1,721,029 research outputs found
Late Holocene environmental change in the coastal southern Somalia inferred from Achatina and rhizoliths
No full textA recent aminochronology of Pleistocene mammals from Rome area and Isernia - La Pineta deposits (Italy).
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La serie marina olocenica di Cafieri (Isola d'Ischia): implicazioni vulcano-tettoniche e geomorfologiche
No full textThe Holocene marine sediments outcropping at Cafieri, along the north-eastern coast of the Ischia island have been studied in order to define sedimentation environment, age, and relationship with the surrounding volcanic formations. The studied section, constituted by stratified tufites, ends upwards with a beach, previously attributed to the first part of the VIII century B.C., corresponding to an uplifted marine erosion surface, fossilized by pyroclastic and lava formations. A second uplift displayed a 2nd order erosion surface, subdivided into two, bordering the Cafieri outcrop. The age of the sediments as obtained with the Radiocarbon method applied to the fauna of the tufites, is less than 10,000 years B.P. The sedimentation environment as established by means of benthic foraminifers and ostracods assemblages, corresponds to a depth range between -50 and -80 m
Ecological anD Cultural Relevance of the Recent New Radiocarbon Dates from Lybian Sahara. In: Origin and Early Development of Food Producing Cultures in North -Eastern Africa, Polish Academy of Sciences
No full textLa serie marina olocenica di Cafieri (Isola d'Ischia): implicazioni vulcano-tettoniche e geomorfologiche
No full textThe Holocene marine sediments outcropping at Cafieri, along the north-eastern coast of the Ischia island have been studied in order to define sedimentation environment, age, and relationship with the surrounding volcanic formations. The studied section, constituted by stratified tufites, ends upwards with a beach, previously attributed to the first part of the VIII century B.C., corresponding to an uplifted marine erosion surface, fossilized by pyroclastic and lava formations. A second uplift displayed a 2nd order erosion surface, subdivided into two, bordering the Cafieri outcrop. The age of the sediments as obtained with the Radiocarbon method applied to the fauna of the tufites, is less than 10,000 years B.P. The sedimentation environment as established by means of benthic foraminifers and ostracods assemblages, corresponds to a depth range between -50 and -80 m
The prehistoric site of Capo Zafferano (Sicily): Geomorphology and Holocene sea level variations
No full textA deposit of mollusk shell remains (Patella ferruginea and Trochus sp.) associated with stone artefacts (weapons, scrap-ers, etc.) of Mesolithic age, has been identified in an underwater cave (-20 m s.I.) at Capo Zafferano, a carbonatic promontory with steep cliffs 10 km E of Palermo (NW Sicily). Patella ferruginea samples are radiocarbon dated to 8960±130 yr B.P. calibrated to 9350÷9900 yr BP in agreement with archaeological dating. Underwater investigations indicate submerged terraces, at -16÷18 m below present sea-level, forming a continuous strip around the promontory and which provided access to the cave. Sea-level at 9500 yr B.P. at the site was about 25 m below the present level: this datum is in agreement with the Tyrrhenian Holocene sea-level curve
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
Variations on the Author
Full text link“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
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