1,721,024 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
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
An upgrade of existing practice-oriented FE design models for the seismic analysis of CLT buildings
No full textPractice-oriented finite element (FE) modelling strategies represent a fundamental tool for the seismic analysis
and design of Cross Laminated Timber (CLT) structures. Although substantial research has been undertaken
concerning the seismic behaviour of CLT buildings, practice-oriented FE modelling strategies are still at an early
stage. This paper presents an upgrade of an existing practice-oriented FE design model for the seismic design of
CLT structures. The upgrade is supported through the same modelling strategy presented by Christovasilis et al.
(2020) adding some features of analytical equations models presented by Casagrande et al. (2016).
2D elements are used both for the modelling of CLT panels and for mechanical connections, which are represented
by a horizontal strip with a height smaller than 7% of the height of the panel. Analytical equations for
determining the elastic modulus of elasticity and the shear modulus of the horizontal strip are reported accounting
for both rocking and sliding behaviour for single- and multi-panel CLT shearwalls, including the effect
of the vertical loads by using a secant stiffness. The validation of the proposal is carried out in terms of the
shearwall lateral stiffness through the results of experimental tests on full-scale shearwalls published by other
authors and through a validation/comparison between a detailed non-linear model and the Christovasilis et al.
(2020) strategy on two multi-storey seismic-resistant lateral systems configurations with different amount of
vertical loads. Finally, a proposal for the initial layout of connections to reduce the iterative seismic design and
analysis process for CLT buildings is presented through a case study
Yellow nail syndrome as a cause of unexplained edema
No full textYellow nail syndrome is a rare cause of edema due to a disordered lymphatic drainage. We recently observed two cases of long-standing, chronic edema, whose nature could not be understood despite innumerable diagnostic procedures. The diagnosis was suspected based on an attentive clinical exam and confirmed by radionuclide lymph scan. Yellow nail syndrome has to be considered in the differential diagnosis in cases of systemic edema, as well as long standing pleural effusions, particularly in patients with bronchiectasis or sinusitis. Clues to diagnosis are the presence of dystrophic, yellowish nails, peripheral lymphedema and relapsing pleural effusions and/or ascites. Long-term control of symptoms is difficult to achieve and may benefit from the judicious use of diuretics and intravenous albumin and by topical alpha-tocopherol. Pleurodesis may be needed. Other pathologic conditions are often associated to yellow nail syndrome and should be ruled out.Yellow nail syndrome is a rare cause of edema due to a disordered lymphatic drainage. We recently observed two cases of long-standing, chronic edema, whose nature could not be understood despite innumerable diagnostic procedures. The diagnosis was suspected based on an attentive clinical exam and confirmed by radionuclide lymph scan. Yellow nail syndrome has to be considered in the differential diagnosis in cases of systemic edema, as well as long standing pleural effusions, particularly in patients with bronchiectasis or sinusitis. Clues to diagnosis are the presence of dystrophic, yellowish nails, peripheral lymphedema and relapsing pleural effusions and/or ascites. Long-term control of symptoms is difficult to achieve and may benefit from the judicious use of diuretics and intravenous albumin and by topical alpha-tocopherol. Pleurodesis may be needed. Other pathologic conditions are often associated to yellow nail syndrome and should be ruled out
How do industry 4.0 technologies influence organisational change? An empirical analysis of Italian SMEs
No full textPurpose: This article aims to investigate the organisational implications of adopting Industry 4.0 (I4.0) technologies, giving specific attention to operations. The paper addresses these implications in two directions: organisational prerequisites for, and consequences of, I4.0 technologies. Design/methodology/approach: The research is based on a multiple case study of Italian small and medium enterprises (SMEs) in manufacturing. Ten case studies have been developed through interviews, company visits and secondary data collection. Findings: The multiple case study results show that: (1) a lean organisational structure supports effective adoption of I4.0 technologies; (2) introducing such technologies is linked to developing a new kind of job profile (i.e. the “Autonomous Operative Job Profile”); and (3) higher levels of technology adoption create a higher need for non-technical competences. Research limitations/implications: A limitation of this research relates to the highly heterogeneous maturity levels of the sampled companies, due to the relative newness of the I4.0 paradigm. Future research could, therefore, longitudinally analyse the technology integration process within organisations. Practical implications: This research provides preliminary evidence about how organisations and technologies co-evolve, thus suggesting that managers should co-design these areas. It also demonstrates the extreme importance of designing a structured process and a clear set of human resource management tools to favour SME organisational development. Originality/value: The study is built upon a conceptual framework derived from the sociotechnical perspective that analyses the interconnections between technology implementation and organisational change. From the results, three research propositions are derived to be tested on a larger scale
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
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