324,677 research outputs found
Perepiska B.K. Zajceva s O. Signorelli (1923-1965)
No full textCorrespondence between Olga Signorelli and the émigré writer Boris Zaitse
Cappella di San Brizio
No full textAppearance of the Antichrist and the Last Judgment, with grisaille work beneath the main scenes illustrating the pagan underworld as described by early poets such as Dante; Two side chapels lie off the main crossing of the cathedral. The Cappella del Corporale, on the north side, was built between 1350 and 1356: it is two bays deep, with quadripartite vaults. The Cappella di S Brizio, a virtually identical structure on the south side, was begun in 1408 and completed in 1444; it was decorated by such artists as Fra Angelico, Benozzo Gozzoli and Luca Signorelli. Fra Angelico finished only two of the vault triangles: Christ as Judge and a gold-backed group of Prophets. The frescoes illustrating the End of the World are well documented. They are Signorelli's most complex and famous work. In 1499 he was contracted to finish the vault, abandoned 50 years before by Fra Angelico; the board liked the result and in 1500 assigned the decoration of the rest of the chapel to Signorelli. It was finished in 1503, with a break in 1502 when funds were lacking. In the scenes, which include the Last Judgement (in several parts, including the Damned, the Appearance of the Antichrist and the Resurrection of the Flesh) Signorelli explored the dramatic possibilities of the nude. By giving the demons near human form, but by colouring them with every shade of putrefying flesh, he made his cataclysmic vision fearful. Through his dynamic use of form and figural energy in the crowded scenes he created active compositional rhythms. Vasari wrote that Signorelli 'showed the way to represent nudes in painting as if alive'. Beneath the main scenes are remarkable small-scale grisaille scenes, which illustrate the underworld as described by pagan poets and Dante (the poets appear in the centre of each group of grisailles). Throughout the chapel the contours are often incised with a stylus; they were probably marked through a cartoon and in the grisailles correspond with the work of assistants, one of whom was his nephew, Francesco Signorelli (d 1559). Source: Grove Art Online; http://www.groveart.com/ (accessed 2/4/2008
Amalia Signorelli, tra contributo critico-analitico e usi sociali dell’antropologia nella società contemporanea
No full textL’articolo ricorda la figura di Amalia Signorelli nel panorama dell’antropologia italiana dal dopoguerra a oggi, il suo legame con Ernesto de Martino e Tullio Seppilli, il suo contributo allo studio delle diseguaglianze della società contemporanea e dei mutamenti culturali, i vincoli col Messico mediati da S. Gruzinski e N. García Canclini, l’impegno nella formazione avanzata e la brillante capacità comunicativa messa a frutto nei media.The article recalls the role of Amalia Signorelli in Italian anthropology since the Sixties to the present day, her relationship with Ernesto de Martino and Tullio Seppilli, her contribution to the study of inequalities in contemporary society and cultural changes, the ties with Mexico mediated by S. Gruzinski and N. García Canclini, the commitment to advanced training and the brilliant communication skills shown in the media
Pre-eruptive volatile (H2O, F, Cl, and S)contents of phonolitic magmas feeding the 3600-year-old Avellino eruption from Vesuvius, southern Italy
No full textThe behaviour of H2O, F, Cl and S prior to and during the Plinian phase of the 3550-year old Avellino eruption was determined by the study of unheated primary glass inclusions and matrix glasses. The fall deposit can be divided into two sub-units on the basis of an abrupt change in colour: a phonolitic white layer at the base and a tephriphonolitic banded grey pumice layer at the top. The original tephriphonolitic magma is always found mixed with the phonolitic magma. Primary glass inclusions were only found in feldspar, amphibole and garnet associated with the white pumice. Glass inclusions in the products of the Avellino Plinian eruption contain a mean of 3.10 +/- 0.74 wt.% H2O, 0.95 +/- 0.15 wt.% F, 0.59 +/- 0.02 wt.% Cl, and 560 +/- 55 ppm S. The concentration of CO2 was below the detection Limit. Coexisting matrix glasses contain similar amounts of halogens but significantly less water (similar to 0.5 wt.%) and sulphur (similar to 100 ppm), suggesting that during the eruption the halogens did not behave as volatiles. Owing to the lack of primary glass inclusions and its hybrid nature, similar conclusions can only be hypothesised for the tephriphonolitic magma on the basis of volatile element distribution in the matrix glasses. Taking into account both our data and data from parental mafic melt inclusions by a previous study by P. Marianelli and co-workers, it has been possible to reconstruct the behaviour of volatiles in the Avellino magmatic reservoir in two stages: (1) variation of volatiles during crystal fractionation; and (2) exsolution of an "excess" gas phase when volatiles reach their solubility limit in silicate melts. The agreement between our data and the solubility limit of chlorine, sulphur and probably water in phonolitic melts at the postulated pressure and temperature (i.e., 100 MPa and 850 degrees C), suggests that such a phase exists. Compared to the other volatiles, fluorine does not exhibit a behaviour (i.e., flat distribution) consistent with the attainment of its solubility limit in phonolites. Using the petrologic method, the minimum output of volatiles during the Plinian phase of the Avellino eruption was hypothesised to be about 2 x 10 6 tons of H2SO4 and 25 x 10 6 tons of H2O. Due to both the presence of an "excess" vapour phase prior to eruption and the assumptions inherent in the petrologic method, the total calculated amounts should be considered as very conservative estimates of volatile outputs during the eruption
The Impact of Financial Crises on Youth Unemployment Rate
No full textThe impact of last financial crisis (2007-08) and subsequent global recession (2008-09) has been deeper on the weakest segments of the labour market. In this paper, we mainly focus on the extent and persistence of the impact of (past and last) financial crises on youth (15-24) unemployment rate. After a review of the existing (theoretical and empirical) literature on the determinants of youth unemployment rate in general and at the occurrence of economic crises, we present empirical estimations on the impact of past financial crises on young workers. We empirically investigate the relationship between financial crises and youth unemployment rate by employing fixed effects panel estimation on a large panel of countries (about 70) around the world for the period 1980-2005. Gender specific effect of crises on young workers is also investigated. To analyse the severity of financial crises for economies at different levels of economic development, we re-estimate our model for sub-samples of high income OECD countries and other economies in the sample. For further robustness check and sensitivity analysis, alternative definitions of crises are considered. The "persistence" of the impact of financial crises for young workers is also investigated. Finally we also estimate the Arellano-Bond dynamic panel, confirming the significance of the results. Young people are far more affected by the employment crises than the elder; long term unemployment for young workers can be harmful and may result in “discouraged workers” effects and social exclusion from labour market. Notwithstanding some peculiarities of the last crisis, our econometric investigations can be useful to better assess its impact on youth unemployment. At the end of the paper, before presenting some final considerations and policy implications, very recent data on youth labour market dynamics are analysed and discussed.crises, labour impact of economic crises, youth unemployment, panel fixed effects.
Local health rules and building regulations: a survey on local hygiene and building regulations in Italian municipalities
No full textIntroduction. WHO has highlighted the need to strengthen the relationship between
health and built environment factors, such as inappropriate housing conditions. Local
Health Rules (LHRs) and Building Regulations (BRs) are tools which provide safety and
building hygiene in construction practices. Currently the Italian Government is considering
to establish a National Building Regulation and, related to the following purpose,
this paper presents a survey on the status of adoption and updating of LHRs and BRs in
Italian municipalities.
Methodology. The current Italian state of LHRs, BRs and Municipal Development
Plans (MDPs) have been examined by a survey considering a sample of about 550 cities,
with different demographic and geographic features, starting from the previous research
work by Signorelli et al. (1999).
Results. The analysis underlines a serious shortage of updated LHRs, especially in small
and medium-sized municipalities whereas BRs and MDPs are widespread. Only 30% of
them are previously approved and validated by Local Health Authorities.
Conclusion. Starting from a survey, the present scenario of Building Regulations requires
the introduction of further performance guidelines instead of normative ones and,
therefore, the current actions to give rise to a National Building Regulation could be
integrated by building hygiene contents of LHRs
AMBIENTI INDOOR
No full textLa Costituzione Italiana ha sancito che la salute, oltre a essere un valore individuale di ogni cittadino, è oggetto di tutela da parte della Repubblica e dello Stato, in quanto riveste un fondamentale interesse collettivo. Alla base di questa affermazione risiede un fatto incontrovertibile: un Paese di persone sane è di base un Paese culturalmente, socialmente ed economicamente più avanzato. La piena salute permette, infatti, di realizzare attività formative e professionali, dalle quali deriva rapidamente un benessere generalizzato.
L’architettura che definisce, progetta e realizza i luoghi del vivere e del lavorare deve quindi tener conto dell’esigenza funzionale degli spazi destinati alla vita individuale e collettiva, ma anche dell’esigenza di tutelare la salute. L’uomo, infatti, trascorre circa il 90% del tempo in ambienti indoor.
La tutela della salute diventa quindi uno degli obiettivi primari della progettazione edilizia, insieme alla protezione dal clima esterno, al conseguimento di un microclima interno adeguato alle funzioni che si svolgono, alla funzionalità degli ambienti, alla qualità degli spazi, dei materiali e delle soluzioni tecnologiche, oltre che alla tutela della privacy e della sicurezza. Queste regole generali devono poi essere articolate in relazione alla tipologia degli edifici, così come classificati dal D.P.R. 421 del 199
Possible usage of Cherenkov photons to reduce the background in a 136Xe neutrino-less double-beta decay experiment
No full textOne of the main backgrounds in the search for 136Xe nutrino-less double-beta decay (0νββ) is the signal from Compton scattering of photons with energy around the decay endpoint at 2.458 MeV. Electrons in liquid xenon emit scintillation light at 178 nm. Liquid xenon being extremely transparent to ultra violet light it is in principle possible to discriminate one particle events (such as the Compton background) from two particle events (double-beta decay signals) by the amount of Cherenkov radiation emitted. The identification of the Cherenkov photons may be performed by looking at the different time structure of the signal with respect to the scintillation, by selecting photons with wavelengths larger than the typical Xenon scintillation light, and by the different emission topology. A proof-of-principle study of this approach is presented here together with preliminary studies on possible detectors for the two light components at different wavelengths
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