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See detailAutonomous Multicast Reflectors over Active Networks
Yamamoto, Lidia; Leduc, Guy ULg

Conference (2001, March)

We present a reflector service that seeks to maintain application-level connectivity in the presence of network-level multicast failures. The service is based on the dynamic deployment of autonomous ... [more ▼]

We present a reflector service that seeks to maintain application-level connectivity in the presence of network-level multicast failures. The service is based on the dynamic deployment of autonomous reflectors based on mobile code, on top of an active network infrastructure. It is able to repair multicast tree failures by building a self-organising tree of reflectors, which will be connected to each other via unicast. We focus on the basic decision mechanisms related to code mobility during the tree construction and destruction phases, namely: cloning, migration, merging and termination. To assist with the decisions a market-based mechanism is employed. We show some preliminary simulation results that confirm the viability of the approach and settle directions for further research. [less ▲]

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See detailAutonomous Reflectors over Active Networks: Towards Seamless Group Communication
Yamamoto, Lidia; Leduc, Guy ULg

in The Interdisciplinary Journal of Artificial Intelligence & the Simulation of Behavious (AISBJ) (2001), 1(1), 125-146

We present a reflector service that seeks to maintain application-level connectivity in the presence of network-level multicast failures. The service is based on the dynamic deployment of autonomous ... [more ▼]

We present a reflector service that seeks to maintain application-level connectivity in the presence of network-level multicast failures. The service is based on the dynamic deployment of autonomous reflectors modelled as mobile agents on top of an active network infrastructure. It is able to repair multicast tree failures by building a self-organising tree of reflectors, which will be connected to each other via unicast. The scheme is decentralised and takes into account node and link resources to find agent locations that lead to low cost tree configurations. We focus on the basic decision mechanisms related to code mobility during the tree construction and destruction phases, namely: cloning, migration, merging and termination. We show some preliminary simulation results that confirm the viability of the approach and settle directions for further research. [less ▲]

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See detailAutonomous rigid body attitude synchronization
Sarlette, Alain ULg; Sepulchre, Rodolphe ULg; Leonard, Naomi

in Proceedings of the 46th IEEE Conference on Decision and Control (2007, December)

This paper studies some extensions to the decentralized attitude synchronization of identical rigid bodies. Considering fully actuated Euler equations, the communication links between the rigid bodies are ... [more ▼]

This paper studies some extensions to the decentralized attitude synchronization of identical rigid bodies. Considering fully actuated Euler equations, the communication links between the rigid bodies are limited and the available information is restricted to relative orientations and angular velocities. In particular, no leader nor external reference dictates the swarm's behavior. The control laws are derived using two classical approaches of nonlinear control - tracking and energy shaping. This leads to a comparison of two corresponding methods which are currently considered for distributed synchronization - consensus and stabilization of mechanical systems with symmetries. [less ▲]

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See detailAutonomous rigid body attitude synchronization
Sarlette, Alain ULg; Sepulchre, Rodolphe ULg; Leonard, Naomi

in Automatica (2009), 45(2), 572-577

Control laws to synchronize attitudes in a swarm of fully actuated rigid bodies, in the absence of a common reference attitude or hierarchy in the swarm, are proposed in [Smith, T. R., Hanssmann, H ... [more ▼]

Control laws to synchronize attitudes in a swarm of fully actuated rigid bodies, in the absence of a common reference attitude or hierarchy in the swarm, are proposed in [Smith, T. R., Hanssmann, H., & Leonard, N.E. (2001). "Orientation control of multiple underwater vehicles with symmetry-breaking potentials". In Proc. 40th IEEE conf. decision and control (pp. 4598–4603); Nair, S., Leonard, N. E. (2007). "Stable synchronization of rigid body networks". In Networks and Heterogeneous Media, 2(4), 595–624]. The present paper studies two separate extensions with the same energy shaping approach: (i) locally synchronizing the rigid bodies’ attitudes, but without restricting their final motion and (ii) relaxing the communication topology from undirected, fixed and connected to directed, varying and uniformly connected. The specific strategies that must be developed for these extensions illustrate the limitations of attitude control with reduced information. [less ▲]

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See detailAutonomously functioning thyroid nodules in a patient with a thyrotropin-secreting pituitary adenoma: possible cause--effect relationship.
Abs, R.; Stevenaert, Achille ULg; Beckers, Albert ULg

in European Journal of Endocrinology (1994), 131(4), 355-8

A 51-year-old female patient with long-standing hyperthyroidism due to a thyrotropin-secreting pituitary adenoma is reported, who became thyrotoxic again shortly after successful pituitary surgery ... [more ▼]

A 51-year-old female patient with long-standing hyperthyroidism due to a thyrotropin-secreting pituitary adenoma is reported, who became thyrotoxic again shortly after successful pituitary surgery. Functional testing and scintigraphy suggested the diagnosis of autonomous functioning thyroid nodules, which was confirmed by pathological examination of the resected thyroid tissue. This is the first report revealing the transition from a pituitary-dependent to a thyroid-dependent hyperthyroidism. Autonomous functioning thyroid nodules are, however, considered an intrinsic thyroid defect. In similarity with other disorders, in which trophic hormones may induce an autonomous secretion by the target gland, this report opens the possibility that a humoral factor may play a role in the development of autonomous functioning thyroid nodules. [less ▲]

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See detailAutonomy to plant growth regulators and gene expression in periwinkle cultures in vitro
Droual, Anne-Marie; Hamdi, Said; Creche, Joel et al

in Journal of Plant Physiology (1998), 153(5-6), 623-630

To better understand the effect of habituation on gene expression in plant cells, we have compared the accumulation of specific mRNAs encoding respectively two proline-rich proteins, a chaperone protein ... [more ▼]

To better understand the effect of habituation on gene expression in plant cells, we have compared the accumulation of specific mRNAs encoding respectively two proline-rich proteins, a chaperone protein and three enzymes linking primary and secondary metabolisms in two models of in vitro culture of periwinkle. These models consisted of two couples of a 2,4-dichlorophenoxyacetic acid-dependent/2,4-dichlorophenoxyacetic acid independent line in which autonomy to auxin and cytokinin was obtained either through habituation or through transformation with the isopentenyltransferase gene from Agrobacterium tumefaciens. Results showed that gene expression was modified by plant growth regulator autonomy but differently according to the type of autonomy: only the gene encoding a hydroxyproline-rich glycoprotein was regulated similarly in both PGR-independent lines. On the other hand, PGR autonomy did not lead to total insensitivity to exogenously-applied PGRs, and the two PGR autonomous lines did not accumulate indole alkaloids for different reasons. [less ▲]

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See detailAutonoos : Le grec ancien pour grands débutants. Volume 1
Renaud, Jean-Michel ULg; Wathelet, Paul ULg

Book published by C.I.P.L. (2003)

Cet ouvrage comporte une grammaire du grec ancien, la plus complète en langue française qui soit disponible à présent. Les faits de grammaire, morphologie et syntaxe, y sont justifiés dans la perspective ... [more ▼]

Cet ouvrage comporte une grammaire du grec ancien, la plus complète en langue française qui soit disponible à présent. Les faits de grammaire, morphologie et syntaxe, y sont justifiés dans la perspective de l’évolution linguistique du grec. Chacun des chapitres est accompagné d’un vocabulaire dont les mots sont rapprochés, là où c’est possible, du ou des termes français correspondants. Ce vocabulaire comporte quelque 2500 mots. A la suite de chaque chapitre, des exercices sont proposés qui permettent d’ utiliser tous les mots de vocabulaire enseignés. Ces exercices figurent à la fois en français et en grec, à des pages différentes, de telle sorte qu’un élève puisse par lui-même vérifier ses connaissances. Dès que la chose est possible, des extraits des meilleurs auteurs classiques sont donnés à traduire, avec une introduction, le vocabulaire et les explications grammaticales indispensables, un commentaire et une traduction. L’ouvrage comporte encore six annexes (voir Volume 2). [less ▲]

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See detailAutonoos : Le grec ancien pour grands débutants. Volume 2
Renaud, Jean-Michel ULg; Wathelet, Paul ULg

Book published by C.I.P.L. (2003)

L’ouvrage comporte six annexes : les temps primitifs des verbes réputés irréguliers en grec classique, ces temps primitifs sont sans doute pour la première fois expliqués, dans la mesure du possible, par ... [more ▼]

L’ouvrage comporte six annexes : les temps primitifs des verbes réputés irréguliers en grec classique, ces temps primitifs sont sans doute pour la première fois expliqués, dans la mesure du possible, par l’histoire de la langue ; la formation des noms et des adjectifs, selon les règles d’évolution de la langue ; les usages principaux des particules grecques, exemples à l’appui ; les formes du duel ; quelques règles de prosodie et de métrique ; et enfin une dernière annexe, beaucoup plus importante quant à son ampleur, qui fournit les principales caractéristiques des dialectes littéraires (langue épique, éolien oriental, dorien de la lyrique et ionien oriental), avec de nouveau des extraits d’auteurs, introduits, commentés (avec le vocabulaire et la justification des formes) et traduits. [less ▲]

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See detailAutopsie d'un patient atteint de syndrome de McCune-Albright
Beckers, Albert ULg; Tamagno, J. L.

Scientific conference (2006, December 15)

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See detailAutopsie d'une expérience
Claustriaux, Jean-Jacques ULg

Learning material (1983)

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See detailAutopsie d'une rencontre
Dumortier, Jean-Louis ULg

in Échanges (2010), 20

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See detailAutopsie des expériences
Claustriaux, Jean-Jacques ULg

in Mieux collecter l'information et mieux l'analyser : cas de l'expérimentation agricole (1999, December)

La planification des expériences en général et agricoles en particulier est une phase importante et décisive pour la qualité des résultats. La grande variabilité du matériel végétal et de l'hétérogénéité ... [more ▼]

La planification des expériences en général et agricoles en particulier est une phase importante et décisive pour la qualité des résultats. La grande variabilité du matériel végétal et de l'hétérogénéité spatiale en milieu tropical nécessitent la mise en oeuvre des outils statistiques pour confirmer ou infirmer les résultats obtenus. [less ▲]

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See detailAn Autoradiographic Study of Alpha 1-Adrenergic Receptors in the Brain of the Japanese Quail (Coturnix Coturnix Japonica)
Balthazart, Jacques ULg; Ball, G. F.; McEwen, B. S.

in Cell & Tissue Research (1989), 258(3), 563-8

The neuroanatomical distribution of alpha 1-adrenergic receptors was studied in Japanese quail by quantitative in vitro autoradiography using the specific antagonist [3H]prazosin as the ligand. The ... [more ▼]

The neuroanatomical distribution of alpha 1-adrenergic receptors was studied in Japanese quail by quantitative in vitro autoradiography using the specific antagonist [3H]prazosin as the ligand. The presence of saturable (Bmax less than 200 fmol/mg protein) high affinity (Kd less than 0.12 nM) binding sites was detected by saturation analysis. High concentrations of [3H]prazosin binding sites were detected in the archistriatum/pars ventralis, the hippocampus, the cortex piriformis, the area corticoidea dorsolateralis, the dorsal thalamus, and the nucleus praetectalis. Lower concentrations were seen in the intercollicular nucleus, the lateral septum, and the posterior and tuberal hypothalamus. Very little binding was seen in the preoptic and anterior hypothalamic areas. The relatively high number of binding sites identified in the telencephalic structures agrees well with previous mammalian studies. This is in contrast with the pattern in the anterior hypothalamus where, in mammals, a number of nuclei have been reported to contain a high receptor density. [less ▲]

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See detailAutorégulation de la production endogène de glucose
PAQUOT, Nicolas ULg; Schneiter, ph; Jequier, E. et al

in Cahiers de Nutrition et de Diététique (1995)

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See detailAutoregulation of endogenous glucose production in man.
Tappy, L.; Tounian, P.; PAQUOT, Nicolas ULg

Poster (1996)

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See detailAutoregulation of endogenous glucose production in man.
Tappy, L.; Tounian, P.; Paquot, Nicolas ULg

in Biochemical Society Transactions (1997), 25(1), 11-3

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See detailAutori e critici alla Giornata Italiana
Benzoni, Pietro ULg

Conference given outside the academic context (2009)

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See detailAutorisations administratives et troubles de voisinage
Delnoy, Michel ULg

in Chroniques de droit à l'usage des juges de paix et de police 2013 (2013)

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See detailAutorisations et permis
Delnoy, Michel ULg

in Demey Th.; Delnoy, Michel (Eds.) Autorisations et permis (2000)

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