392 research outputs found
ON THE ABSORBABILITY OF HERD BEHAVIOUR AND INFORMATIONAL CASCADES: AN EXPERIMENTAL ANALYSIS
No full textA theory is said to be fully absorbable whenever its own acceptance by all of the individuals belonging to a certain population does not question its predictive validity. This accounts for strategic equilibria and can be related to the logic underlying convergence of behaviour and intentional herding in sequential games. This paper discusses the absorbability of informational cascades’ theory by bounded rational decision-makers and analyses whether providing individuals with theoretic information on informational cascades affects overall probability of herding phenomena to occur as well as whether an incorrect cascade can be reversed because of bounded rational adapting of the theory’s prescriptive
Et nunc sequimur in toto corde: riti e cerimonie di monacazione nei chiostri napoletani fra XVII e XVIII sec.
No full textIl saggio si concentra sulla ricostruzione delle liturgie di monacazione in uso presso i monasteri femminili napoletani fra Sei e Settecento. La liturgia di professione religiosa rappresentava una trasposizione sul piano mistico del rito matrimoniale. Al pari di una lussuosa festa nuziale e in linea con le forme di rappresentazione della religiosità dell’epoca, la monacazione costituiva un evento fastoso e un’occasione di mondanità, festeggiata tramite cortei sontuosi, ricchi ornamenti, spettacoli teatrali e musicali. La consuetudine di festeggiare le fanciulle che prendevano il velo con la composizione di messe, cantate sacre, oratori è diffusa ed è documentata in diverse fonti napoletane. Il grado di fastosità della cerimonia contribuiva a rendere visibile il prestigio sia della comunità monastica in cui la novizia entrava sia della novizia stessa e della sua famiglia di origine
Staging/In scena
No full textWhat does being canonic mean for a dramatic text? Why is a text such as "Six characters in Search of an Author, a text that broke radically with the traditional structure of drama, expressing the crisis within fundamental categories of Westernthought, considered canonic? The author analyses the problem in two joint-text essays that accompany Pirandello's work, from the perspectives of ideas and that of the history of the dramatic form and performance: "inside the text" and "staging".The book is the first of a series of volumes designed to put together the pieces of an open mosaic, which has contributed significantly to the building and expression of the European consciousness
inside the text/dentro il testo
No full textWhat does being canonic mean for a dramatic text? Why is a text such as "Six characters in Search of an Author, a text that broke radically with the traditional structure of drama, expressing the crisis within fundamental categories of Westernthought, considered canonic? The author analyses the problem in two joint-text essays that accompany Pirandello's work, from the perspectives of ideas and that of the history of the dramatic form and performance: "inside the text" and "staging".The book is the first of a series of volumes designed to put together the pieces of an open mosaic, which has contributed significantly to the building and expression of the European consciousness
Voluntary contributions with imperfect information: An experimental study
No full textPublic goods experiments, Second-price auctions, Imperfect information, Risk, C72, C92, D80, H41,
Pedogenic radon fluxes predictions from geochemical data and gamma ray: The Campania region experiment
No full textThe products of the natural decay of uranium-238, an unstable isotope of a radioactive element almost ubiquitous in geological materials, include radon-222 (Rn-222) and radium-226 (Ra-226). Rn-222 has a half-life of 3.8 days and its decay products (progeny) are represented by further radioactive isotopes of polonium (Po-218, Po-214, Po-210), bismuth (Bi-214, Bi-210) and lead (Pb-214, Pb-210).
Radon (mostly Rn-222), abundant in igneous rock and volcanic soils, is the main source of natural radiation to which human beings can be exposed during their life and it is considered the second indirect leading cause of lung cancer after cigarette smoking. In fact, while radon is an inert gas, his progeny is electrically charged and can adhere to airborne particles. If inhaled, Rn-222 can decay in its progeny and particles can deposit in the lungs and irradiate brachial tissue leading to lung cancer in the long run.
In Campania, a region located on the south-western sector of the Italian peninsula whose territory is mostly characterized by the presence of volcanic lithotypes and sediments, in 2003 an intensive gamma-ray spectrometry survey was performed, for a total of 2396 measurements stations. In addition, during several sampling campaigns concluded in 2015, a total of 3822 topsoil samples were collected over the whole territory. Radiometric and geochemical compositional data were elaborated to estimate the potential fluctuation of Rn-222 in the soil of Campania region.
Terrestrial Gamma Dose Rate (TGDR), which represents the gamma-radiation emitted by the decay of naturally occurring radioactive nuclides present in the Earth’s crust, is considered a good proxy to determine the pedogenic Rn-222 flux. The K, Th and U soil concentrations and K-40, U-238 and Th-232 activity values, acquired during the two different environmental prospecting campaigns reported above, through a series of empirical relationship, were used to calculate the TGDR at each soil sampling and gamma radiation measurement location, with the final purpose of quantifying the amount of Rn-222 flux from the ground. Flux data generated were mapped for each individual dataset and the resulting distribution patterns and values were compared.
A regression analysis was performed to quantitatively assess the functional relationship among the flux data determined from the gamma radiation and the ones determined from geochemical data. For the inner part of the region, some strong discrepancies among the flux maps roughly correspod with the presence of several quaternary active faults which could facilitate the rising of gases (probably including CO2 as a carrier) from the deepest geological layers. For the outer part of the region, where volcanic complexes are located (i.e. Mt. Somma-Vesuvius, Mt. Roccamonfina, Phlegrean Fields), discrepancies could be explained by the presence thick layers of volcanic rocks/sediments below the alluvial sandy soils
Higher Education Instruments and Smart Specialisation Innovative Industrial Doctorates and Higher Technical Institutes in Puglia
No full textUniversities have been mainly included in the S3 debate as creators or vectors of knowledge, their higher education mission has been somewhat overlooked. For this reason, in March 2016, the Joint Research Centre of the European Commission has started a project on the role of Higher Education in Smart Specialisation (HESS). This document reports the action-research activities conducted under the HESS project in the region of Puglia (IT). The authors explored two instruments at the opposite end of the higher education spectrum: ●Istituti Tecnici Superiori (ITSs), i.e. Higher Technical Institutes, a form of technology-based vocational education and training.●Innovative Industrial Doctorates (IIDs)1. These new instruments have not been explicitly taken into account during the development and early implementation of the strategy; however, it has become increasingly important to reflect on the process of human capital creation for S3. The two instruments appear suited to this reflection as they implement curricula designed in collaboration with the local private sector and with an explicit focus on technological development and employability. The report explores the challenges and opportunities ITSs and IIDs pose, as a first step to understand their potential contribution to Smart Specialisation
Da Benedetto da Maiano a Felice Palma: per un riesame del Crocifisso in cartapesta del Capitolo di Santa Maria del Fiore
No full textPotentially harmful elements and polycyclic aromatic hydrocarbons in the soils of Acerra, southern Italy
No full textIn recent years, Campania region in southern Italy has been subject to the attention of media for the alleged wide-scale contamination of an area with an original agricultural vocation interested, nowadays, by the presence of high environmental impact industrial activities and uncontrolled waste dumping. Often dumped waste, specially tyres and other materials containing metals, are also illegally burned in the open countryside by criminal people to recover second raw material to resell. Due to this infamous practice, the territory, around the town of Acerra has been informally renamed as “Land of Fires”. Furthermore, Acerra together with the small towns of Marigliano and Nola represent the vertices of an ideal polygon defined by Senior and Mazza (2004) as the “Triangle of death”. According to these authors, the population living in the area, heavily exposed to toxic and carcinogenic substances, is, on the average, affected by a incidence rate of cancer and affine pathologies higher than the regional average.
With the aim of defining the actual environmental conditions of the Acerrra area and its surroundings, a total of 121 topsoils samples were collected across the whole area to determine the concentrations of some potentially toxic elements (PTEs) (i.e. As, Be, Cd, Co, Cr, Cu, Hg, Ni, Pb, Sb, Se, Sn, Tl, V e Zn). In addition, further 33 soil samples were collected, at a lower sampling density, to determine concentrations of 16 among the most harmful compounds belonging to the family of polycyclic aromatic hydrocarbons (PAHs). Concentrations of PTEs and PAHs were compared with the guidelines established for residential lands by Italian Environmental Law (D.lgs. 152/2006) (IEL) and the first results showed that several elements (mainly Tl, Be, Sn and to a lesser extent V, Cu, Zn, Pb) and compounds (i.e. benzo(a)pyrene, benzo(ghi)perylene, indeno(123,cd)pyrene and benzo(b)fluoranthene) pose an hazard for exposed local population. Specifically, the north-eastern sector of the study area appears to be characterized by low hazard, while the area south of Acerra is associated with a significant environmental hazard since, on the average, more than 7 contaminants, among the ones considered, show values exceeding the guidelines values established by IEL. A relevant hazard is also recorded in correspondence with the urban centres of Acerra, Pomigliano, Brusciano and Marigliano, where an higher number of contaminants, including Cu, Pb, Zn, benzo(a)pyrene, benzo(ghi)perylene and indeno(123,cd)pyrene, exceed the relative guidelines.
The so-called diagnostic ratios were used for the discrimination of the emission sources relating to PAHs. Results obtained show that, in almost the whole area, most of the compounds in soil derive from pyrogenic processes, that is formed when organic matter is exposed to high temperatures in anoxic conditions, rather than petrogenic processes.
A Preliminary Quantitative Risk Assessment carried out using the total concentrations of PAHs, expressed as benzo(a)pyrene-equivalent concentrations, allowed to estimate the carcinogenic risk for the resident population deriving from the exposure to these compounds. Near urban centers (mainly Acerra), as regards children, the risk associated with an increase of cancer incidence resulted to be 2 in a million people, while for adults it resulted in 7 in a million: the admissible threshold for individual risk is normally set at 1 case in a million
Perspectives sur Focillon. Critique de: Annamaria Ducci, Henri Focillon en son temps. La liberté des formes, Presses universitaires de Strasbourg, collection “Historiographie de”, Strasbourg 2021
No full textInternational audienceThe author reviews the first monograph devoted to Henri Focillon (1881-1943), written by Annamaria Ducci. This intellectual biography, based on numerous archives and works, places the art historian in a wider historiographical context and gives an in-depth reading of several of his texts
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