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See detailEffects of different levels of energy allowances and of hibernation on growth in hatchling Testudo hermanni boettgeri (Mojsisovic, 1889)
Diez, Marianne ULg; Vanstrazeele, Boris; Justet, Delphine et al

in Clauss, M.; Fidgett, A.; Hatt, J. M. (Eds.) et al Zoo Animal Nutrition IV (2009)

Cet article présente des données de croissance de Testudo nouveaux nés dont les apports alimentaires et l'hibernation ont été contrôlés.

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See detailSécrétion sudorale et sébacée
PIERARD, Gérald ULg; QUATRESOOZ, Pascale ULg; PIERARD-FRANCHIMONT, Claudine ULg

in Expertise médicale continue (2009)

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See detailEffets de l'inoculation mycorhizienne du substrat sur la croissance et la résistance au stress hydrique de cinq espèces fixatrices de dunes : Acacia raddiana Savi ; Acacia nilotica (L.) Willd. Ex Del. var. adansonii ; Acacia senegal (L.) Willd ; Prosopis chilensis Stunz. et Bauhinia rufescens Lam..
Laminou Manzo, Ousmane; Ibrahim, D.; Campanella, Bruno ULg et al

in Geo-Eco-Trop (2009), 33

Effects of the addition of an indigenous mycorrhizal complex, coming from soils of Gouré and of Glomus intraradices in a non sterile culture substrate were assessed on five woody species, among which 3 ... [more ▼]

Effects of the addition of an indigenous mycorrhizal complex, coming from soils of Gouré and of Glomus intraradices in a non sterile culture substrate were assessed on five woody species, among which 3 acacias (A. nilotica, A. raddiana, A. senegal), Bauhinia rufescens and Prosopis chilensis, in a tree nursery and on a sand dune of Gouré. In the nursery, species underwent a water stress by interrupting the watering during six days. Foliar hydration has been determined in order to evaluate the respective effects of the mycorrhizal inoculation for water loss limitation. Mycorrhizal root colonization has been determined as well as plant height and total biomass. In a field experiment, inoculated and non inoculated species have been planted on a mechanically prefixed sand dune portion in order to evaluate the effects of mycorrhizal inoculations on growth in the field. Results in nursery showed that (i) the non sterile soil would contain some endogenous AMF (arbuscular mycorrhizal fungi) as infectious as those in soils with mycorrhizal additions; (ii) addition of Glomus intraradices would be efficient to stimulate total biomass and (iii) natural mycorhization would be as efficient as both mycorrhizal addition for growth stimulation and water loss limitation by transpiration. Results on site confirm the comparable effectiveness of the natural mycorhization and mycorrhizal additions. Although the addition of G. intraradices appears to be slightly superior by some aspects on some species, the observed effects do not justify preferring it, when compared to indigenous composite inoculum or to natural mycorhization in this zone. [less ▲]

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See detailPolitiques éducatives et approche par les capacités
Verhoeven, Marie; Dupriez, Vincent; Orianne, Jean-François ULg

in Ethique publique (2009), 11

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See detailLe Falstaff de Shakespeare
D'Anna, Vinciane; Delville, Michel ULg

Article for general public (2009)

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See detailThe story of a tragedy. How people in Haut-Katanga interpret the post-colonial history of Congo
Rubbers, Benjamin ULg

in Journal of Modern African Studies (2009), 42(2), 267-289

Cet article analyse les cadres narratifs auxquels les habitants du Haut-Katanga recourent pour rendre compte de l'histoire post-coloniale du Congo.

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See detailDeutscher Einfluss und syntaktischer Wandel im Schwedischen
Zeevaert, Ludger ULg

in Wollin, Lars; Neuendorff, Dagmar; Szurawitzki, Michael (Eds.) Deutsch im Norden : Akten der nordisch-germanistischen Tagung zu Åbo/Turku, Finnland, 18.–19. Mai 2007 (2009)

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See detailVariations in stratigraphic and reservoir properties adjacent to the Mid-Paleocene sequence boundary, Campo section, Pyrenees, Spain
Da Silva, Anne-Christine ULg; Loisy, Corinne; Cerepi, Adrian et al

in Sedimentary Geology (2009), 219

The Paleocene of the Campo section, Spain has different sedimentological characteristics above and below the Mid-Paleocene Unconformity. Beneath the unconformity sediments are dominated by evaporitic ... [more ▼]

The Paleocene of the Campo section, Spain has different sedimentological characteristics above and below the Mid-Paleocene Unconformity. Beneath the unconformity sediments are dominated by evaporitic carbonates and collapse breccias. Above it they are characterized by continental detrital beds alternating with paleosols. Different subaerial features are observed and correspond to different porosity values, pore–throat sizes and micrite morphologies. Unexposed or intertidal facies have low porosity, low throat–pore size (mesoporosity) and well preserved rhombic crystals. Intermediate exposed facies (paleosols) possess medium porosity, medium pore–throat size (microporosity) and mainly micro-rhombic crystals. Finally, the facies corresponding to high exposure intensity and to evaporitic original facies presents high porosity, permeability, large pore–throat size and rounded micritic crystals. These observations show that the emersion phase caused important dissolution, especially when associated with an easily dissolved original lithofacies. [less ▲]

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See detailLes psychoses delirantes chroniques.
Desseilles, Martin ULg; Massart, Nicolas ULg

in Revue Médicale de Liège (2009), 64(9), 464-7

The current Anglo-Saxon trend is to consider that schizophrenia includes all psychoses. However, far from being a uniform set, there is a lot of different clinical presentations of patients with psychosis ... [more ▼]

The current Anglo-Saxon trend is to consider that schizophrenia includes all psychoses. However, far from being a uniform set, there is a lot of different clinical presentations of patients with psychosis. Chronic delusional psychosis, as a paradigm, show that subtyping psychosis on a clinical basis is useful for therapeutic and prognosis purposes. [less ▲]

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See detailChoix optimisé des plans et séquences utilisés pour l’examen par résonance magnétique du pied équin
Bolen, Géraldine ULg; Haye, Dimitri; Maquet, Nathalie et al

in Annales de Médecine Vétérinaire (2009), 153

The purpose of this work was to establish one or several short protocols for magnetic resonance imaging of the equine cadaver foot, using the most appropriated sequences in a limited number of planes ... [more ▼]

The purpose of this work was to establish one or several short protocols for magnetic resonance imaging of the equine cadaver foot, using the most appropriated sequences in a limited number of planes, allowing the assessment of the anatomical structures. Three feet were scanned with most of the sequences used for evaluation of the osteo-articular system in seven different ection planes (1 sagittal, 3 dorsal and 3 transverse planes). The sequences and the planes in which the anatomical structures were best assessed were selected by scoring the visualization of the anatomical structures. Three short protocols are proposed. The first protocol uses spin echo sequences, one fat suppressed sequence and one sequence to evaluate the cartilage. The second adds gradient echo sequences to show the sites of haemorrhage and the articular cartilage. The third protocol adds special section planes, the first perpendicular to the distal insertion of the deep digital flexor tendon and the second perpendicular to the collateral ligaments of the distal interphalangeal joint and adds another sequence combining cartilage visualization and fat suppression. [less ▲]

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See detailPutative DNA G-quadruplex formation within the promoters of Plasmodium falciparum var genes
Smargiasso, Nicolas ULg; Gabelica, Valérie ULg; Damblon, Christian ULg et al

in BMC Genomics (2009), 10

Background. Guanine-rich nucleic acid sequences are capable of folding into an intramolecular four-stranded structure called a G-quadruplex. When found in gene promoter regions, G-quadruplexes can ... [more ▼]

Background. Guanine-rich nucleic acid sequences are capable of folding into an intramolecular four-stranded structure called a G-quadruplex. When found in gene promoter regions, G-quadruplexes can downregulate gene expression, possibly by blocking the transcriptional machinery. Here we have used a genome-wide bioinformatic approach to identify Putative G-Quadruplex Sequences (PQS) in the Plasmodium falciparum genome, along with biophysical techniques to examine the physiological stability of P. falciparum PQS in vitro. Results. We identified 63 PQS in the non-telomeric regions of the P. falciparum clone 3D7. Interestingly, 16 of these PQS occurred in the upstream region of a subset of the P. falciparum var genes (group B var genes). The var gene family encodes PfEMP1, the parasite’s major variant antigen and adhesin expressed at the surface of infected erythrocytes, that plays a key role in malaria pathogenesis and immune evasion. The ability of the PQS found in the upstream regions of group B var genes (UpsB-Q) to form stable Gquadruplex structures in vitro was confirmed using 1H NMR, circular dichroism, UV spectroscopy, and thermal denaturation experiments. Moreover, the synthetic compound BOQ1 that shows a higher affinity for DNA forming quadruplex rather than duplex structures was found to bind with high affinity to the UpsB-Q. Conclusions. This is the first demonstration of non-telomeric PQS in the genome of P. falciparum that form stable G-quadruplexes under physiological conditions in vitro. These results allow the generation of a novel hypothesis that the G-quadruplex sequences in the upstream regions of var genes have the potential to play a role in the transcriptional control of this major virulence-associated multi-gene family. [less ▲]

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See detailCompte rendu de David AMBUEL, Image and Paradigm in Plato’s Sophist
Gavray, Marc-Antoine ULg

in Revue Philosophique de Louvain (2009)

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See detailA Simple Method to Determine Electrospray Response Factors of Noncovalent Complexes
Gabelica, Valérie ULg; Rosu, Frédéric ULg; De Pauw, Edwin ULg

in Analytical Chemistry (2009), 81(16), 6708-6715

The quantitative study of noncovalent complexes by electrospray mass spectrometry requires the determination of the relative response of each species. The method proposed here to determine the ... [more ▼]

The quantitative study of noncovalent complexes by electrospray mass spectrometry requires the determination of the relative response of each species. The method proposed here to determine the electrospray response factors is based on the use of (1) an internal standard and (2) the mass balance equation applied to one binding partner M, for which different complexes MxLy are detected in the electrospray mass spectra. A set of experiments providing various ratios between the complexes (e.g. different ligand concentrations in a titration experiment or different time points in a kinetics experiment) is used to generate a set of independent linear equations that can be solved using simple matrix algebra to find the response factors of each MxLy complex relative to that of the internal standard. The response factors can then be used to determine equilibrium dissociation constants or for the quantitative monitoring of reaction kinetics. The first is illustrated with a study of DNA-ligand complexes, where we show that neither minor groove binding nor intercalation dramatically affects the DNA response factor. The second is illustrated with a study of the association kinetics of the telomeric G-quadruplex dGGG(TTAGGG)3 with its complementary strand, where the response factors allow correcting for the relative response of the quadruplex and the long duplex and obtaining reproducible association rate constants independently of the source tuning potentials. [less ▲]

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See detailEpigraphique grecque. Bibliographie
Famerie, Etienne ULg

Learning material (2009)

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See detailStructural and electrochemical characterization of mesoporous thin films of Nb2xV2-2xO5 upon lithium intercalation
Krins, Natacha ULg; Lepot, Laurent; Cloots, Rudi ULg et al

in Solid State Ionics (2009), 180(11-13), 848-852

Nb2xV2 - 2xO5 (0 <= x <= 1) powders were prepared by a synthetic route based on the inorganic polymerization of alkoxy-choride precursors and characterized by a combination of X-ray diffraction V-51 and ... [more ▼]

Nb2xV2 - 2xO5 (0 <= x <= 1) powders were prepared by a synthetic route based on the inorganic polymerization of alkoxy-choride precursors and characterized by a combination of X-ray diffraction V-51 and Nb-93 NMR and Raman spectroscopy. Amorphous mesoporous thin films of similar compositions were successfully prepared by a modified Evaporation Induced Self Assembly method using polystyrene-b-polyethyleneoxide diblock copolymer as structuring agent. The electrochemical properties of the mesoporous films upon lithium insertion-deinsertion are investigated by cyclic voltammetry. This study highlights the advantages of such nanoarchitecture in terms of increased capacity to insert lithium. (C) 2009 Elsevier B.V. All rights reserved. [less ▲]

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See detailInteractions in YBa2Cu3O7-x aqueous suspensions
Dusoulier, Laurent; Cloots, Rudi ULg; Vertruyen, Bénédicte ULg et al

in Materials Chemistry & Physics (2009), 116(2-3), 368-375

Surface charging mechanism of YBa2Cu3O7-x (YBCO) particles in water has been investigated in order to understand their colloidal behaviour and stabilise concentrated suspensions. A broad study relating ... [more ▼]

Surface charging mechanism of YBa2Cu3O7-x (YBCO) particles in water has been investigated in order to understand their colloidal behaviour and stabilise concentrated suspensions. A broad study relating the suspension parameters (pH and zeta potential) vs. the conditions of the suspension performance (atmosphere and time) has been shown and discussed. The zeta potential values remain positive in all the pH range for the highest powder concentration studied (10 g l(-1)), evidencing a large influence of the solid content in the particle charge. The chemistry of YBa2Cu3O7-x in water has been studied through the chemical analysis of the supernatant by inductively coupled plasma (ICP), and the surface analysis of the particles by X-ray diffraction analysis (XRD) and X-ray photoelectron spectroscopy (XPS). The presence of BaCO3, CuO, and the hydrolysed Ba species, such as Ba(OH)(2) and Ba(OH)(+), at the particles surface has been evaluated as a function of the powder concentration. Based on these analyses, the dependence of the colloidal behaviour of YBCO on the presence of Ba soluble species has been determined. A stabilisation mechanism for YBCO particles in aqueous suspension focus on the powders deleterious minimization was proposed. (C) 2009 Elsevier B.V. All rights reserved. [less ▲]

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See detailLes doyens de l'immigration - Le troisième âge immigré en Belgique
Perrin, Nathalie ULg

Book published by Academia-Bruylant (2009)

" On a fait appel à des bras et ce sont des êtres humains qui sont venus ", et pour continuer la sentence de l'écrivain suisse Max Frisch qui indiquait que l'immigration était et est, avant tout, une ... [more ▼]

" On a fait appel à des bras et ce sont des êtres humains qui sont venus ", et pour continuer la sentence de l'écrivain suisse Max Frisch qui indiquait que l'immigration était et est, avant tout, une problématique humaine, on pourrait dire que ces êtres humains sont restés et ont vieilli. Dans les années 1970, certains pensaient qu'une fois le pactole amassé et le travail manquant, les immigrés rentreraient chez eux. Ils sont restés. Et puis, on les a oubliés, pour ne parler que de leurs enfants, ces fameuses deuxième, troisième, quatrième générations. Voici l'une des premières recherches menées sur la question en Belgique, résultat d'une étude menée en 2004 en Wallonie et à Bruxelles, revue et enrichie en décembre 2007. L'hypothèse de départ est que les immigrés âgés connaissent les mêmes difficultés et problèmes que les autres personnes âgées, en particulier celles appartenant à un milieu social comparable. Ce qui les en différencie, cependant, c'est l'ignorance dont ils font l'objet de la part des institutions et des autorités publiques. Cette étude propose ainsi une revue de la littérature existante sur le sujet en Belgique, une série de données et d'analyses statistiques, les principales caractéristiques de cette population établie à partir d'entretiens et propose des pistes de réflexion pour une meilleure prise en compte du vieillissement des personnes immigrées de Belgique. [less ▲]

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