1,721,015 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
Contrôle multifactoriel des populations de campagnols dans un socio-écosystème : une application pratique au massif du Jura, France
No full textInternational audienceVole outbreaks can have a significant impact on public health and farming systems. This is particularly the case in the Jura mountains where, since the 1970s, ‘travelling waves’ of montane water vole (Arvicola amphibius) outbreaks have been observed in medium-altitude grassland, with 5–9-year cycles (6 years in average). These population peaks cause significant losses of forage, and therefore economic losses. The common vole (Microtus arvalis), in the same habitats, undergoes non-cyclic multi-annual fluctuations of large amplitude. Faced with the limitations of controlling vole outbreaks by applying rodenticides alone and their undesirable effects, a collective of farmers and researchers, in collaboration with other socio-ecosystem stakeholders, has developed a toolbox based on early control and a multifactorial approach that can be adapted by each farmer. This article describes this approach and the process that led to the establishment of such a stakeholder collective.Les pullulations de campagnols peuvent avoir un impact significatif sur la santé publique et les systèmes agricoles. C’est le cas notamment dans le massif du Jura où, depuis les années 1970, des « vagues voyageuses » de pics de pullulation de campagnol terrestre (Arvicola amphibius) sont observées dans les prairies d’altitude, en cycle de 5-9 ans (6 ans en moyenne). Ces pics de densité causent des pertes en fourrage, et donc économiques, importantes. Le campagnol des champs (Microtus arvalis), dans les mêmes habitats, subit des fluctuations pluriannuelles non-cycliques de forte amplitude. Confronté aux limites du contrôle des pullulations de campagnols par la seule application de produits rodenticides et à leurs effets indésirables, un collectif d’éleveurs et de chercheurs, en collaboration avec les autres parties prenantes du socio-écosystème, a mis au point une boîte à outil basée sur la lutte précoce et une approche multifactorielle adaptable par chaque exploitant. Le présent article décrit cette approche et le processus qui a conduit à la mise en place d’un tel collectif d’acteurs
Le concept de lutte raisonnée : combiner des méthodes collectives contre le campagnol terrestre afin de conserver une autonomie fourragère
No full textTimes Cited: 0National audienceResearch aimed at controlling vole outbreaks has led to the development of different integrated control measures. The goal is to act as early as possible to limit the growth of water vole populations using a holistic approach that involves managing both farmlands and ecosystems with the intention of preserving the self-sufficiency of foraging systems while simultaneously minimising undesirable environmental impacts (such as may occur when pesticides are used). Several complementary control measures can be employed in tandem (such as modifying the crop management sequence) to decrease habitat favorability for the vole (or the mole, a species that makes it easier for voles to colonise fields) and to increase the presence of predators. To this end, farmers have been offered the chance to establish formal partnerships with government-recognised health-focused organisations in the region
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
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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