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Archaeopteryx, animali alla conquista dell’aria
No full textCatalogo della mostra "Archaeopteryx, animali alla conquista dell’aria
Benthic foraminifera and ostracoda as bioindicators of anthropogenic impacts in the La Maddalena Harbour (Sardinia, Italy)
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
The Mesozoic palaeoenvironmental richness of the Trieste Karst
Full text linkThe Mesozoic of the Trieste Karst is part of the 90th Congress of the Italian Geological Society, Trieste Italy, 2021. The guide aims at documenting selected outcrops located on the Karst plateau where fossil richness is related to particular carbonate platform facies associations to highlight the area as an important archive for marine and continental palaeodiversity. The Trieste Natural History Museum holds the most important collection of Late Cretaceous fossils, including exceptionally preserved dinosaurs (Tethyshadros insularis), reptiles, land plants, crustaceans, and fishes of the Villaggio del Pescatore geosite. At the Villaggio del Pescatore geosite fossil-rich carbonate rhythmites are spectacularly exposed on quarried surfaces. At Cava Romana it is possible to observe the Upper Cretaceous rudist-rich platform facies of the "Aurisina limestone". The Slivia quarry exposes a Cretaceous palaeokarst deposit made of large limestone blocks. The Cenomanian peritidal carbonate succession of the Moschenizza hill shows m-Thick rudist limestone beds, and cm-Thick dark-coloured, muddy wackestones sporadically rich in fossil land plants like Frenelopsis
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