Path Similarity Evaluation using Bloom Filters

in Computer Networks (2012), 56(2), 858-869

The performance of several Internet applications often relies on the measurability of path similarity between different participants. In particular, the performance of content distribution networks mainly ... [more ▼]

The performance of several Internet applications often relies on the measurability of path similarity between different participants. In particular, the performance of content distribution networks mainly relies on the awareness of content sources topology information. It is commonly admitted nowadays that, in order to ensure either path redundancy or efficient content replication, topological similarities between sources is evaluated by exchanging raw traceroute data, and by a hop by hop comparison of the IP topology observed from the sources to the several hundred or thousands of destinations. In this paper, based on real data we collected, we advocate that path similarity comparisons between different Internet entities can be much simplified using lossy coding techniques, such as Bloom filters, to exchange compressed topology information. The technique we introduce to evaluate path similarity enforces both scalability and data confidentiality while maintaining a high level of accuracy. In addition, we demonstrate that our technique is scalable as it requires a small amount of active probing and is not targets dependent. [less ▲]

Evolution et systématique du genre Pinus

in Annales de la Société Belge de Dendrologie = Jaarboek van de Belgische Dendrologische Vereniging (2012), 2010

An association between short-term memory for order and numerical cognition in 3rd grade kindergarten children.

Conference (2012, February)

Several studies explored the relationship between verbal short-term memory (STM) and numerical cognition, but with inconclusive findings. The present study re-explored this relationship, by adopting the ... [more ▼]

Several studies explored the relationship between verbal short-term memory (STM) and numerical cognition, but with inconclusive findings. The present study re-explored this relationship, by adopting the critical distinction between STM for item information (the items to be retained) and STM for order information (the order of the items within a list). We hypothesized that especially STM for order should be related to the development of numerical abilities, given that recent studies suggest the intervention of common processes during the representation of order information in STM and numerical tasks. We investigated item and order STM abilities and numerical processing abilities in 72 children during their third year in kindergarten. We observed that order STM abilities, but not item STM abilities, correlated significantly with performance on numerical order judgment and calculation tasks. These associations remained after control of interindividual differences in verbal and non-verbal cognitive efficiency. Our results suggest a specific relationship between order STM processes and numerical cognition, opening new perspectives for our understanding of the STM determinants of numerical cognition development. [less ▲]

Two-dimensional and M-mode echocardiographic reference values in healthy adult Saanen goats

in Veterinary Record : Journal of the British Veterinary Association (2012), 170(6), 154

Echocardiography has become a routine non invasive cardiac diagnostic tool in most species. Accurate measurement of cardiac dimensions requires reference values, which are poorly documented in goats. The ... [more ▼]

Echocardiography has become a routine non invasive cardiac diagnostic tool in most species. Accurate measurement of cardiac dimensions requires reference values, which are poorly documented in goats. The aim of this study was to test the inter-day repeatability and to establish the reference values of two-dimensional (2D-) and time-motion (M-) mode echocardiographic variables in healthy adult Saanen goats. Six goats were investigated three times by the same observer at one day interval using a standardized 2D- and M-mode echocardiographic protocol. The intra-observer inter-day repeatability was tested using analysis of variance, calculation of the coefficient of variation and confidence intervals. A single echocardiographic examination was performed in 6 other goats, and values obtained in the 12 goats were used to establish the 2D- and M-mode echocardiographic reference values in healthy adult female Saanen goats. Statistical analysis revealed a good inter-day repeatability of the echocardiographic cardiac measurements. Echocardiographic reference values obtained in healthy adult Saanen goats seemed slightly higher than those reported in healthy Swedish domestic goats and were similar to those reported in healthy adult sheep. [less ▲]

Du bon usage des catastrophes, de Régis Debray

in Revue Nouvelle (2012), 66(2), 74-77

Apport des troponines T et I ultrasensibles dans le diabète

in Immuno-Analyse & Biologie Spécialisée [=IBS] (2012, February), 27(1), 40

Introduction : Le diabète atteint environ 3% de la population française. Or, cette maladie expose à l'apparition précoce de complications cardiovasculaires. Les troponines de nouvelles générations ... [more ▼]

Introduction : Le diabète atteint environ 3% de la population française. Or, cette maladie expose à l'apparition précoce de complications cardiovasculaires. Les troponines de nouvelles générations hautement sensibles pourraient être un bon outil diagnostic pour mettre en évidence des macroou micro-angiopathies non diagnostiquée chez ces patients. Le but de notre étude était de comparer la performance de la troponine T ultrasensible (hsTnT) (Roche Diagnostic) avec la troponine I ultrasensible (TnI II) (Abbott Diagnostic) chez le sujet diabétique. Matériel et méthodes : Vingt patients diabétiques (âge moyen : 52.6 ± 8.4 ans) ont été sélectionnés sur le critère d’un taux d’hémoglobine glyquée (HbA1c) élevé. Ces sujets ont été comparés à vingt sujets contrôles d’âge moyen : 60.05 ± 2.86 ans. Les patients atteints d’insuffisance rénale et d’affections cardiovasculaires ont été exclus. Les analyses ont été réalisées sur du plasma hépariné lithium. La hsTnT a été dosée par électrochemiluminescence sur le Modular E (Roche Diagnostic). Abbott utilise des microparticules chemiluminescentes pour le dosage de la TnI II sur l’ARCHITECT i. Résultats : Les sujets diabétiques ont un taux plasmatique de hsTnT représenté par les valeurs suivantes [médiane (1er quartile, 3ème quartile)] : 0,007 (0,03 ; 0,018) ng/mL ; alors que les sujets contrôles négatifs présentent les valeurs suivantes : 0,003 (0,003 ; 0,004) ng/mL. La différence de taux de hsTnT observée entre ces 2 populations est statistiquement significative (p = 0,000922). Pour la TnI II, on observe un taux plasmatique de: 0,004 (0,003 ; 0,075) ng/mL chez les sujets diabétiques et 0,002 (0,001 ; 0,005) ng/mL chez les sujets contrôles. La différence de taux de TnI II observée entre ces 2 populations n’est pas statistiquement significative (p > 0,005). Discussion-conclusion : Au décours d’un diabète, il apparait que les taux de hsTnT sont augmentés de façon significative par rapport au groupe des contrôles négatifs. Si les taux hsTnT augmentent chez le diabétique, il semblerait normal qu’il en soit de même pour la TnI II, vu que ces deux marqueurs sont intimement liés. Nous ne l’avons pas observé mais ceci peut être du à la plus faible performance analytique du dosage de la TnI II utilisé. Cette libération de hsTnT dans le sang peut être due aux micro- et macro-angiopathies au niveau des coronaires induites au cours d’un diabète. [less ▲]

Le leasing immobilier

Scientific conference (2012, February)

The Taoussa project (Mali): an example of effective composite modeling

in 4th IAHR International Symposium on Hydraulic Structures (2012, February)

Physical modeling and numerical modeling are two efficient analysis approaches in hydraulic engineering. The interactive application of both methods is obviously the more effective response to most flow ... [more ▼]

Physical modeling and numerical modeling are two efficient analysis approaches in hydraulic engineering. The interactive application of both methods is obviously the more effective response to most flow problems analyses. This paper presents the results of a successful application of such a composite numerical – physical study carried out by the Research Group Hydraulics in Environmental and Civil Engineering (former HACH) of the University of Liège on behalf of Coyne et Bellier (Tractebel Engineering). It concerned, at the stage of detailed draft, the hydraulic study of the Taoussa Project on the Niger River in Mali. The studies, performed in less than 6 months, focused on the flow characteristics at the scale of the reservoir and the river, using the numerical approach, as well as on hydrodynamic details in the spillway using a large scale factor physical model with boundary conditions defined on the basis of numerical modeling. [less ▲]

Intravenous magnesium re-establishes neuromuscular block after spontaneous recovery from an intubating dose of rocuronium: a randomised controlled trial

in European Journal of Anaesthesiology (2012), 29(2), 95-99

Just Democracy. A Radical Assessment.

Scientific conference (2012, February)

This paper is a tentative assessment of the Rawls-Machiavelli program by Philippe Van Paris, who proposes that justice is the main goal of political action (in a Rawlsian perspective) and democracy is ... [more ▼]

This paper is a tentative assessment of the Rawls-Machiavelli program by Philippe Van Paris, who proposes that justice is the main goal of political action (in a Rawlsian perspective) and democracy is only instrumental (the Machiavellian part of the program). The paper adresses three questions to the proposal of Philippe Van Paris : 1) Can democracy be properly defined without a condition of public debate ? 2) Don't "realistic politics" underestimate the margin of possibility we have to change "what people are" and 3) If people overemphasize that part of their interests which is linked to their ethno-national belonging, is it not because alternative political offer is not differentiated enough ? [less ▲]