1,720,954 research outputs found
Exploring factors associated with upper-limb prosthesis embodiment : a mixed-methods approach
Full text linkCurrent rejection rates among upper-limb prosthesis users are particularly high. A significant psychological factor associated with prosthesis use is the extent to which users feel their prosthesis is a natural part of them (termed Prosthesis Embodiment [PE]). Many researchers and clinicians suggest that encouraging PE should be an aim of rehabilitation. However, the factors influencing PE, how PE changes over the user’s lifetime, and the potential clinical consequences of PE, are currently unclear. In Study 1, in-depth qualitative email interviews were conducted with 10 upper-limb prosthesis users to explore both factors influencing and resulting from PE, via a qualitative Directed Content Analysis. Participants reported an unexpectedly wide range of both influences (e.g. type of prosthesis) and outcomes (e.g. better prosthesis proficiency). Temporary changes to PE were more noticeable to the user than a gradual change over time. These findings were then used to design a quantitative online questionnaire survey for upper-limb prosthesis users (Study 2) in order to follow-up findings in a larger sample (N = 34). In addition to statistically confirming most of the expected relationships, potential motivational and social aspects for PE emerged from the analysis. Further key findings are that PE is on a continuum rather than being dichotomous, and that satisfaction with aspects of the prosthesis (e.g., functionality) is also a major factor. An Immersive Virtual Reality (IVR) study was conducted with 31 anatomically-intact participants to explore experimentally how the prosthesis control method influences PE (Study 3). Body ownership techniques were utilised in a virtual-hand illusion paradigm, combined with motion tracking of a myoelectric prosthesis. This tested the relative impact of electromyographic (EMG) control (via muscle flexes) on virtual PE compared to anatomical-hand control. Results indicated the feeling of agency and skin conductance response to a virtual threat to the prosthesis were similar between the conditions. However, the feeling of ownership was significantly reduced with EMG control of the prosthesis, suggesting the influence of control method on PE, and may be a key factor for rejection. The results indicate there are a much greater range of influences and outcomes of PE than previously expected or explored, and that IVR prosthetic simulations may provide a method to test specific factors in a controlled setting. Understanding such factors could potentially inform prosthetic design, and ultimately aid in rehabilitation
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
Recommended from our members
Out-of-body experiences: an exploration of phenomenological features and development of an experience screening questionnaire: end of project report to the Bial Foundation. Department of Psychology, School of Social Sciences, Nottingham Trent University.
No full textDispelling 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
