1,720,976 research outputs found
Analisi archeobotaniche della vasca circolare
No full textLe analisi integrate di varie tipologie di reperti hanno fornito interessanti informazioni sia di carattere paletno- botanico, sia per la ricostruzione dell’ambiente vegetale del contesto
L’ambiente vegetale al Novi Sad dal IV sec. a.C. al XII sec. d.C.
No full textLe analisi archeobotaniche integrate permettono di ricostruire il paesaggio vegetale naturale e culturale sia a breve che ad ampio raggio intorno al sito in esame, dando informazioni su flora e biodiversità pregressa, sul quadro ecologico e sull’impatto antropico nell’area investigata. In questo contributo vengono presentati i dati ottenuti per il sito di Novi Sad da una campionatura di saggio che si sviluppa nell’arco cronologico che va dal IV–V a.C. al XI-XII sec. d.C., ma che fa perno soprattutto sul periodo romano fino al tardo antico. I risultati raggiunti incoraggiano l’allargamento della ricerca all’intera campionatura, anche alla luce della complessità del sito
The Late Antique plant landscape in Sicily: Pollen from the agro-pastoral villa del Casale - Philosophiana system
No full textPalynological research carried out on two renowned archaeological sites located in central Sicily allows the reconstruction of agrarian landscapes in Late Antiquity. The palynological investigations may improve the resolution of vegetational-environmental events recorded from extra-local palynological sequences by giving information on local plant landscape and human influence in the region. The stratigraphy uncovered from these archaeological sites features very high resolution. Villa del Casale of Piazza Armerina, a monumental villa included in the UNESCO World Heritage List, and the near ‘agro-town’ Philosophiana are key sites to look for the effects of countryside exploitation in the Roman world. They were extraordinary rural complexes from the Roman to Medieval periods. Their long chronology offers the opportunity to investigate land use and economy transformations that occurred in the area at the transition from Late Antiquity to the Middle Ages. The palynological research has been carried out on 40 samples, including archaeological samples dated from the end of 3rd to 7th century AD, and one moss polster collecting present pollen rain. Ornamental and shade plants were concentrated in the luxury villa, while fruit trees and agrarian activities were more evident in the next farmhouse. Late Antiquity is proved to be a critical period of both transition between different cultures and landscape transformations that have lead the past vegetation to the modern landscape of this island. Nevertheless, pollen suggests a continuity of the agrarian landscape during this period. Although changes had occurred, subsequent cultures were progressively incorporated in the agrarian-pastoral landscape management
BRAIN id: NER92 – pollen dataset
No full textTerramara S. Rosa di Poviglio (RE, N Italy).
Dataset including pollen counts from sediment samples collected from five trenches (NER92a - VP-VG Moat, NER92b - VP-VG II Moat, NER92c - VP-VG III Moat, NER92d - Well 2106, NER92e - Well 6170) opened during archaeological excavations at the Terramara S. Rosa di Poviglio (Poviglio, Reggio Emilia, N Italy; 44°52′21′′ N 10°34′31’’ E, 21 m asl; site chronology: 1550-1170 BC). The dataset was created as part of the National Biodiversity Future Center (NBFC, Palermo, Italy). The site is included in the BRAIN database (https://brainplants.successoterra.net/; site id: NER92)
Palynology from Mediterranean archaeological sites for cultural landscape reconstruction
No full textPalynology is probably the best biological approach to investigate relationships between humans and the environment in the past. The genesis and evolution of cultural
landscapes of the Mediterranean sites is more and more explored by palaeoecologists and archaeobotanists with analyses of on-site and off-site contexts that invariably
contain signs of human presence and activities carried out during millennia of civilizations. The presentation will report in particular on pollen analyses from archaeological sites located in southern Italy. The case studies are selected among interdisciplinary research analyses, with examples of sites from Basilicata (e.g. Pantanello, from the 7th BC) and Sicily (e.g. San Vincenzo di Stromboli, Bronze Age)
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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
