A5010730484- Rare-earth and actinide compounds
- Magnetic Properties of Alloys
- Magnetic properties of thin films
- Muon and positron interactions and applications
- Crystallography and Radiation Phenomena
- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
- Magnetism in coordination complexes
- High-pressure geophysics and materials
- Iron oxide chemistry and applications
- Influenza Virus Research Studies
- Mosquito-borne diseases and control
- Magnetic Properties and Synthesis of Ferrites
- Iron-based superconductors research
- Inorganic Chemistry and Materials
- Theoretical and Computational Physics
- Multiferroics and related materials
- Advanced NMR Techniques and Applications
- Geomagnetism and Paleomagnetism Studies
- Respiratory viral infections research
- Data-Driven Disease Surveillance
- Crystal Structures and Properties
- Malaria Research and Control
- Metallic Glasses and Amorphous Alloys
- Superconducting Materials and Applications
Santé Publique France
2016-2024
Institut thématique Santé Publique
2016-2024
Institut de Veille Sanitaire
2011-2014
Institut Pasteur de la Guadeloupe
2012
Laboratoire Saint Martin
2010
CEA Grenoble
1981-1994
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
1994
Technical University of Munich
1988
Uppsala University
1986
Direction de la Recherche Fondamentale
1979-1985
ABSTRACT In September 2023, France was one of the first countries that started a national immunisation campaign with nirsevimab, new monoclonal antibody against respiratory syncytial virus (RSV). Using data from network paediatric intensive care units (PICUs), we aimed to estimate nirsevimab effectiveness severe cases RSV bronchiolitis in France. We conducted case–control study based on test‐negative design and included 288 infants reported by 20 PICUs. estimated at 75.9% (48.5–88.7) main...
$^{161}\mathrm{Dy}$ M\"ossbauer spectra show that the dysprosium moments in amorphous Dy${\mathrm{Co}}_{3.4}$ are strongly coupled to local crystal field axes. The magnetic structure is one which cobalt "sublattice" ferromagnetic, and almost randomly distributed directions between antiparallel perpendicular cobalt.
For pt.I see ibid., vol.11, no.12, p.2727 (1981). Mossbauer data are presented for eight Y1-xFex alloys with 0.32<or=x<or=0.88 in the temperature range 1.5-300K. In some cases external magnetic fields of up to 140 kOe were applied. Iron x=0.32 sample has essentially no moment. Magnetism zero field appears near x=0.4 and fraction non-magnetic iron corresponds possessing seven or more yttrium neighbours. The moment increases number neighbours beyond six. An ordered state a random non-collinear...
In orthorhombic CrRO3 (R=rare earth and Y), Cr spins are ordered in a G mode between TN 282°K for R=La, to 112°K R=Lu. The rare-earth ordering is coupled the Cr-spin ordering, with exception of terbium. magnetoelectric compound Fe1.15Ga0.85O3, four sites available cations, one these mainly occupied by Ga. Neutron-diffraction magnetic-susceptibility measurements give evidence ferrimagnetic ordering. Tetragonal FeS shows no magnetic neutron diffraction Mössbauer effect down 1.7°K. CrS-MnS...
M\"ossbauer-effect measurements in external magnetic fields show that the structure of ferrimagnetic Ni${\mathrm{Fe}}_{2}$${\mathrm{O}}_{4}$ is collinear N\'eel type. Ni${\mathrm{Fe}}_{0.3}$${\mathrm{Cr}}_{1.7}$${\mathrm{O}}_{4}$ shown to have a triangular with ${\ensuremath{\theta}}_{A}=20\ifmmode\pm\else\textpm\fi{}10\ifmmode^\circ\else\textdegree\fi{}$ and ${\ensuremath{\theta}}_{B}=50\ifmmode\pm\else\textpm\fi{}4\ifmmode^\circ\else\textdegree\fi{}$.
During the summer of 2014, all pre-requisites for autochthonous transmission chikungunya virus are present in southern France: a competent vector, Aedes albopictus, and large number travellers returning from French Caribbean islands where an outbreak is occurring. We describe system implemented surveillance dengue mainland France. From 2 May to 4 July there were 126 laboratory-confirmed imported cases
During the 2009/10 pandemic, a national surveillance system for severe influenza cases was set up in France. We present results from system's first four years. All admitted to intensive care units (ICU) were reported Institut de Veille Sanitaire using standardised form: data on demographics, immunisation and virological status, risk factors, severity (e.g. acute respiratory distress syndrome (ARDS) onset, mechanical ventilation, extracorporeal life support) outcome. Multivariate analysis...
The authors have studied magnetic fluctuations in the paramagnetic phase of rare-earth-aluminium intermetallics type (RE)Al2 by method transverse-field muon spin rotation ( mu SR). In case with strong 4f exchange they could observe a increase damping SR signal on approaching Curie point Tc. One important contribution to increased rate is slowing down attributed formation correlations which are observed persist far above crystallographic site for + discussed as well hyperfine field induced at...
The M\"ossbauer spectra of cobalt-57-doped magnesium oxide have been studied between 1.3 and 550\ifmmode^\circ\else\textdegree\fi{}K in external magnetic fields up to 135 kOe for both single-crystal polycrystalline samples. At room temperature zero field, the velocity spectrum is composed three single lines, attributed monovalent, divalent, trivalent iron. In certain samples, $T<14$\ifmmode^\circ\else\textdegree\fi{}K, ${\mathrm{Fe}}^{2+}$ line undergoes a transition quadrupole doublet...
La transformation de phase P3m1 ~ P21/C se manifeste dans les fluosilicates Fe, Mg, Mn par phénomènes suivants : (a) Apparition d'une asymétrie du gradient champ électrique, que l'on a mesurée le fluosilicate magnesium, monocristallin, en présence d'un magnétique 120 kOe.(b) Variation brutale la dissymétrie des spectres quadrupolaires poudres. (c) Absence singularité pour l'écartement doublet quadrupolaire (sauf cas manganèse).La permis d'observer transitions à l'aide poudres.L'application...
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