1,720,979 research outputs found
Au-dessous de la ville de Hourlier: relevés géoradar sur la place du Campo
No full textIl presente contributo riporta i risultati di un’indagine georadar estesa sull’intero sottosuolo di piazza del Campo a Siena. Il confronto con le fonti documentarie, cartografiche e iconografiche ha consentito di attribuire un significato storico alle evidenze strutturali evidenziate dallo strumento. Ci riferiamo, in particolare, alla rete dei bottini, acquedotti sotterranei, in buona parte ancora oggi funzionanti, costruiti prevalentemente tra il Duecento e il Trecento. Dalle indagini non sono emerse, inoltre, evidenze tali da far pensare ad un tessuto urbano preesistente alla piazza. Ciò conferma le ipotesi storiografiche più recenti circa la trasformazione diretta, tra XII e XIII secolo, di un declivio naturale posto al di fuori della cinta muraria altomedievale in uno spazio pubblico aperto e adibito a mercato, via via circondato da edifici che tra il Due e il Trecento si distribuirono intorno al perimetro. La riconfigurazione trecentesca della piazza del Campo dovette sfruttare, pertanto, uno spazio aperto già adibito a funzione pubblica.This paper reports the results of a georadar survey extended on the whole subsurface of Piazza del Campo in Siena. The comparison with documentary, cartographic and iconographic sources has allowed to attribute a historical meaning to the structural evidences highlighted by the instrument. We refer, in particular, to the system of bottini, underground aqueducts, for the most part still functioning today, built mainly between the thirteenth and fourteenth centuries. From the investigations have not emerged evidence such as to suggest a pre-existing urban fabric to the square. This confirms the most recent historiographical hypotheses about the direct transformation, between the XII and XIII centuries, of a natural slope outside the early medieval walls into an open public space used as a market, gradually surrounded by buildings that between the two and the fourteenth century were distributed around the perimeter. The fourteenth-century reconfiguration of the Piazza del Campo had to exploit, therefore, an open space already used for public functions
Possibilità di impiego delle Unità Mobili Medico-Chirurgiche negli interventi di protezione civile.
No full text
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
Archaeometric analysis of building mortars used in the historic centre of Siena (Italy) between the 13th and 16th centuries
No full textThis work is part of a broader research concerning the ancient mortars used to build the historic centre of Siena (Italy). It is focused on the archaeometric analysis of twenty-three mortars samples selected from well-dated 13th–16th centuries masonries belonging to five monumental buildings (Cathedral, City Hall, city walls, Medicean Fortress, and Santa Maria della Scala hospital). The main compositional and technological features of the mortars were determined by means of thin section analysis with polarized light microscopy and chemical analyses of lumps with ICP-OES and ICP-MS. After a thorough documentary research, reference samples of selected rocks (Cavernous Limestone, Montagnola Senese Marbles, Alberese Limestone) were gathered from the Montagnola Senese area and from the southern sector of Chianti hills (west and north east of Siena, respectively) and analysed with the same chemical techniques, targeting the identification of possible types of raw materials used for the production of the lime binders. The study led to a first compositional and technological database of the ancient Sienese mortars and allowed verifying the change over time of the supply of raw materials for binder production. Mortars dating back before the middle of the 15th century were obtained with aerial lime binders, whereas in later years natural hydraulic lime binders prepared from impure limestones were preferentially used. As regards the provenance of stones for lime, the obtained data suggest a transition over time from the exploitation of rocks from Montagnola Senese (preferred during the Middle Ages for lime production) to a prevalent use of Alberese Limestone from southern Chianti hills after the middle of the 15th century. Throughout the entire period under examination, sandy aggregates were obtained from Pliocene sea deposits cropping out around the city
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
