1,721,012 research outputs found
A Distribution Network during the 2020 COVID-19 Pandemic
No full textDuring an extraordinary event, like the COVID19 pandemic, very rapid changes in consumption profiles and customers behaviors were recorded. This paper investigates the impact of the lockdown on load and production in the distribution system of Terni. From a DSO point of view, no relevant issues were encountered to be faced. The distributed power generation from renewable resources did not affect relevant issues, maintaining the typical annual generation profiles. A domestic consumption increase was replaced by more relevant decrease of industrial processes and commercial activities absorptions. More than 25,000 domestic users increased their consumptions in April 2020 and the overall consumption of domestic customers in March was 1,05 times higher than the 2015 respectively consumption. The power flows at primary substations reveal a relevant electric demand reduction for each point of connection with the high voltage transmission system; especially bar 1 and 2 of the most relevant Terni primary substation, recorded a 15.3% decrease with respect to March 2019, and a 24.25% decrease with respect to April 2019
Impatto del COVID-19 sulla rete elettrica di distribuzione di Terni
No full textIn occasione di un evento straordinario, come quello della pandemia di COVID-19, sono state registrate variazioni molto rapide nei profili di assorbimento e nelle abitudini dei consumatori di energia elettrica. Questo articolo analizza l’impatto del lockdown sul carico e la produzione nel sistema di distribuzione di Terni. Dal punto di vista del gestore della rete di distribuzione, non sono state riscontrate rilevanti problematiche da affrontare. La generazione distribuita da fonte rinnovabile non ha rilevato particolari difficoltà, mantenendo sostanzialmente il tipico andamento annuale di generazione. L’aumento dei consumi domestici è stato compensato e superato dalla riduzione dei processi industriali e delle attività commerciali. Più di 25.000 utenti domestici hanno incrementato i loro consumi durante il mese di Aprile 2020 e il consumo globale degli utenti domestici a Marzo 2020 è risultato 1,05 volte superiore a quello registrato nello stesso mese nel 2015. I flussi di potenza alle cabine primarie evidenziano una importante riduzione della domanda elettrica in ogni punto di connessione alla rete di trasmissione ad alta tensione; in particolare le sbarre 1 e 2 della più importante cabina primaria di Terni hanno registrato una diminuzione del 15,3 % rispetto a Marzo 2019 e del 24,25 % rispetto ad Aprile 2019
Molecular analysis of UASE, a cis-element containing stress response elements responsible for ethanol induction of the KlADH4 gene of Kluyveromyces lactis.
No full textKlADH4 is a gene of Kluyveromyces lactis encoding a mitochondrial alcohol dehydrogenase activity, which is specifically induced by ethanol and insensitive to glucose repression. In this work, we report the molecular analysis of UAS(E), an element of the KlADH4 promoter which is essential for the induction of KlADH4 in the presence of ethanol. UAS(E) contains five stress response elements (STREs), which have been found in many genes of Saccharomyces cerevisiae involved in the response of cells to conditions of stress. Whereas KlADH4 is not responsive to stress conditions, the STREs present in UAS(E) seem to play a key role in the induction of the gene by ethanol, a situation that has not been observed in the related yeast S. cerevisiae. Gel retardation experiments showed that STREs in the KlADH4 promoter can bind factor(s) under non-inducing conditions. Moreover, we observed that the RAP1 binding site present in UAS(E) binds KlRap1p
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
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
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