Publications ORBi OA
Bookmark and Share    
Full Text
See detailLa matrice cachée de Google
Rigo, Michel ULg

Learning material (2008)

Inutile de le présenter : Google est le moteur de recherche le plus connu et le plus utilisé au monde. Mais comment les concepteurs de Google font-ils pour classer les milliers de pages se rapportant à un ... [more ▼]

Inutile de le présenter : Google est le moteur de recherche le plus connu et le plus utilisé au monde. Mais comment les concepteurs de Google font-ils pour classer les milliers de pages se rapportant à un mot-clé donné, de façon telle que les pages les plus représentatives occupent toujours les premières positions du classement ? Ce tour de force repose sur de véritables résultats mathématiques combinant théorie des graphes et algèbre linéaire. [less ▲]

Detailed reference viewed: 307 (9 ULg)
Full Text
See detailPosition du sujet et politique du corps dans Les Chants de Maldoror
Durand, Pascal ULg

in Cahiers Lautréamont (2008), LXXXV-LXXXVIII

Detailed reference viewed: 40 (9 ULg)
Full Text
Peer Reviewed
See detailValidité du sens ou idéalité des significations ? Rickert et Husserl : deux variétés de logique pure
Dewalque, Arnaud ULg

in Etudes Philosophiques (2008), (1), 97-115

In this article, I postulate that there are several varieties of logical antipsychologism, to which correspond various concepts of “pure logic”. Two conceptions are here under discussion: Husserl’s “logic ... [more ▼]

In this article, I postulate that there are several varieties of logical antipsychologism, to which correspond various concepts of “pure logic”. Two conceptions are here under discussion: Husserl’s “logic of ideality” and Rickert’s “logic of validity”. Against the equivocal use of “validity” and “ideality” by Heidegger, I first show that none of those conceptions can be exactly superimposed on the other one, because Rickert agrees with Husserl’s antipsychologism but rejects his theory of significations. It then appears that this difference – which is particularly obvious in Rickert’s unpublished review of Palágyi’s very controversial book –, reveals in fact a “weak point” in Husserl’s Logical Investigations: the confusion between logical and mathematical objects (a confusion which will be later recognized by Husserl himself). Rickert’s “axiological” alternative avoids directly this confusion by asserting the irreducibility of the propositional sense – which is grounded on pure “theoretical values” – to an ideal object. [less ▲]

Detailed reference viewed: 29 (3 ULg)
Full Text
Peer Reviewed
See detailRisque à long terme de survenue d'une fracture ostéoporotique en Belgique.
Hiligsmann, Mickaël ULg; Bruyère, Olivier ULg; Reginster, Jean-Yves ULg

in Revue Médicale de Liège (2008), 63(7-8), 480-487

This work has been realised to estimate the lifetime risk of osteoporotic fracture for Belgian men and women aged 50 and 60 years. Estimates were based on a microsimulation Markov model. They take account ... [more ▼]

This work has been realised to estimate the lifetime risk of osteoporotic fracture for Belgian men and women aged 50 and 60 years. Estimates were based on a microsimulation Markov model. They take account of the incidence of fracture as well as of life expectancy. Several approaches have been taken to model life expectancy. Our estimates also take account of future mortality reductions based on official estimates and secular trends in life expectancy. Lifetime risk of osteoporotic population (bone mineral density below -2.5 T-score) was also estimated. Lifetime risk of hip fracture and any major osteoporotic fracture (hip, clinical vertebral or wrist) were 20.5% and 39% respectively for women aged 60 years. Corresponding values for men were 7.9% and 14.8% and for osteoporotic women 32.3% and 53.4%. Our lifetime risk estimates re-emphasize that osteoporosis is a major public health problem and that its societal burden is likely to increase due to demographic changes. [less ▲]

Detailed reference viewed: 73 (18 ULg)
Full Text
Peer Reviewed
See detailImpact of the use of two different methods to appreciate the depreciation costs of machinery on total production costs and on farm income in Wallonia (Belgium)
Illo, S.; Burny, Philippe ULg

in Farm machinery and process management in sustainable agriculture : III International scientific symposium. Gembloux, 12-13 November 2008. Tome 1 (2008)

Detailed reference viewed: 6 (0 ULg)
Full Text
Peer Reviewed
See detailHandling very different time scales in numerical modelling of sediment transport and morphodynamics
Dewals, Benjamin ULg; Archambeau, Pierre ULg; Erpicum, Sébastien ULg et al

in Proceedings of the 4th International Conference on Advanced Computational Methods in Engineering (2008)

Detailed reference viewed: 23 (2 ULg)
Full Text
Peer Reviewed
See detailDetailed flood extension forecasting in the Walloon region with a 2D finite volume multiblock free surface flow solver
Erpicum, Sébastien ULg; Archambeau, Pierre ULg; Detrembleur, Sylvain ULg et al

in Proceedings of the 4th International Conference on Advanced Computational Methods in Engineering (2008)

Detailed reference viewed: 32 (8 ULg)
Full Text
Peer Reviewed
See detailAutomatic geometrical optimization by way of numerical flow models
Erpicum, Sébastien ULg; Archambeau, Pierre ULg; Dewals, Benjamin ULg et al

in Proceedings of the 3rd IAHR-International Symposium on Hydraulic Structures (2008)

The potentialities in numerical flow modeling available today allow performing more and more representative and accurate computations of an increasing part of hydraulic engineering practical problems. In ... [more ▼]

The potentialities in numerical flow modeling available today allow performing more and more representative and accurate computations of an increasing part of hydraulic engineering practical problems. In some cases, numerical simulation can be used as an alternative, or at least an efficient pre-design tool, to more classic physical modeling. In this framework, the paper presents the application of integrated numerical tools to the automatic optimization of the geometry of a guide-wall at the entrance of a channel. The simulations have been performed by using a Genetic Algorithm based optimization tool coupled to a 2D free surface flow model. This finite volume multibock flow solver, WOLF2D, solves the conservative form of the classical shallow water equations together with a depth-integrated k-ε type turbulence model. The calculations have been performed on a cluster of 12 processors to reach a satisfactory solution in less than 2.5 days (96 solutions tested). On the basis of the numerical results and of the value of the suitability indicators, the optimal solution is objectively better than the other tested geometries. This confirms the efficiency of the automatic optimization procedure. [less ▲]

Detailed reference viewed: 21 (8 ULg)
Full Text
Peer Reviewed
See detailModelling of sewer systems as a component of a global hydrological model
Khuat Duy, Bruno ULg; Archambeau, Pierre ULg; Dewals, Benjamin ULg et al

in Proceedings of the 4th International Conference on Advanced Computational Methods in Engineering (2008)

Hydrology often takes an important place in the domain of hydraulic structures management, and is a key component of many hydraulic studies. Modelling the main hydrological processes requires a particular ... [more ▼]

Hydrology often takes an important place in the domain of hydraulic structures management, and is a key component of many hydraulic studies. Modelling the main hydrological processes requires a particular attention in order to deal with problems in an optimal way. Instrumented basins studies has pointed out the considerable impact of the sewer system on the hydrological outputs dynamics on small basins, even poorly urbanized. The current models often take into account the distributed impervious areas by adapting the corresponding surfaces runoff or infiltration coefficients. This approach, which is suited to produce correct runoff volumes, is however unable to represent the real flow outputs dynamics in which important variations can occur with a hourly time step. Modelling this flow component is essential to catch the rapidly-varying flow inputs generated by the runoff on drained impervious areas. An efficient modelling method has therefore been developed to include the sewer system in a global hydrological model (WOLF), using accurate landuse data in vector format and available data on the sewage system. These developments have been successfully tested on the Berwinne basin, Belgium. [less ▲]

Detailed reference viewed: 52 (5 ULg)
Full Text
Peer Reviewed
See detailMorphological and allozyme variation in a collection of Cucumeropsis mannii Naudin (Cucurbitaceae) from Côte d'Ivoire
Koffi, Kouamé K.; Gbotto, Ahou A.; Malice, Marie ULg et al

in Biochemical Systematics & Ecology (2008), (36), 777-789

Detailed reference viewed: 49 (4 ULg)
Full Text
Peer Reviewed
See detailEl fin de una época: letrados-traductores en la primera colección de literatura traducida del siglo XX en la Argentina
Willson, Patricia ULg

in TRANS : Revista de Traductología (2008), (12), 29-42

The first great collection of books appeared in twentieth century Buenos Aires, «La Biblioteca de La Nación», was composed by 872 titles among which 761 belong to non Hispanic speaking traditions. This ... [more ▼]

The first great collection of books appeared in twentieth century Buenos Aires, «La Biblioteca de La Nación», was composed by 872 titles among which 761 belong to non Hispanic speaking traditions. This article deals with the «figures of translator» built up in the paratexts of this collection. The «learned translators», with political meddling in Argentina and other Latin American countries, especially in the nineteenth century, stand out in those paratexts. [less ▲]

Detailed reference viewed: 47 (22 ULg)
Full Text
Peer Reviewed
See detailPreliminary evaluation of antimicrobial activity of some chemicals on in vitro apple shoots infected by 'Candidatus Phytoplasma mali'.
Aldaghi, M.; Massart, Sébastien ULg; Druart, Ph et al

in Communications in Agricultural and Applied Biological Sciences (2008), 73(2),

Detailed reference viewed: 57 (10 ULg)
Full Text
See detailBiodiversité et caractéristiques physiques des cours d'eau
Philippart, Jean-Claude ULg

in Lambot, Françis; et collaborateurs (Eds.) Actes du Colloque de Namur "La gestion physique des cours d'eau: bilan d'une décennie d'ingénierie écologique" (2008)

Detailed reference viewed: 103 (5 ULg)
Full Text
Peer Reviewed
See detailRéintroduction et impacts sur leur environnement de plantes indigènes du Cerrado
Le Stradic, Soizig ULg; Buisson, Elise; Negreiros, Daniel et al

in Actualité de la recherche en écologie des communautés végétale (2008)

Detailed reference viewed: 6 (0 ULg)
Full Text
Peer Reviewed
See detailNd and Pb isotopic signatures of detrital fractions from Labrador Sea and Iceland Basin sediments: Deep oceanic circulation changes over the Holocene
Fagel, Nathalie ULg; Brasseur; Mattielli, N. et al

in Geochimica et Cosmochimica Acta (2008), 72(12), 251-251

Detailed reference viewed: 12 (0 ULg)
Full Text
Peer Reviewed
See detailHolocene records of regional dust deposition using peat bogs
Le Roux, G.; De Vleeschouwer, F.; Cheburkin, A. et al

Poster (2008)

Detailed reference viewed: 16 (1 ULg)
Full Text
Peer Reviewed
See detailMesure des flux de CO2 et bilan carboné de grandes cultures : Etat de la question et méthodologie
Moureaux, Christine ULg; Bodson, Bernard ULg; Aubinet, Marc ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2008), 12(3), 303-315

Detailed reference viewed: 188 (10 ULg)