1,720,968 research outputs found
Performance Evaluation of the MESH-DQDC Protocol
No full textIn this work, we focus on a WLANs mesh, i.e., an ad hoc, IEEE 802.11-based network whose nodes are either user devices or access points providing access to the mesh network or to the Internet. By relying on some work about IEEE 802.11 MAC analysis, we consider mesh-DQDC protocol and present an analytical model of the MAC scheme, through which we show that the protocol achieves high throughput both in regular and in very fragmented mesh topologies when compared to the standard 802.11 solution. Also the proposed analytical model is validated through OMNet ++ simulator
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
What is �care quality� and can it be improved by information and communication technology? A typology of family caregivers' perspectives
No full textIntroduction: With governments worldwide reducing their involvement in the provision of institutional long-term elder care, community-based family caregivers (FCs) have become a key element in policies aimed at improving the quality of healthcare systems and maintaining their financial sustainability. This paper uses data from focus groups with FCs providing care to older adults to describe their approaches to and priorities for achieving care quality and sustainability as they work with formal health and social care systems. It describes FCs' views on information and communications technology (ICT) as potential supports for achieving these care quality and sustainability goals. Methods: We held 10 focus groups from May 2017 to August 2018 and recruited 25 FCs through a mix of convenience and snowball sampling strategies. We employed an inductive approach and used qualitative thematic content analysis methods to examine and interpret the resulting data. We used NVIVO 12 software for data analysis. Results: Quality of care � as delivered by both FCs themselves, and formal health and social care systems � was a major preoccupation for our participants. They saw communications quality as a key aspect of the broader concept of care quality. Our data analysis produced a typology of communications quality from the FC perspective. Analysis of our data also revealed ICT development opportunities and available products in key areas. Conclusions: Our findings suggest that the formal care system providers could be more caregiver-oriented in their communications by engaging FCs in the decision-making process and allowing them to express their own concerns and goals. The implication of our findings for those seeking to develop policies and ICT products in support of FCs is that these should focus on human relationships and seek to expand facilitative communications. © 2020 Nordic College of Caring Scienc
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
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