Search results for "ISM [galaxies]"
showing 10 items of 699 documents
La sostenibilità delle destinazioni turistiche: la misurazione per indicatori
2013
Tourism often has had (and has) detrimental outcomes on destinations but the need and the rele-vance of a sustainable development of tourism was only recently recognised. Sustainable tour-ism is a quite recent concept, derived by the notion of sustainable development; it is usually re-lated to environmental issues and particularly to natural resources waste. Wider definitions are now emerging in the scientific community including, usually, social and economic dimensions together with the environmental one. Although, the intrinsic multidimensional nature of sustain-ability and the high number of stakeholders to be involved in its evaluation (e.g. policy makers, administrators, local resident…
An X-ray characterization of the central region of the supernova remnant G332.5-5.6
2015
Aims. We present an X-ray analysis of the central region of supernova remnant (SNR) G332.5-5.6 through an exhaustive analysis of XMM-Netwon observations with complementary infrared observations. We characterize and discuss the origin of the observed X-ray morphology, which presents a peculiar plane edge over the west side of the central region. Methods. The morphology and spectral properties of the X-ray SNR were studied using a single full frame XMM-Netwon observation in the 0.3 to 10.0 keV energy band. Archival infrared WISE observations at 8, 12 and 24 μm were also used to investigate the properties of the source and its surroundings at different wavelengths. Results. The results show th…
Effect of Mg2+ ions on competitive metal ions adsorption/desorption on magnesium ferrite : mechanism, reusability and stability studies
2021
The adsorption behavior of magnesium ferrite in single- and multicomponent metal ions solutions in the presence of Mg2+ ions were studied. A dramatic decrease in the adsorption capacity of magnesium ferrite towards Mn2+, Co2+, and Ni2+ ions for comparison study of single- and multicomponent solutions was established. The affinity of the sorbent in accordance with the maximum sorption capacities increases in the following order Cu2+ > Co2+ > Ni2+ > Mn2+. High efficiency of magnesium ferrite regeneration (~100%) with aqueous solutions of magnesium chloride in the concentration range of 0.001-0.1 M was shown. The low degree of toxic metal ions desorption combined with XRD, IR spectroscopy, and…
Autism spectrum disorder in Italy: demand for an integrated epidemiological surveillance system.
2016
Autism spectrum disorder (ASD) is a complex neurodevelopmental syndrome of emerging public health concern, according to a documented significant increase of diagnosed cases of ASD in Europe and USA. In Italy, actually, it is not possible to estimate at national level a reliable ASD occurrence by using existing health and scholastic data flows. The lack of information has implications on social and healthcare services dedicated to subjects affected by ADS. The database of the Italian institute in charge of social and security assistance was accessed at the provincial level to investigate the ASD cases occurred in the Palermo province. The official reports of all subjects visited in 2013 by I…
Zasady interkul'tural'nosti v dydaktyci slov'jans'kych mov dlja movnych poserednykiv u vyščij osviti Italiji
2019
Intercultural competence is a range of skills, which lead to constructive and appropriate communication with other cultures. Difficulty in communicating with different part of European society, immigrants included, may result not only from linguistic misunderstanding, but also from cultural differences. This fact led to introducing the profession of linguistic and/or cultural mediator. After Bologna Process the mediation courses were provided by European and Italian universities. In these courses students can learn about inter-linguistic and intercultural communication through the study of European and non-European languages. Students have to be taught not only in translation and interpreti…
A Preliminary Study on Photic Driving in the Electroencephalogram of Children with Autism across a Wide Cognitive and Behavioral Range.
2022
Intermittent photic stimulation (IPS) is a useful technique in electroencephalography (EEG) to investigate the neurophysiological anomalies of brain activity. Although not an active task, IPS has also been explored in ASD; it is thought to capture local potential oscillators at specific frequencies and perhaps tap into rhythmic activity in a way that general resting-state recordings cannot. Previous studies suggest that individuals with ASD showed photic driving reactivity predominantly at lower frequencies of stimulation. In our study we used IPS to measure rhythmic oscillatory activity in a sample of 81 ASD children. We found a significant correlation linking ASD children with photic driv…
Baltic Journal of Psychology, Vol. 21, N 1&2
2020
Economic conditions of islands and policies to rebalance territorial disparities
2022
The focus on island contexts stems from the fact that they present peculiarities related not only to the morphology of the territory but also to the economic and social system that characterises them. The territory of the European Union includes more than 3,000 islands in the Pacific, Atlantic and Indian Oceans, the Baltic Sea, the North Sea, the Mediterranean Basins and the Caribbean. The islands share similar social, geographical, economic, and environmental characteristics. Con- sidering only island regions, the European Union recognises more than 280 islands, identified as those territories surrounded by the sea, having an area of more than 1 km2, located at least one kilometre from the…
Cruise tourism effetcts in the EU Islands' economies
2007
The theme of ‘the island condition and the characteristics of the EU territories surrounded by the sea has already been treated in a number of studies and in some recent research projects which have highlighted disparities, structural disadvantages and the presence of an economy which relies excessively on tourism. The aim of this paper is to show the incoming tourism or daily visitors’ flows generated by cruises in the EU islands, and to present the tourist expenditure matrix and the composition of the main expenses. The results seem to show that local economies generated by cruise daily visitors if combined with local productions, could have a good level of economic impact.
Il lavoro nel turismo
2019
Il contributo offre una breve disamina delle principali caratteristiche del mercato del lavoro nel settore del turismo. A partire dall’elemento della stagionalità, che si traduce in esigenze di flessibilità e dinamicità del mercato, si individuano le tipologie contrattuali cui prevalentemente si suole far ricorso. Con l’ausilio di risultanze empiriche, desumibili dalle principali banche dati a disposizione, viene restituito un quadro di modelli organizzativi prevalenti (il contratto di lavoro a tempo determinato, il part-time, il contratto di apprendistato, il lavoro intermittente); in cui, dunque, i contratti diversi dai “classici” modelli a tempo indeterminato e/o tempo pieno costituiscon…