References of "Scientific congresses and symposiums"
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See detailA search for radial magnetic field gradients in Ap atmospheres
Nesvacil, N.; Hubrig, S.; Jehin, Emmanuel ULg et al

in Zverko, J. (Ed.) The A-Star Puzzle (2004, December 01)

For the first time the possible presence of radial gradients of magnetic fields in the atmospheres of three magnetic Ap stars has been critically examined by measurements of the mean magnetic field ... [more ▼]

For the first time the possible presence of radial gradients of magnetic fields in the atmospheres of three magnetic Ap stars has been critically examined by measurements of the mean magnetic field modulus from spectral lines resolved into magnetically split components lying on the different sides of the Balmer jump. A number of useful diagnostic lines below and above the Balmer discontinuity, only slightly affected by blends, with simple doublet and triplet Zeeman pattern have been identified from the comparison between synthetic spectra computed with the SYNTHMAG code and the high resolution and S/N spectra obtained in unpolarized light with the ESO-VLT UVES spectrograph. For all three stars of our sample, HD 965, HD 116114 and 33 Lib (HD 137949), an increase of the magnetic field strength of the order of a few hundred Gauss has been detected bluewards of the Balmer discontinuity. These results should be taken into account in future modelling of the geometric structure of Ap star magnetic fields and the determination of the chemical abundances in Ap stars with strong magnetic fields. [less ▲]

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See detailLimits for the application of spectroscopic mode ID methods
Zima, W.; Kolenberg, K.; Briquet, Maryline ULg et al

in IAU Symposium, No. 224, The A-Star Puzzle, held in Poprad, Slovakia, July 8-13, 2004. (2004, December 01)

Spectroscopic mode identification techiques, which monitor intensity variations across an absorption line, provide the possibility of determining the quantum numbers l and m, the inclination and the ... [more ▼]

Spectroscopic mode identification techiques, which monitor intensity variations across an absorption line, provide the possibility of determining the quantum numbers l and m, the inclination and the intrinsic pulsation amplitude of a star. Of course, the uncertainties of the mode identification are dependent on the quality of the observations and the identification method applied. We have focused on the Pixel-by-pixel method/Direct line profile fitting (Mantegazza 2000) and the Moment method (Balona 1987, Briquet & Aerts 2003) for pinpointing mode parameters and tested the impact of various observational effects and stellar properties on the identification. [less ▲]

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See detailRelationships between incremental and cumulative fold growth with neotectonic examples from the southern Tianshan, China
Suppe, J; Hubert, Aurelia ULg; Wang, Xin

in EOS : Transactions, American Geophysical Union (2004, December)

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See detailAragonite Undersaturation in the High-Latitude Surface Ocean Within the 21st Century
Orr, J. C.; Fabry, Véronique ULg; Aumont, O. et al

Conference (2004, December)

The surface ocean is everywhere saturated with calcium carbonate (CaCO[SUB]3[/SUB]). Yet increasing atmospheric CO[SUB]2[/SUB] reduces ocean pH and carbonate ion concentration and thus the level of ... [more ▼]

The surface ocean is everywhere saturated with calcium carbonate (CaCO[SUB]3[/SUB]). Yet increasing atmospheric CO[SUB]2[/SUB] reduces ocean pH and carbonate ion concentration and thus the level of saturation. Here we show with ocean data and models that due to this anthropogenic acidification, some surface waters will become undersaturated within decades. When atmospheric CO[SUB]2[/SUB] reaches 550 ppmv, in year 2050 under the IS92a business-as-usual scenario, Southern Ocean surface waters begin to become undersaturated with respect to aragonite, a metastable form of CaCO[SUB]3[/SUB]. By 2100 as atmospheric CO[SUB]2[/SUB] reaches 788 ppmv, undersaturation extends throughout the entire Southern Ocean (<60[SUP]o[/SUP]S) and into the surbarctic Pacific. Meanwhile, Weddell Sea surface waters also become undersaturated with respect to calcite, the stable form of CaCO[SUB]3[/SUB]. These transient changes are much larger than seasonal, interannual, and decadal variability. They threaten high-latitude aragonite secreting organisms including cold-water corals, which provide essential fish habitat, and shelled pteropods, i.e., zooplankton that serve as an abundant food source for marine predators. [less ▲]

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See detailCollective Motion: Bistability and Trajectory Tracking
Paley, Derek; Leonard, Naomi; Sepulchre, Rodolphe ULg

in Proceedings of the 43rd IEEE Conference on Decision and Control (2004, December)

This paper presents analysis and application of steering control laws for a network of self-propelled, planar particles. We explore together the two stably controlled group motions, parallel motion and ... [more ▼]

This paper presents analysis and application of steering control laws for a network of self-propelled, planar particles. We explore together the two stably controlled group motions, parallel motion and circular motion, for modeling and design purposes. We show that a previously considered control law simultaneously stabilizes both parallel and circular group motion, leading to bistability and hysteresis. We also present behavior primitives that enable piecewise-linear network trajectory tracking. [less ▲]

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See detailA Long-Term Slip-Rate Study Along The North Anatolian Fault, Eksik, Turkey Using Cosmogenic 36Cl
Kozaci, O; Dolan, J; Finkel, R et al

in EOS : Transactions, American Geophysical Union (2004, December)

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See detailOn the Robustness of Air-Sea Flux Estimates of Carbon Dioxide from Ocean Inversions
Mikaloff Fletcher, S. E.; Gruber, N. P.; Jacobson, A. et al

Conference (2004, December)

Inverse methods analogous to those used for atmospheric inversions have been adapted to estimate regional air-sea fluxes of carbon dioxide using ocean interior observations of dissolved inorganic carbon ... [more ▼]

Inverse methods analogous to those used for atmospheric inversions have been adapted to estimate regional air-sea fluxes of carbon dioxide using ocean interior observations of dissolved inorganic carbon and related tracers and an Ocean General Circulation Model (OGCM). We estimate seperately the preindustrial component and the component due to the anthropogenic perturbation of atmospheric carbon dioxide. Previous sensitivity studies have shown that model circulation is one of the most important sources of error in the ocean inversion. We present estimates of preindustrial and anthropogenic air-sea carbon dioxide exchange using a suite of nine different OGCM's in order to quantify the robustness of our results and explore the role of different representations of ocean circulation in the inversion. Most of the large scale features of the inverse estimates are robust across all models. The preindustrial inverse estimates generally follow the expected pattern of uptake at high latitudes and out gassing in the tropics; however, all of the models call for out gassing in the Southern Ocean between 44S and 58 S. The greatest anthropogenic carbon uptake occurs at mid- to high- latitudes, with a large anthropogenic carbon sink in the Southern Ocean, while the bulk of the anthropogenic carbon storage occurs at mid-latitudes. Preliminary results also suggest interesting, robust differences between these inverse estimates and estimates from forward model simulations. Both the preindustrial and anthropogenic carbon dioxide flux estimates are most robust at mid and high northern latitudes, except for the high latitude North Atlantic. The carbon dioxide flux estimates are most uncertain in the Southern Ocean, where the inverse estimates are strongly dependent on the rates of deep water ventilation in the OGCM. The preindustrial inverse estimates for the Indian Ocean are also sensitive to the choice of OGCM, and the anthropogenic estimates have significant uncertainties in the tropical Pacific. Over large spatial scales, inverse estimates based on different OGCM's are in better agreement than estimates based on forward simulations of the same models, but this is not necessarily true for smaller model regions. [less ▲]

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See detailOn the way of understanding the adaptation to extreme pH of family 11 xylanases: Structural comparison and mutational analysis
De Lemos Esteves, Frédéric ULg; Ruelle, Virginie; Gouders, Thierry et al

Poster (2004, December)

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See detailFluid Bearings in LOX
Bozet, Jean-Luc ULg

Conference (2004, December)

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See detailClues for Differential Diagnosis of atypical myopathy
Votion, Dominique ULg; Amory, Hélène ULg; Sandersen, Charlotte ULg et al

in Proceeding of the Maastricht International Congress on Equine Medicine (MICEM) (2004, December)

Atypical myopathy (AM), also called “atypical myoglobinuria”, is a frequently and rapidly fatal myopathy of unknown origin occurring sporadically in grazing horses. As opposed to the exertional ... [more ▼]

Atypical myopathy (AM), also called “atypical myoglobinuria”, is a frequently and rapidly fatal myopathy of unknown origin occurring sporadically in grazing horses. As opposed to the exertional rhabdomyolysis syndrome (ERS), clinical signs of AM are not induced by exercise. The condition has been reported in several European countries including Belgium, France, Germany and Great Britain. Clinical signs of AM are characterised by muscular weakness, stiffness, recumbency, sweating and when urine is observed, myoglobinuria. These signs are characteristic but not pathognomonic of the disease; the differential diagnosis of sudden weakness, severe myopathy and/or unexpected death includes several neurogenic and myopathic disorders. The main pathologies that share clinical similarities with AM include the acute form of grass sickness (GS), acute piroplasmosis, botulism, ERS, the hyperkalemic periodic paresis (HPP), nutritional myopathy (NM; i.e. vitamin E and/or selenium deficiency), plants or drugs (i.e. ionophores intoxication) intoxication, tetanus and postanaesthesia myopathy. This report aims at reviewing key facts in history, clinical signs, clinical examination and laboratory findings that contribute towards the diagnosis of AM and/or invalidate the diagnosis of other pathologies. [less ▲]

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See detailCharacterization of inulin stored at different relative humidities by MDSC and X-ray diffraction, related to soption isotherms.
Ronkart, Sébastien; Fougnies, C.; Paquot, Michel ULg et al

Poster (2004, December)

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See detailMultiwavelength and multi-epoch imaging of RXS J1131-1231
Sluse, Dominique ULg

Conference (2004, December)

We report results from a large set of multi-wavelength images of the quadruply imaged quasar RXS J1131-1231. We show images of this system and of the Einstein ring from the visible to the near infrared ... [more ▼]

We report results from a large set of multi-wavelength images of the quadruply imaged quasar RXS J1131-1231. We show images of this system and of the Einstein ring from the visible to the near infrared. We infer from these images an improved astrometry and we compare various simple models. Based on the flux variations observed in various filters during a 1.5 year period, we deduce two likely microlensing scenarios. Finally, we try to explain the observed chromatic variations of the flux ratios and we discuss the occurence of a flux ratio anomaly in this system. [less ▲]

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See detailLa carte des territoires paysagers de Wallonie
Droeven, Emilie ULg; Kummert, Magali

Poster (2004, December)

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See detailSeismic Diagrams for beta Cephei stars; A database for COROT
Thoul, Anne ULg

Conference (2004, December)

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See detailBiomaterials, their potential in medicine and their actual side effects
Grandfils, Christian ULg

Conference (2004, November 29)

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See detailESR studies of the in-situ nitroxide-mediated polymerization (NMP) of styrene using a nitrone
Sciannamea, Valérie; Bernard, M.; Catala, J.-M. et al

Conference (2004, November 26)

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See detailCharacterization of the tumor micro-environment after administration of glucocorticoids to understand their radiosensitization effect
Crokart; Jordan; Baudelet et al

Poster (2004, November 26)

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See detailMutation douce de l'enseignant en concepteur-tuteur dans des activités d'apprentissage totalement à distance. Communication présentée au Colloque TICE Méditérannée, Nice
Vandeput, Etienne ULg; Denis, Brigitte ULg

in Actes du colloque TICE Méditérannée (en ligne) (2004, November 26)

Experts in education and communication technology cannot speak about distance learning without calling up the new roles it springs up and the new relationships it generates. Its detractors claim that ... [more ▼]

Experts in education and communication technology cannot speak about distance learning without calling up the new roles it springs up and the new relationships it generates. Its detractors claim that, under these new conditions, this kind of learning requires significant and expansive means unlike a more classical one. Instead of giving up in front of such disheartening elements, the authors have been trying to measure how far a simple distance learning system (i.e. with little human, hardware and software means) can be implemented. In that way, they have been creating a learning environment basically based on a mixture of individual and collaborative works. Owing to both this mixture and the organization structure, the students can reach the fixed learning goals. Through these processes, they try to isolate practices, learners or teaching staff should be inspired by. They should, in that way, evolve slightly from a classical context to the design of learning scripts including efficient tutoring in a distance context. The course described in this paper is called “Analysis of distance learning environments”. The public consists of adults having enrolled for a DES in Education and Training Technology. To conduct this experiment, the authors have been setting themselves some rules and constraints in order to derive a general process that might be applied to various situations. These rules and constraints are very close to the usual learner’s working constraints. Recommendations focus on practices including careful preparation, coordination techniques betweenteachers and learner’s initiation into reflexivity. [less ▲]

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See detailPli et subjectivation chez Heidegger
Pieron, Julien ULg

Conference (2004, November 23)

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See detailRachis – Nerfs périphériques.
Martin, Didier ULg

Conference (2004, November 21)

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See detailTraumatisme médullaire - imagerie post-mortem par résonance magnétique 9,4T avec corrélation anatomo-pathologique.
Scholtes, Félix ULg; Adriaensens, P.; Storme, L. et al

Conference (2004, November 21)

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See detailEtude EMG du multifidus lombaire dans les radiculopathies lombo-sacrées par conflit disco-radiculaire.
TOMASELLA, Marco ULg; WANG, François-Charles ULg; CRIELAARD, Jean-Michel ULg

in Abstract Book du Symposium de Médecine Physique - EMG - Réadaptation du 20 novembre 2004. (2004, November 20)

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See detailAnálisis cladístico de la correlación entre patogenia y marcadores moleculares en la región 5’ LTR del Virus de la Leucosis Bovina
Rodriguez, Sabrina ULg; Zwerdling, A.; Jones, L.R. et al

Poster (2004, November 14)

ANALISIS CLADISTICO DE LA CORRELACION ENTRE PATOGENIA Y MARCADORES MOLECULARES EN LA REGION 5’ LTR DEL VIRUS DE LA LEUCOSIS BOVINA. SM Rodriguez1; A Zwerdling1; LR Jones1; K Trono1 1Instituto de Virología ... [more ▼]

ANALISIS CLADISTICO DE LA CORRELACION ENTRE PATOGENIA Y MARCADORES MOLECULARES EN LA REGION 5’ LTR DEL VIRUS DE LA LEUCOSIS BOVINA. SM Rodriguez1; A Zwerdling1; LR Jones1; K Trono1 1Instituto de Virología, CICVyA, INTA-Castelar. CC 25 (1712), Castelar, Argentina. El virus de la leucosis bovina (Bovine Leukemia Virus, BLV) es un miembro de la familia Retroviridae. Esta familia incluye los virus responsables de la leucemia de células T de los humanos (Human T-Cell Lymphotropic Virus-1 y -2) y de los simios (Simian T-lymhotropic Virus). BLV afecta al ganado bovino produciendo en un reducido numero de animales (2-5%) una neoplasia linfoproliferativa de células B de origen clonal conocida como Leucosis Bovina Enzootica (LBE). La mayoría de los individuos infectados con BLV son portadores asintomáticos (AL), cursando la infección sin signos clínicos aparentes. Alrededor del 30% de los animales infectados desarrolla una proliferación benigna policlonal de células B, denominada Linfocitosis Persistente (LP). En nuestro laboratorio hemos secuenciado la zona R-U5 del sector 5' LTR de aislamientos provenientes de 36 animales presentando diferentes formas clínicas. El resultado de estos estudios reveló la presencia de 4 bases covariantes para provirus aislados de linfosarcoma (LS). Estas modificaciones están ausentes en la mayoría (16/22) de los provirus aislados de formas asintomáticas (AL/PL). Si bien esta aparente correlación entre los cambios de nucleótidos y los cuadros clínicos sugiere la presencia de marcadores de patogenia, es necesario analizar dentro de un contexto histórico (cladograma) la aparición independiente de dicho marcador en conjunto con el desarrollo de LS. Para ello, se obtuvieron las secuencias correspondientes a la región genómica codificante env y pX para algunos de estos aislamientos de LS y AL/PL. Las secuencias fueron alineadas mediante el programa ClustalX y los alineamientos fueron utilizados para obtener cladogramas mediante las rutinas de máxima parsimonia del programa PAUP*. El análisis de los árboles obtenidos sugiere que la adquisición del marcador en la región LTR y el desarrollo de LS en diferentes aislamientos serían independientes, apoyando la hipótesis de la existencia de un marcador de patogenia en dicha zona regulatoria. [less ▲]

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See detailExpresión de la proteína p24 del Virus de la Leucosis Bovina en E. coli y su potencial utilización en pruebas de diagnostico
Gutiérrez, G.; Álvarez, I.; Rodriguez, Sabrina ULg et al

Poster (2004, November 14)

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See detailPolitiques sportives pour la "non violence"
Comeron, Manuel ULg

Conference (2004, November 14)

ÁREAS TEMÁTICAS: 1. MEDIOS DE COMUNICACIÓN (Radiotelevisión y Prensa), ASOCIACIONISMO DEPORTIVO Y CLUBES DE LIGAS FEDERADAS. 2. ACADÉMICA Y EDUCATIVA (EL DEPORTE, LA VIOLENCIA Y LOS PROCESOS DE ... [more ▼]

ÁREAS TEMÁTICAS: 1. MEDIOS DE COMUNICACIÓN (Radiotelevisión y Prensa), ASOCIACIONISMO DEPORTIVO Y CLUBES DE LIGAS FEDERADAS. 2. ACADÉMICA Y EDUCATIVA (EL DEPORTE, LA VIOLENCIA Y LOS PROCESOS DE CIVILIZACIÓN : Antropología del Deporte, Psicología eEolutiva de la Actividad Física y Sociología y del Deporte) 3. LEGISLATIVA (LEGISLACIÓN EN EL ÁMBITO DE LA VIOLENCIA DEPORTIVA) 4. LAS POLÍTICAS DEPORTIVAS PARA LA “NOVIOLENCIA” (VIOLENCIA DESDE EL PUNTO DE VISTA DEL ENTORNO / MODELO INTERNACIONAL, NACIONAL Y AUTONÓMICO) [less ▲]

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See detailGestion globale du traitement de l'hypertension artérielle
Krzesinski, Jean-Marie ULg

Conference (2004, November 12)

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See detailParticle size analysis : a multidimensional approach
Grandfils, Christian ULg

Conference (2004, November 09)

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See detailLe syndrome de Parsonage et Turner
Kaux, Jean-François ULg; Wang, François ULg

Conference (2004, November 02)

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See detailComet C/2001 Q4 (NEAT) at its closest approach to the Earth
Tozzi, G. P.; Boehnhardt, H.; Del Bo, M. et al

in American Astronomical Society, DPS meeting #36 (2004, November 01)

Comet C/2001 Q4 (NEAT) was observed at ESO (La Silla) for three consecutive nights at the beginning of May, 2004 at its closest approach to Earth. The observations consisted of quasi-simultaneous multi ... [more ▼]

Comet C/2001 Q4 (NEAT) was observed at ESO (La Silla) for three consecutive nights at the beginning of May, 2004 at its closest approach to Earth. The observations consisted of quasi-simultaneous multi-wavelength exposures in the visible, near-IR and thermal-IR in order to study different properties of the solid component that are responsible for the scattering and emission of radiation in different spectral ranges. The comet was observed with the 3.6m telescope, equipped with TIMMI2 for the thermal-IR region, the NTT, equipped with EMMI and SOFI for the visible and near-IR regions. Narrow band images and long slit spectra were recorded for each spectral region. In the near-IR range, polarimetric observations were also performed during the last night. The aim of the observations was the characterization of the solid component at small scalelength to search for possible short lifetime organic components, as those found in the comet C/2000 WM1 (Tozzi et al., 2004, A&A, 424, 235), dust fragmentation etc.. Here we report preliminary results of the analysis of these observations. [less ▲]

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See detailComparison of plyometric training combined with electrical stimulation versus plyometric training alone on vertical jump and sprint performance
Lehance, Cédric ULg; Vanderthommen, Marc ULg; Croisier, Jean-Louis ULg et al

in Abstract Book of the 4th International Conference on Strength Training (Serres, Greece) (2004, November)

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See detailFemale entrepreneurs and financing
Constantinidis, Christina ULg; Cornet, Annie ULg

Conference (2004, November)

Our paper presents some results from a research on women's entrepreneurship in Belgium, which is part of a wider project called “Diane”, which took place within the framework of an equal opportunity ... [more ▼]

Our paper presents some results from a research on women's entrepreneurship in Belgium, which is part of a wider project called “Diane”, which took place within the framework of an equal opportunity action. We choose to expose one of the most interesting aspects of this research on women’s entrepreneurship : financing. The main question of our research was to enquire whether there are any specificities in the women’s entrepreneurship in Belgium as regards the financing of their firms. First, we investigated the amounts that female entrepreneurs invested for the start-up and development of their firms. Second, we aimed to determine which financing sources were used by female entrepreneurs. Finally, we enquired whether they had access to external financing, and more specifically to bank loans. Our results show that female entrepreneurs have mainly recourse to their personal savings or to family and friends’ loans to finance the company start-up and development. But they use also bank loans in a great extent for their firm launching. Nevertheless, it seems that they apply for bank loans only if they have no other choice, due to their strong risk-aversion and their lack of trust toward bankers. These reasons also lead them to invest lower amounts in the start-up and development of their companies. Female entrepreneurs face a lot of barriers to bank financing. There are several specific financing problems for female entrepreneurs, related to some of their firm’s characteristics, especially the field of activity and the size. Some gender characteristics can also be barriers to financing. On the basis of our results, we draw some recommendations for public authorities. [less ▲]

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See detailCaractérisation de la farnésyle pyrophosphate synthase de pucerons
Beliveau, Catherine; Vandermoten, Sophie ULg; Francis, Frédéric ULg et al

Poster (2004, November)

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See detailLa nación en los tiempos de la globalización: algunas tensiones en el discurso zapatista
Vanden Berghe, Kristine ULg

in Maihold, Günther (Ed.) Las modernidades de México. Espacios, procesos, trayectorias (2004, November)

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See detailInfluence of a short time specific strength training on iso-inertial performances
Jidovtseff, Boris ULg; Croisier, Jean-Louis ULg; Scimar, N. et al

in Abstract Book of the 4th International Conference on Strength Training (Serres, Greece) (2004, November)

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See detailThe Articulation of “I”, “We” and the “Person”. Elements for an Anthropological Approach within Western and Islamic Contexts
Nachi, Mohamed ULg

in Dupret, Baudouin (Ed.) Standing Trial. Law and the Person in the Modern Middle East (2004, November)

Comment les éléments constitutifs de l'identité personnelle orientent-ils les jugements des individus, leur sens moral et leur perception du juste.

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See detailA Machine Learning Approach to Improve Congestion Control over Wireless Computer Networks
Geurts, Pierre ULg; El Khayat, Ibtissam; Leduc, Guy ULg

(2004, November)

In this paper, we present the application of machine learning techniques to the improvement of the congestion control of TCP in wired/wireless networks. TCP is suboptimal in hybrid wired/wireless networks ... [more ▼]

In this paper, we present the application of machine learning techniques to the improvement of the congestion control of TCP in wired/wireless networks. TCP is suboptimal in hybrid wired/wireless networks because it reacts in the same way to losses due to congestion and losses due to link errors. We thus propose to use machine learning techniques to build automatically a loss classifier from a database obtained by simulations of random network topologies. Several machine learning algorithms are compared for this task and the best method for this application turns out to be decision tree boosting. It outperforms ad hoc classifiers proposed in the networking literature. [less ▲]

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See detailIsocinétisme et prévention lésionnelle musculaire chez le footballeur professionnel
Croisier, Jean-Louis ULg; Ganteaume, S.; Ferret, J. M.

in Actes du XIVe Congrès National Scientifique de la Société Française de Médecine du Sport (2004, November)

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See detailcomparison between co-crystallisation properties of POP and OPP : a tool to understand industrial processes
gibon, Véronique; tirtiaux, alain; Danthine, Sabine ULg et al

Poster (2004, November)

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See detailFacteurs influençant la performance de terrain en volley-ball
Forthomme, Bénédicte ULg; Croisier, Jean-Louis ULg; Ciccarone, Guido et al

in Actes du XIVe Congrès National Scientifique de la Société Française de Médecine du Sport (2004, November)

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See detailOceanic fronts in the Southern Indian Ocean as inferred from the NOAA SST, TOPEX/POSEIDON and ERS-2 altimetry data
Kostianoy, A.G.; Ginzburg, A.I.; Lebedev, S.A. et al

Poster (2004, November)

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See detailL'insertion professionnelle peut-elle se cogérer ?
Pieters, Jérôme ULg; Jacquemain, Marc ULg

Conference (2004, November)

A partir des dispositifs de participation dans l'insertion professionnelle en Belgique francophone, la communication s'interroge sur la possibilité de pérenniser ce type d'expérience.

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See detail“Speaking while walking” in MS : a dual task rehabilitation
DELRUE, Gaël ULg; HOGGE, Michaël; ROBINEAU, Céline et al

Poster (2004, November)

A specific rehabilitation on dual tasking while walking improves the ability to walk while talking in multiple sclerosis patients.

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See detailPhysicochemical Characteristics of some ternary Fat Blends
Danthine, Sabine ULg; gibon, véronique; norberg, B. et al

Poster (2004, November)

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See detailHow many women can benefit from a full intrapartum antibiotic prphylaxis for prevention of perinatal group B streptococcal disease?
MELIN, Pierrette ULg; Lorquet, Sophie; Rodriguez Cuns, Grisel et al

in American Society of Microbiology (Ed.) Program and Abstracts of the 44th Intersciences Conference on Antimicrobial Agents and Chemotherapy (2004, November)

Background: In Belgium as in many Western countries, GBS are still the leading cause of severe perinatal infections. Current guidelines for prevention recommend intrapartum antimicrobial prohylaxis (IAP ... [more ▼]

Background: In Belgium as in many Western countries, GBS are still the leading cause of severe perinatal infections. Current guidelines for prevention recommend intrapartum antimicrobial prohylaxis (IAP) administered promptly before delivery to pregnant women colonized with GBS. The risk of vertical GBS transmission to the newborn decreases as the duration of prophylaxis increases. The considered threshold for prophylaxis adequacy is the first dose administered at least 4 hours before delivery. Objective: To evaluate the proportion of pregnant women who could benefit from an adequate IAP for the prevention of GBS perinatal infections. Methods: Between June and October 2003, we recorded in two hospitals the elapse time between admission for labor and delivery. We assumed 5 hours represent a useful threshold to allow admission, revision of chart and administration of adequate IAP. The status of vaginal colonization with GBS was determined by CDC’s recommended culture method with Granada agar added. Results: Among 532 women, 27.3 % delivered within 5 hours after admission for labor. The colonization rate for GBS was 25.6 %. The distribution of elapse time between admission and delivery for GBS colonized pregnant women was not significantly different from non colonized women (p <= 1). Conclusions: 1) With the current prevention strategy, 27.3 % of these pregnant women would not have benefit from adequate prophylaxis 2) These results highlight the importance of an efficient organization to warranty prompt administration of IAP as soon as possible when mandatory. 3) If a rapid intrapartum screening test is used, no delay can be afforded “from ward to bench to bed”. [less ▲]

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See detailReal-Time PCR detection of group B streptococci from pregnant women's vaginal specimens at time of delivery: clinical evaluation
MELIN, Pierrette ULg; Rodriguez Cuns, Grisel; Lorquet, Sophie et al

in American Society of Microbiology (Ed.) Program and Abstracts of the 44th Intersciences Conference on Antimicrobial Agents and Chemotherapy (2004, November)

Guidelines for prevention recommend intrapartum antimicrobial prohylaxis (IAP) for pregnant women with a positive prenatal culture-based screening for GBS. To improve this strategy, a rapid screening ... [more ▼]

Guidelines for prevention recommend intrapartum antimicrobial prohylaxis (IAP) for pregnant women with a positive prenatal culture-based screening for GBS. To improve this strategy, a rapid screening performed at the onset of labor with the IDI-Strep BTM test (IDI), a real time PCR detection (Infectio Diagnostic), may be used. Objective: To evaluate the performance of the IDI to detect GBS from vaginal specimens collected at time of delivery. Methods: Intrapartum vaginal specimens from 923 pregnant women were tested to determine the status of GBS colonization, by CDC’s recommended culture method (including selective LIM broth) with a Granada agar (GR) added as well as by the IDI and the immunologic StrepB OIATM test (OIA), BioStar. The performance of the different methods was compared. Results: GBS were recovered from 16.8% and 23.6% specimens respectively on primary culture plates and overall. The colonization rate for GBS was 18.6 % by IDI and 15.7 % by OIA testing. The sensitivity of IDI for identifying vaginal colonization status at delivery was 92 % or 77.1 % when compared to GR primary cultures or to overall culture results, and for the OIA, it was respectively 65.1 or 52.1 %. The specificity was 99.1 % for IDI and 95.5 % for OIA. The turnaround time for obtaining results was less than one hour for both IDI and OIA. Conclusions: 1) Strep B-IDI test, performed on intrapartum vaginal specimens, yields relevant results rapidly enough to be used as an efficient diagnostic tool for the identification of GBS colonized women, in order to offer IAP really targeted to GBS carriers. 2) By comparison to the prenatal screening-based strategy, the high sensitivity and specificity of IDI would allow a reduction of useless IAP and of missed opportunities. 3) IDI testing might be implemented “in routine” in some hospitals for further clinical and practical evaluation. [less ▲]

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See detailA 2-step methodology for the generation of accurate FE models of nonlinear systems,
Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in ASME Internaional Mechanical Engineering Congress, Anaheim, 2004 (2004, November)

Model updating and validation is currently a central issue in the fields of computational structural mechanics and dynamics. The vast majority of applications however concerns linear structures. On the ... [more ▼]

Model updating and validation is currently a central issue in the fields of computational structural mechanics and dynamics. The vast majority of applications however concerns linear structures. On the other hand, updating nonlinear models is something the structural dynamicist prefers to avoid mainly because tools such as modal analysis are no longer available. The objective of the present study is to propose a two-step methodology for dealing with nonlinear systems. Its most appealing feature is that it decouples the estimation of the linear and nonlinear parameters. A numerical application consisting of an aeroplane-like structure is used to assess the efficiency of the procedure. [less ▲]

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See detailInterférométrie holographique sur base de cristaux photoréfractifs dynamiques et lasers à double impulsion : le projet européen PHIFE
Georges, Marc ULg; Thizy, Cédric ULg; Lemaire, Philippe et al

in Smigielski, P. (Ed.) Actes du Cinquième colloque francophone Méthodes et Techniques Optiques pour l'Industrie (2004, November)

Les cristaux photoréfractifs sont des supports holographiques dynamiques (auto-enregistrables, effaçables et indéfiniment réutilisables) qui permettent l'acquisition rapide d'hologrammes utilisables en ... [more ▼]

Les cristaux photoréfractifs sont des supports holographiques dynamiques (auto-enregistrables, effaçables et indéfiniment réutilisables) qui permettent l'acquisition rapide d'hologrammes utilisables en interférométrie holographique. De plus, certaines de leurs propriétés cristallines permettent l'obtention d'interférogrammes de qualité incomparable. Nous avons déjà présenté à maintes reprises les développements et applications d'instruments de métrologie basés sur ces cristaux avec des lasers continus. Des expériences préliminaires sur base de lasers à simple impulsion avaient aussi été montrées. Nous présentons ici la suite de ces expériences et qui ont lieu dans le cadre du projet européen PHIFE "Pulsed Holographic Interferometer for the analysis of Fast Events". PHIFE a pour objectif le développement d'un instrument à champ complet fonctionnant avec un laser YAG Q-switch à double impulsion. [less ▲]

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See detail“Speaking while walking” in MS : a dual task evaluation
DELRUE, Gaël ULg; HOGGE, Michaël; MINART, Elodie et al

Poster (2004, November)

A specific evaluation of dual tasking while walking shows that multiple sclerosis patients encounter significant difficulties in carrying together a dual task combining walking and counting backwards.

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See detailQualification de grands réflecteurs en environnement spatial
Thizy, Cédric ULg; Stockman, Yvan ULg; Doyle, Dominic et al

in Smigielski, P. (Ed.) Actes du Cinquième colloque francophone Méthodes et Techniques Optiques pour l'Industrie (2004, November)

Les nouvelles générations de télescopes spatiaux dans le domaine infrarouge nécessitent des réflecteurs de grandes dimensions et de haute qualité. Ceux-ci, pour des raisons de poids, sont basés sur les ... [more ▼]

Les nouvelles générations de télescopes spatiaux dans le domaine infrarouge nécessitent des réflecteurs de grandes dimensions et de haute qualité. Ceux-ci, pour des raisons de poids, sont basés sur les technologies des matériaux composites dont les comportements aux basses températures sont mal connus. Une méthode par interférométrie holographique de vérification et de validation en environnement spatial de ce type de réflecteurs est présentée. Elle est basée sur l'utilisation d'une caméra holographique dynamique observant un dépoli sur lequel est projeté le faisceau objet venant de la surface réfléchissante. Outre une augmentation de la dynamique de mesure, cette méthode offre l’avantage principal, par rapport aux techniques d’interférométrie optique, de ne pas nécessiter de système optique d’adaptation du front d’onde au réflecteur à mesurer et donc un gain de flexibilité majeur pour des formes exotiques de réflecteurs (types asphériques). Le système de mesure a été calibré avec un interféromètre ponctuel à effet Doppler. L'influence des différentes sources d’erreur du système sur la mesure a été évaluée. Cette évaluation a porté principalement sur des aspects vibratoires et thermiques. Ces réflecteurs devant être testés sous vide et à basses températures, le système de mesure a été rendu compatible à ces conditions. Des éléments de la caméra holographique (objectifs, CCD, cristal, fibre optique) ont été adaptés et testés sous vide. La certification métrologique de l’ensemble du système sera réalisée par la mesure d'une antenne parabolique, de 1.1 m de diamètre de comportement connu et placée dans un environnement spatial simulé. Le test consistera à mesurer les déplacements et déformations de l'antenne entre un état initial à la température ambiante, et un état final à une température d'environ 130K. [less ▲]

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See detailLes causes d’intolérance à l’effort chez le cheval : résultats de deux études rétrospectives
van Ercke, Emmanuelle; Ponthier, Jérôme ULg; Couetil, Laurent et al

Conference (2004, November)

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See detailLes médias et le Rwanda : la question du rapatriement
Servais, Christine ULg

Conference (2004, November)

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See detailDrogas de algunas plantas medicinales en el Sistema Dunar y de Saladar de El Saler (Valencia)
Cascales - Miñana, Borja ULg; Soriano, Pilar; Martínez-Solís, Isabel

Conference (2004, November)

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See detailEffects of plyometric training combined with electrical stimulations versus plyometric training alone on functional performance
Bury, Thierry ULg

in Abstract book of 4th International Conference of Strength Training (2004, November)

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See detailLagrangian simulations of polymer drag reduction
Terrapon, Vincent ULg

Conference (2004, November)

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See detailSum-frequency generation spectrocopy applied to model biosensors systems
Dreesen, Laurent ULg; Sartenaer, Yannick; Humbert, Christophe et al

Conference (2004, November)

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See detailLe tranchant des modernes (suite)
Delville, Michel ULg

in L'oeuvre en morceaux: Esthétiques de la mosaïque (2004, October 28)

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See detailUne langue de référence pour les enfants issus de l’immigration
Lucchini, Silvia ULg

Conference (2004, October 26)

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See detailCharacterization of Cytotoxic Necrotizing Factor (CNF)-producing Escherichia coli isolated from cattle in Argentina
Mercado, E.C.; Rodriguez, Sabrina ULg; Elizondo, A.M. et al

Poster (2004, October 24)

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See detailVers une analyse de la littérature francophone sur l’intervention en sport
Cloes, Marc ULg; Lenzen, Benoit; Trudel, Pierre

Poster (2004, October 23)

Les auteurs proposent une première analyse de la littérature francophone centrée sur la 'science du coaching'. Il s'agit d'une approche multidimensionnelle permettant d'identifier les principales ... [more ▼]

Les auteurs proposent une première analyse de la littérature francophone centrée sur la 'science du coaching'. Il s'agit d'une approche multidimensionnelle permettant d'identifier les principales caractéristiques des études publiées dans ce domaine de recherche en plein développement. [less ▲]

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See detailParenté sociale et adoption homosexuelle
Leleu, Yves-Henri ULg

Conference (2004, October 22)

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See detailPrééclampsie
Brichant, Jean-François ULg

Conference (2004, October 21)

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See detailPrevention of hamstring injuries in football players
Croisier, Jean-Louis ULg

in Congress book of Brucosport – 23rd Congress of Sports Medicine of the AZ Sint-Jan AV (2004, October 15)

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See detailUse of DSC for studying oils, fats and other food materials
Danthine, Sabine ULg

Conference (2004, October 15)

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See detailL'évaluation comme facteur de cohésion d'un partenariat local intersectoriel
Vandoorne, Chantal ULg; Nicolet, Maryline; Leva, Chantal et al

Conference (2004, October 12)

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See detailSubacute effects of sertraline on attentional and executive functions in major depression
Constant, Eric; Adam, Stéphane ULg; Gillain, B. et al

Poster (2004, October 10)

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See detailPost-mortem, high resolution magnetic resonance imaging (9.4T) correlates with histopathology after traumatic spinal cord injury.
Scholtes, Félix ULg; Adriaensens, P.; Storme, L. et al

Conference (2004, October 08)

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See detailUn autre mode de financement des cultes et de la laïcité est-il possible ?
Husson, Jean-François ULg; Lahaye, Jérôme; Dury, Julie

Conference (2004, October 08)

Cette présentation fait le relevé de diverses propositions visant à modifier le mode d'organisation et/ou de financement des cultes en Belgique.

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See detailAirborne hyperspectral measurements and superficial soil organic matter
Touré, Souleymane; Tychon, Bernard ULg

in Proceedings of the Airborne Imaging Spectroscopy Workshop (2004, October 08)

Data acquired from field campaign and hyperspectral airborne sensors were processed to determine the surface soil organic matter of an agricultural area located in Southern Belgium. The method adopted was ... [more ▼]

Data acquired from field campaign and hyperspectral airborne sensors were processed to determine the surface soil organic matter of an agricultural area located in Southern Belgium. The method adopted was based on a forward stepwise multiple linear regression analysis linking soil organic matter and hyperspectral data from the CASI-2 (Compact Spectrographic Imager-2) airborne sensor working in the visible and near infrared domain. The results were validated successfully from an independent set of sampling points. However, disturbing factors effects are shown on the relationship between soil organic matter and spectral reflectance. It is concluded that the hyperspectral remote sensing approach is promising for soil organic matter prediction but it will require more study to better take account on the disturbing factors affecting the relationship. [less ▲]

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See detailCan hyperspectral techniques improve estimates of carbon stocks in agricultural soils ?
Stevens, A.; van Wesemael, B.; Touré, Souleymane et al

in Proceedings of the Airborne imaging spectroscopy workshop : Belspo, Bruges 8 octobre 2004 (2004, October 08)

Soil organic carbon (SOC) represents one of the major pools in the global carbon cycle. However, fluxes of CO2 from soils into the atmosphere by respiration or inversely sequestration of CO2 through ... [more ▼]

Soil organic carbon (SOC) represents one of the major pools in the global carbon cycle. However, fluxes of CO2 from soils into the atmosphere by respiration or inversely sequestration of CO2 through photosynthesis and subsequent immobilisation in the form of humus are difficult to quantify. In principle changes in SOC stock over time reflect CO2 fluxes. The detection of these stock changes, however, require intensive sampling mainly due to the large spatial variability of SOC both within individual fields and larger units with similar soils and land use. The aim of this paper is to evaluate the potential of airborne-hyperspectral techniques using a CASI sensor and hand held Near Infrared Spectroscopy (NIRS) with an ASD spectrometer to conduct SOC inventories of individual parcels. During a field campaign in the Belgian Ardennes during Octobre 2003, more than 120 sites on a regular grid within 13 freshly ploughed fields were selected. At these sites, field spectra of the bare soil have been measured and samples from the topsoil were taken. SOC content (Walkley and Black), soil moisture and bulk density of these samples have been determined. As a first step, the soil reflectance has been transformed (log (1/R), Savitsky-Golay smoothing and derivative, gap derivative, moving average) in order to filter the spectral responses and to eliminate noise. Then, we used both stepwise and partial least square (PLS) regression analysis to relate these spectra to measured SOC contents. Regression models performed much better when the data were divided in two sub-groups representing different moisture conditions of the soil surface. These statistical model calibrations were validated on an independent data set. Standard Error of Prediction (SEP) ranged from 0.19 to 0.24 % carbon for the field spectra determined using the ASD depending on soil moisture of the surface layer. This is a little bit more than the reproducibility error inherent to the Walkley and Black analysis. Airborne CASI techniques performed less well mainly due to the narrow spectral range. Tests on airborne CASI+SASI hyperspectral data from a previous field campaign [1] showed better results. Overall, low bias allowed the use of spectral techniques to estimate population means with a high confidence level. The spectral techniques have a strong potential in determining changes in carbon tock change studies. The large within field variability of SOC content precludes the assessment, using conventional soil sampling, of SOC changes as a result of management (1 t C ha-1 yr-1) over a reasonable time period (5 years). Depending on the variance of the SOC content measured in the field ( 2 = 11-166 t C ha-1), we need 16-210 samples to detect a change. Since this number of samples is rarely available for individual fields, conventional sampling methods can only be used for larger spatial units containing many fields. In contrast, the airborne-hyperspectral technique and portable NIRS are able to supply these large amounts of data, and can thus improve the accuracy of SOC stock assessments of individual fields. This in turn will result in a smaller detection limit of SOC stock changes. [less ▲]

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See detailLe financement des cultes et de la laïcité en Belgique
Husson, Jean-François ULg

Conference (2004, October 08)

Présentation des canaux du financement public des cultes et de la laïcité organisée en Belgique, avec montants concernés et répartition entre courants convictionnels.

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See detailPharmacophore generation to design new leads for selective cyclooxygenase-2 inhibition
Michaux, C.; Julemont, F.; De Leval, X. et al

Poster (2004, October 07)

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See detailDupont, Dupont & Wagner
Pirenne, Christophe ULg

Conference (2004, October 07)

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See detailBiocompatible biodegradable polymer microparticles with entrapped peptide for wound treatment
Stashevskaya, K; Markvicheva, E; Dugina, T et al

Poster (2004, October 04)

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See detailSculpting Family Time
Onnis, Luigi; D'Amore, Salvatore ULg

Conference (2004, October 02)

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See detailThree telescope nuller based on multibeam injection into single-mode waveguide
Karlsson, Anders L; Wallner, Oswald; Perdigues Armengol, Josep M et al

in Traub, Wesley (Ed.) New Frontiers in Stellar Interferometry (2004, October 01)

Nulling interferometry of exo-solar planets requires as a minimum two telescopes, of which one is phase shifted by 180 degrees, such that the on-axis stellar object is cancelled, while the light from the ... [more ▼]

Nulling interferometry of exo-solar planets requires as a minimum two telescopes, of which one is phase shifted by 180 degrees, such that the on-axis stellar object is cancelled, while the light from the off-axis planet interferes constructively. Improvement of the nulling performance and the introduction of chopping leads to space interferometers of four or more telescopes and a separate spacecraft dedicated to beam recombination, as currently baselined for Darwin and TPF. It has recently been demonstrated that the stellar leaks mainly affects the integration times for near-by target stars [o,c]. Considering that there are only a few near-by targets and that the integrations times for each of these is short compared to that of distant stars, it appears advantageous to simplify the interferometer, by accepting higher levels of stellar leaks for near-by targets. A simple, chopping nulling interferometer can be obtained by adding one equal size telescope to the basic two telescope nulling interferometer. Modulation is obtained by applying time-varying phase-shifts to the beams before recombination, i.e. inherent modulation [d]. The recombination of 3 multi-axial beams is achieved by coupling into a single mode waveguide, leading to high modulation and coupling efficiencies, and a single focal plane [i]. Linear and circular telescope configurations are proposed and investigated, including a discussion on the need of a separate spacecraft for beam recombination. The associated transmission and modulation maps and efficiencies are calculated and discussed. [less ▲]

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See detailConvection-Oscillations Interaction in F-G Type Main Sequence Stars
Dupret, Marc-Antoine ULg; Grigahcène, A.; Garrido, R. et al

in SOHO 14 Helio- and Asteroseismology: Towards a Golden Future (2004, October 01)

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See detailSolar Model with CNO Revised Abundances
Montalban Iglesias, Josefa ULg; Miglio, Andrea ULg; Noels-Grötsch, Arlette ULg et al

in Danesy, D. (Ed.) Proceedings of the SOHO 14 / GONG 2004 Workshop (ESA SP-559). "Helio- and Asteroseismology: Towards a Golden Future" (2004, October 01)

Recent three-dimensional, NLTE analyses of the solar spectrum have shown a significant reduction in the C, N, O and Ne abundances leading to a Z/X ratio of the order of 0.0177. We have computed solar ... [more ▼]

Recent three-dimensional, NLTE analyses of the solar spectrum have shown a significant reduction in the C, N, O and Ne abundances leading to a Z/X ratio of the order of 0.0177. We have computed solar models with this new mixture in the OPAL opacity tables. The present He abundance we find seems rather consistent with the helioseismic value. However, the convective envelope is too shallow, and diffusion, even if it reduces the discrepancy, is not able to give the current value. We present some numerical experiments consisting in changing the diffusion velocities and/or the value of opacity at the base of the convective envelope. [less ▲]

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See detailTheoretical Instability Strips and Non-Adiabatic Photometric Observables for d Scut and g DOR Stars
Dupret, Marc-Antoine ULg; Grigahcène, A.; Garrido, R. et al

in SOHO 14 Helio- and Asteroseismology: Towards a Golden Future (2004, October 01)

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See detailThermal background fluctuations at 10 micron measured with VLTI/MIDI
Absil, Olivier ULg; Bakker, Eric; Schoeller, Markus et al

in Traub, Wesley; Monnier, John; Schöller, Markus (Eds.) New Frontiers in Stellar Interferometry (2004, October 01)

We present an experiment to measure the thermal background level and its fluctuations with the European Southern Observatory (ESO) Very Large Telescope Interferometer (VLTI). The Mid Infrared Instrument ... [more ▼]

We present an experiment to measure the thermal background level and its fluctuations with the European Southern Observatory (ESO) Very Large Telescope Interferometer (VLTI). The Mid Infrared Instrument (MIDI) operating between 8 and 12 micron was used in both dispersed and non-dispersed modes. By using an interferometric instrument, in non-interferometric mode, we probe the same optical path as can be expected for other infrared interferometric instruments, e.g. GENIE and MIDI itself. Most of the infrared thermal background detected with MIDI originates from the VLTI infrastructure. This can be attributed to the absence of a pupil re-imaging mirror. Only for a small region around the optical axis of the system the signal from the VLTI infrastructure can be considered small and the atmospheric background fluctuations can be characterized. The fluctuations of the thermal emission are described in terms of their power spectral densities (PSD). We have identified two regions in the PSD. For the low frequency range (0-10 Hz) the fluctuations are dominated by the Earth atmosphere. The slope of the log-log PSD is close to -1. For the high frequency (larger than 10 Hz) range the fluctuations are due to photon noise and the PSD flattens off. Many narrow peaks are present in the PSD. Peaks at 1 and 50 Hz occur in almost all data sets and are identified as the effects of the MIDI closed cycle cooler and the power lines respectively. Other peaks at 10 and 30 Hz, as well as peaks above 50 Hz, are assumed to be VLTI or MIDI-specific frequencies. [less ▲]

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See detailInfluence of atmospheric turbulence on the performance and design of GENIE
Absil, Olivier ULg; den Hartog, Roland; Gondoin, Philippe et al

in Traub, Wesley; Monnier, John; Schöller, Markus (Eds.) New Frontiers in Stellar Interferometry (2004, October 01)

Two competitive design studies for the Ground-based European Nulling Interferometer Experiment (GENIE) have been initiated by the European Space Agency and the European Southern Observatory in November ... [more ▼]

Two competitive design studies for the Ground-based European Nulling Interferometer Experiment (GENIE) have been initiated by the European Space Agency and the European Southern Observatory in November 2003. The GENIE instrument will most probably consist of a two-telescope Bracewell interferometer, using the 8-m Unit Telescopes and/or the 1.8-m Auxiliary Telescopes of the VLTI, and working in the infrared L' band (3.5 - 4.1 microns). A critical issue affecting the overall performance of the instrument is its capability to compensate for the phase and intensity fluctuations produced by the atmospheric turbulence. In this paper, we present the basic principles of phase and intensity control by means of real-time servo loops in the context of GENIE. We then propose a preliminary design for these servo loops and estimate their performance using GENIEsim, the science simulation software for the GENIE instrument. [less ▲]

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See detailThe simulated detection of low-mass companions with GENIE
den Hartog, Roland H; Absil, Olivier ULg; Gondoin, Philippe A et al

in Traub, Wesley; Monnier, John; Schöller, Markus (Eds.) New Frontiers in Stellar Interferometry (2004, October 01)

The prime objective of GENIE (Ground-based European Nulling Interferometry Experiment) is to obtain experience with the design, construction and operation of an IR nulling interferometer, as a preparation ... [more ▼]

The prime objective of GENIE (Ground-based European Nulling Interferometry Experiment) is to obtain experience with the design, construction and operation of an IR nulling interferometer, as a preparation for the DARWIN / TPF mission. In this context, the detection of a planet orbiting another star would provide an excellent demonstration of nulling interferometry. Doing this through the atmosphere, however, is a formidable task. In this paper we assess the prospects of detecting with nulling interferometry on ESO's VLTI, low-mass companions in orbit around their parent stars. With the GENIE science simulator (GENIEsim) we can model realistic detection scenarios for the GENIE instrument operating in the VLTI environment, and derive detailed requirements on control-loop performance, IR background subtraction and the accuracy of the photometry calibration. We analyse the technical feasibility of several scenarios for the detection of low-mass companions in the L'-band. [less ▲]

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