References of "Paper published in a journal"
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See detailValidation of the Abbott Architect 25(OH)-vitamin D assay
CAVALIER, Etienne ULg; CARLISI, Ignazia ULg; BEKAERT, Anne-Catherine ULg et al

in Clinical Chemistry & Laboratory Medicine (2011), 49(s1), 418

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See detail69 speaker 3D DOSIMETRY SYSTEMS-GELS, EPIDS AND OTHERS
Duchateau, Michael; Verellen, D.; Depuydt, T. et al

in Radiotherapy & Oncology (2011), 99

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See detailLattice Boltzmann Simulation Code Optimization Based on Constant-time Circular Array Shifting
Dethier, Gérard ULg; de Marneffe, Pierre-Arnoul ULg; Marchot, Pierre ULg

in Procedia Computer Science (2011), 4

Lattice Boltzmann (LB) methods are a class of Computational Fluid Dynamics (CFD) methods for fluid flow simulation. LB simulation codes have high requirements regarding memory and computational power ... [more ▼]

Lattice Boltzmann (LB) methods are a class of Computational Fluid Dynamics (CFD) methods for fluid flow simulation. LB simulation codes have high requirements regarding memory and computational power: they may involve the update of several millions of floating point values thousands of times and therefore require several gigabytes of available memory and run for several days. Optimized implementations of LB methods minimize these requirements. An existing method based on a particular data layout and an associated implementation implying a constant time array shifting allows to reduce the execution time of LB simulations and almost minimize memory usage when compared to a naive implementation. In this paper, we show that this method can be further improved, both in memory usage and performances by slightly modifying the data layout and by using blocking in order to enhance data locality. [less ▲]

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See detailConstraining statistical-model parameters using fusion and spallation reactions
Mancusi, D.; Charity, R. J.; Cugnon, Joseph ULg

in European Physics Journal: Web of conferences (2011)

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See detailQuels enseignements tirer des données de délinquance auto-révélées ?
Gavray, Claire ULg

in Observatoire : Revue d'Action Sociale & Médico-Sociale les actes + (2011)

Les données de délinquance juvénile nous obligent à contrer le discours alarmiste, tout en ne banalisant pas les problèmes vécus/causés par une minorité de jeunes qui sont bien pris dans la spirale de la ... [more ▼]

Les données de délinquance juvénile nous obligent à contrer le discours alarmiste, tout en ne banalisant pas les problèmes vécus/causés par une minorité de jeunes qui sont bien pris dans la spirale de la délinquance, comme victime et comme auteur... [less ▲]

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See detailNew Results in Exclusive Hard Reactions
Pire, Bernard; Semenov-Tyan-Shanskiy, Kirill ULg; Szymanowski, Lech et al

in PoS - Proceedings of Science (2011), EPS-HEP2011

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See detailRelationship between PCB 153 and stable nitrogen in a Guiana dolphin (Sotalia guianensis) food weeb, Gunabara Bay, Brazil
Vidal, L. G.; Bisi, T. L.; Dorneles, P. R. et al

in Organohalogen Compounds (2011)

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See detailCharacterization of a new potential virulence factor of Microsporum canis, the secreted subtilisin Sub6
Mathy, Anne ULg; Baldo, Aline ULg; Salamin, K. et al

in Mycoses (2011), 54(suppl 2), 112-113

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See detailPotential mineral deficiencies for Ndama cattle grazing Urochloa sp. based tropical pastures in the Bas-Congo province of the Democratic Republic of Congo
Picron, Pascale ULg; Goubau, Amaury ULg; Lecomte, Thomas et al

in Advances in Animal Biosciences (2011), 2(2), 388

Artificial pastures are used to increase carrying capacity in the wet tropics by supplying higher quality forage (energy and protein) to the animals all year long. Sowing pastures is labour-intensive so ... [more ▼]

Artificial pastures are used to increase carrying capacity in the wet tropics by supplying higher quality forage (energy and protein) to the animals all year long. Sowing pastures is labour-intensive so to be profitable all other possible growth limiting factors, especially minerals, should be alleviated. We studied nutrients intake (energy, protein and minerals) in cattle grazing Urochloa sp. pastures in Western DRC. Three Urochloa ruziziensis and 3 U. decumbens pastures in Kolo-Fuma (Bas-Congo, DRC) were studied. Three Ndama steers and 3 cows grazing each pasture consecutively during the short rainy and dry seasons were followed by handplucking and samples were analysed for energy, crude protein and ash to calculate energy value (fodder units, FU) and digestible crude protein content (DCP) of the diets. NIRS was used on faeces to determine dry matter (DM) intake and ICP-AES to determine mineral content of the diets. Intake levels reached 66 ± 4.3 g kg-1LW0.75, nutritive value of forage was 0.701 ± 0.036 FU and 4.78 ± 1.04 % DCP, allowing daily weight gains > 550 g for steers and > 350 g for cows. P, Ca, Mg, K, Mn & Fe were provided above requirements by the pasture. Na, Cu and Zn were deficient, especially during the short dry season for Cu and Zn. U. ruziziensis pastures tended to provide more minerals, especially during the rainy season. A mineral supplement providing Na, Cu and Zn is required to reach the daily weight gains allowed by energy and protein supplies. The supplement could reasonably be similar for U. decumbens and U. ruziziensis pastures, but the dry season formula should provide more Cu and Zn than the rainy season formula [less ▲]

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See detailOne-loop finite corrections to seesaw neutrino masses
Aristizabal Sierra, Diego ULg

in PoS - Proceedings of Science (2011)

In the standard seesaw model, finite corrections to the neutrino mass matrix arise from one-loop self-energy diagrams mediated by heavy neutrinos. We discuss the impact that these corrections may have on ... [more ▼]

In the standard seesaw model, finite corrections to the neutrino mass matrix arise from one-loop self-energy diagrams mediated by heavy neutrinos. We discuss the impact that these corrections may have on the different entries of the tree-level effective neutrino mass matrix, paying special attention to their dependence with the seesaw model parameters. We also briefly comment on the implications these corrections might have on low-energy neutrino observables. [less ▲]

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See detailPCBs versus PBDEs: how similar compounds can behave differently in harbour porpoises
Weijs, Liesbeth; Yang, R. S. H.; Das, Krishna ULg et al

in Organohalogen Compounds (2011)

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See detailModel-based cardiovascular monitoring of acute pulmonary embolism in porcine trials
Revie, JA; Stevenson, DJ; Chase, JG et al

in Critical Care (2011), 15 (Suppl 1)

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See detailMaternal transfer of PCBs, PBDEs and their hydroxylated metabolites in grey seal (Halichoerus grypus) from the Isle of May, Scotland
Vanden Berghe, Marie; Weijs, Liesbeth; Habran, Sarah ULg et al

in Organohalogen Compounds (2011)

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See detailOnline Sparse Bandit for Card Games
Lupien St-Pierre, David ULg; Louveaux, Quentin ULg; Teytaud, Olivier

in Advance in Computer Games (2011)

Finding an approximation of a Nash equilibria in matrix games is an important topic that reaches beyond the strict application to matrix games. A bandit algorithm commonly used to approximate a Nash ... [more ▼]

Finding an approximation of a Nash equilibria in matrix games is an important topic that reaches beyond the strict application to matrix games. A bandit algorithm commonly used to approximate a Nash equilibrium is EXP3. However, the solution to many problems is often sparse, yet EXP3 inherently fails to exploit this property. To the knowledge of the authors, there exist only an offline truncation to tackle such issue. In this paper, we propose a variation of EXP3 to exploit the fact that solution is sparse by dynamically removing arms; the resulting algorithm empirically performs better than previous versions. We apply the resulting algorithm to a MCTS program for the Urban Rivals card game. [less ▲]

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See detailExtension of the long-term total column time series of atmospheric methane above the Jungfraujoch station: analysis of grating infrared spectra between 1976 and 1989
Bader, Whitney ULg; Lejeune, Bernard ULg; Demoulin, Philippe ULg et al

in Geophysical Research Abstracts (2011), 13

Methane (CH4) is one of the most abundant greenhouse gases in the Earth’s atmosphere, with current mean volume mixing ratio close to 1800 ppb. Since methane has a global warming potential of 25 (100-yr ... [more ▼]

Methane (CH4) is one of the most abundant greenhouse gases in the Earth’s atmosphere, with current mean volume mixing ratio close to 1800 ppb. Since methane has a global warming potential of 25 (100-yr horizon) and an atmospheric lifetime of 12 years, the Kyoto Protocol has included it among the species to be regulated to limit global warming. Anthropogenic sources of methane are mainly energy production (coal and leaks) and agriculture while main natural sources are swamps and biomass waste. The main sink of methane is oxidation in the troposphere, primarily by reaction with the hydroxyl radical. Methane trends have exhibited significant changes during the last twenty-five years. For instance, long-term monitoring of its vertical total column above the high-altitude station of the Jungfraujoch (46.5°N, 8°E, 3580 m asl) has indeed allowed to derive column changes ranging from +0.72% in 1987-1988 to +0.14% in 1999-2000 (Zander et al., 2002), relative to 1988 and 2000, respectively. More recently and for the same site, Duchatelet et al. (2010) have even reported a significant slowdown of -0.02%/yr between years 2000 and 2005. This study also showed that since then, CH4 is on the rise again, at a rate close to +0.30%/yr. While the numbers reported here above have been derived from the Fourier Transform Infrared (FTIR) data set starting in 1984, earlier pioneering observations have been collected at the Jungfraujoch since 1950, using grating spectrometers. During the 1958-1975 period, the main objectives has been the study of the solar photosphere in the visible and the near infrared and the publication of high-resolution solar atlases. From 1976 to 1989, narrow-band IR solar absorption observations achieving a spectral resolution of about 0.02 cm-1 have been recorded with the high-performance double-pass grating spectrometer. Analysis of these historical spectra provides a unique opportunity to extend the Jungfraujoch’s total column time series of important atmospheric gases, including methane, by nearly 10 years. The aim of this contribution is to present the inversion strategy adopted to derive CH4 from the grating spectra, using the SFIT-2 algorithm (v3.91) We will evaluate the impact of resolution, spectroscopic parameters (from the EU HYMN project -see www.knmi.nl/samen/hymn-, and from HITRAN 2004), atmospheric pressure and temperature profiles on the error budget. The 1976-1989 total column time series produced will be presented and critically discussed. In particular, we will identify and correct for possible biases between double-pass grating spectrometer measurements and more recent FTIR total columns. The harmonized and consolidated time series will be investigated to characterize the long-term trend of methane for the 1976-2010 time period. Comparisons with synthetic data produced by the CHASER 3-dimensional chemical transport model will also be presented and analyzed. [less ▲]

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See detailEfficacy of FDG PET/CT for diagnosing synchronous tumors and metastases in head and neck tumors : Initial results and evaluation.
MINON, AL.; DEMEZ, Pierre ULg; MOREAU, Pierre ULg et al

in Journal of Nuclear Medicine (The) (2011), 52(SUPPL), 1863

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See detailLong-expected! - First record of demosponge-type spicules in a Devonian stromatoporoid (Frasnian, Belgium).
Da Silva, Anne-Christine ULg; Kershaw, Stephen; Boulvain, Frédéric ULg et al

in Kölner Forum für Geologie und Paläontologie (2011), 19

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See detailFrom shallow water to deep mound - sedimentology and stromatoporoids paleoecology from the Frasnian (Upper Devonian) of Belgium
Da Silva, Anne-Christine ULg; Kershaw, Stephen; Boulvain, Frédéric ULg

in Kölner Forum für Geologie und Paläontologie (2011), 19

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See detailEco-Ethology of bonobos, Pan paniscus, in West Democratic Republic of Congo: why are such data so important for long-term conservation programs?
Serckx, Adeline ULg; Huynen, Marie-Claude ULg; Beudels-Jamar, Roseline

in American Journal of Primatology (2011), 73

Endemic to the Democratic Republic of Congo (DRC) and classified as Endangered by IUCN, the Bonobo survival depends exclusively on management measures taken by a country having to deal concomitantly with ... [more ▼]

Endemic to the Democratic Republic of Congo (DRC) and classified as Endangered by IUCN, the Bonobo survival depends exclusively on management measures taken by a country having to deal concomitantly with several problems affecting its development. The current government’s intention to designate new protected areas need to be complemented by effective long-term conservation programs, taking into account both bonobos populations requirements and local socio-economic realities. As part of a WWF conservation program, our study focuses on recently discovered Bonobo populations in West RDC, an eccentric location of the species range. The region is characterized by numerous anthropogenic activities including logging and cattle ranching and is composed of forest-savannah mosaics in which Bonobo has hardly ever been studied in comparison with those evolving in central DRC rainforests. Preliminary observations already indicate that these Western populations differ from other known populations in terms of habitat use, with regular savannahs patches crossing and savannah fruits consumption. To shed further lights on species adaptation’s spectrum, our study investigates local population density; nesting sites choice; and diet composition. Here we present a baseline population density derived from 5 walks along transects using marked-nest count method and we discuss factors inducing nesting sites choice. Ultimately, our results should allow for the formulation of specific management recommendations to be used in regional conservation program. [less ▲]

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See detailThe role of saliency and meaning in oculomotor capture by faces
Devue, Christel ULg; Belopolsky, Artem; Theeuwes, Jan

in Perception (2011), 40 ECVP abstract suppl

Long-lasting debates question whether faces are special stimuli treated preferentially by our visual system or whether prioritized processing of faces is simply due to increased salience of their ... [more ▼]

Long-lasting debates question whether faces are special stimuli treated preferentially by our visual system or whether prioritized processing of faces is simply due to increased salience of their constituting features. To examine this issue, we used a visual search task in which participants had to make a saccade to the circle with a unique color among a set of six circles. Critically, there was a task-irrelevant object located next to each circle. We examined how an upright face, an inverted face or a butterfly, presented near the target or non-target circles affected eye movements to the target. Upright (13.12%) and inverted faces (10.8%) located away from the target circle captured the eyes more than butterflies (8.5%), but upright faces captured the eyes more than inverted faces. Moreover, when faces were next to the target, upright faces, and to some extent inverted faces, facilitated the saccades towards the target. Faces are thus salient and capture attention. More importantly however above and beyond their raw salience based on low-level features, canonical upright faces capture attention stronger than inverted faces. Therefore, faces are ‘special’ and our visual system is tuned to their meaning and not only to low-level features making up a face. [less ▲]

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See detailDramatic reduction of postnatal growth restriction after optimizing nutrition in very low birth weight infants.
SENTERRE, Thibault ULg; Rigo, J

in Pediatric Research (2011), 70(S5), 71

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See detailSyntactic complexity of ultimately periodic sets of integers
Rigo, Michel ULg; Vandomme, Elise ULg

in Lecture Notes in Computer Science (2011), 6638

We compute the cardinality of the syntactic monoid of the language 0^∗rep_b(mN) made of base b expansions of the multiples of the integer m. We also give lower bounds for the syntactic complexity of any ... [more ▼]

We compute the cardinality of the syntactic monoid of the language 0^∗rep_b(mN) made of base b expansions of the multiples of the integer m. We also give lower bounds for the syntactic complexity of any (ultimately) periodic set of integers written in base b. We apply our results to some well studied problem: decide whether or not a b-recognizable sets of integers is ultimately periodic. [less ▲]

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See detailProduction of heavy clusters (up to A=10) by coalescence during the intranuclear cascade phase of spallation reactions
Cugnon, Joseph ULg; Boudard, A; David, J-C et al

in J. Phys: Conf. Ser. (2011), 312

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See detailIndustrial applications of extended output-only Blind Source Separation techniques
Rutten, Christophe ULg; Nguyen, Viet Ha; Golinval, Jean-Claude ULg

in Vibration Problems Icovp 2011: The 10th International Conference on Vibration Problems (2011)

In the field of structural health monitoring or machine condition moni-toring, most vibration based methods reported in the literature require to measure responses at several locations on the structure ... [more ▼]

In the field of structural health monitoring or machine condition moni-toring, most vibration based methods reported in the literature require to measure responses at several locations on the structure. In machine condition monitoring, the number of available vibration sensors is often small and it is not unusual that only one single sensor is used to monitor a machine. This paper presents industrial applications of two possible extensions of output-only Blind Source Separation (BSS) techniques, namely Principal Component Analysis (PCA) and Second Order Blind Identification (SOBI). Through the use of block Hankel matrices, these methods may be used when a reduced set of sensors or even one single sensor is available. The objective is to address the problem of fault detection in mechanical systems using subspace-based methods. The detection is achieved by comparing the subspace features between the reference and a current state using the concept of angular coherence between subspaces. [less ▲]

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See detailSafety and Performance of Stochastic Targeted (STAR) Glycemic Control of Insulin and Nutrition – First Pilot Results
Shaw, Geoffrey M.; Le Compte, Aaron; Evans, Alicia et al

in Intensive Care Medicine (2011)

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See detailLocal stability results for the collective behaviors of infinite populations of pulse-coupled oscillators
Mauroy, Alexandre ULg; Sepulchre, Rodolphe ULg

in Proceedings of the IEEE Conference on Decision and Control (2011)

In this paper, we investigate the behavior of pulse-coupled integrate-and-fire oscillators. Because the stability analysis of finite populations is intricate, we investigate stability results in the ... [more ▼]

In this paper, we investigate the behavior of pulse-coupled integrate-and-fire oscillators. Because the stability analysis of finite populations is intricate, we investigate stability results in the approximation of infinite populations. In addition to recovering known stability results of finite populations, we also obtain new stability results for infinite populations. In particular, under a weak coupling assumption, we solve for the continuum model a conjecture still prevailing in the finite dimensional case. © 2011 IEEE. [less ▲]

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See detailHerschel PACS and SPIRE Observations of comet 103P/Hartley 2
Bockelee-Morvan, D.; Swinyard, B.; Vandenbussche, B. et al

in EPSC Abstracts 2011 (2011)

The ESA Herschel Space Observatory [8] used its full complement of state-of-the-art instruments to observe the far-infrared and submillimetre spectrum and to image the thermal dust radiation of the ... [more ▼]

The ESA Herschel Space Observatory [8] used its full complement of state-of-the-art instruments to observe the far-infrared and submillimetre spectrum and to image the thermal dust radiation of the Jupiter family comet 103P/Hartley 2 in the 70-672 μm spectral range. The observations were carried out in the period 24 October to 17 November 2010, as part of the Herschel Guaranteed Time Key program "Water and related chemistry in the Solar System" (HssO) [6]. We present here observations of H2O lines and of the dust coma made with the Photodetector Array and Camera (PACS) [9] and the Spectral and Photometric Imaging Receiver (SPIRE) [5]. [less ▲]

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See detailReduction of Cumulative Nutritional Deficit and Improvement of Early Growth in Extremely Preterm Infants
SENTERRE, Thibault ULg; Rigo, J

in Pediatric Research (2011), 70(S5), 830

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See detailObservations of the rotational lines of OH in comets with the Herschel Space Observatory
Crovisier, J.; Bockelée-Morvan, D.; Biver, N. et al

in EPSC Abstracts 2011 (2011)

We present here a search for the OH rotational lines in these spectral scans. In comet 103P/Hartley 2, the 2 3/2(5/2)-2 3/2(3/2) lines at 119 μm and 2 1/2(5/2)-2 1/2(3/2) lines at 99 μm are detected ... [more ▼]

We present here a search for the OH rotational lines in these spectral scans. In comet 103P/Hartley 2, the 2 3/2(5/2)-2 3/2(3/2) lines at 119 μm and 2 1/2(5/2)-2 1/2(3/2) lines at 99 μm are detected. Other lines may be marginally present. Two mechanisms concur to the emission of the OH rotational lines: fluorescence due to solar excitation of the electronic states of OH [8] and prompt emission following the photodissociation of water, which produces the OH radical in electronic, vibrational and rotational excited states [9, 10]. We will compare the observed line intensities with those expected from these mechanisms, using the comet water productions determined from Herschel [6, 7], in order to better constrain the excitation of cometary OH. [less ▲]

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See detailSpallation modeling- What's new on nuclei production with INCL4.5-Abla07?
David, J-C; Boudard, A; Cugnon, Joseph ULg et al

in Memorie della Società Astronomica Italiana (2011), 82(2), 909-912

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See detailRespiratory variability in mechanically ventilated patients
Desaive, Thomas ULg; Piquilloud, L.; Moorhead, KT et al

in Critical Care (2011), 15 (Suppl 1)

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See detailAssessment of ease of use and experience of the new paediatric triple-chamber bag for parenteral nutrition for preterm infants
Rigo, J; Marlowe, ML; Bonnot, D et al

in Intensive Care Medicine (2011), 37(S2), 396

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See detailExperimental characterization and constitutive modeling of TA6V mechanical behavior in plane strain state at room temperature
Gilles, Gaëtan ULg; Tuninetti Vásquez, Victor ULg; Ben Bettaieb, Mohamed ULg et al

in AIP Conference Proceedings (2011), 1383

This paper presents an experimental and theoretical study of the quasi-static behavior of TA6V titanium alloy in plane strain state. In order to quantify the anisotropy of the material, tests were carried ... [more ▼]

This paper presents an experimental and theoretical study of the quasi-static behavior of TA6V titanium alloy in plane strain state. In order to quantify the anisotropy of the material, tests were carried out at room temperature on specimens cut out from a sheet along three loading directions. The initial yield locus is described by the phenomenological CPB06ex3 criterion and Voce’s type isotropic hardening is used. Finite element simulations are performed and compared with the experiments. [less ▲]

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See detailRapid changes of aromatase activity in discrete brain regions following social interactions
de Bournonville, Catherine ULg; Ball, Gregory, F.; Balthazart, Jacques ULg et al

in Trabajos del Instituto Cajal (2011), LXXXIII

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See detailSIRT1-deficient mice exhibit an altered cartilage phenotype
Gabay, Odile; Sanchez, Christelle ULg; Dvir-Ginzberg, Mona et al

in Arthritis and Rheumatism (2011), 63(10), 702

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See detailNew alginate-chitosan hydrogel beads with anti-inflammatory and anabolic effects on human chondrocytes
Oprenyeszk, Frédéric ULg; Sanchez, Christelle ULg; Dubuc, Jean-Emile et al

in Arthritis and Rheumatism (2011), 63(10), 697

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See detailLong-term treatment of postmenopausal osteoporotic women with strontium ranelate : results at 10 years
Reginster, Jean-Yves ULg; Kaufman, J. M.; Devogelaer, J. D. et al

in Annals of the Rheumatic Diseases (2011), 70(S3), 167

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See detailTreatment of postmenopausal women with osteoporosis for 5 years with denosumab : two-year results from the FREEDOM trial extension
Chapurlat, R.; Bone, H. G.; Brandi M L et al

in Annals of the Rheumatic Diseases (2011), 70(S3), 166-167

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See detailReduction in incidence of vertebral fractures with once yearly zoledronic acid in men with osteoporosis
Boonen, S.; Kaufman, J. M.; Reginster, Jean-Yves ULg et al

in Journal of Bone and Mineral Research (2011), 26(S1), 23

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See detailThe clinical and economic burden of poor adherence with osteoporosis medications in Ireland
Hiligsmann, Mickaël ULg; McGowan, Bernie; Bennett, Kathleen et al

in Value in Health (2011), 14

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See detailOral salt supplementation and long-distance exercise
Lehance, Cédric ULg; Rodriguez de la Cruz, Carlos ULg; Counet, Laurence ULg et al

in British Journal of Sports Medicine (2011), 45

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See detailMethod for the Measurement of Dechlorane 602 in Human Serum
Brasseur, Catherine ULg; Pirard; Focant, Jean-François ULg

in Organohalogen Compounds (2011), 73

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See detailL’interleukine-1β augmente le catabolisme de la fibuline-3 par les chondrocytes : démonstration in vitro par la mesure des fragments Fib3-1 et Fib3-2
Gharbi, Myriam; Legrand, Catherine; Sanchez, Christelle ULg et al

in Revue du Rhumatisme (2011), 78(suppl 5), 131-132

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See detailClinical sedation and bispectral index in burn children receiving gamma-hydroxybutyrate.
ROUSSEAU, Anne-Françoise ULg; SABOURDIN, Nada; RICHARD, Patrick et al

in European Journal of Anaesthesiology. Supplement (2011), 28(Suppl 48), 150

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See detailLack of P2X1 ion channels increases endotoxemia associated coagulation and organ damage through neutrophil hyperresponsiveness.
Lecut, Christelle ULg; Faccinetto, Céline ULg; Evans, Richard J et al

in Journal of Thrombosis and Haemostasis [=JTH] (2011), 9(suppl S2),

ATP-gated P2X1 ion channels contribute to arterial thrombosis by amplifying platelet activation. In the search for novel anti-platelet strategies, targeting P2X1 ion channels is appealing. However, in ... [more ▼]

ATP-gated P2X1 ion channels contribute to arterial thrombosis by amplifying platelet activation. In the search for novel anti-platelet strategies, targeting P2X1 ion channels is appealing. However, in this study we found that lack or inhibition of P2X1 channels enhanced neutrophil respiratory burst activity ex vivo. <br />To study the consequence of P2X1 deficiency on neutrophil function in vivo, P2X1-/- mice were used in a model of endotoxin-induced sepsis. Upon injection of lipopolysaccharides (LPS), plasma myeloperoxidase (MPO) concentrations reached higher levels in the P2X1-/- mice, and circulating neutrophils expressed higher levels of surface CD11b compared to wild-type mice. Neutrophil relocalization into the lungs of LPS-treated P2X1-/- mice was also significantly augmented, reflecting a higher activation state of P2X1-/- neutrophils under conditions of sepsis. Accordingly, more extensive lipid peroxidation was observed in the liver of LPS-treated P2X1-/- mice, indicative of exaggerated oxidative damage. Concomitantly, the levels of thrombin-antithrombin complexes were higher in the plasma of LPS-treated P2X1-/- mice and thrombocytopenia was worsened as compared to wild type mice. Elevated numbers of microthrombi were also found in the lungs of these mice. These observations coincided with a higher susceptibility of P2X1-/- mice to LPS-induced septic shock than wild type animals. <br />Our results strongly suggest that P2X1 ion channels play a protective role in sepsis by negatively regulating systemic neutrophil activation, thereby limiting oxidative damage, activation of coagulation and platelet accumulation into the lungs. Therefore, since antagonists of P2X1 ion channels may not only target platelets but also affect neutrophils, inhibiting these channels in the highly inflammatory environment of severe sepsis or of acute coronary syndromes might be detrimental. [less ▲]

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See detailLes billes alginate-chitosane : un nouveau biomatériau pour la réparation des lésions du cartilage
Oprenyeszk, Frédéric ULg; Sanchez, Christelle ULg; Dubuc, Jean-Emile et al

in Revue du Rhumatisme (2011), 78(suppl 5), 129-130

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See detailLa motivation du licenciement en droit belge
Kefer, Fabienne ULg

in Revue de la Faculté de Droit de l'Université de Liège (2011)

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See detailTrend and lifetime of sulfur hexafluoride at mid-latitudes deduced from ACE-FTS occultation measurements
Mahieu, Emmanuel ULg; Duchatelet, Pierre ULg; Zander, Rodolphe ULg et al

in Geophysical Research Abstracts (2011), 13

Sulfur hexafluoride (SF6) is one of the strongest greenhouse gases on a per molecule basis, with a global warming potential of 22800 (100-yr horizon). This is an extremely stable gas in the atmosphere ... [more ▼]

Sulfur hexafluoride (SF6) is one of the strongest greenhouse gases on a per molecule basis, with a global warming potential of 22800 (100-yr horizon). This is an extremely stable gas in the atmosphere, which results in a very long lifetime, with large uncertainties. The value adopted by IPCC is 3200 years, but some studies suggest shorter lifetimes, as low as 800 years. Surface concentrations are now about 7 ppt, with reported trends indicating a steady and strong increase of 0.3 ppt/yr. Most emissions are of anthropogenic origin, related to its use as an insulator in high-voltage electrical installations. Secondary contributions result from magnesium and aluminum production as well as from the manufacturing of semiconductors (see e.g. Levin et al., 2010; Rigby et al., 2010 and references therein). In this contribution, we use occultation measurements performed by the ACE-FTS (Atmospheric Chemistry Experiment Fourier Transform Spectrometer) instrument, launched in August 2003 onboard the Canadian SCISAT satellite (Bernath et al., 2005). ACE-FTS is still in operation to date, with no significant degradation in its performance. This spectrometer achieves a spectral resolution of 0.02 cm-1 in the broad 750-4400 cm-1 range which covers the unresolved nu-3 band Q branch of SF6 centered at 947.9 cm-1. Signal-to-noise ratios of 200-300 are typically obtained in the spectral region of interest. Version 3 retrievals performed by University of Waterloo give volume mixing ratio profiles of SF6 in the 11-32 km altitude range. We consider all available sunrise and sunset occultation measurements obtained at midlatitudes in both hemispheres to derive the trend of SF6 in the lower stratosphere, from late February 2004 onwards. Consistency between both hemispheres will be investigated. In addition, concurrent N2O measurements are used to evaluate the atmospheric lifetime of SF6, following a method used previously for other long-lived gases (e.g. Zander et al, 1996). Comparisons with trends derived from in situ surface measurements or from ground-based remote-sensing observations (e.g. at the Jungfraujoch station, 46.5ºN) are also included. [less ▲]

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See detailImage appraisal tools for electrical resistivity tomography
Caterina, David ULg; Beaujean, Jean ULg; Robert, Tanguy ULg et al

in Proceedings of SAGEEP (2011), 24

Image appraisal is a problem frequently encountered in electrical resistivity tomography (ERT), and more generally in non-linear geophysical inversion. It may include several aspects such as the ... [more ▼]

Image appraisal is a problem frequently encountered in electrical resistivity tomography (ERT), and more generally in non-linear geophysical inversion. It may include several aspects such as the identification of the geometry of buried structures, the detection of numerical artefacts, the estimation of the depth of investigation or the exactitude of inverted parameters. Geophysicists can rely on several tools published in the literature to address these issues. However, few studies offer a quantitative comparison on the performance of these tools concerning the different mentioned aspects. Moreover, to our knowledge, there is no commonly accepted methodology to handle image appraisal. In this contribution, we compared quantitatively the ability of different image appraisal indicators to reach different objectives (geometry, artefacts, depth of investigation, parameter resolution). Among possible image appraisal tools, the model resolution matrix (MRM), the cumulative sensitivity matrix (CSM) and the depth of investigation index (DOI) are the most cited ones and were studied here. We compared them first on numerical models representing different geological situations. This numerical benchmark showed that indicators based on the MRM and CSM were the more appropriate to appraise ERT images in terms of the geometry of structures and the exactitude of inverted parameters, DOI providing mainly qualitative information. On this basis, we propose a methodology to appraise field ERT images focusing on the resolution and geometric aspects (others being implicitly studied). First, True Synthetic Models (TSM), representing simplified cases of field ERT images, are built using available information. Then, through forward modelling, synthetic ERT data are computed and inverted to provide the Inverted Synthetic Models (ISM). Afterwards, a comparison between TSM and ISM (or their gradients for geometry) is made in order to define the errors on inverted parameters. This discrepancy is then plotted with respect to resolution indicator values and points out in every tested cases a resolution range over which the errors abruptly increase allowing the definition of threshold values. The final step consists in applying the threshold values on the field ERT images and to validate the results with a posteriori knowledge. [less ▲]

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See detailEFFECT OF DIFFERENT WARMING-UP PROTOCOLS ON TIME TO EXHAUSTION AT MAXIMAL AEROBIC SPEED
Rodriguez de la Cruz, Carlos ULg; Brennenraedts, C.; Bury, Thierry ULg

in British Journal of Sports Medicine (2011), 45

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See detailStrontium ranelate : an effective solution whatever the patient profiles
Reginster, Jean-Yves ULg

in Osteoporosis International (2011), 22(S5), 756-757

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See detailComparison of Immune Reconstitution after Non-myeloablative Hematopoietic Cell Transplantation (HCT) with Flu-TBI versus TLI-ATG Conditioning
Hannon, Muriel ULg; Humblet-Baron, S.; Graux, C. et al

in Belgian Journal of Hematology (2011), Abstracts book(Supplement of 26th General Meeting of the Belgian Hematological Society), 8

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See detailGlucosamine sulfate for structure modification in osteoarthritis : fact of fantasy ?
Reginster, Jean-Yves ULg

in Ortopedia, Traumatologia, Rehabilitacja (2011), 13(S1), 44

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See detailEfficacy and safety of strontium ranelate in the treatment of knee ostoarthritis : a randomized, double-blind, placebo-controlled international trial
Reginster, Jean-Yves ULg; Chapurlat, R.; Christiansen, C. et al

in Osteoporosis International (2011), 22(S5), 742-743

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See detailFaire de sa vie une œuvre d'art paralittéraire. Quelques réflexions autour de la littérature-Mesrine
Denis, Benoît ULg

in Etudes Françaises (2011), 47(1), 141-155

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See detailWhat's new on the horizon in therapy
Reginster, Jean-Yves ULg

in Osteoporosis International (2011), 22(S5), 682

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See detailSTRATEGY FOR ASSESSING IMPACTS OF THYROID DISRUPTING CHEMICALS IN TELEOSTEANS
Schnitzler, Joseph ULg; Klaren, Peter; Celis, Niko et al

in Organohalogen Compounds (2011)

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See detailExploration neurodéveloppementale de la mémoire de travail par neuroimagerie fonctionnelle
Noro, Magali; Linotte, Sylvie; Ansseau, Marc ULg et al

in Encéphale (L') (2011), 37

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See detailLong-term denosuamab treatment in postmenopausal women with osteoporosis : results from the first two years of the FREEDOM trial extension
Bone, H.; Chapurlat, R.; Brandi, M. et al

in Osteoporosis International (2011), 22(S4), 527-528

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See detailTaux sérique de vitamine D et réponse au traitement par alendronate
Roux, C.; Chartier, C.; Boonen, S. et al

in Revue du Rhumatisme (2011), 78(S5), 102

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See detail2-18F-Fluoro-L-tyrosine in the suspicion of recurrence of previously treated gliomas.
AGIUS, C.; NAMUR, Gauthier ULg; COUTURIER, O. et al

in European Journal of Nuclear Medicine and Molecular Imaging (2011), 38(SUPPL), 219

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See detailExtended safety observations from denosumab administration in postmenopausal women from FREEDOM and FREEDOM extension trials
Brown, J. P.; Bone, H. G.; Chapurlat, R. et al

in Arthritis and Rheumatism (2011), 63(S10), 431-432

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See detailRécit de paroles et expériences de l’altérité dans Le Monde vrai de Marivaux
Tilkin, Françoise ULg

in Philologia (2011), XXI(Supplementum I), 281-290

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See detailMaintenance of antifracture efficacy over 10 years with strontium ranelate in postmenopausal osteoporosis
Reginster, Jean-Yves ULg; Kaufman, J. M.; Devogelaer, J. P. et al

in Arthritis and Rheumatism (2011), 63(S10), 436

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See detailTraitement durant cinq ans par denosumab (DMAb) chez des femmes ménopausées ostéoporotiques : résultats d'efficacité des deux premières années de l'extension de l'essai FREEDOM
Chapurlat, R.; Roux, C.; Papapoulos, S. et al

in Revue du Rhumatisme (2011), 78(S5), 214

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See detailION MOBILITY – MASS SPECTROMETRY AS A NEW APPROACH FOR THE SCREENING OF PESTICIDE RESIDUES IN FOOD
Goscinny, Séverine ULg; Touilloux, Romain; Joly, Laure et al

in Organohalogen Compounds (2011)

Pesticide residue analysis requires methods that can determine hundreds of compounds at low levels in complex food matrices. This challenge has given rise to multi residue methods, the only efficient ... [more ▼]

Pesticide residue analysis requires methods that can determine hundreds of compounds at low levels in complex food matrices. This challenge has given rise to multi residue methods, the only efficient analytical approach. This type of analytical method entails a “generic” extraction followed by a soft or no purification step to avoid any analytes looses. With over a 1000 active compounds with different physical chemical properties, gas and liquid chromatography are used as complementary separative techniques. In the past decade, the determination has been performed on tandem mass analyzers, a powerful tool to overcome co-eluting compounds with excellent sensitivity. Nevertheless, these instruments can guarantee these results per acquisition cycles for more or less 150 compounds. This represents a serious limitation when the number of pesticides to be sought for monitoring and MRL enforcement is growing each year. As multiple injections from the same sample are not viable for laboratories, alternative options have to be explored. We propose the investigation of ion mobility (IM) coupled with mass spectrometry as a new approach for pesticide residue analysis in food. [less ▲]

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See detailDioxins in Human Milk from Different Regions of France: Pilot of the French Longitudinal Study of Children (ELFE)
Vandentoren, S; Frery, N; Bidondo, ML et al

in Organohalogen Compounds (2011), 73

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See detailInfluence of practice characteristics on injury risk in young athletes
Frisch, Anne ULg; Urhausen, Axel; Seil, Romain et al

in British Journal of Sports Medicine (2011), 45

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See detailA phase 3 study of the efficacy and safety of Denosumab in men with low bone mineral density : design of the ADAMO
Orwoll, E.; Stubbe Teglbjaerg, Ch; Langdahl, B. et al

in Journal of Bone and Mineral Research (2011), 26(S1), 511

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See detailStudy of the forbidden oxygen lines in a dozen comets observed at the VLT (ESO)
Decock, Alice ULg; Jehin, Emmanuel ULg; Manfroid, Jean ULg et al

in EPSC Abstracts 2011 (2011)

The forbidden lines are difficult to analyse because their detection requires high spectral and spatial resolutions. Their analysis is however interesting because it allows the determination of the ... [more ▼]

The forbidden lines are difficult to analyse because their detection requires high spectral and spatial resolutions. Their analysis is however interesting because it allows the determination of the spatial distribution and the production rate of the parent molecules, supposedly H2O which doesn't have any feature in the optical range. But as shown by Cochran [2] [3], some issues remain about the nature of the parents of the oxygen atoms. Moreover the width of the green line was found larger than that of the red lines. One of the goals of this study is to determine the parent species that photo-dissociate to produce oxygen atoms and see how this process depends on the heliocentric distance. We present here the results of the analysis of a homogeneous set of high quality spectra of 13 different comets observed with UVES at the ESO VLT since 2002 [4] [5]. [less ▲]

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See detailQuestionnement agroécologique: les systèmes participatifs de garantie comme critique de la certification et nouveau mode de gouvernance?
Stassart, Pierre M ULg; Brandenburg, Alfio; Isaguirre, Katya

in SFER Online http://www.sfer.asso.fr/les_colloques2/les_transversalites_de_l_agriculture_biologique/programme_actes_du_colloque (2011)

Ce papier propose un questionnement agroécologique sur la transition agroécologique comme un processus de réflexivité de second ordre. Nous construisons cette hypothèse en prenant le cas de l’émergence ... [more ▼]

Ce papier propose un questionnement agroécologique sur la transition agroécologique comme un processus de réflexivité de second ordre. Nous construisons cette hypothèse en prenant le cas de l’émergence des Systèmes Participatif de Garantie (SPG) au Brésil comme une critique de la certification déléguée à une tierce partie et une proposition alternative de gouvernance face au contrôle de conformité marchand. Nous prenons en particulier le cas d’Ecovida et de sa certification participative qui est à l’origine des SPG brésiliennes. Le statut de notre communication est prospectif : après avoir précisé ce que nous entendons par réflexivité, nous posons une série de questions qui portent à la fois sur l’apprentissage et la réflexivité de cette expérience#!Cette mise à l’épreuve nous intéresse dans la mesure où elle peut nous informer sur ce que peuvent devenir des modes de gouvernance réflexifs dans le monde de la bio. [less ▲]

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See detailProcessing aortic and pulmonary artery waveforms to derive the ventricle time-varying elastance
Stevenson, D. J.; Hann, C. E.; Chase, G. J. et al

in IFAC Proceedings Volumes (IFAC-PapersOnline) (2011), 18(PART 1), 587-592

Time-varying elastance of the ventricles is an important metric both clinically and as an input for a previously developed cardiovascular model. However, currently time-varying elastance is not normally ... [more ▼]

Time-varying elastance of the ventricles is an important metric both clinically and as an input for a previously developed cardiovascular model. However, currently time-varying elastance is not normally available in an Intensive Care Unit (ICU) setting, as it is an invasive and ethically challenging metric to measure. A previous paper developed a method to map less invasive metrics to the driver function, enabling an estimate to be achieved without invasive measurements. This method requires reliable and accurate processing of the aortic and pulmonary artery pressure waveforms to locate the specific points that are required to estimate the driver function. This paper details the method by which these waveforms are processed, using a data set of five pigs induced with pulmonary embolism, and five pigs induced with septic shock (with haemofiltration), adding up to 88 waveforms (for each of aortic and pulmonary artery pressure), and 616 points in total to locate. 98.2% of all points were located to within 1% of their true value, 0.81% were between 1% and 5%, 0.65% were between 5% and 10%, the remaining 0.32% were below 20%.© 2011 IFAC. [less ▲]

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See detailImpact of chronic graft-versus-host disease (GVHD) after reduced intensity conditioning (RIC) allogeneic stem cell transplantation (allo-SCT) as treatment for acute myeloid leukemia (AML) : a survey from the Acute Leukemia Working Party of the EBMT
Baron, Frédéric ULg; Labopin, Myriam; Niederwieser, Dietger et al

in Blood (2011), 118

The goal of RIC allo-SCT is to harness the graft-versus-leukemia (GVL) effect, while minimizing toxicities and the risk of GVHD. However, prior studies have shown a lower risk of relapse in AML patients ... [more ▼]

The goal of RIC allo-SCT is to harness the graft-versus-leukemia (GVL) effect, while minimizing toxicities and the risk of GVHD. However, prior studies have shown a lower risk of relapse in AML patients (pts) who experienced chronic GVHD after RIC allo-SCT versus in those who did not. Here, we investigated the impact of occurrence of GVHD on transplantation outcomes in a large cohort of AML pts given allogeneic PBSC after RIC conditioning. Data from 1859 AML pts in first (n=1439) or second (n=420) CR transplanted between 2000 and 2009 following a RIC regimen at EBMT affiliated centres were analyzed. Pts were given PBSC from HLA-identical sibling (MRD, n=1208), or from HLA-matched unrelated donors (MUD, n=651). Median pt age at transplantation was 56 y (range, 18–77). 338 male pts were given grafts from female donors. RIC was based on low-dose TBI in 520 (28%) pts, while the remaining pts received chemotherapy-based RIC. ATG was given in 269 (22%) MRD and in 267 (41%) MUD recipients, respectively, while 151 (13%) MRD and 165 (25%) MUD recipients received in-vivo T cell depletion with alemtuzumab. The impact of chronic GVHD on relapse risk, non-relapse mortality (NRM), leukemia-free survival (LFS), and overall survival (OS) was assessed using time-dependent multivariate Cox models and in a landmark analysis at 18 months after transplant. Three-year incidences of relapse, NRM, LFS and OS were 34±1%, 15±1%, 51±2% and 60±2% in MRD recipients, respectively, and 34±2% (p=NS), 24±2% (P<0.001), 42±2% (P=0.001) and 47±2% (P=0.001) in MUD recipients, respectively. Grade II, III and IV acute GVHD were observed in 133 (11%), 61 (5%) and 30 (2%) MRD recipients and in 119 (18%), 41 (6%) and 24 (4%) MUD recipients, respectively. The 3-y cumulative incidence of chronic GVHD was 47%. Fifty-three percent of patients with chronic GVHD had extensive chronic GVHD, while the remaining 47% had limited chronic GVHD. In multivariate analyses, occurrence of grade II-IV acute GVHD was associated with a lower risk of relapse (HR=0.8; P=0.04), a higher risk of chronic (HR=2.2; P<0.001) and extensive chronic GVHD (HR=2.8; P<0.001), a higher risk of NRM (HR=2.4 P<0.001), a worsened LFS (HR=1.3; P=0.01), and a worsened OS (HR=1.5; P<0.001). In multivariate time-dependent analyses, occurrence of limited chronic GVHD was associated with a lower risk of relapse (HR=0.7; P=0.05), comparable NRM (HR=1.4; P=0.16), comparable LFS (HR=0.9; P=0.29) and better OS (HR=0.5; P<0.001), while occurrence of extensive chronic GVHD was associated with a lower risk of relapse (HR=0.6; P=0.01), higher NRM (HR=3.2; P<0.001), a trend for worsened LFS (HR=1.3; P=0.06) and comparable OS (HR=0.9; P=0.34). The median interval from transplantation to occurrence of chronic GVHD was 163 (range, 100–1545) days. To further assess the graft-versus-leukemia effect of chronic GVHD, we performed a landmark analysis in patients who were leukemia-free at 18 months after transplantation (n=776). Median follow-up from this landmark time-point was 24 (range, 0.1–112) months. Two-year relapse, NRM, LFS and OS were 16±2%, 2.5±1%, 82±2%, and 89±2%, respectively, in patients without chronic GVHD before the landmark time-point, versus 9±1% (P=0.001), 8±1% (P<0.001), 83±2% (P=0.65), and 86±2% (P=0.38), respectively, in patients with chronic GVHD before the landmark time-point.In conclusion, in this cohort of AML patients transplanted in remission, occurrence of chronic GVHD was associated with a lower risk of relapse that translated to better OS in patients with limited chronic GVHD but not in those with extensive chronic GVHD who experienced higher long term NRM, highlighting the need for long term prospective assessment of long term effects and quality of life in patients receiving RIC allo-SCT. [less ▲]

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See detailHigh-Energy Physics with Particles Carrying Non-Zero Orbital Angular Momentum
Ivanov, Igor ULg

in Few-Body Systems (2011)

Thanks to progress in optics in the past two decades, it is possible to create photons carrying well-defined non-zero orbital angular momentum (OAM). Boosting these photons into high-energy range ... [more ▼]

Thanks to progress in optics in the past two decades, it is possible to create photons carrying well-defined non-zero orbital angular momentum (OAM). Boosting these photons into high-energy range preserving their OAM seems feasible. Intermediate energy electrons with OAM have also been produced recently. One can, therefore, view OAM as a new degree of freedom in high-energy collisions and ask what novel insights it can bring. Here we discuss generic features of scattering processes involving twisted particles in the initial state. We show that they make it possible to perform a Fourier analysis of a plane wave cross section with respect to the azimuthal angles of the initial particles, and to probe the autocorrelation function of the amplitude, a quantity inaccessible in plane wave collisions. [less ▲]

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See detailFibulin-3 fragments (FIB3-1 and FIB3-2) are potential new biomarkers for the diagnosis of osteoarthritis
Gharbi, M; Dubuc, JE; Deberg, M et al

in Annals of the Rheumatic Diseases (2011), 70(Suppl 3), 354

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See detailDenosumab therapy in postmenopausal women with osteoporosis : results from the first two years of the freedom trial extension
Bone, H. G.; Chapurlat, R.; Brandi, M. L. et al

in Endocrine Reviews (2011), 32

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See detailLevels of PCDD/Fs and PCBs in Camel Milk (Camelus Bactrianus and Camelus Dromedarius) from Kazakhstan
Konuspeyeva, G; Faye, B; De Pauw, Edwin ULg et al

in Organohalogen Compounds (2011), 73

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See detailA methodology to assess the exactness of Stream Network modeling process on agricultural watersheds
Ouedraogo, Mohamar ULg; Degre, Aurore ULg; Beckers, Eléonore ULg et al

in Geophysical Research Abstracts (2011)

The goal of our study is to evaluate the exactness of stream network modeling process on agricultural watersheds. Agricultural watersheds topography is always changing, making it difficult to be modeled ... [more ▼]

The goal of our study is to evaluate the exactness of stream network modeling process on agricultural watersheds. Agricultural watersheds topography is always changing, making it difficult to be modeled. According to the standard ISO-7078 (ISO-7078, 1985) of the Inernational Organization of Standardization, the exactness of a measurement process or a modeled process can be defined as the difference between results obtained from the measurement process and a reference accepted as the «true value». A small watershed of a dozen hectares size has been surveyed by terrestrial LiDAR (Light Detecting And Ranging) scanner and photogrammetrical techniques to produce a row data of 30 cm resolution. Three interpolation techniques i.e. natural neighbourg, multiquadratic radial basis function and inverse distance weighted have been applied on the original data to create original digital elevation models (DEM) of 1 m resolution. RTK (Real Time Kinematics) GPS (Global Positionning System) ground control points have been surveyed on the watershed to evaluate DEM errors and fit a variogram that is used by a conditional sequencial gaussian simulation model to generate error maps. However, ground control point’s elevations accuracy is depending on the microtopography of parcels in an agricultural watershed. Depending on the crop that is planned by the farmer, the soil tillage will be different, and soil structure and roughness can considerably influence ground control point’s elevation. Analysis of variance and geostatistical methods have been applied on total station and RTK GPS data to estimate intervals in which, ground control points elevations vary. These intervals have been estimated for two parcels that soils are tilled in different ways. These errors are added to the generated errors maps to create final error maps. The final errors maps are added to the original DEM to create likely DEM realizations for the watershed (Temme and al., 2007). Then, two spurious sinks filtering methods (Colson 2006; Lindsay and Creed, 2005) and one flat area treatment method (Jenson and Domingue, 1988) are applied on each DEM realization for preprocessing. Finally, the three common flow direction extraction methods (D8, D-infity and Multiple Flow Direction) are applied on each preprocessed DEM to extract stream Network. The extracted stream network is overlapped with RTK GPS field positioned stream network i.e. a polyline format data. To estimate the exactness of the stream extraction methods, the polyline format is converted in raster format. That allows to compute for each pixel of the observed stream network, the distance to the extracted stream network. Then, for each pixel the mean distance can be calculated, and can be represented through the stream network. LiDAR technology is becoming useful for environment modeling because of his accuracy. Such quantity of data is not free of errors. This research will allow us to estimate the uncertainty of stream network modeled from agricultural watersheds by considering the main sources of errors that are propagated through computing processes. [less ▲]

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See detailMaxwell rigidity and topological constraints in amorphous phase-change networks
Micoulaut, M.; Otjacques, C.; Raty, Jean-Yves ULg et al

in AIP Conference Proceedings (2011), 1393

By analyzing first-principles molecular-dynamics simulations of different telluride amorphous networks, we develop a method for the enumeration of radial and angular topological constraints, and show that ... [more ▼]

By analyzing first-principles molecular-dynamics simulations of different telluride amorphous networks, we develop a method for the enumeration of radial and angular topological constraints, and show that the phase diagram of the most popular system Ge-Sb-Te can be split into two compositional elastic phases: a tellurium rich flexible phase and a stressed rigid phase that contains most of the materials used in phase-change applications. This sound atomic scale insight should open new avenues for the understanding of phase-change materials and other complex amorphous materials from the viewpoint of rigidity. [less ▲]

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See detailA Multi-wavelength study with the ESO VLT of comet 103P/Hartley2 at the time of the EPOXI encounter
Jehin, Emmanuel ULg; Hutsemekers, Damien ULg; Manfroid, Jean ULg et al

in EPSC Abstracts 2011 (2011)

We report on simultaneous optical and infrared spectroscopic observations of the Jupiter Family comet 103P/Hartley2 performed with the UT-1 and UT-2 8-m Unit Telescopes of the ESO Very Large Telescope ... [more ▼]

We report on simultaneous optical and infrared spectroscopic observations of the Jupiter Family comet 103P/Hartley2 performed with the UT-1 and UT-2 8-m Unit Telescopes of the ESO Very Large Telescope (VLT). These coordinated observations were carried on during several nights (2010 Nov. 5, 9, 10 and 11 UT) around the NASA EPOXI encounter with the comet on Nov. 4 [1] and in support to the key program « Water and related chemistry in the Solar System » (HssO) [2] of the Herschel Space Observatory. From high resolution optical spectroscopy of the CN (0,0) 388 nm band using UVES at UT2 we determined the isotopic ratios 12C/13C = 95 ± 15 and 14N/15N = 155 ± 25 in the CN radical. From the NH2 (0,9,0) and the H2O+ bands around 600 nm, we derived a nuclear spin temperature of 33 ± 3 K for NH3 and 36 +7/-6 K for H2O. These values are similar to those found in Oort- Cloud and Jupiter Family comets. From lowresolution long-slit spectroscopy with FORS2 at UT1 we will determine the CN, C2 and C3 spatial profiles and their production rates. From the high-resolution near-IR spectra that we collected with CRIRES at UT1 we will measure simultaneously the production rates and mixing ratios of the parent molecules H2O, HCN, C2H6, and CH3OH that are well detected in our spectra and we will study the link to the daughter species. [less ▲]

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See detailNew alginate-chitosan hydrogel beads with anti-inflammatory and anabolic effects on human chondrocytes
Oprenyeszk, Frédéric ULg; Mathy, Marianne ULg; Sanchez, Christelle ULg et al

in Osteoarthritis and Cartilage (2011), 19(Suppl 1), 222

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See detailTGFbeta-receptor-dependent angiostimulation through the hyperglycosylated isoform of human chorionic gonadotropin.
Berndt, Sarah; Detilleux, Julien; Blacher, Silvia et al

in Placenta (2011), 32(9), 44

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See detailNegative parity nonstrange baryons in large Nc QCD: quark excitation versus meson-nucleon scattering
Stancu, Floarea ULg; Matagne, Nicolas ULg

in Bled Workshops in Physics (2011), 12(1), 57-63

We show that the two complementary pictures of large $N_c$ baryons - the single-quark orbital excitation about a symmetric core and the meson-nucleon resonance -- are compatible for $\ell$ = 3 SU(4 ... [more ▼]

We show that the two complementary pictures of large $N_c$ baryons - the single-quark orbital excitation about a symmetric core and the meson-nucleon resonance -- are compatible for $\ell$ = 3 SU(4) baryons. The proof is based on a simple Hamiltonian including operators up to order $\mathcal{O}(N^0_c)$ used previously in the literature for $\ell$ = 1. [less ▲]

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