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See detailClinical Tools for A Personalized Treatment Strategy in Depression.
Desseilles, Martin ULg; Witte, Janet; Trina, E. Chang et al

in Current Psychiatry (2012), 11(3), 26-33

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See detailA mixed solid-shell element for the analysis of laminated composites
Rah, Kamran; Paepegem, Wim; Habraken, Anne ULg et al

in International Journal for numerical methods in engineering (2012), 89(7), 805-828

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See detailLa prothèse fixe minimalement invasive.
KOENIG, Vinciane ULg

Conference (2012, March)

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See detailSport (and Exercise) Pedagogy and its interest in the fields of PE teaching, sport coaching and physical activity/health
Cloes, Marc ULg

Conference (2012, March)

Within the specialist seminar, the aims of this presentation were to share a personal conception of Sport (& Exercise) Pedagogy, to illustrate some current challenges for researchers of this specific ... [more ▼]

Within the specialist seminar, the aims of this presentation were to share a personal conception of Sport (& Exercise) Pedagogy, to illustrate some current challenges for researchers of this specific field of Sport Sciences, and to suggest some approaches to develop in the future. In the first part, an emphasis will be set on the analysis of the papers presented during the ARIS' congresses. It will be the opportunity to bridge the gap between Anglo-Saxon authors and those from the French speaking world, in order to underline the existence of a research corpus that is unknown by those who are not able to read another language than English. [less ▲]

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See detailHubert Juin
Stienon, Valérie ULg

in Mathis-Moser, Ursula; MERTZ-BAUMGARTNER, Birgit (Eds.) Passages et ancrages en France. Dictionnaire des écrivains migrants de langue française (1981-2011) (2012)

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See detailSuccessful treatment of equine sarcoids with cisplatin electrochemotherapy: a retrospective study of 48 cases.
Tamzali, Y; Borde, Laura ULg; Rols, MP et al

in Equine Veterinary Journal (2012), 44(2), 214-220

REASONS FOR PERFORMING STUDY: Sarcoids are the commonest form of equine skin tumour. Several therapeutic measures have been described but none is considered to be universally effective ... [more ▼]

REASONS FOR PERFORMING STUDY: Sarcoids are the commonest form of equine skin tumour. Several therapeutic measures have been described but none is considered to be universally effective. Electrochemotherapy (ECT) is a new anticancer therapy that utilises electrical field pulses to induce increased cell membrane permeability to antitumour hydrophilic drugs, such as cisplatin. The increased intracellular concentration of the drugs has a significant therapeutic benefit. The procedure has not been previously reported in a large number of horses. OBJECTIVE: To validate ECT as a novel alternative treatment for equine sarcoids. METHODS: A retrospective study evaluating the efficacy of cisplatin ECT in the treatment of equine sarcoids was performed. Electrochemotherapy treatments were applied under general anaesthesia at 2 week intervals with or without prior excision or debulking. Electric pulses were directly applied to the lesions following intra-tumoural injections of an aqueous solution of cisplatin. RESULTS: One-hundred-and-ninety-four sarcoids on 34 horses, 2 ponies, 11 donkeys and one mule were treated with ECT. The 4 year nonrecurrence rate was 97.9% for animals (47/48) and 99.5% (193/194) for tumours. When ECT was used as a single treatment, a significant influence of tumour size (ρ= 0.55) on the number of treatments required for cure was shown. When prior surgery was performed, there was a significant influence (P<0.001) of the excision quality (complete or incomplete) and the healing mode (closed or open wound) on the number of treatments. The most common adverse effect was a slight oedematous reaction for lesions located on thin skin regions. CONCLUSION AND CLINICAL RELEVANCE: Results demonstrate that ECT, with or without concurrent tumour debulking, is an effective alternative for treatment of equine sarcoids [less ▲]

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See detailEcological review of black-grass (Alopecurus myosuroides Huds.) propagation abilities in relationship with herbicide resistance
Maréchal, Pierre-Yves ULg; Henriet, François; Vancutsem, Françoise ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2012), 16(1),

Alopecurus myosuroides Huds. (vulpin des champs) a toujours été une préoccupation majeure pour les céréaliculteurs et le développement de la résistance aux herbicides n’améliore pas la situation. Cet ... [more ▼]

Alopecurus myosuroides Huds. (vulpin des champs) a toujours été une préoccupation majeure pour les céréaliculteurs et le développement de la résistance aux herbicides n’améliore pas la situation. Cet article de synthèse résume les différents critères impliqués dans les modèles de dispersion d’individus de vulpin des champs au sein d’un champ ou d’une population sensible. Pour ce faire, le cycle complet du vulpin est décrit de la semence à la semence. Depuis le développement végétatif précoce jusqu’à la chute de la graine, chaque étape est décrite en prenant en compte comment la résistance aux herbicides peut influencer ou exercer un impact différent par rapport à des plantes sensibles. [less ▲]

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See detailFrom field to laboratory studies: case of selenium in Chelonians
Dyc, Christelle ULg; Thomé, Jean-Pierre ULg; Das, Krishna ULg

in Proceedings of the 32nd Annual Symposium on Sea Turtle Biology and Conservation (2012, March)

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See detailFidelity for kicked atoms with gravity near a quantum resonance
Dubertrand, Rémy ULg; Guarneri, I; Wimberger, S

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2012), 85

Kicked atoms under a constant Stark or gravity field are investigated for experimental setups with cold and ultracold atoms. The parametric stability of the quantum dynamics is studied using the fidelity ... [more ▼]

Kicked atoms under a constant Stark or gravity field are investigated for experimental setups with cold and ultracold atoms. The parametric stability of the quantum dynamics is studied using the fidelity. In the case of a quantum resonance, it is shown that the behavior of the fidelity depends on arithmetic properties of the gravity parameter. Close to a quantum resonance, the long-time asymptotics of the fidelity is studied by means of a pseudoclassical approximation introduced by Fishman et al. [J. Stat. Phys. 110, 911 (2003)]. The long-time decay of fidelity arises from the tunneling out of pseudoclassical stable islands, and a simple ansatz is proposed which satisfactorily reproduces the main features observed in numerical simulations. [less ▲]

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See detailFrom direct to inverse analysis in flexible multibody dynamics
Bruls, Olivier ULg

Conference (2012, March)

Today, state-of-the-art simulation packages in flexible multibody dynamics allow the high-fidelity analysis of industrial mechanisms and machines in many application fields including robotics, automotive ... [more ▼]

Today, state-of-the-art simulation packages in flexible multibody dynamics allow the high-fidelity analysis of industrial mechanisms and machines in many application fields including robotics, automotive systems, aeronautics, deployable structures or wind turbines. The dynamic response of a given system can thus be evaluated in the time-domain for given load cases and given initial values. However, in many practical cases, the engineer does not have a precise knowledge of the mechanical design, the loading conditions and the initial state. This situation occurs for example in structural optimization, optimal control, experimental identification and health monitoring problems. The complexity of simulation codes and the computational cost of high-fidelity models are still important obstacles for the development of efficient resolution methods for these inverse problems. A current challenge is thus to elaborate simplified and more efficient modelling strategies in flexible multibody dynamics in order to enable the development of inverse analysis methods. The talk is divided into three parts. The first part provides an overview of available simulation techniques for flexible mechanisms with a particular emphasis on finite element-based approaches and time integration methods. Some illustrations are presented in the fields of deployable structures, vehicle dynamics and wind turbines. In the second part, optimization problems in flexible multibody dynamics are addressed and solved using gradient-based methods. Efficient methods for sensitivity analysis are discussed and special problems are treated such as the structural optimization of mechanical components or the numerical solution of inverse dynamics problems. The third part discusses a recently-developed Lie group approach which allows the formulation of the equations of motion of a multibody system in a parameterization-free setting. Based on this general formalism, which is characterized by an increased modularity and a reduced complexity, a large variety of Lie group solvers are foreseen not only for time integration but also for model reduction, sensitivity analysis and optimization. [less ▲]

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See detailTi alloys processed by selective laser melting and by laser cladding: microstructures and mechanical properties
Mertens, Anne ULg; Contrepois, Quentin ULg; Dormal, Thierry ULg et al

in proceedings of 12th EUROPEAN CONFERENCE ON SPACECRAFT STRUCTURES, MATERIALS & ENVIRONMENTAL TESTING, Noordwijk 20-23 mars 2012 (2012, March)

Selective laser melting (SLM) and laser cladding were developed in the late 1990s as economic layer-by-layer near-net-shape processes allowing for the production – and also, in the case of laser cladding ... [more ▼]

Selective laser melting (SLM) and laser cladding were developed in the late 1990s as economic layer-by-layer near-net-shape processes allowing for the production – and also, in the case of laser cladding, the restoration - of complex parts. Both techniques involve the melting of a metallic powder with a laser. In the case of SLM, the metallic powder is deposited layer by layer and then molten locally according to the desired shape, whereas in laser cladding the metallic powder is projected onto a substrate through a tube coaxial with the laser. In both processes, the metallic melt pools then cool down and solidify very rapidly, thus producing strongly out of equilibrium microstructures that might exhibit high internal stresses. In the present work, efforts have been made to enhance the flexibility of the laser cladding process: a second laser with a maximum power of 300W was installed beside the original laser (with a higher maximum power of 2000W), thus allowing for the processing of parts with thinner walls and/or coatings. Moreover, flexibility was also improved in relation with the geometry of the parts by use of a 5-axes displacement control. Samples of alloy Ti-6Al-4V, that is widely used in the aeronautic industry due to its high specific strength, have been processed both by SLM and by laser cladding. The resulting microstructures have been characterised in details by optical microscopy, SEM and EBSD so as to allow for a better understanding of the solidification process and of the subsequent phase transformations taking place upon cooling for both techniques. The influence of processing parameters such as the orientation of the deposition of the successive powder layers on the mechanical properties was also investigated by means of uniaxial tensile testing performed on samples with different deposition orientations in regard to the direction of mechanical solicitation. Moreover, some of the samples for mechanical testing had undergone an annealing treatment at 640°C for 4 hours to relieve internal stresses, in order to assess more precisely the effect of those stresses on the tensile properties. [less ▲]

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See detailFair Trade Organizations and Social Enterprise. Social Innovation through Hybrid Organization Models
Huybrechts, Benjamin ULg

Book published by Routledge (2012)

For several decades, Fair Trade Social Enterprises (FTSEs) have set up partnerships with producer groups in the South and distributed the latter’s products through different types of channels in the North ... [more ▼]

For several decades, Fair Trade Social Enterprises (FTSEs) have set up partnerships with producer groups in the South and distributed the latter’s products through different types of channels in the North. However, while pioneers in the early years were relatively homogeneous (nonprofit organizations relying on voluntary work and selling through “worldshops”), organizational diversity has tremendously increased in recent times, including other types of legal forms, architectures, and governance models (volunteer-based, manager-based, multi-stakeholder, etc.). As a result, different categories of FTSEs now coexist in the sector with diverse missions and strategies. Since Fair Trade (FT) is a hybrid concept, entailing economic, social and political dimensions, the diversity of organizational models might reflect or enable different ways of articulating these dimensions. In other words, different organizational models might be suited for different ways of conceiving and practicing FT. Such an articulation through specific forms has been suggested by previous concepts that can be related to FT, such as cooperatives, the social economy, the solidarity economy, and, more recently, social enterprise. The latter is particularly useful as an umbrella concept that embraces the diverse types of FTSEs and accounts for their use of market mechanisms to pursue social innovation. This research first aims to explore and to structure FTSEs’ organizational diversity. For that purpose, the managers of 57 FTSEs were interviewed in four European regions: Belgium, France (Rhône-Alpes), the United Kingdom (England) and Italy (Rome). Based on the combinations of different elements of the organizational form, five categories emerge: individual FTSEs; entrepreneurial, business-form FTSEs; volunteer-based FTSEs; multi-stakeholder cooperative FTSEs; and group structures. Although certain FTSEs share features corresponding to several models, these categories seem adequate in the sense are relatively homogeneous and distinct from each other. The second question examines the factors or forces that lead FTSEs to adopt particular and diverse organizational forms. Using sociological and economic “new institutional” approaches, this book explores the influence of a number of factors on the organizational form: age, size, region, goals, activities, resources, and leaders’ profiles. From an economic standpoint, organizational diversity may be explained by the fact that FTSEs do not all produce the same types of goods when practicing FT. Thus, FTSEs will adopt the organizational form that minimizes their transaction costs in the production of particular goods. From a sociological standpoint, the analysis suggests that weak and sometimes conflicting institutional pressures explain organizational diversity. Indeed, uniformity is limited (within certain generations of FTSEs or in particular regions), although there is a dominant trend toward a stronger business orientation in the models. The third question examines how organizational actors within FTSEs experience and foster hybridity at the field level, thereby contributing to organizational diversification. Looking at six cases of FTSEs covering the different types of models, the strategic role of FTSEs is examined, as “institutional entrepreneurs” capable of influencing the environment in a way that legitimizes their own organizational model and secures their access to crucial resources. This strategic analysis allows for a more dynamic view of organizational models as “institutional bricolage”. Finally, the book ends with a number of recommendations for FT entrepreneurs on the strengths and the weaknesses of each organizational model. [less ▲]

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See detailQuinze ans d'anti-TNF dans la maladie de Crohn: comment tirer le meilleur de cette revolution therapeutique?
Louis, Edouard ULg; REENAERS, Catherine ULg; Meuwis, Marie-Alice ULg et al

in Revue Médicale de Liège (2012), 67 Spec No

After fifteen years of use, the anti-TNF antibodies have become the corner stone of the treatment of moderate and severe Crohn's disease. The skill acquired over the years through experimental trials and ... [more ▼]

After fifteen years of use, the anti-TNF antibodies have become the corner stone of the treatment of moderate and severe Crohn's disease. The skill acquired over the years through experimental trials and clinical experience leads to increased therapeutic efficacy and minimized risks. These antibodies are introduced increasingly earlier in Crohn's disease as well as in a broader range of patients, aiming at changing the natural history of the diseases by avoiding the development of intestinal tissue damage and complications. [less ▲]

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See detailFoodborne Outbreak by a Recombinant Norovirus GIIg/1 Strain in a University Hospital in Munich
Hoffmann, Dieter; Mauroy, Axel ULg; Foley, Brian et al

Poster (2012, March)

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See detailCarte hydrogéologique de Wallonie, Louveigné-Spa; 49/3-4, 1/25.000 : [notice explicative]
Ruthy, Ingrid ULg; Dassargues, Alain ULg

Book published by Service Public de Wallonie, DGARNE - Version provisoire : mars 2012 (2012)

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