1,721,052 research outputs found
Utilizzo della diversità genetica delle forme selvatiche per il miglioramento genetico del fagiolo comune (Phaseolus vulgaris L.)
No full textLa meraviglia e il meraviglioso nella letteratura ellenistica
No full textL’elaborato esplora il concetto di meraviglia e di meraviglioso nell’opera dei principali autori ellenistici del III sec. a.C., a partire dalle definizioni teoriche di questa emozione fornite da Platone e da Aristotele. La tesi fondamentale del lavoro è che in questi testi la meraviglia rappresenti uno strumento retorico-letterario per indagare le possibilità epistemologiche della letteratura alla luce delle critiche al valore conoscitivo della poesia avanzate dai filosofi del IV sec. a.C. In questo modo è possibile ricostruire non solo la concezione letteraria propria dei singoli autori di questo periodo, ma anche il dibattito allusivo da essi intrattenuto con i principali filosofi dell’antichità. Dopo un capitolo introduttivo su Platone e Aristotele, l’elaborato prende in considerazione le opere di Teopompo, Callimaco, Arato e Apollonio, con sezioni introduttive ai singoli capitoli dedicate agli storici del IV secolo, agli autori del genere paradossografico, ai filosofi ellenistici e agli storici di Alessandro. Il lavoro cerca così di colmare una lacuna nella ricostruzione della poetica ellenistica, mostrando l’ampiezza degli interessi culturali e filosofici di questi autori. This dissertation explores the concept of wonder and the marvellous in the work of the main Hellenistic authors of the 3rd century BC, starting from the theoretical definitions of this emotion provided by Plato and Aristotle. The fundamental thesis of the work is that in these texts wonder represents a rhetorical-literary tool to investigate the epistemological possibilities of literature in the light of the criticism of the cognitive value of poetry advanced by the philosophers of the 4th century BC. In this way, it is possible to reconstruct not only the literary conception proper to the individual authors of this period, but also the allusive debate they had with the main philosophers of antiquity. After an introductory chapter on Plato and Aristotle, the dissertation considers the works of Theopompus, Callimachus, Aratus, and Apollonius, with introductory sections to each chapter devoted to the historians of the 4th century, the authors of the paradoxographical genre, the Hellenistic philosophers and the historians of Alexander. The work thus attempts to fill a gap in the reconstruction of Hellenistic poetics, showing the breadth of the cultural and philosophical interests of these authors
The Argonauts on Mount Dindymon
Full text linkThis article explores the foundation of Cybele’s cult by the Argonauts on Mount Dindymon as narrated by Apollonius of Rhodes in Book 1 of the Argonautica. It will be maintained that the differences between the ritual described by the poet and the
cultic practice attested to in the tradition can be explained as a reference to the myth of Dionysus’ purification in Phrygia, which was also staged in the Grand Procession of Ptolemy II. In particular, the presence of a Dionysiac sub-pattern will be detected
in the mention of the vine used for carving the statue of Cybele, which has no parallel in other sources concerning the goddess and which is linked to Dionysus in other Hellenistic poems about cult statues. It will be claimed that the reference to the Dionysiac myth may hide a political message connected with Ptolemaic imperialist ambition in Anatolia and Greece in the 3rd century BC
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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
Full text linkWe 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
INTROGRESSION FROM MODERN HYBRID VARIETIES TO LANDRACE POPULATIONS OF MAIZE (ZEA MAYS L.) IN CENTRAL ITALY
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