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See detailMesenchymal stromal cell therapy in conditions of renal ischaemia/reperfusion.
Erpicum, Pauline; Detry, Olivier; Weekers, Laurent et al

in Nephrology Dialysis Transplantation (2014)

Acute kidney injury (AKI) represents a worldwide public health issue of increasing incidence, with a significant morbi-mortality. AKI treatment mostly relies on supportive manoeuvres in the absence of ... [more ▼]

Acute kidney injury (AKI) represents a worldwide public health issue of increasing incidence, with a significant morbi-mortality. AKI treatment mostly relies on supportive manoeuvres in the absence of specific target-oriented therapy. The pathophysiology of AKI commonly involves ischaemia/reperfusion (I/R) events, which cause both immune and metabolic consequences in renal tissue. Similarly, at the time of kidney transplantation (KT), I/R is an unavoidable event which contributes to early graft dysfunction and enhanced graft immunogenicity. Mesenchymal stromal cells (MSCs) represent a heterogeneous population of adult, fibroblast-like multi-potent cells characterized by their ability to differentiate into tissues of mesodermal lineages. Because MSC have demonstrated immunomodulatory, anti-inflammatory and tissue repair properties, MSC administration at the time of I/R and/or at later times has been hypothesized to attenuate AKI severity and to accelerate the regeneration process. Furthermore, MSC in KT could help prevent both I/R injury and acute rejection, thereby increasing graft function and survival. In this review, summarizing the encouraging observations in animal models and in pilot clinical trials, we outline the benefit of MSC therapy in AKI and KT, and envisage their putative role in renal ischaemic conditioning. [less ▲]

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See detailMesenchymal stromal cells : a new tool against graft-versus-host disease ?
Baron, Frédéric ULg; Storb, Rainer

in Biology of Blood & Marrow Transplantation (2012), 18(6), 822-840

Mesenchymal stromal cells (MSCs) represent a heterogeneous subset of multipotent cells that can be isolated from several tissues including bone marrow and fat. MSCs exhibit immunomodulatory and anti ... [more ▼]

Mesenchymal stromal cells (MSCs) represent a heterogeneous subset of multipotent cells that can be isolated from several tissues including bone marrow and fat. MSCs exhibit immunomodulatory and anti-inflammatory properties that prompted their clinical use as prevention and/or treatment for severe graft-versus-host disease (GVHD). Although a number of phase I-II studies have suggested that MSCs infusion was safe and might be effective for preventing or treating acute GVHD, definitive proof for their efficacy remains lacking thus far. Multicenter randomized studies are ongoing to more precisely assess the impact of MSCs infusion on GVHD prevention/treatment, whereas further research is performed in vitro and in animal models with the aims of determining the best way to expand MSCs ex vivo as well as the most efficient dose and schedule of MSCs administration. After introducing GVHD, MSC biology, and results of MSCs infusion in animal models of allogeneic hematopoietic cell transplantation, this article reviews the results of the first clinical trials investigating the use of MSCs infusion as prevention or treatment of GVHD. [less ▲]

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See detailMesenteric Doppler Blood Flow Velocities in Pre-Operative Infants with Transposition of the Great Arteries
Campbell, Morag; Rigo, Vincent ULg; Robertson, Murray

in Pediatric Research (2003, April), 53(4 Part 2/2), 386

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See detailMesh Enrichment with Spectral Band and Interface Finite Elements for the Modelling of the Shear Band Localisation
Charlier, Robert ULg; Wang, XiaoChuan; Pierry, Joelle

in Proc. of the 8th Int. Conf. of the Int. Ass. for Computer Methods and Advances in Geomechanics (1994, May)

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See detailMesh influence on cardiovascular simulations
Sauvage, E.; Marchandise, E.; Remacle, J.-F. et al

in Proceedings of the 5th international conference on Advanced COmputational Methods in ENgineering (ACOMEN 2011) (2011, November)

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See detailMesh Updating in Eulerian-Lagrangian FEM for Large Deformation Analysis
Ponthot, Jean-Philippe ULg; MINCKE, J. C.

in Actes du 2° Colloque Belge de Mécanique Théorique et Appliquée (1990)

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See detailA mesh-shape sensitivity synthesis for boundary-formulated shape optimal design
Hwang, Yearn-Tzuo; Fleury, Claude ULg

in The 34th AIAA/ASME/ASCE/AHS/ASC structures, structural dynamics, and materials conference AIAA/ASME, adaptive structures forum : April 19-22, 1993/La Jolla, CA (1993)

This paper presents a sequential mesh-shape sensitivity synthesis with which only the structural boundary information is required during the shape optimization process. Large structural shape reformation ... [more ▼]

This paper presents a sequential mesh-shape sensitivity synthesis with which only the structural boundary information is required during the shape optimization process. Large structural shape reformation as well as the minimum mesh distortion can be obtained. This method avoids the repetitive remeshing procedure by employing an optimization driven mesh smoothing algorithm proposed by Hwang and Fleury. It eliminates the need to explicitly define the grid point peturbations for the shape sensitivity by extracting the mesh sensitivity from the optimized mesh. Since only the structural boundary is involved in the shape optimization scheme, the method used to create the finite element mesh is not important as long as the element topology for the model is valid. Examples are provided to show the effectiveness of this approach. [less ▲]

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See detailThe Mesolithic of the Belgian Ardennes
Otte, Marcel ULg; Noiret, Pierre ULg

in Kind, Claus-Joachim (Ed.) After the Ice Age. Settlements, subsistence and social development in the Mesolithic of Central Europe (2006)

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See detailThe Mesolithic of Trou Al'Wesse Cave (Belgium) in Regional Context
Miller, Rebecca ULg; Stewart, John; Zwyns, Nicolas et al

in Oosterbeek, Luis; Fidalgo, Claudia (Eds.) Miscellania, Volume 47 of the Proceedings of the 15th UISPP Congress (2011)

Recent excavations at the cave site of Trou al'Wesse (Modave, Belgium) have yielded significant new data concerning the Mesolithic occupations at the site that contribute to the understanding of the ... [more ▼]

Recent excavations at the cave site of Trou al'Wesse (Modave, Belgium) have yielded significant new data concerning the Mesolithic occupations at the site that contribute to the understanding of the chronology and environmental context of the Belgian Mesolithic. We present the results of the analyses of lithic and faunal assemblages, site taphonomy and spatial distribution, and discuss the relationship of the site with other Mesolithic sites in Belgium. [less ▲]

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See detailLe Mésolithique du Bassin pannonien et la formation du Rubané
Otte, Marcel ULg; Noiret, Pierre ULg

in Anthropologie (L') (2001), 105(3, JUL-SEP), 409-419

The LBK appears as the result of acculturation of local Mesolithic Populations, beginning in the Pannonian Basin following a trans-Balkan colonisation. Economy, architecture and ceramic proceed from an ... [more ▼]

The LBK appears as the result of acculturation of local Mesolithic Populations, beginning in the Pannonian Basin following a trans-Balkan colonisation. Economy, architecture and ceramic proceed from an adaptation to local means, which explains the chronological disjunction between acculturation and geographic expansion. The whole is placed within a context already Indo-European, since the Late Palaeolithic. (C) 2001 Editions scientifiques et medicales Elsevier SAS. [less ▲]

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See detailLe Mésolithique récent du Trou Al’Wesse (comm. de Modave, Prov. de Liège) Découverte de tessons de type non rubanés ou «Bereitkeramiek»
Miller, Rebecca ULg; Otte, Marcel ULg; Stewart, John

in Notae Praehistoricae (2009), 29

On the terrace of the site of Trou Al'Wesse, commun of Modave (province of Liège, Belgium), stratum 4b-δ, excavated in 2008, has been attributed to the Late Mesolithic. Ceramic sherds of La Hoguette type ... [more ▼]

On the terrace of the site of Trou Al'Wesse, commun of Modave (province of Liège, Belgium), stratum 4b-δ, excavated in 2008, has been attributed to the Late Mesolithic. Ceramic sherds of La Hoguette type have been recovered from near the top of this Mesolithic context, which contains lithic artifacts, a charcoal lens, wild fauna including an aurochs astragalus with cutmarks, and a sawn red deer crown antler. LBK sherds of the type found in overlying stratum 4a, are absent in facies 4b-δ. This is the first time that La Hoguette sherds have been found instratified context associated with material that can be radiometrically dated, and also the first time that such sherds have been discovered south of the Meuse and Sambre in Belgium. New dates from this stratum contribute to placing these sherds and the other elements in chronological context. [less ▲]

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See detailMeson modes in Nuclear Matter in the Nambu – Jona-Lasinio Model
Jaminon, Martine ULg; Mendez Galain, Ramon; Stassart, Pierre

Conference (2001)

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See detailMesopelagic C mineralization at the Southern Ocean’s scale
Jacquet, S.; Dehairs; Elskens, M. et al

Conference (2007, April)

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See detailMesoporosity of Zeolite Y – 3D Quantitative Study by Image Analysis of Electron Tomograms
Zecevic, Jovana; Gommes, Cédric ULg; friedrich, Heiner et al

in Angewandte Chemie (International ed. in English) (2012), 51

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See detailMesoporous amorphous tungsten oxide electrochromic films: a Raman analysis of their good switching behavior
Chatzikyriakou, Dafni ULg; Krins, Natacha ULg; Gilbert, Bernard ULg et al

in Electrochimica Acta (in press)

The intercalation and de-intercalation of lithium cations in electrochromic tungsten oxide thin films are significantly influenced by their structural and surface characteristics. In this study, we ... [more ▼]

The intercalation and de-intercalation of lithium cations in electrochromic tungsten oxide thin films are significantly influenced by their structural and surface characteristics. In this study, we prepared two types of amorphous films via the sol-gel technique: one dense and one mesoporous in order to compare their response upon lithium intercalation and de-intercalation. According to chronoamperometric measurements, Li+ intercalates/de-intercalates faster in the mesoporous film (24s/6s) than in the dense film (48s/10s). The electrochemical measurements (cyclic voltammetry and chronoamperometry) also showed worse reversibility for the dense film compared to the mesoporous film, giving rise to important Li+ trapping and remaining coloration of the film. Raman analysis showed that the mesoporous film provides more accessible and various W-O surface bonds for Li+ intercalation. On the contrary, in the first electrochemical insertion and de-insertion in the dense film, Li+ selectively reacts with a few surface W-O bonds and preferentially intercalates into pre-existing crystallites to form stable irreversible LixWO3 bronze. [less ▲]

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See detailMesoporous Lithium Vanadium Oxide as Thin Film Electrode for Lithium-Ion Batteries: Comparison between Direct Synthesis of LiV2O5 and Electrochemical Lithium Intercalation in V2O5
Caes, Sébastien ULg; Arrebola, Jose Carlos; Krins, Natacha ULg et al

in Journal of Materials Chemistry A (2014), 2

Research in the field of lithium-ion batteries favours electrode materials with high surface area. In this context, this paper is dedicated to mesoporous thin films (MTFs) and compares the electrochemical ... [more ▼]

Research in the field of lithium-ion batteries favours electrode materials with high surface area. In this context, this paper is dedicated to mesoporous thin films (MTFs) and compares the electrochemical performance of g-LiV2O5 MTFs with post-synthesis electrochemical lithium intercalation in a-V2O5 MTFs. Formation of vanadium oxide MTFs by soft-chemistry is notoriously difficult. However, it is shown that wormlike vanadium oxide (V–O) and lithium vanadium oxide (Li–V–O) MTFs can be obtained on silicon substrates by a direct sol–gel soft-templating route (evaporation-induced micelle assembly) using a polystyrene-block-poly(ethylene oxide) (PS-b-PEO) structuring agent. Heat treatment for 1 minute at 400 C (Li–V–O system) or 30 minutes at 350 C (V–O system) leads to the crystallization of g-LiV2O5 or a-V2O5, respectively. These calcination conditions ensure the degradation of the structuring agent while preventing the collapse of the mesostructure, yielding MTFs with pore size diameter in the 30–35 nm range. Using the same set of synthesis conditions, films can be deposited on conductive glass substrates for electrochemical investigation: the a-V2O5 films display better specific capacities, while the cyclability is good for both compositions, even at a current density as high as 30 C-rate. [less ▲]

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See detailMesoporous SiO2 thin films containing ZnO photoluminescent nanoparticles. Simultaneous SAXS / WAXS / Ellipsometry investigations
Krins, Natacha ULg; Bass, J. D.; Julián-López, B. et al

in Journal of Materials Chemistry (2011), 21

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See detailMesoporous TiO2 thin films for photovoltaic applications
Dewalque, Jennifer ULg; Mathieu, Xavier; Decroly, André et al

Poster (2008, August)

Thin films of nanocrystalline, mesostructured titanium dioxide are very promising materials to build low cost and efficient photovoltaic devices. TiO2 present a high chemical stability and electronic ... [more ▼]

Thin films of nanocrystalline, mesostructured titanium dioxide are very promising materials to build low cost and efficient photovoltaic devices. TiO2 present a high chemical stability and electronic properties such as photo-induced electronic transfer properties associated with the anatase phase. For many applications, highly porous nanostructured thin films with accessible pores are preferable to dense ones. Indeed, high accessible porosity leads to high surface area increasing the electron transfer surface. [less ▲]

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