Condizioni, motivazioni e percezioni dei partecipanti al MOOC RUIAP

Il contributo descrive i risultati di una rilevazione che la RUIAP ha condotto sulle reazioni dei partecipanti al suo MOOC “Individuazione degli apprendimenti pregressi per la validazione e la certificazione delle competenze” erogato sul portale EduOpen. Il MOOC, dopo la sua prima edizione (2015-2016) curata da alcune delle università associate, nel 2016 è stato riprogettato per garantire la sostenibilità della sua erogazione e trasferito sul portale EduOpen. La riprogettazione ha portato al passaggio da un modello didattico ispirato all’approccio connettivista a un modello basato esclusivamente sull’auto-apprendimento. La rilevazione delle reazioni dei partecipanti è stata fatta per mezzo di un questionario somministrato online basato su diverse aree di indagine, dall’interazione con il portale, con le risorse educative e i contenuti, alla qualità dell’insegnamento e dell’apprendimento. Per quanto è stato possibile il questionario riproduce le stesse aree di indagine del questionario somministrato alla fine della prima edizione (2015-2016). I risultati dell’indagine indicano che i partecipanti, che continuano a seguire numerosi il MOOC, apprezzano la modalità di auto-apprendimento con cui dal 2016 viene proposto sul portale EduOpen ma, allo stesso tempo, suggeriscono che esiste il bisogno di potenziare per quanto possibile la sua dimensione interattiva

Microwave Inter-Connections and Switching by means of Carbon Nano-tubes

In this work, carbon nanotube (CNT) based interconnections and switches will be reviewed, discussing the possibility to use nanotubes as potential building blocks for signal routing in microwave networks. In particular, theoretical design of coplanar waveguide (CPW), micro‐strip single‐pole‐single‐throw (SPST) and single‐pole‐double‐throw (SPDT) devices has been performed to predict the electrical performances of CNT‐based RF switching configurations. Actually, by using the semiconductor‐conductor transition obtained by properly biasing the CNTs, an isolation better than 30 dB can be obtained between the ON and OFF states of the switch for very wide bandwidth applications. This happens owing to the shape deformation and consequent change in the band‐gap due to the external pressure caused by the electric field. State‐of‐art for other switching techniques based on CNTs and their use for RF nano‐interconnections is also discussed, together with current issues in measurement techniques

The Influence of Volcano Topographic Changes on Infrasound Amplitude: Lava Fountains at Mt. Etna in 2021

Infrasound signals are used to investigate and monitor active volcanoes during eruptive and degassing activity. Infrasound amplitude information has been used to estimate eruptive parameters such as plume height, magma discharge rate, and lava fountain height. Active volcanoes are characterized by pronounced topography and, during eruptive activity, the topography can change rapidly, affecting the observed infrasound amplitudes. While the interaction of infrasonic signals with topography has been widely investigated over the past decade, there has been limited work on the impact of changing topography on the infrasonic amplitudes. In this work, the infrasonic signals accompanying 57 lava fountain paroxysms at Mt. Etna (Italy) during 2021 were analyzed. In particular, the temporal and spatial variations of the infrasound amplitudes were investigated. During 2021, significant changes in the topography around the most active crater (the South East Crater) took place and were reconstructed in detail using high resolution imagery from unoccupied aerial system surveys. Through analysis of the observed infrasound signals and numerical simulations of the acoustic wavefield, we demonstrate that the observed spatial and temporal variation in the infrasound signal amplitudes can largely be explained by the combined effects of changes in the location of the acoustic source and changes in the near-vent topography, together with source acoustic amplitude variations. This work demonstrates the importance of accurate source locations and high-resolution topographic information, particularly in the near-vent region where the topography is most likely to change rapidly and illustrates that changing topography should be considered when interpreting local infrasound observations over long time scales

Discontinuation of first-line bevacizumab in metastatic colorectal cancer: the BEAWARE Italian Observational Study

BEAWARE investigated the pattern of first-line bevacizumab early interruption in the Italian real-world setting of metastatic colorectal cancer

Local characterization of ferromagnetic resonance in bulk and patterned magnetic materials using scanning microwave microscopy

We have demonstrated the capabilities of the scanning microwave microscopy (SMM) technique for measuring ferromagnetic resonance (FMR) spectra in nanometric areas of magnetic samples. The technique is evaluated using three different samples, including a yttrium iron garnet (YIG) polycrystalline bulk sample and a thick YIG film grown by liquid phase epitaxy (LPE). Patterned permalloy (Py) micromagnetic dots have been characterized to assess the performance for imaging applications of the technique, measuring the variation of the magnetic properties of the sample along its surface. The proposed technique may pave the way for the development of high spatially resolved mapping of magnetostatic modes in different nanomagnetic and micromagnetic structures

Acute Delta Hepatitis in Italy spanning three decades (1991–2019): Evidence for the effectiveness of the hepatitis B vaccination campaign

Updated incidence data of acute Delta virus hepatitis (HDV) are lacking worldwide. Our aim was to evaluate incidence of and risk factors for acute HDV in Italy after the introduction of the compulsory vaccination against hepatitis B virus (HBV) in 1991. Data were obtained from the National Surveillance System of acute viral hepatitis (SEIEVA). Independent predictors of HDV were assessed by logistic-regression analysis. The incidence of acute HDV per 1-million population declined from 3.2 cases in 1987 to 0.04 in 2019, parallel to that of acute HBV per 100,000 from 10.0 to 0.39 cases during the same period. The median age of cases increased from 27 years in the decade 1991-1999 to 44 years in the decade 2010-2019 (p < .001). Over the same period, the male/female ratio decreased from 3.8 to 2.1, the proportion of coinfections increased from 55% to 75% (p = .003) and that of HBsAg positive acute hepatitis tested for by IgM anti-HDV linearly decreased from 50.1% to 34.1% (p < .001). People born abroad accounted for 24.6% of cases in 2004-2010 and 32.1% in 2011-2019. In the period 2010-2019, risky sexual behaviour (O.R. 4.2; 95%CI: 1.4-12.8) was the sole independent predictor of acute HDV; conversely intravenous drug use was no longer associated (O.R. 1.25; 95%CI: 0.15-10.22) with this. In conclusion, HBV vaccination was an effective measure to control acute HDV. Intravenous drug use is no longer an efficient mode of HDV spread. Testing for IgM-anti HDV is a grey area requiring alert. Acute HDV in foreigners should be monitored in the years to come

Le Reti Territoriali per l’Apprendimento Permanente. Una nuova governance per l’inclusione, la coesione sociale e la crescita

Le Reti Territoriali per l’Apprendimento Permanente rappresentano la modalità organizzativa prescelta per costituire il sistema integrato dell’apprendimento permanente. Nuovo soggetto istituzionale per la costruzione di sistemi integrati territoriali di formazione, istruzione, orientamento e lavoro, sono costituite dall’insieme dei relativi servizi, collegati organicamente alle strategie per la crescita economica, l’accesso al lavoro dei giovani, la riforma del welfare, l’invecchiamento attivo, l’esercizio della cittadinanza attiva, anche da parte degli immigrati. Introdotte dal comma 55, art. 4 della L. 92/2012, si inseriscono sin da subito da protagoniste nel progetto di costruzione del sistema nazionale dell’apprendimento permanente e di certificazione delle competenze. Le Reti, dunque, dovrebbero rappresentare le strutture portanti del sistema dell’apprendimento permanente, ma non sono ancora diffuse, riconoscibili, accessibili

Il lavoro nella learning society: la sfida delle competenze

Il volume si propone di analizzare e riflettere su come i sistemi di istruzione, formazione, lavoro e orientamento vengono interrogati dall’affermarsi di una nuova prospettiva, che individua come leva strategica delle future opportunità di sviluppo sociale, culturale ed economico, l’apprendimento permanente. Alcuni fenomeni, come la segmentazione del mercato del lavoro, la polarizzazione della struttura dell’occupazione, la digitalizzazione, uniti all’emergere di nuovi rischi sociali, quali la crescita delle disuguaglianze e di nuove povertà, l’instabilità familiare, l’emergenza abitativa, hanno alimentato inedite forme di vulnerabilità sociale. Il saggio esamina alcuni di questi elementi di criticità e delle sfide in atto, nel passaggio delle politiche sociali dalla ricerca dell'uguaglianza dei risultati all'uguaglianza delle opportunità. Riflette sull’emergere di nuove e complesse competenze cercate dal mondo del lavoro, che possono dare corpo a tali opportunità, ma anche sulla necessità di una nuova governance, che metta al centro la persona e che renda esigibile il suo diritto all’apprendimento permanente. Se la sfida delle competenze, in tale scenario, è la sfida di questo primo scorcio di millennio, può essere vinta solo nella collaborazione tra sistemi e tra organizzazioni, non lasciando sole le persone di fronte alla complessità e ai processi di divaricazione crescente. A partire da un nuovo patto per lo sviluppo tra gli attori di tali sistemi sarà possibile costruire un learnfare, come sistema basato sulla garanzia di effettivo accesso a opportunità di apprendimento, coerenti con i propri progetti di vita e con le esigenze dell’economia e del mondo del lavoro.This book aims to examine and reflect upon how systems of education, learning and guidance are being challenged by the establishment of a new perspective that regards lifelong learning as a strategic tool for the future development of social, cultural and economic development. Certain phenomena as, for example, the labour market segmentation, the polarisation of occupational structure and digitalisation, along with the emergence of new social risks, as increasing inequality and new poverty, family instability and housing crisis, have fuelled form of social vulnerability unheard of. The paper looks into some of these critical issues and ongoing challenges, emerging from the transition of social policies from a phase of search for equality of outcome to one that has equality of opportunities at its core. It explores the emergence of a requirement for new and complex skills in the world of work, which may enable opportunities for equality, but it also reflects upon the necessity of a new type of governance focussing on people and recognising their right to lifelong learning. If the demand for new competences is the challenge of this first part of the new millennium then the challenge can only be won with a close collaboration between systems and organisations, not leaving people alone in front of complexity and processes of ever increasing divide. Only with a pact for development between the actors of the systems it will become possible to build a so-called learnfare system based on a guaranteed access to learning opportunities, consistent with the individual personal life plans as well as the requirements of the economy and the world of work