1,720,987 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
Understanding Bumble Bee Community Changes And Floral Use In Southern Ontario.
No full textMultiple wild bee species, including bumble bees, are in global decline due to habitat loss, reduced floral resources, and competition with managed honey bees. Monitoring previously surveyed sites is essential to assess ongoing impacts on bumble bee populations and identify trends over time. This research revisited areas in southern Ontario to examine changes in bumble bee abundance, diversity, and floral use (Chapter 1) and explored potential competition for floral resources between bumble bees and honey bees (Chapter 2). Results indicate that while some bumble bee species have increased over the last 50 years, many have declined, leading to an overall loss of diversity. Findings also reveal significant niche overlap between bumble bees and honey bees, suggesting competition for floral resources. This work informs conservation strategies, identifies species requiring focused efforts, and emphasizes the importance of maintaining diverse floral resources to support bumble bee populations
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
Impacts of Direct Contact and Video Media on the Public Perception of the Endangered Massasauga Rattlesnake (Sistrurus catenatus)
Full text linkPollinators and the Global Crisis: Understanding the Importance, Impacts and Threats to Pollination Systems
Full text linkPollinators are essential to the global economy, the wellbeing of humans, and are indispensable when it comes to maintaining food security for all humans. The ongoing decline of pollinators has led to a crisis that is being driven by anthropogenic threats. This portfolio examines pollinators and threats to pollinating systems through two bodies of work; a literature review and a research study. The literature review of previously published pollinator decline research displays
a trend of study on agricultural systems and managed honey bees (Apis mellifera). Most research examining pollinator decline has focused on pesticides, agriculture and managed honey bees; in addition, most research was also focused in the global North. The research study portion of this portfolio examines the impacts of managed honey bees on wild bees in the city of Toronto. Honey bees were shown to impact the abundance of wild bees in urban landscapes. Increased abundance of honey bees in the city was also shown to impact the body size of certain groups of bees, Xylocopa, which proves that these managed bees compete over floral resources with native wild bees
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