855 research outputs found
Mario Bertini, scultore pisano.
No full textL’idea iniziale alla base del presente lavoro, era quella di colmare la mancanza di un catalogo completo dell’opera di Mario Bertini, importante artista pisano del ‘900. Fin dagli inizi della ricerca, tuttavia, si è reso evidente che riuscire a realizzare una raccolta completa ed esaustiva dell’attività artistica dello scultore sarebbe stato un lavoro assai complesso lungo, vista l’enorme produzione d’opere d’arte realizzate nell’arco della sua lunga esistenza. Temendo, quindi, di non riuscire a fornire una visione approfondita di tutti i settori in cui Bertini ha espresso la propria vena creativa, si è deciso di dedicare gran parte della ricerca all’ambito delle opere di committenza ecclesiastica, in quanto, oltre che molto interessanti da un punto di vista iconografico, attraverso tali opere, i cui soggetti, spesso, si ripetono, è possibile tracciare una linea evolutiva della sua espressione artistica.
Esaminando, a titolo d’esempio, le Vie Crucis da lui realizzate, si può notare come, dalle prime rappresentazioni molto dettagliate delle stazioni, con il tempo l’artista abbia semplificato e ridotto all’essenziale gli elementi descrittivi fino a lasciare solo quelli indispensabili da un punto di vista iconografico, cercando così di far convergere l’attenzione, in maniera quasi esclusiva, sulla forza emotiva dei volti dei soggetti rappresentati.
Tuttavia, dopo avere narrato gli eventi salienti della vita del Bertini, così come descritti dai familiari e dalle sue agende annuali, nel tentativo di fornire una visione più completa dell’artista e della sua produzione i primi capitoli di questo lavoro sono stati dedicati ad illustrare brevemente le sue opere giovanili (cap. 2), la sua produzione come disegnatore (cap. 3), le opere da lui realizzate su committenza privata (cap. 4), ed in modo particolare le opere funerarie (cap. 5), e le più significative della sua produzione medaglistica (cap. 6) dove eccelse così tanto da ricevere molteplici committenze sia a livello locale che in tutta Italia. Tutto questo ci aiuterà a inquadrare meglio un artista poliedrico quale fu Mario Bertini.
Dopo questi accenni, si è passati allo studio approfondito delle opere realizzate per le chiese pisane e per quelle delle località limitrofe. Le chiese sono state analizzate seguendo un ordine cronologico rispetto alla data dell’opera realizzata dal Bertini. Le opere sono state studiate tenendo conto sia dell’aspetto iconografico che di quello iconologico, dei materiali usati e dell’anno in cui queste sono state realizzate. Per le opere che non è stato possibile ricondurre direttamente ad una cronologia generale si è fatto ricorso ai seguenti strumenti alternativi di datazione: un breve manoscritto dell’autore, conservato nell’archivio Bertini (VA-3), nel quale sono elencati alcuni dei suoi lavori con la relativa datazione; le agende annuali dove il Bertini annotava gli impegni presi con i vari committenti, i materiali necessari per eseguire le opere e i vari stadi di avanzamento dei lavori; i preventivi di spesa inerenti i lavori da eseguire e le fatture relative ai pagamenti delle opere finite; gli eventuali articoli dei quotidiani locali. Nei casi in cui, tuttavia, non è stato proprio possibile risalire ad una data ragionevolmente certa, è stata attribuita all’opera una ipotetica data sulla base dell’analisi stilistica e formale
Lanzavecchia & Co. Ufficiali lombardi nei Paesi Bassi sotto Alessandro Farnese
No full textIl saggio ricostruisce il significativo contributo strategico offerto da numerosi ufficiali, appartenenti all'élite lombarda, che servirono sotto Alessandro Farnese nei Paesi Bassi. Questa ricostruzione consente di affrontare alcune questioni di notevole rilievo storiografico, quali ad esempio la complessa natura della guerra nelle Fiandre durante la seconda metà del XVI secolo, l'importanza del patronage e dei legami clientelari nella società e negli eserciti di antico regime, la selezione dell'ufficialità tra criteri meritocratici e vincoli socio-parentali, il consolidamento del consenso fra le élite imperiali
Muscarinic M2 receptors interact with neurokininergic NK1 and NK2 receptors in the contractions of isolated bronchi in the horse.
No full textAcetylcholine and neurokinins, known as neurotransmitters that induce bronchoconstriction in horses and
other species, are involved in the pathogenesis of obstructive respiratory diseases. However, the
knowledge about the role of muscarinic receptors in the control of airway contraction in equines is not fully
elucidated and that of neurokininergic receptors is limited.
Bronchial smooth muscle rings of slaughtered horses were obtained from healthy lungs, or from lungs with
macroscopic signs of inflammation, put into organ baths and connected to isotonic transducers. Electrical
field stimulation was applied (50 Hz, 1 ms, 300 mA, 50 V every 120 s), and phasic contractions of bronchial
smooth muscle were evoked. Previous experiments showed the neurogenic cholinergic nature of these
contractions and a central role of muscarinic M3 receptors [1]. The effects of drugs were expressed as
variation of the pre-drug contraction amplitude, assumed as 100%.
Bronchial contractions were partially inhibited by selective M3 receptor antagonist (pFHHSiD) up to 10-6 M,
and totally abolished at 10-5 M in normal and inflamed tissues. Methoctramine, selective M2 receptor
antagonist, was able to reduce the contractions only in healthy bronchial rings, whereas selective M1
receptor antagonist, VU0255035, reduced the contractions only in pathologic ones.
L-732,138 and GR159897, selective NK1- and NK2-receptor antagonist respectively, slightly reduced the
contractions in normal and pathologic tissues, whereas SB218795, selective NK3-receptor antagonist, was
ineffective. In presence of either NK1, NK2, but not NK3 receptor block, M2 antagonist, methoctramine,
was able to reduce the contractions of the pathologic bronchi, while the response in normal tissue was
unchanged.
Muscarinic M1, M2, and M3 receptors are involved in the contractions of horse bronchi, M3 receptors
playing a major role. Present results suggest an interference between cholinergic and neurokininergic
systems involving M2, NK1 and NK2 receptor subtypes. The influence of the excitatory peptidergic system
seems to be more evident in pathologic tissue, and indeed up-regulation of NK2 receptors in horses with
RAO was detected [2]. A localization of inhibitory M2 receptors on neurokininergic neurons releasing
substance P and/or neurokinin A could be hypothesized, as already observed in other species [3]. A better
knowledge of the interactions between cholinergic and neurokininergic systems could help the
development of more effective drugs for the treatment of bronchial hyperactivity in horses and, possibly, in
humans.
[1] Menozzi A, Pozzoli C, Poli E, Delvescovo B, Serventi P, Bertini S. J vet Pharm Ther 2014; in press
[2] Venugopal CS, Holmes EP, Polikepahad S, Laborde S, Kearney M, Moore RM. Can J Vet Res 2009; 73:25-
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[3] Bernardini N, Roza C, Sauer SK,1 Gomeza J, Wess J, Reeh PW. J Neurosci 2002; 22:RC22
Francesca Bertini diva for cinema: analysis of Assunta Spina (1915)
No full textopenLa tesi qui presente tratta di un'attrice del cinema muto italiano Francesca Bertini, attraverso l'analisi del suo film di maggiore successo "Assunta Spina" con un introduzione sul fenomeno del divismo cinematografico
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Francesca Bertini
No full textFrancesca Bertini was an extremely careful guardian of her image and legacy throughout her whole life. A major star of the international silent screen, she has recounted her hugely successful career in different autobiographic writings and interventions. An invaluable source of information for the history of Italian cinema, these documents are notoriously reticent—and sometimes unreliable—about certain personal details of her life. For example, she never revealed to have been first registered in 1892 at an orphanage in Florence as Elena Taddei, the daughter of Adelina di Venanzio Fratiglioni, a single mother and possibly a stage actress (Jandelli 2006, 31-2). While many sources indicate her first surname to be Seracini, the only concrete information we have about her acquired identity is that she became Elena Vitiello in 1910, when her mother married Arturo Vitiello, a Neapolitan propman or furniture dealer. Bertini was introduced to the sprightly Neapolitan theatrical milieu at an early age. She got her first, supporting role on stage when she was just seventeen, in the widely acclaimed 1909 production of “Assunta Spina”—an intense southern melodrama by reputed author Salvatore Di Giacomo. One of the most representative texts of the new Neapolitan popular theater, “Assunta Spina” was later transposed on screen by Bertini in 1915. The final result is still regarded as one of the masterpieces of Italian silent cinema and an emblematic example of Verist cinema. By 1915, Bertini had already been cast in more than 50 films, including many one and two-reel historical reconstructions and a few features. The following years saw her continuing to grow in popularity, with her films gaining huge acclaim wherever they were presented, from Europe to Latin America and from Russia to the United States
Natural occurrence of ochratoxin A in confined reared and grazing pigs derived products
No full textOchratoxin A (OTA) is a well-known nephrotoxic and immunotoxic mycotoxin occurring in several foods and feeds. OTA
residues have been detected as a carryover in pigs and poultry meats. In this study samples of pigs fresh tissues (muscle, backfat)
and processed meat products (seasoned muscle-coppa, seasoned backfat-lard, mortadella and salami) were obtained from
pigs raised following two breeding systems: conventional production systems (indoor) and alternative pig rearing systems (free
outdoor access). Pigs tissues and meat products samples were analysed for OTA content by means of an HPLC-FLD method.
OTA was found in all pigs tissues and meat products at concentration lower than the Italian recommended maximum level of
1 μg/kg, only a sample of mortadella of indoor group showed a concentration very close to this limit. This study suggests that
the contribution from pig fresh tissues to the total intake of the toxin is small if compare
Distributed Ledger and Text Watermarking for Fine-Grain Provenance Checking of Textual Content
No full textInformation disorder has become a major societal challenge, impacting public discourse and democracy. This phenomenon has been exacerbated by the spread of social media platforms, affecting various areas, ranging from national elections to public health. Addressing fake news through a manual approach (e.g., human fact-checking) is unfeasible due to the rapid production of textual content. At the same time, applying automatic tools is equally challenging, primarily due to the ambiguity of natural language. In this paper, we addressed online information disorder from a different perspective by proposing a platform that supports trustworthy and reputable news producers and enhances awareness among readers across various social media. Specifically, the proposed platform enables news producers to automatically embed a unique watermark in the text they create, ensuring that the news cannot be manipulated or misattributed. The watermarking is embedded in a fine-grained way, allowing even small extracts of the news to be shared while preserving traceability. Additionally, the association between the watermark and the news item is recorded in a distributed ledger, preventing further manipulation that could arise from centralised management. The aim is to enable readers to make more informed decisions about the content they encounter, even when engaging with excerpts of the original document, minimising reliance on external fact-checking organisations
"Con insonnij diversi, et visioni stravaganti di guerre": l'esordio di Pietro Caetani nelle Fiandre
No full textRipercorre gli esordi del nobile romano Pietro Caetani alle campagne di Fiandra sotto il comando di Alessandro Farnes
Conferenza Confini: Patria e esilio. Letterati a confronto: Ugo Foscolo e Alessandro Poerio
No full textIl Coordinamento nazionale Associazioni risorgimentali vi segnala il primo appuntamento di quest’anno con la rassegna CONFINI: Mercoledì 15 novembre 2023, ore 18:00, sulla pagina FB del Coordinamento nazionale, Confini da lasciare: Lydia Salmeri parla di “Patria ed esilio.Letterari a confronto: Ugo Foscolo e Alessandro Poerio”; discute con lei Anna Poerio, introducono e moderano Angela Maria Alberton e Fabio Bertini
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