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Artigo Acesso aberto Revisado por pares

G. Kirby, J. van Nugteren, Hugues Bajas, V. Benda, Amalia Ballarino, M. Bajko, L. Bottura, K. Broekens, M. Canale, A. Chiuchiolo, L. Gentini, N. Peray, J. C. Pérez, G. de Rijk, A. Rijllart, L. Rossi, J. Murtomaeki, J. Mazet, Francois-Olivier Pincot, Giovanni Volpini, M. Durante, Philippe Fazilleau, C. Lorin, Antti Stenvall, W. Goldacker, A. Kario, A. Usoskin,

EuCARD-2 is a project partly supported by FP7-European Commission aiming at exploring accelerator magnet technology for 20 T dipole operating field. The EuCARD-2 collaboration is liaising with similar programs for high field magnets in the USA and Japan. EuCARD-2 focuses, through the work-package 10 “Future magnets,” on the development of a 10 kA-class superconducting, high current density cable suitable for accelerator magnets, for a 5 T stand-alone dipole of 40 mm bore and about 1 m length. After ...

Tópico(s): Particle accelerators and beam dynamics

2017 - IEEE Council on Superconductivity | IEEE Transactions on Applied Superconductivity

Artigo Revisado por pares

Jean‐Yves Barnagaud, Nathan Mazet, François Munoz, Matthias Grenié, Pierre Denelle, Mar Sobral, W. Daniel Kissling, Çağan H. Şekercioğlu, Cyrille Violle,

Abstract Aim Diet is key to understanding resource use by species, their relationships with their environment and biotic interactions. We aimed to identify the major strategies that shape the diet space of birds and to investigate their spatial distributions in association with biogeographical, bioclimatic and anthropogenic drivers. Location Global. Time period Current. Major taxa studied Birds. Methods We analysed score‐based assessments of eight diet categories for 8,937 out of 10,964 extant bird ...

Tópico(s): Avian ecology and behavior

2019 - Wiley | Global Ecology and Biogeography

Artigo Revisado por pares

François‐Xavier Le Bourdonnec, Jean-Michel Bontempi, Nathalie Marini, Sylvain Mazet, Pierre François Neuville, Gérard Poupeau, Jean Sicurani,

During the Neolithic, obsidians of the Monte Arci (Sardinia) volcanic complex were by far more used in the northern Tyrrhenian area than those of the three other source-islands (Lipari, Palmarola, Pantelleria) in the western Mediterranean. It is shown that merely determinations of content for six major elements with a scanning electron microscope by energy dispersion spectrometry (SEM-EDS) are sufficient to distinguish the four types of Monte Arci obsidians. Because of the compositional similarities ...

Tópico(s): Cultural Heritage Materials Analysis

2009 - Elsevier BV | Journal of Archaeological Science

Artigo Revisado por pares

Christian Boudin, Mazet Olivier, Jean-François Molez, Jean‐Paul Chiron, P Ambroise-Thomas,

The malarial infectivity of an African village population was tested by selecting a demographically representative sample of individuals for study, regardless of parasitemia or gametocytemia. The infectivity of this population people to laboratory-bred mosquitoes was investigated using membrane feeding techniques. Tests on 322 subjects (greater than four years of age) indicated that approximately 48.4% were capable of infecting mosquitoes. There were similar proportions of infectious individuals ...

Tópico(s): Parasites and Host Interactions

1993 - American Society of Tropical Medicine and Hygiene | American Journal of Tropical Medicine and Hygiene

Artigo Revisado por pares

Pierre Mazet, François Sorin,

Dominée par la thématisation de la « fracture numérique », l’appréhension des évolutions sociotechniques liées au numérique dans le champ du travail social a laissé le rapport des professionnels aux usages numériques relativement impensé. L’accélération et la généralisation tendancielle de la dématérialisation des démarches administratives sont pourtant venues bouleverser leur contexte d’intervention. Les agents voient les limites de leur travail simultanément redéfinies par les demandes d’aide d’usagers ...

Tópico(s): Education, sociology, and vocational training

2020 - | Terminal

Artigo Acesso aberto Revisado por pares

Alexandra Richard‐Mazet, Sylvain Goutebroze, François-Xavier Le Gros, David E. Swayne, Michel Bublot,

Inactivated and fowlpox virus (FP)-vectored vaccines have been used to control H5 avian influenza (AI) in poultry. In H5 AI endemic countries, breeder flocks are vaccinated and therefore, maternally-derived antibodies (MDA) are transferred to their progeny. Results of three immunogenicity and one efficacy studies performed in birds with or without MDA indicated that the immunogenicity of an inactivated vaccine based on a H5N9 AI isolate (inH5N9) was severely impaired in chicks hatched from inH5N9-vaccinated ...

Tópico(s): Virology and Viral Diseases

2014 - BioMed Central | Veterinary Research

Artigo Revisado por pares

Adel Mesbah, B. Malaman, Thomas Mazet, Romain Sibille, Michel François,

Four samples of the solid solution (Co1−xFex)2(OH)2(C8H4O4) x = 0.25 (1), x = 0.5 (2), x = 0.75 (3); x = 0.88 (4) (C2/m) were investigated by synchrotron radiation using Multi-wavelength Anomalous Diffraction (MAD) and multipattern refinements in order to locate the two neighbour metallic elements Fe and Co. Although there is no cation ordering, the two metallic sites M1 (0, 0, 0) and M2 (0, 0.5, 0.5) are preferentially occupied by Co and Fe respectively. In this article we demonstrate that this distribution is ...

Tópico(s): Crystal Structures and Properties

2010 - Royal Society of Chemistry | CrystEngComm

Artigo Revisado por pares

Anne Carton, Adel Mesbah, Thomas Mazet, Florence Porcher, Michel François,

The structure of the new hybrid compound [Ni3(OH)2(tp)2(H2O)4]·2H2O (tp = C8H4O42−) has been determined ab initio from synchrotron powder diffraction data and refined with the Rietveld method: space group P-1, a = 10.2077(6) Å, b = 8.0135(5) Å, c = 6.3337(4) Å, α = 97.70 (1)°, β = 97.21(1)°, γ = 108.77(1)°, Dx = 2.124 g/cm3, Rp = 0.045, RB = 0.095 (757 independent reflections). H atoms were placed geometrically and their position optimized by DFT calculation. The repeating structural unit is the chain [Ni(1)O6]2Ni(2)O6, ...

Tópico(s): Magnetism in coordination complexes

2007 - Elsevier BV | Solid State Sciences

Artigo Revisado por pares

Romain Sibille, Thomas Mazet, B. Malaman, Michel François,

Magnetocaloric effect: A GdIII-based metal–organic framework (MOF) has an unprecedented large magnetocaloric effect around 2 K. It was shown to be an interesting magnetorefrigerant for ultralow-temperature applications, because it combines the advantages of molecular materials and the robustness of a framework with strong 3D chemical connections (see figure). Detailed facts of importance to specialist readers are published as "Supporting Information". Such documents are peer-reviewed, but not copy- ...

Tópico(s): Metal-Organic Frameworks: Synthesis and Applications

2012 - Wiley | Chemistry - A European Journal

Artigo Revisado por pares

Adel Mesbah, Pierre Rabu, Romain Sibille, Sébastien Lebègue∥, Thomas Mazet, B. Malaman, Michel François,

Dehydration of the hybrid compound [Ni3(OH)2(tp)2(H2O)4] (1) upon heating led to the sequential removal of coordinated water molecules to give [Ni3(OH)2(tp)2(H2O)2] (2) at T1 = 433 K and thereafter anhydrous [Ni2(OH)2(tp)] (3) at T2 = 483 K. These two successive structural transformations were thoroughly characterized by powder X-ray diffraction assisted by density functional theory calculations. The crystal structures of the two new compounds 2 and 3 were determined. It was shown that at T1 (433 K) the infinite ...

Tópico(s): Crystallography and molecular interactions

2014 - American Chemical Society | Inorganic Chemistry

Artigo Acesso aberto Revisado por pares

Romain Sibille, Emilie Didelot, Thomas Mazet, B. Malaman, Michel François,

Magnetic refrigerants incorporating Gd3+ ions and light organic ligands offer a good balance between isolation of the magnetic centers and their density. We synthesized the framework material Gd2(C2O4)3(H2O)6⋅0.6H2O by a hydrothermal route and characterized its structure. The honeycomb lattice of Gd3+ ions interlinked by oxalate ligands in the (a,c) plane ensures their decoupling in terms of magnetic exchange interactions. This is corroborated by magnetic measurements indicating negligible interactions ...

Tópico(s): Polyoxometalates: Synthesis and Applications

2014 - American Institute of Physics | APL Materials

Artigo Revisado por pares

Florence Crespin‐Mazet, Karine Goglio‐Primard, François Scheid,

Purpose – Little research focuses on the conditions under which companies open up to co-develop knowledge with external actors. Spatial proximity has been proved insufficient to generate successful open innovation processes: socio-economic proximity also seems required. This paper aims at better understanding how this new form of proximity can be organized and investigates the role of third parties or tertius iungens in this process. Design/methodology/approach – This paper is based on an exploratory ...

Tópico(s): Open Source Software Innovations

2013 - Emerald Publishing Limited | Management Decision

Artigo Acesso aberto Revisado por pares

Thomas Mazet, D. Malterre, Manuel François, C. Dallera, M. Grioni, G. Monaco,

We investigate the temperature dependence of the Yb valence in ${\mathrm{YbMn}}_{6}{\mathrm{Ge}}_{1.8}{\mathrm{Sn}}_{4.2}$ and ${\mathrm{YbMn}}_{6}{\mathrm{Ge}}_{1.6}{\mathrm{Sn}}_{4.4}$ using resonant inelastic x-ray scattering experiments. Yb is found to be in an intermediate valent state in the whole investigated temperature range (10--450 K). We thus prove that the unusually high magnetic ordering temperature of Yb ($\ensuremath{\sim}60$ and 90 K for $x=4.2$ and 4.4, respectively) involves an intermediate ...

Tópico(s): Iron-based superconductors research

2013 - American Physical Society | Physical Review Letters

Artigo Revisado por pares

Chloé E. L. Delmas, Yann Dussert, Laurent Delière, Carole Couture, Isabelle D. Mazet, Sylvie Richart‐Cervera, François Delmotte,

Adaptation produces hard or soft selective sweeps depending on the supply of adaptive genetic polymorphism. The evolution of pesticide resistance in parasites is a striking example of rapid adaptation that can shed light on selection processes. Plasmopara viticola, which causes grapevine downy mildew, forms large populations, in which resistance has rapidly evolved due to excessive fungicide use. We investigated the pathways by which fungicide resistance has evolved in this plant pathogen, to determine ...

Tópico(s): Horticultural and Viticultural Research

2017 - Wiley | Molecular Ecology

Artigo Acesso aberto

Thomas Mazet, D. Malterre, M. François, L. Eichenberger, M. Grioni, C. Dallera, G. Monaco,

We investigate the composition and temperature (10--450 K) dependence of the Yb valence in ${\mathrm{YbMn}}_{6}{\mathrm{Ge}}_{6\ensuremath{-}x}{\mathrm{Sn}}_{x}$ ($x=0.0$, 3.8, 4.2, 4.4, and 5.5) using resonant inelastic x-ray scattering (RIXS). The observed change in the Yb valence with composition (from $\ensuremath{\upsilon}\ensuremath{\sim}3$ for $x=0$ to $\ensuremath{\upsilon}\ensuremath{\sim}2.7$ for $x=5.5$) is likely driven by negative chemical pressure effects due to the Sn for Ge substitution. While ...

Tópico(s): Iron-based superconductors research

2015 - American Physical Society | Physical Review B

Artigo Revisado por pares

Michel Bublot, Alexandra Richard‐Mazet, Sandrine Chanavat-Bizzini, François-Xavier Le Gros, Michelle Duboeuf, Anna Stoll, V. Pálfi, Éric Niqueux, Olivier Guionie, Cs. N. Drén,

Fowlpox (FP)-vectored avian influenza (FP-AI) vaccines are used in 1-day-old chickens, but they have also recently been shown to be immunogenic in ducks. The objectives of this work were 1) to evaluate safety and to compare the immunogenicity in ducks of three poxvirus vectors (fowlpox, canarypox, and vaccinia) expressing the same hemagglutinin gene from an H5N1 isolate, 2) to study the effect of the dose of the FP-AI and the presence of an adjuvant in 1-day-old Pekin ducks on antibody response after ...

Tópico(s): Bacillus and Francisella bacterial research

2010 - American Association of Avian Pathologists | Avian Diseases

Artigo Acesso aberto

Q. Recour, Voraksmy Ban, Z. Gercsi, Thomas Mazet, Manuel François, B. Malaman,

We investigate the magnetic structure of Mn3-xFexSn2 using neutron powder diffraction experiments and electronic structure calculations. These alloys crystallize in the orthorhombic Ni3Sn2 type of structure (Pnma) and comprise two inequivalent sites for the transition metal atoms (4c and 8d) and two Sn sites (4c and 4c). The neutron data show that the substituting Fe atoms predominantly occupy the 4c transition metal site and carry a lower magnetic moment than Mn atoms. Four kinds of magnetic structures ...

Tópico(s): Rare-earth and actinide compounds

2013 - American Physical Society | Physical Review B

Artigo Revisado por pares

Mieke Steensels, Michel Bublot, Steven Van Borm, J. De Vriese, Bénédicte Lambrecht, Alexandra Richard‐Mazet, Sandrine Chanavat-Bizzini, Michelle Duboeuf, François Gros, Thomas Berg,

The efficacy of different vaccination schedules was evaluated in 17-day-old Pekin ducks using an experimental inactivated whole virus vaccine based on the H5N9 A/chicken/Italy/22A/98 isolate (H5N9-It) and/or a fowlpox recombinant (vFP-H5) expressing a synthetic HA gene from an Asian H5N1 isolate (A/chicken/Indonesia/7/2003). Full protection against clinical signs and shedding was induced by the different vaccination schemes. However, the broadest antibody response and the lowest antibody increase after ...

Tópico(s): Animal Virus Infections Studies

2008 - Elsevier BV | Vaccine

Artigo Revisado por pares

Romain Sibille, Thomas Mazet, B. Malaman, Thomas Gaudisson, Michel François,

Reported here are the synthesis and structural and topological analysis as well as a magnetic investigation of the new Co4(OH)2(C10H16O4)3 metal–organic framework. The structural analysis reveals a one-dimensional inorganic subnetwork based on complex chains of cobalt(II) ions in two different oxygen environments. Long alkane dioic acid molecules bridge these inorganic chains together to afford large distances and poor magnetic media between dense spin chains. The thermal dependence of the χT product ...

Tópico(s): Lanthanide and Transition Metal Complexes

2012 - American Chemical Society | Inorganic Chemistry

Artigo Acesso aberto Revisado por pares

Chloé E. L. Delmas, Frédéric Fabre, J. Jolivet, Isabelle D. Mazet, Sylvie Richart‐Cervera, Laurent Delière, François Delmotte,

An understanding of the evolution of pathogen quantitative traits in response to host selective pressures is essential for the development of durable management strategies for resistant crops. However, we still lack experimental data on the effects of partial host resistance on multiple phenotypic traits (aggressiveness) and evolutionary strategies in pathogens. We performed a cross-inoculation experiment with four grapevine hosts and 103 isolates of grapevine downy mildew (Plasmopara viticola) sampled ...

Tópico(s): Plant Virus Research Studies

2016 - Wiley | Evolutionary Applications

Artigo Revisado por pares

Chloé E. L. Delmas, Isabelle D. Mazet, J. Jolivet, Laurent Delière, François Delmotte,

Quantitative pathogenicity traits drive the fitness and dynamics of pathogens in agricultural ecosystems and are key determinants of the correct management of crop production over time. However, traits relating to infection potential (i.e. zoospore production) have been less thoroughly investigated in oomycetes than traits relating to dispersal (i.e. sporangium production). We simultaneously quantified sporangium and zoospore production in a biotrophic oomycete, for the joint assessment of life-cycle ...

Tópico(s): Plant Pathogens and Fungal Diseases

2014 - Elsevier BV | Journal of Microbiological Methods

Artigo Revisado por pares

Romain Sibille, Adel Mesbah, Thomas Mazet, B. Malaman, Silvia C. Capelli, Michel François,

Mn(C8H4O4)(H2O)2 and Mn2(OH)2(C8H4O4) layered organic–inorganic compounds based on manganese(II) and terephthalate molecules (C8H4O42−) have been studied by DC and AC magnetic measurements and powder neutron diffraction. The dihydrated compound behaves as a 3D antiferromagnet below 6.5 K. The temperature dependence of its χT product is typical of a 2D Heisenberg system and allows determining the in-plane exchange constant J≈−7.4 K through the carboxylate bridges. The magnetic structure confirms the ...

Tópico(s): Organic and Molecular Conductors Research

2011 - Elsevier BV | Journal of Solid State Chemistry

Artigo Acesso aberto Revisado por pares

Manon Paineau, Isabelle D. Mazet, Sabine Wiedemann‐Merdinoglu, Frédéric Fabre, François Delmotte,

We describe a standard method for characterizing the virulence profile of Plasmopara viticola, the causal agent of grapevine downy mildew. We used 33 European strains to inoculate six grapevine varieties carrying the principal factors for resistance to downy mildew (Rpv1, Rpv3.1, Rpv3.2, Rpv5, Rpv6, Rpv10, and Rpv12) and the susceptible Vitis vinifera 'Chardonnay'. For each interaction, we characterized the level of sporulation by image analysis and the intensity of the grapevine hypersensitive response ...

Tópico(s): Plant Pathogens and Fungal Diseases

2022 - American Phytopathological Society | Phytopathology

Artigo Revisado por pares

Adel Mesbah, Romain Sibille, Thomas Mazet, B. Malaman, Sébastien Lebègue∥, Michel François,

The magnetic properties of the solid solution (Co1−xFex)2(OH)2(C8H4O4) x = 0.25 (1), x = 0.5 (2), x = 0.75 (3), x = 0.88 (4) and of the pure iron compound x = 1.0 (5) (C2/m) were investigated by magnetic susceptibility measurements and neutron diffraction experiments. Magnetic measurements show that the pure iron compound is antiferromagnetic below TN = 65 K. The AC susceptibility vs. temperature curves for the iron-cobalt solid solutions reveal a complicated magnetic behavior. This behavior is discussed with that ...

Tópico(s): X-ray Diffraction in Crystallography

2010 - Royal Society of Chemistry | Journal of Materials Chemistry

Artigo Revisado por pares

Romain Sibille, Thomas Mazet, Erik Elkaı̈m, B. Malaman, Michel François,

A new hydroxythiophenedicarboxylate metal-organic framework based on Mn(II) cations has been obtained by an aqueous two-step procedure including hydrothermal treatment. The structure of Mn(3)(OH)(2)(C(6)H(2)O(4)S)(2) has been determined ab initio from synchrotron X-ray powder diffraction data and consists of infinite inorganic ribbons which are interlinked by 2,5-thiophenedicarboxylate (tdc) molecules (monoclinic, space group P2(1)/c, a = 3.4473(1) Å, b = 19.1287(1) Å, c = 11.0069(1) Å, β = 97.48(1)°, V = 719. ...

Tópico(s): Magnetism in coordination complexes

2012 - American Chemical Society | Inorganic Chemistry

Artigo Revisado por pares

Franco Mangiarotti, G. Kirby, Michał Duda, M. Mentink, Lucio Fiscarelli, M. Bajko, Dominic Coll, Vincent Desbiolles, J. Feuvrier, J. Mazet, J. van Nugteren, K. Pépitone, Francois-Olivier Pincot, G. de Rijk, J. W. Robertson, Jens Steckert, E. Todesco, Gerard Willering,

In the frame of the high-luminosity upgrade project for the large hadron collider, new twin aperture beam orbit corrector magnets will be installed near the recombination dipole (D2). These magnets are 2.2 m long canted cosine theta NbTi dipoles, with two independently powered apertures oriented such that their field vectors are perpendicular to each other and to the direction of the beams. A 0.5 m model magnet in single and double aperture configuration and a full-length double aperture prototype ...

Tópico(s): Particle accelerators and beam dynamics

2019 - IEEE Council on Superconductivity | IEEE Transactions on Applied Superconductivity

Artigo Acesso aberto Revisado por pares

Romain Sibille, D. G. Mazzone, Voraksmy Ban, Thomas Mazet, Michel François,

Coordination networks (CNs), such as, for instance, metal–organic frameworks (MOFs), can turn into remarkable magnets, with various topologies of spin carriers and unique opportunities of cross-coupling to other functionalities. Alternatively, distinct inorganic subnetworks that are spatially segregated by organic ligands can lead to coexisting magnetic systems in a single bulk material. Here, we present a system of two CNs of general formula Mn(H2O)x(OOC-(C6H4)y-COO). The compound with two water ...

Tópico(s): Advanced Condensed Matter Physics

2018 - American Chemical Society | Inorganic Chemistry