1,720,996 research outputs found
Studio e messa a punto di una metodologia per l’impiego di oli esausti vegetali ed animali come fitofarmaci in sostituzione degli oli bianchi di idrocarburi
No full textCentro Interuniversitario di Ricerca per i Paesi in via di Sviluppo, Università degli Studi di Roma "La Sapienza
Determinazione delle vie di smaltimento dei rifiuti plastici da imballaggio e relative valutazioni energetico-ambientali
No full textRelazione finale relativa al contratto N. 80/97 tra l'ISPESL ed il Dipartimento di Meccanica e Aeronautica dell'Università degli Studi di Roma "La Sapienza
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
The Adoption of Chatbot for Customer Service
No full textModeling, profiling, analysing and understanding of users are becoming increasingly important in many industries also thanks to the support of artificial intelligence, representing a key to success in today’s data-driven world. The aim of the paper is to examine the interactions that occurred between ANAS users and the company’s’ chatbot, in order to highlight the requests, preferences and needs of users and the automated response and support capabilities that are provided to them. To meet the objectives of the research, a qualitative-quantitative study was carried out, including hermeneutic analysis and an automated analysis of the conversations were realized, using a natural language analysis (NLP) tool.
The results show that the conversational material is characterized by being a precious source of information to better understand the needs of the audience and, at the same time, to be able to improve the service offered to the customer. Understanding users, their profile, key issues and requests can help companies personalize their services and adapt strategies from the bottom up.
This knowledge of users’ needs can be used to increase their satisfaction and help them find the right answer more quickly and easily, as well as - as has been done - identify aspects to integrate and/or modify for a more effective and efficient communication channel responsive to user needs. Beyond the content, the form of the conversations can represent a further area for improvement.
In this sense, important practical implications emerged from the data for artificial intelligence designers and corporate communication professionals working in ANAS.  
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Implementation of the gut microbiota prevents anastomotic leaks in laparoscopic colorectal surgery for cancer: the results of the MIRACLe study
No full textThe aim of this pilot study was to evaluate the effects of a novel perioperative treatment for the implementation of the gut microbiota, to prevent anastomotic fistula and leakage (AL) in patients undergoing laparoscopic colorectal resections for cancer. A series of 60 patients who underwent elective colorectal surgery at S. Eugenio Hospital (Rome—Italy) between December 1, 2020 and November 30, 2021 and received a novel perioperative preparation following the MIRACLe (Micro- biota Implementation to Reduce Anastomotic Colorectal Leaks) protocol (oral antibiotics, mechanical bowel preparation and perioperative probiotics), was compared to a group of 500 patients (control group) operated on between March 2015 and November 30, 2020, who received a standard ERAS protocol. In the MIRACLe Group only 1 anastomotic leak was registered. In this group the incidence of AL was just 1.7% vs. 6.4% in the control group (p = 0.238) and the incidence of surgical site infections (1.7% vs. 3.6%; p = 0.686), reoperations (1.7% vs. 4.2%; p = 0.547) and postoperative mortality (0% vs. 2.2%; p = 0.504) were lower. The postoperative outcomes were also better: the times to first flatus, to first stool and to oral feeding were shorter (1 vs. 2, 2 vs. 3 and 2 vs. 3 days, respectively; p < 0.001). Additionally, the postoperative recovery was faster, with a shorter time to discharge (4 vs. 6 days; p < 0.001). In this pilot study, the MIRACLe protocol appeared to be safe and considerably reduced anastomotic leaks in elective laparoscopic colorectal surgery for cancer, even if not statisti- cally significant, due to the small number of cases
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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