1,720,997 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
Biomechanical comparisons between straight and bend sprinting in athletic sprint events
Full text linkDuring bend sprinting, the continuous need to change direction affects athletes' whole-body mechanics. Continuously changing direction results in athletes not being able to achieve the same velocities on the bend as seen during straight-line sprinting. The aim of this thesis was to identify technique and performance differences between bend and straight-line sprinting. Two studies were conducted, one empirical study with experienced bend sprinters and one scoping review synthesising the existing bend sprinting literature.
No differences were found in performance, push time, or most kinetic variables when analysing the effect of the bend during block starts compared with straight-line sprinting. However, there were reductions in vertical force on the bend compared with straight-line sprinting, which may negatively impact initial steps after block exit by reducing step length. Therefore, the bend reduces performance in subsequent race phases after block exit, potentially because athletes line their blocks up straight to increase anterior velocity.
The results from the scoping review found that the effectiveness of strength training, which targets the performance descriptors, lower body kinematics, and ground reaction forces, should be further explored. A focus should be how athletes can better maintain variables closer to those during straight-line sprinting. Determining which variables are closely related to performance in sprinters who have greater velocities on the bend, and sprinters who can better maintain their velocity on the bend compared with straight-line sprinting, would help improve all bend sprinters. Additionally, statistical analysis such as statistical parametric mapping would provide additional information on the characteristics of the waveform that differentiate performers that may be lost when analysing discrete variables. Finally, advancements in technology should be explored by biomechanists to capture data ecologically during training and competition.
Overall, changes in performance on the bend occur post block exit. However, a decrease in vertical force may impact the first few steps by reducing step length and, therefore, velocity. Variables related to better bend sprinters need to be identified using statistical analysis such as parametric mapping and advances in technology. An intervention study could then evaluate the effectiveness of strength training targeting the performance descriptors, lower body kinematics, and ground reaction forces, providing insights into improving bend sprinting performance
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
Community-based initiatives and mental wellbeing: a mixed methods study of parkrun
Full text linkCommunity-based initiatives, combining a purposeful activity with social connection, are a health promotion intervention for people at risk of poor mental wellbeing. Evidence from the weekly community initiative parkrun has indicated that participation may have mental wellbeing benefits but the factors influencing this effect are unknown. This programme of research aimed to explore these factors using a mixed-methods approach.
Study One was a secondary data analysis of a cross-sectional survey of 4,304 parkrun participants in Ireland. The findings revealed that participants aged over 45 years reported higher-than-expected mental wellbeing scores and were more sociable than younger parkrun participants. These results, along with extant literature, suggested that middle-aged men who participate in parkrun are a population which merited further investigation.
Study Two employed a qualitative approach to explore mental wellbeing and social experiences of middle-aged men who attend parkrun in Ireland. Online, semi-structured interviews were completed with 39 men aged 45-64 years. Reflexive thematic analysis resulted in themes describing parkrun events as a supportive environment for mental wellbeing, with a choice of social connection which developed over time.
Study Three used interview data from Study Two to develop personas representing the social goals of middle-aged men who attend parkrun in Ireland. The personas, along with consultation with key stakeholders, were used to develop policy and practice recommendations.
The significant original contribution to knowledge in this thesis is that participation in parkrun can support mental wellbeing, through social experiences, for middle-aged men in Ireland. The findings showed that parkrun is a place where members of the community can make social connections. For middle-aged men in Ireland these connections can support mental wellbeing. The research provides insights which can be used to inform health promotion policy and practice for parkrun and similar community initiatives
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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