Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Peer Reviewed
See detailHow to decrease pragmatic interferences : the impact of different techniques
Dardenne, Benoît ULg

in European Bulletin of Cognitive Psychology (1991), 11

Detailed reference viewed: 19 (1 ULg)
Full Text
Peer Reviewed
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

Detailed reference viewed: 20 (0 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 38 (5 ULg)
See detailHow to define responders in osteoarthritis?
Bruyère, Olivier ULg

Conference (2012, March 23)

Detailed reference viewed: 16 (0 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 38 (4 ULg)
Full Text
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)
Full Text
Peer Reviewed
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)
Full Text
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)
See detailHow to enhance the performance of OSH services ?
Mairiaux, Philippe ULg

Conference (2010, November 23)

Detailed reference viewed: 10 (1 ULg)
Full Text
See detailHow to face failure to growth in dogs and cats?
Peeters, Dominique ULg

in Proceedings of the first Belgium International Congress for Small Animal Veterinarians (Canifelis 2007) (2007, January)

Detailed reference viewed: 16 (0 ULg)
Full Text
Peer Reviewed
See detailHow to generate regularly behaved production data? A Monte Carlo experimentation on DEA scale efficiency measurement
Santin, Daniel; Perelman, Sergio ULg

in European Journal of Operational Research (2009), (199), 303-310

Monte Carlo experimentation is a well-known approach used to test the performance of alternative methodologies under different hypotheses. In the frontier analysis framework, whatever the parametric or ... [more ▼]

Monte Carlo experimentation is a well-known approach used to test the performance of alternative methodologies under different hypotheses. In the frontier analysis framework, whatever the parametric or non-parametric methods tested, experiments to date have been developed assuming single output multi-input production functions. The data generated have mostly assumed a Cobb–Douglas technology. Among other drawbacks, this simple framework does not allow the evaluation of DEA performance on scale efficiency measurement. The aim of this paper is twofold. On the one hand, we show how reliable two-output two-input production data can be generated using a parametric output distance function approach. A variable returns to scale translog technology satisfying regularity conditions is used for this purpose. On the other hand, we evaluate the accuracy of DEA technical and scale efficiency measurement when sample size and output ratios vary. Our Monte Carlo experiment shows that the correlation between true and estimated scale efficiency is dramatically low when DEA analysis is performed with small samples and wide output ratio variations. [less ▲]

Detailed reference viewed: 26 (6 ULg)
Full Text
Peer Reviewed
See detailHow to get rid of the two spotted spider mites?
Attia, Sabrine; Grissa, Kaouthar Lebdi; Heuskin, Stéphanie ULg et al

in Revue des Régions Arides (2014), 35(3), 1739-1748

Two essential oils were tested for their toxicity against eggs and adults of Tetranychus urticae Koch as well as adults of Phytoseiulus persimilis Athias-Henriot, by using a filter paper diffusion ... [more ▼]

Two essential oils were tested for their toxicity against eggs and adults of Tetranychus urticae Koch as well as adults of Phytoseiulus persimilis Athias-Henriot, by using a filter paper diffusion bioassay without allowing direct contact. Responses varied according to oil type and dose, and mite species. The chemical analyses with GC-MS and GC-FID revealed that the two oils differed in their most abundant components. The most abundant components in the Citrus oil were linalyl acetate (41.95%), sabinene (18.60%) and linalool (18.14%) whereas pulegone (41.86%) and menthone (28.33%) were most prevalent in the Mentha oil. Mortality and fecundity were measured with 15 oils concentrations ranged from 0.01 to 8μl/l of air. Tetranychid mortality increased with increasing concentrations with LC50 value of 5.39 and 4.09 μl/l for C. aurantium and M. pulegium, respectively. However few mortality was observed in the case of P. persimilis with LC50 value of 0.46 and 0.26 μl/l for C. aurantium and M. pulegium respectively. For both oils a reduction of fecundity was observed at 0.01 μ/l in the case of T. urticae. The essential oils described herein have potential interest as fumigants for the bio-control of T. urticae. [less ▲]

Detailed reference viewed: 19 (2 ULg)
See detailHow to get the most information out of your necropsy
Jauniaux, Thierry ULg; Coignoul, Freddy ULg

in COST Meeting proceedings (2002)

Detailed reference viewed: 14 (0 ULg)
Full Text
Peer Reviewed
See detailHow to improve assessment of tetanus immunity in the Emergency Room: a prospective cost-effectiveness double blind study.
STUBBE, Muriel; SWINNEN, Ronny; DESRUELLES, Didier et al

Poster (2007, May 13)

Detailed reference viewed: 23 (10 ULg)
Full Text
Peer Reviewed
See detailHow to Improve Assessment of Tetanus Immunity in the Emergency Room: A Prospective Cost-Effectiveness, Double Blind Study
STUBBE, Muriel; SWINNEN, Ronny; DESRUELLES, Didier et al

in Prehospital & Disaster Medicine (2007), 22(Suppl 1), 86

Detailed reference viewed: 15 (6 ULg)
Full Text
See detailHow to improve the ship efficiency
Caprace, Jean-David ULg

Conference (2011, August)

Detailed reference viewed: 23 (2 ULg)