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See detailWhich rules shape EU's external governance? The patterns of rule selection in foreign and security policies
Barbé, Esther; Costa, Oriol; Herranz-Surrallés, Anna et al

in Lavenex, Sandra; Schimmelfennig, Frank (Eds.) EU External Governance: Projecting EU Rules beyond Membership (2010)

This article addresses a particular aspect of EU external governance: rule selection. Drawing on institutionalist and power-based explanations we put forward an account for the choice of the specific ... [more ▼]

This article addresses a particular aspect of EU external governance: rule selection. Drawing on institutionalist and power-based explanations we put forward an account for the choice of the specific rules that guide policy convergence between the EU and third countries. The proposed analytical framework broadens the scope of the studies examining the externalization of EU rules beyond its borders, in that we claim that the EU can promote policy convergence using rules other than the EU's. More specifically, the EU also promotes policy convergence on the basis of international and bilaterally developed rules. These analytical claims for explaining rule selection are checked against empirical data. We compare policy convergence between the EU and four neighbouring countries (Morocco, Ukraine, Georgia, and Russia) in three subfields within foreign and security policy: foreign policy dialogue, control of export of dual-use goods in the context of non-proliferation of weapons of mass destruction, and crisis management. [less ▲]

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See detailFormer des enseignants francophones pour de nouveaux publics
Defays, Jean-Marc ULg

in Cadet-Joseph, Lucile; Pellegrini, Florence (Eds.) Situation et perspectives d'évolution des départements d'études française des universités européennes (2010)

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See detailCyprinid herpesvirus 3
Michel, Benjamin; Fournier, Guillaume; Lieffrig, François et al

in Emerging Infectious Diseases (2010), 16

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See detailUnit stream power as a base for regional river typology
Hallot, Eric ULg; Houbrechts, Geoffrey ULg; Levecq, Yannick et al

Poster (2010)

In order to assess the hydromorphological quality of surface waters, stakeholders need river typologies accurate and functional enough to be a really efficient management tool. From a typological study ... [more ▼]

In order to assess the hydromorphological quality of surface waters, stakeholders need river typologies accurate and functional enough to be a really efficient management tool. From a typological study based a broad set of hydromorphological field data, we have shown that some variables, like the unit stream power (), are particularly appropriate to describe the dynamics of a river. Initial results of repeated measurement in more than 80 sites revealed a regional differentiation based on critical values of stream power at bankfull discharge. The aim of this study is to present a unit stream power mapping for the whole network based on general equation  =  g Q S / w, with  the density of water, g the acceleration due to gravity, Q the discharge, S the slope and w the channel width). Slope is extracted from DEM. Bankfull discharge and width estimations are furnished by allometric equations using the watershed area. Different coefficients are used according to regional differentiations based on bedload size and watershed permeability. The statistical significance of all equations was tested by covariance analysis. A correction taking into account the used log-log scale, was also applied to the obtained allometric equations (Fergusson, 1988). Using a 30 x 30 meters DEM, GIS routines were developed. A first one automatically sectorizes the network and a second evaluates the unit streamspower in each location. We propose a 7-level classification in accordance with the associated morphological processes describe in the literature (from fixed meanders to step-pools system). The mapping unit starts at the Strahler second order. Our results not only support a regional typology, but moreover allow us to describe natural regions in function of river dynamics and to estimate the resistance of restoration works like vegetal techniques. It can also provide estimates of the excess stream power (the fraction of the actual stream power exceeding the power at which bedload particles start to move). (Fergusson, R.,I., 1988. River loads underestimated by rating curves, Water Resour. Res., 24(7), 1217–1219.) [less ▲]

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See detailFilles et garçons face à l'orientation scientifique : stéréotypes en tout genre
Goffin, Christelle ULg; Quittre, Valérie ULg; Lafontaine, Dominique ULg

in Gavray, Claire; Adriaenssens, Alexandra (Eds.) Une fille = un garçon ? Identifier les inégalités de genre à l'école pour mieux les combattre (2010)

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See detailSignspeak--understanding, recognition, and translation of sign languages
Dreuw, Philippe; Forster, Jens; Gweth, Yannick et al

in 4th Workshop on the Representation and Processing of Sign Languages: Corpora and Sign Language Technologies (2010)

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See detailContinuous glucose monitoring reduces both hypoglycaemia and HbA1c in hypoglycaemia-prone type 1 diabetic patients treated with a portable pump.
Radermecker, Régis ULg; Saint-Remy, Annie ULg; Scheen, André ULg et al

in Diabètes & Métabolism (2010), 36(5), 409-13

AIM: This study aimed to assess the effectiveness of continuous glucose monitoring (CGM) for glucose control in type 1 diabetic patients treated by continuous subcutaneous insulin infusion (CSII) and ... [more ▼]

AIM: This study aimed to assess the effectiveness of continuous glucose monitoring (CGM) for glucose control in type 1 diabetic patients treated by continuous subcutaneous insulin infusion (CSII) and presenting with frequent hypoglycaemic episodes. METHODS: Thirteen patients with type 1 diabetes (diabetes duration: 25+/-15 years; CSII duration: 5.5+/-7.0 years), with more than six recorded capillary blood glucose (CBG) values <60 mg/dL, according to their metres for the past 14 days, were offered the permanent use of a CGM device (Guardian RT((R)), Medtronic) plus ongoing self-monitoring of blood glucose (SMBG) for 12 weeks, followed by a 12-week crossover period of SMBG only, or vice versa. Glucose control, determined by recorded 14-day CBG values <60 mg/dL and HbA(1c) levels, and quality of life according to the Diabetes Quality of Life (DQOL) questionnaire, were assessed at baseline, and after 12- and 24-week follow-ups. RESULTS: Four patients withdrew from the study during the first period (of whom three were using CGM). In the nine study completers, the number of low CBG values decreased significantly from 13.9+/-9.2 to 7.6+/-6.8 (P=0.011) when patients used CGM, in either the initial or final trial period, while a decrease in HbA(1c) from 8.3+/-0.7 to 7.7+/-0.6% (P=0.049) was also observed, in contrast to the absence of any significant differences during the SMBG-only period. DQOL scores were also essentially unaffected. CONCLUSION: This pilot observational study supports the hypothesis that CGM use can significantly improve overall glucose control while reducing hypoglycaemic episodes in hypoglycaemia-prone type 1 diabetic patients treated by CSII. [less ▲]

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See detailModelling BSE trend over time in europe, a risk assessment perspective
Ducrot, C.; Sala, C.; Ru, G. et al

in European Journal of Epidemiology (2010)

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See detailFunctionalization of carbon xerogels for the preparation of Pd/C catalysts by grafting of Pd complex
Diverchy, Chantal; Hermans, Sophie; Job, Nathalie ULg et al

in Studies in Surface Science and Catalysis (2010), 175

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See detailOn a class of micromechanical damage models with initial stresses for geomaterials
Levasseur, Séverine ULg; Collin, Frédéric ULg; Charlier, Robert ULg et al

in Mechanics Research Communications (2010), 37

In this paper, we extend a class of micromechanical damage models by including initial stresses. The proposed approach is based on the solution of the Eshelby inhomogeneous inclusion problem in the ... [more ▼]

In this paper, we extend a class of micromechanical damage models by including initial stresses. The proposed approach is based on the solution of the Eshelby inhomogeneous inclusion problem in the presence of a prestress (in the matrix), adapted for elastic voided media. The closed form expression of the corresponding energy potential is used as the basis of various isotropic damage models corresponding to three standard homogenization schemes. These models are illustrated by considering isotropic tensile loadings with different initial stresses. Finally, still in the isotropic context, we provide an interpretation of the macroscopic damage model formulated by Halm-Dragon (1996) by briefly connecting it to the present study. [less ▲]

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See detailHydro-mechanical modelling of the Excavation Damaged Zone around an underground excavation at Mont Terri Rock Laboratory
Levasseur, Séverine ULg; Charlier, Robert ULg; Frieg, Bernd et al

in International Journal of Rock Mechanics & Mining Sciences (2010), 47(3), 414-425

A zone with significant irreversible deformations and significant changes in flow and transport properties is expected to be formed in indurated clay around underground excavations. The stress ... [more ▼]

A zone with significant irreversible deformations and significant changes in flow and transport properties is expected to be formed in indurated clay around underground excavations. The stress perturbation around the excavation could lead to a significant increase of the permeability, related to diffuse and/or localized crack propagation in the material. The main objective of the study is to model these processes at large scale in order to assess their impacts on the performance of radioactive waste geological repositories. This paper concerns more particularly the hydro-mechanical modelling of a long term dilatometer experiment performed in Mont Terri Rock Laboratory in Switzerland within the Selfrac Project. The proposed model defines the permeability as a function of the aperture of the cracks that are generated during the excavation. With this model, the permeability tensor becomes anisotropic. Advantages and drawbacks of this approach are described thanks to the results of the Selfrac long term dilatometer experiment. [less ▲]

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See detailA randomized, open-label, multicenter study evaluating the efficacy of peginterferon alfa-2a versus interferon alfa-2a, in combination with ribavirin, in naïve and relapsed chronic hepatitis C patients.
Nevens, F.; Van Vlierberghe, H.; D'Heygere, F. et al

in Acta Gastro-Enterologica Belgica (2010), 73

Background/Aims : A large multicenter trial to compare the efficacy of peginterferon alfa-2a with interferon alfa-2a, in combination with ribavirin, in chronic hepatitis C patients. Efficacy data for ... [more ▼]

Background/Aims : A large multicenter trial to compare the efficacy of peginterferon alfa-2a with interferon alfa-2a, in combination with ribavirin, in chronic hepatitis C patients. Efficacy data for prior relapsers are reported because treatment recommendations for this patient population are not well defined. Patients and methods : This study was a multicenter, prospective, randomized clinical trial. The primary efficacy endpoint was sustained virologic response in naïve patients (n = 348) and relapsers (n = 95). Results : Sustained virologic response rates were similar in naïve patients and relapsers, both for non-pegylated and pegylated interferon (respectively 27 and 26% and 54 and 43%). Pegylated interferon given for 48 weeks did not improved the relapse rate : 15.9 and 27.3% for non-pegylated and 16.7 and 30.4% for pegylated interferon, naïve vs relapsers respectively. Stepwise logistic regression analysis revealed a significant association between slow response (detectable HCV RNA at week 12 and undetectable at week 24) and relapse in patients with an end-of-treatment response (55% versus 13% respectively ; p = 0.02 ; odds ratio = 6.07). Conclusions : This trial confirms the value of using peginter - feron alfa-2a in both naïve and relapsed patients and provides support for a more tailored approach to treatment for relapsers and particulary for patients with a slow viral response. (Acta gastro enterol. belg., 2010, 73, 223-228). [less ▲]

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See detailBrainstem specific warping improves locus coeruleus functional imaging in humans
Balteau, Evelyne ULg; Schmidt, Christina ULg; Maquet, Pierre ULg et al

in Proceedings of the International Society for Magnetic Resonance in Medicine ... Scientific Meeting and Exhibition. International Society For Magnetic Resonance in Medicine. Scientific Meeting and Exhibition (2010)

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See detailThe California Verbal Learning Test and other standard clinical neuropsychological tests to predict conversion from mild memory impairment to dementia.
Lekeu, Françoise ULg; Magis, Delphine ULg; Marique, Patricia et al

in Journal of Clinical and Experimental Neuropsychology (2010), 20

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See detailExplicit Solution to the Full Nonlinear Problem for Satellite Formation-keeping
Cho, Hancheol ULg; Udwadia, Firdaus

in Acta Astronautica (2010), 67(3-4), 369-387

This paper presents simple and exact formation-keeping guidance schemes that use a new method that is rooted in some recent advances in analytical dynamics. As a result of this new approach, explicit ... [more ▼]

This paper presents simple and exact formation-keeping guidance schemes that use a new method that is rooted in some recent advances in analytical dynamics. As a result of this new approach, explicit control inputs to exactly maintain a given formation configuration are easily determined using continuous thrust propulsion systems. The complete nonlinear problem is addressed, and no linearizations and/or approximations are made. The approach provides a marked improvement over existing results in that the control forces, which cause geometric formation-keeping constraints to be exactly satisfied for arbitrary reference orbits, are found in closed form. For Keplerian reference orbits, a much simpler and explicit expression for the control needed to exactly satisfy formation-keeping constraints than hereto available is obtained. The paper also includes explicit control results when the follower is inserted into orbit with incorrect initial conditions, as usually happens in practice. The Hill reference frame, which is often more intuitive for formation-keeping, is used in the analysis. While this paper takes an example of a projected circular formation, the methodology that is developed can be applied to any desired configuration or orbital requirements. Extensive computational simulations are performed to demonstrate the ease of implementation, and the numerical accuracy provided by the approach developed herein. [less ▲]

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See detailStochastic analysis of a stadium roof from deterministic wind tunnel measurements
Blaise, Nicolas ULg; Denoël, Vincent ULg

in 13th International Conference on Wind Engineering (2010)

Dynamic analyses of structures under buffeting wind loads can be performed in a deterministic (Clough and Penzien, 1997) or stochastic (Preumont, 1994) context, both with a modal approach for ... [more ▼]

Dynamic analyses of structures under buffeting wind loads can be performed in a deterministic (Clough and Penzien, 1997) or stochastic (Preumont, 1994) context, both with a modal approach for computational efficiency reasons. In the first option, the forces are deterministically given, and the uncoupled modal equations of motion are solved either in the time domain with a stepby- step method, either in the frequency domain, with Fourier transformation. In the second option, the analysis relies on the determination of the Power Spectral Density (PSD) matrix of the structural response given that of the loading. The choice of one or another method usually depends on whether the loading is provided in the time or frequency domain and as a deterministic (a single time history) or stochastic manner. From a designer’s point of view, the wind loading can be defined using design codes (e.g. Eurocode, 2005) where analytical expressions of (i) the PSD of wind velocities (Davenport, Von Karman, etc) (ii) the coherence functions and (iii) the pressure coefficients are given to compute, finally, (iv) the PSD of the aerodynamic pressures. Design engineers are usually familiar with this probabilistic approach. Alternatively, the design may be conducted from aerodynamic pressures measured in a wind tunnel. This approach is more realistic than the aforementioned codified procedure since a number of phenomena as (a) the aerodynamic instabilities, (b) aerodynamic admittance (Scanlan and Jones, 1999), (c) site effects are taken into account. Pressures are thus given as unique (deterministic) time histories at each sensor. In a Finite Element context and a modal analysis, the generalized forces are computed from the measured pressures. With the firm wish to perform the analysis in a stochastic manner (for a number of good reasons mentioned next), we suggest to fit a probabilistic model to the measured data. Such a model could be fitted to the measured pressures right away, or any other subsequent quantity such as the generalized forces. The following discussion is about the most favorable quantity that has to be fitted and how to do it appropriately in view of typical measurement imperfections. [less ▲]

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See detailFunctional interplay between macroH2A and Polycomb Repressive Complexes
Creppe, Catherine ULg; Valero, Vanesa; Di Croce, Luciano et al

Poster (2010)

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