1,720,999 research outputs found
Applicazione di modelli lineari generalizzati a problemi ambientali: le acque di balneazione come caso studio
No full textAbstract non disponibil
Stima delle perdite idriche proposta dal D.M. 99/97 e da IWA con monitoraggio in telelettura
No full textSpatio-temporal inhabitation of settlements by Hystrix cristata L., 1758
Full text linkSettlements are usually shared at different times by semi-fossorial mammals. Porcupine reproductive pair shows high den-site fidelity, but no data are available on the spatio-temporal inhabitation of settlements. In this investigation, the spatio-temporal inhabitation of settlements by crested porcupine families was investigated using camera-trapping as well as the ethological factors affecting the settlements selection. The crested porcupine resulted to be the main inhabitant of settlements surveyed in the present study. Each settlement was inhabited exclusively by one porcupine family. Five out of six porcupine families, each alternatively and complementarily inhabited the same two settlements. In all the five monitored families, settlements selection doesn’t follow a seasonal pattern. Settlement inhabitation of porcupines resulted positively affected by cohabitation with badger, while presence of porcupettes did not affect settlements selection. Long periods of settlement inhabitation were positively affected both by the presence of porcupettes and cohabitation with badger. The pattern of settlements inhabitation in relation to their availability and porcupine population density as well as factors promoting porcupine-badger cohabitation should be further investigated. New ethological knowledge obtained in this investigation could be involved in the evaluation of the ecological epidemiology of infectious diseases between porcupine and badger within a one health approach and may be a useful tool for a sustainable management of semi-fossorial mammals
Laboratorio di ricerca e sviluppo sulle energie rinnovabili
No full textE’ in fase di progettazione esecutiva un laboratorio di ricerca e sviluppo sulle energie rinnovabili, da realizzarsi presso il centro Ricerca e Sviluppo di HERA a Forlì. In tale laboratorio saranno impiegate, e integrate, le tecnologie più avanzate per la produzione di energia da fonte rinnovabile con l’obiettivo di massimizzarne l’efficienza e/o ridurne l’impatto ambientale e valutare le problematiche gestionali dei dispositivi, che ancora non hanno un’applicazione industriale. L’obiettivo di tale laboratorio è di portare all’interno dell’azienda il know-how necessario alla valutazione, progettazione e gestione di tali impianti, così da riversare sul territorio le migliori tecnologie disponibili.
In particolare il laboratorio è suddiviso in quattro aree: una dedicata a diverse tipologie fotovoltaiche, una seconda dedicata alla conversione energetica delle biomasse, una terza dedicata alla produzione e utilizzo dell’idrogeno e una quarta di carattere didattico e divulgativo.
Tale struttura è stata concepita come un centro di eccellenza per lo studio e la messa a punto delle migliori tecnologie in ambito di energie rinnovabili: infatti la strumentazione e le infrastrutture sono state progettate per poter ospitare anche nuovi e futuri impianti per ricerche avanzate su gestione e produzione di energie rinnovabili
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
Hivernage de l'œdicnème criard Burhinus oedicnemus sur le littoral atlantique de Souss-Massa (Maroc): effectifs et phénologie des rassemblements
No full textWintering of Eurasian Stone-curlew Burhinus oedicnemus (Charadriiformes,
Burhinidae)ontheAtlanticcoastofSouss-Massa(Morocco):numbersandphenologyofflocks.
We monitored autumn-winter roosts of Stone-Curlew on the Atlantic coast of the Souss-Massa region
(Morocco), from the end of July to the end of February during the period 2018-2022. Birds begin to gath-
er at post-breeding and autumn-winter roosts in mid-July to late August, typically reaching peak occu-
pancy in January and leaving around mid-March. A wintering population of around 1,254 birds (in 2022)
was found at 11 different roost sites, sometimes close together, in a relatively small geographical area
(38,221ha), but which seem to be connected according to the birds' movements. Most roosts are located
in a coastal steppe zone, with 64% shrub cover and lower vegetation (less than 22cm). The vegetation
structure, directly related to the proximity of the coast and the absence of grazing, largely determines
the roost sites selection. This paper highlights the importance of the Souss-Massa National Park as a
post-breeding and wintering ground for this species, which is still little studied in Morocco
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