569 research outputs found
Tra autorappresentazione, cronaca e negozio spirituale. Il trattato del mercedario Ignazio Vidondo e la redenzione di Algeri del 1654
No full text"Il saggio, composto da Sara Cabibbo (pp. 65-71; 84-94) e da Maria Lupi (pp. 72-84; 94-100) si propone di enucleare e presentare i temi più significativi del trattato Espejo católico del mercedario navarrino Ignacio Vidondo, pubblicata a Pamplona nel 1658. Si tratta di un’opera finalizzata a difendere ed esaltare l’attività di riscatto in favore dei "captivi" cristiani in terra musulmana, che rappresentava lo scopo principale dell’ordine della Mercede. Nel volume l’autore porta la sua diretta testimonianza di redentore, narrando la spedizione da lui guidata ad Algeri nel 1654 e analizzando i problemi pratici che comportava il contatto con una società così diversa da quella europea.. ""This essay of Sara Cabibbo (pp. 65-71; 84-94) and Maria Lupi (pp. 72-84; 94-100) introduces and explains the most significant themes of the treatise Espejo católico, published in Pamplona in 1658 and written by Ignacio Vidondo, a Mercedarian born in Navarre. This volume is directed to defend and exalt the ransoming activity of Christian "captivi" in Muslim land, which was the main aim of the Order of Mercy. In his work, the author gives his own account of his activity as redeemer of slaves, describing the expedition he leaded up to Algeri in 1654 and analyzing practical difficulties coming from the contact with a society so different from the european one. .
L'automobile e la stricnina. Geografie del ritorno dei lupi
No full textA partire dagli anni Settanta si è verificato un ritorno significativo di lupi, specie che era stata vicina alla scomparsa dal territorio italiano. Questo ritorno è stato causato dall'aumento esponenziale della copertura boschiva seguito allo spopolamento delle aree interne e dalla terziarizzazione dell'economia. Il compito di questa tesi è comprendere le geografie del rapporto tra umani e lupi in un contesto non abituato alla convivenza. Nella prima parte dell'analisi della letteratura, ho presentato il concetto di biopolitica a partire dal lavoro di Foucault, estendendolo alle specie non-umane. Ho poi esposto alcuni concetti chiave delle geografie animali, ambito di studi che si occupa di analizzare dello studio la dimensione spaziale, politico-economica ed etica della vita animale e delle relazioni uomo-animale. In una seconda parte ho contestualizzato il rapporto tra umani e lupi in una storia segnata dalla relazione con gli spazi naturali. Il rapporto tra le due specie è segnato da pratiche di sterminio volte a costruire uno spazio unicamente plasmato dall'attività umana. Conseguentemente alla terziarizzazione dell'economia occidentale, il lupo è tornato ad abitare porzioni sempre più vaste del territorio nazionale. Ho scelto di analizzare il fenomeno del ritorno del lupo usando la Romagna come caso studio. Ho intervistato guardie faunistiche e seguito la descrizione mediatica del fenomeno in modo da studiare le varie aree di contatto tra uomini e lupi e le eventuali conflittualità. Ne emerge uno scenario eterogeneo in cui storie di convivenza si alternano a episodi di bracconaggio
La riforma dell’istruzione religiosa a Roma all’inizio del Settecento: il progetto di Giovanni Andrea Corderi
No full textIl contributo intende analizzare il contributo del sacerdote piemontese Giovanni Andrea Corderi al rinnovamento dell’insegnamento della dottrina e pratica religiosa nella Roma dell’inizio del XVIII secolo attraverso lo studio del lungo processo di stesura della sua opera principale Istruzioni per ben guidare durante il pontificato di Clemente XI fino alla pubblicazione anonima sotto Benedetto XIII.
La sua proposta prevedeva il coinvolgimento di tutti, sacerdoti, religiosi e fedeli, nell’opera di formazione cristiana attraverso regolamenti minuziosi da mettere in pratica quotidianamente che nell’intenzione dell’autore avrebbero dovuto trasformare in ferventi cattolici tutti i cittadini dell’Urbe.The paper analyzes the contribution of the Piedmontese priest Giovanni Andrea Corderi to the renewal of the teaching of doctrine and religious practice in Rome at the beginning of the eighteenth century through the study of the long process of drafting his main work Istruzioni per ben guidare during the pontificate of Clement XI up to the anonymous publication under Benedict XIII. His proposal included the involvement of all, priests, religious and lay faithful, in the work of Christian formation through meticulous regulations to put into practice every day. In the intention of the author they should have transformed all the citizens of Rome into fervent Catholics
Design of Finite State Machines for SRAM-based FPGAs operated in radiation field
No full textFor the CERN LHC Run 3, the ALICE experiment completely redesigned the Inner Tracking System (ITS), which now consists of seven cylindrical layers instrumented with 24 120 Monolithic Active Pixel Sensors, covering an area of 10m . The ITS is controlled and read out by 192 custom Readout Units, which employ commercial SRAM-based FPGAs and will operate in a radiation field, requiring specific FPGA design to ensure system reliability. This contribution focuses on the techniques developed for designing radiation tolerant finite state machines, discussing the theoretical background, the actual implementation, and their validation with fault injections and proton irradiation tests
Upper Miocene volcanic ash layers from central Italy: tracking down the volcanic source
No full textThe Mediterranean region has been characterized by intense explosive volcanism since the Eocene. These eruptions ejected tephra, including fine-grained ash, which were thrown into the air and dispersed over wide areas to later be deposited as ash layers, many of which are preserved in some continental and marine sedimentary basins. Their study provides crucial insights into past volcanic activity, yet, for many of such ash layers, the understanding of their sources remains challenging. The pres- ence of many ash layers across central Italy is widely recognized in literature although not uniquely associated with a specific volcanic source. We investigate in detail upper Tortonian (~ 7.6 Ma) ash layers sampled from three different localities, from the Tyrrhenian to the Adriatic coast of Italy, comparing our results with others already described in the literature. Electron microprobe geochemical analyses on biotite crystals, U–Pb ID-TIMS and LA-ICP-MS geochronological dating, and trace elements/Lu–Hf isotope analyses on zircons permitted us to expand our knowledge of these ancient ash deposits. Several potential volcanic centers were active during the late Tortonian, including the Massif Central (France), the Valencia trough (Spain), the Betics-Rif orogen (Spain-Morocco), and eastern Carpathians (Romania) and Capraia island (Italy). Through detailed radioisotopic dating and geochemical comparisons, we narrow down the possible source to the Upper Miocene Capraia island volcano (Tuscan archipelago), located in the northern Tyrrhenian basin
Dynamical evolution of massive perturbers in realistic multicomponent galaxy models I: implementation and validation
No full textGalaxies are self-gravitating structures composed by several components encompassing spherical, axial, and triaxial symmetry. Although real systems feature heterogeneous components whose properties are intimately connected, semi-analytical approaches often exploit the linearity of the Poisson’s equation to represent the potential and mass distribution of a multicomponent galaxy as the sum of the individual components. In this work, we expand the semi-analytical framework developed in Bonetti et al. (2020) by including both a detailed implementation of the gravitational potential of exponential disc (modelled with a sech2 and an exponential vertical profile) and an accurate prescription for the dynamical friction experienced by massive perturbers (MP) in composite galaxy models featuring rotating disc structures. Such improvements allow us to evolve arbitrary orbits either within or outside the galactic disc plane. We validate the results obtained by our numerical model against public semi-analytical codes as well as full N-body simulations, finding that our model is in excellent agreement to the codes it is compared with. The ability to reproduce the relevant physical processes responsible for the evolution of MP orbits and its computational efficiency make our framework perfectly suited for large parameter-space exploration studies
The slow spin of the young substellar companion GQ Lupi b and its orbital configuration
No full textThe spin of a planet or brown dwarf is related to the accretion process, and therefore studying spin can help promote our understanding of the formation of such objects. We present the projected rotational velocity of the young substellar companion GQ Lupi b, along with its barycentric radial velocity. The directly imaged exoplanet or brown dwarf companion joins a small but growing ensemble of wide-orbit, substellar companions with a spin measurement. The GQ Lupi system was observed at high spectral resolution (R ~ 100 000), and in the analysis we made use of both spectral and spatial filtering to separate the signal of the companion from that of the host star. We detect both CO (S/N = 11.6) and H2O (S/N = 7.7) in the atmosphere of GQ Lupi b by cross-correlating with model spectra, and we find it to be a slow rotator with a projected rotational velocity of 5.3+0.9-1.0 km s-1. The slow rotation is most likely due to its young age of <5 Myr, as it is still in the process of accreting material and angular momentum. We measure the barycentric radial velocity of GQ Lupi b to be 2.0 ± 0.4 km s-1, and discuss the allowed orbital configurations and their implications for formation scenarios for GQ Lupi b
Circular economy, the transition of an incumbent focal firm: How to successfully reconcile environmental and economic sustainability?
No full textCircular economy (CE) has garnered increasing attention in political circles and practitioner literature thanks to its potential to overcome the harmful consequences of linear patterns of growth. Nonetheless, the adoption of sustainable practices entails a holistic approach requiring businesses to make significant changes to their production, technologies and stakeholder management. These challenges resulted in limited progress in terms of the practical implementation of CE. This paper addresses the need for more literature focused on the pragmatic aspects of applying this paradigm to incumbent firms. The author presents the journey that Lucart Spa, a major European tissue paper manufacturer, has undertaken between 2014 and 2020 to apply CE principles to its practices. Insights from the transformation process, reconstructed through interviews with the firm’s management and environmental impact data, suggest that to succeed it takes innovating (plants, products and marketing strategies) and setting up supply chains that reconcile environmental and economic sustainability
Artificial fingerprints engraved through block-copolymers as nanoscale physical unclonable functions for authentication and identification
No full textAbstract Besides causing financial losses and damage to the brand’s reputation, counterfeiting can threaten the health system and global security. In this context, physical unclonable functions (PUFs) have been proposed to overcome limitations of current anti-counterfeiting technologies. Here, we report on artificial fingerprints that can be directly engraved on a wide range of substrates through self-assembled block-copolymer templating as nanoscale PUFs for secure authentication and identification. Results show that morphological features can be exploited to encode fingerprint-like nanopatterns in binary code matrices representing a unique bit stream of information characterized by high uniqueness and entropy. A strategy based on computer vision concepts for authentication/identification in real-world scenarios is reported. Long-term reliable operation and robust authentication/identification against thermal treatment at cryogenic and high temperatures of the PUF have been demonstrated. These results pave the way for the realization of PUFs embracing the inherent stochasticity of self-assembled materials at the nanoscale
Gravity Data Allow to Image the Shallow‐Medium Subsurface Below Mud Volcanoes
No full textThe debate about the conceptual model of mud volcanoes functioning is still alive in the literature. A large part of the literature focuses on the characterization of the deep reservoir where expelled
fluids are expected to originate. Another part of literature is focused on the study of the shallow system of mud volcanoes, which could influence the short-term variations in mud volcanoes activity. We present and analyze a new data set of micro-gravimetric data to study the area of the Nirano Salse, Italy. Unlike what is commonly assumed for the study area, our results suggest that the geomorphology of the Nirano Salse is not related to a caldera collapse above a shallow mud chamber, but to the surface expression of slip distribution of a fault termination along which the fluids ascended to the surface. We believe that gravimetric data can significantly improve the study of hydrocarbon seeps and mud volcanism
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