2,897 research outputs found
Emplacement of the Middle Triassic Monzoni Intrusive Complex (Dolomites, Italy): Insights from Analogue Models and Field Observations
No full textThe Dolomites form the central-eastern portion of the Southern Alps, in Northern Italy. The stratigraphic framework of the Dolomitic area includes mainly Permian to Cretaceous terrains, while it is largely dominated by the magnificent Triassic carbonate platforms and basinal systems. The area of the Dolomites recorded several tectonic and magmatic events, from Permian up to Cretaceous. During the Middle Triassic transtensional tectonics, associated with differential subsidence and uplifting, the south-western part of the Dolomites has witnessed a massive and short-lived Ladinian (Middle Triassic) tectono-magmatic event, forming a series of significant magmatic features. The Monzoni, Predazzo and Cima Pape Intrusive Complexes are situated in the southwestern Dolomites and represent the main intrusive expressions of the Ladinian magmatism. This PhD project offers new insights regarding the emplacement mechanisms of the Monzoni Intrusive Complex, by combining fieldwork data and analogue models on magma emplacement.
The Monzoni pluton is located parallel to San Pellegrino Valley and appears elongated, with an NE-SW orientation, covering an area of approximately 4.0 km2. The main characteristics of Monzoni pluton, that is the elongated shape and the shoshonitic orogenic affinity, suggest a potential correlation and emplacement control by the Triassic developing and/or reactivated inherited strike-slip structure. The generation, ascent and emplacement of Monzoni pluton and its relation to strike-slip faulting, is still a matter of debate. The lack of direct field observations attributed to the volcano-tectonic activity, keeps the mechanisms of magma–strike-slip fault interactions poorly understood.
Updated geological maps, based on field campaign data, bring new insights regarding intrusion, fault-controlled boundaries and deformational pattern of the pluton and host-rock formations. In addition, investigations on anisotropy of magnetic susceptibility (AMS) on Monzoni pluton, reveal zonation within the pluton and indicate the presence of magmatic feeder in the north-eastern part of the intrusion. Finally, the 3D modelling of the Monzoni Intrusive Complex, projecting all geological data, constrains the pluton’s volume to 4.35km3 and offers a simplified profile-view projection of the pluton/host-rock system.
The Monzoni Intrusive Complex, due to its excellent three-dimensional exposure, is particularly suited for the study of volcano-tectonic systems allowing the application and comparison to analogue models. During this project we conducted sandbox-type analogue modelling experiments on magma emplacement along crustal scale strike-slip fault zones. We investigate two tectonic regimes, strike–slip and transtension, and three temporal relationships between magmatism and tectonics; pre-tectonic, syn-tectonic and post-tectonic intrusion. Experimental results show that there is a strong interaction between tectonic structures, evolving or inherited, and magmatism and that the geometrical characteristics of the experimental plutons represent a good indicator for the classification of plutons, defining the timing and tectonic setting of emplacement. The combination of all applied methodologies suggests magmatic emplacement in transtensional tectonic regime with two possible kinematic scenarios; a left lateral strike –slip direction along the N70° fault set or a right-lateral strike slip direction, along the N30° faults.Le Dolomiti formano la parte centro-orientale delle Alpi meridionali, nel Nord Italia. L’organizzazione stratigrafica dell'area dolomitica comprende principalmente terreni dal Permiano al Cretaceo, mentre è in gran parte dominata dalle magnifiche piattaforme carbonatiche triassiche e dai relativi bacini. L'area delle Dolomiti ha registrato numerosi eventi tettonici e magmatici, dal Permiano fino al Cretaceo. Durante la tettonica transtensionale del Triassico medio, associata a subsidenza differenziale, la parte sud-occidentale delle Dolomiti è stata soggetta a un evento tettonico-magmatico Ladinico (Medio Triassico) di breve durata, sviluppando una serie di rilevanti strutture magmatiche. I complessi intrusivi di Monzoni, Predazzo e Cima Pape sono situati nelle Dolomiti sud-occidentali e rappresentano le principali espressioni intrusive del magmatismo Ladinico. Questo progetto di dottorato offre nuove conoscenze sui meccanismi di messa in posto del Complesso Intrusivo dei Monzoni, combinando dati sul campo e modelli analogici su postazioni di magma.
Il plutone dei Monzoni, che si trova parallelo alla Valle di San Pellegrino, appare allungato, con orientamento NE-SO, coprendo un'area di circa 4,0 km2. Le principali caratteristiche del plutone dei Monzoni, la forma allungata e l'affinità shoshonitica orogenica, suggeriscono una potenziale correlazione e controllo della messa in posto da parte di strutture trascorrenti ereditate o medio-triassiche.
La generazione, l'ascesa e la messa in posto del plutone dei Monzoni e il suo rapporto con le strutture trascorrenti, sono ancora oggetto di dibattito. La mancanza di osservazioni dirette sul campo attribuite all'attività vulcano-tettonica, rende difficile la comprensione dei meccanismi di interazione tra faglie e magmatismo.
Le mappe geologiche aggiornate basate sui nuovi dati di terreno, forniscono nuove informazioni sui limiti di intrusione controllati da faglie e sul modello deformativo delle formazioni incassanti e del plutone. Inoltre, indagini su anisotropia di suscettività magnetica (AMS) sull’intrusione dei Monzoni, rivelano la zonazione all'interno del plutone e indicano la presenza di un condotto di alimentazione principale nella parte nord-orientale dell'intrusione. Infine, la modellazione geologica 3D del complesso intrusivo dei Monzoni, coerente con i dati geologici, limita il volume del plutone a 4.35 km3 e offre una visione - semplificata dei rapporti tra plutone e rocce incassanti.
Il Complesso Intrusive di Monzoni, grazie alla sua eccellente esposizione tridimensionale, è particolarmente adatto allo studio di sistemi vulcano-tettonici, permettendo anche l'applicazione e il confronto con modelli analogici. Durante questo progetto, sono stati condotti esperimenti di modellazione analogica di tipo sandbox, su lungo zone di taglio trascorrenti a scala crostale. Sono stati distinti due regimi tettonici, trascorrenza pura e transtensione, e tre relazioni temporali tra magmatismo e tettonica; intrusione pre-tettonica, sin-tettonica e post-tettonica. I risultati sperimentali mostrano che esiste una forte interazione tra le strutture tettoniche, in evoluzione o ereditate, ed il magmatismo e che le caratteristiche geometriche dei plutoni sperimentali rappresentano un buon indicatore per la classificazione dei plutoni, definendo i tempi e l'ambiente tettonico della messa in posto. La combinazione di tutte le metodologie applicate, suggerisce la messa in posto del plutone durante un regime tettonico transtensionale con due possibili scenari cinematici; una transtensione sinistra - direzione N70° o una transtensione destra lungo faglie N30°
L'emozione non indifferente. Michail Ščepkin e la costruzione del personaggio
No full textMichail Ščepkin was one of the most prominent representatives of
early nineteenth-century Russian theatre. After his debut as a serf
actor on the provincial stage, Ščepkin achieved his greatest successes
in Moscow in the 1930s and 1940s, when the Higher Theatre School
was consolidating the progressive idea of educational theatre and
forming a new generation of critics, more attentive to and aware of
the importance of actors. Ščepkin had stimulating relationships with
intellectuals and artists like Granovsky and Gogol', and participated
in the gradual renewal of the Russian scene in the name of greater
realism. Contemporary critics and later historians have insisted on
the ‘naturalness’ and ‘simplicity’ of Ščepkin. However, despite an
evident anti-classicist tendency, his style clearly reveals a search for
the ‘perfect truth’ for a combination of realism and formal precision.
Thus the peculiarity of Ščepkin’s acting lies not in its realistic
inclinations, a tendency which was already prominent in Russia, but
rather in the definition of the character. Ščepkin implemented a
strong portrayal of the character, emotionally saturating it and
imbuing it with strong passions. At the same time he gave his
characters a psychological complexity that impressed the audience
and the critics, even when performing low-level repertoire. This was
the case of the Mariner, a banal melodramatic vaudeville that Ščepkin
turned into a mere masterpiece thanks to skilful silent scenes and
subtle interpretative nuances. The psychological analysis of the role
appears therefore as a fundamental element of Ščepkin’s acting
technique
Prefazione [a: Michail Kuzmin, Le stagioni dell'amore, Bari, Stilo, 2020, 172 pp.]
No full text"Kuranty ljubvi" (Le stagioni dell'amore) è un piccolo, ma poeticamente significativo, contributo alla produzione letteraria del Simbolismo russo nel segno della sintesi delle arti. Michail Kuzmin, uno dei più importanti scrittori di quell'epoca, è l'autore del ciclo poetico-musicale e delle partiture."Kuranty ljubvi" (The seasons of love) is a small but poetically significant contribution to the literary production of Russian Symbolism in the context of the synthesis of the arts. Michail Kuzmin, one of the most important writers of that era, is the author of the poetic-musical cycle and of the scores
Dei delitti e delle pene nella traduzione di Michail M. Scerbatov
No full textAfter more than two centuries, this work presents the Russian version of “Dei delitti e delle pene” by Cesare Beccaria, translated by Prince Michail M. Šcerbatov. The edition, conducted on the autographed manuscript, is presented with the original Italian text. In the introductory study, the author traces the fundamental stages of the diffusion of Beccaria’s work in Russia, focusing in particular on the figure of Michail M. Isaev, scholar and translator of the masterpiece by Beccaria, who was the first to re-propose the modern organisation of the “Fifth” edition. The author gives an account of the version proposed by Šcerbatov, investigating its textual genesis and evaluating some aspects of the language used by the translator - first of all the lexicon used for the rendering of philosophical-political and legal terms
Protocol for a systematic review and meta-analysis of cognitive-behavioural therapy for social anxiety disorder in psychosis
No full textBackground:
Social anxiety is among the most prevalent and debilitating affective disturbances manifest in people with psychosis. It is usually accompanied by high levels of depression and leads to significant social disability, lower quality of life and poorer prognosis as it raises the possibility of an early relapse. Despite its elevated prevalence and severity in psychosis, social anxiety remains under-recognized and under-treated. Cognitive-behavioural therapy is recommended for the treatment of people with psychosis. However, its focus and evaluation has primarily revolved around the reduction of psychotic symptoms, and not for co-morbid affective disturbances such as social anxiety. There is lack of evidence on the clinical effectiveness and cost-effectiveness of cognitive-behavioural interventions for the treatment of social anxiety disorder in psychosis.
Methods/Design:
Electronic databases will be systematically searched for randomised controlled trials and quasi-experimental studies investigating the effectiveness and cost-effectiveness of cognitive-behavioural interventions for the treatment of social anxiety disorder in people with psychosis. Grey literature will also be searched by screening trial registers. Only studies published in English will be included in the review. Date restrictions will not be applied. Eligible studies will have as the primary outcome social anxiety (continuous data) measured using any psychometrically validated scale both self-reported and clinician administered. Secondary outcomes will include general anxiety symptoms, distress, depression, positive and negative symptoms of schizophrenia, and quality of life measured using any psychometrically validated scale, both self-reported and clinician administered, and the cost of cognitive-behaviour therapy (CBT) intervention (with another treatment or treatment-as-usual).
Conclusions:
This review will provide an evidence synthesis of the effectiveness and cost-effectiveness of cognitive-behavioural interventions for the treatment of social anxiety disorder in people with psychosis. The review will identify the specific intervention components associated with effectiveness which will facilitate the translation of the existing evidence to the development of new, targeted interventions optimising these components. In doing so, this review will provide recommendations for the treatment of social anxiety and associated distress in psychosis and will further inform the development of future interventions in this area
Performance Analysis of Post-Quantum Cryptography Algorithms for Digital Signature
No full textIn the face of advancing quantum computing capabilities posing significant threats to current cryptographic protocols, the need for post-quantum cryptography has become increasingly urgent. This paper presents a comprehensive analysis of the performance of various post-quantum cryptographic algorithms specifically applied to digital signatures. It focuses on the implementation and performance analysis of selected algorithms, including CRYSTALS-Dilithium, Falcon, and SPHINCS+, using the liboqs library. Performance tests reveal insights into key pair generation, file signing, and signature verification processes. Comparative tests with the well-known and popular RSA algorithm highlight the trade-offs between security and time efficiency. The results can help to select secure and efficient ciphers for specific 5G/6G services
MICRO UAV FOR POST SEISMIC HAZARDS SURVEYING IN OLD CITY CENTER OF L'AQUILA
No full textAlmost three years ago a disastrous earthquake hits the old city of L'Aquila, hundreds of victims, thousands of collapses. The post emergency and very crucial phase regarding surveys, structure controls and investigations till now is fully underway. Conventional surveying techniques using high precision total stations, GNSS and laser scanners for investigations on damaged buildings are always becoming more automated, accurate and operative in always shorter time manners. Even if these techniques represent instruments of extreme operability there are still many evident limits on their use especially regarding the survey of both the roofs and the facades of tall buildings or dangerous places, typical on post earthquake situations. For example, the details of a bell set at 40 m height are always hidden for most of the instruments such as laser scanners or total stations, certainly, the non optimal capturing angle and the bad visual would represent considerable limits for the identification of potential damages. The present work aims on experimenting an innovative surveying methodology using multirotor UAVs (Unmanned Aerial Vehicles), fully remote controlled, that will allow high quality image capturing on roofs and facades of structures in the old city center of L'Aquila. These data will be elaborated with photogrammetric software suits to create digital models of the building and databases with its detailed characteristics. The field of application can be the concept of photogrammetry of proximity as the flights are carried out at altitudes much lower than an aerial photogrammetry, moreover, as the flight is operated in a fully automated way, extended areas can be surveyed in a fat and economic way. This paper highlights the reasons that led to explore the use of a Micro UAV in the relief of an old city center through a real case application. Each step of photogrammetry is described, from the planning software of the flight plan and gripping points to ensure the coverage required to the execution of the flight and the data processing. The experiments were performed using an IPT Mikrokopter (Rome - Italy), in octo-configuration (8 engines) in order to have better flight stability and raise the needed payload for an SLR digital camera; the flight was also performed in fully automatic way at the height of 80m. The results presented in this study highlight the excellent integration of these surveys with those made by conventional instruments and propose this methodology as an effective documentation necessary for a recovery of an old city in a post natural disaster
Author Correction: Proton irradiation: a key to the challenge of N-glycosidic bond formation in a prebiotic context
No full textInternational audienceThe original version of this Article contained a typographical error in the spelling of the author Mikhail Kapralov, which was incorrectly given as Michail Kapralov. This has now been corrected in the PDF and HTML versions of the Article and in the accompanying Supplementary Information
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