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See detailFirst and second generations of COX-2 selective inhibitors
De leval, X.; Julémont, F.; Benoit, V. et al

in Mini Reviews in Medicinal Chemistry (2004), 4

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See detailFirst and second order convex approximation strategies in structural optimization
Fleury, Claude ULg

in Structural and Multidisciplinary Optimization (1989), 1(1), 3-10

In this paper, various methods based on convex approximation schemes are discussed, that have demonstrated strong potential for efficient solution of structural optimization problems. First, the convex ... [more ▼]

In this paper, various methods based on convex approximation schemes are discussed, that have demonstrated strong potential for efficient solution of structural optimization problems. First, the convex linearization method (CONLIN) is briefly described, as well as one of its recent generalizations, the method of moving asymptotes (MMA). Both CONLIN and MMA can be interpreted as first order convex approximation methods, that attempt to estimate the curvature of the problem functions on the basis of semi-empirical rules. Attention is next directed toward methods that use diagonal second derivatives in order to provide a sound basis for building up high quality explicit approximations of the behaviour constraints. In particular, it is shown how second order information can be effectively used without demanding a prohibitive computational cost. Various first and second order approaches are compared by applying them to simple problems that have a closed form solution. [less ▲]

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See detailFirst approach on the skull morphology of the black rat (Rattus rattus) from Terceira and São Miguel islands (Azores archipelago)
Ramalhinho, Maria da Graça; Mathias, Maria da Luz; Santos Reis, Margarita et al

in Vie et milieu (1996), 46(3-4), 245-251

The present paper deals with an analysis of metric (cranial measurements) and non metric (epigenetic cranial characters) variation in black rat populations from S. Miguel and Terceira islands compared to ... [more ▼]

The present paper deals with an analysis of metric (cranial measurements) and non metric (epigenetic cranial characters) variation in black rat populations from S. Miguel and Terceira islands compared to a continental sample. Assuming the Azorean rats originate from the European continent, we tested the similarity between the samples, considering only adult and subadult animals. Having verified that there was no sexual dimorphism in the characters studied, we computed discriminant functions and made a PCA with the most discriminant variables. The three samples are clearly separated by these functions, the Azorean rats showing a larger general skull size and differing between the two islands. The Mean Measure of Divergence (MMD), based on non metric cranial traits frequencies, was also used to express the interpopulational differences: the rats of Terceira differ significantly either from the continental ones or from those of S. Miguel. Finally, the possible origin of these differences is disussed. [less ▲]

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See detailA first approach to “Learning Dashboards” in formal learning contexts
Verpoorten, Dominique ULg; Westera, W; Specht, M

Conference (2011, September 20)

This position paper introduces to “learning dashboards”, flagged as a new breed of eLearning interfaces. Following an observation of 3 instances of these structures for regulative support, it suggests ... [more ▼]

This position paper introduces to “learning dashboards”, flagged as a new breed of eLearning interfaces. Following an observation of 3 instances of these structures for regulative support, it suggests possible effects on attention to the learning experience, reflective learning and sense of personalisation. The paper concludes with the identification of research challenges associated with the mirroring of tracked data, inherent to these displays. [less ▲]

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See detailFirst approaches for a combined use of microsatellites and pedigree data to estimate relationships.
Bömcke, Elisabeth ULg; Gengler, Nicolas ULg

in Book of Abstract of the 58th Annual Meeeting of the European Association for Animal Production (2007, August)

The main objective of conservation is the preservation of genetiv diversity. Among several tools recommended to measure genetic variability, relationships coefficients are often used. They can be ... [more ▼]

The main objective of conservation is the preservation of genetiv diversity. Among several tools recommended to measure genetic variability, relationships coefficients are often used. They can be estimated from pedigree but also from direct knowledge of hte genotype. The Skyros pony is an example of a small breed concerned by the management of genetic variability. However,the analysis of the pedigree showed its very poor quality. A part of the population was therefore genotyped for 16 microstellites and two estimators of relationships were tested: the Lynch & Ritland (L&R) (anly based on genotypes and described as having the best performances for all population comositionsof the mammal species) and a new estimator (developed for this study and combining pedigree and microsatellite information). In order to compare the results, a Principal Component Analysis (PCA) was performed. The new estimator explained a higher percentage of information within the 3 principal factors of the PCA (41.99%) than the L&R estimator (20.61%). The graphic PCA representation showed a better separation between the reference group and the rest of the populationin the case of the new estimator. The new estimator showed interesting preliminary results and results support interest in combining information in case of incomplete pedigrees and/or use of a limited number of markers. [less ▲]

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See detailA first approximation for quantization of singular spaces
Poncin, Norbert; Radoux, Fabian ULg; Wolak, Robert

in Journal of Geometry & Physics (2009), 59(4), 503-518

Many mathematical models of physical phenomena that have been proposed in recent years require more general spaces than manifolds. When taking into account the symmetry group of the model, we get a ... [more ▼]

Many mathematical models of physical phenomena that have been proposed in recent years require more general spaces than manifolds. When taking into account the symmetry group of the model, we get a reduced model on the (singular) orbit space of the symmetry group action. We investigate quantization of singular spaces obtained as leaf closure spaces of regular Riemannian foliations on compact manifolds. These contain the orbit spaces of compact group actions and orbifolds. Our method uses foliation theory as a desingularization technique for such singular spaces. A quantization procedure on the orbit space of the symmetry group–that commutes with reduction–can be obtained from constructions which combine different geometries associated with foliations and new techniques originated in Equivariant Quantization. The present paper contains the first of two steps needed to achieve these just detailed goals. [less ▲]

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See detailFirst assessment of the biogeochemistry of the Congo River and its tributaries
Darchambeau, François ULg; Borges, Alberto ULg; Wabakanghanzi, José Nlandu et al

Scientific conference (2011, November 29)

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See detailFirst assessment of the biogeochemistry of the Congo River and tributaries
Darchambeau, François ULg; Bouillon, S.; Wabakanghanzi, J. N. et al

Poster (2011)

Detailed reference viewed: 17 (2 ULg)
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See detailFirst assessment of the biogeochemistry of the Congo River and tributaries
Darchambeau, François ULg; Bouillon, S.; Wabakanghanzi, J. N. et al

Poster (2011, April 08)

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See detailFirst assessment of the biogeochemistry of the upper Congo River
Darchambeau, François ULg; Bouillon, S.; Borges, Alberto ULg

Poster (2012, April 22)

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See detailFirst assessment of the impacts of Saharan dust events on the respiratory health in West Africa: A case study in the Northern Benin
De Longueville, Florence ULg; Henry, Sabine; Ozer, Pierre ULg

in Belviso, Claudia; Fiore, Saverio; Giannossi, Maria Luigia (Eds.) DUST2014 - International Conference on Atmospheric Dust _ Book of Abstracts (2014)

More than 50% of the global dust emitted into the atmosphere comes from the Sahara. About 60% of the Saharan dust move southwards to the Gulf of Guinea (Engelstaedter et al., 2006). Once in the air, these ... [more ▼]

More than 50% of the global dust emitted into the atmosphere comes from the Sahara. About 60% of the Saharan dust move southwards to the Gulf of Guinea (Engelstaedter et al., 2006). Once in the air, these dust contribute to increase the concentrations of particles smaller than 10 microns (PM10), which are respirable particles (Ozer et al. 2005). A number of adverse health effects have been associated with desert dust, including respiratory diseases (Goudie, 2014). [...] [less ▲]

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See detailFirst asteroseismic results from CoRoT
Michel, Eric; Baglin, A.; Weiss, W. W. et al

in Communications in Asteroseismology (2008), 156

About one year after the end of the first observational run and six months after the first CoRoT data delivery, we comment the data exploitation progress for different types of stars. We consider first ... [more ▼]

About one year after the end of the first observational run and six months after the first CoRoT data delivery, we comment the data exploitation progress for different types of stars. We consider first results to illustrate how these data of unprecedented quality shed a new light on the field of stellar seismology. [less ▲]

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See detailFirst asteroseismic results from CoRoT
Michel, Eric; Baglin, Annie; Weiss, W.W. et al

in Communication in Asteroseismology (2008), 157

About one year after the end of the first observational run and six months after the first CoRoT data delivery, we comment the data exploitation progress for different types of stars. We consider first ... [more ▼]

About one year after the end of the first observational run and six months after the first CoRoT data delivery, we comment the data exploitation progress for different types of stars. We consider first results to illustrate how these data of unprecedented quality shed a new light on the field of stellar seismology. [less ▲]

Detailed reference viewed: 4 (2 ULg)