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See detailLa jonction thalweg-cours d'eau : pour une gestion dès l'amont
Dautrebande, Sylvia; Degre, Aurore ULg; Dagnelies, Joelle

Poster (2007)

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See detailEffect of cyclodextrin derivatives on bronchial epithelial cell layer permeability
Belhadj-Salem, Leila; Bosquillon, Cynthia; Delattre, Luc ULg et al

Poster (2007)

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See detailSugar beet leaves as source of lyase in bioprocess producing green note aldehydes
Rabetafika, Holy-Nadia ULg; Gigot, Cédric ULg; Fauconnier, Marie-Laure ULg et al

Poster (2007)

Sugar beet leaves were used as source of lyase in a biocatalytic process for the production of C6-aldehydes. Their hydroperoxide lyase activity was revealed important. The optimum values of pH and ... [more ▼]

Sugar beet leaves were used as source of lyase in a biocatalytic process for the production of C6-aldehydes. Their hydroperoxide lyase activity was revealed important. The optimum values of pH and temperature for reactions were respectively 6.7 and 22 °C. A simple and fast process providing high molar conversion of hydroperoxides to aldehydes is proposed. The yield of the main product cis-3-hexenal reached 80% after only 2 min and was stabilised by acidifying the reaction medium to pH 2. [less ▲]

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See detailRole of Sox 10 in the development of the inner ear
Bodson, M; Breuskin, I; Thelen, Nicolas ULg et al

Poster (2007)

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See detailA TEM study of the reptilian nucleolus by means of cytochemical and immunocytological methods
Lamaye, Françoise; Thiry, Marc ULg

Poster (2007)

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See detailCaractérisation et quantification de la charge de fond transportée par un ruisseau ardennais
Houbrechts, Geoffrey ULg; Petit, François ULg

Poster (2007)

Durant la saison hydrologique 2006-2007, le transport solide par charriage a été étudié dans un affluent de la Lienne (la Chavanne). Ce ruisseau ardennais, a été équipé d’un limnigraphe et d’un piège à ... [more ▼]

Durant la saison hydrologique 2006-2007, le transport solide par charriage a été étudié dans un affluent de la Lienne (la Chavanne). Ce ruisseau ardennais, a été équipé d’un limnigraphe et d’un piège à sédiments. Ce piège consiste en deux fosses rectangulaires, perpendiculaires au sens d’écoulement, d’une capacité de piégeage de 2 m³. Les paramètres de mobilisation (puissances spécifiques, tensions de cisaillement) ont été déterminés pour des crues de différente importance et ont été mis en relation avec la taille des éléments piégés. L’analyse des caractéristiques sédimentologiques des galets piégés a permis de mettre en évidence l’influence de l’aplatissement sur la mise en mouvement des galets de différentes lithologies et d’affiner les valeurs du critère adimensionnel de Shields en condition naturelle. Par ailleurs, les galets piégés ont été comparés avec les scories présentes dans la charge de fond. Ces éléments, produits au XIVe siècle par un haut fourneau implanté 700 m en amont du site d’étude, constituent un indicateur de la compétence effective de ce cours d’eau sur une période de plusieurs siècles. La quantité de sédiments charriés a été mesurée par curage des fosses de manière systématique après chaque crue mobilisatrice. Dans cette rivière, le débit solide par charriage est seulement de 0,4 t.km-2.an-1, malgré la fréquence élevée du débit de mobilisation. Cette valeur est relativement faible vis-à-vis de ce qui a été mis en évidence sur d’autres cours d’eau ardennais plus importants (Houbrechts et al., 2006), où des valeurs 2,5 t.km-2.an-1 peuvent être atteintes. [less ▲]

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See detailMulti-dectector row computed tomography of the carpal joint in dogs
Cavrenne; Bolen, Géraldine ULg; DeBusscher et al

Poster (2007)

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See detailCarbon dioxide in European coastal waters
Borges, Alberto ULg; Schiettecatte, L.-S.; Abril, G. et al

Poster (2007)

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See detailThe role of CRP on neonatal hypoxic-ischemic encephalopathy
Kinugasa, Yukiko; Mimura, Kazuya; Katayama, Miho et al

Poster (2007)

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See detailThe tumor-associated RCAS1 protein:a contemporary view about pre-eclampsia?
Tskitishvili, Ekaterine ULg; Mimura, Kazuya; Kinugasa, Yukiko et al

Poster (2007)

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See detailSynthesis of highly dispersed Pd/SiO2 cogelled xerogel catalysts from various silylated ligands
Lambert, Stéphanie ULg; Tran, Kim Yên; Arrachart, Guilhem et al

Poster (2007)

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See detailPhotodynamic therapy for cutaneous carcinoma
NIKKELS, Arjen ULg; thirion, L.; QUATRESOOZ, Pascale ULg et al

Poster (2007)

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See detailDirecting the lipopeptide Mycosubtilin biosynthesis toward C17:0 branched isoform influences the expression of cspB and cspC in Bacillus subtilis
Guez, Jean-Sébastien; Drucbert, A.; Müller, C. et al

Poster (2007)

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See detailMetamorphosis rate of paedomorphs in a natural newt population
Denoël, Mathieu ULg; Lena, J. P.; Joly, Pierre

Poster (2007)

Facultative paedomorphis is a developmental process in which larvae opt for metamorphosis before maturity or reach sexual maturity while retaining larval traits (e.g., gills). Although metamorphosis is ... [more ▼]

Facultative paedomorphis is a developmental process in which larvae opt for metamorphosis before maturity or reach sexual maturity while retaining larval traits (e.g., gills). Although metamorphosis is not reversible, the paedomorphic state is not a dead end as branchiate adults are able to metamorphose. However, the extent of this process has never been quantified in the wild. Our aim was then to estimate switching rate by carrying out a 3-year monitoring survey of a population of Alpine newts (Triturus alpestris) inhabiting an alpine lake. The data were analysed using a multi-state capture-recapture model. While morph switching did occur in this population, it involved only 12% of the paedomorphs each year (i.e., 17% of recaptured individuals), suggesting that metamorphosis was not favoured in this population during the study period. This rate is lower than in laboratory experiments during which newts from the same population were placed in water drying conditions, but as shown previously paedomorphs can avoid metamorphosis in migrating to permanent water bodies when their pond dries out. These results are in agreement with other studies showing an advantage of a dimorphism in heterogeneous habitats. The ontogenetic pathway of wild Alpine newts is thus characterised by two forks in the developmental pathway. The first occurs during the larval stage, and the second occurs in paedomorphic adults. Such a two-level decision process may allow individuals to cope with environmental uncertainty. This may be particularly adaptive as aquatic conditions can deteriorate over time as shown by yearly changes in body condition of newts [less ▲]

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See detailEcological thresholds and estimates of breaking points in newt populations: a useful tool to categorise habitat use and apply conservation measures
Denoël, Mathieu ULg; Ficetola, Gentile

Poster (2007)

Ecological thresholds are defined as points at which a rapid change occurs from one ecological condition to another. Their determination in species–habitat relationships has important implications because ... [more ▼]

Ecological thresholds are defined as points at which a rapid change occurs from one ecological condition to another. Their determination in species–habitat relationships has important implications because they allow to understand ecological requirements of species and to provide efficient conservation measures. However, there is a lack of concordance across studies and this method was not yet applied to newts. In this study, we sampled 371 ponds to gather occurrence data on the palmate newt Triturus heveticus and the Alpine newt Triturus alpestris. We tested for the existence of significant thresholds for three variables: distance to forest, forest and crop covers. We found significant thresholds for both landscape configuration and composition, with relationships between distance to forest and occurrence of Triturus alpestris and T. helveticus, and forest and crop cover and T. helveticus. Both species require breeding ponds within a given distance from the forest, but T. helveticus is more dependent on forest availability than T. alpestris: its ecological threshold is located at lower distance from forest edge, and requires also higher values of forest cover. Crops have a negative influence on palmate newt distribution with a significant breaking point, but not for T. alpestris in the studied area. These results indicate that thresholds can be a useful concept from which tools may be developed. They are particularly pertinent to focus conservation effort for threatened species and their habitats as quantitative measures of the most required habitats for species can be obtained from statistically determined breaking points [less ▲]

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See detailThe Belgian guidelines for management of low back pain in occupational health
Mairiaux, Philippe ULg; Mazina, D. ULg

Poster (2007)

Aims As part of the promotion of a national strategy for the prevention and the management of acute and chronic low back pain (CLBP), the Belgian Health Care Knowledge Centre (KCE) funded a systematic ... [more ▼]

Aims As part of the promotion of a national strategy for the prevention and the management of acute and chronic low back pain (CLBP), the Belgian Health Care Knowledge Centre (KCE) funded a systematic review of the EBM literature concerning the management of LBP patients in the occupational health (OH) context. Taking account differences in regulations and practices within the health care system between EU countries1,2, this review aimed at issuing good practices recommendations applicable to the Belgian situation to prevent the transition from acute to chronic back pain and to avoid long duration absences from work. Methods The guidelines have been developed in three steps. First, an electronic search was performed for relevant guidelines and systematic reviews (SR) on the following databases: EMBASE, Medline, Cochrane Controlled Trials Register, NHS guidelines Finder, National Guidelines Clearing House, New Zealand Guidelines Group Search and Pedro database. The search strategy combined 3 groups of terms: low back pain, occupational medicine and the type of reference (practice guideline or SR). The identified guidelines were appraised using the AGREE method, while SR’s were appraised using the Cochrane Collaboration grid. In a second phase, the draft guidelines were submitted to a group of OH academics from the main Belgian universities. The revised version of the guidelines was then published in English in the KCE report 3. In a third step currently under way, the guidelines are adapted in a more practical format for facilitating their daily use by OH practitioners. This involves a working group of OH practitioners coming from 12 external prevention services and several large company OH services. The document will also be discussed with representatives of other health professionals (GP’s and medical advisors of the sickness funds). Results Scientific evidence from the 7 selected guidelines and from the 27 SR’s was organized according to the main missions of the occupational physician (OP) and medical adviser (MA). Which background information should be given to employers and employees when the OP is playing an adviser role? What evidence-based prevention policies (primary and secondary) should he/she promote in the enterprises? For the third mission of the OP, health surveillance of workers, the document considers three situations: periodic health surveillance, spontaneous examinations at the worker request, and return to work (RTW) examinations for workers absent for 28 days or more. The main conclusions are summarized in 4 tables under the format of key-points, each of those mentioning the quality of the evidence (using the Guyatt classification). Discussion and conclusions The key message for prevention of CLBP is the need for staying active and minimizing the time out of work. Evidence of high quality is in favor of a multidisciplinary approach using conservative treatments. One challenge is to avoid hospitalizations and especially surgery in CLBP patients. Those recommendations are relevant for all care settings, including the occupational environment. From a health care policy point of view, the project highlighted the major roles of the occupational physician and of the medical adviser and stressed the need to better define those roles if decision makers want to tackle the low back pain problem and the economic consequences of the related sick leave. References 1. Dutch Association of Occupational Medicine (NVAB). Management of low back workers by the occupational physician. Approved guidelines ; April 1999. 2. RCM-FOM. Occupational health guidelines for management of low back pain at work: Evidence Review and Recommendations. London, 2000. 3. Nielens H., Van Zundert J., Mairiaux P., Gailly J., Van Den Hecke N., Mazina D., Camberlin C., Bartholomeeussen S., De Gauquier K., Paulus D., Ramaekers D. Chronic Low Back Pain. Good Clinical Practice (GCP). Brussels: Belgian Health Care Knowledge Centre (KCE); 2006. KCE reports 48B (D/2006/10.273/64). [less ▲]

Detailed reference viewed: 39 (4 ULg)
See detailSox 10 is not necessary for auditory neurons survival
Breuskin, I; Bodson, M; Thelen, Nicolas ULg et al

Poster (2007)

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See detailVascular architecture of breast cancer xenographs over-expressing MT4-MMP
Chabottaux, V; Thiry, Marc ULg; Blacher, Silvia ULg et al

Poster (2007)

Detailed reference viewed: 4 (1 ULg)
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See detailSuccessful therapy of verrucous carcinoma by photodynamic therapy
NIKKELS, Arjen ULg; thirion, L.; QUATRESOOZ, Pascale ULg et al

Poster (2007)

Detailed reference viewed: 4 (0 ULg)
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See detailRelationship between human tumor-associated antigen RCAS1 and gestational diabetes mellitus
Tskitishvili, Ekaterine ULg; Komoto, Yoshiko; Kinugasa, Yukiko et al

Poster (2007)

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See detailSemi-separative isolation of Fn-type inulin from hydrolised globe artichoke inulin.
Ronkart, Sébastien; Blecker, Christophe ULg; Fourmanoir, Hélène et al

Poster (2007)

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See detailThe effect of hypothermia on neonatal stem cells
Kanagawa, Takeshi; Tomimatsu, Takuji; Mimura, Kazuya et al

Poster (2007)

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See detailProvenance of Belgian Merovingian garnets by PIXE on IPNAS Cyclotron
Mathis, François ULg; Vrielynck, Olivier; Laclavetine, Kilian et al

Poster (2007)

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See detailSpatial dynamics of rRNAs within the cell nucleus
Thiry, Marc ULg; Lamaye, Françoise; Thelen, Nicolas ULg et al

Poster (2007)

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See detailNumerical modelling of coupled mechanics and gas transfer
Gerard, Pierre ULg; Charlier, Robert ULg; Barnichon, Jean-Dominique et al

Poster (2007)

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See detailEnrichment of anhydrous milk fat in polyunsatured fatty acid residues from linseed and rapeseed oil through enzymatic interesterification
Aguedo, Mario ULg; Hanon, Emilien ULg; Danthine, Sabine ULg et al

Poster (2007)

The interesterification, or ester exchange, between two fats leads to the rearrangement of acyl moieties in both. The use of a sn-1,3-specific lipase confines the exchange of fatty acid residues to the sn ... [more ▼]

The interesterification, or ester exchange, between two fats leads to the rearrangement of acyl moieties in both. The use of a sn-1,3-specific lipase confines the exchange of fatty acid residues to the sn-1 and sn-3 positions of triacylglycerides (TAG), generating products with characteristics that cannot be obtained through a chemical process or a blending. Such reactions require mild conditions with no solvent needed and they yield no unhealthful trans fatty acids, justifying the stepped-up interest of enzymatic interesterification for the production of margarines and other food fats. The aim of this work was to use enzymatic interesterification to enrich anhydrous milk fat (AMF) with unsaturated fatty acid C18 residues from linseed oil (LO) and eventually from rapeseed oil (RO) through some binary blends and one ternary blend. For that, the 1,3-specific lipase from Thermomyces lanuginosa (Lipozyme TL IM) was used in solvent-free batch and micro-aqueous reactions and fat blends with different mass ratios were tested. The evolution of TAG profiles, of interesterification degre (ID) and of free fatty acids (FFA), was followed along the reactions. Determination of dropping points (DP) and solid fat contents (SFC) enabled a rheological characterization of the products. The end products were also characterized for their oxidative stability and their textural properties. [less ▲]

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See detailRandom Subwindows and Multiple Output Decision Trees for Generic Image Annotation
Dumont, Marie; Marée, Raphaël ULg; Geurts, Pierre ULg et al

Poster (2007)

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See detailSIZE DISTRIBUTION OF METALLIC POWDERS : A COMPARISON OF DIGITAL IMAGING AND LASER DIFFRACTION
Gregoire, Max; Michel, Frédéric ULg; Campana, Florent et al

Poster (2007)

Automated image analysis of particles under controlled orientation (SIA) is becoming a challenging technique for laser diffraction (LD) in the field of sizing metallic particles above 5 μm. Thanks to ... [more ▼]

Automated image analysis of particles under controlled orientation (SIA) is becoming a challenging technique for laser diffraction (LD) in the field of sizing metallic particles above 5 μm. Thanks to optimal particle dispersion and fully automated microscopic imaging, it is now possible to gather individual measurements on thousands of particles within a minute. The aim of this paper is to compare results obtained with both image analysis and laser diffraction from a selection of powders (figure 1) in the range between 5 μm and 250 μm. [less ▲]

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See detailControlled release of drugs from an original multi-component device
Nizet, dominique; Zalfen, Alina; Collard, Laurence ULg et al

Poster (2007)

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See detailAn unusual cell type of the auditory organ during neonatal development: the inner pillar cells
Thelen, Nicolas ULg; Breuskin, I; Malgrange, B et al

Poster (2007)

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See detailAlien invasive species and climate change: overview of research activities
Vanderhoeven, Sonia ULg; Saad, Layla ULg; Tiébré, Marie-Solange et al

Poster (2007)

Detailed reference viewed: 16 (1 ULg)
See detailSpring CO2 dynamics within sea ice: abiotical versus biological control.
Delille, Bruno ULg; Schoemann, Véronique; Becquevort, Sylvie et al

Poster (2007)

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See detailPlant-based production of human lysozyme mutants
Tocquin, Pierre ULg; Dumoulin, Mireille ULg; Dony, Nicolas ULg et al

Poster (2007)

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See detailThe XMM-LSS Survey : properties and two-point angular correlations of point-like sources
Garcet, O.; Gandhi, P.; Disseau, L. et al

Poster (2007)

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See detailThe Dusty Young Universe
Meisenheimer, K.; Dannerbauer, H.; Klaas, U. et al

Poster (2007)

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See detailRole of coactivators SRC-1 and CARM1 in estrogen receptor-alpha and beta-dependent cell proliferation in the dentate gyrus of adult female rats
Charlier, Thierry ULg; Lieblich, Stephanie E; Pawluski, Jodi L et al

Poster (2007)

Nuclear receptors such as the estrogen receptors (ER) require the presence of coactivator proteins, such as the steroid receptor coactivator (SRC-1) and coactivator-associated arginine methyltransferase ... [more ▼]

Nuclear receptors such as the estrogen receptors (ER) require the presence of coactivator proteins, such as the steroid receptor coactivator (SRC-1) and coactivator-associated arginine methyltransferase (CARM1) to enhance the transcription of target genes. Importantly, in vitro work suggests that ER􀀁 and ER􀀂 differ in the ability to recruit coactivators such as SRC-1. For example, SRC-1 has a strong affinity for ER􀀁 and a weaker affinity for ER􀀂. Interestingly, both ER􀀁 and ER􀀂 are individually involved in estradiol-enhanced cell proliferation in the dentate gyrus of adult female rats. In addition, previous work suggests a role for CARM1 in cell proliferation and for SRC-1 in cell differentiation, therefore the present study aimed to determine whether proliferating cells in the dentate gyrus of the hippocampus co-express the coactivators SRC-1 and CARM1. We also aimed to determine whether ER􀀁 and ER􀀂 agonists would result in altered expression of SRC-1 and CARM1 in new proliferating cells in the dentate gyrus. To investigate this, adult female rats were ovariectomized and treated with either the ER􀀁 agonist Propyl-pyrazole triol (PPT), the ER􀀂 agonist diarylpropionitrile (DPN), estradiol benzoate (EB), or vehicle (CTRL). Rats were then injected with BrdU (200 mg/kg) and sacrificed 24 hours later. Preliminary data suggests that DPN, PPT and EB increase cell proliferation in the dentate gyrus compared to the vehicle-injected group. Interestingly, the number of proliferating cell expressing SRC-1 is similar in all groups, suggesting that neither of the ER agonists nor EB treatment affects the co-expression of BrdU+ cells with SRC-1. However, additional measurements are currently being done to investigate whether CARM-1 is differentially expressed in proliferating cells in the hippocampus following selective ER agonist treatment. [less ▲]

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See detailIonoluminiscencia en minerales de interés gemológico
Calvo Del Castillo, Helena ULg; Ruvalcaba Sil, Jose Luis; Millán Chagoyén, Asunción et al

Poster (2007)

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See detailEffect of aggressive encounters on plasma progesterone, corticosterone and corticosteroid binding capacity
Charlier, Thierry ULg; Hammond, Geoffrey L; Soma, Kiran K

Poster (2007)

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See detailThe Aznalcóllar disaster: An in-depth PIXE study of the pirite mine spill of 1998
Calvo Del Castillo, Helena ULg; Ruvalcaba Sil, Jose Luis; Álvarez, M. A. et al

Poster (2007)

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See detailObservations of comet McNaught from La Silla
Snodgrass, C.; Jehin, Emmanuel ULg; Fitzsimmons, A. et al

Poster (2007)

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See detailVascular architecture of breast cancer xenographs over-expressing MT4-MMP
Chabottaux, V; Thiry, Marc ULg; Blacher, Silvia ULg et al

Poster (2007)

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See detailThe Dusty Young Universe: photometry and spectroscopy of quasars at z > 2
Meisenheimer, K.; Hutsemekers, Damien ULg; Tacconi, L. et al

Poster (2007)

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See detailCaractériser un profil inflammatoire grâce à l'utilisation du microdamier
Ramery, Eve ULg; Closset, Rodrigue; Bureau, Fabrice ULg et al

Poster (2007)

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See detailSound production by pectoral spines in Six Synodontis species (Mochokidae)
Fabri, Grégory; Mauguit, Quentin; Vandewalle, Pierre ULg et al

Poster (2007)

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See detailDendritic cells genetically engineered to express IL-10 induce long-lasting antigen-specific tolerance in experimental asthma
Henry, E.; Desmet, C. J.; Garzé, V. et al

Poster (2007)

Detailed reference viewed: 11 (1 ULg)