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See detailLéonard de Vinci, portraitiste
Fagnart, Laure ULg

Conference given outside the academic context (2011)

Detailed reference viewed: 16 (3 ULg)
See detailLéonard Defrance
Duchesne, Jean-Patrick ULg

in Catalogue de l'exposition La révolution légeoise de 1789 (1989)

Detailed reference viewed: 6 (0 ULg)
See detailLéonard Defrance et la peinture de genre
Duchesne, Jean-Patrick ULg

in Stiennon, Jacques; Duchesne, Jean-Patrick; Randaxhe, Yves (Eds.) Cinq siècles de peinture en Wallonie (1988)

Detailed reference viewed: 27 (2 ULg)
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See detailLéonard Defrance et la Révolution liégeoise
Duchesne, Jean-Patrick ULg

in Actes du XXVIIe congrès du Comité international d’Histoire de l’Art (1989), L’art et les révolutions. Section 1, L’art au temps de la Révolution française. 31 août-4 septembre 1989 (1992)

Detailed reference viewed: 26 (0 ULg)
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See detailLéonard Defrance ou l'apologie de la moyenne
Duchesne, Jean-Patrick ULg

in Art&Fact (1988), 7

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See detailLéonard Defrance, l'Émulation de Liège et l'Esprit des journaux
Droixhe, Daniel ULg

in Revue Belge d'Archéologie et d'Histoire de l'Art (1992), 61

Detailed reference viewed: 37 (1 ULg)
See detail«Leopardi lettore di Francesco Guicciardini»
Moreno, Paola ULg

in Leopardi in Europa (2000)

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See detailLeopold August Warnkönig, een voorganger van François Laurent in de universiteiten van Luik en Gent
Gerkens, Jean-François ULg

in Fundamina : A Journal of Legal History (2014), 20(1), 336-348

The universities of Ghent and Liège were both established in 1817, the year of the discovery of the Veronese palimpsest. For the University of Liège, it meant that an eminent German academic, Leopold ... [more ▼]

The universities of Ghent and Liège were both established in 1817, the year of the discovery of the Veronese palimpsest. For the University of Liège, it meant that an eminent German academic, Leopold August Warnkönig, would bring the knowledge of the German Historical School not only to Liège, but also to Belgium, as he also taught at the Universities of Louvain and Ghent. Warnkönig is probably somewhat less known in Belgium than François Laurent, who followed a similar academic journey: studying in Liège and becoming a professor in Ghent. This article tries to shed some light on the achievements of Warnkönig – a great German scholar who deserves much credit for his contribution to Belgium jurisprudence. [less ▲]

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See detailLéopold Auguste Warnkönig et François Laurent Pionniers des Universités de Liège et Gand
Gerkens, Jean-François ULg

in Revue de la Faculté de Droit de l'Université de Liège (2014), (1), 157-171

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See detailLéopold Ier et la religion catholique (1831-1865). L’opium d’un Roi ?
Genin, Vincent ULg

in Trésor de Liège : Bulletin trimestriel (2014), 38

Detailed reference viewed: 23 (10 ULg)
See detailLeopold II en zijn koloniale doctrine: van de hertog van Brabant tot 1885.
Vandersmissen, Jan ULg

in Dujardin, Vincent; Planche, Stéphanie; Plasman, Pierre-Luc (Eds.) et al Leopold II, ongegeneerd genie? Buitenlandse politiek en kolonisatie. (2009)

Detailed reference viewed: 32 (2 ULg)
See detailLéopold II et sa doctrine coloniale: du duc de Brabant à 1885
Vandersmissen, Jan ULg

in Dujardin, Vincent; Rosoux, Valérie; de Wilde d'Estmael, Tanguy (Eds.) et al Léopold II. Entre génie et gêne. politique étrangère et colonisation. (2009)

Detailed reference viewed: 44 (4 ULg)
See detailLéopold II, un roi déterminé face à la guerre franco-allemande de 1870.
Raxhon, Philippe ULg

in Dujardin, Vincent; Rosoux, Valérie; de Wilde, Tanguy (Eds.) Léopold II. Entre génie et gêne. Politique étrangère et colonisation. (2009)

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See detailLeptin Effects on Pulsatile Gonadotropin Releasing Hormone Secretion from the Adult Rat Hypothalamus and Interaction with Cocaine and Amphetamine Regulated Transcript Peptide and Neuropeptide Y
Parent, Anne-Simone ULg; LEBRETHON, Marie-Christine ULg; Gerard, Arlette ULg et al

in Regulatory Peptides (2000), 92(1-3), 17-24

Leptin may act as a negative feedback signal to the hypothalamic control of appetite through suppression of neuropeptide Y (NPY) secretion and stimulation of cocaine and amphetamine regulated transcript ... [more ▼]

Leptin may act as a negative feedback signal to the hypothalamic control of appetite through suppression of neuropeptide Y (NPY) secretion and stimulation of cocaine and amphetamine regulated transcript (CART). We aimed at studying the effects of leptin, CART and NPY on the hypothalamic control of the pituitary-gonadal system. Pulsatile gonadotropin-releasing hormone (GnRH) secretion was studied in vitro using retrochiasmatic hypothalamic explants from adult rats. In the female, GnRH pulse amplitude was significantly increased by leptin (10(-7) M) and CART (10(-6) M) irrespective of the estrus cycle phase while no such effects were seen in the male. The GnRH interpulse interval was not affected in both sexes. Passive immunoneutralization against CART caused a reduction in GnRH pulse amplitude in the female. A slight but significant increase in GnRH pulse amplitude was caused by NPY (10(-7) M) in the female. However, GnRH pulse amplitude was not affected by a Y5-receptor antagonist (10(-6) M) while the interpulse interval was significantly increased as shown previously in the male. The increase in GnRH pulse amplitude caused by leptin was totally prevented by coincubation with an anti-CART antiserum whereas it was not affected by coincubation with the NPY Y5-receptor antagonist (10(-7) M). In conclusion, leptin and NPY show separate permissive effects on GnRH secretion in the adult rat hypothalamus. In both sexes, NPY is prominently involved in the control of the frequency of pulsatile GnRH secretion through the Y5 receptor subtype. Leptin causes a female-specific facilitatory effect on GnRH pulse amplitude which is mediated by CART and which occurs irrespective of the estrus cycle phase. [less ▲]

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See detailLeptin Reverts Pro-Apoptotic and Antiproliferative Effects of α-Linolenic Acids in BCR-ABL Positive Leukemic Cells: Involvement of PI3K Pathway
Beaulieu, Aurore ULg; Poncin, Géraldine ULg; Belaid-Choucair, Zakia et al

in PLoS ONE (2011), 6(10), 25651

It is suspected that bone marrow (BM) microenvironmental factors may influence the evolution of chronic myeloid leukaemia (CML). In this study, we postulated that adipocytes and lipids could be involved ... [more ▼]

It is suspected that bone marrow (BM) microenvironmental factors may influence the evolution of chronic myeloid leukaemia (CML). In this study, we postulated that adipocytes and lipids could be involved in the progression of CML. To test this hypothesis, adipocytes were co-cultured with two BCR-ABL positive cell lines (PCMDS and K562). T cell (Jurkat) and stroma cell (HS-5) lines were used as controls. In the second set of experiments, leukemic cell lines were treated with stearic, oleic, linoleic or α-linolenic acids in presence or absence of leptin. Survival, proliferation, leptin production, OB-R isoforms (OB-Ra and OB-Rb), phosphoinositide 3-kinase (PI3k) and BCL-2 expression have been tested after 24h, 48h and 72h of treatment. Our results showed that adipocytes induced a decrease of CML proliferation and an increase in lipid accumulation in leukemic cells. In addition, CML cell lines induced adipocytes cell death. Chromatography analysis showed that BM microenvironment cells were full of saturated (SFA) and monounsaturated (MUFA) fatty acids, fatty acids that protect tumor cells against external agents. Stearic acid increased Bcl-2 expression in PCMDS, whereas oleic and linoleic acids had no effects. In contrast, α-linolenic acid decreased the proliferation and the survival of CML cell lines as well as BCL-2 and OB-R expression. The effect of α-linolenic acids seemed to be due to PI3K pathway and Bcl-2 inhibition. Leptin production was detected in the co-culture medium. In the presence of leptin, the effect of α-linolenic acid on proliferation, survival, OB-R and BCl-2 expression was reduced.</p> [less ▲]

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See detailLa leptine et les hormones métaboliques chez trois races de bovins viandeux
Pirotte, Cécile ULg; Bister, J. L.; Cabaraux, Jean-François ULg et al

in 10èmes Rencontres autour des Recherches sur les Ruminants (2003)

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See detailLeptogenesis in flavor models with type I and II seesaws
Aristizabal Sierra, Diego ULg; Bazzocchi, Federica; de Medeiros Varzielas, Ivo

in Nuclear Physics B (2012), 858

In type I seesaw models with flavor symmetries accounting for the lepton mixing angles the CP asymmetry in right-handed neutrino decays vanishes in the limit in which the mixing pattern is exact. We study ... [more ▼]

In type I seesaw models with flavor symmetries accounting for the lepton mixing angles the CP asymmetry in right-handed neutrino decays vanishes in the limit in which the mixing pattern is exact. We study the implications that additional degrees of freedom from type II seesaw may have for leptogenesis in such a limit. We classify in a model independent way the possible realizations of type I and II seesaw schemes, differentiating between classes in which leptogenesis is viable or not. We point out that even with the interplay of type I and II seesaws there are generic classes of minimal models in which the CP asymmetry vanishes. Finally we analyze the generation of the lepton asymmetry by solving the corresponding kinetic equations in the general case of a mild hierarchy between the light right-handed neutrino and the scalar triplet masses. We identify the possible scenarios in which leptogenesis can take place. [less ▲]

Detailed reference viewed: 24 (8 ULg)