1,720,993 research outputs found
Pisa: da città dell’Auser a città dell’Arno
No full textLa grande mole dei dati archeologici e ambientali georeferenziati raccolti nell’ambito del progetto “MAPPA - Metodologie Applicate alla Predittività del Potenziale Archeologico. L’area urbana di Pisa” rende oggi possibile utilizzare metodi statistici e analisi spaziali per ricostruire in modo abbastanza puntuale il paesaggio umano e naturale in cui si è sviluppata Pisa dall’età romana a quella medievale: uno scenario reso estremamente mutevole dalla presenza di due fiumi, l’Arno a sud e l’Auser a nord del centro abitato.
Estesa fin da epoca etrusca tra i due fiumi, ma orientata prevalentemente verso il fiume settentrionale, l’Auser, proprio nei secoli di passaggio fra la tarda antichità e l’altomedioevo Pisa cominciò a ruotare su se stessa. Volgendo progressivamente le spalle all’Auser, la città cominciò ad ancorarsi sempre più saldamente all’Arno, fino ad acquisire, con la costruzione delle mura tardomedievali, nella seconda metà dell’XI secolo, la fisionomia che ha oggi, con un unico fiume, l’Arno, che la attraversa proprio al centro dell’abitato
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
Associazione di mieloma non secernente e spondilite anchilosante. Descrizione di un caso clinico. ASSOCIATION OF NON-SECRETORY MYELOMA AND ANKYLOSING-SPONDYLITIS - DESCRIPTION OF A CASE
No full textConnections between inflammatory rheumatic diseases and plasma cellular dyscrasias are still discussed. The observation of non-secretory IgA k myeloma occurred in a patient suffering from ankylosing spondylitis has induced us to do some considerations about the possible connections between these diseases and to stress the rarity of such association reported in literature
Le Terme “di Nerone” a Pisa
No full textThe Baths “of Nero”, related to the emperor’s name because of an unjustified medieval tradition, are the only still partially standing building of the Roman town of Pisae. The archaeological investigations, which already started in the mid-16th century, carried out at the end of the 19th century and again in the 40s of the last century, when an archaeological area was created. Despite the several excavations, only a limited part of the Thermal building is known. The complex is differently dated between the last decades of the first century and the second century AD, considering the building techniques and architectural typologies. It is certain, however, that in the second half of the II century AD a member of the Pisan family of the Venuleii financed a restoration or an extension of the Baths as attested by an inscription. In 2017 new archaeological investigations, conducted by the “Civiltà e Forme del Sapere” Department of the University of Pisa, started to solve some of the numerous problems that still remain regarding the chronology, the phases of life, the plan and the function of some rooms of the Thermal complex
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
Vibration Velocity Technique for Sound Reduction Index Measurement
No full textThe Apparent Sound Reduction Index of a partition can be measured according to the method described by ISO 140-4. In many real situations, alternative methods, like the intensity based method and the vibration velocity based method, could be useful. The paper reports further results of a research project aimed at testing the reliability of the vibration velocity measurement based method. The results of the comparison between the measurement techniques for walls without particular problems (like airborne paths, leakages, etc.) indicate a good agreement between the values obtained, in particular for single number quantities. However the velocity technique is useful in the identification of particular problems of sound transmission, in particular to calculate the contribution of the flanking transmission from lateral walls. The velocity method is not yet standardized and, at the moment, could be considered as a survey method. The main difficulties are the estimation of the critical frequency for non homogenous walls like hollow bricks walls, the estimation of the radiation efficiency around and below the critical frequency and the obtainment of reliable experimental data at high frequencies due to the drop in the accelerometer’s resonance frequency
Pisae (Pisa) : Le Terme di Nerone
No full textLe terme di Nerone, legate al nome dell’imperatore per un’ingiustificata tradizione medievale, costituiscono l’unico edificio della Pisa romana che si conservi ancora parzialmente in elevato.
Le ricerche archeologiche, avviate già alla metà del ’500, furono riprese alla fine del XIX secolo e di nuovo negli anni ’40 del secolo scorso, quando furono demoliti gli edifici che nei secoli si erano addossati alle strutture romane e fu creata un’area archeologica. Nonostante i diversi scavi effettuati,
tutt’oggi è nota solo una parte limitata dell’edificio termale.
Il complesso è variamente datato tra gli ultimi decenni del I secolo e il II secolo d.C., sulla base della tecnica edilizia e delle tipologie architettoniche. È certo però che nella seconda metà del II secolo un membro della famiglia pisana dei Venuleii finanziò un intervento di restauro o ampliamento, come attesta un’iscrizione.
Nel 2017 sono state avviate nuove indagini archeologiche, condotte dal Dipartimento di Civiltà e Forme del Sapere dell’Università di Pisa, per risolvere alcuni dei numerosi problemi che ancora permangono sulla cronologia della costruzione, sulle fasi di vita, sulla planimetria e sulla funzione di alcuni ambienti.The Baths “of Nero”, related to the emperor’s name because of an unjustified medieval tradition, are the only still partially standing building of the Roman town of Pisae. The archaeological investigations, which already started in the mid-16th century, carried out at the end of the 19th century and again in the 40s of the last century, when an archaeological area was created. Despite the several excavations, only a limited part of the Thermal building is known. The complex is differently dated between the last decades of the first century and the second century AD, considering the building techniques and architectural typologies. It is certain, however, that in the second half of the II century AD a member of the Pisan family of the Venuleii financed a restoration or an extension of the Baths as attested by an inscription. In 2017 new archaeological investigations, conducted by the “Civiltà e Forme del Sapere” Department of the University of Pisa, started to solve some of the numerous problems that still remain regarding the chronology, the phases of life, the plan and the function of some rooms of the Thermal complex
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