1,720,959 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
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
Development of hydroxyapatite and wollastonite coatings for orthopaedic implant biomedical applications
Full text linkThe project aims to develop orthopaedic implants for biomedical applications. At present, millions of people suffer from hip issues; therefore, total hip replacement surgery has become more common; thus, finding a better hip implant is imperative. This study uses the titanium implant as a substrate due to its lightness, strength, durability, and biocompatibility despite its low bioactivity. Hydroxyapatite has a similar chemical composition to inorganic bone due to its bioactive nature. Biocoating fulfils both the function of bioactivity of Hydroxyapatite and the superior mechanical property of titanium. However, the major drawbacks of this Hydroxyapatite coated titanium implant are the poor mechanical properties of Hydroxyapatite and the bioinertness of the titanium. The present study intends to add Wollastonite as an additive to improve its mechanical and bioactive properties suitable for load-bearing applications.
Hydroxyapatite was initially spray-dried with the previous process parameters. Wollastonite was spray-dried with the same process parameters as Hydroxyapatite. As observed by scanning electron microscope, spray-dried Wollastonite showed acicular shape morphology, which affected its flowability. Therefore, Hydroxyapatite, Wollastonite, and Hydroxyapatite/Wollastonite composite powder were coated on the titanium substrate using a dip-immersion technique to address this issue. In the dip coating, the precursors of calcium, phosphate and silicate were used to dip coat Hydroxyapatite and Wollastonite on to a titanium substrate, respectively and Wollastonite powder in 10, 20 and 30 wt.%, respectively was added to Hydroxyapatite gel to form a Hydroxyapatite/Wollastonite composite coating. For spray coating, Hydroxyapatite, Wollastonite was spray coated onto a titanium substrate with parameters obtained from spray drying and Wollastonite was added in 20-50 wt.% to Hydroxyapatite slurry and spray coated onto a prepared titanium substrate. Overall, for dip-coated composite samples, the addition of 10 wt.% Wollastonite to composite coatings presented optimal results, whereas for spray-coated composite samples, 20 wt.% Wollastonite added to the composite coatings showed better coating cracks, porosity, microstructure results with better crystallinity. Therefore, new coating techniques requiring further research were produced as an outcome of the research
LAND VALUE CAPTURE FOR EQUITABLE URBAN DEVELOPMENT IN KENYA: A GAME THEORATIC MODEL FROM MATHARE 4B
No full textUrban development in Nairobi, Kenya, is characterized by spatial inequality and fiscal exclusion. Over half the city’s residents live in informal settlements such as Mathare, where state-led upgrading has repeatedly faltered due to affordability constraints and governance failures. This paper explores how land value capture (LVC) can support equitable upgrading by channeling the increments of land appreciation into subsidies for low-income residents. Drawing from my field engagement in Mathare 4B, this paper proposes a redistributive LVC model that taxes the land value uplift associated with formal development and redirects revenue to shared infrastructure, future slum upgradations and rent relief. However, this approach requires participatory planning, tenured land, and housing design. Stakeholder behavior in Nairobi’s informal settlements is shaped by uncertainty, mistrust, and the collective memory of exclusion. This paper applies game theory to model stakeholder behavior dynamics, identifying how credible commitment, participatory signaling, and iterative negotiation can shift outcomes from conflict to cooperation
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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