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See detailCumulate origin and polybaric crystallization of Fe-Ti oxide ores in the Suwalki anorthosite, northeastern Poland
Charlier, Bernard ULg; Namur, Olivier ULg; Duchesne, Jean Clair et al

in Economic Geology (2009), 104

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See detailPROPOS DISPARATES AUTOUR DE LA GÉOGRAPHIE PHYSIQUE
Ek, Camille ULg

in Bulletin de la Société géographique de Liège (2009), 52

Rambling thoughts about physical geography Theories and paradigms succeed each other as time passes by. Some of the paradigms display a strong tendency to degenerate into laws and rules. Applied research ... [more ▼]

Rambling thoughts about physical geography Theories and paradigms succeed each other as time passes by. Some of the paradigms display a strong tendency to degenerate into laws and rules. Applied research requires team work and hierarchy. It should not be the only kind of research. Financial support is essential to support fundamental research, some of which must remain independent. Systemic approach to research, even in physical geography, thrusts the Human to the forefront. Man becomes an agent, as well as a subject to the process. Research should be structured and open to provide us with the most essential elements necessary, to correctly validate the theories and to be useful to mankind. [less ▲]

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See detailBacillus lipopeptides as MAMPs for non-pathogenic bacteria perception and defense responses elicitation in plant cells.
Henry, Guillaume; Ongena, MARC ULg; Jourdan, Emmanuel ULg et al

in Bulletin OILB/SROP = IOBC/WPRS Bulletin (2009), 43

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See detailWater desorption from resorcinol-formaldehyde hydrogels and adsorption in the resulting xerogels
Escalona, Ivonne; Gommes, Cédric ULg; Job, Nathalie ULg et al

in Microporous & Mesoporous Materials (2009), 117

Water desorption isotherms of resorcinol-formaldehyde (RF) hydrogels and subsequent water adsorption isotherms of the resulting xerogels are determined using the static gravimetric method, at various ... [more ▼]

Water desorption isotherms of resorcinol-formaldehyde (RF) hydrogels and subsequent water adsorption isotherms of the resulting xerogels are determined using the static gravimetric method, at various temperatures. Isotherms obtained from samples synthesized at various pH are compared. Two different mechanisms are involved in RF hydrogels water desorption. At large relative humidity the capillary tension resulting from water removal induces a macroscopic shrinkage of the gel, whereas at low humidity water is evaporated with no network deformation. These two mechanisms are analyzed using a plastic deformation model and the Guggenheim-Anderson-de Boer (GAB) model, respectively. Adsorption isotherms of RF xerogels are analyzed using the GAB model. [less ▲]

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See detailInfluence of the chemical composition on the thixoformability of steels
Pierret, Jean-Christophe ULg; Rassili, Ahmed ULg; Vaneetveld, Grégory ULg et al

in International Journal of Material Forming (2009)

This work deals with the qualification of a variety of steels for their shaping by the thixoforging process. This technology requires setting up a globular microstructure inside the material during ... [more ▼]

This work deals with the qualification of a variety of steels for their shaping by the thixoforging process. This technology requires setting up a globular microstructure inside the material during reheating to a temperature between the solidus and liquidus. As the evolution of the liquid fraction is strongly connected to the steel composition, it is useful to understand how low carbon steel could be alloyed and still thixoformable. The most critical parameter for this is the carbon content. In this study, a theoretical analysis of the phase evolution during the reheating has been performed on the MT Data software to investigate the influence of alloying elements. These first results have been confirmed by Differential Thermal Analysis and by inductive heating experiments on steel slugs. Finally, some parts have been shaped using a thixoforming tool mounted on a hydraulic press. Micrographs of reheated slugs as well as of actual parts are also presented in this paper. [less ▲]

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See detailPolitiques de la souffrance, politiques du vivant : quand les corps « parlent » de la souffrance
Vrancken, Didier ULg

in Perilleux, Thomas; Cultiaux, John (Eds.) Destins politiques de la souffrance. Intervention sociale, justice, travail (2009)

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See detailLa mesure de la charge de travail des magistrats : analyse d’un dispositif de modernisation de la Justice.
Delvaux, David ULg; Schoenaers, Frédéric ULg

in Bernard, Benoit (Ed.) Le management des organisations judiciaires (2009)

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See detailLa guerra dei Sei Giorni: lunedì, il giorno dell’attacco
Cuau, Ives; Ricciardi, Stefania ULg

in Barillari, Simone (Ed.) La guerra a un passo (2009)

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See detailMécanismes de l'anesthésie générale: apport de l'imagerie fonctionnelle
Boveroux, Pierre ULg; Bonhomme, Vincent ULg; Kirsch, Murielle ULg et al

in Revue Médicale de Liège (2009), 64(Synthèse 2009), 36-41

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See detailGamma interferon production correlates negatively with plasma levels of pregnancy-associated glycoprotein-1 (PAG-1) during gestation in dairy cows naturally infected with Neospora caninum
Lopez-Gatius, F.; Almeria, S.; Yániz, J. L. et al

in O’Leary, M.; Arnett, J. (Eds.) Pregnancy Protein Research (2009)

Gamma interferon (IFN-γ) production has been ascribed a role in protecting cows infected with Neospora caninum against abortion. The present study analyzes the interaction between IFN-γ production and ... [more ▼]

Gamma interferon (IFN-γ) production has been ascribed a role in protecting cows infected with Neospora caninum against abortion. The present study analyzes the interaction between IFN-γ production and levels of plasma pregnancy-associated glycoprotein-1 (PAG-1), as a marker of placental/fetal well-being, throughout gestation in naturally Neospora-infected dairy cows. Data were obtained from 88 pregnant cows from two herds: 62 seropositive and 26 seronegative for the parasite. Blood sample collection was performed on days 40, 90, 120, 150, 180 and 210 of gestation. Plasma was tested for antibodies against N. caninum, PAG-1 and IFN-γ. Twenty five (28.4%) pregnancies were recorded after AI using Holstein-Friesian semen (19 in seronegative and 6 in seropositive animals), and 63 (71.6%) after AI using Limousin semen (7 in seronegative and 56 in seropositive animals). Gamma interferon was detected in the plasma of 14 (22.6%) of the 62 Neospora-seropositive cows and could not be detected in any of the 26 seronegative animals. All 14 cows producing IFN-γ became pregnant by using Limousin semen. Our GLM repeated measures showed no effect of herd, lactation number, milk production at the time of pregnancy diagnosis and Neospora-seropositivity on plasma PAG-1 concentrations. Significant positive effects of both the day of gestation (P<0.0001) and interaction between day of gestation and breed of sire (P = 0.001) on PAG-1 values were registered. Cows carrying twins had higher (P = 0.002) PAG-1 concentrations throughout gestation than cows carrying singletons. Interactions between breed of sire and Neospora-seropositivity (P<0.0001), and between IFN-γ production and Neospora-seropositivity (P = 0.04) were also detected. Thus, Neospora-seronegative cows inseminated with Limousin and Neospora-seropositive cows with no IFN-γ production, exhibited higher PAG-1 concentrations throughout gestation than seropositive cows inseminated with Limousin semen and producing IFN-γ, respectively. Our data indicate that production of IFN-γ correlates negatively and, the production of antibodies against N. caninum is uncorrelated with plasma PAG-1 concentrations during gestation in Neospora-infected dairy cows. Our results also suggest that augmented Th1 cell-mediated immunity is related to a lower risk of abortion and therefore higher resistance to the parasite in cows inseminated with Limousin versus Holstein-Friesian semen. [less ▲]

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See detailDe rol van de magistratuur in herstelgerichte praktijken
Aertsen, Ivo; Lauwaert, Katrien ULg

in Tijdschrift voor Herstelrecht (2009), 9(2), 38-51

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See detailAn Explicit Formula for the Natural and Conformally Invariant Quantization
Radoux, Fabian ULg

in Letters in Mathematical Physics (2009), 89

Lecomte (Prog Theor Phys Suppl 144:125–132, 2001) conjectured the existence of a natural and conformally invariant quantization. In Mathonet and Radoux (Existence of natural and conformally invariant ... [more ▼]

Lecomte (Prog Theor Phys Suppl 144:125–132, 2001) conjectured the existence of a natural and conformally invariant quantization. In Mathonet and Radoux (Existence of natural and conformally invariant quantizations of arbitrary symbols, math.DG 0811.3710), we gave a proof of this theorem thanks to the theory of Cartan connections. In this paper, we give an explicit formula for the natural and conformally invariant quantization of trace-free symbols thanks to the method used in Mathonet and Radoux and to tools already used in Radoux [Lett Math Phys 78(2):173–188, 2006] in the projective setting. This formula is extremely similar to the one giving the natural and projectively invariant quantization in Radoux. [less ▲]

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See detailConcurrence difficile
Petit, Nicolas ULg

Article for general public (2009)

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See detailUniformisation des critères de publication et émergence de "nouveaux" discours dans le domaine des sciences de la gestion
Robert, Jocelyne ULg

in Defays, Jean-Marc; Englebert, Annick; al. (Eds.) "Principes et typologie des discours universitaires" Tome 1 (2009)

À partir des changements que connaît le monde des sciences de la gestion, nous avons analysé l’uniformisation des critères de publication d’une part, le développement de « nouveaux » discours d’autre part ... [more ▼]

À partir des changements que connaît le monde des sciences de la gestion, nous avons analysé l’uniformisation des critères de publication d’une part, le développement de « nouveaux » discours d’autre part. Ces éléments ne sont pas indépendants d’une situation globale de concurrence, de recherche d’excellence et de rentabilité. Ils contribuent à redéfinir les valeurs, les règles et les normes de fonctionnement du champ scientifique, les signes de reconnaissance, les positions des acteurs et leur mode de relations. Nous avons souhaité montrer les influences extérieures et les forces internes qui contribuent à expliquer cette situation. [less ▲]

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See detailÀ perte de vue: les archives cinématographiques à l’épreuve de la disparition
Thonon, Jonathan ULg

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (2009), 1

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