1,720,969 research outputs found
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
Digital museum from integrated 3D aerial photogrammetry, laser scanner and geophysics data
No full textThe hypogeum of San Salvatore di Sinis (Sardinia, Italy) is one of the oldest signs of the presence of the first Christians in Sardinia (IV century a.C.). Its walls are finely decorated with drawings from different periods, today strongly degraded. The present knowledge of the monument and of the site is not complete therefore, to check the presence of buried remains that could be related to the hypogeum, an extensive geophysical survey using ground penetrating radar (GPR), 3D ERT, seismic survey was carried out in the area around the church and inside it. The walls and floor of the hypogeum were also investigated. The results of the survey shown numerous buried structures in the surround of the hypogeum, furthermore some other voids are probably present near the hypogeum. The data collected were used to implement a tool that can be utilized both to explore the subsoil and to see the lost drawings on walls as a virtual archaeology. The system also allows the musealization and the use by disabled people
Who are entrepreneurs? Mapping Students' and Entrepreneurs' Conceptual Frameworks of Entrepreneurship
No full textBetween Innovation and Risk: Mapping the entrepreneurs and students' knowledge structures
No full textThis research, based on the Entrepreneurial Cognition perspective (Mitchell, Busenitz et al., 2002), investigates the
entrepreneurs' and students' knowledge structures connected to the concept Entrepreneur. The exploratory purpose is to elucidate
which motivational factors and decision making processes are connected the most with the Entrepreneur concept; to investigate
whether and which differences emerge between students' and entrepreneurs' knowledge structures.
A three-stage procedure was brought. (1 ): 30 concepts were extrapolated from the literature on entrepreneurial motivation (Shane,
Locke and Collins, 2003) and decision-making processes (Mitchell et al., 2007); (2) two focus-group of 12 entrepreneurs and 12
students, respectively, were conducted to prune the list of 30 to 19 ones: Experience, Intuition, Planning, Change events, Selfefficacy,
Risk, Earn, Personal success, Passion, Autonomy, Power, Market, Innovation, Funds, Failure, Friends entrepreneurs,
Entrepreneurs, Sardinia*; (3): 26 entrepreneurs (age 33, SD 5.84, 8% women) and 111 students (age 25, SD 3.62, 42% women )
reported the correlation between each pair of concepts with a 5 point-scale where 1 is not at all connected and 5 is strongly connected.
The technique used to analyze the correlation matrices are based on the Pathfinder algorithm (Schvaneveldt Dearholt and Durso,
1988), by which non-informative edges are pruned in order to simplify the structure of individuals' representations. An ad-hoc Python
software was developed with NetworkX. It allows (1) to visualize individual representations; (2) to calculate two measures of
centrality relying on graph theory (Steyvers and Tenenbaum, 2005): Degree (number of links associated to each concept);and
Betweenness (number of times a concept should be traversed when connecting every couple of concepts in the network).
The results show that for entrepreneurs the concept Entrepreneur is more central than for students and for students one of the central
concept is Self-efficacy. In addition, among the entrepreneurs the concept Risk is related to the context in which the company was
created, failure, innovation and intuition, while in students' representation it is is related only to the concept Entrepreneur.
This type of analysis can be useful in the context of entrepreneurial training to check the effects of experience and new acquisitions.
*Italian Regio
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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