Search results for "REM"

Word and item features that affect measurement of vocabulary size in a multiple choice vocabulary task

1999

Volatility risk premia and financial connectedness

2014

In this paper we use the Diebold Yilmaz (2009 and 2012) methodology to construct an index of connectedness among five European stock markets: France, Germany, UK, Switzerland and the Netherlands, by using volatility risk premia. The volatility risk premium, which is a proxy of risk aversion, is measured by the difference between the implied volatility and expected realized volatility of the stock market for next month. While Diebold and Yilmaz focus is on the forecast error variance decomposition of stock returns or range based volatilities employing a stationary VAR in levels, we account for the (locally) long memory stationary properties of the levels of volatility risk premia series. The…

A Low-Cost Smartphone Sensor-Based UV Camera for Volcanic SO2 Emission Measurements

2017

Recently, we reported on the development of low-cost ultraviolet (UV) cameras, based on the modification of sensors designed for the smartphone market. These units are built around modified Raspberry Pi cameras (PiCams; ≈USD 25), and usable system sensitivity was demonstrated in the UVA and UVB spectral regions, of relevance to a number of application areas. Here, we report on the first deployment of PiCam devices in one such field: UV remote sensing of sulphur dioxide emissions from volcanoes; such data provide important insights into magmatic processes and are applied in hazard assessments. In particular, we report on field trials on Mt. Etna, where the utility of these devices in quantif…

Spatially resolved SO2 flux emissions from Mt Etna

2016

Abstract We report on a systematic record of SO2 flux emissions from individual vents of Etna volcano (Sicily), which we obtained using a permanent UV camera network. Observations were carried out in summer 2014, a period encompassing two eruptive episodes of the New South East Crater (NSEC) and a fissure‐fed eruption in the upper Valle del Bove. We demonstrate that our vent‐resolved SO2 flux time series allow capturing shifts in activity from one vent to another and contribute to our understanding of Etna's shallow plumbing system structure. We find that the fissure eruption contributed ~50,000 t of SO2 or ~30% of the SO2 emitted by the volcano during the 5 July to 10 August eruptive inter…

Lidar detection of carbon dioxide in volcanic plumes

2015

Volcanic gases give information on magmatic processes. In particular, anomalous releases of carbon dioxide precede volcanic eruptions. Up to now, this gas has been measured in volcanic plumes with conventional measurements that imply the severe risks of local sampling and can last many hours. For these reasons and for the great advantages of laser sensing, the thorough development of volcanic lidar has been undertaken at the Diagnostics and Metrology Laboratory (UTAPRAD-DIM) of the Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA). In fact, lidar profiling allows one to scan remotely volcanic plumes in a fast and continuous way, and with high s…

Volcanic Plume CO2 Flux Measurements at Mount Etna by Mobile Differential Absorption Lidar

2017

Volcanic eruptions are often preceded by precursory increases in the volcanic carbon dioxide (CO2) flux. Unfortunately, the traditional techniques used to measure volcanic CO2 require near-vent, in situ plume measurements that are potentially hazardous for operators and expose instruments to extreme conditions. To overcome these limitations, the project BRIDGE (BRIDging the gap between Gas Emissions and geophysical observations at active volcanoes) received funding from the European Research Council, with the objective to develop a new generation of volcanic gas sensing instruments, including a novel DIAL-Lidar (Differential Absorption Light Detection and Ranging) for remote (e.g., distal) …

Le politiche di contrasto al rischio da maremoto: il caso di Stromboli

2020

This chapter, intending to be part of the reasoning on the perception of risk from extreme natural events, intends to describe the main contents of the National Emergency Plan for volcanic events of national importance on the island of Stromboli (ME) prepared in 2015 by the Department for the Civil Protection (DPC). The volcanic island of Stromboli is in fact largely exposed to the risk associated with the activities of the volcano of the same name, especially that of the tsunami. The effusive activity of the Stromboli in fact causes a marked instability of the slope known as Sciara del Fuoco which can induce, as happened at the end of 2002, a tsunami. The contribution, starting from a desc…

Els canvis del discurs nacionalista espanyol com a conseqüència de l'auge de Vox

2021

L’actualitat política i social del nostre país ens porta necessàriament a parar atenció en l’auge del partit ultradretà Vox. Aquest partit va sorgir al desembre del 2013, com a conseqüència de les disputes internes del Partit Popularoriginades per l’erosió del partit arrelde la crisi econòmica del 2008. No obstant, no va ser fins a les eleccions andaluses del 2018 que Vox va aconseguir representació parlamentaria (llevat d’algunes eleccions d’àmbit local on va obtenir alguns regidors al 2015) tot i haver-se presentat sistemàticament. En aquest treball es fa una anàlisi del discurs de Vox a les seues xarxes socials per tal d'observar de quina manera contribueix als canvis en el discurs nacio…

Intentiolähtöinen lähestymistapa käytettävyyttä koskevien vaatimusten määrittelyyn : kuluttajamarkkinoille suunnatun innovatiivisen ohjelmistotuottee…

2012

Kielikäsitykset vanhustyössä - asukkaiden, hoitajien ja esimiesten käsityksiä hyvästä vuorovaikutuksesta ja kielenkäytöstä

2018

In this article, we apply critical discourse analysis and ethnography to examine conceptionsand experiences of inclusive interaction and language use in the context of eldercare in aretirement home. Our data consist of interviews with residents, nurses and managers intwo bilingual eldercare units, as well as ethnographic observations of communication andlanguage use in these units. Our analysis focuses especially on language ideologies andmetalinguistic aspects of inclusive language in the context of eldercare. On the basis of ouranalysis, we suggest that four elements are particularly central to elderly-centric language: 1)the quality, quantity and tone of interaction; 2) the practices of …