1,721,444 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
Maio de 2022 teve temperaturas baixas na Região da Grande Dourados.
No full textA temperatura média no mês de maio, em Dourados, foi de 18,2 °C (Tabela 1), a mais baixa registrada em maio nos últimos seis anos e um grau e meio inferior à média histórica do mês, que é de 19,7 °C. Em sete dias do mês as temperaturas foram inferiores a 10 °C, com mínima de 4,8 °C, em 17 de maio, a mais baixa registrada nos cinco primeiros meses deste ano. Em apenas dois dias do mês as temperaturas superaram os 30 °C, com máxima de 31,7 °C, em 1º de maio
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Abril de 2022 teve chuvas expressivas e frequentes na Região da Grande Dourados e em Ivinhema.
No full textFevereiro teve temperaturas recordes. Em 2022, foi registrado o mês de fevereiro mais quente dos últimos 22 anos. A temperatura média em Dourados foi de 27,5 °C (Tabela 1), mais de 2 graus Celsius acima da média histórica desse mês, que é de 25,2 °C. Em 26 dias do mês as temperaturas superaram os 30 °C. No dia 15, a máxima atingiu 38,1 °C, a temperatura mais alta registrada em fevereiro nos últimos 18 anos. Atemperatura mínima foi de 13,9 °C, no dia 8. Em Rio Brilhante, as temperaturas também foram elevadas. A temperatura média foi de 27,3 °C, 1 grau Celsius superior à média de 9 anos da estação meteorológica da Embrapa Agropecuária Oeste, que é de 26,3 °C. Fevereiro de 2022 foi o mais quente em Rio Brilhante desde 2014. Em 26 dias do mês a temperatura superou os 30 °C, com máxima de 39,1 °C, no dia 16. A temperatura mínima foi de 13,1 °C, no dia 8. Ivinhema também teve temperaturas elevadas em fevereiro, com média de 27,1 °C. Em 26 dias a temperatura superou os 30 °C, com máxima de 38 °C, no dia 15. A temperatura mínima foi de 16,8 °C, também no dia 8
Provisional climatic norms of the region where the experiment was realized, in Mato Grosso do Sul State, Brazil, between 1992 and 2013 (adapted from Flumignan et al. [8]).
No full textProvisional climatic norms of the region where the experiment was realized, in Mato Grosso do Sul State, Brazil, between 1992 and 2013 (adapted from Flumignan et al. [8]).</p
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
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