24 research outputs found

    Un nouveau procurateur ducénaire anonyme à Orange: Avec la collaboration de Guillaume Hairy

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    A new inscription from Orange (France) honours an anonymous procurator. It is a part of a statue base that seems to have been reused. Only the end of the career is preserved. After a function linked with Arles, he was procurator patrimonii, then he became the procurator of Hispania Tarraconensis. The inscription was erected by the city of Orange between Trajan and the Severes. It is a rare example of the public epigraphy of this city.Une nouvelle inscription d'Orange (France) honore un procurateur anonyme. Seule la fin de la carrière figure sur une base de statue remployée présentant une fonction liée à Arles, et les poste de procurator patrimonii et procurator Hispaniae Tarraconensis. Érigée par la cité d'Orange entre Trajan et les Sévères, c'est un des rares exemples d'épigraphie publique de la colonie

    CHARACTERIZATION OF PAST METALLURGICAL RESIDUES USING GEOPHYSICAL IMAGING: A CASE STUDY OF DUFERCO SITE (BELGIUM)

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    Ancient metallurgical industries produced large amounts of residues which were typically deposited in heaps or tailing ponds. They were derived from mineral processing and metallurgical treatments that were not as efficient as the extraction processes used nowadays. On one hand, metallurgical wastes could represent a potential source of pollution, being an environmental and sanitary threat even centuries after the end of industrial activities. On the other hand, these residues may still contain valuable ferrous materials, non-ferrous metals and other elements considered as critical raw materials. In this regard, remediation strategies can be improved by integrating the valorization of metallurgical residues and potential resource recovery. To this purpose, it is crucial to have in-depth information about the composition of the metallurgical waste, and spatial information to identify and quantify volumes of these residues. Geophysical methods represent suitable non-invasive technologies for subsurface site characterization, imaging lateral and vertical variations in the physical properties of geological environments including anthropogenic deposits. Complemented with ground truth data from excavations, geophysical imagery can be quantitatively interpreted in terms of material(s) composition and zonation, volume(s) estimation, etc. In this contribution, we present the results of an integrated geophysical investigation carried out in a slag heap of the former iron and steel factory of Duferco, located in Belgium. First, we carried out a geophysical survey in the field with a 3D Electrical Resistivity Tomography (ERT) and Induced Polarization (IP) acquisition. Based on these results, we designed a targeted sampling, i.e., excavation and collection of samples at different locations and depths. In the laboratory, we measured ERT and IP in the samples and compared them with elemental chemical analyses. We investigated correlations between the laboratory data and identified different types of slags or ‘categories’, i.e., slags richer in Fe, Ca and Si. Then we used a probabilistic approach to classify or predict the categories in the whole domain of field acquisition (where no samples are available). To this aim we used the ERT and IP field data co-located with the samples and the elevation at which these samples were taken. Overall, the combination of geophysical measurements in the field, targeted sampling, geophysical measurements in the laboratory and correlations with chemical analyses, may be promising to quantify the metallic content or materials of interest with a discriminating geophysical signature.NWE-Regenerati

    Detection of a Cis eQTL Controlling BMCO1 Gene Expression Leads to the Identification of a QTG for Chicken Breast Meat Color

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    Classical quantitative trait loci (QTL) analysis and gene expression QTL (eQTL) were combined to identify the causal gene (or QTG) underlying a highly significant QTL controlling the variation of breast meat color in a F2 cross between divergent high-growth (HG) and low-growth (LG) chicken lines. Within this meat quality QTL, BCMO1 (Accession number GenBank: AJ271386), encoding the β-carotene 15, 15′-monooxygenase, a key enzyme in the conversion of β-carotene into colorless retinal, was a good functional candidate. Analysis of the abundance of BCMO1 mRNA in breast muscle of the HG x LG F2 population allowed for the identification of a strong cis eQTL. Moreover, reevaluation of the color QTL taking BCMO1 mRNA levels as a covariate indicated that BCMO1 mRNA levels entirely explained the variations in meat color. Two fully-linked single nucleotide polymorphisms (SNP) located within the proximal promoter of BCMO1 gene were identified. Haplotype substitution resulted in a marked difference in BCMO1 promoter activity in vitro. The association study in the F2 population revealed a three-fold difference in BCMO1 expression leading to a difference of 1 standard deviation in yellow color between the homozygous birds at this haplotype. This difference in meat yellow color was fully consistent with the difference in carotenoid content (i.e. lutein and zeaxanthin) evidenced between the two alternative haplotypes. A significant association between the haplotype, the level of BCMO1 expression and the yellow color of the meat was also recovered in an unrelated commercial broiler population. The mutation could be of economic importance for poultry production by making possible a gene-assisted selection for color, a determining aspect of meat quality. Moreover, this natural genetic diversity constitutes a new model for the study of β-carotene metabolism which may act upon diverse biological processes as precursor of the vitamin A

    Deux officiers romains honorés sur le forum de Vaison-la-Romaine au Ier siècle de notre ère

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    International audienceWe publish two fragmentary inscriptions discovered during the excavation of the forum of Vaison-la-Romaine. They are honorific inscriptions. In all likelihood they were on statue bases. They probably concerned two now anonymous Roman knights. The first was an officer of the legio V Alaudae and a local priest. The second had received military decorations from Vespasian and had links with Mauretania Tingitana.Nous publions deux inscriptions fragmentaires découvertes durant les fouilles du forum de Vaison-la-Romaine. Il s'agit d'inscriptions honorifiques qui devaient se trouver sur des bases de statue. Elles concernaient probablement deux chevaliers romains, désormais anonymes. Le premier était un officier de la légion V Alaudae et avait une prêtrise locale. Le second a reçu des décorations militaires de la part de Vespasien et avait des liens avec la Maurétanie Tingitane

    Un nouveau procurateur ducénaire anonyme à Orange

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    Un nouveau procurateur ducénaire anonyme à Orange

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    Découvertes épigraphiques récentes à Vaison-la-Romaine

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    Conception et dimensionnement d'un filtre planté bi-couches avec abattement de l'azote

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    Rapport scientifique final - Projet "FILTRAN" - N°convention SPW 1410080 - Période: 01.12.2014 au 31.05.2017 Le rejet des eaux usées non traitées dans l'environnement est responsable de la dégradation rapide des écosystèmes aquatiques. Les conséquences directes incluent l'euthrophisation des rivières, la mort de nombreux organismes et la modification souvent irréversible des biotopes. L'épuration des eaux usées est donc un sujet majeur de préoccupation, tant au niveau régional qu'à l'échelle européenne
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