References of "2006"
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See detailBulletin de la Société Voltaire n°12
Tilkin, Françoise ULg

E-print/Working paper (2006)

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See detailMapping uncertainty and phylogenetic uncertainty in ancestral character state reconstruction: An example in the moss genus Brachytheciastrum
Vanderpoorten, Alain ULg; Goffinet, B.

in Systematic Biology (2006), 55(6), 957-971

The evolution of species traits along a phylogeny can be examined through an increasing number of possible, but not necessarily complementary, approaches. In this paper, we assess whether deriving ... [more ▼]

The evolution of species traits along a phylogeny can be examined through an increasing number of possible, but not necessarily complementary, approaches. In this paper, we assess whether deriving ancestral states of discrete morphological characters from a model whose parameters are (i) optimized by ML on a most likely tree; (ii) optimized by ML onto each of a Bayesian sample of trees; and (iii) sampled by a MCMC visiting the space of a Bayesian sample of trees affects the reconstruction of ancestral states in the moss genus Brachytheciastrum. In the first two methods, the choice of a single- or two-rate model and of a genetic distance (wherein branch lengths are used to determine the probabilities of change) or speciational (wherein changes are only driven by speciation events) model based upon a likelihood-ratio test strongly depended on the sampled trees. Despite these differences in model selection, reconstructions of ancestral character states were strongly correlated to each others across nodes, often at r > 0.9, for all the characters. The Bayesian approach of ancestral character state reconstruction offers, however, a series of advantages over the single-tree approach or the ML model optimization on a Bayesian sample of trees because it does not involve restricting model parameters prior to reconstructing ancestral states, but rather allows a range of model parameters and ancestral character states to be sampled according to their posterior probabilities. From the distribution of the latter, conclusions on trait evolution can be made in a more satisfactorily way than when a substantial part of the uncertainty of the results is obscured by the focus on a single set of model parameters and associated ancestral states. The reconstructions of ancestral character states in Brachytheciastrum reveal rampant parallel morphological evolution. Most species previously described based on phenetic grounds are thus resolved of polyphyletic origin. Species polyphylly has been increasingly reported among mosses, raising severe reservations regarding current species definition. [less ▲]

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See detailInferring Groups of Correlated Failures
Lepropre, Jean; Leduc, Guy ULg

Poster (2006, December)

We compare and evaluate different methods to infer groups of correlated failures. These methods try to group failure events occurring nearly simultaneously in clusters. Indeed if several failures occur ... [more ▼]

We compare and evaluate different methods to infer groups of correlated failures. These methods try to group failure events occurring nearly simultaneously in clusters. Indeed if several failures occur nearly at the same moment in a network, it is possible that these failures have the same root cause. The input data of our algorithms are IP failure notifications that can be provided by several sources. We consider two sources: IS-IS Link State Packets (LSPs) and Syslog messages. Our first results on the Abilene and GÉANT networks show that the inference methods behave differently and that using IS-IS LSPs provides more accurate results than using Syslog messages. [less ▲]

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See detailLa répétibilité des frais de défense en matière pénale, oui mais....
Michiels, Olivier ULg; Monville, Pierre ULg

in Michiels, Olivier; Monville, Pierre (Eds.) Actualités de droit pénal et de procédure pénale (2006)

L'article envisage la question de la répétibilité des honoraires et frais d'avocat en procédure pénale, à la suite des arrêts prononcés par la Cour de cassation le 2 septembre 2004 et par la Cour ... [more ▼]

L'article envisage la question de la répétibilité des honoraires et frais d'avocat en procédure pénale, à la suite des arrêts prononcés par la Cour de cassation le 2 septembre 2004 et par la Cour constitutionnelle le 19 avril 2006. [less ▲]

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See detailSurgical treatment of thoraco-abdominal and low thoracic aneurysms of the aorta. One single center experience over ten years
El Arid, J.-M.; CREEMERS, Etienne ULg; Limet, Raymond ULg

in Acta Chirurgica Belgica (2006), 106(6), 669-674

This work presents the results of surgery in thoraco-abdominal aortic aneurysms (TAA) and thoracic descending aortic aneurysms (TDA) in one single center between January 1rst, 1996 and December 31, 2005 ... [more ▼]

This work presents the results of surgery in thoraco-abdominal aortic aneurysms (TAA) and thoracic descending aortic aneurysms (TDA) in one single center between January 1rst, 1996 and December 31, 2005. It concerns open surgery in 42 and endovascular procedures in ten patients. Forty two patients (11 TDA and 31 TAA (4 type I, 12 type II, 6 type III and 9 type IV)) define the open surgery series. Twenty six patients were operated on elective basis and 16 patients in emergency condition. Surgical correction was made under partial cardio-pulmonary bypass (PCPB) in 70% of cases via femoral vessels; most significant intercostal arteries were reimplanted and cerebro-spinal fluid (CSF) drainage used in half of the cases. Operative mortality was zero in the elective group (0/26) and attained 19% in the emergent group (3/16). Mortality was linked to cerebrovascular accidents (CVA) in two cases and post-pump left lung hemorrhagic intarction in one case. The paraplegia accounts 2/26 in the elective group and one in the emergent group (1/16). That is 7.1% in both groups. At the end of five years, survival is 66% in elective group and 74% in the emergency group. Ten patients (5 TDA and 5 TAA (2 type I, 3 type III)) were treated endovascularly. Operative mortality and postoperative paraplegia were nil. [less ▲]

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See detailL'école comme lieu privilégié de socialisation
Robert, Jocelyne ULg

in Education-Formation (2006)

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See detailAn empirical line-by-line model for the infrared solar transmittance spectrum from 700 to 5000 cm(-1)
Hase, F.; Demoulin, Philippe ULg; Sauval, A. J. et al

in Journal of Quantitative Spectroscopy & Radiative Transfer (2006), 102(3), 450-463

An empirical line-by-line model for the infrared solar transmittance spectrum is presented. The model can be incorporated into radiative transfer codes to allow fast calculation of all relevant emission ... [more ▼]

An empirical line-by-line model for the infrared solar transmittance spectrum is presented. The model can be incorporated into radiative transfer codes to allow fast calculation of all relevant emission and absorption features in the solar spectrum in the mid-infrared region from 700 to 5000 cm(-1). The transmittance is modelled as a function of the diameter of the field-of-view centered on the solar disk: the line broadening due to solar rotation as well as center-to-limb variations in strength and width are taken into account for stronger lines. Applications of the model presented here are in the fields of terrestrial remote sensing in the mid-infrared spectral region when the sun is used as radiation source or scattered solar radiation contributes to the measured signal and in the fields of atmospheric radiative transfer algorithms which compute the propagation of infrared solar radiation in the terrestrial atmosphere. (c) 2006 Elsevier Ltd. All rights reserved. [less ▲]

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See detailPredictable disruption tolerant networks and delivery guarantees
François, Jean-Marc; Leduc, Guy ULg

Report (2006)

This article studies disruption tolerant networks (DTNs) where each node knows the probabilistic distribution of contacts with other nodes. It proposes a framework that allows one to formalize the ... [more ▼]

This article studies disruption tolerant networks (DTNs) where each node knows the probabilistic distribution of contacts with other nodes. It proposes a framework that allows one to formalize the behaviour of such a network. It generalizes extreme cases that have been studied before where (a) either nodes only know their contact frequency with each other or (b) they have a perfect knowledge of who meets who and when. This paper then gives an example of how this framework can be used; it shows how one can find a packet forwarding algorithm optimized to meet the 'delay/bandwidth consumption' trade-off: packets are duplicated so as to (statistically) guarantee a given delay or delivery probability, but not too much so as to reduce the bandwidth, energy, and memory consumption. [less ▲]

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See detailCorrélation entre l'augmentation de la densité minérale osseuse et la réduction du risque fracturaire lors d'un traitement par ranélate de strontium
Bruyère, Olivier ULg; Cormier, C.; Fardellone, Patrice et al

in Revue du Rhumatisme (2006, December), 73

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See detailModélisation de la qualité de l’eau de surface de bassins hydrographiques pour la mise en œuvre de la Directive-cadre dans les Pays de l’Est
Everbecq, Etienne ULg; Bourouag, Mohamed ULg; Grard, Aline ULg et al

Report (2006)

Le modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité ... [more ▼]

Le modèle Pegase (Planification Et Gestion de l’ASsainissement des Eaux) est un modèle intégré bassins hydrographiques/rivières qui permet de calculer de façon déterministe et prévisionnelle la qualité des eaux des rivières en fonction des rejets et apports de pollution (relation pression-impact). Développé depuis la fin des années 1980 à l’université de Liège, il permet d'orienter les choix des opérateurs publics et privés en matière de gestion des eaux de surface à l'échelle des petits et grands bassins versants. et privés en matière de gestion des eaux de surface à l'échelle des petits et grands bassins versants. Plusieurs pays de l’Est souhaitant obtenir un support pour les aspects techniques relatifs à la mise en œuvre de la Directive-cadre Eau 2000/60 (DCE), une application pilote du modèle PEGASE a été réalisée en Pologne sur le bassin de la Haute-Vistule, en collaboration avec deux agences de l’eau (« RZGW ») Polonaises. Cette application pilote avait été proposée par l’Office international de l’eau (OIEAU) dans le cadre du jumelage France-Pologne pour la mise en œuvre de la DCE Les tâches à effectuer reprenaient l’aide à la mise en œuvre du modèle ainsi que la formation du personnel chargé d’utiliser in fine le modèle. Le Ministère de l’Environnement polonais a considéré cette application comme étant entièrement réussie et couronnée de succès, malgré les difficultés rencontrées pour rassembler les données de base. Cette application du modèle Pegase en Pologne peut servir d’exemple et de référence pour des applications dans d’autres pays de l’Est (Roumanie, Slovénie, Bulgarie, etc). [less ▲]

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See detailFeedback Control of Impact Dynamics: the Bouncing Ball Revisited
Ronsse, Renaud; Sepulchre, Rodolphe ULg

in Proceedings of the 45th IEEE Conference on Decision and Control (2006, December)

We study the the design of a tracking controller for the popular bouncing ball model: the continuous-time actuation of a table is used to control the impacts of the table with a bouncing ball. The ... [more ▼]

We study the the design of a tracking controller for the popular bouncing ball model: the continuous-time actuation of a table is used to control the impacts of the table with a bouncing ball. The proposed control law uses the impact times as the sole feedback information. We show that the acceleration of the table at impact plays no role in the stability analysis but is an important parameter for the robustness of the feedback system to model uncertainty, in particular to the uncertainty on the coefficient of restitution. [less ▲]

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See detailQuestions de didactique du français langue seconde (cycle de conf.)
Defays, Jean-Marc ULg

Scientific conference (2006, December)

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See detailFragmentation induced in atmospheric pressure photoionization of peptides
Debois, Delphine ULg; Giuliani, Alexandre; Laprévote, Olivier

in Journal of Mass Spectrometry [=JMS] (2006), 41(12), 1554-1560

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See detailBuilding EnCOrE : Encyclopédie de Chimie Organique Electronique
Colaux, Catherine ULg; Seleck, Caroline; Henry, Julie et al

Poster (2006, December)

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See detailPromotion de la santé à l'école ... Les modifications tant attendues de deux décrets
Vandoorne, Chantal ULg

in Education Santé (2006), (218), 7-8

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See detailLectotypification of the Famennian pre-ovule Condrusia rumex Stockmans, 1948
Prestianni, Cyrille ULg; Gerrienne, Philippe ULg

in Review of Palaeobotany and Palynology (2006), 142(3-4), 161-164

Condrusia rumex Stockmans 1948 occurs in several localities of the Belgian Evieux Formation (late Famennian, Upper Devonian). It consists of a hastate organ borne at the tip of "slender, dichotomizing ... [more ▼]

Condrusia rumex Stockmans 1948 occurs in several localities of the Belgian Evieux Formation (late Famennian, Upper Devonian). It consists of a hastate organ borne at the tip of "slender, dichotomizing" axes. Various interpretations have been given to this intriguing structure, ranging from a spore-bearing organ to a fern prothallus but recent investigations consider Condrusia to be an ovulate structures produced by early seed plants. The genus Condrusia includes 3 species: C rumex Stockmans, C. minor Stockmans and C. brevis Petrosjan. C rumex was described by Stockmans in 1948, who provided a diagnosis and illustrations, but failed to designate a holotype. We are currently reinvestigating the genus and we here designate and illustrate a lectotype for the genus and species C. rumex. (c) 2006 Elsevier B.V. All rights reserved. [less ▲]

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See detailLa radiothérapie du cancer du sein
Meyns, Mia ULg

in AIDS Patient Care (2006), 4

Le traitement du cancer du sein est un des exemples les plus probants de l'approche multidisciplinaire oncologique. Dans ce contexte, la radiothérapie a renforcé sa place et son importance, même si ... [more ▼]

Le traitement du cancer du sein est un des exemples les plus probants de l'approche multidisciplinaire oncologique. Dans ce contexte, la radiothérapie a renforcé sa place et son importance, même si certaines incertitudes persistent, comme la prise en charge du creux axillaire, de la chaîne mammaire interne et de la paroi thoracique. La tendance constatée depuis plusieurs années est celle d'une approche moins agressive. [less ▲]

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