169 research outputs found
Understanding Emergent Urbanism The Case of Tirana, Albania
No full texthe canonical architectural studies have handed us the idea that city is the result of a series of top-down procedures - and related documentary materials - which depict a rigid and hardly con- testable direction of development of our urban tissues. Looking at the different regulatory plans throughout which contempo- rary cities have been developed, it is quite difficult to perceive the human component of such spaces, leaving us to wander in a series of linear relations where the final form is predetermined by external judging eyes. But if we look at the city as a living being, characterized from the different complex entities that in- habit it and interact among each others, is it possible to bring the real city - or as the author underlines, the city of everyday life - close to conventional planning? [...
GIS data for Bracciano Smart Lake Initiatives
No full textGis Data relative to lake of bracciano ( RM) supporting Bracciano SmartLake initiative managed by Emanuele Perugini & Guido Tocco.
Author: Alfonso Crisci IBIMET CNR and & Massimo Perna Consorzio LaMMA
Data: Perimetral ISTAT administrative boundaries of Bracciano's Area, Bracciano Lake Catchment basin and 5 meter DEM of area ( digital elevation model) obtained troughout TIN interpolation by using elevation data ( CTR5K) retrieved from OpenData Lazio WEB Portal
Low hydrogen sulphide and chronic kidney disease: A dangerous liaison
No full textHydrogen sulphide, H(2)S, is a gaseous compound involved in a number of biological responses, e.g. blood pressure, vascular function and energy metabolism. In particular, H(2)S is able to lower blood pressure, protect from injury in models of ischaemia-reperfusion and induce a hypometabolic state. In chronic kidney disease (CKD), low plasma hydrogen sulphide levels have been established in humans and in animal models. The enzymes involved in its production are cystathionine β-synthase, cystathionine γ-lyase and 3-mercaptopyruvate sulphurtransferase. The mechanisms for H(2)S decrease in CKD are related to the reduced gene expression (demonstrated in uraemic patient blood cells) and decreased protein levels (in tissues such as liver, kidney, brain in a CKD rat model). In the present Nephrol Dial Transplant issue, in fact, Aminzadeh and Vaziri document that the alterations in this pathway complicate the uraemic state and are linked to CKD progression. They furnish a time frame in CKD and record enzyme tissue distribution. It remains to be established if low H(2)S is causally linked to CKD progression and if interventions aimed to restore the status quo ante are able to modify this picture.Hydrogen sulphide, H2S, is a gaseous compound involved in a number of biological responses, e.g. blood pressure, vascular function and energy metabolism. In particular, H2S is able to lower blood pressure, protect from injury in models of ischaemia-reperfusion and induce a hypometabolic state. In chronic kidney disease (CKD), low plasma hydrogen sulphide levels have been established in humans and in animal models. The enzymes involved in its production are cystathionine β-synthase, cystathionine γ-lyase and 3-mercaptopyruvate sulphurtransferase. The mechanisms for H2S decrease in CKD are related to the reduced gene expression (demonstrated in uraemic patient blood cells) and decreased protein levels (in tissues such as liver, kidney, brain in a CKD rat model). In the present Nephrol Dial Transplant issue, in fact, Aminzadeh and Vaziri document that the alterations in this pathway complicate the uraemic state and are linked to CKD progression. They furnish a time frame in CKD and record enzyme tissue distribution. It remains to be established if low H2S is causally linked to CKD progression and if interventions aimed to restore the status quo ante are able to modify this picture. © 2011 The Author
Street-level workers, managers and institutional tensions: a comparative ethnography of healthcare practices of in/exclusion in three Italian public organisations
No full textEste artículo está sujeto a una licencia CC BY 4.0Public organisations are fundamental actors in migrant incorporation processes, as they are in charge of assessing migrants’ entitlement and providing access to welfare services. While a lot has been written on the individual determinants of street-level decisions, the role of organisational and institutional factors in shaping implementation practices has received little attention so far. By linking the street-level bureaucracy approach and the neo-institutionalist perspective in organisational analysis, this article investigates how public organisations mediate migrant incorporation processes in the field of healthcare. Drawing on a comparative ethnographic study of three public health organisations in an Italian region, the paper suggests that, in times of institutional tensions, managers’ priorities and framings of the issue, the ways they respond to decision-makers’ goals and allocate resources for implementing them, orient - and lead to variation in - street-level healthcare practices of in/exclusion for migrants with irregular status.The author acknowledges support of the publication fee by Erasmus University and the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI)Peer reviewe
MPM hydro-mechanical modelling of flows impacting rigid walls
No full textThe study on impact mechanisms of flow-like landslides against structures is still an open issue in the scientific literature. Many researchers have employed so far either experiments or numerical methods, but the evaluation of the impact forces on mitigation obstacles remains difficult especially if the solid-fluid interaction within the flow is considered. This study shows how advanced numerical tools, such as Material Point Method, may be used in simulating those complex processes. The simulations are carried out for two well documented laboratory tests: a dry granular flow impacting a rigid wall under different geometries and testing conditions in a small-scaled flume and a saturated flow with complex propagation pattern in a centrifuge apparatus. The numerical modelling is validated against the observations and then used to explore the response of different flows impacting rigid structures in other conditions than in the experiments. The soil-fluid interaction influences the type of impact mechanism, the kinematics of the flow, and the space-time trend of the impact pressure against the structure.The presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
How rapidly do neutron stars spin at birth? Constaints from archival X-ray observations of extragalactic supernovae
No full textTraditionally, studies aimed at inferring the distribution of birth periods of neutron stars are based on radio surveys. Here we propose an independent method to constrain the pulsar spin periods at birth based on their X-ray luminosities. In particular, the observed luminosity distribution of supernovae (SNe) poses a constraint on the initial rotational energy of the embedded pulsars, via the correlation found for radio pulsars, and under the assumption that this relation continues to hold beyond the observed range. We have extracted X-ray luminosities (or limits) for a large sample of historical SNe observed with Chandra, XMM and Swift, which have been firmly classified as core-collapse SNe. We have then compared these observational limits with the results of Monte Carlo simulations of the pulsar X-ray luminosity distribution for a range of values of the birth parameters. We find that a pulsar population dominated by millisecond periods at birth is ruled out by the data
Paleokarstic fills in Iglesiente (Sardinia Italy) sedimentary processes and age
No full textThe Mount S. Giovanni caves developed mostly during Paleozoic and Mesozoic in Cambrian limestones (Gonnesa formation) locally mineralized. Their infilling, of economic interest, took place during or nearly after the volcanic Cenozoic phase. The material derives from the removal of important pedogenetic cover, with episodes of clays masses redeposition and phases of wall collapses and of concretioning. -from Author
SMEs Growth Markets: Analysis and Impact of Investment Schemes
No full textLAUREA MAGISTRALELe piccole e medie imprese (PMI) sono essenziali per l'economia di un Paese, in quanto contribuiscono in modo significativo all'occupazione, all'innovazione e alla crescita economica. Nonostante il loro ruolo critico, le PMI devono affrontare notevoli difficoltà nell'accesso ai mercati dei capitali attraverso le offerte pubbliche iniziali (IPO). Negli ultimi anni, le autorità di regolamentazione si sono adoperate per creare un panorama più favorevole per queste aziende, riducendo i requisiti e istituendo mercati dedicati come i “mercati di crescita per le PMI” e creando incentivi su misura per affrontare il cosiddetto “IPO Problem”.
Questo tema è ampiamente discusso in letteratura, ma non è stato esplorato nel dettaglio su questi nuovi mercati, inoltre l'impatto degli incentivi non è stato mai approfondito. Questa tesi analizza le sfide e le opportunità che le PMI devono affrontare nell'accesso ai mercati pubblici dei capitali, concentrandosi sul ruolo dei programmi di investimento nell’incentivare l'attività di IPO e la liquidità post-IPO. In particolare, vengono esaminati quattro “mercati di crescita per le PMI” in Europa: Euronext Growth Milan, LSE Alternative Investment Market (AIM), Euronext Growth Paris e NASDAQ First North.
In primo luogo, viene condotta un'analisi comparativa, analizzando i mercati in termini di composizione, attività del mercato primario e secondario, normative, ecosistema e incentivi. Viene poi condotto uno studio empirico per valutare l'impatto degli schemi di investimento sui mercati primari, misurando l'attività di IPO, e sui mercati secondari, misurando l'attività di trading. I risultati dei modelli di regressione concludono che gli schemi di investimento svolgono un ruolo significativo nello stimolare le IPO, influenzando positivamente le decisioni delle società di quotarsi, mentre non è stato riscontrato un impatto significativo sull'attività di trading. Ciò sottolinea la necessità di ulteriori riforme per migliorare la liquidità post-IPO e aumentare l'attrattiva per gli investitori.Small and medium enterprises (SMEs) are essential to a country's economy, significantly contributing to employment, innovation, and economic growth. Despite their critical role, SMEs face substantial challenges in accessing capital markets through Initial Public Offerings (IPOs). In recent years, regulators have worked to create a more favorable landscape for these companies by reducing requirements and establishing dedicated venues like "SMEs Growth Markets" and creating tailored incentives to address the so-called “IPO Problem.”
This issue is widely discussed in the literature, but a detailed focus on these new markets and the impact of incentives has not been fully explored. This dissertation investigates the challenges and opportunities SMEs face in accessing public capital markets, focusing on the role of investment schemes in shaping IPO activity and post-IPO liquidity. Specifically, it examines four key SMEs Growth Markets in Europe: Euronext Growth Milan, LSE Alternative Investment Market (AIM), Euronext Growth Paris, and NASDAQ First North.
First, a comparative analysis is conducted, analyzing the markets in terms of composition, primary and secondary market activity, regulations, ecosystem, and incentives. An empirical study is then performed to assess the impact of investment schemes on primary markets, measuring the IPO activity, and secondary markets, measuring the trading activity. The results of the regression models conclude that investment schemes play a significant role in stimulating IPOs, positively influencing companies' decisions to list, while no significant impact on trading activity was found. This underscores the need for further reforms to improve post-IPO liquidity and enhance investor attractiveness
Bara and Viala, or Virtue Rewarded: The Memorialization of Two Child Martyrs of the French Revolution
No full textThis article explores the commemoration of republican child martyrs Joseph Bara and Joseph-Agricol Viala, in Year II (1793–4), during the French Revolution. It compares the official interpretation of their deaths with the subsequent appropriation of this narrative in wider culture. The article argues that leading revolutionaries—notably Robespierre, Barère and David—utilized the heroic deaths of children specifically for their associations with natural virtue and innocence, setting the tone for a new model of republican morality. It then demonstrates that the state’s narrative was widely circulated, yet appropriated and commodified, using popular prints and theatre as case studies. This article thus demonstrates the limits of official control over French Revolutionary culture and traces the fragmented roots of what would become a revived memory cult in the Third Republic.Copyright © 2021 Oxford University Press. This is a pre-copy-editing, author-produced version of an article accepted for publication in French History following peer review. The definitive publisher-authenticated version Antonia Perna, Bara and Viala, or Virtue Rewarded: The Memorialization of Two Child Martyrs of the French Revolution, French History, Volume 35, Issue 2, June 2021, Pages 192–218 is available online at: doi.org/10.1093/fh/craa07
Insurtech in the Italian insurance market : an insightful view from incumbents
No full textLAUREA MAGISTRALEQuesto lavoro di tesi Magistrale ha come obiettivo l’analisi di quella che è la tempesta silenziosa in cui si trova il mondo assicurativo: l’insorgere del fenomeno Insurtech. A dare forza a quest’onda di cambiamento ci sono vari trend: trasformazioni nelle abitudini dei client assicurativi, nuovi business models adottati dalle Compagnie, nuove normative e tecnologie sempre più pervasive. Lo scopo è di fornire, per il mercato assicurativo Italiano, una view dall’interno capace di evidenziare in modo chiaro la posizione degli incumbents di settore nei confronti di queste pressioni. Nella prima sezione, un’analisi generale dei trend socio-economici che stanno colpendo l’industria è fornita. Insieme a questi, vengono definite le caratteristiche generali del movimento Insurtech e le principali tecnologie adottate. Nella sezione successiva l’attenzione si spostata sull'Italia, andando a considerare le specificità del comparto assicurativo del nostro paese. Il lavoro si focalizza quindi sul ramo Danni, auto e non auto con l’obiettivo di capire se il terreno è fertile per la nascita di soluzioni Insurtech anche nel mercato domestico. In questa sezione una breve rassegna delle principali Start-up Insurtech Italiane è fornita. Infine, ciò che aggiunge valore all'intero lavoro è un’intervista sottoposta al management delle principali imprese assicurative Italiane. Attraverso le parole di chi vive dall'interno questo periodo di profonda trasformazione, sarà possibile chiarire la posizione delle Compagnie che operano in Italia nei confronti dell'Insurtech.This master dissertation analyses the silent storm in which the Insurance industry finds itself: the insurgence of Insurtech. Fueling this storm there are many pressures involving the industry: changes in customers habits, business models reshaping, regulation and new technologies are among the most relevant ones.
The aim is to provide for the Italian Insurance market an insightful view, able to clarify what is the position of Incumbents towards those pressures. In the first section of the work, an analysis is made on a general level looking at the socio-economic trends affecting the industry, at the enabling technologies for the industry remodeling and at the general characteristics of the Insurtech movement. Then, a closer look is given to the Italian market. Many country specific reasoning hold in this stage. The focus is posed on the P&C segment, both motor and non-motor. Different peculiarities make national insurance market differ from what is observable in other countries: the objective is to understand if the ground is breed enough to see the insurgence of Insurtech solution. A quick analysis of main Italian Insurtech startups is then provided. Finally, an interview submitted to the management of main Insurance companies operating in Italy provide value to the whole research work. The words of those people living inside the industry, will clarify the position of Italian market facing the evolutionary pressure of Insurtech
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