1,720,971 research outputs found
Analisi trimestrale del Sistema Energetico Italiano I trimestre 2022
Full text linkNella prima parte del 2022 le tensioni sui mercati dell’energia, che già nell’ultimo trimestre del 2021 avevano portato ad aumenti senza precedenti dei prezzi sui mercati all’ingrosso del gas e dell’elettricità, sono state ulteriormente rafforzate dalla guerra in Ucraina e dalle sanzioni imposte dai paesi occidentali alla Russia. I prezzi del gas, che a metà febbraio erano scesi del 40% rispetto alla media di dicembre, sono stati sospinti a nuovi massimi storici a marzo, tanto che nella media del I trimestre risultano in ulteriore aumento congiunturale del 4% (il TTF, a 98 €/MWh; +430% rispetto al I trimestre 2021). Nel contempo si è riavvicinato ai massimi storici anche il petrolio, che a marzo è tornato a superare i 100 /bl la media del Brent nel I trimestre, +65% sul I trimestre 2021 e massimo dal 2014), e nuovi record ha raggiunto anche il carbone, così da determinare una crisi dei prezzi dell’energia senza precedenti per intensità e ampiezza. La crisi ha già avuto un impatto molto forte sul tasso di inflazione, a maggio salito nell’eurozona al di sopra dell’8%, e più in generale sull’attività economica, tanto che le previsioni di crescita per il 2022 sono state riviste pesantemente al ribasso. Inevitabilmente, anche la dinamica della domanda di energia ha già subito una brusca frenata: per l’Eurozona si stima nel I trimestre un aumento di poco più dell’1% rispetto a un anno prima, a fronte del +5,7% registrato nel IV trimestre 2021. Ciononostante, i prezzi record del gas e poi la rinnovata priorità assunta dalla sicurezza energetica hanno portato a una forte ripresa dei consumi di carbone nella generazione elettrica, con conseguente aumento delle emissioni di CO2, stimate a +5,4% nel I trimestre nell’Eurozona (dopo il +4% complessivo dell’anno passato; +8% nel IV trimestre)
Il tempo dello Smart Working. La PA tra conciliazione, valorizzazione del lavoro e dell'ambiente. Primi risultati dell'indagine nazionale sul lavoro e telelavoro nel settore pubblico
Full text linkLa prima indagine nazionale sulle forme di lavoro a distanza nella PA è un caso studio di policy integrata che si rivolge agli ambiti del lavoro, dell’innovazione organizzativa, del benessere organizzativo delle persone e dello sviluppo sostenibile delle città. Per valutare gli effetti ambientali della mobilità evitata è stata messa a punto una metodologia che ha consentito di stimare i potenziali di contenimento di consumi e di emissioni di gas serra e di inquinanti atmosferici. Nel suo insieme l’indagine descrive un processo dinamico in cui sono ripensate anche le procedure e gli strumenti dell’azione amministrativa, all’interno del quale il rapporto con i dipendenti viene posto sempre più al centro della progettazione. Con il lavoro a distanza le persone e l’organizzazione escono rafforzate per efficienza, produttività e soddisfazione, anche se permangono diverse fragilità e resistenze che richiedono l’attivazione di ulteriori strategie di intervento
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Accessibility Measures to Evaluate Public Transport Competitiveness: The Case of Rome and Turin
Full text linkThe transport sector worldwide relies heavily on oil products, and private cars account for the largest share of passenger mobility in several countries. Public transport could represent an interesting alternative under many perspectives, including a decrease in traffic, pollutants, and climate emissions. However, for public transport to succeed, it should be attractive for final users, representing a viable alternative to private mobility. In this work, we analyse the spatial distribution of public transport service provision within two metropolitan cities, considering the three key dimensions of mobility, competitiveness, and accessibility of public transport. The results show that private car performs better than public transport in all scopes considered, and that performance indicators are highly variable among city areas, indicating inequalities in social and environmental sustainability in urban systems. The outcomes of the analysis provide interesting insights for policy makers and researchers that deal with similar topics, and can also be extended to other cities and countries
Potential Benefits of Remote Working on Urban Mobility and Related Environmental Impacts: Results from a Case Study in Italy
Full text linkRemote working is increasingly seen as an effective model in several countries in the last decade, mainly thanks to the development of information and communication technologies in support of common daily working tasks. The emergence of the COVID-19 pandemic has represented a pivotal moment for the adoption of remote working in multiple sectors, with positive effects on the environmental impacts caused by the daily commuting of workers. However, due to the fact that pandemic-induced remote working has represented a major forced experiment on a global scale, and that it has often been imposed rather than chosen by employees, workers’ well-being has not always been ensured. This research work presents an analysis of a wide survey of remote workers in public administrations in four different provinces in Italy, with the aim of assessing the main characteristics of the users and the related environmental benefits. Survey data refer to remote workers before COVID-19, thus representing workers who have freely chosen to work from home for different reasons. The results of this work represent a useful tool with which to support the definition of new remote work strategies that could help policy makers reduce a part of the systematic mobility demand. We have also calculated average energy and emission savings to provide useful indicators for a preliminary estimation of the potential environmental benefits of remote working. Considering the entire sample of respondents, workers who would have commuted at least partially by car have saved on average 6 kg of CO2 per day thanks to remote working (with an average round-trip commuting distance of approximately 35 km). The current results will be supplemented by the results of a new survey underway, aimed at evaluating the differences of remote working experiences during the emergency response to COVID-19
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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