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See detailInvasion intracellulaire des cellules non-phagocytaires par Staphylococcus aureus
Boulanger, Delphine; Bureau, Fabrice ULg; Lekeux, Pierre ULg

in Annales de Médecine Vétérinaire (2006), 150(1), 27-42

Intracellular invasion of Staphyloccocus aureus in nonphagocytic cells Staphylococcus aureus often causes chronic diseases. It is now believed that recurrence of these infections could be related to the ... [more ▼]

Intracellular invasion of Staphyloccocus aureus in nonphagocytic cells Staphylococcus aureus often causes chronic diseases. It is now believed that recurrence of these infections could be related to the ability of S. aureus to invade and persist within nonphagocytic cells. Adherence to eucaryotic cells is crucial for S. aureus to invade and persist within invasion and depends on interactions between bacterial fibronectin-binding proteins, fibronectin and the host cell fibronectin receptor, integrin alpha(5)beta(1). It is currently established that fibronectin acts as a bridging molecule. Penetration of S. aureus in host cells requires also activation of protein tyrosine kinases that mediate signal transduction and actin polymerization leading to cytoskeletal rearrangements. After internalization, S. aureus either remains in membrane-bound vacuoles or appears free in the cytoplasm. After bacterial proliferation, S. aureus induces host cell apoptosis or persist inside cells as small colony variants, which represent a less virulent subpopulation of S. aureus that grows slower. Although numerous in vitro and in vivo studies have demonstrated the ability of S. aureus to invade nonphagocytic cells, additional experiments have to be realized to understand the relevance of intracellular localization in vivo. [less ▲]

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See detailContribution to the knowledge of lichens in northern France
Diederich, Paul; Van Den Broeck, Dries; Ertz, Damien et al

in Bulletin de la Société des Naturalistes Luxembourgeois (2006), 106

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See detailUtilisation et évaluation du thésaurus belge 3BT adapté au Rwanda
De Jonghe, M.; Jamoule, M.; Porignon, Denis ULg

in Revue Médicale de Bruxelles (2006), 27

The Kigali university medical centre (CHUK) lacks visibility on its activities for many years. Institution management as well understanding the institution as the corner stone of the Rwandese health ... [more ▼]

The Kigali university medical centre (CHUK) lacks visibility on its activities for many years. Institution management as well understanding the institution as the corner stone of the Rwandese health system and reinforcement of its visibility are all health policy major issues. Nevertheless, to this point no such tool has been developed nor implemented. The objective is to assess the feasibility of the use of the thesaurus 3BT as data collection tool in a Rwandese health institution. In august 2005, the thesaurus 3BT (Belgian, bilingual, biclassified ICD-10/ICPC-2) adapted to the CHUK has been implemented. Main issues : encoding quality and thesaurus operationality. Qualitative analysis has been performed on 899 coding of which 16 empty. Low occurrences (! 0.2 %) of about 25 % of codings of clinical diagnosis show the need for using a thesaurus but also to upgrade it. Near 45 % of the empty codings could be fulfilled with a quick look to the original medical record. Some diagnoses are missing in the thesaurus 3BT. 66 % of which have similar concepts in the thesaurus although not identifiable by a lay person. Finally, a clinical data blind coding test by a doctor used to classifications and by a lay person used to code clinical diagnosis from medical records of the hospitalised patients shows an exact similarity in 70 % of the coding and a loss of coding precision in 20 %. No coding error has been identified at this time. In conclusion, operationality of the thesaurus is quite acceptable in this study. The thesaurus makes easy the coding of clinical diagnosis even by lay people. Quality of data is enough to be able to interpret the quantitative results of the coding process. This study has to be repeated on a wider basis. [less ▲]

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See detailLa recherche en Santé: Systèmes, acteurs et savoirs en République Démocratique du Congo
Porignon, Denis ULg; Hennart, Philippe; DRAMAIX, Michèle et al

in Civilisations (2006), LIV(1-2), 167-178

Research activities are part of the cooperation model developed by the Cemubac. The foundation for the research is based on strengthening the capacity of health systems and services resulting in the ... [more ▼]

Research activities are part of the cooperation model developed by the Cemubac. The foundation for the research is based on strengthening the capacity of health systems and services resulting in the improvement of care offered to communities. The research (quantitative and qualitative) has a high participatory dimension and was able to develop thanks to partnerships with professionals and beneficiaries. It relies heavily on the implication of national public staff trained specifically for this work and on long-term presence in the area. The work in Kivu has continued over the past fifteen years despite a deteriorating social, economic and security context. As an organism for acquiring knowledge, the Cemubac’s work in Kivu is primarily geared towards improving health services. [less ▲]

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See detailDynamics of Dowstream Entry in Postal Markets
Gautier, Axel ULg

in Crew, Michael; Kleindorfer, Paul (Eds.) Liberalization of the Postal and Delivery Sector (2006)

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See detailEcosystème de la vicimisation : le cas particulier du milieu scolaire
Born, Michel ULg; Gavray, Claire ULg

in Born, Michel; Kéfer, F.; Lemaître, A. (Eds.) Une criminologie de la tradition à l'innovation (2006)

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See detailEpi Info - Manuel d’utilisation
Donneau, Anne-Françoise ULg

Learning material (2006)

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See detailDepth-integrated flow modelling taking into account bottom curvature
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Journal of Hydraulic Research (2006), 44(6), 787-795

Successfully modelling flows over a spillway and on strongly vertically curved bottoms is a challenge for any depth-integrated model. This type of computation requires the use of axes properly inclined ... [more ▼]

Successfully modelling flows over a spillway and on strongly vertically curved bottoms is a challenge for any depth-integrated model. This type of computation requires the use of axes properly inclined along the mean flow direction in the vertical plane and a modelling of curvature effects. The proposed generalized model per-forms such computations by means of suitable curvilinear coordinates in the vertical plane, leading to a fully integrated approach. This means that the flows in the upstream reservoir, on the spillway, in the stilling basin and in the downstream river reach are all handled in a single simulation. The velocity profile is generalized in comparison with the uniform one usually assumed in the classical shallow water equations. The pressure dis-tribution is modified as a function of the bottom curvature and is thus not purely hydrostatic. Representative test cases, as well as the application of the extended model to the design of a large hydraulic structure in Bel-gium, lead to satisfactory validation results. [less ▲]

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See detailModave/Modave : fouille dans l'éperon barré au lieu-dit "Rocher du Vieux Château" à Pont-de-Bonne
Delye, Emmanuel ULg

in Chronique de l'Archéologie Wallonne (2006), 13

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See detailExplicit formula for the natural and projectively equivariant quantization
Radoux, Fabian ULg

in Letters in Mathematical Physics (2006), 78

In [Prog Theor Phys Suppl 49(3):173–196, 1999], Lecomte conjectured the existence of a natural and projectively equivariant quantization. In [math.DG/0208171, Submitted], Bordemann proved this existence ... [more ▼]

In [Prog Theor Phys Suppl 49(3):173–196, 1999], Lecomte conjectured the existence of a natural and projectively equivariant quantization. In [math.DG/0208171, Submitted], Bordemann proved this existence using the framework of Thomas–Whitehead connections. In [Lett Math Phys 72(3):183–196, 2005], we gave a new proof of the same theorem thanks to the Cartan connections. After these works, there was no explicit formula for the quantization. In this paper, we give this formula using the formula in terms of Cartan connections given in [Lett Math Phys 72(3):183–196, 2005]. This explicit formula constitutes the generalization to any order of the formulae at second and third orders soon published by Bouarroudj in [Lett Math Phys 51(4):265–274, 2000] and [C R Acad Sci Paris Sér I Math 333(4):343–346, 2001]. [less ▲]

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See detailGuide pratique sur la gestion des déchets ménagers et des sites d'enfouissement technique dans les pays du Sud
Hiligsmann, Serge ULg; Lardinois, M.; Diabate, S. I. et al

Book published by Institut de l'Energie et de l'Environnement de la Francophonie (IEPF) (2006)

This book describes the general guidelines for waste and landfill management, especially for developing countries. It contains four chapters. Ch. 1 describes waste management in developing countries ... [more ▼]

This book describes the general guidelines for waste and landfill management, especially for developing countries. It contains four chapters. Ch. 1 describes waste management in developing countries (waste composition, production and harvesting modes; landfills characteristics; valorisation). Ch. 2 describes environmental aspects of waste management (biodegradation phenomenons; bioreactor-like landfill management; environmental impacts; investigation of biological activity of landfill in developing countries). Ch. 3 describes the general guidelines for controlled landfill (investigations for site location; landfill construction under wet and dry climates; landfill management and monitoring; financial aspects). Ch. 4 synthesizes the social and economical aspects of waste and landfill management and describes some best practices for harvesting, valorisation, and disposal of MSW) [less ▲]

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See detailPlasminogen activator inhibitor type I (PAI-1) controls bone marrow-dependent and independent vascularization
Jost, M.; Maillard, Catherine ULg; Lambert, Vincent ULg et al

in Acta Clinica Belgica (2006), 61(2, MAR-APR), 87

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See detailEndocrinology of pregnancy in the cow: embryonic signals, placental hormones and proteins
Ayad, A.; Melo de Sousa, Noelita ULg; Hornick, Jean-Luc ULg et al

in Annales de Médecine Vétérinaire (2006), 150(4), 212-226

The development, the establishment and the embryonic survival at early stages of gestation are depending on an intimate dialogue between the embryo and his mother. For the embryo part, it is especially ... [more ▼]

The development, the establishment and the embryonic survival at early stages of gestation are depending on an intimate dialogue between the embryo and his mother. For the embryo part, it is especially the trophoblast, or the future placenta, which plays a key role in initializing pregnancy. The placenta emits many signals of various chemical natures ( steroids, prostaglandins, peptides, proteins), some of them, e. g. the interferon tau, determine the maintenance of the corpus luteum at the beginning of gestation. Until now, although having raised many speculations, the earliest of these signals were not identified in peripheral circulation. Consequently, they cannot be used as a pregnancy diagnosis or to indicate embryonic mortality. However, since the eighties, the specific proteins "associated with pregnancy", produced by the trophoblastic cells are used as tool for breeding management. Most of these molecules are present in peripheral circulation. In this review, we will describe the major mechanisms associated with the maternal recognition of the gestation and their possible applications as pregnancy diagnosis tool in the cow. [less ▲]

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See detailSheep do have opinions
Despret, Vinciane ULg

in Latour Bruno, Weibel Peter (Ed.) Making Things Public. Atmospheres of Democracy (2006)

For the past few years the inhabitants of a hamlet on the outskirts of the village of Ingleton in Yorkshire, England, have been witnessing a strange exercise every morning. A woman, said to have been one ... [more ▼]

For the past few years the inhabitants of a hamlet on the outskirts of the village of Ingleton in Yorkshire, England, have been witnessing a strange exercise every morning. A woman, said to have been one of the most renowned primatologists in the English-speaking world, spends her day in a field in front of her house, observing animals that she has put there. As she did during her many years of field work in Africa studying apes, primatologist Thelma Rowell patiently notes all the movements, anecdotes and tiny events making up the daily social life of the animals to which she is currently devoting her time. Admittedly, these animals are different to the ones she was used to spending time with: the relations are not characterized by the same intensity, the behaviors are peculiar to the species, the communication does not always pass by the same channels, and the events seem to take place at another pace. But as far as their social expertise is concerned, these animals are certainly on a par with apes. [less ▲]

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See detailL'étymologie de cramique
Boutier, Marie-Guy ULg

in Revue Belge de Philologie et d'Histoire (2006), 84

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See detailA northern glacial refugium for bank voles (Clethrionomys glareolus).
Kotlìk, Petr; Deffontaine Deurbroeck, Valérie ULg; Mascheretti, Silvia et al

in Proceedings of the National Academy of Sciences of the United States of America (2006), 103(40), 14860-14864

There is controversy and uncertainty on how far north there were glacial refugia for temperate species during the Pleistocene glaciations and in the extent of the contribution of such refugia to present ... [more ▼]

There is controversy and uncertainty on how far north there were glacial refugia for temperate species during the Pleistocene glaciations and in the extent of the contribution of such refugia to present-day populations. We examined these issues using phylogeographic analysis of a European woodland mammal, the bank vole (Clethrionomys glareolus). A Bayesian coalescence analysis indicates that a bank vole population survived the height of the last glaciation (≈25,000–10,000 years B.P.) in the vicinity of the Carpathians, a major central European mountain chain well north of the Mediterranean areas typically regarded as glacial refugia for temperate species. Parameter estimates from the fitted isolation with migration model show that the divergence of the Carpathian population started at least 22,000 years ago, and it was likely followed by only negligible immigration from adjacent regions, suggesting the persistence of bank voles in the Carpathians through the height of the last glaciation. On the contrary, there is clear evidence for gene flow out of the Carpathians, demonstrating the contribution of the Carpathian population to the colonization of Europe after the Pleistocene. These findings are consistent with data from animal and plant fossils recovered in the Carpathians and provide the clearest phylogeographic evidence to date of a northern glacial refugium for temperate species in Europe. [less ▲]

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See detailStanding waves in the FitzHugh-Nagumo model of cardiac electrical activity.
Dauby, Pierre ULg; Desaive, Thomas ULg; Croisier, H. et al

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2006), 73(2 Pt 1), 021908

When excitable media are submitted to appropriate time dependent boundary conditions, a standing wavelike pattern can be observed in the system, as shown in recent experiments. In the present analysis ... [more ▼]

When excitable media are submitted to appropriate time dependent boundary conditions, a standing wavelike pattern can be observed in the system, as shown in recent experiments. In the present analysis, the physical mechanism explaining the occurrence of such space-time patterns is shown to be a competition between Ohmic diffusion and an action potential propagation across the system, coupled with the existence of refractory states for excitable media. [less ▲]

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