1,721,018 research outputs found
Codes and data in Ranzietal@HP
No full textIn this folder are contained the MATLAB scripts and input files to obtain
-The MARTA Triangles
-The stepwise regression
-The wavelet spectra (with daily streamflow data)
-The trend analysis with the key annual data for the trend analyses presented in
A Multi‐century Meteo‐hydrological Analysis in the Italian Alps: Daily Streamflow (1862–2022) at Different Time Scales
Submitted to Hydrological Processes
Authors: Roberto Ranzi, Emanuele Eccel, Paolo Colosio, Eleni M. Michailidi
University of Brescia, Italy
Roberto Ranzi, University of Brescia, Italy
Brescia, 12 August 202
Alcune considerazioni della Società Idrologica Italiana sulla grave siccità dell’estate 2022
No full textLa siccità che ha colpito il nostro Paese fin dall’inizio del 2022, ha posto all’attenzione della popolazione, attraverso
i media, un tema che i gestori delle risorse idriche, i tecnici e i ricercatori hanno ben presente, ma che
non aveva ancora suscitato adeguato interesse nel dibattito politico. L’articolo del Ministro della Transizione
Ecologica, Roberto Cingolani, pubblicato sul Corriere della Sera lo scorso 11 luglio, è un utile stimolo, per
amministratori e politici, ad affrontare il tema della scarsità di risorse idriche e delle misure necessarie per mitigare
l’impatto dei fenomeni siccitosi. Questi potrebbero diventare, nei prossimi anni, sempre più frequenti,
intensi e severi per l’esacerbazione dovuta ai cambiamenti del clima.
Le cause principali della crisi idrica in corso possono essere sintetizzate in sei punti:
a) le precipitazioni sono diminuite, negli ultimi decenni, rispetto alle condizioni ordinarie (fonte ISPRA),
b) gran parte degli invasi artificiali presenta uno stato manutentivo scarso e limitazioni sulle capacità di accumulo,
c) le perdite delle reti di distribuzione idrica nel Paese, sono dell’ordine del 40% (fonte ISTAT),
d) le tecniche d’irrigazione utilizzate in agricoltura sono ancora poco efficienti nonostante la disponibilità di
strumenti e tecnologie innovative che consentirebbero un risparmio idrico,
e) esiste un elevato numero di Enti coinvolti in uno o più segmenti dell’approvvigionamento e della gestione
delle risorse idriche. Questo aggiunge un ulteriore livello di complessità nella gestione della risorsa idrica,
f) la mancanza di una strategia nazionale sulla tutela e uso delle risorse idriche, che fornisca gli indirizzi prioritari
a supporto della pianificazione e della gestione della risorsa idrica, soprattutto in periodi di siccità e
scarsità idrica.
Con questo sintetico documento la Società Idrologica Italiana intende fornire il proprio contributo alla discussione
in atto sulle crisi idriche, analizzando, in particolare, i processi naturali che ne sono all’origine ed
esaminando alcune delle possibili misure di mitigazione, strutturali e non strutturali, in grado di assicurare una
gestione più efficace e sostenibile della risorsa idrica e, quindi, di coniugare le esigenze del sistema antropico
e dei sistemi naturali
Sustainable management, control and consumption of water resources in a changing climate: a new science shop at UNIBS
No full textGestione, controllo e consumo sostenibile della risorsa idrica nel clima che cambia: un nuovo sportello della scienza
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
No full textWe 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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