1,720,954 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
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
Patterns in the movement and distribution of Striped Bass (Morone saxatilis) in Minas Basin and Minas Passage
No full textMinas Passage (Bay of Fundy, NS) is a migratory pathway for many fish species and is also the site of tidal in-stream energy conversion (TISEC) device testing. The impact of this development on fish moving in the area is unknown. Striped Bass (Morone saxatilis), a recreationally fished, anadromous species, is of concern due to its migratory use of Minas Passage and designation as "endangered" by COSEWIC (2012). In this study, acoustic telemetry was used to identify spatial and temporal movement and distribution patterns of Striped Bass in near-shore waters of Minas Basin (summer and fall) and in Minas Passage (summer, fall and winter) during 2011-2013. Striped Bass (0.38 – 0.87 m fork length, FL) were tagged on the Stewiacke River spawning grounds (n=27), and in the Southern Bight of Minas Basin (n=58); 99% of tagged Striped Bass were detected by at least one acoustic receiver. Striped Bass tagged in the Southern Bight tended to remain in that area throughout the summer-fall foraging period, while Stewiacke-tagged Striped Bass showed no site preference in Minas Basin. Fifty-four percent of all tagged Striped Bass were detected in Minas Passage over a total of 250 days during the two-year study period. Ninety-nine of these detection days were during the cold winter months (<5°C water temperatures), when activity levels would have been reduced. Striped Bass were typically detected throughout the upper 50m of the water column in Minas Passage, with diel vertical migration more evident during the summer-fall foraging period than during winter. Travel rates of Striped Bass through Minas Passage exceeded known critical swimming speeds, indicating that travel was current-assisted. These findings inform risk assessment, FORCE's environmental effects monitoring program, and management of Striped Bass in the Bay of Fundy
Temporal and spatial movement patterns of striped bass in the Minas Passage, Bay of Fundy
No full textThe Bay of Fundy's Minas Passage (5-6 km wide) is currently the site for in-stream tidal energy turbine testing, but it is also a passageway for many commercially and recreationally important migratory fish species. Among these are striped bass (Morone saxatilis), a recently listed endangered species. The objectives of this project were to determine the movement patterns of sub-adult and adult striped bass within the passage, and to assess the potential risk of interaction with tidal turbines. A total of 40 transmitter-tagged striped bass (20 adults and 20 sub-adults) were tracked using 29 bottom-moored VEMCO acoustic receivers. Two lines of receivers spanned the width of the Minas Passage and a third line spanned the turbine test area. All recovered receivers (n=27) logged valid detections, with the highest number of detections occurring in July. Of the 40 striped bass tagged, 25 were detected, with more adults detected (75%) than sub-adults (50%). Adult fish were detected at depths throughout the water column, while sub-adults were detected only in the top 25 m (above turbine height). Fifteen striped bass (mostly adults) were shown to move back and forth through the passage at a mean swimming speed of 2.35 ± 0.71 m/s. Fish were detected more often at night than during the day. Detection frequency was higher during neap tidal cycles than during spring tidal cycles and was negatively correlated with current speed. Slightly more detections were during ebb tides than during flood tides. Unexpectedly, individual striped bass were shown to make multiple crossings of the Minas Passage during summer. In addition, many passed through the turbine test site at depths that include turbine hub height. The ability of striped bass to detect and avoid tidal turbines when travelling at high speed remains unknown
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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