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See detailProposition d’une méthode de typologie hydro-géomorphologique des cours d’eau et tes sur un sous-bassin du Rhône (Bassin de l’Yzeron).
Schmitt, Laurent; Valette, L.; Valin, K. et al

in MOSELLA, XXIX (3-4) (2004)

Proposal of a method of hydro-geomorphological typology of rivers and test of a sub-basin of the Rhône River (Yzeron basin). The paper proposes a hydro-geomorphological typology method of watercourses ... [more ▼]

Proposal of a method of hydro-geomorphological typology of rivers and test of a sub-basin of the Rhône River (Yzeron basin). The paper proposes a hydro-geomorphological typology method of watercourses that might potentially be used in western Europe. The method was tested in the Yzeron basin (France). Field data were collected and analysed by multivariate statistics. Statistical results were consistent with the results of the typology model. Some recommendations are also made for the future development of automatic methods of characterization-sectorization of rivers. [less ▲]

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See detailTesting the value of six taxonomic groups as biodiversity indicators at a local scale
Kati, V.; Devillers, P.; Dufrêne, Marc ULg et al

in Conservation Biology (2004), 18(3), 667-675

We examined six groups of taxa - woody plants, aquatic and terrestrial herpetofauna, small terrestrial birds, orchids, and Orthoptera - to determine their efficiency as biodiversity indicators in the ... [more ▼]

We examined six groups of taxa - woody plants, aquatic and terrestrial herpetofauna, small terrestrial birds, orchids, and Orthoptera - to determine their efficiency as biodiversity indicators in the Dadia Reserve in northern Greece. We investigated the indicator value of each group by examining the degree of congruence of its species-richness pattern with that of the other groups and the efficiency of its complementary network in conserving the other groups and biodiversity. The two techniques differed in many respects in their outputs, but they both showed woody plants as the best biodiversity indicator. There was in general low congruence in the species richness patterns across the different groups. Significant relationships were found between woody plants and birds, Orthoptera and terrestrial herpetofauna, and birds and aquatic herpetofauna. None of the optimal complementary networks of the groups we examined protected all species of the other groups. Nevertheless, the complementary network of woody plants adequately conserved all groups except orchids. We conclude that the principle of complementarity must be integrated into the methodology of evaluating an indicator. In an applied context, our results provide a scientific background on which to base a biomonitoring program for the Dadia Reserve. In a wider scope, if the group of woody plants prove an adequate biodiversity indicator for other Mediterranean areas as well, this will be important because it will facilitate conservation-related decisions for the entire Mediterranean region. [less ▲]

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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 detailLipids metabolism and hyperlipidaemia in the dog
Jeusette, Isabelle; Istasse, Louis ULg; Diez, Marianne ULg

in Annales de Médecine Vétérinaire (2004), 148(2), 79-89

This synthesis aims to summarize lipids metabolism in the dog. The different aetiology and diagnostic of primary or secondary hyperlipidaemia in dog are reviewed. The nutritional treatment and more ... [more ▼]

This synthesis aims to summarize lipids metabolism in the dog. The different aetiology and diagnostic of primary or secondary hyperlipidaemia in dog are reviewed. The nutritional treatment and more particularly the use of dietary fibres are discussed. [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 detailStructural basis of protein phosphatase 1 regulation
Terrak, Mohammed ULg; Kerff, Frédéric ULg; Langsetmo, K. et al

in Nature (2004), 429(6993), 780-4

The coordinated and reciprocal action of serine/threonine (Ser/Thr) protein kinases and phosphatases produces transient phosphorylation, a fundamental regulatory mechanism for many biological processes ... [more ▼]

The coordinated and reciprocal action of serine/threonine (Ser/Thr) protein kinases and phosphatases produces transient phosphorylation, a fundamental regulatory mechanism for many biological processes. The human genome encodes a far greater number of Ser/Thr protein kinases than of phosphatases. Protein phosphatase 1 (PP1), in particular, is ubiquitously distributed and regulates a broad range of cellular functions, including glycogen metabolism, cell-cycle progression and muscle relaxation. PP1 has evolved effective catalytic machinery but lacks substrate specificity. Substrate specificity is conferred upon PP1 through interactions with a large number of regulatory subunits. The regulatory subunits are generally unrelated, but most possess the RVxF motif, a canonical PP1-binding sequence. Here we reveal the crystal structure at 2.7 A resolution of the complex between PP1 and a 34-kDa N-terminal domain of the myosin phosphatase targeting subunit MYPT1. MYPT1 is the protein that regulates PP1 function in smooth muscle relaxation. Structural elements amino- and carboxy-terminal to the RVxF motif of MYPT1 are positioned in a way that leads to a pronounced reshaping of the catalytic cleft of PP1, contributing to the increased myosin specificity of this complex. The structure has general implications for the control of PP1 activity by other regulatory subunits. [less ▲]

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See detailMotivation in the Gym: A Qualitative Approach
Cloes, Marc ULg

in Chin, M. K.; Hensley, L. D.; Cote, P. (Eds.) et al Global Perspectives in the Integration of Physical Activity, Sports, Dance, and Exercise Science in Physical Education: From Theory to Practice (2004)

Students’ motivation is a major concern of physical education teachers as well as it interest the others educators. Understanding of that complex variable increased during the last two decades. In the ... [more ▼]

Students’ motivation is a major concern of physical education teachers as well as it interest the others educators. Understanding of that complex variable increased during the last two decades. In the physical education domain, many studies were focused on isolated variables related to motivation and on their relationship with pupils’ behaviours. More recently, qualitative researches were conducted to enter in the class specificity and to integrate the complexity and diversity of the variables that influence students’ motivations. Combining questionnaires interviews and observation, some researchers have confirmed that student’s motivation depends on a package of dispositional as well as individual and collective situational factors. They pointed out also the determining role of the teacher in the development of a motivated class climate. This paper will describe a couple of qualitative studies designed to analyse students’ motivation and will underline their contribution in the understanding of the phenomena related to the development of motivation by students. Moreover, as teachers need research directly focused to their concerns, we must now provide them more support helping them to apply research data. The action research design is proposed as an appropriate approach in that way. The description of a pilot action research focused on the improvement of the students’ motivation in a secondary school level girls class will also proposed. The main results should provide the starting point of a reflective process about the strategies that teachers could plan on the gym. As it has been underlined above, the goal of the paper was to share useful information with practitioners and researchers and to encourage them to involve themselves in personal research on students’ motivation. [less ▲]

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See detailGlobalisation, gouvernance et logiques régionales dans les Amériques
Santander, Sébastian ULg

Book published by L'Harmattan (2004)

L'ouvrage se penche sur les intégrations régionales dans les Amériques. Il épingle aussi bien les groupements régionaux issus d'une initiative latino-américaine que ceux issus de Washington.

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See detailL'électroneuromyographie en 2004 : Mises au point
WANG, François-Charles ULg; MAERTENS DE NOORDHOUT, Alain ULg

Book published by Faculté de Médecine de Liège (H. Kulbertus) (2004)

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See detailL'horloge chronobiologique de la peau.
Flagothier, Caroline ULg; Henry, Frédérique ULg; Franchimont, Claudine ULg et al

in Dermatologie Actualité (2004), 80

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See detailAtypical Myopathy (Atypical Myoglobinuria)
Votion, Dominique ULg; Amory, Hélène ULg; Demoulin, Vincent ULg et al

in IVIS Reviews in Veterinary Medicine (2004)

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See detailOn the O(1) Solution of Multiple-Scattering Problems
Geuzaine, Christophe ULg; Bruno, O.; Reitich, F.

in Proceedings of the 11th IEEE Conference on Electromagnetic Field Computation (CEFC'2004) (2004)

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See detailTransferrin-Binding Protein B Of Neisseria Meningitidis: Sequence-Based Identification Of The Transferrin-Binding Site Confirmed By Site-Directed Mutagenesis
Renauld-Mongenie, G.; Lins, Laurence ULg; Krell, T. et al

in Journal of Bacteriology (2004), 186(3), 850-7

A sequence-based prediction method was employed to identify three ligand-binding domains in transferrin-binding protein B (TbpB) of Neisseria meningitidis strain B16B6. Site-directed mutagenesis of ... [more ▼]

A sequence-based prediction method was employed to identify three ligand-binding domains in transferrin-binding protein B (TbpB) of Neisseria meningitidis strain B16B6. Site-directed mutagenesis of residues located in these domains has led to the identification of two domains, amino acids 53 to 57 and 240 to 245, which are involved in binding to human transferrin (htf). These two domains are conserved in an alignment of different TbpB sequences from N. meningitidis and Neisseria gonorrhoeae, indicating a general functional role of the domains. Western blot analysis and BIAcore and isothermal titration calorimetry experiments demonstrated that site-directed mutations in both binding domains led to a decrease or abolition of htf binding. Analysis of mutated proteins by circular dichroism did not provide any evidence for structural alterations due to the amino acid replacements. The TbpB mutant R243N was devoid of any htf-binding activity, and antibodies elicited by the mutant showed strong bactericidal activity against the homologous strain, as well as against several heterologous tbpB isotype I strains. [less ▲]

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