120,089 research outputs found
Dal non-luogo della relazione massmediatica al qui-ora del rapporto personale
No full textil rapporto tra Scienza e Art
L’Uomo e la Scienza alla ricerca di una nuova consapevolezza
No full textfilosofia della Scienza e la scoperta del "neurone specchio
Three new hybrids of Ophioglossum (Ophioglossaceae) from Monte Pisano (Tuscany, Central Italy)
No full textBased on general morphology, spore measurements and ornamentation (scanning electron microscope), genome size estimation, and molecular systematics (trnL-trnF IGS), we show the extreme systematic complexity within the European representatives of the genus Ophioglossum. In particular, three hybrids from Tuscany are described: the tetraploid O. × pierinii Peruzzi, Magrini, Marchetti & Viane, seen as the hybrid between diploid O. lusitanicum L. and hexaploid O. azoricum C.Presl; the tetraploid O. × giovanninii Peruzzi, Pierini, Magrini, Marchetti & Viane, seen as the homoploid hybrid between tetraploid O. vulgatum L. and tetraploid O. × pierinii Peruzzi, Magrini, Marchetti & Viane; the pentaploid O. × pseudoazoricum Peruzzi, Pierini, Magrini, Marchetti & Viane, seen as the hybrid between hexaploid O. azoricum C.Presl and tetraploid O. vulgatum L. All the three new taxa grow in different localities in the Monte Pisano mountain range
Quasinormal modes of rotating black holes in Einstein-dilaton Gauss-Bonnet gravity: The first order in rotation
No full textGravitational spectroscopy - the measurement of the quasi-normal modes of a black hole from the ringdown signal of a binary black hole coalescence - is one of the most promising tools to test gravity in the strong-field, large-curvature regime, but without the knowledge of the black hole quasinormal modes in specific cases of modified gravity theories, only null tests of general relativity are possible. More specifically, we need to know the modes of rotating black holes, because typical compact binary mergers lead to black holes with large spins. In this article we compute, for the first time, the gravitational quasinormal modes of rotating black holes in a modified gravity theory, up to first order in the spin. We consider Einstein-dilaton Gauss-Bonnet gravity, one of the simplest modifications of general relativity in the large-curvature regime. We find that the shifts in the mode frequencies and damping times due to general relativity modifications are significantly magnified by rotation
Segnalazioni 227-232. In: PERUZZI L., VICIANI D., BEDINI G. (eds.), Contributi per una flora vascolare di Toscana. IV (181-246)
No full textIntroduction: Working Stars
No full textThis chapter describes the rationale of the edited collection, connecting it to the Italian research project it stems from. Building on previous theoretical understandings of actorship and on literature on Italian actors, and showcasing the main methods to survey the subject, i.e., performance studies, celebrity studies, and production studies. It shows describes how the subject of Italian contemporary film and media performers is investigated: by looking at the training and the early steps of actors, by following multifaceted careers across different projects, audiences, and media, and by tracing the design of personas and their recognition through press, PR, awards, and social media. Both the agency of actors and the role of intermediaries are highlighted, scrutinizing the background of a changing landscape, with the aim of providing our readership with a thorough account of the individual Italian case histories
Il “Prodromo della flora vascolare della Provincia di Lucca (Toscana nord-occidentale)” al 2018
No full textThe vascular flora of the Apuan Alps (Tuscany, Central Italy)
No full textWe present an updated and critically revised list of the vascular flora occurring in the Apuan Alps (Tuscany), a renowned area of high naturalistic interest. The list is based on a literature survey, herbarium and field studies. The Apuan Alps host an established flora of 1,987 specific and subspecific taxa (including 106 naturalized and 24 invasive aliens), 76 casual aliens and 27 hybrid taxa. Three taxa are new for Tuscany: Anthyllis vulneraria subsp. pulchella, Chaenomeles speciosa (casual alien), and Thalictrum minus subsp. saxatile, while Helianthemum oelandicum subsp. alpestre is excluded from the regional flora; 47 taxa are new for the study area (31 native, 16 alien). Concerning old records, 168 (158 native, four hybrid, and six casual alien taxa) were not confirmed, albeit considered reliable. Moreover, we considered 10 taxa as locally extinct, 44 as doubtfully occurring, and 14 as reported by error. Life forms suggest a transitional situation between a Mediterranean bioclimatic context and a more distinctly subcontinental one. Regarding the chorological spectrum, there is a clear prevalence of species with a distribution centered in the Eurosiberian Region, with a biogeographically relevant component represented by 152 taxa, among which 93 Italian endemics (30 of them narrowly endemic to Apuan Alps). Based on species-area relationship, the number of native taxa exceeds the one expected, while the number of alien taxa is lower than expected. This positions the area as objectively rich in terms of its flora and of high natural value
La linea orizzontale ci spinge verso la materia quella verticale verso lo spirito
No full textIl testo, incluso nella pubblicazione realizzata in occasione del progetto "Stele Flaminia" – un'installazione a firma del poeta visivo Lamberto Pignotti a Pesaro in occasione di Pesaro Capitale Italiana della Cultura 2024 – contestualizza l'opera nell'ambito della ricerca di Pignotti e propone una riflessione in merito all'uso e alle funzioni simboliche della tipografia nel paesaggio urbano
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