1,721,095 research outputs found
Antonio Cadeddu, Dal Mito alla Storia. Biologia e medicina in Pasteur (Milano : Franco Angeli, 1991), «Filosofia»
No full textMilanesi Claudio. Antonio Cadeddu, Dal Mito alla Storia. Biologia e medicina in Pasteur (Milano : Franco Angeli, 1991), «Filosofia». In: Revue d'histoire des sciences, tome 46, n°4, 1993. Recherches leibniziennes. pp. 532-534
La Tomba Etrusca delle foglie d'oro nei pressi dell'area termale di Petriolo: tra Archeobotanica e storia
No full textI vegetali celano conoscenze e memorie appartenenti a culture e tempi lontani. Sulle piante sono fiorite leggende e credenze popolari che narrano delle loro origini, delle loro proprietà e dei loro impieghi; addirittura alcune di esse mantengono impronte umane in legami che spesso condividono origini divine, soprannaturali e mitiche. Le varietà erbacee, arbustive e arboree si sono o sono state adattate ad ambienti manipolati da una persistente attività umana e l’Archeobotanica cerca di ricostruire a ritroso quest’antico legame
Palaeobotanical evidence and SSR DNA analysis of archaeological apple seeds found in first century winery of Roman farm on Elba Island (Italy)
No full textIn the late republican Roman period (2nd-1st century BC) a Roman farm was
established at San Giovanni, on the Island of Elba. About 6th century BC the area had
hosted intense metallurgical activity (reduction of ion ore). In 1st century AD the farm
was destroyed by fire. Since 2012, the remains of walls defining five rectangular areas
have been uncovered. The first contained eight broken amphorae used to store,
conserve and transport beverages. Palaeobotanical analysis of set layers of the
archaeological site were performed. Palynological observations showed little pollen
and major presence of fungal spores and non-pollen objects typical of moist soil,
stagnant water and heavy human impact. Anthracological analysis revealed plants
useful for reconstructing the palaeoecological characteristics and human attitudes of
the period. In the bottom of amphorae protected by a crust of burnt soil, two sublayers
of deposition and a compact layer of mud and organic material, we found about 500
well conserved apple seeds, which when compared with contemporary seeds showed
morphological affinities with Malus sylvestris. Phenotypic study and genetic analysis of
genomic DNA with SSR molecular markers were performed against seeds of known
contemporary varieties of Malus sylvestris and Malus domestica as controls
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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