1,740 research outputs found
L'utilizzo congiunto di dati campionari e amministrativi per stimare la distribuzione dei depositi delle famiglie
No full textSeveral initiatives have combined survey data with macroeconomic aggregates from national accounts to produce more reliable and timely statistics on the distribution of household income and wealth. This paper builds on the methodology developed by the Expert Group on Distributional Financial Accounts, created by the European Central Bank, and proposes a novel approach for Italy to align survey-based total deposit estimates to the corresponding macroeconomic figures, by exploiting administrative records that are linked to the Survey on Household Income and Wealth and the aggregate information coming from supervisory data. The proposed method leads to a slight decrease in inequality of the deposit distribution compared to survey data and generally guarantees a closer match with aggregates from supervisory data compared to the ESCB approach
Stocks price forecasts using Stochastic Differential Equations: an empirical assessment
No full textIn this analysis we investigated the reliability of Stochastic Differential Equations (SDE) in forecasting stock prices on a hhort time period in a simplified framework. Four different SDE models were used, each applied on stocks of companies listed on NASDAQ and validated in each month between July 2022 and January 2023. Both the coverage of the confidence intervals estimates and the reliability of the average behaviour estimates were checked. Results show an overall good reliability for stocks with a strong expected percentage increase (above 3%)
Analysis and design of CMOS and bipolar SiGe:C integrated circuits for low power RF receivers and radar applications
No full textThis dissertation proposes the analysis and the design of two radio-frequency integrated circuits.
In the first part a low-power wireless receiver front-end for Wireless Sensor Networks is developed. The circuit comprises a Low-Noise Amplifier, Voltage Controlled Oscillators and Mixers, building a complete single-stage quadrature receiver front-end for low-power applications. The compact architecture based on a current reuse topology is described and motivated; an in-depth time-variant analysis is performed to optimize the circuit; a test 2.4GHz receiver is finally designed and realized in a cheap 90nm CMOS technology with a 3μm thick top metal for high-quality integrated inductors. Measurement results confirm the correctness of our analysis and the validity of the proposed circuit architecture.
In the second part of this dissertation a X-band upconverter for a Frequency-Modulated Continuous-Wave radar system is developed. The goal of the project is that of developing a wideband upconverter with a clean output spectrum and low phase noise. The proposed architecture is constituted by two mixers, baseband interfaces, a pre-power amplifier and the on-chip circuitry to generate quadrature local oscillator signals from an external reference local oscillator. Several mechanisms which lead to spurious tones at the output are discussed, with emphasis on the design issues related to the image-rejection, the mismatches and the nonlinearities in the large-signal baseband interface.
Two versions of the modulator are designed and compared: a) a CMOS version built in a 65nm digital technology based on a zero DC current passive mixer for minimum flicker noise and b) a bipolar version built in a 0.35μm SiGe:C technology based on an active Gilbert mixerQuesta tesi di dottorato propone l'analisi e la progettazione di due circuiti integrati a radio-frequenza.
Nella prima parte del lavoro viene sviluppato il front-end di un ricevitore wireless a basso consumo di potenza per Wireless Sensor Networks. Il circuito, che comprende un amplificatore a basso rumore, oscillatori locali e mixer, costituisce un sistema di ricezione completo implementato in un singolo stadio per ridurre il consumo di potenza.
L'architettura proposta, basata sulla tecnica del riutilizzo della corrente di polarizzazione, viene motivata e descritta in dettaglio; segue un'accurata analisi tempo-variante dell'architettura per l'ottimizzazione del circuito proposto; il ricevitore a 2.4GHz è stato infine realizzato con una tecnologia CMOS digitale a 90nm con top metal ottimizzato per la realizzazione di induttori integrati con alto fattore di qualità. Le misure effettute sui campioni confermano la correttezza della nostra analisi e la validità dell'architettura proposta.
Nella seconda parte di questa tesi di dottorato viene sviluppato un upconverter per un Frequency-Modulated Continuous-Wave radar in banda X. L'obiettivo del progetto è quello di realizzare un upconverter a banda larga, con uno spettro in uscita libero da toni spuri e con minimo phase noise. L'architettura proposta comprende due mixer con relative interfacce in banda base, un amplificatore a radiofrequenza e tutta la circuiteria per la generazione dei segnali in quadratura per pilotare i mixer a partire da un oscillatore locale esterno di riferimento.
Vengono analizzati vari meccanismi di generazione di toni spuri all'uscita, con particolare enfasi sui problemi legati alla reiezione dell'immagine, ai mismatches ed alle nonlinearità generate nell'interfaccia in banda base.
Due versioni del modulatore sono state progettate e confrontate: a) una versione realizzata in una tecnologia CMOS a 65nm digitale basata su un mixer passivo a corrente di polarizzazione nulla per minimizzare la generazione di rumore flicker e b) una versione realizzata in una tecnologia bipolare SiGe:C a 0.35μm basata su un mixer di Gilbert attiv
The heterogeneous impact of inflation across the joint distribution of household income and wealth
No full textWe assess the impact of the 2022 inflationary shock on Italian households’ wealth along the joint distribution of income and net wealth. The analysis was carried out by dividing households into four groups based on their median income and net wealth, using a methodology similar to the Distributional Wealth Accounts developed at European level. The erosion of the real value of net financial wealth due to inflation was heterogeneous across households. While capital losses were small for the least wealthy households, for the wealthiest group they exceeded one tenth of annual disposable income. Conversely, the reduction in the real value of financial liabilities allowed the group of households with high income and low net wealth to realize a capital gain of nearly one tenth of their income
TUTELA DEL LAVORO E LIBERTA' D'IMPRESA NEI PROCESSI DI ESTERNALIZZAZIONE
No full textL’elaborato analizza le conseguenze lavoristiche della successione fra imprenditori, muovendo da una ricognizione delle varie tipologie di esternalizzazione con le relative esigenze e principali criticità.
L’indagine si concentra in primo luogo sul trasferimento d’azienda, esaminando la normativa e la giurisprudenza europee per passare poi alla disciplina di diritto interno, alle procedure sindacali e a uno specifico focus sul trasferimento delle aziende in crisi.
Successivamente l’autore si sofferma sull’appalto, prendendone in particolare considerazione gli indici di genuinità, i criteri di distinzione dalla somministrazione illecita di manodopera e la tutela delle maestranze in caso di avvicendamento fra imprese.
Da ultimo, la ricerca approfondisce le c.d. “clausole sociali”, sia di prima che di seconda generazione, valutandone la compatibilità con il diritto eurounitario e con la costituzione nonché riflettendo sui possibili rimedi in caso di loro violazione.The author analyzes the labour consequences of the succession between entrepreneurs, starting from a recognition of the various types of outsourcing with the related needs and main critical issues.
The survey focuses primarily on the transfer of businesses, examining European legislation and case-law and then moving on to internal legislation, trade union procedures and a specific focus on the transfer of companies in crisis.
The author then dwells on the contract, taking into account in particular the indications of authenticity, the criteria of distinction from the illicit administration of labour and the protection of workers in the event of turnover between companies.
Finally, the research deepens the "social clauses", both first and second generation, assessing their compatibility with European law and with the constitution and reflecting on possible remedies in case of their violation
Ultra Low Carbon Vehicles: New Parameters for Automotive Design
No full textAs the influence of vehicle emissions on our environment has become better understood, the UK government has recently placed urgent emphasis on the implementation of low carbon
technologies in the automotive industry through: the UK Low Carbon Industrial Strategy. The overall objective is to offer big incentives to consumers and support for the development of infrastructure and engineering solutions. This scheme however does not consider how the development of functional and experiential user value might drive consumer demand, contributing to the adoption of low carbon vehicles (LCVs) in the mass market.
With the emergence of the North East of England as the UK’s first specialised region for the development of ultra-low carbon vehicles (ULCVs), ONE North East, as a development agency for the region's economic and business development, and Northumbria University Ideas-lab have supported a project to facilitate innovation through the collaboration of technology, research and development (R&D) and business. The High Value Low Carbon (HVLC) project aims to envisage
new user value made possible by the integration of low carbon vehicle platforms with new process and network technologies. The HVLC consortium represents vehicle manufacturers and their suppliers as well as technology based companies and through an ongoing process of design concept generation the project offers a hub for innovation led enterprise.
Whilst new technological developments in areas such as power generation, nano materials, hydrogen fuel cells, printed electronics and networked communications will all impact on future automotive design, the mass adoption of low carbon technologies represents a paradigm shift for the motorist. This paper aims to describe how the mapping of new parameters will lead to new transport scenarios that will create the space for new collaborative research on user experiences supported by innovative technologies and related services
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Matteo Maria Boiardo (1441-1494)
No full textMatteo Maria Boiardo – contemporary of Sir Thomas Malory and forerunner of Shakespeare, Spenser, Milton, Cervantes, Tolkien, and C.S. Lewis – is best known as the author of the Orlando Innamorato [Orlando in Love], a poem in ottava rima organically merging Carolingian epic and Arthurian romance. He was also a lyric and pastoral poet, playwright, and translator of classical texts into the Italian vernacular. Matteo was active in Italy during the years of 1463 throughout 1494, the year of his death
Uno sguardo all'Est. Lavoro e diritti fondamentali in Russia e negli altri Paesi della Comunità di Stati indipendenti
No full textNel contributo l'autore, dopo aver esaminato i diritti fondamentali del lavoro presenti nelle Costituzioni dei Paesi della Comunità di Stati indipendenti, si sofferma sul diritto del lavoro russo. La trattazione, a carattere diacronico, abbraccia i rami principali del diritto del lavoro: il rapporto individuale, le relazioni collettive, il mercato del lavoro. L'autore rileva una sorprendente continuità nelle linee essenziali del diritto del lavoro russo, pur nel susseguirsi di sistemi socioeconomici completamente diversi. Egli conclude che il diritto del lavoro russo appartiene saldamente alla matrice europea della materia.The contribution of the author starts by examining fundamental labour rights recognised by the Constitutions of the Countries of the Community of Independent States. Then the author focuses upon Russian Labour Law, going through the history of the main branches of the discipline: the individual relationship, industrial relations, the labour market. The article finds a surprising continuity in the essential lines of Russian Labour Law, in spite of the completely different socio-economic systems that were experimented in Russia during the twentieth century. The author concludes that Russian Labour Law clearly belongs to the European matrix of the discipline
Corpo, spazio, architettura. Fenomenologia dell’esperienza spaziale Matteo Vegetti, Fabrizia Bandi (eds.), Editrice Morcelliana, Brescia 2024
No full textThe author reviews "Corpo, spazio, architettura: Fenomenologia dell’esperienza spaziale," edited by Matteo Vegetti and Fabrizia Bandi. The book examines the philosophical underpinnings of spatial experience through a phenomenological lens, engaging with both traditional and contemporary notions of how space, body, and architecture interconnect. The author highlights the text\u27s exploration of how architects and designers might integrate phenomenological insights into their work, transforming space from mere physical dimensions into lived, experienced reality. The review appreciates the book’s thematic organization, which starts with foundational theories from Merleau-Ponty and expands through discussions on virtual spaces and the future of architecture in the digital age. Through this anthology, readers gain a comprehensive view of the architectural implications of phenomenological thought, making it a critical resource for anyone involved in the conceptualization and design of space
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