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See detailDes socles de compétences à la mise en place d'une démarche expérimentale à l'école primaire : intervention en formation initiale des enseignants
Hindryckx, Marie-Noëlle ULg; Graftiau, Marie-Christine; Stegen, Pierre

in Actes du Troisième Congrès des chercheurs e, Education (Re)trouver le plaisir d'enseigner et d'apprendre ; construire savoirs et compétences (2004)

recherche action menée en collaboration entre deux services universitaires et la Haute Ecole Charlemagne de Liège autour de la formation initiale des enseignants du primaire en sciences. Interventions ... [more ▼]

recherche action menée en collaboration entre deux services universitaires et la Haute Ecole Charlemagne de Liège autour de la formation initiale des enseignants du primaire en sciences. Interventions dans le cadre des ateliers de formation professionnelle [less ▲]

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See detailDinámicas locales de la conservación in situ de la diversidad de tubérculos andinos en el microcentro Candelaria
Terrazas, A. F.; Baudoin, Jean-Pierre ULg; Duran, G.

Conference given outside the academic context (2004)

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See detailEcogeography, demography, diversity and conservation of Phaseolus lunatus L. in the Central Valley of Costa Rica.
Baudoin, Jean-Pierre ULg; Rocha, O.; Degreef, J. et al

Book published by International Plant Genetic Resources Institute (IPGRI) (2004)

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See detailEtude histologique du développement d'embryons issus du croisement Phaseolus vulgaris L. x P. coccineus L.
NGuema Ndoutoumou, P.; Toussaint, André ULg; Baudoin, Jean-Pierre ULg

Conference given outside the academic context (2004)

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See detailDynamiques locales de la conservation in situ à la ferme de la diversité de tubercules andins dans le micro-réservoir de Candelaria
Toussaint, André ULg; Terrazas, A.; Malice, Marie ULg et al

Conference given outside the academic context (2004)

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See detailConservation ex situ de tubérculos andinos y analisis de datos de la diversidad genética de la oca (Oxalis tuberosa Mol.)
Ugarte, M.; Baudoin, Jean-Pierre ULg

Conference given outside the academic context (2004)

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See detailEffect Of Imbalance Between Energy And Nitrogen Supplies On Microbial Protein Synthesis And Nitrogen Metabolism In Growing Double-Muscled Belgian Blue Bulls
Valkeners, Damien; Thewis, André ULg; Piron, Fabien ULg et al

in Journal of Animal Science (2004), 82(6), 1818-1825

Six double-muscled Belgian Blue bulls (initial weight: 345 ± 16 kg) with cannulas in the rumen and proximal duodenum were used in two juxtaposed 3 × 3 Latin squares to study the effect of a lack of ... [more ▼]

Six double-muscled Belgian Blue bulls (initial weight: 345 ± 16 kg) with cannulas in the rumen and proximal duodenum were used in two juxtaposed 3 × 3 Latin squares to study the effect of a lack of synchronization between energy and N in the rumen on microbial protein synthesis and N metabolism by giving the same diet according to three different feeding patterns. The feed ingredients of the diet were separated into two groups supplying the same amount of fermentable OM (FOM), but characterized by different levels of ruminally degradableN (RDN). The first group primarily provided energy for the ruminal microbes (14.6 g of RDN/kg of FOM), and the second provided N (33.3 g of RDN/kg of FOM). These two groups were fed to the bulls simultaneously or alternately with the aim of creating three different time periods of imbalance (0, 12, or 24 h) between energy and N supplies in the rumen. The introduction of imbalance affected neither microbial-N flow at the duodenum (P = 0.65) nor efficiency of growth (P = 0.69), but decreased (P = 0.016) the NDF degradation in the rumen 12.2% for a 12-h period of imbalance. N retention was not affected by imbalance (P = 0.53) and reached 57.8, 58.5, and 54.7 g/d, respectively, for 0-, 12- and 24-h imbalance. It seems that the introduction of an imbalance of 12 or 24 h between energy and N supplies for the ruminal microbes by altering the feeding pattern of the same diet does not negatively influence microbial protein synthesis or N retention by the animal. Nitrogen recycling in the rumen plays a major role in regulating the amount of ruminally availableNand allows for continuous synchronization of N- and energy-yielding substrates for the microorganisms in the rumen. Therefore, a lack of synchronization in the diet between the energy and N supplies for the ruminal microbes is not detrimental to their growth or for the animal as long as the nutrient supply is balanced on a 48-h basis. Thus, these dietary feeding patterns may be used under practical feeding conditions with minimal effect on the performance of ruminant animals. [less ▲]

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See detailEarly abortion in reciprocal crosses between phaseolus vulgaris and phaseolus polyanthus, and in vitro culture of immature embryos from these species
Toussaint, André ULg; Geerts, P.; Clement, F. et al

in Belgian Journal of Botany (2004), 137(1), 47-54

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See detailDistribución geográfica y relaciones genéticas del género Arracacia Bancroft en el Perú
Blas Sevillano, R.; Arbizu, C.; Baudoin, Jean-Pierre ULg

Conference given outside the academic context (2004)

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See detailDiversité génétique de la oca (Oxalis tuberosa Mol.) en conservation ex situ
Toussaint, André ULg; Ugarte, M. L.; Malice, Marie ULg et al

Poster (2004)

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See detailEtude de gènes impliqués dans l'embryogenèse de Phaseolus
Silué, S.; Jacquemin, J. M.; Toussaint, André ULg et al

Conference given outside the academic context (2004)

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See detailStudy of genes involved in Phaseolus embryogenesis
Silué, S.; Toussaint, André ULg; Muhovski, Y. et al

in Proceeding of the Third International Scientific Meeting Geneva (2004)

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See detailDistribution écologique et relations génétiques chez le genre Arracacia xanthorrhiza au Pérou
Blas Sevillano, R.; Toussaint, André ULg; Baudoin, Jean-Pierre ULg

Conference given outside the academic context (2004)

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See detailFlux-pinning properties of superconducting films with arrays of blind holes
Raedts, S.; Silhanek, Alejandro ULg; Van Bael, M. J. et al

in Physical Review. B : Condensed Matter (2004), 70(2),

We performed ac susceptibility measurements to explore the vortex dynamics and the flux-pinning properties of superconducting Pb films with an array of microholes (antidots) and not fully perforated holes ... [more ▼]

We performed ac susceptibility measurements to explore the vortex dynamics and the flux-pinning properties of superconducting Pb films with an array of microholes (antidots) and not fully perforated holes (blind holes). A lower ac shielding together with a smaller extension of the linear regime for the lattice of blind holes indicates that these centers provide a weaker pinning potential than antidots. Moreover, we found that the maximum number of flux quanta trapped by a pinning site, i.e., the saturation number n(s), is lower for the blind hole array. [less ▲]

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See detailRégulation et concurrence dans le transport collectif urbain
Coppe, Aurélie; Gautier, Axel ULg

in Reflets et Perspectives de la Vie Economique (2004), 43(4), 65-76

In Europe, most of the urban public transport services are not operated on a commercial basis. The implication of local public authorities in the sector is important: they organize their local market ... [more ▼]

In Europe, most of the urban public transport services are not operated on a commercial basis. The implication of local public authorities in the sector is important: they organize their local market, they finance services and, sometimes, they also act as producers. This paper analyzes the public transport system in four European cities: Lyon, Stockholm, Helsinki and Brussels and concentrates, in particular, on the introduction of regulated competition. Four different market mechanisms can be used in the public transport sector: (1) competitive tendering, (2) open access with on-track competition, (3) yardstick competition where the operator’s reward is based on a comparative evaluation of its performance and (4) the possibility of challenging the incumbent public operator. The pros and cons of different competitive mechanisms are presented and the article discusses the conditions under which a truly competitive market could be settled [less ▲]

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See detailImpact of hydroelectric power releases on the morphology and the sedimentology of the bed of the Warche River (Belgium).
Assani, A. A.; Petit, François ULg

in Earth Surface Processes & Landforms (2004)

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See detailCaspase-8-dependent HER-2 cleavage in response to tumor necrosis factor alpha stimulation is counteracted by nuclear factor kappa B through c-FLIP-L expression
Benoit, Valérie; Chariot, Alain ULg; Delacroix, Laurence ULg et al

in Cancer Research (2004), 64(8), 2684-2691

The oncoprotein HER-2/neu is a prosurvival factor, and its overexpression has been correlated with poor prognosis in patients with breast cancer. We report that HER-2 is a new substrate for caspase-8 and ... [more ▼]

The oncoprotein HER-2/neu is a prosurvival factor, and its overexpression has been correlated with poor prognosis in patients with breast cancer. We report that HER-2 is a new substrate for caspase-8 and that tumor necrosis factor alpha (TNF-alpha) stimulation leads to an early caspase-8-dependent HER-2 cleavage in MCF7 A/Z breast adenocarcinoma cells defective for nuclear factor kappaB (NFkappaB) activation. We show that the antiapoptotic transcription factor NFkappaB counteracts this cleavage through induction of the caspase-8 inhibitor c-FLIP. Our results also demonstrate that this HER-2 cleavage contributes to the TNF-alpha-induced apoptosis pathway because ectopic expression of an uncleavable HER-2 protects NFkappaB-defective cells against TNF-alpha-mediated cell death. Therefore, we propose an original model in which NFkappaB exerts a new antiapoptotic function by counteracting TNF-alpha-triggered cleavage of the HER-2 survival factor. [less ▲]

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