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The authenticity of Platonic Critias
No full textThe article discusses the thesis of Rashed and Auffret, who believe that the Critias, which has until now been considered Platonic by almost all scholars, is spurious, due to some inconsistencies that seem to emerge from a comparison between the prologues of the Critias and the 77-maeus. These contradictions do not seem decisive and can be explained through a different interpretation of the two texts. In addition to the arguments concerning the contents of the work, some linguistic and lexical observations can be added that also confirm the authenticity of the dialogue
Sul secondo libro di Quinto Smirneo (alla luce di un recente commento)
Get PDFThis paper aims to examine some textual problems in the second book of Quintus of Smyrna’s Posthomerica, taking the cue from the recent commentary of Alessia Ferreccio. In the first part some assumptions of Ferreccio’s work are discussed, while in the second part other passages are taken into account
The Barga Basin (Tuscany): A record of Plio-Pleistocene mountain building of the Northern Apennines, Italy
No full textThe Barga Basin, located between the Apuane Alps and the Northern Apennines, was the site of a fines-dominated meandering alluvial plain during the Early-Middle Pliocene. Rivers came from the Tyrrhenian side, across the Apuane Alps, and carried gravels mostly composed of Tuscan units that capped the metamorphic complex. Apatite fission tracks indicate that the metamorphic core of the Apuane Alps was deeper than 4 km. To the east, the Apennine divide did not exist and the area was part of the Po plain. A major unconformity marks the transition to the Late Pliocene-Early Pleistocene sequence, mostly made of metamorphic gravels deposited by braided rivers still coming from WNW. At ca. 2 Ma, the Apuane Mountains, following uplift, underwent severe denudation. Wind gaps along the Apuane ridge suggest that the drainage still partially extended westward in the area that is now drowned under the Ligurian-Tyrrhenian sea. Since the Early Pleistocene, rapid uplift of the Apennine Ridge led to the present-day drainage and the deposition of two alluvial terraces. The older terrace at Monte Perpoli is scarcely represented while the Late Pleistocene one is made of large west-flowing telescopic alluvial fans. Since late Early Pleistocene, uplift of the Apennine divide, associated with the activity of high-angle normal faults, generated reversed rivers. During this period the activity of the Versilia fault isolated the Apuane ridge and further drowned the eastern Ligurian basin. A new interpretation and timing of the tectonic evolution of this sector of the Apennine and the adjacent Tyrrhenian sea and peri-Adricatic Basin emerges. (C) 2007 Elsevier Ltd and INQUA. All rights reserved
Occurrence of mammalia relicts at site Stematia
No full textOccurrence of mammalia relicts at site Stemati
Land mammal colonisation of islands is a multifactorial product; a critic to the unwise use of models
Get PDFThe colonization of islands by terrestrial mammals has been the topic of a flurry of studies. Contributions normally tend to oversimplify the subject, focusing on specific key factors which are allegedly considered the best to explain why, how and when non volant terrestrial mammals reached islands and which are used to devise models. The subjectivity in the choice of key factors understandably leads to controversy and debate. Insular faunas are the multifactorial result of complex combinations of facts, conditions and processes. Hence, the faunal assemblages of each island should be inquired individually, on a case-by-case basis. Models, by definition, are simplified representations of reality, which turn into oversimplifications when reality is so overly complex as it is in islands; yet models are usually considered the unavoidable starting point of investigations. An evidence-based, multidisciplinary approach, instead, is highly recommended. Besides obvious paleontological evidence, we need to carefully inspect geological and stratigraphical information, climatological factors, sealevel evolution, paleogeographic characteristics, ecological, physiological and environmental factors, behavioral characters and ecological preferences, genetics and densities of colonizing populations, as well as taphonomic, sampling and analytical biases. The lack of some of this indispensable information seriously affects the reliability of interpretations and reconstructions
Possible Apennine-Dinaride corridors for Miocene mammalian colonization of the Western Apulian domains.
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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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