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Comprendre le comportement de la phase liquide du tendon sous la contrainte est un prérequis pour aborder sa mécanobiologie liée aux flux d’eau. Expérimentalement (en particulier, grâce aux études de la résonance magnétique nucléaire [RMN]), on constate que les caractéristiques de la viscoélasticité tendineuse sont conditionnées par la teneur en eau et que les modifications géométriques tissulaires...
BabelMeSH est une interface de recherche multilingue pour Medline/PubMed développée à l’intention des utilisateurs non anglophones. Le but de ce travail était d’évaluer l’efficacité de la version française. Cette étude a consisté essentiellement en deux parties : (1) l’évaluation de la qualité de la traduction des mots-clés français par BabelMeSH, (2) l’appréciation des utilisateurs. Deux groupes...
Le recours à la télémédecine est de plus en plus courant, laquelle fait très souvent appel à la compression du signal médical. Dans ce travail, nous proposons une technique de compression des signaux ECG en utilisant des transformations polynomiales. Les algorithmes développés ont été testés grâce à la base des signaux du Massachussets Institute of Technology. Les résultats ont été comparés à ceux...
Various factors in addition to normal aging are reported to be associated with spinal osteoarthritis. The links between the risk factors and osteoarthritis are unclear. This study proposes an analysis of factors associated with spinal osteoarthritis using a collection of cervical and lumbar X-ray images, maintained by the US National Library of Medicine. Five hundred and forty-eight images of adults...
We study pointwise Hölder exponents of experimental and numerically simulated skin laser Doppler flowmetry (LDF) data that give a peripheral view of the cardiovascular system. The experimental signals are recorded in the forearm of young healthy subjects. The numerically simulated LDF data are computed from a model containing six nonlinear coupled oscillators reflecting six almost periodic rhythmic...
According to the inter-individual variability of bone mechanical properties, subject-specific evaluation of the cancellous bone Young's modulus is needed to build finite-element models predicting vertebral strength with accuracy. Relationships based on the density assessed by quantitative computed tomography were proposed. However, quantitative computed tomography is not always suited for the analysis...
This paper introduces the use of a method based on wavelet transform to detect the correlation between two uterine electrical activity bursts, recorded at different places on the pregnant abdomen during the same uterine contraction. The method used in this work is called wavelet coherence. The results of this study show that the wavelet analysis can successfully detect and quantify the temporal and...
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