1,359,905 research outputs found
«Venne a la porta, e con una verghetta / l’aperse»: l’arma angelica e la conversio spirituale nella Commedia
No full textJohn Milton, Poemata. Poesie latine greche,italiane, a cura di Giorgio Maselli
No full textEdizione completa dei versi di Milton in latino greco e italiano, corredati da Introduzione, Testimonia,Dizionario onomastico, Tavola di raccordo con edizione Columbi
Un percorso circolare. Titina Maselli dalla congiuntura pop agli ultimi anni
No full textIl contributo ripercorre la seconda parte dell'opera di Titina Maselli, avviata alla fine degli anni Cinquanta e soprattutto evidente a partire dagli anni Sessanta. Si esamina il suo inserimento in una congiuntura pop, evidenziato in occasione della sua partecipazione alla biennale del 1964 con Greta Garbo, Bar a New York e New York. La fotografia si conferma una fonte visiva centrale e originaria nel suo percorso pittorico, così come l'apporto del futurismo per il vivace cromatismo di colori puri e le stratigrafie di immagini dal forte dinamismo. Il testo è inserito nel catalogo della prima retrospettiva romana di Titina Maselli in occasione del centenario della nascita, tenutasi al Casino dei Principi di Palazzo Torlonia e al Museo Laboratorio di Arte Contemporanea dell'Università La Sapienza
Why so few students do maths and science. CEPS Policy Brief No. 313, 10 January 2014
No full textPolicy-makers often fret about the low number of university graduates in the fields of science, technology, engineering and mathematics (STEM). Proposed solutions often focus on providing better information for students and parents about the employability or average wages of different fields to emphasise that STEM professions pay. This paper argues that, from a personal point of view, students are actually making rational decisions, if all benefits and costs are factored into the equation. The authors conclude, therefore, that public policy needs to change the incentives to induce students to enter these fields and not just provide information about them
A probabilistic model for the estimation of declining discount rate
No full textIn the Cost-Benefit Analysis (CBA) the traditional discount procedures determine a significant contraction of the financial terms that are furthest over time. This contraction is not acceptable in the economic evaluation of public projects with inter-generational effects, since it causes little appreciation of the net benefits for the future generations. The use of time-Declining Discount Rate (DDR) represents a possible solution to the problem. Following a critical analysis of the main methodologies that the theory describes, the study proposes an innovative model for the estimation of DDR. The model, based on principles widely recognized in literature, uses probabilistic laws and returns a simple-use forecasting algorithm, as uses economic and demographic data easy to find. The implementation for the Italian economy makes it possible to validate the model and makes it clear how significantly the results of the CBA can vary if a declining discount rate instead of a time-invariant rate is chosen. The important political repercussions on the entire allocation process of public resources demonstrate the effectiveness of hyperbolic discount procedures, suggesting to distinguish between constant discount rates for the evaluation of projects with intra-generational effects and time-declining discount rates for interventions with inter-generational implications
Orthodontic correction of an ectopic mandibular first permanent molar: A case report
No full textEctopic eruption of mandibular first molar is a rare clinical problem. It is one result of an improper balance in the forces of growth and eruption. A case of ectopic eruption of the mandibular first permanent molar is described and the technique for repositioning it is showed
Sustainability indicators for the economic evaluation of tourism investments on islands
No full textThe sustainable tourism development is often a key element for the enhancement of island states. The fragility and the environmental, social and economic vulnerability that characterize these territories make the need to integrate the multiple aspects of sustainability into the decision-making processes concerning the definition of plans and programs of investment in the tourism sector increasingly urgent. Thus, the aim of the work is to build a dataset of sustainability indicators classified and weighed according to the subsequent characterization of a multi-criteria evaluation model. This dataset is obtained by defining an analysis procedure aimed at: selecting scientifically valid indicators, readily available by the analysts and easy to interpret by stakeholders; weighing the indicators themselves based on criteria shared in the literature; taking into account the uniqueness of the territorial reference system. The evaluation protocol proposed is substantiated in the subsequent steps of selection, classification, weighting and ranking of sustainability indicators for the analysis of tourism projects on the island. Innovative elements essentially concern weighting operation. In fact, the weight of each indicator is a function of several evaluation criteria and is estimated by using both statistical analysis methods and analytic hierarchy processes. The output of the study, consisting of the dataset of sustainability indicators, is a prerequisite for the subsequent characterization of a multi-criteria evaluation model able to select investment projects that balance the environmental, economic and social specificities of the island. This can determine greater effectiveness in the allocation processes of both public and private resources
Radiative transfer effects on the Lya forest
No full textStrong observational evidence for a fluctuating ultraviolet background (UVB) has been accumulating through a number of studies of the HI and HeII Lyα forest as well as accurate intergalactic medium (IGM) metallicity measurements. UVB fluctuations could arise both from the inhomogeneous distribution of the ionizing sources and/or from radiative transfer (RT) through the filamentary IGM. In this study we investigate, via numerical simulations, the role of RT effects, such as shadowing, self-shielding and filtering of the ionizing radiation, in giving rise to a fluctuating UVB. We focus on possible detectable signatures of these effects on quantities derived from Lyα forest spectra, as photoionization rate fluctuations, η(≡NHeII/NHI) parameter distributions and the IGM temperature at z~ 3. We find that RT induces fluctuations up to 60 per cent in the UVB, which are tightly correlated to the density field. The UVB mean intensity is progressively suppressed toward higher densities and photon energies above 4 Ryd, due to the high HeII opacity. Shielding of overdense regions (Δ>~ 5) from cosmic HeII ionizing radiation produces a decreasing trend of η with overdensity. Furthermore, we find that the mean η value inferred from HI-HeII Lyα forest observations can be explained only by properly accounting for the actual IGM opacity. We outline and discuss several implications of our findings
MU students Dream Girl Kelly Wiley (kl) & Mia Maselli (r)
No full textMU Dream Girl Kelly Wiley (l) and Mia Maselli (r) , both freshmen, candidates for MU calendar, b&w. Attafched caption resds: Dream Girl Kelly wiley, a freshman from Madison, Wv., Kelly, far left will also be the cover girl for the calendar. Mia Maselli, right, a Chas., WV freshman has entered the competition.https://mds.marshall.edu/parthenon_photo_morgue/1495/thumbnail.jp
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