1,721,031 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
Taxonomic Revision of Six Blenny Genera from Taiwan
No full textThe Blenniidae, containing more than 50 genera and 300 species, is the most diverse family of the Blenniiformes. They have elongated, scale less and eel like appearance. Blennies are widely distributed from temperate to tropical regions and can be found in various habitats, including coral reef, sea grass bad, and intertidal zone. The Blenniidae can be divided into four subfamilies, including Nemophinae, Omobranchinae, Parableniinae and Salariinae. The Salariinae is a diverse fish group distributed in Indo Pacific Ocean, including Taiwan. Six genera, Alticus, Andamia, Blenniella, Entomacrodus, Istiblennius and Praealticus of the Salariinae share similar morphological characters and the monophyletic clade comprising them is herein named Amphibious group. They are also the most dominant and highly adapted to intertidal zone in Taiwan. In the present study, we attempt to review taxonomy of the Amphibious Group with morphological and molecular evidences. Two hundred and fifty seven specimens of 21 species of six genera from Taiwan were examined. Entomacrodus thalassinus thalassinus is the only sub species of Entomacrodus thalassinus recognized in the present study, and another subspecies E. t. longicirrus is not examined in the present study. Entomacrodus epalzeocheilos and E. niuafoouensis are treated as two valid species. We concluded I. enosimae is misidentification of I. edentulous. Praealticus tanegasimae is misidentification of P. striatus and is not distributed in Taiwan. We also concluded P. margaritarius as a junior synonym of P. bilineatus. DNA barcoding of these species are also provided for molecular evidence. Long genetic distance of COI gene is found between India and Pacific populations among several species, including E. thalassinus, I. dussumieri and I. edentulus. Long genetic distances also existed between East and West Pacific populations, including Blenniella caudolineata, Entomacrodus striatus, E. thalassinus. In some cases, genetic distance is also distant between Japan and Taiwan, including P. bilineatus. Further studies are needed to better understand their taxonomy
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
Osteology of the Family Pempheridae (Perciformes)
No full textThis study describes not only the osteology of Pempheris schwenkii but also diagnostic characteristics of selected taxa. P. schwenkii can be distinguished from P. adusta by the numbers of anal fin rays (IV-41 vs. III-43) and the position of first rib (3rd vs. 4th vertebra). The genus Parapriacanthus is distinguished from Pempheris by four characteristics, including absence of the metapterygoid with a circular protrusion (vs. presence in Parapriacanthus), the mandible retroarticular semicircular (vs. hourglass-like in Parapriacanthus), presence of foramen of hyoid arch (vs. absence in Parapriacanthus), and the dorsal fin first pterygiophore not thin and rod-like (vs. thin and rod-like in Parapriacanthus). The study compared with the Apogonidae, Acropomatidae, Glaucosomatidae and Pempheridae families. The first of different characteristic is the third infraorbital has subocular shelf, second of different characteristic is in pectoral fin has smooth and strong coracoid, third of different characteristic the skeleton of pterotic is branch-shaped, fourth of different characteristic the small angle of actinosts and body axis. And found that has four different characteristics unlike with the Pempheridae and other families
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
Records of deep-sea anglerfishes (Lophiiformes: Ceratioidei) from Indonesia, with descriptions of three new species
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