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See detailCentrons nous sur le patient
RADERMECKER, Régis ULg

in Revue de l'Association Belge du Diabète (2013)

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See detailCentury-scale simulations of the response of the West Antarctic Ice Sheet to a warming climate
Cornford, S.L.; Martin, D.F.; Payne, A.J. et al

in Cryosphere (The) (2015), 9

We use the BISICLES adaptive mesh ice sheet model to carry out one, two, and three century simulations of the fast-flowing ice streams of the West Antarctic Ice Sheet, deploying sub-kilometer resolution ... [more ▼]

We use the BISICLES adaptive mesh ice sheet model to carry out one, two, and three century simulations of the fast-flowing ice streams of the West Antarctic Ice Sheet, deploying sub-kilometer resolution around the grounding line since coarser resolution results in substantial underestimation of the response. Each of the simulations begins with a geometry and velocity close to present-day observations, and evolves according to variation in meteoric ice accumulation rates and oceanic ice shelf melt rates. Future changes in accumulation and melt rates range from no change, through anomalies computed by atmosphere and ocean models driven by the E1 and A1B emissions scenarios, to spatially uniform melt rate anomalies that remove most of the ice shelves over a few centuries. We find that variation in the resulting ice dynamics is dominated by the choice of initial conditions and ice shelf melt rate and mesh resolution, although ice accumulation affects the net change in volume above flotation to a similar degree. Given sufficient melt rates, we compute grounding line retreat over hundreds of kilometers in every major ice stream, but the ocean models do not predict such melt rates outside of the Amundsen Sea Embayment until after 2100. Within the Amundsen Sea Embayment the largest single source of variability is the onset of sustained retreat in Thwaites Glacier, which can triple the rate of eustatic sea level rise. [less ▲]

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See detailThe CEPANI 2013 Arbitration Rules
Caprasse, Olivier ULg

in ASA Bulletin (2013)

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See detailCEPAO shakedown, new computational aspects
Hoang, Van Long ULg; Nguyen, Dang-Hung

Conference (2013, December)

although the application of linear programming in the rigid-plastic analysis and optimization has been investigated for more than fifty years, but this direction has have difficulties solving large-scale ... [more ▼]

although the application of linear programming in the rigid-plastic analysis and optimization has been investigated for more than fifty years, but this direction has have difficulties solving large-scale structures. A recent development aiming to overcome these difficulties in the cases of three-dimensional framed structures has been carried out at University of Liège, in which the shakedown analysis and optimization modulus are presented in this paper. The finite element method is applied to establish the formulations of beam-column elements while the normality rule is adopted to model 3D plastic-hinges considering two bending moments and axial force through multi-facet polyhedrons. The upper bound and lower bound theorems of the shakedown theory constitute the fundamental bases for the numerical implementations that are then written under linear programming problems. The formula-sizes are reduced by using several computation techniques leading to a considerable time saving in the simplex iteration. The mentioned algorithm was implemented in a united package for plastic-hinge direct analysis and optimization of framed structures, named CEPAO. The last is used to perform a number of numerical examples demonstrating the robustness and efficiency of the proposed algorithm. [less ▲]

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See detailCephalees explosives, "en coup de tonnerre": faut-il s'inquieter?
DELVAUX, Valérie ULg; vandenheede, michel; Schoenen, Jean ULg

in Revue Médicale de Liège (2000), 55(10), 910914

"Thunderclap" headaches are explosive, extremely intense and sometimes associated with neurological signs or symptoms. As illustrated by the 3 case histories presented here, they are a heterogenous group ... [more ▼]

"Thunderclap" headaches are explosive, extremely intense and sometimes associated with neurological signs or symptoms. As illustrated by the 3 case histories presented here, they are a heterogenous group as far as etiology and prognosis are concerned. They may be symptomatic of an intracranial disorder (subarachnoid hemorrhage, cerebral venous thrombosis, pituitary apoplexia) or idiopathic without any known cause and with a benign, though occasionally recurring, course. They can be spontaneous or triggered by Valsalva maneuvers (cough, exertion, coitus, ...). In certain cases of so-called "idiopathic" thunderclap headache, diffuse, multifocal segmental and reversible vasospasm of cerebral arteries has been found on neuroimaging. As headache characteristics are similar in symptomatic and benign cases, angio-MRI is recommended when CT-scan and CSF examination are normal. [less ▲]

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See detailLes céphalées par abus d'antalgiques et d'anti-migraineux
Fumal, Arnaud ULg; Magis, Delphine ULg; Schoenen, Jean ULg

in Revue Médicale de Liège (2006), 61(4), 217-22

Medication overuse headache (MOH) insidiously evolves from episodic migraine or tension-type headache because of overconsumption of analgesics, ergotamine or triptans. It affects 1-2% of the general ... [more ▼]

Medication overuse headache (MOH) insidiously evolves from episodic migraine or tension-type headache because of overconsumption of analgesics, ergotamine or triptans. It affects 1-2% of the general population, but 15-20% of patients attending specialized headache centers. The precise neurobiologic mechanisms underlying this complication of episodic headaches are not well understood. Abnormalities of central monoaminergic systems have been suggested and substance dependence is more frequent in personal and family histories of affected subjects. In a recent FDG-PET study of 16 migraineurs with MOH before and after analgesics withdrawal we found a persistent hypometabolism of the medial orbitofrontal cortex, comparable to the one described after withdrawal in substance abuse. The orbitofrontal cortex plays a pivotal role in drive, decision-making and drug dependence. We postulate that its hypoactivity predisposes certain migraineurs to MOH and to relapse after withdrawal. There is no unique management strategy for these patients, but medication withdrawal is a prerequisite for the effectiveness of preventive treatments and headache improvement. [less ▲]

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See detailLes céphalées post-ponction durale: traitement et prévention
LENELLE, Laurence ULg; LAHAYE-GOFFART, Benoît ULg; DEWANDRE, Pierre-Yves ULg et al

in Revue Médicale de Liège (2011), 66(11), 575-580

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See detailLes céphalées qui inquiètent
Martin, Didier ULg

Scientific conference (2010, October 13)

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See detailCephalic and extracephalic pressure pain thresholds in chronic tension-type headache.
Schoenen, Jean ULg; Bottin, D.; Hardy, F. et al

in Pain (1991), 47(2), 145-9

Pressure pain thresholds were assessed with an algometer (Somedic Inc.), over the forehead, temple and suboccipital region as well as over the Achilles tendon. A group of 32 patients suffering from ... [more ▼]

Pressure pain thresholds were assessed with an algometer (Somedic Inc.), over the forehead, temple and suboccipital region as well as over the Achilles tendon. A group of 32 patients suffering from chronic tension-type headache was compared to 20 healthy controls and to 10 migraineurs without aura. Although individual values were widely scattered, pressure pain thresholds were on average significantly lower in chronic tension-type headache, not only at pericranial sites but also over the Achilles tendon. Only 50% of these patients had one or more pericranial thresholds 1.5 S.D. below the mean of controls. After muscular biofeedback therapy, all pain thresholds were on average increased. Along with results obtained previously, the present data support the hypothesis that diffuse disruption of central pain-modulating systems, possibly due to a modified limbic input to the brain-stem, is pivotal in the pathophysiology of chronic tension-type headache. [less ▲]

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See detailCephalothrix gen. nov. (Cyanobacteria): towards an intraspecific phylogenetic evaluation by multilocus analyses
Malone, Camila da Silva Francieli; Rigonato, Janaina; Laughinghouse, Haywood Dail et al

in International Journal of Systematic and Evolutionary Microbiology (2015), 65

For more than a decade, the taxonomy of Phormidiaceae has been problematic, since morphologically similar organisms represent phylogenetically distinct entities. Based on 16S rRNA analyses, the ... [more ▼]

For more than a decade, the taxonomy of Phormidiaceae has been problematic, since morphologically similar organisms represent phylogenetically distinct entities. Based on 16S rRNA analyses, the polyphyletic genus Phormidium and other gas-vacuolated oscillatorioids appear scattered throughout the cyanobacterial tree of life. Recently, several studies have focused on understanding the oscillatorioid taxa at the generic level. At the specific level, there are few studies characterizing cyanobacterial strains using combined datasets (morphology, ultrastructure, and molecular multi-locus analyses). Using a multi-facet approach, we propose a new, well-defined genus, Cephalothrix gen. nov., by analyzing seven filamentous strains morphologically 'intermediate' between gas-vacuolated taxa and Phormidium. Furthermore, we characterize two new species: Cephalothrix komarekiana (CCIBt 3277, CCIBt 3279, CCIBt 3523, CCALA 155, SAG 75.79, and UTEX 1580) and Cephalothrix lacustris (CCIBt 3261). The generic name and specific epithets were proposed under the provisions of the International Code of Nomenclature for algae, fungi, and plants. [less ▲]

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See detailCERA 1892-1998: the force of cooperative solidarity.
Geerkens, Eric ULg

in Revue Belge de Philologie et d'Histoire (2006), 84(4), 1356-1358

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See detailCeramic Biomaterials
Mainjot, Amélie ULg

Scientific conference (2015, October 29)

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See detailCeramic Biomaterials
Mainjot, Amélie ULg

Scientific conference (2016, November 10)

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See detailCeramic building material dating applied to early medieval building archaeology in North-Western France
Blain, Sophie ULg; Guibert, Pierre; Bouvier, Armel et al

in Biro, Katalin; Szilagyi, Veronika; Kreiter, Attila (Eds.) Proceedings of the Conference EMAC'07 (2009)

Ceramic Building Material (CBM) is often present in religious buildings of the pre-Norman period. The origin of the ceramic material is uncertain, indeed they have often been considered as salvaged Roman ... [more ▼]

Ceramic Building Material (CBM) is often present in religious buildings of the pre-Norman period. The origin of the ceramic material is uncertain, indeed they have often been considered as salvaged Roman material from abandoned, neighbouring sites. In order to review this long accepted hypothesis, we propose to apply the dating method of luminescence to ceramic material with the aim of identifying the date of manufacture of the material. Moreover, if the material appears to be contemporary to the construction, then the results could contribute to the dating of the original building and to the evaluation of its phasing. [less ▲]

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See detailCeramic Journal Bearing in Cryogenic Turbo-Pumps
Nelis, M.; Bozet, Jean-Luc ULg; BICKEL, M. et al

in European journal of mechanical and environmental engineering (2003), 48(no2), 73-80

The availability of components built in CMC technology forms in major areas a prerequisite for the realisation of future reusable launcher engines. Apart from the efforts to introduce CMC components in ... [more ▼]

The availability of components built in CMC technology forms in major areas a prerequisite for the realisation of future reusable launcher engines. Apart from the efforts to introduce CMC components in the hot areas of the engine like nozzles and thrust chambers there exists an important optimisation potential in the engines through the use of CMC components in (cryogenic) turbo-pumps. By replacement of the ball bearings in the pumps by journal bearings, a significantly higher lifetime can be obtained and the inherent limitation of the turning speed of the pumps can be widely extended. The CMC journal bearings of MAN have proven their quality and reliability in numerous applications in industrial pumps. Based on this experience a research program was initiated by DLR and funded by means of the BMBF and MAN to investigate the use of this bearing type under the conditions of a cryogenic turbo-pump. Major results are presented in this paper. [less ▲]

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See detailCeramic Materials for Dental Prostheses
MAINJOT, Amélie ULg

in Biomaterials (2014)

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See detailLa ceramica della Schola del Traiano a Ostia Antica
Deru, Xavier ULg; Desbat, Armand; Dienst, Simon ULg et al

in Forum Romanum Belgicum (in press)

Detailed reference viewed: 39 (5 ULg)