429 research outputs found

    Institutions royales et références italiennes : l'académie pour l'éducation de la noblesse à Aix-en-Provence au début du XVIIe siècle

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    A partir de 1598, avec l'appui de la royauté, plusieurs institutions destinées à la noblesse d'épée s'ouvrent à travers le royaume. L'académie pour jeunes nobles d'Aix-en-Provence est particulièrement bien documentée (archives communales d'Aix, archives des états de Provence aux archives départementales des Bouches-du-Rhône, série O1 des Archives Nationales) et offre un cas privilégié d'étude de cette institution qui reste très mal connue

    Étienne Baluze et l'Europe savante à l'âge classique

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    La correspondance de l'historien et juriste Etienne BAluze (1630-1718) est une correspondance de travail. Les échanges savnats qu'elle documente montre les moyens mis en œuvre par le savant pour élaborer une œuvre, dont les objets ont évolué au cours de sa vie

    Albert Henry (1910-2002)

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    Identification of an essential virulence gene of cyprinid herpesvirus 3

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    The genus Cyprinivirus consists of a growing list of phylogenetically related viruses, some of which cause severe economic losses to the aquaculture industry. The archetypal member, cyprinid herpesvirus 3 (CyHV-3) causes mass mortalities worldwide in koi and common carp. A CyHV-3 mutant was described previously that is attenuated in vivo by a deletion affecting two genes (ORF56 and ORF57). The relative contributions of ORF56 and ORF57 to the safety and efficacy profile of this vaccine candidate have now been assessed by analysing viruses individually deleted for ORF56 or ORF57. Inoculation of these viruses into carp demonstrated that the absence of ORF56 did not affect virulence, whereas the absence of ORF57 led to an attenuation comparable to, though slightly less than, that of the doubly deleted virus. To demonstrate further the role of ORF57 as a key virulence factor, a mutant retaining the ORF57 region but unable to express the ORF57 protein was produced by inserting multiple in-frame stop codons into the coding region. Analysis of this virus in vivo revealed a safety and efficacy profile comparable to that of the doubly deleted virus. These findings show that ORF57 encodes an essential CyHV-3 virulence factor. They also indicate that ORF57 orthologues in other cypriniviruses may offer promising targets for the rational design of attenuated recombinant vaccines
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