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See detailElectrochemical study of two tris-O-substituted calix[4]arenes: 25,27-dipropoxy-26-hydroxy-28-benzoyloxycalix[4]arene(partial cone) and 25,27-dibenzyl-26-hydroxy-28-benzoyloxy-calix[4]-arene (partial cone). Electro synthesis of the corresponding calix[4]arene-monoquinones
Louati, Alain; Spraula, Julien; Gabelica, Valérie ULg et al

in Electrochemistry Communications (2006), 8(5), 761-766

The anodic oxidation of 25,27-dipropoxy-26-hydroxy-28-benzoyloxycalix[4]arene 1 and 25,27-dibenzyl-26-hydroxy-28-benzoyloxycalix[4]arene 2 in dichloromethane was investigated by electrochemical and ... [more ▼]

The anodic oxidation of 25,27-dipropoxy-26-hydroxy-28-benzoyloxycalix[4]arene 1 and 25,27-dibenzyl-26-hydroxy-28-benzoyloxycalix[4]arene 2 in dichloromethane was investigated by electrochemical and spectroclectrochemical techniques. For both, the overall reaction is a two-electron oxidation of the phenolic group according to an ECE mechanism resulting in the ultimate formation of an observable phenoxylium cation. After reaction of the latter with traces of water and subsequent internal electron transfer, the corresponding calix[4]-monoquinones are formed. (c) 2006 Elsevier B.V. All rights reserved. [less ▲]

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See detailEtude du mécanisme de production de sons chez Amphiprion clarkii (Pomacentridae)
Colleye, Orphal ULg

Master of advanced studies dissertation (2006)

Les Pomacentridae constituent une des familles de l’ordre des Perciformes pour lesquels le comportement acoustique a déjà été avéré chez de nombreuses espèces. A l’heure actuelle, sept genres sont ... [more ▼]

Les Pomacentridae constituent une des familles de l’ordre des Perciformes pour lesquels le comportement acoustique a déjà été avéré chez de nombreuses espèces. A l’heure actuelle, sept genres sont référencés comme étant des producteurs de sons : Amphiprion, Dascyllus, Stegastes, Chromis, Abudefduf, Plectroglyphidodon et Hemichromis. Les émissions sonores interviennent principalement dans la reproduction et la défense de territoire ; contribuant ainsi à la survie et au succès reproducteur des individus. Les Amphiprioninae, mieux connus sous le nom de poissons-clowns, créent de véritables clans familiaux au sein d’une même actinie autour de laquelle ils déterminent leur territoire. Ainsi, la production de sons semble jouer un rôle important dans leur comportement ; la structure sociale qui règne chez ces poissons impliquant le respect de la territorialité et de la hiérarchie, les émissions sonores pourraient notamment avoir comme rôle de maintenir une bonne cohésion au sein du groupe. Malgré plusieurs études réalisées sur la production de sons chez les Amphiprion, aucune explication satisfaisante du mécanisme producteur de sons n’a été développée, seules quelques hypothèses ont été formulées. Ce travail repose sur une approche biomécanique de la production de sons basée sur la réalisation de films aux rayons X à l’aide d’une caméra à haute vitesse, combinée à une étude de morphologie fonctionnelle. Le mécanisme sonore serait autre que ceux habituellement proposés (l’action de la vessie natatoire et le grincement des dents des mâchoires pharyngiennes). Il impliquerait la mise en mouvement de nombreuses structures squelettiques, notamment la dépression du plancher pharyngien ; ce dernier engendrerait alors la tension du ligament angulo-cératohyal dont la mise en vibration pourrait être à l’origine des émissions sonores [less ▲]

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See detailCes réseaux de nature que la raison ignorait
Rémy, E.; Mougenot, Catherine ULg

in Luginbühl, Y. (Ed.) Nouvelles urbanités, nouvelles ruralités en Europe (2006)

Pour enrayer la diminution de la diversité biologique, la nature doit aujourd'hui être gérée en réseau. Le chapitre compare deux politiques européenne visant cet objectif, Natura 2000 et la Stratégie ... [more ▼]

Pour enrayer la diminution de la diversité biologique, la nature doit aujourd'hui être gérée en réseau. Le chapitre compare deux politiques européenne visant cet objectif, Natura 2000 et la Stratégie paneuropéenne pour la diversité biologique et paysagère, mises en place respectivement par l'Union européenne et le Conseil de l'Europe. [less ▲]

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See detailA Fourier-Based Solver for 3-D High-Frequency Surface Scattering Problems
Geuzaine, Christophe ULg

in Proceedings of the 12th IEEE Conference on Electromagnetic Field Computation, CEFC 2006 (2006)

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See detailA real time music synthesis environment driven with biological signals
Arslan, B.; Brouse, A.; Castet, J. et al

in Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006 (2006)

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See detail[Ecriture et travail sur soi chez Sartre : de Gide à la psychanalyse existentielle
Cormann, Grégory ULg

in Fokine, Serguei (Ed.) J.-P. Sartre au présent : L'Autobiographisme dans la littérature, la philosophie et la politique (2006)

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See detailEchevinage et droit social : le compromis entre formalisme juridique et « équité sociale » ?
Schoenaers, Frédéric ULg

in collectif (Ed.) La participation du citoyen à l'administration de la justice (2006)

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See detailChristine de Pizan, de la transsexualité au travestissement
Dor, Juliette ULg

in Leduc, Guyonne (Ed.) Travestissement féminin et libertés (2006)

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See detailEffect of the exotic invasive plant Solidago gigantea on soil phosphorus status
Chapuis-Lardy, L.; Vanderhoeven, SONIA ULg; Dassonville, N. et al

in Biology & Fertility of Soils (2006), 42(6), 481-489

Invasions by exotic plant species can modify biogeochemical cycles and soil properties. We tested whether invasion by early goldenrod (Solidago gigantea, Asteraceae) modifies soil phosphorus pools at ... [more ▼]

Invasions by exotic plant species can modify biogeochemical cycles and soil properties. We tested whether invasion by early goldenrod (Solidago gigantea, Asteraceae) modifies soil phosphorus pools at three sites in Belgium. Aboveground phytomass and soil samples (0-10 cm) were collected in early goldenrod patches and in adjacent, uninvaded, grassland vegetation. Soil P fractions varied between the three sites in line with corresponding differences in organic matter, carbonate and clay contents. In addition to site-specific impacts, plots invaded by goldenrods generally had higher concentrations of labile P [i.e. resin-extractable inorganic P (Pi) and bicarbonate-extractable Pi and organic P]. Soil CO2 release and alkaline and acid phosphomonoesterase activities were also higher in invaded plots, suggesting that the increase in labile Pi was due to enhanced mineralization. Phosphorus uptake by vegetation was 1.7-2.1 times higher in invaded plots, mostly due to the higher annual yield of S. gigantea. Altogether, the results indicate that S. gigantea enhances P turnover rates in invaded ecosystems. [less ▲]

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See detailStudy of the role of histone deacetylases in myofibroblastic differenciation
Glénisson, Wendy; Waltregny, David ULg; Castronovo, Vincenzo ULg

Scientific conference (2006)

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See detailConception et aménagement des espaces publics
Hanocq, Philippe ULg

Learning material (2006)

The course consists: • of a theoretical part : refinement of the public realm concept and description of the evolution of the uses, analysis of the contemporary practices of refurbishment under duress of ... [more ▼]

The course consists: • of a theoretical part : refinement of the public realm concept and description of the evolution of the uses, analysis of the contemporary practices of refurbishment under duress of determining factors : 1 Mobility and accessibility 2 Safety and security 3 The quality of the natural environment 4 The urban merchandising • of a practical part : from concrete study cases, conceive and size the refurbishment of various urban public places, elaborate documents in the classic frame of a public contract of services. [less ▲]

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See detailTowards a better use of the rabbit as an experimental model: review and perspectives
Dewree, R.; Drion, Pierre ULg

in Annales de Médecine Vétérinaire (2006), 150(3), 153-162

The rabbit is an essential model in scientific research, particularly in the study of cardiovascular diseases such as hypertension and atherosclerosis and for the investigation of the osteoarticular ... [more ▼]

The rabbit is an essential model in scientific research, particularly in the study of cardiovascular diseases such as hypertension and atherosclerosis and for the investigation of the osteoarticular system. Due to the fact that various factors (environmental, microbial, stress, pain.) can influence data obtained from experiments, special care must be given to housing conditions. Sensory enrichment (olfactive, auditive, visual or tactile stimuli) and physical enrichment (nutritional and social stimuli) allow rabbits to express specific behaviours and reduce stereotypies. This synthesis reminds of the importance of these factors and gives to the researcher some ways to control them. [less ▲]

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See detailA preliminary study of serum haptoglobin in bovine fetal blood.
Humblet, Marie-France ULg; Melo de Sousa, Noelita ULg; Boutet et al

in Proceedings of the 6th European Colloquium on Acute Phase Proteins (2006)

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See detailDifferential effects of hypoxia on étoposide induced apoptosis according to the cancer cell lines
Cosse, Jean-Philippe ULg; Sermeus, Audrey; Vannuvel, Kayleen et al

Poster (2006)

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See detailWhat did we recently learned on and from equine Doppler echocardiography ?
Amory, Hélène ULg; Pirard, L; Sandersen, Charlotte ULg

in Proceedings of the Resident Meeting of the European College of Equine Internal medicine (ECEIM) (2006)

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See detailCloning of the genome of Alcelaphine herpesvirus 1 as an infectious and pathogenic bacterial artificial chromosome.
Dewals, Benjamin G ULg; Boudry, Christel ULg; Gillet, Laurent ULg et al

in Journal of General Virology (The) (2006), 87(Pt 3), 509-17

Alcelaphine herpesvirus 1 (AlHV-1), carried asymptomatically by wildebeest, causes malignant catarrhal fever (MCF) following cross-species transmission to a variety of susceptible species of the order ... [more ▼]

Alcelaphine herpesvirus 1 (AlHV-1), carried asymptomatically by wildebeest, causes malignant catarrhal fever (MCF) following cross-species transmission to a variety of susceptible species of the order Artiodactyla. The study of MCF pathogenesis has been impeded by an inability to produce recombinant virus, mainly due to the fact that AlHV-1 becomes attenuated during passage in culture. In this study, these difficulties were overcome by cloning the entire AlHV-1 genome as a stable, infectious and pathogenic bacterial artificial chromosome (BAC). A modified loxP-flanked BAC cassette was inserted in one of the two large non-coding regions of the AlHV-1 genome. This insertion allowed the production of an AlHV-1 BAC clone stably maintained in bacteria and able to regenerate virions when transfected into permissive cells. The loxP-flanked BAC cassette was excised from the genome of reconstituted virions by growing them in permissive cells stably expressing Cre recombinase. Importantly, BAC-derived AlHV-1 virions replicated comparably to the virulent (low-passage) AlHV-1 parental strain and induced MCF in rabbits that was indistinguishable from that of the virulent parental strain. The availability of the AlHV-1 BAC is an important advance for the study of MCF that will allow the identification of viral genes involved in MCF pathogenesis, as well as the production of attenuated recombinant candidate vaccines. [less ▲]

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See detailExamination of non-genetics factors affecting the growth performance of Djallonke sheep at the Okpara breeding farm in Soudanian zone of Benin
Gbangboche, A. B.; Senou, N.; Farnir, Frédéric ULg et al

in Tropical Animal Health and Production (2006), 38(1), 55-64

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See detailLes méthodes diagnostiques en dentisterie restauratrice et prophylactique: Evolution des outils de détection des lésions carieuses pour un diagnostic précoce
Gueders, Audrey ULg; Geerts, Sabine ULg

in Journal du dentiste (2006), 338

La mise sur le marché de nouveaux outils de diagnostic permet la détection plus précoce du processus carieux de déminéralisation. Ce présent article fait le point sur le diagnostic de la carie et sur les ... [more ▼]

La mise sur le marché de nouveaux outils de diagnostic permet la détection plus précoce du processus carieux de déminéralisation. Ce présent article fait le point sur le diagnostic de la carie et sur les outils actuellement disponibles pour améliorer nos diagnostics et intercepter plus tôt le phénomène de déminéralisation. [less ▲]

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See detailStrategies nouvelles et recompositions sociales autour de la faune dans le Bassin du Congo.
Vermeulen, Cédric ULg; Doucet, Jean-Louis ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2006), 10(3), 251-257

The faunaʼs overexploitation in the Congo basin in general and within logging concessions in particular case still appears as a crucial problematic. Commercial poaching threats not only mammal ... [more ▼]

The faunaʼs overexploitation in the Congo basin in general and within logging concessions in particular case still appears as a crucial problematic. Commercial poaching threats not only mammal biodiversity but also long-term food safety of local populations. Strangely, this situation is generating a new and collective answer from stakeholders having opposite interests. Administrative authorities, international NGOs of conservation, logging companies have found in the context of wood certifi cation a common deal to begin an anti-poaching action on large landscapes. This study analyses interests of each stakeholder and discusses the place given to populations in this social blending around wildlife. [less ▲]

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