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
OPTOEPIRET: Development of a exible epiretinal implant dummy with through-connections in the polyimide substrate
No full textMillions of people suffer from retinal diseases worldwide. Retinal diseases can either be cured or treated. Retinal implants try to do the latter and aim to restore, partially, the vision in visually impaired people. This research thesis introduces a flexible implant with through-connections and a corresponding thinned silicon dummy chip that, when bonded together, could function as a base for a retinal implant. The project, named OPTOEPIRET, manufactures such a two-part epiretinal implant, which will be completely implanted inside the human eye.The silicon chip has to be thinned in order to meet the flexibility properties needed due to the eye curvature. Different methods are discussed in this thesis. Thinning the complete wafer to 40 um and polishing the back surface before the chips are isolated yielded the best results. Eleven different versions of the polyimide substrate were fabricated. Ensuring the correct adhesion agentsare used for holding the gold pads into their corresponding polyimide holes was found to be critical. As well as ensuring a good connection between the gold pads and their corresponding paths.The two parts are flip-chip bonded together and stress tested after the space between the two parts is filled with an underfill to spread the possible stress. The DC resistance was measured during bending of the dummy implant. Results showed the through-connections are able to withstand the bending stresses and forces during implantation into the human eye.OPTOEPIRE
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
Instrumented Sled for Skeleton: Focusing on power management and the sensors for localisation, velocity and temperature
No full textThere is only a very limited number of moments a skeleton athlete can train at a skeleton track. Therefore, it is important to train as efficiently as possible. To do so, an instrumented skeleton sled is designed that provides useful feedback. This instrumented sled is able to monitor the force exerted on the sled by the athlete and link this to the position and speed. Also, the ice temperature of the track as well as the G-forces acting on the sled are measured. This report covers the design and implementation of the temperature sensor, the power system, the PCB and the system to determine the location and velocity of the athlete which is necessary for the instrumented sled.Electrical Engineerin
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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