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L’adéquation des systèmes juridiques des États membres à l’appartenance à l’Union européenne,
No full textColloque Jean Monnet de Caen en cours de pbilicationInternational audienceL’analyse de l’adéquation à l’Union européenne des systèmes juridiques des États membres – et spécialement de leurs constitutions – est un des volets essentiels de l’étude de leur statut. Elle permet de mesurer le degré de leur adéquation ou éventuellement de leur inadéquation. Elle implique l’examen des modalités nécessairement diverses de leurs adaptations. L’étude des situations nationales est centrée sur trois volets capitaux : les bases des transferts de compétences ; la primauté du droit de l’Union européenne ; son effet direct
Local topological algebraicity of analytic function germs
Get PDFInternational audienceT. Mostowski showed that every (real or complex) germ of an analytic set is homeomorphic to the germ of an algebraic set. In this paper we show that every (real or complex) analytic function germ, defined on a possibly singular analytic space, is topologically equivalent to a polynomial function germ defined on an affine algebraic variety
Firm age and performance
No full textInternational audienceAmid increasing interest in firm age and its effects on firm performance, this special issue offers an exhaustive review of the literature and a novel collection of evidence on the effects of firm age on performance, including a special focus of interest on innovation performance, financial performance, exports, survival and growth. This editorial positions the theme in the extant literature, and provides key definitions and challenges ahead in the field of evolutionary economics. It introduces the collection of articles composing the special issue. The papers offer a diversity of country contexts, as well as analytical approaches and methods. They include an exhaustive review of the literature on age and firms’ performance, and present original empirical studies focusing on the effects of age on firms’ economic outcomes on the one hand, and on innovation outcomes on the other hand. While most of the papers use econometric analysis, the level of analysis ranges from firm to individual
Repeated Effects of Vigorous Interval Training in Basketball, Running-Biking, and Boxing on the Physical Self-Perceptions of Obese Adolescents
No full textInternational audienceThis study aims to examine the repeated effects of three sessions of vigorous interval training (VIT) in basketball, running-biking, and boxing on the physical self-perceptions (PSP) of obese adolescents participating in a dietary program. A sample of 24 obese adolescents performed the consecutive VIT sessions every week for 5 weeks. PSP were measured immediately after each training session. Analyses of covariance were used to examine changes in PSP. The results showed rapid and constant increases in PSP with significant differences according to sex, time, type of VIT, and an interaction of sex by time by type of VIT, mainly for basketball
An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
No full textInternational audienceOn 2017 August 17 at 12:41:06 UTC the Fermi Gamma-ray Burst Monitor (GBM) detected and triggered on the short gamma-ray burst (GRB) 170817A. Approximately 1.7 s prior to this GRB, the Laser Interferometer Gravitational-wave Observatory triggered on a binary compact merger candidate associated with the GRB. This is the first unambiguous coincident observation of gravitational waves and electromagnetic radiation from a single astrophysical source and marks the start of gravitational-wave multi-messenger astronomy. We report the GBM observations and analysis of this ordinary short GRB, which extraordinarily confirms that at least some short GRBs are produced by binary compact mergers
First all-flavor neutrino pointlike source search with the ANTARES neutrino telescope
No full textInternational audienceA search for cosmic neutrino sources using the data collected with the ANTARES neutrino telescope between early 2007 and the end of 2015 is performed. For the first time, all neutrino interactions—charged- and neutral-current interactions of all flavors—are considered in a search for point-like sources with the ANTARES detector. In previous analyses, only muon neutrino charged-current interactions were used. This is achieved by using a novel reconstruction algorithm for shower-like events in addition to the standard muon track reconstruction. The shower channel contributes about 23% of all signal events for an E-2 energy spectrum. No significant excess over background is found. The most signal-like cluster of events is located at (α,δ)=(343.8°,23.5°) with a significance of 1.9σ. The neutrino flux sensitivity of the search is about E2dΦ/dE=6×10-9 GeV cm-2 s-1 for declinations from -90° up to -42°, and below 10-8 GeV cm-2 s-1 for declinations up to 5°. The directions of 106 source candidates and 13 muon track events from the IceCube high-energy sample events are investigated for a possible neutrino signal and upper limits on the signal flux are determined
Mapping the hot gas temperature in galaxy clusters using X-ray and Sunyaev-Zel'dovich imaging
No full textInternational audienceWe propose a method to map the temperature distribution of the hot gas in galaxy clusters that uses resolved images of the thermal Sunyaev-Zel'dovich (tSZ) effect in combination with X-ray data. Application to images from the New IRAM KIDs Array (NIKA) and XMM-Newton allows us to measure and determine the spatial distribution of the gas temperature in the merging cluster MACS J0717.5+3745, at . Despite the complexity of the target object, we find a good morphological agreement between the temperature maps derived from X-ray spectroscopy only -- using XMM-Newton () and Chandra () -- and the new gas-mass-weighted tSZ+X-ray imaging method (). We correlate the temperatures from tSZ+X-ray imaging and those from X-ray spectroscopy alone and find that is higher than and lower than by in both cases. Our results are limited by uncertainties in the geometry of the cluster gas, contamination from kinetic SZ (), and the absolute calibration of the tSZ map (). Investigation using a larger sample of clusters would help minimise these effects
Upper Limits on Gravitational Waves from Scorpius X-1 from a Model-Based Cross-Correlation Search in Advanced LIGO Data
No full textInternational audienceWe present the results of a semicoherent search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1, using data from the first Advanced LIGO observing run. The search method uses details of the modeled, parametrized continuous signal to combine coherently data separated by less than a specified coherence time, which can be adjusted to trade off sensitivity against computational cost. A search was conducted over the frequency range 25–, spanning the current observationally constrained range of binary orbital parameters. No significant detection candidates were found, and frequency-dependent upper limits were set using a combination of sensitivity estimates and simulated signal injections. The most stringent upper limit was set at , with comparable limits set across the most sensitive frequency range from 100 to . At this frequency, the 95% upper limit on the signal amplitude h (0) is marginalized over the unknown inclination angle of the neutron star’s spin, and assuming the best orientation (which results in circularly polarized gravitational waves). These limits are a factor of 3–4 stronger than those set by other analyses of the same data, and a factor of ∼7 stronger than the best upper limits set using data from Initial LIGO science runs. In the vicinity of , the limits are a factor of between 1.2 and 3.5 above the predictions of the torque balance model, depending on the inclination angle, if the most likely inclination angle of 44° is assumed, they are within a factor of 1.7
Low-profile horizontal omnidirectional antenna for LoRa wearable devices
No full textInternational audienceIn this paper, a novel antenna suitable for wearable LoRa devices is introduced. Its size is just 42.5 x 45 mm2, similarto the size of a watch, thanks to the advantage of a wire-patch antenna structure. The proposed antenna operates at 868MHzfrequency band with the realized gain up to 0.4 dBi. This antenna is proved to be better than former designs by obtaining azimuthal polarization which reduces effects from human body. In addition, its polarization is circular, thus loss from polarization mismatch is expected to be minimized
Normative Requirements as Linked Data
No full textInternational audienceIn this paper, we propose a proof of concept for the ontological representation of normative requirements as Linked Data on the Web. Starting from the LegalRuleML ontology, we present an extension of this ontology to model normative requirements and rules. Furthermore, we define an operational formalization of the deontic reasoning over these concepts on top of the Semantic Web languages