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See detailW deposits in Western Europe : development of a geochemical approach of general applicability in mineral exploration
De Smedt, Anne; Krier-Schellen, Anne-Dominique; Sonnet, P. et al

Report (1984)

Detailed reference viewed: 11 (0 ULg)
See detailWachkoma: medizinische Grundlagen und neurowissenschaftliche Revolution
Demertzi, Athina ULg; Schabus; Weilhart, K. et al

in Jox, R.; Borasio, G. D.; Kühlmeyer, K. (Eds.) Leben im Koma Interdisziplinäre Perspektiven auf das Problem des Wachkomas (2011)

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See detailThe wage of skin ageing and how it is dealt with in Belgium.
Quatresooz, Pascale; Pierard, Gérald ULg

in Age of Skin (2008), 9

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See detailWaging the War from the Outside: The Writers of the West Indian Diaspora and their Role in the Future of the Caribbean
Ledent, Bénédicte ULg

in Gyssels, Kathleen; Ledent, Bénédicte (Eds.) The Caribbean Writer as Warrior of the Imaginary / L'écrivain caribéen, guerrier de l'imaginaire (2008)

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See detailWagner chez les Belges. Actes de la journée d’étude
Pirenne, Christophe ULg

Book published by Société liégeoise de Musicologie (2005)

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See detail"... wähle ich den Schmerz" Mit Dieter Forte "Auf der anderen Seite der Welt"
Pontzen, Alexandra ULg

in Literaturkritik.de (2005)

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See detailWaimes/Robertville: la Via Mansuerisca et la découverte d'un véhicule
Corbiau, Marie-Hélène; Hoffsummer, Patrick ULg

in Vie archéologique, chronique de l'archéologie wallonne (2006), 13

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See detailWajdi Mouawad et Olivier Py dévoilent leur génération
Delhalle, Nancy ULg

Article for general public (1999)

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See detailWake-Induced Vibration in Power Transmission Line. Parametric study
Lilien, Jean-Louis ULg; Snegovski, Dmitri

in Flow Induced Vibration - FIV 2004 (2004, July)

The paper discusses some aspects of modeling the wake-induced vibrations of the bundle conductors in transmission lines. The wake coupling between subconductors is modeled with the modified Simpson’s ... [more ▼]

The paper discusses some aspects of modeling the wake-induced vibrations of the bundle conductors in transmission lines. The wake coupling between subconductors is modeled with the modified Simpson’s approach. In order to apply this model to the analysis of power transmission line (PTL), a modal representation of a span could be used. In present paper we study how application of Dynamic Reduction (Component Mode) technique may improve such analysis under finite-element approach. The present paper, to extent of authors’ knowledge, is the first where Component Mode method application is discussed to study the subspan oscillation. Finally, bundled conductors’ susceptibility to wake-induced vibrations is illustrated on an exemplary twin-bundle, three-subspan model. Effects of bundle parameters (initial subconductor spacing, frequency ratio, subconductor mass), and the means to account them when applying the component mode method are discussed. [less ▲]

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See detailWakefulness regulation: from light to cortical excitability
Vandewalle, Gilles ULg

Conference (2014)

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See detailA walk from multifractal analysis to functional analysis with S\nu, and back
Aubry, Jean-Marie ULg; Bastin, Françoise ULg

in Barral J; Seuret S. (Ed.) Proceedings of ''Fractals and Related Fields'', Monastir, September 2007 (2010)

With the S\nu spaces introduced by Jaffard in the context of multifractal analysis to extend the Besov spaces environment, functional analysis received a gift from concrete applications. These spaces led ... [more ▼]

With the S\nu spaces introduced by Jaffard in the context of multifractal analysis to extend the Besov spaces environment, functional analysis received a gift from concrete applications. These spaces led to new results in multifractal analysis, but also brought concrete objects to study as new examples by the typical various tools and aspects of functional analysis, with hope to provide some new points of view from which to consider multifractal analysis questions. [less ▲]

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See detailA walk in the the theory of wavelets from L^2(R) to H^s(R).
Bastin, Françoise ULg; Laubin, Pascal

in Rendiconti del circolo Matematico Di Palermo (2) Suppl (1998), 52(1), 239-252

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See detailA walk into random forests: adaptation and application to Genome-Wide Association Studies
Botta, Vincent ULg

Doctoral thesis (2013)

Understanding underlying mechanisms of common diseases is one of the major goals of current research in medicine. As most of these disorders are linked to genetic factors, identification of the associated ... [more ▼]

Understanding underlying mechanisms of common diseases is one of the major goals of current research in medicine. As most of these disorders are linked to genetic factors, identification of the associated variants forms an excellent strategy towards the elucidation of molecular and cellular dysfunctions, and in fine could lead to better personalised diagnostics and treatments. Genome-Wide Association Studies (GWAS) aim to discover variants spread over the genome that could lead, in isolation or in combination, to a particular trait or an unfortunate phenotype such as a disease. The basic idea behind these studies is to statistically analyse the genetic differences between groups of healthy (controls) and diseased (cases) individuals. Advances in genetic marker technology indeed allow for dense genotyping of hundreds of thousands of Single Nucleotide Polymorphisms (SNPs) per individual. This allows to characterise representative samples composed of several hundreds to several thousands of cases and controls, each one characterised by up to a million of genetic markers sampling the genomic variations among these individuals. The standard approach to genome wide association studies is based on univariate hypothesis tests. In this approach each genetic marker is analysed in isolation from the others, in order to assess its potential association with the studied phenotype, in practice by the computation of so-called p-values based on some statistical assumptions about the data-generation mechanism. Because of the very high ratio between the large number of SNPs genotyped and the limited number of individuals, multiple-testing corrections need to be applied when carrying out these analyses, leading to reduced statistical power. While this standard approach has been at the basis of many novel loci unravelled in the last years for several complex diseases, it has several intrinsic limitations. A first limitation is that this approach does not directly account for correlations among the explanatory variables. A second intrinsic limitation of GWAS is that they can't account for genetic interactions, i.e. causal effects that are only observed when specific combinations of mutations and/or non-mutations are present at the same time. The third limitation of univariate approaches is that they do not directly allow to assess the genetic risk, since many of the identified markers (with similarly small p-values) actually account for the same underlying causal factor: exploiting their information to predict the genetic risk is hence far from straightforward. Within bioinformatics, machine learning has actually become one of the major potential sources of progress. As a matter of fact, biology has become nowadays one of the main drivers of research in machine learning, and is by itself already a very competitive research field. Among the subfields of machine learning, supervised learning and its extensions such as semi-supervised learning, stand out as the most mature and at the same time most rapidly evolving area of research. Within this context, the purpose of this thesis was to study the application of random forest types of methods to genome wide association studies, with the twofold goal of (i) inferring predictive models able to asses disease risk and (ii) to identify causal mutations explaining the phenotype. The choice of this family of methods was originally motivated by the fact that these methods are a priori well suited for that kind of analysis due to some of their interesting properties. They are indeed able to deal efficiently with very large amounts of data without relying on strong assumptions about the underlying mechanisms linking genetic and environmental factors to phenotypes, and they can also provide interpretable information, in the form of scorings and/or rankings of SNPs so as to help in the identification of causal genetic loci. In the first part of this manuscript, we analyse the state-of-the art in the application field of genome wide association studies and in supervised machine learning, and subsequently describe in details the three tree-based ensemble methods that we have implemented and applied in our research; in Part II, we report our empirical investigations, in three successive steps, namely i.) a preliminary study on simulated datasets yielding controlled conditions with known ground-truth and allowing for a first sanity check of the T-Trees methods, in ideal conditions; ii.) a detailed study on a given real-life dataset concerning Crohn's disease, where we try to understand the main features of the three different algorithms in terms of predictive accuracy and capability of identification of relevant genetic information, and their sensitivity with respect to various kinds of quality control procedures and algorithmic parameters; iii.) a systematic replication study, where we confirm, on 7 different datasets from the Wellcome Trust Case Control Consortium, the main outcomes of our study on the Crohn's disease, while using default parameter settings. 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See detailWalkabout - Paris by Clack
Havelange, Carl ULg; Strivay, Lucienne ULg

Book published by Hapax (2008)

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See detailWalking for pleasure in Belgium
Hanocq, Philippe ULg

in Busi, Roberto; Pezzagno, Michèle (Eds.) Living and walking in cities 8th International conference (2003)

Description of an original and ambitious project of the regional Walloon government (Belgium) intending for the promotion of not motorised travelling modes : the “RAVeL project”.

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See detailWalking on the Wild Side of Modernism
Delville, Michel ULg

in Den Tandt, Christophe (Ed.) Reading Without Maps (2005, October 21)

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See detailWalking on the Wild Side of Modernism
Delville, Michel ULg

in Den Tandt, Christophe (Ed.) Reading Without Maps? (2006)

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See detailWalking Waters, édition bilingue (recueil de poèmes de Michael Curtis)
Pagnoulle, Christine ULg

Book published by Les Vanneaux (2008)

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See detailWall autolysin of Lactobacillus acidophilus strain 63 AM gasser
Coyette, Jacqueline; Ghuysen, Jean-Marie ULg

in Biochemistry (1970), 9(15), 2952-2955

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See detailWall peptidoglycan in Aerococcus viridans strains 201 Evans and ATCC 11563 and in Gaffkya homari strain ATCC 10400
Nakel, Marlies; Ghuysen, Jean-Marie ULg; Kandler, Otto

in Biochemistry (1971), 10(11), 2170-2175

Detailed reference viewed: 16 (0 ULg)