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Article Reference Tracking the origin of worked elephant ivory of a medieval chess piece from Belgium through analysis of ancient DNA
Located in Library / RBINS Staff Publications 2022 OA
Article Reference Tracking the source of lead of medieval glazed pottery of the Meuse valley (Belgium) through lead isotope analyses.
Abstract Lead isotope analyses (by MC-ICP-MS) have been performed on lead-glazed pottery artefacts from several production and consumption sites in the Meuse basin (Belgium) spanning a long-time period from the 9th to the 16th century AD. Comparison of the lead isotope data of the glazes from three mosan workshops with those of galenas from Palaeozoic (Variscan) Pb-Zn deposits from both Belgium and Western Germany points to a common Pb source that we identify as the regional Pb deposits hosted in Dinantian limestones of the Ardenno-Rhenish Massif, more specifically in the Namur and Verviers synclines in Belgium and in the Aachen-Stolberg mining district in Germany. The overall similarity of isotopic compositions between the medieval artefacts and the Variscan galenas implies that the mosan medieval potters used accessible local Pb-Zn ores mined between Namur and Huy. On the consumption sites of Dinant, the slightly different isotopic compositions of some potteries suggest that other regional Pb sources were used to produce the glazes. A comparison with Roman lead objects discovered in north-western Europe (Northern Gaul) shows the very good correspondence of the Pb isotopic compositions with those of the Medieval artefacts which indicates a very long continuity of regional lead supply and consequently of lead ore mining. Keywords: Lead-glazed pottery; Middle Age; Lead isotope analysis; Lead ores; Sourcing; Mosan valley; Belgium
Located in Library / RBINS Staff Publications 2021
Article Reference Traits allowing some ant species to nest syntopically with the fire ant Solenopsis saevissima in its native range.
Supercolonies of the red fire ant Solenopsis saevissima (Smith) develop in disturbed environments and likely alter the ant community in the native range of the species. For example, in French Guiana only 8 ant species were repeatedly noted as nesting in close vicinity to its mounds. Here, we verified if a shared set of biological, ecological, and behavioral traits might explain how these 8 species are able to nest in the presence of S. saevissima. We did not find this to be the case. We did find, however, that all of them are able to live in disturbed habitats. It is likely that over the course of evolution each of these species acquired the capacity to live syntopically with S. saevissima through its own set of traits, where colony size (4 species develop large colonies), cuticular compounds which do not trigger aggressiveness (6 species) and submissive behaviors (4 species) complement each other.
Located in Library / RBINS Staff Publications
Article Reference Traits allowing some ant species to nest syntopically with the fire ant Solenopsis saevissima in its native range
Located in Library / RBINS Staff Publications
Article Reference Transcription, signaling receptor activity, oxidative phosphorylation and fatty acid metabolism mediate the presence of closely-related cryptic species in distinct intertidal and cold-seep habitats
Located in Library / RBINS Staff Publications 2016
Article Reference Transdifferentiation of macrophages into fibroblasts as a result of Schistosoma mansoni infection.
The possibility of transdifferentiation of macrophages into fibroblasts which could be at the origin of fibrotic tissue in schistosome-infected mice was studied using immunocytochemical techniques. Macrophage cell samples extracted from the peritoneal cavity of schistosome-infected mice were fractionated on a Percoll gradient. The cultures were purified by treatment with a trypsin solution to eliminate any fibroblasts possibly collected along with the macrophages. Immunocytochemical methods were then used to characterize the cells at differentpoints in time. The fibroblastic property of the morphologically transformed cells was confirmed by their positive labeling with the anti-procollagen antibody. However, these cells still possessed the mac-1 and mac-2 antigens which characterize the monomacrophage line.
Located in Library / No RBINS Staff publications
Article Reference Transposable elements and asexual reproduction
Located in Library / RBINS Staff Publications
Article Reference Transposable elements in Ostracoda (Crustacea)
Located in Library / RBINS Staff Publications
Article Reference Traumatism in the wild animals kept and offered at predynastic Hierakonpolis, Upper Egypt
A description is given of the violence related pathologies that are observed in a number of wild mammals that were buried in the predynastic cemetery HK6 at Hierakonpolis, Upper Egypt. Unlike other predynastic graveyards, where only domestic cattle, sheep, goat and dogs are interred, the elite cemetery HK6 yielded also a wide variety of wild species that were buried as part of extensive mortuary complexes surrounding the graves of the highest local elite. The animals were interred, singly or in groups, often in graves of their own, but some also accompany human burials. Pathologies were found on the skeletons of 20 of the 38 wild animals discovered thus far, namely in 15 anubis baboons (Papio anubis), one leopard (Panthera pardus), one jungle cat (Felis chaus), one hartebeest (Alcelaphus buselaphus), one aurochs (Bos primigenius) and one hippo (Hippopotamus amphibius). Most of the pathologies are healed fractures resulting from violent blows, and a smaller proportion seems to be related to tethering. These conditions indicate that the animals were held in captivity for a prolonged period of time after their capture. The type and frequency of the encountered deformations differ from those seen in wild animals from other, more recent Egyptian cemeteries (Abydos, Tuna el-Gebel, Gabanet el-Giroud, Saqqara) where mainly metabolic disorders are observed that have been attributed to chronic malnutrition and to vitamin D deficiency as a result of inadequate housing in a dark environment. Keywords: archaeozoology - palaeopathology - bone fracture - hartebeest - aurochs - baboon - leopard - jungle cat.
Located in Library / RBINS Staff Publications
Article Reference Tree-dwelling ant survey (Hymenoptera, Formicidae) in Mitaraka, French Guiana
Located in Library / RBINS Staff Publications 2019