1,726,127 research outputs found

    A realizability semantics for inductive formal topologies, church’s thesis and axiom of choice

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    We present a Kleene realizability semantics for the intensional level of the Minimalist Foundation, for short mTT, extended with inductively generated formal topologies, the formal Church’s thesis and axiom of choice. This semantics is an extension of the one used to show the consistency of the intensional level of the Minimalist Foundation with the axiom of choice and the formal Church’s thesis in the work by Ishihara, Maietti, Maschio, Streicher [Arch.Math.Logic,57(7-8):873-888,2018]. A main novelty here is that such a semantics is formalized in a constructive theory as Aczel’s constructive set theory CZF extended with the regular extension axiom

    Dual-PEEC Modeling of a Two-Port TEM Cell for VHF Applications

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    Two-port TEM cells with rectangular cross section are commonly used to produce plane electromagnetic waves with high electric field. The non-uniform structure makes the use of numerical methods extremely useful in the design phase in order to achieve a very good behavior of the TEM cell over a wide frequency range of operation. In this paper an extended version of PEEC is used to study a real device and results are compared with experimental ones

    Medioevo maschio?

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    Data la scarsità di fonti medievali scritte da mani femminili, Georges Duby scrisse di "Mâle Moyen Âge" (1988): maschio perché i maschi ce lo raccontano. In questa prospettiva, l’intervento di Tiziana Lazzari invita a ragionare su quanto maschia sia la medievistica. L’analisi è condotta sui dati riguardanti il numero di dottorande, ricercatrici e professoresse di storia medievale nel contesto dell’accademia italiana e attraverso le sue riforme

    L’impresa sociale sostenibile nelle smart cities

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    'Innovazione Sociale e Impresa Sociale', APE, Maschio Angioino, Napol

    Maschio, Andrea

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    MAST (Maschio Angioino Smart Tour)

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    All'interno del più vasto progetto SNECS (Social Network delle Entità e dei Centri Storici), MAST (Maschio Angioino Smart Tour) ha avuto come finalità la ricerca, la valorizzazione e la fruizione, secondo modelli tecnologici innovativi basati sull'IoT, delle nuove sale del Museo Civico e di molti siti del Castel Nuovo di Napoli

    Middle Pleistocene to Holocene tectonics of the Sannio-Matese Mts. boundary: Geometry, kinematics and fault activity

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    A multidisciplinary study along the north-eastern and western borders of the Matese and Sannio Mts., respectively, has been devoted to decipher the Quaternary to Recent deformation of this sector of the Apenninic chain (MASCHIO, 2003). The mesostructural and geomorphologic analysis, supported by data from low-magnitude seismic sequences (MILANO et alii, 1999; VILARDO et alii, 2003) has allowed to: (1) map the distribution of Middle Pleistocene-Holocene normal fault systems; (2) assess geometry, kinematics and timing of deformation of the fault systems; (3) estimate averaged slip rates for the main tectonic structures, based on offsets of geomorphologic markers; (4) compare the fault kinematic and seismotectonic frame, (5) suggest a geometric model of the active deformation for this sector of the Apenninic chain, that helps clarify the relationships between exposed faults, historical and instrumental seismicity, and seismicity of boundary segments. In detail, the investigated fault systems present an articulated geometry and a complex kinematics in respect to the NE-SW direction of extension typically observed in the Southern Apennines. The tectonic control of inherited structures on active faulting plays a key role on the geometric arrangement of the arrays, formed by N-S and E-W segments which link each other to NW-SE striking, young deformation zones. Quaternary to Recent deformation appears to be accommodated by slip partitioning both on sub parallel structures and on variously striking but kinematically coordinated faults, active within a non-plane strain environment. The fact that slip is heterogeneously distributed in space is consistent with the focal mechanisms of the 1997-1998 low magnitude seismic sequences (MILANO et alii, 2001; VILARDO et alii, 2003). Inspection of the spatial distribution and differential elevation of remnants of sub-horizontal erosional and/or depositional surfaces, referred to various morphological events, has documented a migration of faulting during the Middle/Upper Pleistocene-Holocene and permitted to estimate vertical slip-rates for most of the segments of the fault systems. The main results are listed as follows: - a NE-dipping fault array in the Matese Mts. is active after 2 Ma (from Sassinoro to Guardiaregia to Roccamandolfi villages) and has a cumulate slip rate up to 0.31 mm/a; - most of the main fault systems of the northern border of the Matese Mts. and of the main antithetic ones of the southern border of the Montagnola di Frosolone are active after 0.7 Ma and have integrated slip rates up to 1.37 mm/a and to 0.33 mm/a, respectively; - range-bounding faults of the Matese and Sannio Mts., together with the N-S oriented Le Piane fault (DI BUCCI et alii, 2002), are active mostly after 0,12 Ma with cumulated slip rate of 1,0 mm/a. We suggest these fault systems are representative of an articulated, NE-dipping seismogenic structure, which is internally constituted of both E-W oriented inherited faults linking major NW-SE younger faults, and has NNW-SSE striking faults at its terminations (i.e. Le Piane and Castelpizzuto faults, towards north and Sassinoro, Collalto and Pescosardo faults, towards south). The cumulate slip rate estimates highlights that most of the strain accumulation is concentrated in the middle of the seismogenic structure, from Sepino-Guardiaregia to Castelpizzuto villages. Slip on the structure boundary can occur both during large earthquakes and low-energy seismic sequences

    Natural density and probability, constructively

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    We give a constructive account of the frequentist approach to probability, by means of natural density. Then we discuss some probabilistic variants of the Limited Principle of Omniscience
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