169,734 research outputs found
Castel di Pietra (Gavorrano – GR): relazione preliminare della campagna 2001 e revisione dei dati delle precedenti
No full textcura dell'articolo con testi di M. Belli, C. Cicali, C. Citter, M. Goracci, A. Magazzini, M. Pistolesi, H. SAlvadori, A. Sebastiani, E. Vaccar
Monete e zecche nella Toscana del Trecento. Catalogo della mostra (Massa Marittima, 13 maggio 2017 - 14 gennaio 2018)
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Ubi dicitur Millano. Il castello di Scopetulo (San Miniato, PI): nuovi dati dalla campagna di scavo 2015
No full textNell’articolo sono presentati i risultati della campagna di scavo 2015 nel sito di Migliana (Balconevisi, San Miniato-Pisa) e dello studio dei reperti ceramici, numismatici e metallici, oltre ad un approfondimento della storia dell’area in età post medievale, basato sulla lettura del Catasto terreni realizzato tra gli anni Venti e Trenta del XIX secolo.
I dati raccolti permettono di iniziare a definire le forme di occupazione dell’altura a partire dal X–XI secolo, quando il sito, mai frequentato prima, viene occupato da una torre e da strutture in legno, delle quali rimangono alcune buche di palo, poste all’interno di un’area delimitata da un taglio nel substrato geologico, forse frutto di una regolarizzazione del pendio per la costruzione di una struttura di recinzione.
Queste evidenze sono probabilmente associabili al castello di Scopetulo, attestato dal 1004, come proprietà dei Gherardeschi, che lo utilizzarono per controllare le proprietà curtensi incardinate sulla vicina pieve di S. Maria di Quaratiana e verosimilmente le sue decime.
L’insediamento, ormai al di fuori degli interessi degli stessi Gherardeschi, viene poi quasi rifondato, probabilmente per iniziativa del comune di San Miniato, tra fine XII e inizio XIII secolo: è aperta una strada che taglia in due il crinale del poggio e ai suoi lati sono costruiti nuovi edifici con un piano seminterrato, con pareti in terra rivestite da laterizi prodotti in una fornace creata subito fuori il villaggio, che poi viene dotato anche di una chiesa.
L’abbandono del castello si data tra la fine del XIII e l’inizio del XIV secolo.In this paper the results of the 2015 archaeological excavation in Migliana site (Balconevisi, San Miniato-Pisa) are presented with the study of pottery, numismatic and metal finds. The analysis of the “Catasto terreni” (beginning of XIX century) also allows to reconstruct the history of this territory in Post Medieval Age.
The collected data show a first occupation of the site in the X-XI century, when it is occupied by a tower and some wooden structures, within an area bounded by a cut in the geological substrate, perhaps the result of a regularization of the slope for the construction of a fence structure.
The archaeological remains are probably associated to the “Scopetulo” castle, mentioned for the first time in written sources in 1004 as the property of the Gherardeschi, who used it to control the curtes hinged on the nearby church of S. Maria di Quaratiana and probably its tithes.
The settlement is almost refounded between the end of the XII century and the beginnig of the XIII century, probably by the near castle of San Miniato: a road that cuts through the crest of the hill is open and to its sides new buildings and a Church are built. The houses are partially dug into the geological substrate and have earthen walls covered with bricks that are produced in a furnace created just outside the village.
The abandonment of the castle is dated between the late XIII and the beginning of the XIV century
Experimental tribe: a general platform for web-gamig and social computation
No full textIn the last few years the Web has been progressively acquiring the status of an in- frastructure for “social computing” that allows to coordinate the cognitive abilities of human agents in online communities, and steer the collective user activity to- wards predefined goals. This general trend is also triggering the adoption of web- games as a very interesting laboratory to run experiments in the social-sciences and whenever the contribution of human beings is crucially required for research purposes. This paper introduces Experimental Tribe (ET), a novel general purpose web-based platform for social computation
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
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