Search results for "Univers"
showing 10 items of 6284 documents
Teacher Training and Linguistic Diversity: Methodological and Outcome Analysis of an Online Course
2022
This research aims to delve into sociolinguistic content in the context of teacher training itineraries at the Universitat Politècnica de València (Spain). Using both quantitative and qualitative methodologies, the presence of sociolinguistic content will be justified. Likewise, we will analyze the contents and methodology of the subject based on the access data to the materials and the evaluation of the students. The results obtained refer both in terms of the importance of dealing with linguistic attitudes in class and of assessing the tool itself and some of the students' work habits, which we can extrapolate to others similar training environments, in order to extract good practices.
Orbital chronology of the lower-middle Aptian: palaeoenvironmental implications (Serre Chaitieu section, Vocontian Basin).
2013
4 pages; International audience; A detailed cyclostratigraphic study conducted on several proxies including spectral gamma ray, magnetic susceptibility, clay minerals, and carbonate content suggests that the return to equilibrium in the carbon cycle after the major disturbance linked with Oceanic Anoxic Event 1a occurred in about 2 Myr. The minimum duration of the D. furcata zone is estimated at 0.46 Myr and that of the E. subnodosocostatum zone at 1.45 Myr. Strengthening of the obliquity record in the furcata zone confirms the cooling that characterizes this period.
Le passage à une économie fondée sur la connaissance entraîne-t-il une transformation des contenus de l'éducation ?
2022
International audience; Nos économies sont de plus en plus basées sur la connaissance. Les exigences des entreprises sur le marché du travail doivent alors amener les établissements d'enseignement à prêter une attention toute particulière aux contenus de ce qui est enseigné. La présentation des résultats d'une recherche empirique internationale originale, menée auprès de diplômés de l'enseignement supérieur, permet de préciser les compétences les plus recherchées dont celles qui concourent à l'innovation. L'auteur souligne ainsi, au-delà de l'influence des variables traditionnelles, l'importance des compétences en informatique, de la pratique d'une langue étrangère, de la maîtrise du raison…
Jurassic evolution of the Arabian carbonate platform edge in the central Oman Mountains
2005
International audience; The Jurassic Sahtan Group exposed in northern Oman was deposited in shallow marine environments at the edge of the Arabian Platform facing the Neo-Tethys (Hamrat Duru Basin). The upper Sahtan Group is made up of a mixed siliciclastic-carbonate unit overlain by pure carbonate deposits, assigned to a Bathonian and Early Callovian age on the basis of brachiopods and foraminifers. These carbonate depositional systems were composed of outer oolitic shoals that underwent subaerial exposure, and a deeper, somewhat restricted, gently dipping shelf interior. Oolitic material was shed off the platform edge into the deep-sea depositional complex of the Guweyza Formation. The Sa…
Sulfur isotope's signal of nanopyrites enclosed in 2.7 Ga stromatolitic organic remains reveal microbial sulfate reduction.
2018
18 pages; International audience; Microbial sulfate reduction (MSR) is thought to have operated very early on Earth and is often invoked to explain the occurrence of sedimentary sulfides in the rock record. Sedimentary sulfides can also form from sulfides produced abiotically during late diagenesis or metamorphism. As both biotic and abiotic processes contribute to the bulk of sedimentary sulfides, tracing back the original microbial signature from the earliest Earth record is challenging. We present in situ sulfur isotope data from nanopyrites occurring in carbonaceous remains lining the domical shape of stromatolite knobs of the 2.7-Gyr-old Tumbiana Formation (Western Australia). The anal…
L’Archeologia tra formazione e pratica: il ruolo dell’Università in Sicilia
2014
The relationship between university and political and social institutions in Sicily has undergone a deep transformation since the end of the '80s. Before that period, university, as a teaching and research structure, was deeply linked with political institutions dealing with the management and preservation of cultural heritage; these institutions, on the other hand, offered the main chances of employment for graduates in humanities and archaeology. After that period, university and politic have undertaken instead, completely different ways, especially in the field of cultural heritage, due to a different economic context and a wider ideological change. The role of the university as a place …
Gesualdo Bufalino nelle carte ritrovate dell’Archivio Storico dell’Università di Palermo
2022
Il contributo ricostruisce le vicende del percorso universitario di Gesualdo Bufalino alla luce della documentazione inedita custodita nell'Archivio Storico dell'Università degli Studi di Palermo, nel quale Bufalino si laureò con una tesi in Archeologia.
Millennial-scale phase relationships between ice-core and Mediterranean marine records: insights from high-precision 40Ar/39Ar dating of the Green Tu…
2013
International audience; With the advent of annually-resolved polar ice records extending back to 70 ka, marine and continental paleoclimate studies have now matured into a discipline where high-quality age control is essential for putting on an equal pace layer-counted timescale models and Late Quaternary sedimentary records. High-resolution U-Th dating of speleothem records and 40Ar/39Ar dating of globally recorded geomagnetic excursions have recently improved the time calibration of Quaternary archives, reflecting the cross-disciplinary effort made to synchronize the geologic record at the millennial scale. Yet, tie-points with such an absolute age control remain scarce for paleoclimatic …
The Mediterranean Sea and the Gulf of Cadiz as a natural laboratory for paleotsunami research: Recent advancements
2021
International audience; After the 2004 Indian Ocean (IOT) and the 2011 Tohoku-oki tsunamis, new research in tsunami-related fields was strongly stimulated worldwide and also in the Mediterranean. This research growth yields substantial advancements in tsunami knowledge.Among these advancements is the “Paleotsunami” research that has marked particular progress on the reconstruction of the tsunami history of a region. As an integration of the historical documentation available in the Mediterranean and the Gulf of Cadiz areas, geological and geoarchaeological records provide the insights to define the occurrence, characteristics, and impact of tsunamis of the past. Here, we present the recent …
Climate controls on the Holocene development of a subarctic lake in northern Fennoscandia
2015
International audience; Climate exerts strong control over the functioning of northern freshwater ecosystems, yet their resilience and responses to climate forcing may vary. We examined postglacial development patterns in subarctic Lake Varddoaijavri to discern the impact of direct climate controls, catchment influence, and ontogenic processes on the ecological functioning of the lake over the Holocene. Subfossil diatom assemblages together with the elemental and stable isotopic (delta C-13, delta N-15) composition of sediment organic matter were used to examine climate-induced changes in the structure of the phototrophic community and transport of terrestrial organic matter from the catchm…