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See detailImidazol(in)ium-2-carboxylates as N-heterocyclic carbene precursors for the synthesis of second generation ruthenium metathesis catalysts
Sauvage, Xavier ULiege; Demonceau, Albert ULiege; Delaude, Lionel ULiege

in Advanced Synthesis & Catalysis (2009), 351(11-12), 2031-2038

Five well-known ruthenium-N-heterocyclic carbene (NHC) catalysts for olefin metathesis and related reactions, including the second generation Grubbs and Hoveyda-Grubbs catalysts, were prepared by ... [more ▼]

Five well-known ruthenium-N-heterocyclic carbene (NHC) catalysts for olefin metathesis and related reactions, including the second generation Grubbs and Hoveyda-Grubbs catalysts, were prepared by phosphane exchange between first generation ruthenium-benzylidene or indenylidene complexes and NHCs generated in situ upon thermolysis of imidazol(in)ium-2-carboxylates. Because N-heterocyclic carbene -carbon dioxide adducts (NHC · CO2) are stable zwitterionic compounds that can be stored and handled with no particular precautions, this procedure is particularly attractive from a practical point of view. Reaction courses were conveniently monitored by 31P NMR spectroscopy and the experimental conditions were carefully adjusted to obtain high yields of pure products within short periods of time. [less ▲]

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See detailImidazol(in)ium-2-carboxylates as N-heterocyclic carbene precursors in ruthenium-arene catalysts for olefin metathesis and cyclopropanation
Tudose, Adriana; Demonceau, Albert ULiege; Delaude, Lionel ULiege

in Journal of Organometallic Chemistry (2006), 691(24-25), 5356-5365

Five imidazol(in)ium-2-carboxylates bearing cyclohexyl, mesityl, or 2,.6-diisopropylphenyl substituents on their nitrogen atoms were prepared from the corresponding N-heterocyclic carbenes (NHCs) by ... [more ▼]

Five imidazol(in)ium-2-carboxylates bearing cyclohexyl, mesityl, or 2,.6-diisopropylphenyl substituents on their nitrogen atoms were prepared from the corresponding N-heterocyclic carbenes (NHCs) by reaction with carbon dioxide. They were characterized by IR and NMR spectroscopies, and by TGA. Their ability to act as NHC precursors for in situ catalytic applications was probed in ruthenium-promoted olefin metathesis and cyclopropanation reactions. When visible light induced ring-opening metathesis polymerization of cyclooctene or cyclopropanation of styrene with ethyl diazoacetate were carried out at 60 degrees C in the presence of [RuCl2(p-cymene)](2), the NHC (.) CO2 adducts and their NHC (.) HX counterparts (X = Cl, BF4) displayed similar activities. When metathesis polymerizations were performed at room temperature, the carboxylates proved far superior to the corresponding imidazol(in)ium acid salts. They displayed the same level of activity as the preformed RuCl2(p-cymene)(IMes) complex, whereas the combination of NHC (.) HX and KO-t-Bu were almost totally inactive. Results obtained for cyclopropanation reactions at room temperature did not show such a large discrepancy of behavior between the two types of adducts. (c) 2006 Elsevier B.V. All rights reserved. [less ▲]

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See detailImidazolidinones structurally-related to penicillins: synthesis, molecular modeling and biological evalutation
Marchand-Brynaert, Jacqueline; Lamotte-Brasseur, Josette; Dive, Georges ULiege

in Drug Metabolism and Drug Interactions (1994), 11(2), 85-109

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See detailImidazolopyrazinones as potential antioxydants
Devillers, Ingrid; Dive, Georges ULiege; De Tollenaere, Catherine et al

in Bioorganic & Medicinal Chemistry Letters (2001), 11(17), 2305-2309

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See detailImiquimod et PDT dans le traitement des carcinomes basocellulaires, des kératoses actiniques et de la maladie de Bowen
Wauters, Odile ULiege; Nikkels, Arjen ULiege

in Dermatologie Actualité (2009), 117

Le traitement des carcinomes basocellulaires (CBC) superficiels, des petits CBC nodulaires, des kératoses actiniques (KA) et de la maladie de Bowen soit par imiquimod soit par photothérapie dynamique (PDT ... [more ▼]

Le traitement des carcinomes basocellulaires (CBC) superficiels, des petits CBC nodulaires, des kératoses actiniques (KA) et de la maladie de Bowen soit par imiquimod soit par photothérapie dynamique (PDT) est actuellement bien ancré dans l'arsenal thérapeutique du dermatologue. Les réussites thérapeutiques de ces deux modalités sont incontestables et avoisinent les 80 % dans les deux cas. Chaque méthode est liée à des effets indésirables propres et inhérents aux différents mécanismes d'action. Cette revue compare les données de la littérature évaluant l'efficacité, le taux de récidive, la tolérance, et les résultats cosmétiques pour les différentes indications reconnues en Belgique. Afin de mieux pouvoir cerner le niveau de preuve scientifique des études, le niveau d'évidence des publications est également mentionné. Ensuite seront discutés les avantages et les limites de ces techniques en pratique quotidienne. [less ▲]

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See detailImiquimod-responsive basal cell carcinomas and factor XIIIa-enriched dendrocytes.
Quatresooz, Pascale ULiege; Pierard, Gérald ULiege

in Clinical & Experimental Dermatology (2003), 28 Suppl 1

Dermal dendrocytes (DDs) are dendritic cells that exhibit immunoreactivity for factor XIIIa, and are frequently found in conjunction with basal cell carcinomas (BCCs). Imiquimod was applied to 12 ... [more ▼]

Dermal dendrocytes (DDs) are dendritic cells that exhibit immunoreactivity for factor XIIIa, and are frequently found in conjunction with basal cell carcinomas (BCCs). Imiquimod was applied to 12 superficial BCCs every 3 days for 8 weeks. One week after completion of treatment, seven lesions appeared to have resolved, while five displayed evidence of residual BCC. Prior to initiation of treatment, the seven imiquimod-responsive BCCs were surrounded by numerous DDs, whereas the five imiquimod-resistant BCCs had fewer DDs next to them at the time of entry into the study. It appears that the pretreatment density in DDs may affect the efficacy of imiquimod in eradicating skin tumours. [less ▲]

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See detailIMISCOE Research Network, Training and Research Inventory
Gsir, Sonia ULiege

Report (2011)

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See detailIMISCOE Research Network, Training and Research Inventory
Gsir, Sonia ULiege

Report (2012)

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See detailIMISCOE Research Network, Training and Research Inventory 2015
Mescoli, Elsa ULiege

Report (2015)

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See detailL'Imitation de Jésus-Christ
Henneau, Marie-Elisabeth ULiege

in Corbin, Alain; Lemaître, Nicole; Thélamon, Françoise (Eds.) et al Histoire du Christianisme. Pour mieux comprendre notre temps (2007)

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See detailL’imitation du cirque
Dubouclez, Olivier ULiege

in LEXI/textes (2007)

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See detailImitation et prise de position. À propos de quelques collectifs fumistes
Saint-Amand, Denis ULiege

Conference (2010, January 14)

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See detailImitations et transmission culturelle dans le chant du Pinson des arbres Fringilla coelebs ?
Metzmacher, Maxime ULiege

in Alauda (2016), 84

The Chaffinch (Fringilla coelebs) can learn heterospecific vocalizations. Yet, in full song, an entire heterospecific song output seems to be a rare event. The most numerous examples of Chaffinches ... [more ▼]

The Chaffinch (Fringilla coelebs) can learn heterospecific vocalizations. Yet, in full song, an entire heterospecific song output seems to be a rare event. The most numerous examples of Chaffinches mimicking other species involve calls. The most frequent imitations are those of widespread, noisy species and very common breeders in or near the habitat of the Chaffinch. In the first part of the song (the trill), the imitations - as the other syllables - are usually repeated in series without reorganization of sound material. In this case, the vocal appropriation is an iterative process. The imitations incorporated in the final flourish, on the other hand, are more rarely repeated and some are not at all. They are almost exclusively short acute notes (e.g., calls of Motacilla alba or Sitta europea). Such recombinations increases the frequency span of this flourish and modifies at the same time both its composition and its rhythmic structure. In this case, it is a generative process. The Chaffinch has the capacity to produce very accurate copying. This faithful copying enables cultural transmission, for more than 40 years, of certain song types and heterospecific imitations. The juvenile seems to have some foreknowledge of the specific song’s syntax rules and the position of the heterospecific imitations in the song seems to be nonrandom. This foreknowledge might involve constraints that channel syllables into the appropriate section of the song. Among several European Chaffinch populations, the borrowed calls incorporated in the song’s final flourish are mainly short high-pitched notes. The following functions for some heterospecific imitations in this final flourish are suggested for Chaffinches : 1) Ranging hypothesis. The degradation of these high frequency notes might allow receivers to assess the distance of to the singer. 2) Sexual selection. The final flourish could be a sexy flourish, due to its broad bandwidth, syllabic diversity and dynamic rhythm. In this flourish, the heterospecific syllables’ acoustic structure could strengthen the supernormal nature of this vocal stimulus and might have a selective advantage. [less ▲]

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See detailImitative learning for designing intelligent agents for video games
Gemine, Quentin ULiege

Master's dissertation (2012)

Over the past decades, video games have become increasingly popular and complex. Virtual worlds have gone a long way since the first arcades and so have the artificial intelligence (AI) techniques used to ... [more ▼]

Over the past decades, video games have become increasingly popular and complex. Virtual worlds have gone a long way since the first arcades and so have the artificial intelligence (AI) techniques used to control agents in these growing environments. Tasks such as world exploration, constrained pathfinding or team tactics and coordination just to name a few are now default requirements for contemporary video games. However, despite its recent advances, video game AI still lacks the ability to learn. In this work, we attempt to break the barrier between video game AI and machine learning and propose a generic method allowing real-time strategy (RTS) agents to learn production strategies from a set of recorded games using supervised learning. We test this imitative learning approach on the popular RTS title StarCraft II and successfully teach a Terran agent facing a Protoss opponent new production strategies. [less ▲]

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See detailImitative Learning for Online Planning in Microgrids
Aittahar, Samy ULiege; François-Lavet, Vincent ULiege; Lodeweyckx, Stefan et al

in Woon, Wei Lee; Zeyar, Aung; Stuart, Madnick (Eds.) Data Analytics for Renewable Energy Integration (2015, December 15)

This paper aims to design an algorithm dedicated to operational planning for microgrids in the challenging case where the scenarios of production and consumption are not known in advance. Using expert ... [more ▼]

This paper aims to design an algorithm dedicated to operational planning for microgrids in the challenging case where the scenarios of production and consumption are not known in advance. Using expert knowledge obtained from solving a family of linear programs, we build a learning set for training a decision-making agent. The empirical performances in terms of Levelized Energy Cost (LEC) of the obtained agent are compared to the expert performances obtained in the case where the scenarios are known in advance. Preliminary results are promising. [less ▲]

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See detailImitative Learning for Real-Time Strategy Games
Gemine, Quentin ULiege; Safadi, Firas ULiege; Fonteneau, Raphaël ULiege et al

in Proceedings of the 2012 IEEE Conference on Computational Intelligence and Games (2012)

Over the past decades, video games have become increasingly popular and complex. Virtual worlds have gone a long way since the first arcades and so have the artificial intelligence (AI) techniques used to ... [more ▼]

Over the past decades, video games have become increasingly popular and complex. Virtual worlds have gone a long way since the first arcades and so have the artificial intelligence (AI) techniques used to control agents in these growing environments. Tasks such as world exploration, con- strained pathfinding or team tactics and coordination just to name a few are now default requirements for contemporary video games. However, despite its recent advances, video game AI still lacks the ability to learn. In this paper, we attempt to break the barrier between video game AI and machine learning and propose a generic method allowing real-time strategy (RTS) agents to learn production strategies from a set of recorded games using supervised learning. We test this imitative learning approach on the popular RTS title StarCraft II® and successfully teach a Terran agent facing a Protoss opponent new production strategies. [less ▲]

Detailed reference viewed: 154 (25 ULiège)
See detailImlil (High Atlas), the Toubkal, the track, the local community, and the tour operators
Schmitz, Serge ULiege

in Sustainable Development in Tropical Far North Queensland : IGU, University of New England, July 9-13 (2006)

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See detailL'immacolato D'Annunzio. Versilia, settembre 1906
Benzoni, Pietro ULiege

in S. Luzzatto; G. Pedullà; D. Scarpa (Eds.) Atlante della letteratura italiana. Dal Risorgimento a oggi. Volume. III (2012)

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See detailL'immaginario lunare
Curreri, Luciano ULiege

in La Battana (1996), 120

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