102,801 research outputs found
I depositi wurmiani del Riparo Tagliente
No full textVengono illustrati i risultati degli studi interdisciplinari dei depositi con industrie del Paleolitico medio e superiore del Riparo Tagliente (Verona
Measurements of the 90, 91, 92,94, 96-Zr(n,gamma) Cross Sections at n_TOF
No full textThe neutron capture cross sections of 90,91,92,94,96-Zr have been measured at the CERN n_TOF facility in the energy range from 1 eV to 1 MeV. The improved experimental conditions at n_TOF allow to obtain the required accuracy needed in s-process nucleosynthesis studies
Biomolecular analysis of the Epigravettian human remains from Riparo Tagliente in northern Italy
No full textThe Epigravettian human remains from Riparo Tagliente in northern Italy represent some of the earliest evidence of human occupation in the southern Alpine slopes after the Last Glacial Maximum. Genomic analyses of the 17,000-year-old Tagliente 2 mandible revealed the oldest presence of a genetic profile with affinities to the Near East in the Italian peninsula, which later became the most widespread hunter-gatherer ancestry across Europe. However, a comparable biomolecular characterization of the Tagliente 1 burial remains unavailable, preventing us from defining its biological relationships with Tagliente 2. Here, we apply paleogenomic, isotopic, and radiocarbon dating analyses on a femur fragment of Tagliente 1 and compare the reconstructed data with previously reported results from Tagliente 2. Despite their different isotopic signatures and non-overlapping radiocarbon dates, we reveal that the two human remains belong to the same male individual. We determine that the distinct isotopic values can be explained by different dietary practices during lifetime, whereas the non-overlapping radiocarbon dates can be caused by minimal radiocarbon contamination, possibly deriving from chemical treatments for conservation purposes. These findings highlight the importance of interdisciplinary biomolecular studies in offering new perspectives on the Palaeolithic fossil record and addressing long-standing bioarchaeological questions.Biomolecular investigation of Epigravettian human remains from Riparo Tagliente in northern Italy using paleogenetics, stable isotopes and radiocarbon dating
Riparo Tagliente (Stallavena di Grezzana, VR)
No full textIl Riparo Tagliente è ubicato alla base del Monte Tregnago, sul versante sinistro della Valpantena, ad una altitudine di circa 226 m sul livello del mare (fig. 1). Scoperto nel 1958 da Francesco Tagliente, il sito fu indagato tra il 1962 e il 1964, dal Museo Civico di Storia Naturale di Verona e dal 1967 ad oggi dall'Università di Ferrara
Biomolecular analysis of the Epigravettian human remains from Riparo Tagliente in northern Italy
No full textThe Epigravettian human remains fromRiparo Tagliente in northern Italy represent some of the earliest evidence of human occupation in the southern Alpine slopes after the Last Glacial Maximum. Genomic
analyses of the 17,000-year-old Tagliente 2 mandible revealed the oldest presence of a genetic profile with affinities to the Near East in the Italian peninsula, which later becamethe most widespread huntergatherer
ancestry across Europe. However, a comparable biomolecular characterization of the Tagliente 1 burial remains unavailable, preventing us from defining its biological relationships with Tagliente 2. Here, we apply paleogenomic, isotopic, and radiocarbon dating analyses on a femur fragment of Tagliente 1 and compare the reconstructed data with previously reported results from Tagliente 2. Despite their different isotopic signatures and non-overlapping radiocarbon dates, we
reveal that the two human remains belong to the same male individual. We determine that the distinct isotopic values can be explained by different dietary practices during lifetime, whereas the nonoverlapping
radiocarbon dates can be caused by minimal radiocarbon contamination, possibly deriving from chemical treatments for conservation purposes. These findings highlight the importance
of interdisciplinary biomolecular studies in offering new perspectives on the Palaeolithic fossil record and addressing long-standing bioarchaeological questions
Neandertal teeth from the Mousterian levels of the Riparo Tagliente (Verona - N-E Italy)
No full textTwo isolated deciduous human teeth were found during excavation of the Mousterian levels of the Tagliente Rockshelter (Verona, N-E Italy). They show morphometric characteristics typical of Neandertal teeth. The SEM analysis shows a microwear typology less differentiated than usually observed on permanent Neandertal molar
A reexamination of the Middle Paleolithic human remains from Riparo Tagliente, Italy
No full textDespite new discoveries of human fossil remains, some aspects of paleoanthropological research are biased by the poor sample size, which limits our understanding of intra-species variability among the different hominin species. In this context, continuous assessment and reassessment of human fossil remains discovered decades ago, and often unknown to the scientific community, represent an opportunity to address this issue. Moreover, deciduous teeth are less studied than permanent dentitions, an aspect which contributes to limit our understanding. In the present study, we provide a detailed description of Tagliente 3 (upper right second deciduous molar) and Tagliente 4 (lower left deciduous canine), two deciduous teeth from Riparo Tagliente (Stallavena di Grezzana, Verona) attributed to Homo neanderthalensis. In terms of morphology and size, Tagliente 3 presents typical Neandertal derived features (e.g., likely large hypocone and complex topography of the enamel-dentine junction). Although deciduous canines usually do not provide substantial morphologically diagnostic information, Tagliente 4 falls in the upper range of the Neandertal variability for its bucco-lingual diameter. In terms of tissue proportions both teeth fall within the Neandertal range of variation: Tagliente 3 for the enamel thickness distribution and Tagliente 4 for the volume of the crown dentine. This work contributes to increase our knowledge on the variability of Neandertal deciduous dentition
The 92_Zr(n, gamma) reaction and its implications for stellar nucleosynthesis
No full textBecause the relatively small neutron capture cross sections of the zirconium isotopes are difficult to measure, the results of previous measurements are often not adequate for a number of problems in astrophysics and nuclear technology. Therefore, the 92_Zr(n, gamma) cross section has been remeasured at the CERN n_TOF facility, providing a set of improved parameters for 44 resonances in the neutron energy range up to 40 keV. With this information the cross-section uncertainties in the keV region could be reduced to 5% as required for s-process nucleosynthesis studies and technological applications.© 2010 The American Physical Societ
- …
