyzed in infants to assess the hypothesis that early undernutrition may induce autonomic dysfunction that could play a role in ... [more ▼]

Heart rate variability (HRV), a measure of cardiac autonomic control, was analyzed in infants to assess the hypothesis that early undernutrition may induce autonomic dysfunction that could play a role in the programming of later cardiovascular disease. HRV data were collected during a night session in 546 healthy infants at 5-12 weeks of adjusted age, and statistical associations with fetal and postnatal growth indices were established. A significant positive correlation between birth weight, the ratio of neonatal weight to head circumference and postnatal weight gain, and HRV indices mostly influenced by sympathetic activity was demonstrated in 11- and 12-week-old infants. A slight correlation (p > 0.05) was also found in younger infants. These data suggest the influence of fetal and postnatal growth on the programming of the autonomic nervous system beyond the neonatal period. This influence may be one of the important mechanisms that link impaired growth in fetal and infant life to high blood pressure and other cardiovascular disease during childhood and adulthood (the Barker hypothesis). [less ▲]

Detailed reference viewed: 19 (1 ULg)
Peer Reviewed
See detailLa démocratie : utopie ou projet ? Balibar, Negri, Spinoza
Herla, Anne ULg

in Cahiers Internationaux de Symbolisme (2001), 98-99-100

Detailed reference viewed: 80 (0 ULg)
Full Text
Peer Reviewed
See detailContributions to early land plant research (XIV IBC).
Gerrienne, Philippe ULg; Berry, Christopher M.

in Review of Palaeobotany and Palynology (2001), 116

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailSurvival, gap formation and recovery dynamics in grassland ecosystems exposed to heat extremes: the role of species richness.
Van Peer, L; Nijs, I; Bogaert, Jan ULg et al

in Ecosystems (2001), 4(8), 797-806

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailEtude empirique des estimateurs des taux d'erreur en analyse discriminante
Piraux, François; Palm, Rodolphe ULg

in Revue de Statistique Appliquée (2001), XLIX(4), 71-85

Monte Carlo experiments are performed to compare ten parametric and six non parametric estimators of the three error rates (actual, expected and optimal error rate) in discriminant analysis. This ... [more ▼]

Monte Carlo experiments are performed to compare ten parametric and six non parametric estimators of the three error rates (actual, expected and optimal error rate) in discriminant analysis. This comparison is restricted to the context of two p-dimensional normal group conditional distributions with the same covariance matrix. The study shows that certain estimators are markedly superior and users should be warned against some estimators available in statistical softwares. [less ▲]

Detailed reference viewed: 58 (2 ULg)
Full Text
Peer Reviewed
See detailNouveaux éclaircissements sur la vie et l'œuvre d'Antoine Galland (1646-1715)
Bauden, Frédéric ULg

in Journal Asiatique (2001), 289

Detailed reference viewed: 54 (2 ULg)
Full Text
Peer Reviewed
See detailN N scattering phase shifts in a chiral constituent quark model
Bartz, Daniel ULg; Stancu, Floarea ULg

in Nuclear Physics A (2001), A688

We study the nucleon-nucleon interaction within a chiral constituent quark model which reproduces succesfully the baryon spectra. We calculate the $^3S_1$ and $^1S_0$ phase shifts by using the resonating ... [more ▼]

We study the nucleon-nucleon interaction within a chiral constituent quark model which reproduces succesfully the baryon spectra. We calculate the $^3S_1$ and $^1S_0$ phase shifts by using the resonating group method. They clearly indicate the presence of a strong repulsive interaction at short distance, due to the spin-flavour symmetry of the quark-quark interaction and of the quark interchange between the two interacting nucleons. A $\sigma$-meson exchange quark-quark interaction, providing a medium-range attraction, helps to get closer to the experimental phase shifts. [less ▲]

Detailed reference viewed: 15 (1 ULg)
Full Text
Peer Reviewed
See detailCushing's disease in childhood: presentation, investigation, treatment and long-term outcome.
Savage, M. O.; Lienhardt, A.; LEBRETHON, Marie-Christine ULg et al

in Hormone research (2001), 55 Suppl 1

Seventeen patients with Cushing's disease (CD) were treated from 1978 to 2000. There were 11 males and 6 females aged 6.8-18.8 years (mean age 13.0 +/- 5.9 years). Presenting features were: weight gain ... [more ▼]

Seventeen patients with Cushing's disease (CD) were treated from 1978 to 2000. There were 11 males and 6 females aged 6.8-18.8 years (mean age 13.0 +/- 5.9 years). Presenting features were: weight gain (100%); growth failure (71%); hirsutism (53%); striae (53%); hypertension (47%). Mean age of patients with striae was 15.2 +/- 2.3 years, without striae 10.3 +/- 3.3 years. Median height SDS was -1.81 (range -0.28 to -4.17), 53% having height SDS < -1.8. The height velocity in 6 subjects was subnormal (0.9-3.8 cm/year). Median BMI SDS was 2.29 (range 1.72-5.06). Cushing's disease was confirmed by detectable serum ACTH, median 28 ng/l (range 12-99, NR <10-50) (n = 15); loss of cortisol circadian rhythm values at midnight ranging from 216 to 1,080 nmol/l (NR <50) (n = 15); lack of cortisol suppression (NV < 50 nmol/l) during low-dose dexamethasone suppression test (LDDST) (0.5 mg 6-hourly x 8) (n = 14); and >50% suppression of cortisol compared with the basal value during high-dose dexamethasone suppression test (HDDST) (2 mg 6-hourly x 8) (n = 14). A CRH test (1 microg/kg i.v.) showed an increase of cortisol from 12 to 217% (median 73.5%) (n = 16). Pituitary imaging (CT/MRI) showed an image consistent with microadenoma in 6/17 patients, but there was concordance between pituitary imaging and surgical findings in 1/11 patients (9%). Inferior petrosal sinus sampling (IPSS) for ACTH after CRH was performed in 11 subjects (age 10.7-18.8 years). Central to peripheral ACTH ratios were >2 (2.5-157.2) in 10/11 patients. The inter-petrosal sinus ACTH gradient was >1.4 in 10 patients (2.1-20.8), indicating lateralization of ACTH secretion. In 10 patients (91%), the side of the tumour on IPSS was predictive of findings at surgery. Therapy consisted of transsphenoidal microadenomectomy (TSS) in 16 patients and bilateral adrenalectomy (1978) in 1. Following TSS alone, 7 patients were cured (cortisol <50 nmol/l) and 2 were in remission (cortisol <300 nmol/l), i.e. 56%. Seven had persisting hypercortisolaemia and underwent pituitary irradiation (4,500 cGy). Therapeutic outcome for a median of 8 years (0.5-24 years) resulted in cure of CD in 14/17 patients (82%) and remission in 1. Linear growth after TSS +/- pituitary irradiation in 10 subjects showed no short-term catch-up growth, with peak growth hormone (GH) 0.5-20.9 mU/l to insulin tolerance test (ITT)/glucagon. Eight patients were treated with human growth hormone (hGH) (14 U/m(2)/week) combined in 3 with GnRH analogue. The mean final (n = 6) or latest (n = 4) height SDS was -1.36. The difference between final/latest height SDS and target height SDS was 0.93 +/- 1.13, i.e. less (p = 0.005) than the difference between height SDS and target height SDS at presentation, i.e. 1.72 +/- 1.26, indicating long-term catch-up growth. [less ▲]

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detailDendritic cells induce the death of human papillomavirus-transformed keratinocytes
Hubert, Pascale ULg; Giannini, Sandra ULg; Vanderplasschen, Alain ULg et al

in FASEB Journal (2001), 15(13), 2521-2523

Detailed reference viewed: 36 (12 ULg)
Full Text
Peer Reviewed
See detailApport de la tomographie par émission de positons pour la détection des tumeurs primitives lors de la découverte de métastases
Albérini, Jean-Louis; Belhocine, Tarik; Daenen, Frédéric ULg et al

in Bulletin du Cancer (2001), 88(5), 518-519

Detailed reference viewed: 17 (2 ULg)
Full Text
See detailOn the influence of aluminium content on the stability of retained austenite in multiphase TRIP-assisted steels
Mertens, Anne ULg; Jacques, Pascal J.; Lazarova, Roumiana et al

in Journal de Physique IV (2001), 11

Detailed reference viewed: 39 (2 ULg)
Peer Reviewed
See detailSecret professionnel, confidentialité et juriste d'entreprise : la nouvelle donne
Thirion, Nicolas ULg; Benoit-Moury, Anne

in Journal des Tribunaux (2001)

Detailed reference viewed: 82 (3 ULg)
Full Text
Peer Reviewed
See detailNews on antifungal drugs registered in Belgium for the treatment of dermatophytosis in domestic carnivores.
Hamoir, J.; Goret, M.; Mignon, Bernard ULg et al

in Annales de Médecine Vétérinaire (2001), 145

This note gives a progress report on the various molecules registered in Belgium which can be used for the treatment of dermatophytosis in domestic carnivores. Its purpose is not to develop the ... [more ▼]

This note gives a progress report on the various molecules registered in Belgium which can be used for the treatment of dermatophytosis in domestic carnivores. Its purpose is not to develop the therapeutic protocols used in this type of diseases but rather to describe these compounds according to their pharmacological and toxicological characteristics as well as to define their status in the current legal framework. [less ▲]

Detailed reference viewed: 48 (2 ULg)
Full Text
Peer Reviewed
See detailLa recherche de l'environnement pertinent, contribution à une géographie du sensible
Schmitz, Serge ULg

in Espace Géographique (L') (2001), 30(4), 321-332

Which factors heighten sensitivity to environmental changes? The answer to this question is of interest to everyone who acts on the environment. However, methods and concepts still need to be explored ... [more ▼]

Which factors heighten sensitivity to environmental changes? The answer to this question is of interest to everyone who acts on the environment. However, methods and concepts still need to be explored before a geography of sensibility could respond to this deman. This paper presens the methodological contributions and results of an exploratory study of the sensibilities of 65 residents of a Belgian rural municipality. Factors related to the environmental change, to the individual and to the relantionship between the individual and place are analysed. [less ▲]

Detailed reference viewed: 83 (26 ULg)
Full Text
See detailMons/Maisières : le site de plein air de Maisières-Canal
Miller, Rebecca ULg; Otte, Marcel ULg; Haesaerts, Paul

in Chronique de l'Archéologie Wallonne (2001), 9

Detailed reference viewed: 25 (2 ULg)
Full Text
See detailCommentaire
Richelle, Marc ULg

in Intellectica (2001), 32

Detailed reference viewed: 20 (2 ULg)
Full Text
See detailExperimental Hafting Traces. Identification and Characteristics
Rots, Veerle ULg; Pirnay, Louis; Pirson, Philippe et al

in Notae Praehistoricae (2001), 21

Detailed reference viewed: 18 (1 ULg)
See detailLes volets peints de la prédelle du retable de Saint-Denis à Liège premiers résultats d'un examen technologique
Allart, Dominique ULg; Oger, Cécile

in Bulletin de la Société Royale du Vieux Liège (2001), 295, XIV(8), 225-237

Detailed reference viewed: 144 (29 ULg)
Full Text
Peer Reviewed
See detailDiagnostic et suivi d'une large fistule porto-cave intrahepatique chez un nouveau-ne.
NCHIMI LONGANG, Alain ULg; Khamis, J.; Langhendries, J. P. et al

in Journal de Radiologie (2001), 82(11), 1642-4

Portocaval fistulas are rare and only exceptionally discovered in newborns. We report the case of a large portocaval fistula associated with portal hypoperfusion detected at Doppler US imaging in an ... [more ▼]

Portocaval fistulas are rare and only exceptionally discovered in newborns. We report the case of a large portocaval fistula associated with portal hypoperfusion detected at Doppler US imaging in an otherwise asymptomatic 5 week old infant. The patient remained asymptomatic over the following two years. At that time, preoperative angiogram showed a normal portal venous system and the fistula was surgically closed. Postoperative US showed a normal and patent portal system, without evidence of portal hypertension. [less ▲]

Detailed reference viewed: 27 (2 ULg)
Full Text
Peer Reviewed
See detailBiogeography and ecology of paedomorphosis in Triturus alpestris (Amphibia, Caudata)
Denoël, Mathieu ULg; Duguet, R.; Džukić, Georg et al

in Journal of Biogeography (2001), 28(10), 1271-1280

Aim Paedomorphosis is an evolutionary change in which larval structures are retained in adult animals. In newts and salamanders, this heterochronic process is widely represented and concerns the retention ... [more ▼]

Aim Paedomorphosis is an evolutionary change in which larval structures are retained in adult animals. In newts and salamanders, this heterochronic process is widely represented and concerns the retention of gill slits. We want to find out whether ecological and geographical determinants may be associated with paedomorphosis in the Alpine newt Triturus alpestris. Location Europe. Methods Determination of the main characteristics of all known aquatic sites containing paedomorphic Alpine newt individuals. Results Although metamorphs are common in Europe, paedomorphs are only found at the southern margin of the geographical range of the species: mainly in Italy and in the Balkans. They were recorded in eighty-seven aquatic sites. No single trend was outlined for the analysed ecological parameters of the aquatic and terrestrial habitats (e.g. altitude, maximum water depth, drying and presence of forest). Main conclusions Contrary to the first models of paedomorphosis, the main traits of aquatic and terrestrial habitat do not explain the occurrence of paedomorphs in natural populations. Although they were found in favourable aquatic habitats surrounded by hostile terrestrial landscapes, they also exist in temporary waters located at proximity of appropriate terrestrial environments. These results support models predicting paedomorphosis in varied environments, but require complementary investigations on the costs and benefits of the alternative ontogenetic pathways. On the other hand, the southern limitation of the heterochronic phenomenon suggests a genetic basis for paedomorphosis in the studied species. [less ▲]

Detailed reference viewed: 222 (24 ULg)
Full Text
Peer Reviewed
See detailFlow interruption effects on intake rate and rill erosion in two soils
Sirjacobs, Damien ULg; Shainberg, Itzhak; Rapp, Ido et al

in Soil Science Society of America Journal (2001), 65

Efficiency of surface irrigation is often low because of poor infiltration uniformity, resulting from relatively long periods of infiltration at the upstream end and short periods of infiltration at the ... [more ▼]

Efficiency of surface irrigation is often low because of poor infiltration uniformity, resulting from relatively long periods of infiltration at the upstream end and short periods of infiltration at the downstream end of the field. Surge irrigation, the intermittent supply of water to furrows, generally reduces soil intake rate (IR) and improves moisture uniformity over the entire field. However, IR reduction varies from one irrigation scheme to another, depends on soil and water properties, and is difficult to predict. A laboratory study using miniflumes was designed to investigate the effect of interrupted flow on IR and soil loss from short rills. Two soils differing in their textures, a silt loam (Calcic Haploxeralf) derived from loess and a clay soil (Typic Haploxerert), were studied. Intake rate in the clay soil was greater than that in the silt loam. Therefore, different inflow rates were applied to the two soils to achieve similar runoff flow rates from the two soils. Cumulative infiltration decreased from 646 mL in continuous flow to 539 mL in interrupted flow for the silt loam and from 1142 to 1068 mL in the clay soil. Interrupted flow also reduced cumulative soil loss by 84% in the clay soil but had only a small effect on soil loss from the silt loam. However, when flow rate was increased from 80 to 320 mL min−1, interrupted flow reduced soil loss in the silt loam as much as in the clay soil. Consolidation of the soil surface and formation of cohesive forces between soil particles of the silt loam with unstable structure during flow interruption was suggested as the explanation for the effect of flow interruption on intake rate and soil detachment. These results need to be verified in field experiments. [less ▲]

Detailed reference viewed: 32 (6 ULg)
Full Text
Peer Reviewed
See detailRisedronate Increases Bone Mineral Density and Reduces the Vertebral Fracture Incidence in Postmenopausal Women
Reginster, Jean-Yves ULg

in Clinical and Experimental Rheumatology (2001), 19(1), 121-2

Detailed reference viewed: 18 (1 ULg)
Full Text
Peer Reviewed
See detailInfluence of temperature during cardiopulmonary bypass on leukocyte activation, cytokine balance, and post-operative organ damage
Qing, M.; Vazquez-Jimenez, J. F.; Klosterhalfen, B. et al

in Shock (Augusta, Ga.) (2001), 15(5), 372-7

This study examined the hypothesis that core temperature (T(o)) during cardiopulmonary bypass (CPB) influences the perioperative systemic inflammatory response and post-operative organ damage. Twenty-four ... [more ▼]

This study examined the hypothesis that core temperature (T(o)) during cardiopulmonary bypass (CPB) influences the perioperative systemic inflammatory response and post-operative organ damage. Twenty-four pigs were assigned to a T(o) regimen during CPB: normothermia (T(o) 37 degrees C; n = 8), moderate hypothermia (T(o) 28 degrees C; n = 8), or deep hypothermia (T(o) 20 degrees C; n = 8). Perioperative leukocyte activation, endotoxin release, and production of tumor necrosis factor-alpha (TNFalpha) and interleukin-10 (IL10) were examined with regard to post-operative organ damage, which was scored at histological examination of tissue probes of heart, lungs, liver, kidney, and ileum, taken 6 h after CPB. Total blood leukocyte count and TNFalpha plasma levels during CPB were significantly lower and IL10 levels were significantly higher in the moderate hypothermic group than in both other groups. Elastase activity, leukotriene B4-, and endotoxin levels were not affected by T(o) regimen. Moderate hypothermia was associated with the lowest histological organ damage score and normothermia with the highest. In all animals organ damage score for heart, lungs, and kidneys correlated significantly with TNFalpha levels at the end of CPB. Our data demonstrate a clear relationship between TNFalpha production during cardiac operations and post-operative multiple-organ damage. Moderate hypothermia, by stimulating IL10 synthesis and suppressing TNFalpha production during CPB, might provide organ protection. [less ▲]

Detailed reference viewed: 22 (0 ULg)
Full Text
Peer Reviewed
See detailThe Developments of Cold-rolled TRIP-assisted Multiphase Steels. Al-alloyed TRIP-assisted Multiphase Steels
Jacques, Pascal J.; Girault, Etienne; Mertens, Anne ULg et al

in ISIJ International (2001), 41(9), 1068-1074

The influence of heat-treating conditions on the retention of carbon-enriched austenite of TRIP-assisted multiphase steel grades containing different amounts of silicon and/or aluminium is investigated ... [more ▼]

The influence of heat-treating conditions on the retention of carbon-enriched austenite of TRIP-assisted multiphase steel grades containing different amounts of silicon and/or aluminium is investigated. The ensuing mechanical properties resulting from the TRIP effect are also scrutinised. The bainite transformation kinetics was followed by dilatometry whereas a detailed characterisation of the microstructures led to the construction off transformation maps giving the volume fractions of the different phases and the carbon content of the austenite. The role of silicon and aluminium additions (i)on the retention of austenite by partial bainite transformation and (ii) on the mechanical properties is enlightened. A strong influence of the solid-solution strengthening effect of silicon is highlighted. Aluminium seems to be an effective alloying element for the retention of austenite in TRIP-aided steels even if lower strength levels can be attained. A mixed Al-Si TRIP-aided steel seems to be a very good compromise between the processing needs, the required mechanical properties and the industrial constraints. [less ▲]

Detailed reference viewed: 76 (1 ULg)