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Peer Reviewed
See detailHow to construct fundamental risk factors?
Lambert, Marie ULg; Hübner, Georges ULg

Conference (2010, May)

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Peer Reviewed
See detailHow to construct fundamental risk factors?
Lambert, Marie ULg; Hübner, Georges ULg

Conference (2010, June)

Detailed reference viewed: 21 (5 ULg)
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See detailHow to control the recombinant prion protein adhesion for successful storage through modification of surface properties Biointerphases
Vrlinic; Debarnot, Dominique; Legeay, Gilbert et al

in Biointerphases (2012)

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See detailHow to correctly determine the kinetics of a photocatalytic degradation reaction?
Pirard, Sophie ULg; Malengreaux, Charline ULg; Toye, Dominique ULg et al

in Chemical Engineering Journal (2014), 249

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See detailHow to count elephants in West African savannahs? Synthesis and comparison of main gamecount methods
Bouché, Philippe ULg; Lejeune, Philippe ULg; Vermeulen, Cédric ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2012), 16(1), 77-91

The comparison of some elephants count methods – aerial sampling count, aerial total count and direct foot count – has been presented through surveys’ study cases implemented in Benin, Burkina Faso and ... [more ▼]

The comparison of some elephants count methods – aerial sampling count, aerial total count and direct foot count – has been presented through surveys’ study cases implemented in Benin, Burkina Faso and Niger. We compare them in terms of effort and cost to survey an area (sampling efficiency), efficiency in data collection (detection efficiency) as well as accuracy and precision. Aerial sampling count returns low sampling and detection efficiency and very low precision and accuracy figures when counting elephants populations below 0.5 elephant.km-2. Precision can partly be improved by stratification. Direct foot count returns the best sampling and detection efficiency but insufficient data number to produce reliable estimates. Therefore some authors often produced no results for elephants. Aerial total count is a costly method in absolute value. It requires important logistic and no measure of error is possible. However it provides relatively good sampling and detection efficiency as well as relatively accurate figures appreciated by wildlife managers if technical requirements are respected. Aerial total count could be recommended to survey small population of West African elephants each 3 to 5 years to minimize yearly count costs. [less ▲]

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Peer Reviewed
See detailHow to deal with radical changes in downsizing strategies of global companies? Territorial renewal and adaptative institutionalization
Naedenoen, Frédéric ULg; Pichault, François ULg; Xhauflair, Virginie ULg

Conference (2009, May)

A large part of the empirical literature devoted to the question of territorial governance and downsizing still refers to a planning view on corporate strategies (Mintzberg, 1994). A particular ... [more ▼]

A large part of the empirical literature devoted to the question of territorial governance and downsizing still refers to a planning view on corporate strategies (Mintzberg, 1994). A particular restructuring strategy, once being designed and announced, should be implemented as such, in a sequential way. Most studies do not consider the probability, quite high in a context of global uncertainty, of radical reorientations of the downsizing strategy. This is exactly what occurred in the Liege area, where a big steel group decided successively - and according to how the way the economic climate goes - (1) to stop an important part of its activity, (2) to reopen it and lastly (3) to suspend it again. In those conditions - 3 radical changes in less than 5 years - one can easily understand that a linear view on territorial reconversion must be questioned. [less ▲]

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See detailHow to deal with violence against women
Garcet, Serge ULg

Conference given outside the academic context (2005)

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Peer Reviewed
See detailHow to decrease pragmatic interferences : the impact of different techniques
Dardenne, Benoît ULg

in European Bulletin of Cognitive Psychology (1991), 11

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See detailHow to define nativeness in organisms with high dispersal capacities ? A comment on Essl et al.
Patino, J; Vanderpoorten, Alain ULg

in Journal of Biogeography (2015), 42

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See detailHow to define responders in osteoarthritis
Cooper, Cyrus; Adachi, Jonathan D; Bardin, Thomas et al

in Current Medical Research & Opinion (2013), 29(6), 719-29

Background: Osteoarthritis is a clinical syndrome of failure of the joint accompanied by varying degrees of joint pain, functional limitation, and reduced quality of life due to deterioration of articular ... [more ▼]

Background: Osteoarthritis is a clinical syndrome of failure of the joint accompanied by varying degrees of joint pain, functional limitation, and reduced quality of life due to deterioration of articular cartilage and involvement of other joint structures. Scope: Regulatory agencies require relevant clinical benefit on symptoms and structure modification for registration of a new therapy as a disease-modifying osteoarthritis drug (DMOAD). An international Working Group of the European Society on Clinical and Economic Aspects of Osteoporosis and Osteoarthritis (ESCEO) and International Osteoporosis Foundation was convened to explore the current burden of osteoarthritis, review current regulatory guidelines for the conduct of clinical trials, and examine the concept of responder analyses for improving drug evaluation in osteoarthritis. Findings: The ESCEO considers that the major challenges in DMOAD development are the absence of a precise definition of the disease, particularly in the early stages, and the lack of consensus on how to detect structural changes and link them to clinically meaningful endpoints. Responder criteria should help identify progression of disease and be clinically meaningful. The ideal criterion should be sensitive to change over time and should predict disease progression and outcomes such as joint replacement. Conclusion: The ESCEO considers that, for knee osteoarthritis, clinical trial data indicate that radiographic joint space narrowing40.5mm over 2 or 3 years might be a reliable surrogate measure for total joint replacement. On-going research using techniques such as magnetic resonance imaging and biochemical markers may allow the identification of these patients earlier in the disease process [less ▲]

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See detailHow to define responders in osteoarthritis?
Bruyère, Olivier ULg

Conference (2012, March 23)

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See detailHow to determine the place provided to physical activity in a primary school? An attempt to identify objective variables
Mouton, Alexandre ULg; Boone, Pauline; Cloes, Marc ULg

in Revista Espaňola de Educación Física y Deportes (2015, July), 410-S

In the fight against sedentariness, recent meta analyses underlined the determining role of school as a foundation for physical activity (PA) promotion in children and adolescents (Biddle et al. 2012 ... [more ▼]

In the fight against sedentariness, recent meta analyses underlined the determining role of school as a foundation for physical activity (PA) promotion in children and adolescents (Biddle et al. 2012). Consequently, active schools projects are implemented worldwide.. They combine actions on several parallel axes with the physical education (PE) teacher as a corner stone. One of the challenges of such interventions is to follow the modifications and measure their effects. Moreover, it seems that practitioners and researchers still need an instrument to ascertain the real place provided to PA in a school. The aim of this presentation consists in describing the development, validation and testing of an instrument designed to provide such feedback. This study respects a qualitative approach and, by its step by step process, could be considered as an action research approach. Its main goal is to produce an audit instrument rather than providing data. Five successive steps were designed: Analysis of the literature in order to select the main dimensions to analyze; Development of a provisional tool based on objective items; Pilot study; Validation by a group of 13 experts; Testing of the final version in a school. The analysis was focused on the school policy and involved the principal, the PE teacher and the classroom teachers. 335 items were identified and spread across six dimensions. The experts underlined the validity and completeness of the instrument. For the practitioners, participating to the data collection is a means to become aware of what the school (should) propose. This study points out the large range of variables involved in the development of a PA school project, and bring forward the limitation of an assessment using objective data. It underlines that an audit process contributes to a more relevant perception of the reality. Practitioners would also be interested by an easier-to-use tool. [less ▲]

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See detailHow to diagnose atypical myopathy
Votion, Dominique ULg

in In proceedings: 50th British Equine Veterinary Association (BEVA) Congress (2011, September 08)

Detailed reference viewed: 39 (11 ULg)
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See detailHow to Discount Deep Reinforcement Learning: Towards New Dynamic Strategies
François-Lavet, Vincent ULg; Fonteneau, Raphaël ULg; Ernst, Damien ULg

in NIPS 2015 Workshop on Deep Reinforcement Learning (2015, December)

Using deep neural nets as function approximator for reinforcement learning tasks have recently been shown to be very powerful for solving problems approaching real-world complexity. Using these results as ... [more ▼]

Using deep neural nets as function approximator for reinforcement learning tasks have recently been shown to be very powerful for solving problems approaching real-world complexity. Using these results as a benchmark, we discuss the role that the discount factor may play in the quality of the learning process of a deep Q-network (DQN). When the discount factor progressively increases up to its final value, we empirically show that it is possible to significantly reduce the number of learning steps. When used in conjunction with a varying learning rate, we empirically show that it outperforms original DQN on several experiments. We relate this phenomenon with the instabilities of neural networks when they are used in an approximate Dynamic Programming setting. We also describe the possibility to fall within a local optimum during the learning process, thus connecting our discussion with the exploration/exploitation dilemma. [less ▲]

Detailed reference viewed: 91 (14 ULg)
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See detailHow to do percutaneous ultrasound-guided liver biopsy in the adult horse
Busoni, Valeria ULg

in XIV SIVE / FEEVA Congress Proceedings (2008)

Detailed reference viewed: 40 (2 ULg)