1,721,002 research outputs found
Nesting association between the woodpigeon (Columba palumbus) and the hobby (Falco subbuteo)
No full textIn poplar plantations of Northern Italy, nests of the woodpigeon, Columba palumbus, are frequently associated with nests of the Hobby falcon, Falco subbuteo. Woodpigeon nests tended to be clumped around a Hobby nest, and in most cases were less than 40 m from the falcon nest
Nest-site selection by the hobby (Falco subbuteo) in poplar plantations in northern Italy
No full textThe hobby (Falco subbuteo) nests at a relatively high density (25.8-29 nests/100 km2 in poplar (Populus sp.) plantations bordering the Po River in northern Italy. These intensively managed crops have almost completely replaced the natural riverine forest, which was presumably the hobby's original nesting habitat. Only hooded crow (Corvus corone) nests were used by the hobby in poplar plantations. Hobbies selected plots with the largest trees and, when suitable habitat was evenly distributed, their nests were regularly spaced; tree felling did, however, cause local crowding of nests. There were no differences in nest and nest tree features between crow nests used and unused by hobbies within each occupied plot. Breeding success was the same as in other European populations, with 1.9 fledged young per observed pair and 2.2 fledged young per successful pair. Poplar plantations proved to be a suitable nesting habitat for the hobby in northern Italy
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
Música instrumental, tópicas e identidade cultural: um olhar sobre as produções de Milton Nascimento, Wagner Tiso e Nivaldo Ornelas no cenário da música mineira dos anos 70
Full text linkNos anos 70, Wagner Tiso e Nivaldo Ornelas começaram a se projetar na cena da música instrumental brasileira como compositores e instrumentistas. Neste artigo, analiso a primeira fase de suas carreiras procurando, inicialmente, relacionar seus trabalhos à trajetória de Milton Nascimento, cujos sucesso e prestígio alcançados na MPB se refletiram nas carreiras dos músicos citados. A partir do marco teórico das tópicas musicais – utilizado em estudos de música popular por autores como Acácio Piedade – procuramos demonstrar como algumas das produções desses artistas evocaram elementos formadores da identidade cultural mineira, contribuindo para forjar a imagem de músicos vinculados à Minas Gerais
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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