Haute Ecole Arc Conservation-Restauration

Applications de l'imagerie par la transformation de la réflectance (ITR) pour l'identification et la caractérisation des vernis anciens sur les alliages cuivreux

Rochat, Rebecca

Mémoire de bachelor : Haute Ecole Arc Conservation-Restauration, 2017.

Ancient varnishes on copper alloys are part of the patrimonial collections. They are applied to protect the metal against corrosion but also to enhance the yellow colour in order to imitate gold. We find this technology in the areas of decorative bronze objects, horology and scientific-technical objects. In order to preserve this surface treatment, the conservator-restorer faces difficulties in...

Université de Fribourg

Osteology, fossil record and palaeodiversity of the European lizards

Villa, Andrea ; Tschopp, Emanuel ; Georgalis, Georgios L. ; Delfino, Massimo

In: Amphibia-Reptilia, 2017, vol. 38, no. 1, p. 79–88

he capability of palaeontologists to identify fossil remains of a particular group of vertebrates strongly depends on the knowledge they have of its comparative osteology and on the actual presence of diagnostic differences among the considered taxa. This could have a relevant influence on the study of palaeodiversity, since a low recognisability causes a loss of data when trying to...