1,720,986 research outputs found
APPROCCIO LYFE CYCLE ALLA PROGETTAZIONE DEGLI ASSETTI COSTRUITI. SISTEMI DI RATING ENERGETICO ED AMBIENTALI PER GLI INSEDIAMENTI RESIDENZIALI.
Full text linkLe città consumano circa il 75% dell’energia disponibile e producono circa l’80% delle emissioni climalteranti. A questo si aggiunge l’esponenziale aumento della popolazione e, in particolare della popolazione che vive in città, causa di una sovra-crescita incontrollata e senza regole delle aree urbane.
Indirizzare le nuove progettazioni verso obiettivi di compatibilità ecologica ed il recupero degli edifici e dei quartieri degradati - non solo dal punto di vista sociale, funzionale ed estetico, ma anche ambientale ed energetico - sono temi decisivi per affermare una nuova cultura del costruire e dell’abitare dei prossimi decenni.
Il concetto di sostenibilità viene delineato ed affrontato in modo differente a seconda della scala di intervento presa in considerazione. La scala urbana costituisce l’anello di connessione tra le decisioni prese sulla città e quelle per l’edificio, si lavora su fattori di tipo qualitativo e si compiono scelte che hanno ricadute sul contesto, con la possibilità di dare un contributo alla costruzione della qualità dello spazio urbano.
Ad oggi sono numerosi e diffusi, tanto a livello internazionale quanto a livello nazionale, i metodi di valutazione delle prestazioni energetico-ambientali relativi all’organismo edilizio. Questi sono declinati per diverse tipologie di edifici e destinazione d’uso e la loro applicazione può essere volontaria o cogente.
In questo contesto, mentre sono proliferati in maniera quasi esponenziale gli strumenti per la valutazione energetico ambientale degli edifici, la valutazione a scala urbana è ancora poco indagata, non solo in ambito nazionale, ma anche a livello internazionale, e pur offrendo molteplici spunti di riflessione, risulta un campo ancora da sviluppare e dalle grandi potenzialità applicative.
All’interno di questo panorama molto vasto ed eterogeneo delle certificazioni ambientali, il lavoro di ricerca ha fatto chiarezza ed ha individuato nella dimensione urbana e, precisamente nella dimensione del quartiere, il vero punto di forza su cui intervenire per realizzare città sostenibili. Il lavoro di ricerca approfondisce il tema della valutazione e della certificazione degli insediamenti e delle aree urbane e propone come risultato un protocollo per la certificazione ambientale ed energetica degli insediamenti che prende come struttura di riferimento il LEED for Neighborhood Development Rating System, sviluppato dall’U.S. Green Building Council, implementandolo con criteri derivati dall’analisi di altri protocolli e verificandone la trasferibilità in contesto italiano.
Il lavoro, prevalentemente nella fase finale, è stato verificato attraverso la partecipazione al Comitato Scientifico Standard per la realizzazione del protocollo degli “eco-quartieri” organizzato dal Green Building Council Italia. Questo ha consentito una valutazione positiva sugli esiti dell’elaborazione della tesi, definita attraverso un confronto serrato con tecnici, specialisti e professionisti che operano con costanza nell’ambito delle certificazioni ambientali applicate al settore dell’edilizia.
Tra i risultati raggiunti il più importante è l’implementazione del LEED for Neighborhood Development Rating System al contesto geografico, culturale, sociale, economico e normativo italiano. La trasferibilità dei crediti è stata possibile grazie ad un accurato lavoro di confronto e analisi del sistema di rating con altri protocolli per lo sviluppo delle aree urbane: BREEAM Communities e CASBEE for Urban Development; con il Protocollo ITACA e il LEED Ita NC 2009 per allineare gli standard di riferimento ed i parametri limite ed in ultimo con il protocollo sperimentale europeo Ecolabel per gli edifici
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
Nutraceutical Molecules Slow Down Retinal Degeneration, in Tvrm4 Mice a Model of Retinitis Pigmentosa, by Genetic Modulation of Anti-oxidant Pathway
No full textRhodopsin (RHO) mutations are responsible for 25–40% of the dominant cases of retinitis pigmentosa (RP) with different severity and progression rates. The Tvrm4 mice, heterozygous for an I307N dominant mutation of RHO, display a normal retinal phenotype when raised in ambient light conditions, but undergo photoreceptor degeneration when briefly exposed to strong white light. Here, The Tvrm4 mice is pre-treated with naringenin 100 mg/kg/die, quercetin 100 mg/kg/die, naringenin 50 + quercercetin 100 mg/kg/die or vehicle dimethyl sulfoxide (DMSO 0.025%) in the drinking water for 35 days. On the 30th day, retinal degeneration was induced by exposure for 1 min to the white light of 12,000 lux intensity, and the treatment was repeated for another 5 days. At the end of the protocol retinal functionality was tested by recording an electroretinogram (ERG). The retinal tissue was collected and was used for further analyses, including immunohistochemically, biochemical, and molecular biology assays. The data obtained show that treatment with nutraceutical molecules is effective in counteracting retinal degeneration by preserving the functionality of photoreceptors and increasing the antioxidant and anti-apoptotic pathways of retinal cells. The present data confirm that nutraceutical molecules are effective in slowing photoreceptor degeneration in a mutation-independent way by modulating the antioxidant response of the retina at the gene expression level
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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