1,720,955 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
Pulling of straight glass rods into focusing capillaries
No full textMålet med det här projektet är att ta fram en produkt för att kunna dra ut raka glasrör till fokuserande kapillärer. De fokuserande kapillärerna kommer sedan användas för att transportera och fokusera UV-ljus i vakuum. För att ta fram en produkt som klarar det behövdes först en litteraturstudie och intervju genomföras för att samla in kundbehov. Behoven kunde sedan bearbetas om till produktkrav. Utifrån produktkraven togs ett antal koncept fram. Ett av koncepten valdes ut för att vidareutvecklas till en färdig modell i CAD. Produkten består av undergrupperna ram, dragningsanordning, rotering av glasrör och brännare. Ramen är byggd likt en ställning och alla andra delar är fästa på den. Dragningen utförs av tre kulskruvar som drivs av en motor och är sammankopplade av en drivrem. I båda änderna av glasröret så roteras det med hjälp av varsin stegmotor som är direkt kopplad till chuckarna. Brännaren drivs på gasol och har en rund öppning som är riktad inåt direkt mot glasröret. Produkten togs fram praktiskt genom verkstadsarbete med svarv och fräs och genom inköp av standardkomponenter. En första prototyp av produkten kunde genomgå ett fåtal tester för att bekräfta den teoretiska modellen. Utifrån resultaten av testerna bör produkten klara av att möta alla produktkrav, men mer testning behövs. The goal of this project is to develop a product that can pull straight glass tubes into focusing capillaries. The focusing capillaries will be used to transport and focus UV-light in vacuum. To develop a product that meets the requirements a literature study and interview to gather customer needs was conducted. The data gathered from that then got processed and turned into a product specification. From the product specification multiple concepts were developed. One of the concepts got chosen and further developed into a model in CAD. The product consists of the subgroups frame, pulling mechanism, rotation of glass tubes and burner. The frame keeps all the other parts connected and secure. The pulling is performed by three ballscrews driven by a single motor and connected by a drive belt. At both ends of the glass tube it is rotation using a stepper motor directly connected to the chuck. The burner is powered by propane and has a round opening directly angled towards the glass tube. The product got developed practically through work in a workshop with a mill and lathe and through the purchase of standard components. A first prototype was made and then put through a few tests. Based on the result the product should be able to meet all product requirement, but mote testing is necessary.
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
A hot potato : A qualitative case study on the journalistic representation of the debate about Mr Cool
No full textThis paper aims to examine the different portrayals in Swedish journalism about a case with a controversial topic. The analyzed case in this study focuses on the provocative rapper Mr Cool and his song about sexual intercourse with a child and the following mediated debate about freedom of speech and morality. The research questions examined were: How does the media frame the meta-debate about Mr Cool? We picked 16 articles and analyzed them with a qualitative content analysis method using framing theory and argumentation techniques in order to be able to examine how the debate were portrayed by the media. We also used the moral panic concept to get a deeper understanding of the mechanics of topics the society is concerned with. We have found that the participants of the debate handled the subject differently and with different strategies, depending on which side they would support. The central discussion was about personal taste, boundary making and the consequences of silencing what is thought to be offensive. The results of the analysis agrees with previous studies and theories in the field when it comes to moral panics and fear as a natural part of our society. History is likely to repeat itself but with other motives and other fears
A hot potato : A qualitative case study on the journalistic representation of the debate about Mr Cool
No full textThis paper aims to examine the different portrayals in Swedish journalism about a case with a controversial topic. The analyzed case in this study focuses on the provocative rapper Mr Cool and his song about sexual intercourse with a child and the following mediated debate about freedom of speech and morality. The research questions examined were: How does the media frame the meta-debate about Mr Cool? We picked 16 articles and analyzed them with a qualitative content analysis method using framing theory and argumentation techniques in order to be able to examine how the debate were portrayed by the media. We also used the moral panic concept to get a deeper understanding of the mechanics of topics the society is concerned with. We have found that the participants of the debate handled the subject differently and with different strategies, depending on which side they would support. The central discussion was about personal taste, boundary making and the consequences of silencing what is thought to be offensive. The results of the analysis agrees with previous studies and theories in the field when it comes to moral panics and fear as a natural part of our society. History is likely to repeat itself but with other motives and other fears
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