169,971 research outputs found
Le facciate del quartiere di Piccapietra a Genova: tutela e valorizzazione di un patrimonio del secondo Novecento.
No full textThe Italian architecture of the second half of XX century has been studied by academics and administrations with more interest since the last decades. Nevertheless, these architectures often suffer of poor conservation condition, due to the difficult identifying this relatively young and wide production as heritage to be protected. In this already complex frame, the external surfaces of a building become one of the first objects to modify: element of connection and separation between outside and inside, witness of political, social or artistic message, the facade of a building is in fact one of the first element exposed to natural and anthropic deterioration forces. Therefore, this work focuses on the facades of Piccapietra, genoese district demolished and re-build between Fifties and Seventies. In fact, the functional obsolescence of the whole district and the specific deterioration of external surfaces, could - as already happened - justify future facades replacement or modification, thus compromising its historical and architectural value. Starting from a brief focus on Second half of XX Century architectures conservation problems, the article will focus on planning and construction of the modern Piccapietra, on material and technological characteristics of its external surfaces, in order to inaugurate a new path of knowledge and protection for this heritage
Memoria di lavoro, ampiezza e profondità del vocabolario: Quale ruolo nella comprensione del testo?
No full text
The Dilemma of the Ethnic Community: The Italian Immigrant Women between "Preservation" and "Americanization" in the Early Twentieth Century
No full textGoing 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
L'uso del GIS come strumento per la valorizzazione dell'architettura del Novecento: dalla scala del territorio a quella dell'edificio
No full textMitomycin 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
Cinque Terre: terraced landscape preservation and tourism sustainability
No full textCinque Terre terraced landscape represents an extraordinary example of the peculiar relation between humankind and nature. For centuries its inhabitants shaped the territory, building a farmed terraced system that has characterized the image and identity of this
land until today. This territory, extremely vulnerable to natural disaster and anthropic degradation, has been involved in several actions aimed at its protection and safeguard since the 1980s, through regional laws supporting local agriculture and terraces preservation. The site was inscribed in the World Heritage List as a cultural landscape in 1997 and Cinque Terre National Park was established in 1999. Through the analysis of the existing regulations context an related requirements, touristic data, promotion and strategies, this paper aims to explore the relationship between mass tourism effects and landscape vulnerability, focusing on the conflict existing between sustainability declared, or sought, by the authorities and the risks related to land consumption
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
XBT, ARGO Float and Ship-Based CTD Profiles Intercompared under Strict Space-Time Conditions in the Mediterranean Sea: Assessment of Metrological Comparability
No full textAccurate measurement of temperature and salinity is a fundamental task with heavy
implications in all the possible applications of the currently available datasets, for example,
in the study of climate changes and modeling of ocean dynamics. In this work, the reliability
of measurements obtained by oceanographic devices (eXpendable BathyThermographs, Argo floats
and Conductivity-Temperature-Depth sensors) is analyzed by means of an intercomparison exercise.
As a first step, temperature profiles from XBT probes, deployed by commercial ships crossing the
Ligurian and Tyrrhenian seas during the Ship of Opportunity Program (SOOP), were matched
with profiles from Argo floats quasi-collocated in space and time. Attention was then paid to
temperature/salinity profiling Argo floats. Since Argo floats usually are not recovered and should last
up to five years without any re-calibration, their onboard sensors may suer some drift and/or oset.
In the literature, refined methods were developed to post-process Argo data, in order to correct the
response of their profiling CTD sensors, in particular adjusting the salinity drift. The core of this
delayed-mode quality control is the comparison of Argo data with reference climatology. At the
same time, the experimental comparison of Argo profiles with ship-based CTD profiles, matched
in space and time, is still of great importance. Therefore, an overall comparison of Argo floats
vs. shipboard CTDs was performed, in terms of temperature and salinity profiles in the whole
Mediterranean Sea, under space-time matching conditions as strict as possible. Performed analyses
provided interesting results. XBT profiles confirmed that below 100mdepth the accordance with Argo
data is reasonably good, with a small positive bias (close to 0.05 °C) and a standard deviation equal
to about 0.10 °C. Similarly, side-by-side comparisons vs. CTD profiles confirmed the good quality of
Argo measurements; the evidence of a drift in time was found, but at a level of about E-05 unit/day,
so being reasonably negligible on the Argo time-scale. XBT, Argo and CTD users are therefore
encouraged to take into account these results as a good indicator of the uncertainties associated with
such devices in the Mediterranean Sea, for the analyzed period, in all the climatological applications
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