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See detailSteel Hollow Columns filled with self compacting Concrete under Fire Conditions
Dotreppe, Jean-Claude ULg; Chu, Thi Binh; Franssen, Jean-Marc ULg

in The third International Congress and Exhibition - Proceedings Disc (2010)

Concrete filled steel hollow section (CFSHS) columns can carry important loads and therefore are used extensively in the construction of high-rise buildings. Steel hollow sections are filled usually with ... [more ▼]

Concrete filled steel hollow section (CFSHS) columns can carry important loads and therefore are used extensively in the construction of high-rise buildings. Steel hollow sections are filled usually with ordinary concrete, but filling problems may arise with small cross sections and dense reinforcement or hollow sections (tubes) surrounding another profile (tube or H section) when the distance between the two profiles is small. For such a configuration, self-compacting concrete can be recommended. Ten columns filled with self-compacting concrete embedding another steel profile have been tested in the Fire Engineering Laboratory of the University of Liege - Belgium. The non linear finite element software SAFIR developed at the University of Liege has been used to simulate the thermal and structural behavior under fire conditions. A good agreement between numerical and experimental results has been obtained. This shows that SAFIR code can predict well the behavior of CFSHS columns and that the properties of self-compacting concrete at high temperatures can be considered to be the same as those of ordinary concrete. Another purpose of this study was to give practical tools to consulting engineers. [less ▲]

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See detailLa chondroitine sulfate stimule la production des facteurs anti angiogéniques TSP-1 et VEGI par les synoviocytes arthrosiques : un nouveau mécanisme d’action pour cette molécule.
Mathy, Marianne ULg; Lambert, Cécile ULg; Dubuc, Jean Emile et al

in Revue du Rhumatisme (2010), 77

La chondroïtine sulfate (CS), la glucosamine sulfate (GS), la glucosamine HCl (GH) et l’acide hyaluronique (AH) sont des anti-arthrosiques symptomatiques d’action lente (AASAL) dont l’utilisation est ... [more ▼]

La chondroïtine sulfate (CS), la glucosamine sulfate (GS), la glucosamine HCl (GH) et l’acide hyaluronique (AH) sont des anti-arthrosiques symptomatiques d’action lente (AASAL) dont l’utilisation est recommandée dans le traitement de l’arthrose. Les mécanismes d’action de ces molécules demeurent mal compris. Notre étude a comme objectif d’étudier les effets de ces molécules sur la production de médiateurs impliqués dans l’angiogenèse de la membrane synoviale (MS) arthrosique [less ▲]

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See detailMaths & Manips
Henry, Valérie ULg; Guissard, Marie-France; Lambrecht, Pauline

in Losanges (2010), 7

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See detailContractuele aansprakelijkheid in het bouwrecht. Rechtspraakoverzicht 1999-2009
Kohl, Benoît ULg; Hoebeeck, Maarten

in Tijdschrift voor Bouwrecht en Onroerend Goed (2010), (3), 124-137

Examen de la jurisprudence récente relative à la responsabilité contractuelle en droit de la construction.

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See detailA mid-size city and IYA09: a case study
Nazé, Yaël ULg

Poster (2010)

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See detailHeat treatment of pigmented materials from es-Skhul (ca. 100 000 B.P., Israël)
Salomon, Hélène ULg; Vignaud, Colette; Coquinot, Yvan et al

Poster (2010)

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See detailTLC UE-CAN como un instrumento para la integración regional latinoamericana
Parra Santamaria, Lusmiriam Andrea ULg

Diverse speeche and writing (2010)

This communication is about the Free Trade Agreements FTA (in general) and the way they can be used as political instruments. For the specific case of this FTA EU-ACN, our approach shows that the objectif ... [more ▼]

This communication is about the Free Trade Agreements FTA (in general) and the way they can be used as political instruments. For the specific case of this FTA EU-ACN, our approach shows that the objectif of using it for stimulating regional integration in latinamerica has not been got. In contrast, its negociation has been a factual cause of regional dispersion for the Andean countries. [less ▲]

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See detailA brief history of software resources for qualitative analysis
Lejeune, Christophe ULg

in Reber, Bernard; Brossaud, Claire (Eds.) Digital Cognitive Technologies. Epistemology and Knowledge Society (2010)

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See detailDes reins pas comme les autres...
Detry, Olivier ULg

E-print/Working paper (2010)

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See detailM-type channels selectively control bursting in rat dopaminergic neurons
Drion, Guillaume ULg; Bonjean, Maxime; Waroux, Olivier ULg et al

in European Journal of Neuroscience (2010), 31

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See detailModeling of the longitudinal modulation of the Io interaction
Hess, S.; Bonfond, Bertrand ULg; Delamere, P. A. et al

Poster (2010)

The Io interaction with the Jovian magnetosphere is the best known case of moon-magnetosphere interaction. It leads to bright emissions from radio to UV, which are mostly due to the acceleration of ... [more ▼]

The Io interaction with the Jovian magnetosphere is the best known case of moon-magnetosphere interaction. It leads to bright emissions from radio to UV, which are mostly due to the acceleration of electrons by Alfvén waves along the magnetic field lines passing Io. We previously presented a model of the electron acceleration by the Iogenic Alfvén waves, which explains the average brightness of the emissions. We now present a study of the modulation of the Io-magnetosphere interaction with longitude, and compare our results with the observed brightness modulation of the auroral emissions. This study highlights how the satellite-magnetosphere interactions depend on the variation of the magnetic field, the equatorial plasma density,... A new model of the Jovian internal magnetic field, giving an accurate description of the longitudinal modulations of the Jovian magnetic field has been computed for this study, and is also presented. [less ▲]

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See detailInfluence of homogenization and drying on the thermal stability of microfibrillated cellulose
QUIEVY, N.; Jacquet, Nicolas ULg; SCLAVONS, M. et al

in Polymer Degradation and Stability (2010), 95

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See detailPreliminary experiments: High-energy alpha PIXE in archaeometry
Dupuis, Thomas ULg; Chene, Grégoire ULg; Mathis, François ULg et al

in Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (2010), 268(11-12), 1911-1915

This paper describes the work realized at the "Centre Europeen d'Archeometrie" to highlight the utility of high-energy alpha PIXE in the particular field of archaeometry and to introduce the developments ... [more ▼]

This paper describes the work realized at the "Centre Europeen d'Archeometrie" to highlight the utility of high-energy alpha PIXE in the particular field of archaeometry and to introduce the developments done and to be clone to complete the knowledge of high-energy alpha PIXE. It starts with the comparison of the yield and the noise background between several alpha particle beams and the comparison between alpha particle and proton beams on different thick and thin references. After, this paper depicts the developments done at the "Institut de Physique Nucleaire, Atomique et Spectroscopie" to perform such high-energy experiments, first on standards and later on cultural heritage objects. Moreover, it introduces the problematics of such beams for the quantification in PIXE by the intermediary of the knowledge of the ionization and X-ray production cross-sections and also the developments done to answer to this serious lack in the databases. (C) 2010 Elsevier B.V. All rights reserved. [less ▲]

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See detailSpontaneous and granulocyte–colony-stimulating factor-enhanced marrow response and progenitor cell mobilization in mice after myocardial infarction.
Delgaudine, Marie ULg; Gothot, André ULg; Beguin, Yves ULg

in Cytotherapy (2010), 12(7), 909-18

BACKGROUND AIMS: Hematopoietic (HPC), mesenchymal (MPC) and/or endothelial (EPC) progenitor cells are being studied to repair the myocardium after acute or chronic ischemia. We examined marrow response to ... [more ▼]

BACKGROUND AIMS: Hematopoietic (HPC), mesenchymal (MPC) and/or endothelial (EPC) progenitor cells are being studied to repair the myocardium after acute or chronic ischemia. We examined marrow response to myocardial infarction (MI) and the ability of granulocyte-colony-stimulating factor (G-CSF) to enhance mobilization of HPC, MPC and EPC in peripheral blood (PB) and bone marrow (BM) of MI mice. METHODS: We induced MI in C57Bl/6 mice, while sham-operated (SO) animals were similarly operated on but without coronary artery ligation. Animals were treated with either saline or G-CSF, from day -5 to day +5 after MI or from day 0 to day +5. Progenitor cell numbers in PB and BM were evaluated by fluorescence-activated cell sorting (FACS) analysis and cell culture. RESULTS: White blood cells (WBC) decreased in BM and increased in PB after MI; G-CSF amplified this effect in BM but not in PB. HPC numbers decreased in BM after MI, while HPC and granulocyte-macrophage colony-forming units (GM-CFU) increased in PB only after G-CSF treatment, and more prominently so in MI than in SO mice. MPC and fibroblast-colony-forming units (F-CFU) as well as EPC were mobilized into the PB after MI and further after G-CSF treatment. Plasma troponin T concentrations decreased after G-CSF treatment. CONCLUSIONS: BM is globally affected by acute MI, but not simple body injury, with intense mobilization of marrow MPC and EPC into the PB but inhibition of HPC. Progenitor cell entry into the PB may be paralleled by depletion of their BM pools. G-CSF is required for HPC mobilization and enhances MPC and EPC entry into the PB. [less ▲]

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