3,196 research outputs found

    Detection of Change--Points in the Spectral Density. With Applications to ECG Data

    Get PDF
    We propose a new method for estimating the change-points of heart rate in the orthosympathetic and parasympathetic bands, based on the wavelet transform in the complex domain and the study of the change-points in the moments of the modulus of these wavelet transforms. We observe change-points in the distribution for both bands.Comment: proceeding of the workshop 'Fouille de donn\'ees temporelles et analyse de flux de donn\'ees' EGC'2009, january 27, Strasbourg, Franc

    Oxymoron, a Non-Distance Knowledge Sharing Tool for Social Science Students and Researchers

    Get PDF
    Oxymoron is a World Wide Web based knowledge capitalization and sharing tool that was conceived and developed by a multidisciplinary team, comprised of adult education and distributed systems professionals from France and Switzerland. Oxymorons aim is to support and facilitate the work of students and researchers in social science by providing them with a system where they can contribute and obtain knowledge about the relevant readings in their fields of interest

    Modeling an Emergency Service System for a Hospital Network

    Get PDF
    In this paper we describe a service modeling project done at an IT department that provides IT services to a network of state owned healthcare providers in the state of Vaud in Switzerland. The goal of the project is to un- derstand how to maintain business continuity in the case of a disaster affecting the IT department’s data center. We analyze how to precisely relate the business requirements to the IT operation requirements with the help of the SEAM En- terprise Architecture method. The results are refined service levels and the iden- tification of the required technical architecture

    Influence of a temporary restriction of dietary protein in prepubertal ewe lambs on first lactation milk traits and response to a mammary gland inflammatory challenge

    Get PDF
    [EN] This study evaluated the influence of a temporary nutritional protein restriction (NPR) performed, under commercial conditions, in prepubertal female lambs on first lactation milk production traits and the inflammatory response triggered by an inflammatory challenge of the. From 40 Assaf female lambs, we defined a control group (C n = 20), which received a standard diet for replacement lambs and the NPR group (n = 20), which received the same diet but without soybean meal between 3 and 5 months of age. About 150 days after lambing, 24 of these ewes (13 NPR, 11C) were subjected to an intramammary infusion of E. coli lipopolysaccharide (LPS). Our dynamic study identified indicator traits of local (SCC) and systemic (rectal Ta, IL-6, CXCL8, IL-10, IL-36RA, VEGF-A) response to the LPS challenge. The NPR did not show significant effects on milk production traits and did not affect the SCC and rectal Ta after the LPS challenge. However, the NPR had a significant influence on 8 of the 14 plasma biomarkers analysed, in all the cases with higher relative values in the C group. The effects observed on VEGF-A (involved in vasculogenesis during mammary gland development and vascular permeability) and IL-10 (a regulatory cytokine classically known by its anti-inflammatory action) are the most remarkable to explain the differences found between groups. Whereas further studies should be undertaken to confirm these results, our findings are of interest considering the current concern about the future world's demand for protein and the need for animal production systems to evolve toward sustainability.S
    • …
    corecore