1,720,968 research outputs found
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
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
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
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
Evaluation of tularemia-specific diagnostics
Get PDFBackground. Tularemia is a zoonotic infection caused by the bacterium Francisella
tularensis. Laboratory diagnosis consists primarily of serological methods. Enzyme-
linked immunosorbent assay (ELISA) is performed at the Laboratory Medicine,
Norrland’s University Hospital in Umeå. A rapid serological test, Virapid tularemia,
is also used there and at the Laboratory Medicine, Östersund ́s Hospital. It is
considered important to compare Virapid with ELISA as this has not been done
previously on this material.
Research question. How well does Virapid agree with ELISA? To what extent are
there clinical indications for current tularemia when the result of Virapid and/or
ELISA is positive? Is the result for either test (Virapid and ELISA) better than the
other in detecting a current infection with tularemia?
Materials and methods. In total, 2443 serum samples analyzed between 2011 and
2025 at Norrland’s University Hospital and 304 serum samples analyzed at
Östersund ́s hospital between 2022 and 2025 were included. For all samples,
simultaneous analysis had been performed with Virapid and ELISA. Sixty-two
patient records were reviewed to determine correlation to current tularemia.
Results. In the Umeå material, the sensitivity for Virapid in comparison with ELISA
was 55.8% and the specificity was 93.9%. The corresponding values in the
Östersund material were 67.9% and 92.8%. A comparison was made between
ELISA and Virapid in relation to current tularemia with similar outcomes; the
former assay showed a sensitivity of 88.9% and a specificity of 87.1% and the latter
83,3% and 86,4%, respectively.
Conclusion. A relatively large discrepancy was seen between Virapid and ELISA.
For both ELISA and Virapid, there were positive samples that did not correlate to a
current infection. The result indicates that borderline responses for ELISA have low
predictive value. Larger studies are required to further investigate how Virapid and
ELISA relate to each other and to current tularemia
Teachers’ perceptions of barriers and facilitators in implementing innovations for inclusive education
No full textImplementation of evidence-based innovations in school bridges the gap between research and practice. During implementation, barriers and facilitators for progression and sustainability may arise. When teachers are consulted about their perceptions during the process, various factors can be identified that influence the initiation, execution, and sustainability of innovation implementation. This thesis investigated teachers’ perceptions of the barriers and facilitators in implementing innovations for inclusive education in Swedish schools. Using implementation frameworks and questionnaires, teachers’ perceptions of implementation factors were captured at different stages of implementation in three distinct projects. Study I used group interviews at three time points over a six month period to investigate six preschool class teachers’ perceptions of the implementation of cooperative learning. The Theoretical Domains Framework was used for deductive thematic analysis. Both barriers and facilitators were identified at each time point. However, an overall positive progression was observed, with initial barriers being overcome as the implementation progressed. Study II investigated the perceptions of 127 teachers and school staff after the implementation of the Inclusive Behavioural Support in Schools programme. The Determinants of Implementation Behaviour Questionnaire for School settings was used to assess teachers’ perceived barriers and facilitators regarding this innovation and its implementation. The questionnaire was also tested for theoretical and internal fit. Facilitators included the absence of negative emotions, intentions to continue using the innovation, and the fit between the innovation and the teacher’s professional identity. Barriers included using the innovation under sub-optimal conditions, a lack of positive reinforcement, and an unsupportive socio-political context. Additionally, the study found significant differences in perceptions between teachers in earlier and later school years, as well as between implementation group members and non-members. Study III surveyed 930 teachers at the start of the implementation of the programme Inclusive Behavioural Support in Schools, concerning two constructs: collective teacher efficacy and teacher attitudes toward the inclusion of students with special educational needs. These constructs were measured using the Collective Teacher Efficacy Scale and the Teacher Attitudes to Inclusion Scale. The scales were evaluated for sample fit and a small but significant positive relationship between the constructs was found. The thesis demonstrated how the Theoretical Domains Framework and the Capability, Opportunity, Motivation – Behaviour (COM-B) system could be used to identify important factors affecting implementation, both as an analytical framework and as framework for a questionnaire for the school setting. Overall, the thesis identified perceptions and attitudes related to the importance of providing structural and social implementation support, ensuring a practical and philosophical fit between innovation and teacher perceptions, and providing opportunities for teachers to build individual and collegial confidence and efficacy in using innovations for inclusive education. Taking teachers’ perceptions into account during preparation and progression can promote an implementation that is perceived as relevant, effective, enjoyable, and useful for all teachers
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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