References of "2007"
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See detailWhat is it like to be vegetative or minimally conscious?
Laureys, Steven ULg; Boly, Mélanie ULg

in Current Opinion in Neurology (2007), 20(6), 609-613

Purpose of review Patients in a vegetative or minimally conscious state continue to pose problems in terms of diagnosis, prognosis and treatment. Despite recent waves of international media attention ... [more ▼]

Purpose of review Patients in a vegetative or minimally conscious state continue to pose problems in terms of diagnosis, prognosis and treatment. Despite recent waves of international media attention following Terri Schiavo's death and the 'miracle recovery' of Terry Wallis, research efforts aimed at increasing our knowledge about brain function in these conditions remain scarce and must address a series of difficulties, including financial and ethical barriers. Here we review current possibilities and limitations of clinical and para-clinical assessment of chronic disorders of consciousness. Recent findings During the past year the field has witnessed publication of significant, yet isolated, case reports in top-ranking journals, including Science and Nature. Such milestone reports and other impressive recent technological advances in the study of vegetative and minimally conscious patients reveal enthralling areas of science that must find their way to clinical medical reality. Summary Consciousness is a subjective experience whose study has remained within the purview of philosophy for millennia. That has finally changed, and empirical evidence from functional neuroimaging offers a genuine glimpse at a solution to the infamous mind-body conundrum. New technological and scientific advances offer the neurological community unique ways to improve our understanding and management of vegetative and minimally conscious patients. [less ▲]

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See detailSphinxiocarpon, a new name for Sphinxia Li, Hilton & Hemsley, 1997 - not Reid & Chandler, 1933
Wang, Qi; Xue, Jinzhuang; Prestianni, Cyrille ULg

in Lethaia (2007), 40(4), 393-393

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See detailCriminologie du crime en col blanc: le centenaire d'un quinquagénaire
Dantinne, Michaël ULg

in Bosly, Henri; Demanet, Georges; Bernard, Michel (Eds.) et al Cent ans de publication de droit pénal et de criminologie: le centenaire de la revue de droit pénal et de criminologie (2007)

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See detailInternet Topology Discovery: a Survey
Donnet, Benoît ULg; Friedman, Timur

in IEEE Communications Surveys and Tutorials (2007), 9(4), 2-15

Since the beginning of the nineties, the internet has undergone impres- sive growth. This growth can be appreciated in terms of the equipment, such as routers and links, that has been added, as well as in ... [more ▼]

Since the beginning of the nineties, the internet has undergone impres- sive growth. This growth can be appreciated in terms of the equipment, such as routers and links, that has been added, as well as in the numbers of users and the value of commerce that it supports. In parallel to this expansion, over the past decade the networking research community has shown a growing interest in discovering and analyzing the internet topology. Some researchers have developed tools for gathering network topology data while others have tried to understand and model the internet’s properties. These efforts have brought us to a crucial juncture for toplogy measurement infrastructures: while, previously, these were both small (in terms of number of measurement points) and monolithic, we are starting to see the deployment of large-scale distributed systems composed of hundreds or thousands of monitors. As we look forward to this next generation of systems, we take stock of what has been achieved so far. In this survey, we discuss past and current mechanisms for discovering the internet topology at various levels: the IP interface, the router, the AS, and the PoP level. In addition to discovery techniques, we provide insights into some of the well- known properties of the internet topology. [less ▲]

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See detailAlternating Spatial Patterns for Coordinated Group Motion
Swain, Daniel T.; Leonard, Naomi Ehrich; Couzin, Iain D. et al

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

Abstract—Motivated by recent observations of fish schools, we study coordinated group motion for individuals with oscillatory speed. Neighbors that have speed oscillations with common frequency, amplitude ... [more ▼]

Abstract—Motivated by recent observations of fish schools, we study coordinated group motion for individuals with oscillatory speed. Neighbors that have speed oscillations with common frequency, amplitude and average but different phases, move together in alternating spatial patterns, taking turns being towards the front, sides and back of the group. We propose a model and control laws to investigate the connections between these spatial dynamics, communication when sensing is range or direction limited, and convergence of coordinated group motions. [less ▲]

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See detailApproche territoriale du capital social : recherche qualitative sur un terrain d’application d’une politique visant au redéveloppement d’un quartier par la stimulation du capital social
Italiano, Patrick ULg

Report (2007)

Le rapport analyse, sous l'angle du développement du capital social, une expérience de redéveloppement d'un quartier de Seraing affecté par la désindustrialisation. Il s'appuie sur l'analyse des ... [more ▼]

Le rapport analyse, sous l'angle du développement du capital social, une expérience de redéveloppement d'un quartier de Seraing affecté par la désindustrialisation. Il s'appuie sur l'analyse des dynamiques du travail social, des ressources du quartier, de la participation citoyenne. Il utilise également les résultats d'une enquête menée auprès des habitants du quartier. [less ▲]

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See detailRising Sea Levels threatens the Nile Delta
Attia, Shady ULg

in 'scape : The International Magazine of Landscape Architecture and Urbanism (2007), 2

Like many other deltas, Egypt is particularly vulnerable to the effects of global warming. A relative rise in sea-level of 1 m would submerge much of the delta region within 30 km of the coast during the ... [more ▼]

Like many other deltas, Egypt is particularly vulnerable to the effects of global warming. A relative rise in sea-level of 1 m would submerge much of the delta region within 30 km of the coast during the next 100 years. Rising sea levels would have significant long-term impacts on physical, biological and socio-economic conditions of the Nile Delta. These include the damage and destruction of buildings near beaches, erosion of beaches, salt-water intrusion, and flooding more than 1,200 km2 of Egypt’s Delta Coastline. [less ▲]

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See detailOn the Construction of WiMAX Mesh Tree
Nahle, Salim; Iannone, Luigi,; Donnet, Benoît ULg et al

in IEEE Communications Letters (2007), 11(12),

The IEEE 802.16 protocol, also known as WiMAX, has been designed to support long-range communications with high bitrates, using two operation modes: Point-to-Multi-Point (PMP) and Mesh. In the mesh mode ... [more ▼]

The IEEE 802.16 protocol, also known as WiMAX, has been designed to support long-range communications with high bitrates, using two operation modes: Point-to-Multi-Point (PMP) and Mesh. In the mesh mode, Subscriber Stations (SSs) can directly communicate with each other, thus forming a tree, and can be used to forward other's data packets in a multi-hop fashion. On the contrary, in the PMP mode only one hop communication toward the Base Station (BS) is allowed. In this paper, we investigate the performance of the mesh mode by proposing an algorithm for constructing the WiMAX mesh tree. Our algorithm increases routes' effective throughput by splitting long links into multiple shorter ones. We show through simulations that this approach leads to improving the throughput capacity of WiMAX-based wireless mesh networks. [less ▲]

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See detailConsensus under general convexity
tuna, S. E.; Sepulchre, Rodolphe ULg

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

A method is proposed to characterize contraction of a set through orthogonal projections. For discrete-time multi-agent systems, quantitative estimates of convergence (to a consensus) rate are provided by ... [more ▼]

A method is proposed to characterize contraction of a set through orthogonal projections. For discrete-time multi-agent systems, quantitative estimates of convergence (to a consensus) rate are provided by means of contracting convex sets. Required convexity for the sets that should include the values that the transition maps of agents take is considered in a more general sense than that of Euclidean geometry. [less ▲]

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See detailOutils pour le diagnostic et la remédiation des difficultés d'acquisition de la lecture en 1re et 2e années du primaire
Deum, Mélanie ULg; Gabelica, Catherine; Lafontaine, Annette ULg et al

Report (2007)

L’apprentissage de la lecture constitue une étape importante pour les enfants; certains d’entre eux l’attendent avec impatience, d’autres le redoutent. La lecture est en effet un processus complexe, on le ... [more ▼]

L’apprentissage de la lecture constitue une étape importante pour les enfants; certains d’entre eux l’attendent avec impatience, d’autres le redoutent. La lecture est en effet un processus complexe, on le sait: l’apprenti lecteur doit apprendre à maîtriser différentes stratégies mais aussi à les coordonner. Les obstacles peuvent donc se situer à différents niveaux et les difficultés peuvent s’ancrer très tôt dans la scolarité, d’autant que les élèves ne sont pas tous égaux lorsqu’ils débutent dans l’apprentissage de la lecture-écriture. Laisser passer l’occasion d’identifier les forces sur lesquelles on pourra s’appuyer, ou les points faibles pour y réagir de manière adéquate dès les étapes initiales de l’apprentissage peut être lourd de conséquences: les difficultés s’accumulent et augurent d’un parcours d’échecs qui peut brouiller les élèves précocement et parfois définitivement avec la lecture, faute d’un diagnostic et d’une remédiation mise en place en temps utile. On connaît toute l’importance de la lecture dans les autres apprentissages scolaires. Même s’il est vrai qu’on apprend à lire toute sa vie, un échec dans les apprentissages de base de la lecture ne se surmonte pas facilement. Or, les outils manquent dans les écoles pour poser un diagnostic fin des difficultés auxquelles certains élèves se heurtent dès leurs premiers pas dans les apprentissages. Les enseignants se sentent démunis face à la réalisation d’un diagnostic précis: ils disent qu’ils peuvent très tôt repérer un élève qui ne suit pas ou n’accroche pas, mais ne savent pas toujours détecter précisément ce qui fait obstacle. Par ailleurs, un sentiment de malaise par rapport à la gestion des difficultés et des différences de niveaux de lecture des élèves a été mis en évidence dans une enquête1 menée auprès d’un échantillon représentatif d’un millier d’enseignants de 1re et 2e années primaires. Très peu d’enseignants estiment être bien préparés pour faire face aux difficultés en lecture et avoir bénéficié d’une formation suffisante en matière de remédiation. Au-delà d’aides plus spécialisées (par l’intervention de logopèdes, par exemple) et du soutien que certains parents peuvent donner à leur enfant, il apparaît essentiel d’apporter une aide aux enseignants responsables de l’apprentissage initial de la lecture. [less ▲]

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See detailFe-2(II)(PO4)(OH), a synthetic analogue of wolfeite
Hatert, Frédéric ULg

in Acta Crystallographica Section C-Crystal Structure Communications (2007), 63(Part 12), 119-121

This paper reports the hydrothermal synthesis and crystal structure refinement of diiron(II) phosphate hydroxide, Fe-2(II)(PO4)(OH), obtained at 1063 K and 2.5 GPa. This phosphate is the synthetic ... [more ▼]

This paper reports the hydrothermal synthesis and crystal structure refinement of diiron(II) phosphate hydroxide, Fe-2(II)(PO4)(OH), obtained at 1063 K and 2.5 GPa. This phosphate is the synthetic analogue of the mineral wolfeite, and has a crystal structure topologically identical to those of minerals of the triplite-triploidite group. The complex framework contains edge-and corner-sharing FeO4(OH) and FeO4(OH)(2) polyhedra, linked via corner-sharing to the PO4 tetrahedra (average P-O distances are between 1.537 and 1.544 angstrom). Four five-coordinated Fe sites are at the centers of distorted trigonal bipyramids (average Fe-O distances are between 2.070 and 2.105 angstrom), whereas the coordination environments of the remaining Fe sites are distorted octahedra (average Fe-O distances are between 2.146 and 2.180 angstrom). The Fe-O distances are similar to those observed in natural Mg-rich wolfeite, except for two Fe-O bond distances, which are significantly longer in synthetic Fe-2(2+) (PO4)(OH). [less ▲]

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See detailProgresse-t-on en enseignement des langues étrangères?
Defays, Jean-Marc ULg

Scientific conference (2007, December)

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See detailAn Arbitrary Lagrangian Eulerian Formulation for the Numerical Simulation of Forming Processes
Boman, Romain ULg; Papeleux, Luc ULg; Ponthot, Jean-Philippe ULg

in International Workshop 2007: Advancements in Design Optimization of Materials, Structures and Mechanical Systems (2007, December)

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See detailSpatial Models of Bistability in Biological Collectives
Paley, Derek; Leonard, Naomi; Sepulchre, Rodolphe ULg et al

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

We explore collective behavior in biological systems using a cooperative control framework. In particular, we study a hysteresis phenomenon in which a collective switches from circular to parallel motion ... [more ▼]

We explore collective behavior in biological systems using a cooperative control framework. In particular, we study a hysteresis phenomenon in which a collective switches from circular to parallel motion under slow variation of the neighborhood size in which individuals tend to align with one another. In the case that the neighborhood radius is less than the circular motion radius, both circular and parallel motion can occur. We provide Lyapunov-based analysis of bistability of circular and parallel motion in a closed-loop system of selfpropelled particles with coupled-oscillator dynamics. [less ▲]

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See detailStabilization of Collective Motion in Three Dimensions : A Consensus Approach
Scardovi, Luca; Leonard, Naomi; Sepulchre, Rodolphe ULg

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

This paper proposes a methodology to stabilize relative equilibria in a model of identical, steered particles moving in three- dimensional Euclidean space. Exploiting the Lie group structure of the ... [more ▼]

This paper proposes a methodology to stabilize relative equilibria in a model of identical, steered particles moving in three- dimensional Euclidean space. Exploiting the Lie group structure of the resulting dynamical system, the stabilization problem is reduced to a consensus problem on the Lie algebra. The resulting equilibria correspond to parallel, circular and helical formations. We rst derive the stabilizing control laws in the presence of all-to-all communication. Providing each agent with a consensus estimator, we then extend the results to a general setting that allows for unidirectional and time-varying communication topologies. [less ▲]

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See detailLa personnalité borderline: clinique d'une psychopathologie "sans limites"
Debabeche, Cécile ULg; Lebas, Maud ULg; Triffaux, Jean-Marc ULg

in Revue Médicale de Liège (2007), 62(12), 730-5

The borderline personality disorder is a common psychiatric entity, which is characterized by a varied symptomatology and a significant comorbidity. It seems that its etiologic is heterogeneous ... [more ▼]

The borderline personality disorder is a common psychiatric entity, which is characterized by a varied symptomatology and a significant comorbidity. It seems that its etiologic is heterogeneous, comprising psychosocial factors as much as biological and genetic. So the best approach of the borderline personality disorder would be a multidisciplinary bio-psycho-social one. Through a clinical case, we illustrate this disorder and its treatment in outpatient clinic. [less ▲]

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See detailPredatory boreholes in Tournaisian (Lower Carboniferous) spiriferid brachiopods
Mottequin, Bernard ULg; Sevastopulo, George

in Budd, G. E.; Streng, M.; Daley, A. C. (Eds.) et al Programme with abstracts of the 51st Palaeontological Association Annual Meeting (2007, December)

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See detailImmobilisation de la lipase de Yarrowia lipolytica.
Alloue, W. A. M.; Destain, Jacqueline ULg; El Mejdoub, Thami ULg et al

Poster (2007, December)

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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 detailQuestions de didactique des langues étrangères, du FLE (cycle de conf.)
Defays, Jean-Marc ULg

Scientific conference (2007, December)

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