1,721,005 research outputs found
An experimentation on the limits and potential of Renewable Energy Communities in the built city: buildings and proximity open spaces for energy decentralization
No full textEnergy Transition commonly refers to changes during the time of a specific geographical unit, but rarely considers changes in the spatial organization of the energy system and how urban area, place and scale can shape it. Considering the geographies of a low-carbon energy transition means not only understanding and mapping the consequences of the policies implemented in a place, but also assuming some significant implications, such as the spatial differences of places and the interactions that take place within them at different scales, thus activating creative processes of change.
In this context, the paper explores the potentialities and limitations of decentralized energy production systems in urban environments. With the aim of implementing climate mitigation actions, it analyzes how the structure and the spatial organization of some different built-up urban districts in Rome can affect the configuration and the sizing of a decentralized renewable energy production system.
The results of the first analysis in the pilot cases of Testaccio, Balduina and Prima Porta show the impact of scale difference on the configuration of Renewable Energy Communities. Investigating how the organization of the built-up urban districts can influence the decentralized energy system, the paper highlights not only the supply of renewable energy but also the balance between demand and supply of energy for different local uses and the reciprocal role between buildings and proximity open spaces could have a key role in the urban energy transition process. Inevitably, this balancing act will depend on the specific characteristics of the urban patterns and, therefore, each urban landscape will condition the organization of the energy system
Gli spazi aperti di prossimità. Un'opportunità di cambiamento verso la transizione ecologica.
No full textA seguito dell’inizio della crisi sanitaria globale, che ha evidenziato l’incapacità di
molte città nel rispondere alle molteplici e concomitanti emergenze, è maturata
la consapevolezza di quanto fosse necessario ragionare non solo su come fronteggiare
il virus, ma anche su come il sovra-utilizzo e il conseguente adattamento dell’ecosistema ai bisogni antropici stessero acuendo i rischi globali che riconoscono
nell’urbanizzazione dei territori una tra le principali cause di alterazione ambientale.
Al contempo, città ben pianificate spazialmente si sono dimostrate più resilienti
evidenziando quanto proprio le città possano rappresentare il principale campo
di applicazione di strategie per la transizione ambientale per attivare co-benefici
per salute e clima. Il contributo presenta gli esiti di una ricerca su alcune ipotesi
di riconfigurazione degli spazi urbani di prossimità, finalizzate alla mitigazione e
all’adattamento agli effetti dei cambiamenti climatici, considerando condizioni multiple
di sostenibilità individuate da tre ambiti di intervento e dalle loro interrelazioni
più efficaci per la decarbonizzazione: energie rinnovabili, accessibilità e mobilità sostenibile, servizi ecosistemici
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
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
EDUCACIÓN, CONSTRUCCIÓN Y TIERRA: EL CASO DE ZACATECOLUCA, EL SALVADOR
No full textLos asentamientos informales han asumido vastas proporciones en América Latina durante aproximadamente un siglo con fenómenos únicos que no se encuentran en ninguna otra área del mundo. Representan el mayor desafío para la arquitectura contemporánea porque conllevan problemas constructivos, antropológicos y ambientales. La experiencia realizada en Zacatecoluca, El Salvador, por la Università degli Studi Roma Tre, la Alcaldía Municipal de Zacatecoluca y la Fundación Salvadoreña de Desarrollo y Vivienda Mínima, enseña mucho sobre la relación entre ciudadanos, autoridades, diseñadores y técnicos, en el marco de la mejora de las condiciones habitacionales de la población del asentamiento informal Ramal a través de la construcción y remodelación de viviendas. El objetivo del artículo es mostrar el proceso de planificación y decisión, llevado a cabo por los diversos actores que operan para promover el mejoramiento del hábitat, a través de la realización del edificio público comunitario, la restauración de la ex-estación de ferrocarril para reconvertirla en escuela de formación, la renovación de las viviendas, utilizando técnicas vernáculas y procesos de capacitación para la autoconstrucción. La intervención se desarrolla en tres fases: la elaboración del Plan Maestro para el análisis de soluciones urbanísticas y sociales, la realización del edificio comunitario y la reconstrucción y remodelación de las viviendas. A raíz de la presentación del Plan Maestro, comenzó la preparación para la construcción del edificio público, completado por la Estación, transformada en Escuela Taller de Artes y Oficios Tradicionales y Artesanales de El Salvador con el fin de crear conciencia sobre temas de sostenibilidad y cultura constructiva. La población así formada deberá mejorar su hábitat a través de la autoconstrucción,
utilizando técnicas vernáculas en tierra y madera. El principal resultado obtenido es la elaboración de un manual popular de construcción de viviendas en adobe sismo resistente, guía útil para resolver dudas durante la construcción
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