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See detailPOX 186: the ultracompact blue compact dwarf galaxy reveals its nature
Doublier, V.; Kunth, D.; Courbin, F. et al

in Astronomy and Astrophysics (2000), 353

High resolution, ground based R and I band observations of the ultra compact dwarf galaxy POX 186 are presented. The data, obtained with the ESO New Technology Telescope (NTT), are analyzed using a new ... [more ▼]

High resolution, ground based R and I band observations of the ultra compact dwarf galaxy POX 186 are presented. The data, obtained with the ESO New Technology Telescope (NTT), are analyzed using a new deconvolution algorithm which allows one to resolve the innermost regions of this stellar-like object into three Super-Star Clusters (SSC). Upper limits to both masses (M ~ 10[SUP]5[/SUP] M[SUB]sun[/SUB]) and physical sizes (<=60pc) of the SSCs are set. In addition, and maybe most importantly, extended light emission underlying the compact star-forming region is clearly detected in both bands. The R-I color rules out nebular Halpha contamination and is consistent with an old stellar population. This casts doubt on the hypothesis that Blue Compact Dwarf Galaxies (BCDG) are young galaxies. based on observations carried out at NTT in La Silla, operated by the European Southern Observatory, during Director's Discretionary Time. [less ▲]

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See detailMalignant prolactinoma discovered by D2 receptor imaging.
Petrossians, Patrick ULg; de Herder, W.; Kwekkeboom, D. et al

in Journal of Clinical Endocrinology and Metabolism (2000), 85(1), 398-401

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See detailCytosine Deaminase Suicide Gene Therapy for Peritoneal Carcinomatosis
Bentires-Alj, M.; Hellin, A. C.; Lechanteur, Chantal ULg et al

in Cancer Gene Therapy (2000), 7(1), 20-6

Gene therapy is a novel therapeutic approach that might soon improve the prognosis of some cancers. We investigated the feasibility of cytosine deaminase (CD) suicide gene therapy in a model of peritoneal ... [more ▼]

Gene therapy is a novel therapeutic approach that might soon improve the prognosis of some cancers. We investigated the feasibility of cytosine deaminase (CD) suicide gene therapy in a model of peritoneal carcinomatosis. DHD/K12 colorectal adenocarcinoma cells transfected in vitro with the CD gene were highly sensitive to 5-fluorocytosine (5-FC), and a bystander effect could also be observed. Treating CD+ cells with 5-FC resulted in apoptosis as detected by terminal deoxynucleotidyltransferase-mediated deoxyuridine triphosphate nick-end labeling. In vitro, several human cell lines derived from ovarian or colorectal carcinomas, as well as the rat glioblastoma 9 L cell line, responded to CD/5-FC and showed a very strong bystander effect. 5-FC treatment of peritoneal carcinomatosis generated in syngeneic BDIX rats by CD-expressing DHD/K12 cells led to a complete and prolonged response and to prolonged survival. Our study thus demonstrated the efficacy of CD suicide gene therapy for the treatment of peritoneal carcinomatosis. [less ▲]

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See detailSpacer Compression for a tripple conductor bundle
Lilien, Jean-Louis ULg; Hansenne, Eric; Papailiou, Konstantin et al

in IEEE Transactions on Power Delivery (2000), 15(N°1), 236-241

Spacer compression analysis based on tests and proposed simple method

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See detailWorking memory, long-term memory and language processing : issues and future directions
Collette, Fabienne ULg; Van der Linden, Martial ULg; Poncelet, Martine ULg

in Brain & Language (2000), 71(1), 46-51

We examined different views of the relationships between working memory, long-term memory and language processing : working memory considered as a gateway between sensory input and long-term memory or ... [more ▼]

We examined different views of the relationships between working memory, long-term memory and language processing : working memory considered as a gateway between sensory input and long-term memory or rather as a workspace; working memory considered as not strictly tied to any particular cognitive system (and consequently viewed as separated from the language system) or rather as drawing on the operation and storage capacities of a subset of components involved in language processing. It is argued that functional imagery studies (along with neuropsychological researches) could contribute to decide between these conceptions. [less ▲]

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See detailAutoimmune pancreatitis mimicking cancer of the pancreas
Detry, Olivier ULg; Servais, Anne; Pestieau, S. R. et al

in Acta Gastro-Enterologica Belgica (2000, January), 63(1), 57

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See detailHepatic alveolar echinococcosis
Delbecque, Katty ULg; Hayette, Marie-Pierre ULg; Jeukens, Thierry ULg et al

in Acta Gastro-Enterologica Belgica (2000, January), 63(1), 1

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See detailAnalysis of a Voltage Instability Incident in the Greek Power System
Vournas, Costas; Manos, George; Kabouris, John et al

(2000, January)

The paper reports on a 1996 incident in the Greek power system that had all the characteristics of voltage instability and the subsequent analyses and countermeasures. Voltage stability analysis is ... [more ▼]

The paper reports on a 1996 incident in the Greek power system that had all the characteristics of voltage instability and the subsequent analyses and countermeasures. Voltage stability analysis is performed by both NTUA and ULg software tools that give identical simulation results. After the upgrades performed by PPC a considerable increase in the maximum power that can be fed to the Athens area is achieved. Finally, secure operation limits of the upgraded system are calculated. [less ▲]

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See detailParametric Study for the Creation of the Interface between Concrete and Repair Products
Courard, Luc ULg

in Materials and Structures (2000), 33

An analysis as large as possible presents factors acting when a repair system comes into contact with a concrete support. The appetency of the first one for the second is defined from the properties of ... [more ▼]

An analysis as large as possible presents factors acting when a repair system comes into contact with a concrete support. The appetency of the first one for the second is defined from the properties of the support and the new layer – essentially in its liquid phase – as well as from the environmental conditions. These properties are cited or explained for each material: roughness, porosity, superficial cohesion and interstitial water into concrete, nature and concentration of the binder, rigidity modulus, capillary succion for repair systems. The thermodynamic properties of the materials as well as transport mechanisms – diffusion, capillary succion – at the interface and roughness of the concrete support are particularly developed. A sequential flow sheet related to the parameters influencing the creation of the interface is proposed. [less ▲]

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See detailBenchmark cases for galloping with results obtained from wind tunnel facilities. Validation of a finite element model.
keutgen, Renaud; Lilien, Jean-Louis ULg

in IEEE Transactions on Power Delivery (2000), 15(N°1), 367-374

Wind tunnel galloping are made available with all data (aerodynamics, amplitudes) to check any model.

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See detailVerification of two versions of the challenge handshake authentication protocol (CHAP)
Leduc, Guy ULg

in Annales des Télécommunications = Annals of Telecommunications (2000), 55(1-2), 20-30

The challenge handshake authentication protocol, CHAP, is an authentication protocol intended for use primarily by hosts and routers that connect to a network server I in switched circuits or dial-up ... [more ▼]

The challenge handshake authentication protocol, CHAP, is an authentication protocol intended for use primarily by hosts and routers that connect to a network server I in switched circuits or dial-up lines. but might be applied to dedicated links as well. In this paper; we specify two versions of the protocol, using the formal language Lotos, and apply the Eucalyptus model-based verification tools to prove that the first version has a flaw: whereas the second one is robust to passive and active attacks. The paper is written bl a tutorial fashion with a strong emphasis oil the methodology used. The relative simplicity of the CHAP protocol allows one to include complete Lotos specifications and definitions of properties, so that the experiment can be reproduced easily. [less ▲]

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See detailPreventive and emergency transient stability control
Ernst, Damien ULg; Ruiz-Vega, Daniel; Pavella, Mania ULg

in Proceedings of the VII Symposium of Specialists in Electric Operational and Expansion Planning (SEPOPE 2000) (2000)

A unified approach to transient stability closed-loop control is presented. It relies on the general transient stability method called SIME, from which the Preventive and the Emergency SIMEs are derived ... [more ▼]

A unified approach to transient stability closed-loop control is presented. It relies on the general transient stability method called SIME, from which the Preventive and the Emergency SIMEs are derived. The Preventive SIME uses time-domain simulations of plausible contingencies prior to their occurrence, for the online power system monitoring from the control room. The Emergency SIME, on the other hand, uses real-time measurements, acquired on the system power plants after the actual occurrence of a contingency in order to appraise and trigger countermeasures indispensable for the system integrity. Despite fundamental differences in their design and objectives, the two approaches have also common features. This paper highlights main differences and similarities, and illustrates them on a realistic, large power system. The tradeoff between on-line preventive control and real-time emergency control is also assessed in terms of size of the involved countermeasures. [less ▲]

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See detailL'altération des bords de la tourbière active du Misten par l'exploitation de la tourbe pourrait dater du début du 14ième siècle
Hindryckx, Marie-Noëlle ULg; Streel, Maurice ULg

in Documents de la Station scientifique des Hautes-Fagnes (2000), 30(4), 95-101

Une étude récente (1999) de la végétation, de la variation du niveau de la nappe aquifère et des caractéristiques de la tourbe sous-jacente, à la périphérie de la tourbière active du Misten permet d ... [more ▼]

Une étude récente (1999) de la végétation, de la variation du niveau de la nappe aquifère et des caractéristiques de la tourbe sous-jacente, à la périphérie de la tourbière active du Misten permet d'entrevoir l'époque la plus probable d'exploitation de la tourbe dans la région de cette tourbière. Un calcul de la vitesse d'accumulation récente de la tourbe à différentes zones à la périphérie de la partie active de la tourbière a été effectué par des sondages de tourbe rapprochés et analysés finement au niveau palynologique. On constate que la vitesse d'accumulation de la tourbe varie selon les profils distants de 10m les uns des autres et que celle-ci diminue au fur et à mesure que l'on se rapproche du bord actuel de la tourbière active. A l'aide d'une datation au carbone 14, nous pouvons avancer que la date de l'altération du bord sud-est de la tourbière active du Misten a dû commencer vers 1330 AD (1170 + 160), soit bien antérieurement au creusement du fossé d'Eupen (1774), mais aussi bien avant les premières exploitations de tourbe connues dans les fagnes de Sourbrodt. [less ▲]

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See detailEducation pour le troisième millénaire : mes craintes, mes espoirs ... pour l’Université
Merenne-Schoumaker, Bernadette ULg

in Education-Formation (2000), (259), 18-19

Courte réflexion sur les défis de l'Université en termes de formation au début du XXIe siécle

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See detailPrognostic significance of increased baseline plasma troponin I levels in PTCA patients
Chapelle, Jean-Paul ULg; Legrand, Victor ULg; Gielen, Jacques

in Clinical Chemistry (2000), 46(suppl), 82

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See detailComparison of the stratus CS and Axsym analysers for determination of cardiac troponin I in plasma
Chapelle, Jean-Paul ULg; Aldenhoff, Marie-Claire ULg; Pierard, Luc ULg et al

in Acta Clinica Belgica. Supplementum (2000), (suppl.1), 14

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