1,721,148 research outputs found
Militari e civili a Pavia durante la Grande guerra. Appunti per una storia demografica, economica e sociale
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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
Rapidly fatal outcome of Covid-19 after successful emergency surgery during pandemic outbreak in Northern Italy
No full textIntroduction: A pandemic outbreak of novel coronavirus, named SARS-CoV-2 and responsible of Coronavirus Disease 2019 (COVID-19), has rapidly spread from China to Europe, being Northern Italy the first focus outside Asia. Little is known about the evolution of SARS-CoV-2 infection in patients undergoing surgery. Presentation of case: Here we report the first confirmed case of early postoperative SARS-CoV-2 infection in a patient recovering after Hartmann's procedure for acute diverticulitis. After an otherwise unevenful postoperative course, on post-operative day 8, the patient suddenly presented hyperpyrexia and cough, rapidly evolving to respiratory failure and death 36 h after symptoms onset. CT-scan identified bilateral, diffuse, interstitial pneumonitis and oropharyngeal swab test confirmed the presence of SARS-CoV-2. A previous contact with the partner, developing the same symptoms, remained unrecognized until ICU admission. Discussion: During a pandemic outbreak, the early identification of SARS-CoV-2 infection of an inside patient initially considered to be infection-free has a pivotal importance not only for the prompt patient's management, but also to avoid infection spreading to other patients and hospital personnel.In the reported case, a more precise information to the patient regarding the imperative necessity to inform the medical personnel of any person of his entourage presenting, at any time, any tell-tale sign, symptom or examination which may be attributed to COVID-19, may have had allowed to anticipate patient's isolation and examinations and procedures aimed at identifying such an infection. Conclusion: Persistent hyperleucocytosis and increased CRP serum level in spite of uneventful postoperative course were the only, aspecific markers of an ongoing SARS-CoV-2 infection before symptoms’ onset, and should be considered in future clinical practice in order to adopt the prompt and appropriate patient management and limit COVID-19 contagion in surgical units
Agglomeration dynamics of innovative start-ups in Italy beyond the industrial district era
No full textPrincipal Topic
Under the “Knowledge Spillover Theory of Entrepreneurship”, urbanization economies rather than
localization economies are considered the driving force for new venture creation (Jacobs, 1969;
Audretsch & Feldman, 1996). Furthermore, diversified urban areas results suitable location for new
ventures compared with industry-specialized and less urbanized areas (Handerson, 1995; Porter,
1999).
Localization of new ventures may also show some form of “path dependency” (Fotopoulos, 2014).
Thus, geographical areas with relatively high rates of new venture creation in the past – such as
Italian industrial district area (IDs) - are likely to show high rates of startups in the future (Fritsch
& Mueller, 2006; Hathaway, 2013). In addition, business support and incubating initiatives i.e.
incubators and science parks may foster entrepreneurship (Ratinho & Henriques, 2010).
Method
The analysis is based on 6018 innovative startups registered in the Italian Chamber of Commerce
Firms Register, classified according to two-digit NACE codes 2007. Other data were collected from
the Italian Institute of Statistics, including the geographical distribution of 141 industrial districts,
as well as from an empirical research meant to locate and classify incubating initiatives. All data
were analyzed considering 104 Italian NUTS 3 regions - aka “provinces” - using a multiple linear
regression model.
Results and Implication
The study presents four main findings. First, diversified and urban area seem not to play a
significant role in new venture creation and agglomeration. Second, the presence of industrial
districts exhibit a positive influence on innovative new venture birth rate. Third, incubating
initiatives reveal a strong and positive impact on innovative new venture birth rate. Fourth, the
authors add empirical confirmation on entrepreneurship as tool that fosters existing regional
disparities rather than regional development.
This study highlight the centrality of incubating initiatives on the extant debate on new venture
creation. Since, incubating initiatives are only a small part of the wider supportive startup system,
there is space here for future research. Moreover, path dependency theories over the traditional
agglomeration theories find support in this research. Thus, suggesting important insights for policy
makers. For instance, policy-makers should design specific measure to facilitate a collaborative
model between SME, typically populating a IDs, and innovative startups. This, it may represent a
key driver for the future economic growth
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