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Peer Reviewed
See detailImplementation of the hypothesis testing identification method
Mili, Lamine; Van Cutsem, Thierry ULg

in IEEE Transactions on Power Systems (1988), 3

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See detailImplementation of the Multifractal Formalism on Snu Spaces
Kleyntssens, Thomas ULg; Nicolay, Samuel ULg

Conference (2013, September 09)

A multifractal formalism is a formula, numerically computable, which approximate the spectrum of singularities of a function. The first multifractal formalism (Frisch and Parisi, 1985) has the main ... [more ▼]

A multifractal formalism is a formula, numerically computable, which approximate the spectrum of singularities of a function. The first multifractal formalism (Frisch and Parisi, 1985) has the main default is that it always leads to a concave spectrum. In 2004, Stéphane Jaffard has introduced a new multifractal formalism, based on the Snu spaces, which can detect non concave spectra. In practice, one has to avoid the concept of limit and to deal with finite size effects. In this talk, I present the first results of an implementation of the multifractal formalism on Snu spaces on several theoretical functions. [less ▲]

Detailed reference viewed: 17 (4 ULg)
Peer Reviewed
See detailImplementation of the Nitrate Directive in Belgium : the Agricultural Surface Survey
Vandenberghe, Christophe ULg; Bontemps, Pierre-Yves; Lambert, Richard et al

in Schröder, J. J.; Neeteson (Eds.) N management in agrosystems in relation to the Water Framework Directive (2005)

Detailed reference viewed: 18 (3 ULg)
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See detailImplementing a National Routine Genetic Evaluation for Milk Fat Compositions as First Step Towards Genomic Predictions
Gengler, Nicolas ULg; Troch, Thibault ULg; Vanderick, Sylvie ULg et al

Conference (2012, May)

Currently the Walloon Region of Belgium is one of the first regions in the World where mid-infra red (MIR) spectral data is recorded in routine for nearly all cows under milk recording. Based on this data ... [more ▼]

Currently the Walloon Region of Belgium is one of the first regions in the World where mid-infra red (MIR) spectral data is recorded in routine for nearly all cows under milk recording. Based on this data, in some herds collected since 2007, saturated (SFA) and monounsaturated fatty acid (MUFA) contents in milk are predicted for each test-day. Together with correlated traits as milk, fat and protein yields, estimated breeding values (EBV) are now computed in routine for SFA and MUFA starting in June 2012. A total of 499 821, 392 255, 277 465 fatty acid records were available in first, second and third lactation for this run. A restricted selection index, called NQI (nutritional quality index) was developed that puts a negative weight on SFA, a positive weight on MUFA and restricts changes in milk and fat yields to zero. By using this index for a constant fat content, milk fat will be selected to be less saturated with a high contribution from MUFA. Based on this system a single-step genomic evaluation is under development including the introduction of MACE breeding values for correlated traits. The final step is to offer for owners of genotyped animals, a service to provide them with genomically enhanced NQI. Similar systems are under development in Wallonia for other novel traits (e.g., methane emissions) based on the ability to predict them from MIR spectral data. [less ▲]

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See detailImplementing a National Routine Genetic Evaluation for Milk Fat Compositions as First Step Towards Genomic Predictions
Gengler, Nicolas ULg; Troch, Thibault ULg; Vanderick, Sylvie ULg et al

in Interbull Bulletin (2012), 46

Currently the Walloon Region of Belgium is one of the first regions in the World where mid-infra red (MIR) spectral data is recorded in routine for nearly all cows under milk recording. Based on this data ... [more ▼]

Currently the Walloon Region of Belgium is one of the first regions in the World where mid-infra red (MIR) spectral data is recorded in routine for nearly all cows under milk recording. Based on this data, in some herds collected since 2007, saturated (SFA) and monounsaturated fatty acid (MUFA) contents in milk are predicted for each test-day. Together with correlated traits as milk, fat and protein yields, estimated breeding values (EBV) are now computed in routine for SFA and MUFA starting in June 2012. A total of 499 821, 392 255, 277 465 fatty acid records were available in first, second and third lactation for this run. A restricted selection index, called NQI (nutritional quality index) was developed that puts a negative weight on SFA, a positive weight on MUFA and restricts changes in milk and fat yields to zero. By using this index for a constant fat content, milk fat will be selected to be less saturated with a high contribution from MUFA. Based on this system a single-step genomic evaluation is under development including the introduction of MACE breeding values for correlated traits. The final step is to offer for owners of genotyped animals, a service to provide them with genomically enhanced NQI. Similar systems are under development in Wallonia for other novel traits (e.g., methane emissions) based on the ability to predict them from MIR spectral data. [less ▲]

Detailed reference viewed: 13 (9 ULg)
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See detailImplementing agricultural land-use in the CARAIB dynamic vegetation model
François, Louis ULg; Jacquemin, Ingrid ULg; Fontaine, Corentin et al

Conference (2014)

CARAIB (Dury et al., iForest - Biogeosciences and Forestry, 4:82-99, 2011) is a state-of-the-art dynamic vegetation model with various modules dealing with (i) soil hydrology, (ii) photosynthesis/stomatal ... [more ▼]

CARAIB (Dury et al., iForest - Biogeosciences and Forestry, 4:82-99, 2011) is a state-of-the-art dynamic vegetation model with various modules dealing with (i) soil hydrology, (ii) photosynthesis/stomatal regulation, (iii) carbon allocation and biomass growth, (iv) litter/soil carbon dynamics, (v) vegetation cover dynamics, (vi) seed dispersal, and (vii) vegetation fires. Climate and atmospheric CO2 are the primary inputs. The model calculates all major water and CO2/carbon fluxes and pools. It can be run with plant functional types or species (up to 100 different species) at various spatial scales, from the municipality to country or continental levels. Within the VOTES project (Fontaine et al., Journal of Land Use Science, 2013, DOI:10.1080/1747423X.2013.786150), the model has been improved to include crops and meadows, and some modules have been written to translate model outputs into quantitative indicators of ecosystem services (e.g., evaluate crop yield from net primary productivity or calculate soil erosion from runoff, slope, grown species and various soil attributes). The model was run over an area covering four municipalities in central Belgium, where land-use is dominated by crops, meadows, housing and some forests and was introduced in the model at the land parcel level. Simulations were also performed for the future. In these simulations, CARAIB was combined with the Aporia Agent-Based Model, to project land-use changes up to 2050. This approach is currently extended within the MASC project (funded by Belgian Science Policy, BELSPO) to the whole Belgian territory (at 1 km2) and to Western Europe (at 20 km x 20 km). [less ▲]

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Peer Reviewed
See detailImplementing Human Rights in Benin: The Case of Inheritance Disputes
Andreetta, Sophie ULg

in Journal of Human Rights Practice (2014)

On 14 June 2004, Benin ratified a new Code on Persons and Family, adapting its previous dual legal system to the requirements of international human rights law. For the purpose of this article, I chose to ... [more ▼]

On 14 June 2004, Benin ratified a new Code on Persons and Family, adapting its previous dual legal system to the requirements of international human rights law. For the purpose of this article, I chose to focus on inheritance conflicts as a back door to questioning the implementation of a law directly inspired by international human rights standards and principles. When it comes to inheritance disputes, are human rights respected in Benin? What are the discourses of the judges, the lawyers, and the notaries regarding this new Code? How is it implemented and what are the obstacles to it? Combining both qualitative interviews with family members and participant observation in the courtrooms, I compiled a series of case studies, supplemented by interviews with judicial officials. These sets of data allowed me to grasp how laws are enforced and interpreted, and how citizens deal with their families and with the justice system. [less ▲]

Detailed reference viewed: 16 (4 ULg)
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Peer Reviewed
See detailImplementing Network Virtualization for a Future Internet
Papadimitriou, Panagiotis; Maennel, Olaf; Greenhalgh, Adam et al

in 20th ITC Specialist Seminar on Network Virtualization Proceedings (2009, May)

The Internet has become an essential communication medium upon which billions of people rely every day. However, necessary evolution of the Internet has been severely limited by reliability constrains and ... [more ▼]

The Internet has become an essential communication medium upon which billions of people rely every day. However, necessary evolution of the Internet has been severely limited by reliability constrains and social-economic factors. Experts fear that current growth rates will threaten the future of the Internet as a whole, despite the fact that new core technologies already exist. Network virtualization presents a promising approach to overcome ossification and facilitate service deployment for a future Internet. Exploring this approach, we present a prototype implementation which realizes a subset of the 4WARD virtual network (VNet) architecture, allowing multiple VNets to coexist on top of a shared physical infrastructure. We discuss the functionality of our prototype and demonstrate experimental results to assess its performance. [less ▲]

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See detailImplementing pedagogic strategies between vets and farmers to create synergies in udder health management: Project Mammipack®
Theron, Léonard ULg; Sustronck, Bart; Bertozzi, Carlo et al

Poster (2009, December)

Udder health is usually considered as a health and economic problem for farmers. We now consider that mastitis is the result of many factors related to the environment, the pathogen and the host. What may ... [more ▼]

Udder health is usually considered as a health and economic problem for farmers. We now consider that mastitis is the result of many factors related to the environment, the pathogen and the host. What may have been forgotten in the process is the fact that nowadays, the main interface with mastitis is the farmer, and their knowledge about mastitis is very heterogeneous. This reflexion has led to the creation of a technical and pedagogical pack called “Mammipack” which contains different tools, from all actors of the dairy chain. We included small charts explaining the most important risk factors identified through epidemiology, good dairy practices and its effect on milk flow, milking machine check-up, how-to for mastitis milk sample, a how-to for performance records use for udder health management, a resume on genetic selection of sires and mastitis, charts upon nutrition factors and their main effect on udder physiology during lactation and dry-off, resume on veterinary drugs good management in the farm. Small laminated sheets upon milk sampling for bacteriology and teats evaluation were also joined in order to be use in parlors, sterile sampling tubes were also given in the pack. A mastitis record pad was designed to record the main clinical forms and the treatment chosen. Eventually, the book Udder Health® was added to have a complete modern look on that problem in dairy farms. 25 farmers were selected on a voluntary base by 12 veterinarians, and they answered to questionnaires about their main practices regarding herd structure, mastitis treatment, and southern Belgium main 19 risk factors. They had to answer basic questions concerning udder health on 15 points. They agreed to keep a record of all next mastitis cases in their farms and take milk samples for bacteriology each time at day 0 and day 21 during 3 months. The main objective is to show to a group of dairy farmers that mastitis could take several different forms from one farm to another, in term of incidence, pathogens and clinical forms. One other purpose is to show the difficulty to have bacteriological cure, even when physical cure has happened. After all, one collateral objective was to create the Mammipack®, designed for farmers and vets to increase their ability to collaborate on mastitis management through most dairy chain actors’ expertise. [less ▲]

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Peer Reviewed
See detailImplementing quantum algorithms in hyperfine levels of ultracold polar molecules
Vranckx, Stéphane; Pellegrini, Philippe; Desouter-Lecomte, Michèle ULg

in Journal of Physics: Conference Series (2012), 388(11), 112010

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See detailImplementing quantum algorithms in hyperfine levels of ultracold polar molecules by optimal control
Pellegrini, Philippe; Vranckx, Stéphane; Desouter, Michèle ULg

in Physical Chemistry Chemical Physics [=PCCP] (2011), 13

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See detailImplementing river restoration taking into account constraints of water supply protection: the case study of the Bocq River at Spontin
Peeters, Alexandre ULg; De le Court, Bernard; Verniers, Gisèle et al

Poster (2013, October)

In the Bocq basin, eastern tributary of the Meuse, restoration works consist of making 20 obstacles passable to improve the free movement of fish and sediment. This presentation focuses on a particular ... [more ▼]

In the Bocq basin, eastern tributary of the Meuse, restoration works consist of making 20 obstacles passable to improve the free movement of fish and sediment. This presentation focuses on a particular case study involving river restoration in a groundwater abstraction zone. In the sixties, a reach of more than 600 meters of the Bocq was completely channelized in order to avoid any risk of contamination of the nearby important drinking water well field area. Ecological quality was consequently impoverished due to the loss of natural habitats (streambed and banks made of concrete and masonry). In addition, the hydraulic conditions (high flow, low depth) make it totally insurmountable for fish. The restoration project started with a 3-year period of consultation with the water abstraction owner to finally reach an agreement on a restoration project taking into account the need of protection of the water abstraction. The project consisted on building rock weirs at regular interval in order to create a succession of 23 steps and pools. Furthermore, various habitats schemes were implemented such as fish shelter, rock berms for aquatic vegetation, and spawning gravel introduction. In addition a small dike and an expansion area for flooding have been completed to protect the water abstraction. This project is being monitored on the basis of geomorphological and ecological analysis. Geomorphological monitoring focuses on the bedload transport with an analysis of flood and the clogging of the gravel layer. Ecological monitoring is based on two indicators (macroinvertebrates and fishes) as well as the analysis of microhabitats. The first results show an improvement after 1 year. [less ▲]

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See detailImplementing river restoration taking into account constraints of water supply protection: the case study of the Bocq River at Spontin
Peeters, Alexandre ULg; De le Court, Bernard; Verniers, Gisèle

Poster (2013, September)

In the Bocq basin, eastern tributary of the Meuse, restoration works consist of making 20 obstacles passable to improve the free movement of fish and sediment. This presentation focuses on a particular ... [more ▼]

In the Bocq basin, eastern tributary of the Meuse, restoration works consist of making 20 obstacles passable to improve the free movement of fish and sediment. This presentation focuses on a particular case study involving river restoration in a groundwater abstraction zone. In the sixties, a reach of more than 600 meters of the Bocq was completely channelized in order to avoid any risk of contamination of the nearby important drinking water well field area. Ecological quality was consequently impoverished due to the loss of natural habitats (streambed and banks made of concrete and masonry). In addition, the hydraulic conditions (high flow, low depth) make it totally insurmountable for fish. The restoration project started with a 3-year period of consultation with the water abstraction owner to finally reach an agreement on a restoration project taking into account the need of protection of the water abstraction. The project consisted on building rock weirs at regular interval in order to create a succession of 23 steps and pools. Furthermore, various habitats schemes were implemented such as fish shelter, rock berms for aquatic vegetation, and spawning gravel introduction. In addition a small dike and an expansion area for flooding have been completed to protect the water abstraction. This project is being monitored on the basis of geomorphological and ecological analysis. Geomorphological monitoring focuses on the bedload transport with an analysis of flood and the clogging of the gravel layer. Ecological monitoring is based on two indicators (macroinvertebrates and fishes) as well as the analysis of microhabitats. The first results show an improvement after 1 year. [less ▲]

Detailed reference viewed: 7 (0 ULg)
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Peer Reviewed
See detailImplementing sustainability strategies through accounting controls: An exploration of practices in seven multinational corporations
Crutzen, Nathalie ULg; Schaltegger, Stefan

in Proceedings of the 36th Annual Congress of the European Accounting Association (EAA) (2013, May)

Detailed reference viewed: 96 (5 ULg)
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Peer Reviewed
See detailImplementing the Bianco and Yohai estimator for logistic regression
Croux, C.; Haesbroeck, Gentiane ULg

in Computational Statistics & Data Analysis (2003), 44(1-2), 273-295

A fast and stable algorithm to compute a highly robust estimator for the logistic regression model is proposed. A criterium. for the existence of this estimator at finite samples is derived and the ... [more ▼]

A fast and stable algorithm to compute a highly robust estimator for the logistic regression model is proposed. A criterium. for the existence of this estimator at finite samples is derived and the problem of the selection of an appropriate loss function is discussed. It is shown that the loss function can be chosen such that the robust estimator exists if and only if the maximum likelihood estimator exists. The advantages of using a weighted version of this estimator are also considered. Simulations and an example give further support for the good performance of the implemented estimators. (C) 2003 Elsevier B.V. All rights reserved. [less ▲]

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See detailL’implication dans la recherche clinique : un chemin vers la psychanalyse
Naziri, Despina ULg

in Revue Belge de Psychanalyse (2003), 40(printemps), 3-24

L'article débute par un bref rappel des liens entre psychologie clinique et modèle psychanalytique et de la spécificité de la recherche clinique. Puis j’illustrerai ce type de recherche à travers mon ... [more ▼]

L'article débute par un bref rappel des liens entre psychologie clinique et modèle psychanalytique et de la spécificité de la recherche clinique. Puis j’illustrerai ce type de recherche à travers mon travail sur le recours répétitif à l’avortement en explicitant mon cheminement, tant au niveau de la pensée que de l’expérience, et en reprenant quelques repères de mon itinéraire personnel. [less ▲]

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See detailL'implication dans la recherche clinique : un chemin vers la psychanalyse
Naziri, Despina ULg

in Revue Belge de Psychanalyse (2002), 40

Detailed reference viewed: 14 (0 ULg)