References of "2012"
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See detailLa dissuasion nucléaire du futur
Dumoulin, André ULg

in Défense et sécurité internationale hors série (2012), 23(23),

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See detailCalcium-induced conformational changes of the elicitor and membrane-active fengycin
Nasir, Mehmet Nail ULg; Lins, Laurence ULg; Ongena, Marc ULg et al

Poster (2012, April)

Fengycin is a natural lipopeptide synthetized by Bacillus subtilis strains. It is characterized by strong antifungal and low hemolytic activities. It seems also play a role in the promoting of elicitor ... [more ▼]

Fengycin is a natural lipopeptide synthetized by Bacillus subtilis strains. It is characterized by strong antifungal and low hemolytic activities. It seems also play a role in the promoting of elicitor activities of other compounds. The target of the biological activities of fengycin is supposed to be plasma membrane of sensitive cells. Even though the natural fengycin from has been discovered 25 years ago, nowadays, there is an increase of interest for this compound because of its potent applications. Until 15 years ago, the primary structure of fengycin was a matter of open debate before the publication of the corrected structure obtained by nuclear magnetic resonance and mass spectroscopy techniques. Although the infrared and ultraviolet absorption spectra of the lipopeptide were measured, no detailed analysis of these data was performed probably because of the unconventional sequence of the lipopeptide making these kinds of analyses complicated. In this work, our attempt was to analyze the conformational properties of fengycin as well as the calcium-induced changes using two complementary spectroscopic methods, Fourrier transformed infrared spectroscopy (FTIR) and circular dichroism (CD). In a first step, we have characterized the conformational properties of pure fengycin. The lipopeptide adopts turn conformation in trifluoroethanol, a membrane-mimicking solvent. D-aminoacids seem to be involved in intra molecular hydrogen bonds. In a second step, we have investigated the role played by Ca2+ ions on the possible conformational changes of fengycin. The addition of calcium gives rise to important modifications of the conformation. As fengycin has two glutamate residues, calcium is supposed to bind to their side chains. In conclusion, we have demonstrated that the conformation of fengycin is closely depending of the environment and the presence of calcium ions play an important role on the conformational changes of the lipopeptide. Moreover, spectra obtained both FTIR and CD methods ascertain the presence of turn conformation. [less ▲]

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See detailAdvances in proteomics for the FP7 Venomics project
Degueldre, Michel ULg; Quinton, Loïc ULg; De Pauw, Edwin ULg

Scientific conference (2012, April)

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See detailBelgium’s political elites and the crisis
Dodeigne, Jérémy ULg; Sinardet, Dave; Reuchamps, Min ULg

Conference (2012, April)

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See detailDegradation inhibitors and metal additives: impact on solvent degradation
Léonard, Grégoire ULg

Report (2012)

This report is part of a PhD thesis currently taking place at the University of Liège in collaboration with the company Laborelec. A Degradation Test Rig (DTR) has been built in order to evaluate solvent ... [more ▼]

This report is part of a PhD thesis currently taking place at the University of Liège in collaboration with the company Laborelec. A Degradation Test Rig (DTR) has been built in order to evaluate solvent degradation in CO2 capture conditions. Details about degradation effects and about the DTR may be found in a previous report (PhD mid-term report, G. Léonard, 2011). Experiments to study the effect of process conditions on degradation are in progress with 2-ethanolamine (MEA) as benchmark solvent. This report presents first a brief overview of the different degradation mechanisms and associated products, followed by a literature review about metal influence on MEA degradation and a state of the art review about degradation inhibitors. [less ▲]

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See detail"Le lieu géométrique de toutes les agitations" : écrivains fictifs et prix littéraires
Dozo, Björn-Olav ULg; Lacroix, Michel

in Dozo, Björn-Olav; Glinoer, Anthony; Lacroix, Michel (Eds.) Imaginaires de la vie littéraire. Fiction, figuration, configuration (2012)

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See detailBriefe an Casanova
Roggendorf, Cécile de; Viehöver, Vera ULg

E-print/Working paper (2012)

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See detailDo Identities Matter More than Party Interests in Ethno-Territorial Politics? Conceptual and Empirical Insights from Multilevel and Deeply Divided Belgium
Reuchamps, Min ULg; Dodeigne, Jérémy ULg; Sinardet, Dave

Conference (2012, April)

In territorial politics, identities are a chief variable of the political life. By definition, the ethno-linguistic identities play(ed) an important role in the political dynamics of several highly ... [more ▼]

In territorial politics, identities are a chief variable of the political life. By definition, the ethno-linguistic identities play(ed) an important role in the political dynamics of several highly divided societies. In most cases, the institutional design is in fact adapted or has been adapted to the ethno-linguistic divisions of the country. According to quite a few scholars, it is especially true for political elites who are not only shaped by this variable but also use this variable to legitimate their attitudes and actions. Therefore political elites of each ethno-linguistic group appeared to behave as monolithic blocks, standing against each other along ethno-linguistic lines. Nonetheless, this view neglects the role of party interests in explaining the behaviors of political elites. An important question for ethno-territorial politics should be raised: do identities matter more that party interests? The current reform of the – multilevel and deeply-divided – Belgian state provides a fertile ground to test this hypothesis. To what extent, party interests can account for political elites’ position in the debate about the 6th Belgian constitutional reform? To explore these questions, we surveyed every representative of Belgium’s seven legislative assemblies with a standardized questionnaire (Summer 2011). This research will help us apprehend the rationale behind political elites’ attitudes – be it identities, party interests or a mix of them – negotiating the new boundaries of the state and above all shed light on territorial politics in Europe. So doing, this paper aims at contributing to the debate that explores the possibility of a unified analytical approach bridging ethno-territorial politics and party politics. [less ▲]

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See detailRéforme de la mesure générale anti-abus (C.I.R., C. Enr., C. Succ.): commentaires provisoires
Bourgeois, Marc ULg; Nollet, Aymeric ULg

in Leleu, Yves-Henri (Ed.) Chroniques notariales (2012)

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See detailSPM for MEG/EEG
Phillips, Christophe ULg

Scientific conference (2012, April)

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See detailCumulative pregnancy rate after ICSI-IVF in patients with colorectal endometriosis: results of a multicentre study.
Ballester, Marcos; d'Argent, EM; Morcel, K et al

in Human Reproduction (2012), 27(4), 1043-9

BACKGROUND: There is currently no consensus about indications for surgery for infertility associated with colorectal endometriosis. The aim of this study was to evaluate cumulative pregnancy rates (CPRs ... [more ▼]

BACKGROUND: There is currently no consensus about indications for surgery for infertility associated with colorectal endometriosis. The aim of this study was to evaluate cumulative pregnancy rates (CPRs) after ICSI-IVF cycles in patients with colorectal endometriosis and to identify determinant factors of fertility outcome. METHODS: Prospective longitudinal multicentre study from January 2005 to June 2011. We included 75 patients with colorectal endometriosis and proved infertility without prior surgery for deep infiltrating endometriosis. Univariable analysis was used to identify determinant factors of pregnancy rate. CPR was calculated using cumulative-incidence methods from log-rank test and Kaplan-Meier curves. For multivariable analysis, Cox proportional hazards model was used. RESULTS: For CPR per patient analysis, the total number of cycles was 113 and the median number of cycles per patient was 1 (range: 1-3). In the whole population the CPR per patient after three ICSI-IVF cycles was 68.6%. The CPR for patients with or without associated adenomyosis was 19 and 82.4%, respectively (P= 0.01). In addition, a patient age over 35 years (P= 0.02) and anti-Mullerian hormone serum level under 2 ng/ml (P= 0.02) were associated with a decreased CPR per patient. At multivariable analysis, adenomyosis [HR = 0.34, 95% CI (0.12-0.99), P= 0.49] was associated with a decreased CPR. CONCLUSIONS: Our data confirm that ICSI-IVF offers a high CPR per patient. However, determinant factors of CPR should be taken into account when informing couples of their options. [less ▲]

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See detailLa culturalisation du politique
Jacquemain, Marc ULg

Article for general public (2012)

Les valeurs que nous croyons enracinées dans une partie du champ idéologique deviennent de plus en plus nomade. On examine brièvement pourquoi la laïcité, valeur historiquement portée par la gauche, est ... [more ▼]

Les valeurs que nous croyons enracinées dans une partie du champ idéologique deviennent de plus en plus nomade. On examine brièvement pourquoi la laïcité, valeur historiquement portée par la gauche, est aujourd'hui intégréee au dispositif idéologique de la droite la plus radicale. On examine brièvement le cas de la laïcité. [less ▲]

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See detailMechanical Ventilation During Anaesthesia: Pathophysiology and Clinical Implications
Dresse, Caroline; JORIS, Jean ULg; HANS, Grégory ULg

in Trends in Anaesthesia and Critical Care (2012), 2(2), 71-75

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See detailIntegrated control and structural analysis of DFIG wind turbines using a monolithic approach
Chen, Qiongzhong ULg; D'Ambrosio, Flavio; Defourny, Michel et al

in Proceedings of the European Wind Energy Conference and Exhibition 2012 (EWEA 2012) (2012, April)

Design of wind turbines requires the coupled analysis among the mechanical, control and aerodynamic subsystems. Different from previous research, which either uses a complicated mechanical model with a ... [more ▼]

Design of wind turbines requires the coupled analysis among the mechanical, control and aerodynamic subsystems. Different from previous research, which either uses a complicated mechanical model with a simple control system model, or vice versa, this paper studies the coupling of subsystems’ dynamics using a high-fidelity aeroelastic model of wind turbine and a detailed analytical model of control generating systems. A monolithic time integration approach is applied so that better numerical accuracy and stability are achieved. Control strategies on power optimization are discussed taking into account the influence of structural flexibility. Simulation examples are given on both stable and turbulent wind situation. [less ▲]

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See detailMultidisciplinary and Evidence-based Method for Prioritizing Diseases of Food-producing Animals and Zoonoses
Humblet, Marie-France ULg; Vandeputte, Sébastien ULg; Albert, Adelin ULg et al

in Emerging Infectious Diseases (2012), 18(4),

To prioritize 100 animal diseases and zoonoses in Europe, we used a multicriteria decision-making procedure based on opinions of experts and evidence-based data. Forty international experts performed ... [more ▼]

To prioritize 100 animal diseases and zoonoses in Europe, we used a multicriteria decision-making procedure based on opinions of experts and evidence-based data. Forty international experts performed intracategory and intercategory weighting of 57 prioritization criteria. Two methods (deterministic with mean of each weight and probabilistic with distribution functions of weights by using Monte Carlo simulation) were used to calculate a score for each disease. Consecutive ranking was established. Few differences were observed between each method. Compared with previous prioritization methods, our procedure is evidence based, includes a range of fields and criteria while considering uncertainty, and will be useful for analyzing diseases that affect public health [less ▲]

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See detailEngineering geological mapping in Wallonia (Belgium) : present state and recent computerized approach
Delvoie, Simon ULg; Radu, Jean-Pol ULg; Ruthy, Ingrid ULg et al

Poster (2012, April)

An engineering geological map can be defined as a geological map with a generalized representation of all the components of a geological environment which are strongly required for spatial planning ... [more ▼]

An engineering geological map can be defined as a geological map with a generalized representation of all the components of a geological environment which are strongly required for spatial planning, design, construction and maintenance of civil engineering buildings. In Wallonia (Belgium) 24 engineering geological maps have been developed between the 70s and the 90s at 1/5,000 or 1/10,000 scale covering some areas of the most industrialized and urbanized cities (Liège, Charleroi and Mons). They were based on soil and subsoil data point (boring, drilling, penetration test, geophysical test, outcrop. . . ). Some displayed data present the depth (with isoheights) or the thickness (with isopachs) of the different subsoil layers up to about 50 m depth. Information about geomechanical properties of each subsoil layer,useful for engineers and urban planners, is also synthesized. However, these maps were built up only on paper and progressively needed to be updated with new soil and subsoil data. The Public Service of Wallonia and the University of Liège have recently initiated a study to evaluate the feasibility to develop engineering geological mapping with a computerized approach. Numerous and various data (about soil and subsoil) are stored into a georelational database (the geotechnical database – using Access, Microsoft®). All the data are geographically referenced. The database is linked to a GIS project (using ArcGIS, ESRI®). Both the database and GIS project consist of a powerful tool for spatial data management and analysis. This approach involves a methodology using interpolation methods to update the previous maps and to extent the coverage to new areas. The location (x, y, z) of each subsoil layer is then computed from data point. The geomechanical data of these layers are synthesized in an explanatory booklet joined to maps. [less ▲]

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See detailMeasuring the phase of the scattering amplitude with vortex beams
Ivanov, Igor ULg

in Physical Review. D : Particles and Fields (2012), 85(7), 07600110

We show that colliding vortex beams instead of (approximate) plane waves can lead to a direct measurement of how the overall phase of the plane wave scattering amplitude changes with the scattering angle ... [more ▼]

We show that colliding vortex beams instead of (approximate) plane waves can lead to a direct measurement of how the overall phase of the plane wave scattering amplitude changes with the scattering angle. Since vortex beams are coherent superpositions of plane waves with different momenta, their scattering amplitude receives contributions from plane wave amplitudes with distinct kinematics. These contributions interfere, leading to the measurement of their phase difference. Although interference exists for any generic wave packet collision, we show that using vortex beams dramatically enhances sensitivity to the phase in comparison with nonvortex beams. Since the overall phase is inaccessible in a plane wave collision, this measurement would be of great importance for a number of topics in hadronic physics, for example, meson production in the resonance region, physics of nucleon resonances, and small angle elastic hadron scattering. [less ▲]

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See detailLes dates des élections depuis 1830
Bouhon, Frédéric ULg

in Bouhon, Frédéric; Reuchamps, Min (Eds.) Les systèmes électoraux de la Belgique (2012)

Cette contribution constitue une annexe d'un ouvrage collectif sur les systèmes électoraux de la Belgique. Elle vise à présenter, sous la forme de tableaux, les dates des élections en Belgique à tous les ... [more ▼]

Cette contribution constitue une annexe d'un ouvrage collectif sur les systèmes électoraux de la Belgique. Elle vise à présenter, sous la forme de tableaux, les dates des élections en Belgique à tous les niveaux de pouvoir depuis 1830. [less ▲]

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See detailLa médiation scolaire. Un regard des acteurs sur leurs pratiques
Kuty, Olgierd ULg; Schoenaers, Frédéric ULg; Dubois, Christophe ULg et al

Book published by Presses Universitaires de Liège (2012)

Dans nos sociétés en réseaux qui se caractérisent par un pluralisme normatif, on peut faire société sans partager des valeurs communes. Le fonctionnement des institutions scolaires illustre les nouveaux ... [more ▼]

Dans nos sociétés en réseaux qui se caractérisent par un pluralisme normatif, on peut faire société sans partager des valeurs communes. Le fonctionnement des institutions scolaires illustre les nouveaux modes de régulation des tensions, de la diversité, de l'intégration, etc. désormais à l’œuvre. C'est dans ce contexte que le concept de médiation a fait son apparition dans nos écoles, comme dispositif d'apaisement ou de maintien du lien social. La diffusion de tels dispositifs doit beaucoup à la création de services centraux puis locaux de médiation, tout comme au travail de nombreux médiateurs qui ont progressivement investi le champ scolaire. Cet ouvrage constitue une exploration du développement de leur fonction et il rend compte de la culture professionnelle qui les anime. Cette exploration conduit à s'interroger sur le processus de diffusion de la médiation scolaire tout en contextualisant cette dernière dans le spectre plus large de la médiation en général, un concept désormais répandu dans les champs familiaux, judiciaires, sanitaires, administratifs, politiques et sociaux les plus divers. [less ▲]

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