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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
Influência de diferentes coberturas do solo na incidência de artrópodes e na produção da cultura do pimentão sob fertilização orgânica em cultivo protegido e campo aberto
Get PDFTrabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, 2017.Conduzido na Fazenda Água Limpa, área de campo experimental da Universidade de Brasília (UnB), este trabalho objetivou avaliar os parâmetros de produtividade e incidência de artrópodes no cultivo orgânico de pimentão (Capsicum annum L.) utilizando o híbrido Dahra RX do tipo lamuyo sobre influência de seis tratamentos: mulching de cor preta em estufa (T1), palha de arroz em estufa (T2), sem cobertura em estufa (T3), mulching de cor preta em campo (T4), palha de arroz em campo (T5) e sem cobertura em campo (T6). Os tratamentos foram inteiramente casualizados com quatro repetições. O tratamento com mulching preto em campo (T4) apresentou melhores índices agronômicos, seguido pelo tratamento palha de arroz em estufa (T2), e o ambiente em estufa mostrou-se melhor para o cultivo de pimentão orgânico, com uma baixa incidência de artrópodes-praga, comparado ao cultivo em campo.The objective of this study was to evaluate the parameters of fruits productivity and incidence of arthropods in organic bell pepper (Capsicum annum L.) cultivation. It was used the Dahra RX hybrid of the lamuyo type on six differents types of cover: black mulching in greenhouse (T1), rice straw in greenhouse (T2), without cover in greenhouse (T3), black mulching at the field (T4), rice straw at the field (T5), without cover at the field (T6). The treatments were completely randomized and with four replications each. Treatment with black mulching in the field (T4) presented better agronomic indexes, followed by treatment of rice straw in the greenhouse (T2), the greenhouse environment was better for the cultivation of organi
Influência de cultivares copas e porta-enxertos no cultivo de tangerineiras em Anápolis/GO
Get PDFDissertação (mestrado) — Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, Programa de Pós-Graduação em Agronomia, 2024.O Brasil desempenha um papel significativo na produção global de citros, com a laranja
ocupando a maior área de plantio, seguida pela tangerina. A tangerina é uma fruta muito
apreciada tanto para consumo in natura quanto na produção de sucos, devido ao seu sabor
intenso e aroma atraente. Notavelmente, a maior parte da produção de tangerina concentra-se
em duas variedades, 'Ponkan' e 'Murcott'. Além disso, é importante destacar que a maioria das
mudas é enxertada na cultivar de limão cravo (Citrus limonia (L.) Osb). Conscientes das
vulnerabilidades inerentes à cultura da tangerina, este estudo teve como objetivo identificar
combinações de alta compatibilidade entre diferentes variedades de copa (Dekopon, Imazu
Ponkan, Murcott, Ponkan) e porta-enxertos (Flying Dragon, Citrumelo Swingle, Cravo,
Cleópatra, Sunki e Gou Tou), visando uma produção mais sustentável. Para uma análise
abrangente da morfologia das plantas, procedemos com a medição do diâmetro da copa, altura
das plantas e produtividade. Além disso, para estimar o volume da copa, foi utilizado um
Veículo Aéreo Não Tripulado (VANT) e, empregado a técnica de fotogrametria, foi calculado
o volume aproximado das plantas. Esses resultados nos fornecem informações sobre o
comportamento do crescimento vegetativo de diferentes variedades de tangerina enxertadas
sobre diferentes porta-enxertos. Esta abordagem visa otimizar a seleção de combinações que
favoreçam um desenvolvimento saudável e produtivo das plantas, contribuindo assim para
uma produção sustentável e redução dos impactos econômicos e ambientais.Brazil plays a significant role in global citrus production, with orange cultivation covering the
largest area, followed by tangerines. Tangerines are highly prized for both fresh consumption
and juice production due to their intense flavor and appealing aroma. Notably, the majority of
tangerine production is concentrated in two varieties, 'Ponkan' and 'Murcott'. Additionally, it
is important to note that most seedlings are grafted onto the Citrus limonia (L.) Osb rootstock.
Recognizing the inherent vulnerabilities in tangerine cultivation, this study aimed to identify
highly compatible combinations between different scion varieties (Dekopon, Imazu Ponkan,
Murcott, Ponkan) and rootstocks (Flying Dragon, Citrumelo Swingle, Cravo, Cleopatra,
Sunki, and Gou Tou), with the goal of achieving a more sustainable and economically viable
production. For a comprehensive analysis of plant morphology, measurements of canopy
diameter, plant height, and productivity were conducted. Additionally, to estimate canopy
volume, an Unmanned Aerial Vehicle (UAV) was employed, and using photogrammetry
techniques, the approximate volume of the plants was calculated. These results provide
insights into the vegetative growth behavior of different tangerine varieties grafted onto
various rootstocks. This approach aims to optimize the selection of combinations that promote
healthy and productive plant development, thus contributing to sustainable production and the
reduction of economic and environmental impacts.Faculdade de Agronomia e Medicina Veterinária (FAV)Programa de Pós-Graduação em Agronomi
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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