References of "2004"
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See detailLe nimbe et le jurème
Brausch, Géraldine ULg

in Brausch, Géraldine; Delruelle, Edouard (Eds.) La droit sans la justice : Actes de la rencontre autour du 'Cap des tempêtes' de L. François (2004)

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See detailPoésie Modernité Musique au XIXe siècle
Durand, Pascal ULg; Bertrand, Jean-Pierre ULg

in Bertrand, Jean-Pierre; Delville, Michel; Pagnoulle, Christine (Eds.) Le Rossignol instrumental. Poésie, musique, modernité (2004)

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See detailCiencias y comics
Jaminon, Martine ULg

Article for general public (2004)

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See detailSimulated polymer stretch in a turbulent flow using Brownian dynamics
Terrapon, Vincent ULg; Dubief, Yves; Moin, Parviz et al

in Journal of Fluid Mechanics (2004), 504

We examine the phenomenon of polymer drag reduction in a turbulent flow through Brownian dynamics simulations. The dynamics of a large number of single polymer chains along their trajectories is ... [more ▼]

We examine the phenomenon of polymer drag reduction in a turbulent flow through Brownian dynamics simulations. The dynamics of a large number of single polymer chains along their trajectories is investigated in a Newtonian turbulent channel flow. In particular, the FENE, FENE-P and multimode FENE models with realistic parameters are used to investigate the mechanisms of polymer stretching. A topological methodology is applied to characterize the ability of the flow to stretch the polymers. It is found using conditional statistics that at moderate Weissenberg number Wi the polymers, that are stretched to a large fraction of their maximum extensibility, have experienced a strong blaxial extensional flow. When Wi is increased other flow types can stretch the polymers but the few highly extended molecules again have, on average, experienced a biaxial extensional flow. Moreover, highly extended polymers are found in the near-wall regions around the quasi-streamwise vortices, essentially in regions of strong biaxial extensional flow. [less ▲]

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See detailModelling surgical cuts, retractions, and resections via Extended Finite Element Method
Vigneron, Lara M.; Verly, Jacques ULg; Warfield, Simon K.

Conference (2004)

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See detailLa forêt privée wallonne, sa gestion et ses propriétaires (1ère partie)
Colson, Vincent ULg; Puissant, T.; Hebert, Jacques ULg et al

in Silva Belgica (2004), 111(4), 20-25

Dans le cadre d'une étude financée par le Ministère de l'Agriculture et de la Ruralité pour la Région wallonne, une enquête a été réalisée auprès de propriétaires privés de bois et forêts situés en Région ... [more ▼]

Dans le cadre d'une étude financée par le Ministère de l'Agriculture et de la Ruralité pour la Région wallonne, une enquête a été réalisée auprès de propriétaires privés de bois et forêts situés en Région wallonne. Les objectifs de cette enquête étaient de : - compléter les informations fournies par l'Inventaire Permanent des Ressources Forestières de Wallonie en récoltant des informations sur le morcellement et la composition des propriétés forestières privées wallonnes ; - tenter de caractériser les conditions actuelles de gestion des propriétés forestières privées ; - identifier les besoins d’informations et la nature des différents problèmes rencontrés par les propriétaires dans la gestion de leur patrimoine. Les résultats de cette enquête seront présentés en deux parties. Le présent article qui correspond à la première partie expose tout d’abord la méthodologie de l’enquête. Il s’intéresse ensuite à la caractérisation des propriétés forestières privées de Wallonie, notamment au travers de l’étude du morcellement mais surtout en cherchant à identifier quelles sont les fonctions que les propriétaires associent à leur forêt. Quelques brèves conclusions sont enfin présentées. Le second article traitera quant à lui des résultat relatifs à la gestion de la forêt privée et aux principales préoccupations des propriétaires. [less ▲]

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See detailA Story of Colourful Diggers and Grinders. The Sangoan and Lupemban at site 8-B-11, Sai Island, Northern Sudan
Van Peer, Philip; Rots, Veerle ULg; Vroomans, Jeanne-Marie

in Before Farming (2004), 3

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See detailThe Schwarz-Christoffel transformation as a tool in applied probability
Swan, Yvik ULg; Bruss, F. Thomas

in Mathematical Scientist (2004), 29

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See detailDIC dynamics in the Bay of Palma (NW Mediterranean)
Borges, Alberto ULg; Gazeau, F.; Gattuso, J. P. et al

Poster (2004)

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See detailCorrespondance et autres écrits du Libertador José de San Martin
Raxhon, Philippe ULg; Joset, Jacques ULg

Book published by Editions Université de Liège (2004)

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See detailPAG és progeszteron profilok alalkulás in vitro embrióbeültetést követõ vemhességnel hormanális stimuláció és petesejt kinyerés után tehenekben
Tomašković, A.; Prvanović, N.; Beckers, Jean-François ULg et al

in Proceedings: The 5th Middle-European Buiatrics Congress (2004)

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See detailESR Investigation of Chemical Exchange in Geminally Diphosphorylated Linear Nitroxide Radicals
Rockenbauer, Antal; Olive, Gilles ULg; Rozanska, Xavier et al

in Journal of Physical Chemistry A (2004), 108(25), 5484-5489

For geminally diphosphorylated linear nitroxide radicals, a marked line width alternation (LWA) can be observed. The LWA appears irrespectively whether the investigated radicals R¢¢N(O¥)C(P(O)(OEt)2)2R¢ ... [more ▼]

For geminally diphosphorylated linear nitroxide radicals, a marked line width alternation (LWA) can be observed. The LWA appears irrespectively whether the investigated radicals R¢¢N(O¥)C(P(O)(OEt)2)2R¢ contain any chiral group or not. If R¢¢ ) tert-butyl and R¢ ) H, the small â-hydrogen coupling indicates a completely blocked rotation around the N-C ó-bond and the LWA can be assigned to a chemical exchange between conformations in which the phosphoryl groups have a symmetric and a nonsymmetric geometry. The conformational change is accompanied by the deformation of the CP2 bonding angle and the rate of exchange is slowed in pentane for which the solvent molecules can be trapped by the chelating phosphoryl groups. If R¢¢ ) benzyl, both the proton hyperfine lines of the CH2 group and the phosphorus lines of the CP2 group produce a LWA; two coalescences can be observed. In the case of a chiral R¢¢ group (R¢¢ ) secondary butyl, R¢ ) methyl) a tentative four-site model can explain the highly complex LWA. [less ▲]

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See detailPurification and characterization of glutathione S-transferases from two syrphid flies (Syrphus ribesii and Myathropa florae).
Vanhaelen, Nicolas; Francis, Frédéric ULg; Haubruge, Eric ULg

in Comparative Biochemistry & Physiology Part B (2004), 137(1), 95-100

Glutathione S-transferases (GST) play an important role in the detoxification of many substances including organic pollutants and plant secondary metabolites. We compared the GST of two syrphid species ... [more ▼]

Glutathione S-transferases (GST) play an important role in the detoxification of many substances including organic pollutants and plant secondary metabolites. We compared the GST of two syrphid species, the aphidophagous Syrphus ribesii and the saprophagous Myathropa florea to assess the relation between feeding type and GST patterns. Differences between the GST of the hoverfly species were observed after purification by affinity chromatography, SDS-PAGE and kinetic studies. While the specific activities of the purified enzymes were different, the purification yields were similar. The variation in specific activities was related to the presence of different isoenzymes in both syrphid species by SDS-PAGE. While two bands of 24 and 32 kDa were observed for M. florea, one more band of 26 kDa was present in S. ribesii. When a range of substrate and glutathione concentrations was tested, differences in Km and Vmax between the glutathione S-transferases from both hoverfly species were also observed. These results are discussed in terms of adaptations to the feeding habit and the habitat of the two syrphid species. [less ▲]

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See detailHiv-1 Gp41 And Gp160 Are Hyperthermostable Proteins In A Mesophilic Environment - Characterization Of Gp41 Mutants
Krell, Tino; Greco, Frédéric; Engel, Olivier et al

in European Journal of Biochemistry (2004), 271(8), 1566-79

HIV gp41(24-157) unfolds cooperatively over the pH range of 1.0-4.0 with T(m) values of > 100 degrees C. At pH 2.8, protein unfolding was 80% reversible and the DeltaH(vH)/DeltaH(cal) ratio of 3.7 is ... [more ▼]

HIV gp41(24-157) unfolds cooperatively over the pH range of 1.0-4.0 with T(m) values of > 100 degrees C. At pH 2.8, protein unfolding was 80% reversible and the DeltaH(vH)/DeltaH(cal) ratio of 3.7 is indicative of gp41 being trimeric. No evidence for a monomer-trimer equilibrium in the concentration range of 0.3-36 micro m was obtained by DSC and tryptophan fluorescence. Glycosylation of gp41 was found to have only a marginal impact on the thermal stability. Reduction of the disulfide bond or mutation of both cysteine residues had only a marginal impact on protein stability. There was no cooperative unfolding event in the DSC thermogram of gp160 in NaCl/P(i), pH 7.4, over a temperature range of 8-129 degrees C. When the pH was lowered to 5.5-3.4, a single unfolding event at around 120 degrees C was noted, and three unfolding events at 93.3, 106.4 and 111.8 degrees C were observed at pH 2.8. Differences between gp41 and gp160, and hyperthermostable proteins from thermophile organisms are discussed. A series of gp41 mutants containing single, double, triple or quadruple point mutations were analysed by DSC and CD. The impact of mutations on the protein structure, in the context of generating a gp41 based vaccine antigen that resembles a fusion intermediate state, is discussed. A gp41 mutant, in which three hydrophobic amino acids in the gp41 loop were replaced with charged residues, showed an increased solubility at neutral pH. [less ▲]

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See detailL’architecture comme représentation de la justice pénale
Tieleman, David ULg

in GAMBARDELLA, Carmine; MARTUSCIELLO, Sabina (Eds.) Le Vie deai Mercanti : rappresentazione come governo della modificazione (2004)

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See detailLes mycoplasmes respiratoires bovins: prévalence et propriétés de cyto-adhésion
Thomas, A.; Dizier, Isabelle ULg; Sachse, K. et al

Report (2004)

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