Search results for "ONTOLOGIA"
showing 10 items of 646 documents
L’interpretazione heideggeriana di Aristotele nella "Vorlesung" del "Sommersemester" 1922 (Seconda parte)
2021
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Löytyykö tekniikan olemus laatikoista?
2020
Kirja-arvostelu: Boxes – A Field Guide. Edited by Susanne Bauer, Martina Schlünder & Maria Rentetzi. Mattering Press, 2020.
In Vitro Biocompatibility of Several Children's Toothpastes on Human Gingival Fibroblasts
2022
The European Academy of Paediatric Dentistry has recommended fluoride toothpastes from the eruption of the first teeth in children. Toothpastes stay in the mouth in contact with human gingival fibroblasts (hGFs) for a long time. Thus, the objective of this study was to compare the cytotoxicity of five different commonly used children’s toothpastes: Oral B Kids +3 (Procter & Gamble, Alicante, Spain), Fluor Kin Calcium (Kin, Madrid, Spain), PHB Junior (PHB, Barcelona, Spain), Colgate +3 (Colgate Palmolive, Madrid, Spain) and Vitis Kids (Dentaid, Valencia, Spain) on hGFs. The children’s toothpastes were exposed to hGFs at different concentrations (1:1, 1:2, 1:4). Afterwards, several tests …
Caratterizzazione micropaleontologica a foraminiferi delle Unità litologiche argillose affioranti nella Sicilia centro-occidentale e meridionale
2011
The Monte San Nicola section (Sicily) revisited: A potential unit-stratotype of the Gelasian Stage
2022
The Monte San Nicola area (Southern Sicily) offers a spectacular exposure of open-marine sediments that were employed in 1998 for defining the Global Stratotype Section and Point (GSSP) of the Gelasian Stage (Upper Pliocene). After the lowering of the Pliocene/Pleistocene boundary to ca. 2.6 Ma in 2010, the Gelasian GSSP has been redefined as the base of both the Pleistocene Series and the Quaternary Period, which increased its importance and visibility within the scientific community. However, documentation on the Monte San Nicola reference section is still sparse. In the light of its renewed status, we decided to undertake a complete revision of the Gelasian Stage in its type area, in ord…
Structural changes in Italian Late Pliocene - Pleistocene large Mammal assemblages
2001
A schematic range-chart of the late Pliocene - Pleistocene large mammal genera is presented. The main faunal events recognizable within this time span are discussed. The first faunal event occurs around the Gauss/Matuyama transition with the beginning of the middle Villafranchian characterized by the arrival of Mammuthus (Archidiskodon) and Equus (the so-called "elephant-Equus event"). The following faunal event occurs at the Plio-Pleistocene transition (the so-called "wolf event"). The latter is marked by a strong contraction in the diversity of the ruminants and by a renewal in the carnivore diversity with the arrival of social carnivores. The low diversity in ruminant assemblage persist …
New data on the evolution of Mikrotia (Muridae, Rodentia) in the Late Miocene of Gargano (Apulia, Italy).
2014
The trilobite Serrodiscus Richter & Richter from Iberia, with systematic review of the genus and its international correlation through the Cambrian S…
2022
Serrodiscus is considered one of the first trilobite genera showing global distribution during the Cambrian and a key component for the international correlation of this period. However, this genus encompasses many poorly documented species, ambiguous diagnoses or characters that depend on taphonomy and deformation based on one single specimen. Thus, in the present work, we carry out a systematic overview of the genus, evaluating the taphonomic and deformational variability of a large number of specimens from the same locality and horizon. In addition, and due to the difficulty of making synonymy decisions, closely related species are grouped into three different groups taking into consider…
A new Meckel's cartilage from the Devonian Hangenberg black shale in Morocco and its position in chondrichthyan jaw morphospace.
2022
Fossil chondrichthyan remains are mostly known from their teeth, scales or fin spines only, whereas their cartilaginous endoskeletons require exceptional preservational conditions to become fossilized. While most cartilaginous remains of Famennian (Late Devonian) chondrichthyans were found in older layers of the eastern Anti-Atlas, such fossils were unknown from the Hangenberg black shale (HBS) and only a few chondrichthyan teeth had been found therein previously. Here, we describe a Meckel’s cartilage from the Hangenberg black shale in Morocco, which is the first fossil cartilage from these strata. Since no teeth or other skeletal elements have been found in articulation, we used elliptica…
The geochemical riddle of “low-salinity gypsum” deposits
2022
International audience; Gypsum makes up about one fifth of giant salt deposits formed by evaporation of seawater throughout Earth’s history. Although thermodynamic calculations and precipitation experiments predict that gypsum precipitates when the salinity of evaporating seawater attains about 110 g kg-1, gypsum deposits of the Mediterranean Salt Giant often bear the geochemical signature of precipitation from less saline water masses. Addressing this geochemical riddle is important because marine gypsum deposition and continental gypsum erosion affect the global carbon cycle. We investigated gypsum deposits formed in the marginal basins of the Mediterranean Sea during the Messinian Salini…