Publications ORBi OA
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See detailAdaptation of real-time PCR assay for specific detection of apple proliferation phytoplasma.
Aldaghi, M.; Massart, Sébastien ULg; Roussel, S. et al

in Acta Horticulturae (2008), (781), 387-393

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See detailColosses et perspective: de la prise en considération de la parallaxe dans la statuaire pharaonique de grandes dimensions au Nouvel Empire
Laboury, Dimitri ULg

in Revue d'Egyptologie (2008), 59

The deformation which affects the physiognomy of colossal sculptures of the New Kingdom suggests that Ancient Egyptian Art could have taken into account the parallax effects or distortions due to ... [more ▼]

The deformation which affects the physiognomy of colossal sculptures of the New Kingdom suggests that Ancient Egyptian Art could have taken into account the parallax effects or distortions due to perspective. This question and its methodological and theoretical implications are investigated, with a special focus on the colossi of Amenhotep IV from Karnak. [less ▲]

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See detailLa transition du Paléolithique moyen au supérieur dans la plaine septentrionale de l’Europe
Flas, Damien ULg

Book published by Société royale belge d'Anthropologie et de Préhistoire (2008)

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See detailLes standards de radiothérapie en gynécologie: cancer du sein (Gunaikeia)
Coucke, Philippe ULg

in Gunaïkeia (2008), 13(7), 211-214

Aan de hand van de literatuur willen we een overzicht geven van wat als een standaardbehandeling kan worden beschouwd bij borstkanker. We hebben het vooral over de plaats van radiotherapie bij ductaal ... [more ▼]

Aan de hand van de literatuur willen we een overzicht geven van wat als een standaardbehandeling kan worden beschouwd bij borstkanker. We hebben het vooral over de plaats van radiotherapie bij ductaal carcinoom en over de onmogelijkheid om momenteel een subgroep van patiënten te definiëren bij wie zou kunnen worden afgezien van bestraling na de heelkundige ingreep. Voor infiltrerende borstkanker die met conservatieve borstklierchirurgie wordt behandeld, nemen we de recente publicaties door over het belang van een boost op het operatieveld na bestraling van de borstklier. We bespreken ook het gunstige effect op de overleving van radiotherapie na mastectomie bij patiënten met klierinvasie, ongeacht het aantal positieve klieren. Verder behandelen we enkele nog hangende punten in verband met de praktische aspecten van radiotherapie zoals het doelvolume en de fractionering. [less ▲]

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See detailLatest developments in palynology and palaeobotany
Steemans, Philippe ULg; Gerrienne, Philippe ULg

Book published by Paléogéobio. Paléobot. Paléopalyno. (2008)

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See detailThe Role of Interpreters in Alexandria in the Light of an Oath (Qasāma) Taken in the Year 822 A.H./1419 A.D.
Bauden, Frédéric ULg

in D'hulster, Kristof; Van Steenbergen, Jo (Eds.) Continuity and Change in the Realms of Islam. Studies in Honour of Professor Urbain Vermeulen (2008)

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See detailA Perturbation Finite Element Method for Modeling Electrostatic MEMS without Remeshing
Boutaayamou, Mohamed ULg; V Sabariego, Ruth ULg; Dular, Patrick ULg

in Proceedings of the 9th International Conference on Thermal, Mechanical and Multiphysics Simulation and Experiments in Micro-Electronics and Micro-Systems (EuroSimE2008) (2008)

This paper deals with the coupled electrostatic- mechanical analysis of electrostatically actuated MEMS. An iterative perturbation procedure in conjunction with the finite element method is used to solve ... [more ▼]

This paper deals with the coupled electrostatic- mechanical analysis of electrostatically actuated MEMS. An iterative perturbation procedure in conjunction with the finite element method is used to solve the coupled problem without the need of remeshing the whole electric domain. The method offers the advantage of overcoming degenerated finite elements in the mesh of some electric regions where the deflection of the MEMS moving parts is critical. The actuation of such systems is achieved by applying either an electric voltage or a global charge. [less ▲]

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See detailLe sang de cordon ombilical
Beguin, Yves ULg

in Revue du Praticien (La) (2008), 58

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See detailConception de barrages mobiles et barrières anti-tempêtes
Rigo, Philippe ULg; INCOM WG26

Book published by AIPCN - Rapport 101-2008 (2008)

State of art dans le domaine du contôle des eaux dans les voies navigables (barrages mobiles et barrières marée tempête). Le rapport complet est disponible via http://www.pianc.org/ ou contacter Ph.rigo ... [more ▼]

State of art dans le domaine du contôle des eaux dans les voies navigables (barrages mobiles et barrières marée tempête). Le rapport complet est disponible via http://www.pianc.org/ ou contacter Ph.rigo@ulg.ac.be [less ▲]

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See detailAn experimental and numerical analysis of effects induced by moving bodies in free surface water
Kerger, François ULg; Detrembleur, Sylvain ULg; Archambeau, Pierre ULg et al

in Pagliara Stefano (Ed.) Hydraulic Structures (2008)

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See detailThe role of COX-2 in rectal cancer treated with preoperative radiotherapy
Bouzourene, H.; Pu, Yan; Sandmeier, Dominique et al

in Virchows Archiv : An International Journal of Pathology (2008), 452(5), 499-505

Radiotherapy is one of the principal modalities of rectal cancer treatment, and the ability to predict radio resistance could potentially improve survival through a targeted treatment approach ... [more ▼]

Radiotherapy is one of the principal modalities of rectal cancer treatment, and the ability to predict radio resistance could potentially improve survival through a targeted treatment approach. Cyclooxygenase-2 (COX-2) may protect against damage by irradiation that would justify the use of COX-2 inhibitors. The purpose of this study was to investigate the potential role of COX-2 in tumor response and outcome of patients with rectal cancer treated preoperatively with radiotherapy. Using immunohistochemistry, we examined COX-2 expression in 88 surgical specimens of rectal cancer treated preoperatively and in 26 pretherapeutic biopsies. We tested whether COX-2 expression was correlated with clinico-pathologic parameters and with survival and local recurrence. COX-2 was expressed in 50% of the pretherapeutic tumor biopsies and in 88.6% of post-irradiated surgical samples. COX-2 expression was correlated only with enhanced tumor inflammation (p=0.03) and with tumor volume exceeding 30 cc (p=0.05). COX-2 was not significantly correlated with patient survival, but none of the patients with COX-2 negative tumors did recur locally, whereas 80% of patients with local recurrences have COX-2 positive tumors. We conclude that COX-2 expression is overexpressed in the majority of rectal cancers treated with radiotherapy and likely plays a role in local relapse. [less ▲]

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See detailRisk adaptive treatment in Hodgkin's lympoma: reduction of radiation dose and irradiated volume
Coucke, Philippe ULg; Barthelemy, Nicole ULg; Hustinx, Roland ULg et al

in Belgian Journal of Medical Oncology [=BJMO] (2008), 2(2), 85-97

Treatment–related late complications on nontarget normal tissues and appearance of secondary malignancies are well known side-effects induced by effective treatment regimens currently used in the curative ... [more ▼]

Treatment–related late complications on nontarget normal tissues and appearance of secondary malignancies are well known side-effects induced by effective treatment regimens currently used in the curative approach of early and advanced Hodgkin’s lymphoma. Radiotherapy (RT) and chemotherapy (CT) can lead to these late complications. Efforts have been conducted to reduce the morbidity and mortality related to these treatments. In particular there has been a progressive shift from radiotherapy used as sole modality to chemotherapy as first line followed by consolidation radiotherapy. As the side-effects of radiotherapy are linked to dose, volume and interaction with chemotherapy, trials have been launched to assess the impact of modifying the characteristics of the radiation treatment. For early-stage Hodgkin’s lymphoma radiotherapy cannot be avoided but dose and volume can be reduced. In advanced Hodgkin’s lymphoma omitting radiotherapy seems reasonable only in case of complete response (CR). The clinical trials allowing such a paradigm shift are highlighted in this review. [less ▲]

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See detailIs an evidence-based approach unrealistic in NSCLC?
Coucke, Philippe ULg; Barthelemy, Nicole ULg; Bosquee, Léon ULg et al

in Belgian Journal of Medical Oncology [=BJMO] (2008), volume 2(6), 326-333

Summary Non-small cell lung cancer (NSCLC) is a heterogeneous tumour. A wide variety of treatment options is currently available. Surgery remains the mainstay of curative treatment and an operative ... [more ▼]

Summary Non-small cell lung cancer (NSCLC) is a heterogeneous tumour. A wide variety of treatment options is currently available. Surgery remains the mainstay of curative treatment and an operative approach will be selected in function of disease stage, tumour resectability and performance status of the patient. Adjuvant chemotherapy is considered standard at least for stage II and III disease. In stage III disease, resectability should be decided in function of the cytological/histological confirmation of N2 disease. If N2-disease cannot be highlighted at work-up, the patients are submitted to surgery followed by adjuvant chemotherapy. If patients are staged pN0-pN1 after surgery, ostoperative radiotherapy should not be given. However, if pN2 is discovered at surgery, there might be a place for postoperative radiotherapy but this still needs confirmation. In case of cytological/histological confirmation of pN2 disease prior to surgery, patients should not be operated but treated with a combination of oncomitant chemoradiotherapy. This treatment algorithm will be evaluated by reviewing the published evidence issued from randomized controlled trials. [less ▲]

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See detailErrors in architectural design process : towards a cognitive model.
Safin, Stéphane ULg; Leclercq, Pierre ULg; Blavier, Adelaïde ULg

in Marjanovic, Dorian; Storga, Mario; Pavkovic, Neven (Eds.) et al Proceedings of the Design 2008 : 10th International Design Conference (2008)

In architectural design process, the human error has a particular status. The later it is detected, the more expensive it is. Moreover, some errors can not be detected given the current state of the ... [more ▼]

In architectural design process, the human error has a particular status. The later it is detected, the more expensive it is. Moreover, some errors can not be detected given the current state of the design process and object definition. In this paper, we propose a model based on cognitive theories about human errors, applied to architectural preliminary design. In this model we classify the consequences of a design decision (direct, indirect, detected and undetected), we describe the steps of decision in architecture in relation to the process of errors detection and we introduce the concept of evolutive context. [less ▲]

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See detailHow much is enough?
Coucke, Philippe ULg

in Onco : Revue Multidisciplinaire d'Oncologie (2008), 2(6), 221-222

Le traitement conservateur est une constante dans l’approche oncologique. Des efforts ont été développés afin de conserver au maximum l’intégrité de la fonction et/ou de l’image corporelle. Ce souci de ... [more ▼]

Le traitement conservateur est une constante dans l’approche oncologique. Des efforts ont été développés afin de conserver au maximum l’intégrité de la fonction et/ou de l’image corporelle. Ce souci de sauvegarde se traduit par des approches thérapeutiques non mutilantes: un exemple typique est le changement de paradigme thérapeutique au moment de l’introduction de la chirurgie conservatrice de la glande mammaire en lieu et place de la mastectomie. Ce concept de chirurgie non radicale a été possible grâce à l’association avec la radiothérapie externe postopératoire. Des essais randomisés ont permis de valider le concept et de démontrer que le risque de rechute loco-régionale et ultérieurement la survie ne sont pas modifiés comparés à une approche chirurgicale potentiellement délabrante. Ces essais randomisés ne se sont fort heureusement pas limités aux aspects purement oncologiques. De façon prospective on a pu déterminer l’excellence des résultats cosmétiques à moyen et à long terme. Il est vrai que cette approche par essais randomisés était un passage indispensable et a permis de valider ce concept thérapeutique. Il aurait été pour le moins étonnant de prôner d’emblée une approche chirurgicale non mutilante mais oncologiquement complète, si à terme le résultat esthétique aurait été inférieur à celui que l’on aurait pu escompter après mastectomie radicale suivie de reconstruction. [less ▲]

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See detailProgrammes d’inventaire et de surveillance des invertébrés en Wallonie (objectifs, structure et résultats)
Dufrêne, Marc ULg; Barbier, Yvan; Fichefet, Violaine

Conference (2008)

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See detailIn-orbit vibration testing of spacecraft structures
Poncelet, Fabien ULg; Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in International Conference on Noise and Vibration Engineering, Leuven, 2008 (2008)

In-orbit modal testing can be an interesting tool for the monitoring of spacecraft structures. In these applications, it is impossible to measure or to control the excitation resulting, for instance, from ... [more ▼]

In-orbit modal testing can be an interesting tool for the monitoring of spacecraft structures. In these applications, it is impossible to measure or to control the excitation resulting, for instance, from an impact with a small asteroid or from the working engines. Consequently the only realistic methodology must be an outputonly modal analysis, also called Operational Modal Analysis (OMA). This paper proposes another way of doing OMA where the post-processing (i.e. the physical modal parameter extraction) is simplified and automated. The methodology uses the Blind Source Separation (BSS) techniques which attempt to recover the source signals only from their observed mixtures. In case of structural dynamic responses, the source signals and the mixing matrix are equivalent to the modal coordinates and the mode matrix, respectively. The paper describes the complete methodology including the post-processing, and its feasibility is demonstrated using a numerical application modeling a truss satellite with the FE method. [less ▲]

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See detailNonlinear Normal Modes, Part II: Practical Computation using Numerical Continuation Techniques
Peeters, Maxime ULg; Viguié, Régis ULg; Sérandour, Guillaume et al

in 26th International Modal Analysis Conference, Orlando, 2008 (2008)

The concept of nonlinear normal modes (NNMs) is discussed in the present paper and its companion, Part I. One reason of the still limited use of NNMs in structural dynamics is that their computation is ... [more ▼]

The concept of nonlinear normal modes (NNMs) is discussed in the present paper and its companion, Part I. One reason of the still limited use of NNMs in structural dynamics is that their computation is often regarded as impractical. However, when resorting to numerical algorithms, we show that the NNM computation is possible with limited implementation effort, which paves the way to a practical method for determining the NNMs of nonlinear mechanical systems. The proposed algorithm relies on two main techniques, namely a shooting procedure and a method for the continuation of NNM motions. The algorithm is demonstrated using two different mechanical systems, a nonlinear two-degree-of-freedom system and a nonlinear cantilever beam discretized by the finite element method. [less ▲]

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