References of "2008"
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See detailUpper and uppermost Famennian miospore and conodont correlation in the Ardenne-Rhenisch area
Streel, Maurice ULg

in Subcommission on Devonian Stratigraphy Newsletter (2008), 23

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See detailAphid and plant volatiles induce oviposition in an aphidophagous hoverfly
Verheggen, François ULg; Arnaud, Ludovic; Bartram, Stefan et al

in Journal of Chemical Ecology (2008), 34(3), 301-307

Episyrphus balteatus DeGeer (Diptera, Syrphidae) is an abundant and efficient aphid-specific predator. We tested the electroantennographic (EAG) response of this syrphid fly to the common aphid alarm ... [more ▼]

Episyrphus balteatus DeGeer (Diptera, Syrphidae) is an abundant and efficient aphid-specific predator. We tested the electroantennographic (EAG) response of this syrphid fly to the common aphid alarm pheromone, (E)-beta-farnesene (E beta F), and to several plant volatiles, including terpenoids (mono- and sesquiterpenes) and green leaf volatiles (C6 and C9 alcohols and aldehydes). Monoterpenes evoked significant EAG responses, whereas sesquiterpenes were inactive, except for the aphid alarm pheromone (E beta F). The most pronounced antennal responses were elicited by six and nine carbon green leaf alcohols and aldehydes [i.e., (Z)-3-hexenol, (E)-2-hexenol, (E)-2-hexenal, and hexanal]. To investigate the behavioral activity of some of these EAG-active compounds, E. balteatus females were exposed to R-(+)-limonene (monoterpene), (Z)-3-hexenol (green leaf alcohol), and E beta F (sesquiterpene, common aphid alarm pheromone). A single E. balteatus gravid female was exposed for 10 min to an aphid-free Vicia faba plant that was co-located with a semiochemical dispenser. Without additional semiochemical, hoverfly females were not attracted to this plant, and no oviposition was observed. The monoterpene R-(+)-limonene did not affect the females' foraging behavior, whereas (Z)-3-hexenol and E beta F increased the time of flight and acceptance of the host plant. Moreover, these two chemicals induced oviposition on aphid-free plants, suggesting that selection of the oviposition site by predatory hoverflies relies on the perception of a volatile blend composed of prey pheromone and typical plant green leaf volatiles. [less ▲]

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See detailVideo-Initiation à la visite de traite -I et II
Theron, Léonard ULg; Hanzen, Christian ULg

Software (2008)

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See detailLes glioblastomes, un exemple de recherche translationnelle?
Kroonen, Jérôme ULg; Nguyen-Khac, Minh-Tuan ULg; Deprez, Manuel ULg et al

in Revue Médicale de Liège (2008), 63(5-6), 251-6

Among patients which develop glioblastoma multiform (GBM), recurrence is the rule despite continuous progress in surgery, radiotherapy and chemotherapy. In the adult, GBM is the most frequent and most ... [more ▼]

Among patients which develop glioblastoma multiform (GBM), recurrence is the rule despite continuous progress in surgery, radiotherapy and chemotherapy. In the adult, GBM is the most frequent and most aggressive tumour of the Central Nervous System. A better understanding of the mechanisms by which these tumours relapse could promote the use of preventive therapy and could increase patients' survival. GBM stem cells have been recently described and it was demonstrated that they are specifically implied in the experimental tumorigenesis. It is thus very attractive to speculate on a possible relationship between these GBM stem cells and the neural stem cells which are persisting in the neurogenic zones of the adult brain. In this review, we formulate and discuss the hypothesis by which, in a patient with GBM, malignant stem cells might be present in the neurogenic zones, away from the tumour mass. This hypothesis could explain the tumour relapse observed after the first treatments. [less ▲]

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See detailEfficacy and tolerability of intravenous ibandronate injections in postmenopausal osteoporosis: 2-year results from the DIVA study.
Eisman, John A; Civitelli, Roberto; Adami, Silvano et al

in Journal of Rheumatology (2008), 35(3), 488-97

OBJECTIVE: An effective and well tolerated intravenous (IV) bisphosphonate could provide a new treatment method for patients with osteoporosis. The Dosing IntraVenous Administration (DIVA) study was ... [more ▼]

OBJECTIVE: An effective and well tolerated intravenous (IV) bisphosphonate could provide a new treatment method for patients with osteoporosis. The Dosing IntraVenous Administration (DIVA) study was designed to identify the optimal ibandronate IV injection schedule for the treatment of postmenopausal osteoporosis by comparing the efficacy and tolerability of 2- and 3-monthly injections with the previously evaluated daily oral ibandronate regimen. We report the effects on lumbar spine and proximal femur bone mineral density (BMD) and bone resorption markers over 2 years. METHODS: This randomized, double-blind, double-dummy, noninferiority study recruited 1395 women (aged 55-80 yrs; > or = 5 yrs since menopause) with osteoporosis [mean lumbar spine (L2-L4) BMD T-score < -2.5 and > or = -5.0]. Patients received IV ibandronate (2 mg every 2 mo or 3 mg every 3 mo) plus daily oral placebo, or 2.5 mg daily oral ibandronate plus 2- or 3-monthly IV placebo. Supplemental vitamin D (400 IU) and calcium (500 mg) were provided throughout the 2-year study. RESULTS: At 2 years, the 2- and 3-monthly IV regimens achieved statistically noninferior and also superior increases in lumbar spine BMD compared with the daily regimen (6.4% and 6.3% vs 4.8%, respectively; p < 0.001). Greater increases were also obtained with IV ibandronate versus daily in proximal femur BMD. Serum concentrations of the biochemical marker of bone resorption C-telopeptide of the alpha-chain of type I collagen were reduced to a similar extent in all treatment arms (53.4%-59.9%). The tolerability profile of the IV regimens was similar to that observed with daily oral therapy. CONCLUSION: Ibandronate IV injections are an effective and well tolerated treatment for postmenopausal osteoporosis and provide a useful alternative to oral dosing. [less ▲]

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See detailGroundwater vulnerability assessment using physically based modelling: from challenges to pragmatic solutions
Popescu, Ileana Cristina; Gardin, Nicolas; Brouyère, Serge ULg et al

in Refsgaard, J. C.; Kovar, K.; Haarder, E. (Eds.) et al Calibration and Reliability in Groundwater Modelling: Credibility in Modelling (2008)

Numerous groundwater vulnerability and risk mapping techniques have been developed taking into consideration a variable number of factors. The most common techniques are based on calculation of an index ... [more ▼]

Numerous groundwater vulnerability and risk mapping techniques have been developed taking into consideration a variable number of factors. The most common techniques are based on calculation of an index expressing the protective effect of underground formations overlying the groundwater resource. The limitation of most of these methods is related to their use of a qualitative definition of groundwater vulnerability, as opposed to a definition based on a quantitative description of contaminant migration. A physically-based point of view and definition of the vulnerability is proposed and based on three factors describing a pollution event, which are the contaminant transfer time from the hazard location to the 'target', the contamination duration at the 'target' and the level of contaminant concentration reached at the 'target'. This concept allows a clear distinction between conventional aspects and physically-based results in the building of a final vulnerability indicator. This methodology has the further advantage to consider the possible impact of runoff conditions occurring at the land surface and possibly leading to lateral contamination of groundwater through downstream preferential infiltration features. Practically, this method needs to describe and simulate the pollutant migration in the unsaturated zone and possibly in the saturated zone in order to assess the breakthrough curve at the 'target'. Preliminary application is illustrated on a case-study located in a limestone basin in Belgium. Perspectives are proposed towards a generalisation of the vulnerability concept for risk assessment within a pressure - state - impact framework. [less ▲]

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See detailEvolution des modalités d'évaluation de la fonction rénale basée sur la créatinine entre 2005 et 2008: conséquences pour les biologistes
Séronie-Vivien, S.; Piéroni, L.; Galteau, M.-M. et al

in Annales de Biologie Clinique (2008), 66(3), 263-8

Les recommandations internationales de 2005 concernant l’insuffisance rénale chronique proposent une classification basée sur le débit de filtration glomérulaire (DFG). Depuis cette date, la question ... [more ▼]

Les recommandations internationales de 2005 concernant l’insuffisance rénale chronique proposent une classification basée sur le débit de filtration glomérulaire (DFG). Depuis cette date, la question posée de la validité des formules évaluant le DFG, et des créatininémies qui y sont insérées, se pose de façon encore plus cruciale qu’il y a quelques années. Pour les biologistes, les conséquences de ces recommandations cliniques sont importantes. En premier lieu, la formule classique de Cockcroft-Gault doit être abandonnée au profit de l’équation dite MDRD à 4 variables, et ce malgré les recommandations officielles françaises actuelles, qui devraient être modifiées d’ici peu. D’autre part, afin d’optimiser l’évaluation du DFG par cette formule, les biologistes doivent choisir entre la version dite « 186 » de l’équation MDRD, adaptée aux méthodes de dosage de la créatininémie non raccordées à la méthode de référence (chromatographie liquide ou gazeuse couplée à la spectrométrie de masse) et la version dite « 175 », adaptée aux méthodes de dosages raccordées. A ce jour, seules certaines méthodes enzymatiques ont fait la preuve de leur raccordement à une méthode de référence. L’avenir des méthodes colorimétriques classiques est incertain. [less ▲]

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See detailMothflies (Diptera : Psychodidae) in hospitals: A guide to their identification and methods for their control
Verheggen, François ULg; Mignon, Jacques ULg; Louis, Josiane ULg et al

in Acta Clinica Belgica (2008), 63(4), 251-255

Repeated observation of "mothflies" at CHU Brugmann (Horta site hospital in Brussels) is not an isolated incident. Many public buildings have been infested by these Diptera of the Psychodidae Family ... [more ▼]

Repeated observation of "mothflies" at CHU Brugmann (Horta site hospital in Brussels) is not an isolated incident. Many public buildings have been infested by these Diptera of the Psychodidae Family. Although the species currently seen in Belgium is not a danger to human health, any infestation should be swiftly eradicated so as to limit the risks of a massive proliferation, source of hygiene problems and of potential bacterial dissemination. A good knowledge of adult and larval biology allows the potential sites of infestation to be quickly identified. The method to be envisaged to solve the problem will combine different approaches such as removing the risk factors (decomposing organic matter), monitoring egg-laying sites, applying caustic soda-based products and possibly treating with insecticide. [less ▲]

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See detailA 17,900-year multi-proxy lacustrine record of Lago Puyehue (Chilean Lake District): introduction
De Batist, Marc; Fagel, Nathalie ULg; Loutre, Marie-France et al

in Journal of Paleolimnology (2008), 39(2), 151-161

This paper introduces the background and main results of a research project aimed at unravelling the paleolimnological and paleoclimatological history of Lago Puyehue (40 degrees S, Lake District, Chile ... [more ▼]

This paper introduces the background and main results of a research project aimed at unravelling the paleolimnological and paleoclimatological history of Lago Puyehue (40 degrees S, Lake District, Chile) since the Last Glacial Maximum (LGM), based on the study of several sediment cores from the lake and on extensive fieldwork in the lake catchment. The longest record was obtained in an 11-m-long piston core. An age-depth model was established by AMS C-14 dating, Pb-210 and Cs-237 measurements, identification of event-deposits, and varve-counting for the past 600 years. The core extends back to 17,915 cal. yr. BP, and the seismic data indicate that an open-lake sedimentary environment already existed several thousands of years before that. The core was submitted to a multi-proxy analysis, including sedimentology, mineralogy, grain-size, major geochemistry and organic geochemistry (C/N ratio, delta C-13), loss-on-ignition, magnetic susceptibility, diatom analysis and palynology. Along-core variations in sediment composition reveal that the area of Lago Puyehue was characterized since the LGM by a series of rapid climate fluctuations superimposed on a long-term warming trend. Identified climate fluctuations confirm a.o. the existence of a Late-Glacial cold reversal predating the northern-hemisphere Younger Dryas cold period by 500-1,000 years, as well as the existence of an early southern-hemisphere Holocene climatic optimum. Varve-thickness analyses over the past 600 years reveal periodicities similar to those associated with the El Nino Southern Oscillation and the Pacific Decadal Oscillation, as well as intervals with increased precipitation, related to an intensification of the El Nino impact during the southern-hemisphere equivalent of the Little Ice Age. [less ▲]

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See detailNotaBene RDF Annotation Tool
Mazziotta, Nicolas ULg

Software (2008)

NotaBene RDF Annotation Tool is a wxPython graphical user interface. Its primary purpose is to ease the use of RDF to manually annotate electronic XML editions of left-to-right-written texts. It allows ... [more ▼]

NotaBene RDF Annotation Tool is a wxPython graphical user interface. Its primary purpose is to ease the use of RDF to manually annotate electronic XML editions of left-to-right-written texts. It allows multiple views of the annotated document. [less ▲]

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See detailL'héritage des études sociales de l'objet dans l'action
Melard, François ULg

in Melard, François (Ed.) Écologisation : Objets et concepts intermédiaires (2008)

Ce chapitre introductif vise à présenter une série de perspectives de recherche associées à l'étude des objets et dispositifs socio-techniques selon leurs modes d'engagement dans l'action : l'objet ... [more ▼]

Ce chapitre introductif vise à présenter une série de perspectives de recherche associées à l'étude des objets et dispositifs socio-techniques selon leurs modes d'engagement dans l'action : l'objet "transparent", l'objet "média" ou encore l'objet "médiateur". [less ▲]

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See detailClimate oscillations evidenced by spectral analysis of Southern Chilean lacustrine sediments: the assessment of ENSO over the last 600 years
Fagel, Nathalie ULg; Boes, X.; Loutre, M. F.

in Journal of Paleolimnology (2008), 39(2), 253-266

The Chilean Lake District (38-42 degrees S) is strongly influenced by Southern westerlies-driven precipitations. At 40 degrees S Lago Puyehue provides high resolution sedimentation rates (similar to 1-2 ... [more ▼]

The Chilean Lake District (38-42 degrees S) is strongly influenced by Southern westerlies-driven precipitations. At 40 degrees S Lago Puyehue provides high resolution sedimentation rates (similar to 1-2 mm/yr) suitable for annual climate reconstruction. Several short and long sediment cores were collected in this lake. Their analysis aim at a better understanding of climate mechanisms related to ENSO in this part of the world. The recognition of ENSO related periodicities and their stability is studied through the analysis of two short varved cores collected from underflow and interflow key sites. According to varve chronology controlled by Cs-137 and Pb-210 profiles and chronostratigraphical markers, the short core from underflow site (PU-I) spans 294 +/- 18 years and the core in the interflow site (PU-II) covers 592 +/- 9 years. Several methods of spectral analysis were applied on the total varve thickness to identify potential periodicities in the signal. Blackman-Tuckey, Maximum Entropy, Multi-Taper Methods (MTM) and singular spectrum analysis were applied on the whole record. In addition, evolutive MTM and wavelet analyses allow to identify temporal influence of some periodicities. In the PU-I studied interval (AD 1700-2000), a period at similar to 3.0 years appears in a large part of the interval, mostly in the recent part. Periods at similar to 5.2 and similar to 23 years also show up. PU-II record (AD 1400-2000) displays the most robust periodicities at around 15, 9, 4.4, 3.2 and 2.4 years. These periodicities are in good agreement with the sub-decadal periods identified by Dean and Kemp (2004) and linked to the El Nino Southern Oscillation and the Pacific Decadal Oscillation. Differences in the recorded periodicities between PU-I and PU-II sites are consistent with different sedimentation processes in the lake. According to climate instrumental data for the last 20 years, varves in PU-I site are mostly related to fluvial dynamics and regional climate factors, i.e., precipitation, temperature and wind. In PU-II site, varves increment is related to both regional and global climate forcing factors, i.e., El Nino Southern Oscillation. The evolutive MTM analysis and the wavelet analysis suggest a striking break in the periodicities at around AD 1820. Finally relationships between El Nino and longer term climate phase like the Little Ice Age (LIA) are also assessed. [less ▲]

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See detailLe point sur le diagnostic de l’aspergillose naso-sinusale chez le chien.
Billen, Frédéric ULg; Clercx, Cécile ULg; Peeters, Dominique ULg

in Annales de Médecine Vétérinaire (2008), 152(2)

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See detailComment je previens...l'endocardite infectieuse: une meilleure hygiene bucco-dentaire plutot qu'une antibioprophylaxie systematique?
Morimont, P.; Frippiat, F.; LANCELLOTTI, Patrizio ULg et al

in Revue Médicale de Liège (2008), 63(11), 640-2

Prophylaxis for infective endocarditis has been recommended on the basis of the supposed pathophysiology of the disease, although no randomised clinical trial has confirmed its efficacy. Bacteraemia ... [more ▼]

Prophylaxis for infective endocarditis has been recommended on the basis of the supposed pathophysiology of the disease, although no randomised clinical trial has confirmed its efficacy. Bacteraemia resulting from daily activities is much more likely to cause infective endocarditis than bacteraemia associated with invasive medical procedures. As a result, recommendations for antibiotic prophylaxis tend now to be severely restricted. [less ▲]

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See detailBase de données sur les prix artistiques dans l'entre-deux-guerres au Québec
Dozo, Björn-Olav ULg; Lapointe, Olivier

Textual, factual or bibliographical database (2008)

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See detailDébats belges pour une politique migratoire. Mapping des acteurs
Perrin, Nathalie ULg; Stockmans, Pieter

Book published by Fondation Roi Baudouin (2008)

Cette publication propose un inventaire des principaux acteurs qui contribuent ou peuvent contribuer à définir une politique migratoire pour la Belgique ; elle fait aussi le point sur leurs prises de ... [more ▼]

Cette publication propose un inventaire des principaux acteurs qui contribuent ou peuvent contribuer à définir une politique migratoire pour la Belgique ; elle fait aussi le point sur leurs prises de position récentes. Quel est par exemple le point de vue de la FGTB sur une régularisation ? Que pense la FEB d’une nouvelle migration économique ? Que dit le Conseil des Femmes sur l’accueil des primo-arrivants ? Et bien d’autres encore. [less ▲]

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See detailDetection of antigenic heterogeneity in feline coronavirus nucleocapsid in feline pyogranulomatous meningoencephalitis.
Poncelet, Luc; Coppens, Angélique; Peeters, Dominique ULg et al

in Veterinary Pathology (2008), 45(2)

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See detailThe hallucinating brain: A review of structural and functional neuroimaging studies of hallucinations
Allen, P.; Laroi, Frank ULg; McGuire, P. K. et al

in Neuroscience & Biobehavioral Reviews (2008), 32(1), 175-191

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See detailDifferences and similarities in the sensory and cognitive signatures of voice-hearing, intrusions and thoughts
Moritz, S.; Laroi, Frank ULg

in Schizophrenia Research (2008), 102(1-3), 96-107

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