Search results for "Greece"
showing 10 items of 161 documents
Gas geochemistry and preliminary CO2 output estimation from the island of Kos (Greece)
2017
Several gas samples have been collected from natural gas manifestations at the island of Kos. Most of them are found underwater along the southern coast of the island. On land two anomalous degassing areas have been recognized. These are characterised by lack of vegetation and after long dry periods by the presence of sulfate salts efflorescences. Almost all the gases are CO2-dominated (CO2 ranging from 88 to 99%) with minor amounts of N2 (up to 7%) and CH4 (up to 2.6%). Only the on-land manifestations have also significant contents of H2 (up to 0.2%) and H2S (up to 0.3%). Only one underwater manifestation is N2-dominated (61-99%) with CH4 (0.6-11%) and low CO2 (0.1-26%). The isotopic compo…
Stranieri. Figure dell'Altro nella Grecia antica
2020
l libro indaga, nel mondo greco antico, la divisione concettuale in “Noi” e “gli Altri” (e i connessi modi di pensare lo straniero), i rapporti tra il primo gruppo e il secondo (con particolare attenzione alle esperienze di gestione nonviolenta di tali rapporti), il diritto di cittadinanza e, più in generale, la convivenza in una società multiculturale. Il primo capitolo affronta il tema dell’ospitalità: nel mondo omerico l’accoglienza dello straniero aristocratico, ma anche del mendicante, si presenta non come un atto di carità individuale ma come una vera e propria istituzione sotto l’egida della divinità. Più tardi, nella struttura della polis, l’ospitalità diviene, nella forma della pro…
Geochemistry of the thermomineral waters in Greece
2020
Many geothermal areas of Greece are located in regions affected by Miocene or Quaternary volcanism and in continental basins characterized by elevated heat flow. Moreover, the majority of them is found along the coast as well as in islands of the Aegean Sea and thus thermal water is often brackish to saline due to marine intrusion into coastal aquifer. In the present study, almost 300 thermal and cold mineral water samples were collected along the Hellenic territory with their physicochemical parameters (temperature, pH, electrical conductivity and Eh) and the amount of bicarbonates (titration with 0.1N HCl) being determined in situ. Additionally, gases, found either in free or dissolved ph…
Origin of methane and light hydrocarbons in natural fluids emissions: A study from Greece.
2018
Abstract Greece, a country characterised by intense seismic and volcanic activity, has a complex geodynamic and geological setting that favours the occurrence of many gas manifestations. In this study, we address the origin of CH 4 and light hydrocarbons in cold and thermal emissions discharging along the Hellenic territory. Also, we investigate their possible relationship with the main geochemical composition of the gases and the different geological settings of the sampling sites. For this purpose we collected 101 new samples that were analysed for their chemical (O 2 , N 2 , CH 4 , CO 2 , He, Ne, Ar, H 2 , H 2 S and C 2 -C 6 hydrocarbons) and isotopic (R/R A , δ 13 C-CO 2 , δ 13 C-CH 4 a…
Trace elements mobility in soils from the active hydrothermal area of Nisyros (Greece)
2014
Nisyros Island, Greece, is a stratovolcano known for its intense hydrothermal activity. On June 2013, during a multidisciplinary field campaign, soil samples were collected in the caldera area to determinate the main mineralogical paragenesis and to investigate the distribution of trace elements concentrations and the possible relationship to the contribution of deep originated fluids. Soil samples were analysed with XRD and for the chemical composition of their leachable (deionized water) and near total (microwave digestion) fraction both for major and trace elements. All data were compared to a local background soil. The results allow to divide the samples in 2 groups: Lakki Plain and Ste…
CO2 release to the atmosphere from thermal springs of Sperchios Basin and northern Euboea (Greece): The contribution of “hidden” degassing
2020
Abstract Greece is a region characterised by intense geodynamic activity that favours the circulation of hydrothermal fluids in the crust transporting volatiles from either the deep crust or the mantle to the surface. Elevated heat flow values are detectable at Sperchios Basin and North Euboea (central Greece), two areas defined by a system of deeply rooted extensional faults and Quaternary volcanic activity. This setting contributed to the formation of numerous hydrothermal systems, which are mostly expressed as CO2-rich thermal springs with intense bubbling. The CO2 output from six bubbling pools has been determined by flux measurements with the use of the floating chamber method. The hig…
Masse straniere nelle città: narrazioni greche delle pratiche di mescolanza etnica
2018
Nel mondo greco, la mescolanza etnica viene considerata un vero problema solo quando i gruppi sono numerosamente consistenti. Le valutazioni e le forme di tale fenomeno variano nel tempo. In epoca classica il regime multietnico viene presentato come un rischio per l’unità dal punto di vista politico e militare della città che lo adotta. In periodo ellenistico-imperiale, la mescolanza di popoli è soprattutto sinonimo di alta conflittualità sociale pericolosa per la sussistenza stessa della città in quanto spazio di convivenza quotidiana. In entrambe le epoche le soluzioni praticate vanno da quella di un multiculturalismo che giustappone i vari gruppi etnici a quella di un’intercultura che mi…
La funzione tecnica e il mestiere dell'artigiano nella Grecia antica tra merito e responsabilità. Una rassegna critica
2017
This paper is a critical essay on the social value of craftsmen in ancient Greece as well of the merit and ethic responsibility connected to the social use of their skills and forms of knowledge, the so-called technai. On one hand a low grade of social consideration was attributed to craftsmen, especially among the upper classes in the Greek cities; on the other hand, craft and technical skills were an essential medium for all the material products and commodities to be supplied for the citizens. The origins of this ambiguous relationship between society and technical skills seem to lie in the particular social and political conditions of Greek craftsmen, mostly foreign people at the dispos…
L'uomo e il suo ambiente. Al di là dell'opposizione natura/cultura
2021
Il saggio rappresenta la prosecuzione delle ultime ricerche di Claude Calame, grecista di fama mondiale: dopo il Prometeo genetista (Sellerio, Palermo 2016, ed. or. Paris 2011), adesso lo studioso svizzero propone una riflessione sui rapporti tra l’essere umano e il suo ambiente, maturata sulla base del serrato confronto tra l’idea originaria, greca, di physis e la nozione di ‘natura’ per come essa si è sviluppata a partire dal pensiero illuministico e deterministico. Dei cinque capitoli in cui il saggio è complessivamente strutturato, il primo (dal titolo En Grèce ancienne : l’homme et son milieu) ricostruisce con accuratezza storico-filologica e acume critico il concetto greco di physis, …
Emotional intelligence in Greek teacher education : Findings from a short intervention
2021
AbstractEmotional intelligence (EI) is widely known to be crucial for professional development in education, and it is a curricular component of Greek teacher education. Still, there is little information available on student teachers’ EI. The aim of this study was to explore whether student teachers’ trait EI can be developed through a two-week, EI-focused intervention. The study followed a quasi-experimental design with a mixed method approach, using the Trait Emotional Intelligence Questionnaire-Short Form (Greek version) (N = 42) and reflective emotion diaries (N = 19). The participants were third-year undergraduate students studying primary education and teaching at the University of C…