Search results for " app"

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…

Electrochemical sensor for phosphate ions based on laser scriber reduced graphene oxide

2022

This preliminary work shows a new and innovative way to produce laser scribed reduced graphene oxide (LSGO) electrodes using different porous substrates (ranging from paper to plastic and fabric). The obtained electrodes were also tested as electrochemical sensors towards the detection of phosphate ions in water. To obtain the electrodes, a water suspension of GO was filtered on top of substrate (such as Whatman® filter paper) and a complete sensor was obtained from its reduction using a CO2 laser. The electrode is composed of working and counter electrodes made of LSGO and a reference electrode of a Ag/AgCl obtained by using a commercial AgCl conductive paste. Phosphate ions were detected …

Citizen Response in Crisis : Individual and Collective Efforts to Enchance Community Resilience

2014

This paper reports on the process and findings of an extensive research project with the aim of investigating present initiatives and approaches within the area of community resilience and citizen involvement. The paper specifically addresses which emerging sociotechnical approaches can be discerned within these initiatives. The discussion is structured within three categories of potential voluntary engagement; organized volunteers, semiorganized individuals, and “nonorganized” individuals. The empirical material assembled in the research project is contrasted with contemporary international research literature regarding sociotechnical means for enhancing community resilience. Swedish appro…

Ontology and protocol secure for SCADA

2014

In this work, we present a semantic cyber security system and we study its semantic intelligent systems vulnerabilities, focusing on the semantic attacks. For resolving semantic problems we propose a security global solution for the new generation of SCADA systems. The proposed solution aims at protecting critical semantic SCADA processes from the effects of major failures and semantic vulnerabilities in the modern IT-SCADA network. We used a security block in the global network access point, security protocols deployed in different network (OSI) levels and security ontologies deployed in security devices. We used our mixed coordinates (ECC) cryptography solution, this is an encryption tech…

Challenging Transmission Modes of Teaching in Science Classrooms : Enhancing Learner-Centredness through Dialogicity

2017

There is an ongoing reform towards more inquiry-based teaching in school curriculum policy in South Africa. Reform towards more inquiry-based approaches is already integrated in pre-service teacher education programmes. As inquiry-based approaches have been gaining momentum worldwide, there is an increasing concern that dialogic interaction in classroom communication is being neglected. This is especially within teacher-orchestrated classroom interactions that should foster greater learner centredness and thus authentic scientific inquiry. In learner-centred teaching approaches, student contributions should be explicitly taken into account as part of classroom interactions in science. Learn…

Perceived status and value

2017

This article examines how students in a multidisciplinary project-based learning course involving real customers perceive their interactions with their customers. The authors conducted a qualitative study and analysed students’ learning reports by means of a thematic network analysis. The analysis shows how students perceive their status in relation to their customers and how their perceptions of their work affect how they see the value of the projects. The authors consider their empirical findings in the context of the existing literature on university–industry collaboration and thereby summarize different scenarios of the contrasting working practices and priorities in academia and indus…

Hothousing: Utilising industry collaborative problem-solving practices for STEAM in schools

2022

Collaborative problem solving (CPS) has been widely used in both industry and in schools over at least the last twenty years. The Industry Hothousing variant of CPS in its adult format is an intensive, time-constrained workshop based process designed to build mutual trust between customers and industry experts in order to synergically develop creative solutions together. Its potential use in schools raises two important questions: Firstly, what degree of structure and support is required to unleash student creativity and enhance learning - as in industry or does the student need more structured methods including explicitly being taught collaborative problem solving skills? Secondly, is CPS …

Teachers' emotions related to students : a critical review

2014

Opettajien tunteita on tutkittu yhä enemmän muutaman kuluneen vuosikymmenen aikana. Tämän kirjallisuuskatsauksen tarkoituksena on esitellä ja arvioida viimeaikaisia tutkimuksia, jotka koskevat opettajien oppilaisiin liittyviä tunteita. Lisäksi tarkastelussa ovat englanninopettajien oppilaisiin liittyvät tunteet. Tämä katsaus on osa pro gradu -tutkielmaani Opettajankoulutuslaitoksella. Tutkimus lähestyy tunteita relationaalisesta näkökulmasta. Sen mukaan tunteet ovat pääosin sosiaalisia ja syntyvät vuorovaikutuksessa ympäristön ja muiden ihmisten kanssa. Tunne on reaktio sosiaaliseen, ihmisen tärkeäksi kokemaan tapahtumaan ja tunne myös vaikuttaa ihmisen toimintaan. Relationaalinen lähestymi…

"Kyllä minä tästä selviän" : aikuisopiskelijat koulutustarinansa kertojina ja koulutuksellisen minäpystyvyytensä rakentajana

2011

La metodica wastewater based epidemiology come proxy di quantificazione del consumo di sostanze stupefacenti nella popolazione: l’esperienza della ci…

2016

INTRODUZIONE Le istituzioni europee e la comunità scientifica hanno, recentemente, definito un nuovo modello di sorveglianza attiva della potenziale diffusione delle droghe nella collettività, la Wastewater Based Epidemiology (WBE), attraverso la ricerca analitica delle molecole e dei loro metaboliti nelle acque reflue cittadine. Lo scopo di questo lavoro è stato la valutazione di una preliminare applicazione di METODIca WBE nella città di Palermo, poco studiata in precedenti analisi a livello nazionale e internazionale. METODI Sono stati prelevati 28 campioni (2 litri cad) di refluo medio delle 24 ore in ingresso ai due depuratori di Palermo (WP1=45.000 ab. eq.; WP2=330.000 ab. eq.) in un …