29 research outputs found
Reliability and correlation analysis of computed methods to convert conventional 2D radiological hindfoot measurements to 3D equivalents using weight bearing CT
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The Copernicus Marine Environment Monitoring Service Ocean State Report
The Copernicus Marine Environment Monitoring Service (CMEMS) Ocean State Report (OSR) provides an annual report of the state of the global ocean and European regional seas for policy and decision-makers with the additional aim of increasing general public awareness about the status of, and changes in, the marine environment. The CMEMS OSR draws on expert analysis and provides a 3-D view (through reanalysis systems), a view from above (through remote-sensing data) and a direct view of the interior (through in situ measurements) of the global ocean and the European regional seas. The report is based on the unique CMEMS monitoring capabilities of the blue (hydrography, currents), white (sea ice) and green (e.g. Chlorophyll) marine environment. This first issue of the CMEMS OSR provides guidance on Essential Variables, large-scale changes and specific events related to the physical ocean state over the period 1993â2015. Principal findings of this first CMEMS OSR show a significant increase in global and regional sea levels, thermosteric expansion, ocean heat content, sea surface temperature and Antarctic sea ice extent and conversely a decrease in Arctic sea ice extent during the 1993â2015 period. During the year 2015 exceptionally strong large-scale changes were monitored such as, for example, a strong El Niño Southern Oscillation, a high frequency of extreme storms and sea level events in specific regions in addition to areas of high sea level and harmful algae blooms. At the same time, some areas in the Arctic Ocean experienced exceptionally low sea ice extent and temperatures below average were observed in the North Atlantic Ocean
Mobilise-D insights to estimate real-world walking speed in multiple conditions with a wearable device
This study aimed to validate a wearable deviceâs walking speed estimation pipeline, considering complexity, speed, and walking bout duration. The goal was to provide recommendations on the use of wearable devices for real-world mobility analysis. Participants with Parkinsonâs Disease, Multiple Sclerosis, Proximal Femoral Fracture, Chronic Obstructive Pulmonary Disease, Congestive Heart Failure, and healthy older adults (nâ=â97) were monitored in the laboratory and the real-world (2.5 h), using a lower back wearable device. Two walking speed estimation pipelines were validated across 4408/1298 (2.5 h/laboratory) detected walking bouts, compared to 4620/1365 bouts detected by a multi-sensor reference system. In the laboratory, the mean absolute error (MAE) and mean relative error (MRE) for walking speed estimation ranged from 0.06 to 0.12 m/s and ââ2.1 to 14.4%, with ICCs (Intraclass correlation coefficients) between good (0.79) and excellent (0.91). Real-world MAE ranged from 0.09 to 0.13, MARE from 1.3 to 22.7%, with ICCs indicating moderate (0.57) to good (0.88) agreement. Lower errors were observed for cohorts without major gait impairments, less complex tasks, and longer walking bouts. The analytical pipelines demonstrated moderate to good accuracy in estimating walking speed. Accuracy depended on confounding factors, emphasizing the need for robust technical validation before clinical application.
Trial registration: ISRCTN â 12246987
Somnolence : importance et pertinence de son évaluation dans une population se plaignant de troubles du sommeil
Les effets de confinement SARS-CoV-2 sur le sommeil : enquĂȘte en ligne au cours de la quatriĂšme semaine de confinement
International audienc
Optimisation du parcours de soins sommeil : identification des critÚres pour prioriser la prise en charge des patients
Lâutilisation du rayonnement synchrotron en France
Le Laboratoire L. U. R. E., prĂ©sentant la structure dâun service commun au C. N. R. S. et Ă lâUniversitĂ© Paris-Sud, a Ă©tĂ© crĂ©Ă© pour permettre V utilisation du rayonnement synchrotron Ă©mis par les anneaux de stockage dâĂ©lectrons dâOrsay (ACO et DCI). On donne les caractĂ©ristiques de lâĂ©mission synchrotron de ces anneaux et lâintĂ©rĂȘt prĂ©sentĂ© par lâutilisation de ce rayonnement dans de multiples domaines est rappelĂ©. Lâinfrastructure technique permettant lâextraction, la rĂ©partition et lâutilisation de la lumiĂšre Ă©mise par ACO est dĂ©crite, ainsi que les diffĂ©rents montages et expĂ©riences dĂ©jĂ rĂ©alisĂ©s. Les projets dâimplantation sur DCI, actuellement en cours de construction, sont exposĂ©s. Les perspectives scientifiques ouvertes par lâutilisation des deux anneaux sont Ă©voquĂ©es ; lâĂ©tat des expĂ©riences en cours dâĂ©tude ou de rĂ©alisation est dressĂ©. On indique enfin les modalitĂ©s dâaccueil et de travail Ă L. U. R. E