1,721,012 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
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
On the Role of Envisioned Futures in Sustainability Transitions
Full text linkDifferent kinds of representations of the future are often asked for in order to motivate and inspire societal change. These envisioned futures can be based on political or behavioural change, or may visualize technical developmentwhich could help us solve complex societal problems. The latter type of epresentation is especially important if we aim for sustainable development, and even more so if we aim to live up to the Paris agreement and mitigateclimate change. Such technical visions are the particular focus of this thesis.The importance of visions of and expectations on technology is also highlighted in the research field which focuses on socio-technical transitions towards sustainable production and consumption. Visions and positive expectations are claimed to have a coordinating effect, they attract resources and legitimise development of technologies which promise to enable the vision to be reached. Whether expectations and envisioned futures in general can really be claimed to have coordinating effects is however not generally agreed on. The aim with this thesis has been to develop analytical tools to help us explore the role of envisioned futures in sustainability transitions, so that we can acquire a better understanding of how they become efficacious.The thesis includes four research papers. Paper I and II focus on how a reconceptualisation of structure and agency is needed in sustainability transitions if explanatory theories are to be developed of what transitions areand how they come about. Based on critical realism, the groundwork for such theories is laid. Transitions are reconceptualised as transformations which result in systems with new emergent properties. This means that the study of transitions is really a study of how new structures that enable or constrain action come about. It is argued that to understand the importance of expectations we have to separate the act of expecting, which is part of humanreflexivity, and that which motivates us to act in the world, from expectation statements. The latter is a causal narrative linking propositional statements of how the world works which can be used in different ways: to preparefor anticipated outcomes, to evoke emotional engagement or to learn by seeing things in a new light. Margaret Archer’s work on morphogenesis of structure, human reflexivity, and our internal conversation has guided this work.Paper III and IV focus on different kinds of envisioned futures and the different ways in which they can create engagement in the recipient of these representations. The envisioned futures studied include literary fiction(climate fiction or ‘cli-fi’), scientific climate scenarios, and expectations on technology for carbon capture and utilisation. Our understanding of the world relies on story-telling to a large extent. We engage in the world throughpractice but we also fit these experiences into encompassing stories of how the world works and relate them to our personal concerns. Both concerns and rationales acquired through sense-making are important when actors reflex-ively deliberate on how to act. Explorative scenarios and predictive statements on future technology capabilities can give us a better understanding of different possible futures and what means we have to reach them, while fictive stories are better at providing affective engagement. Different kinds of envisioned futures are therefore important in a debate on where we want to go and how we should get there
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
Solenergi och vätgas (ett demonstrationsprojekt)
Full text linkVätgas antas ofta ingå i ett framtida fossilfritt energisystem och därmed vara en del av lösningen till hur vi ska förhindra klimatförändringarna. Var och hur vätgas är mest lämplig att använda i ett sådant system är dock ännu oklart. Mest lovande verkar vätgas vara som ersättning för bensin och diesel i persontransporter och som långtidslagring av energi från förnybara energikällor samt som komplement till batterier på platser där elnätet inte är utbyggt. Inom de flesta av vätgasens möjliga tillämpningsområden finns andra tekniker som har liknande eller andra fördelar. Vilken teknik som kommer att användas i framtiden är därför svårt att förutse och fler demonstrationsprojekt av olika skala och utvärderingar behövs för att kunna dra några slutsatser. Vätgas framförs ofta som en miljövänlig energibärare som inte bidrar till växthuseffekten och inte har några utsläpp vid användning. Det första påståendet är endast sant då produktion sker med förnybara energiresurser. För att skapa intresse och ökad kunskap om att vätgas kan användas som drivmedel har ett vätgascykelprojekt initierats av Vätgassamverkan Syd och Kristianstad kommun. En prototyp till en elcykel som drivs av bränsleceller och batterier kommer att byggas. Om projektet är lyckat kan denna prototyp komma att utvecklas till en färdig produkt.I ett första skede kommer vätgasen till bränslecellerna köpas in på tub för tankning av cykeln. På sikt är tanken att en produktionsanläggning för vätgas ska byggas i Kristianstad. I denna ska vätgas produceras genom elektrolys med el från solceller. Produktionsanläggningen ska användas i pedagogiskt syfte inom verksamheten på C4idéforum och visa på hur vätgas kan produceras både lokalt och från förnybara energikällor. Tillsammans med cykeln demonstreras hur vätgasen kan användas som ett bränsle utan utsläpp av växthusgaser. Olika alternativ till hur en sådan produktionsanläggning kan se ut har undersökts. En av utgångspunkterna var att produktionsanläggningen skulle vara fristående vilket visade sig kraftigt begränsa valmöjligheterna bland de elektrolysörer som finns på marknaden. Efter utvärdering av ett antal liknande projekt runt om i världen där elektrolysörer kopplats till solcellspaneler togs 3 alternativ fram för tankstationen. Simuleringar av de olikaalternativen visade att alla tre var mycket dyra lösningar och att förlusterna för ett säkert system med all kringutrustning för att vätgasen ska kunna användas i cykeln blev mycket stora. Två alternativ för ett större system simulerades också vilket visade att ett större system ger bättre verkningsgrad, lägre förluster samt lägre kostnad
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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