1,721,080 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
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
Incidence of ascites on broilers fed with high energy level commercial rations
Get PDFO trabalho objetivou avaliar os efeitos de diferentes rações comerciais com alto nível energético na incidência de ascite em frangos de corte. Foram utilizadas 1.200 aves de uma mesma linhagem comercial (Hubbard), distribuídas em 12 boxes, segundo um delineamento inteiramente ao acaso, com quatro tratamentos e três repetições de 100 aves cada. Os tratamentos foram constituídos por três diferentes rações comerciais trituradas (B, C e D) comparadas com o controle, uma ração farelada inicial (A), do primeiro ao 39º dia de idade. Não houve diferenças entre os tratamentos quanto ao consumo, peso e ganho de peso das aves. em relação à conversão alimentar, o tratamento C apresentou resultado significativamente melhor; entretanto, foi observada neste mesmo tratamento, a maior taxa de mortalidade. O maior motivo dos óbitos registrados foi a síndrome ascítica. Conclui-se que existe um favorecimento de surto de ascite pelas rações com melhor conversão alimentar nas aves.An experiment was carried out to verify the effects of different commercial rations with high energy level on the incidence of ascites on broilers. A total of 1,200 Hubbard birds were housed in 12 boxes, in a complete random design with four treatments and three replications of 100 birds in each replication. Treatments consisted of three commercial crumbled pellets diets (B, C and D), which were compared to the control (A), an initial mash diet, from up one to 39 days of broilers age. There was no significant difference between the treatments for feed consumed, body weight, and body gain of the birds. But, the feed conversion of the treatment C showed significantly better results. However, it was observed that this same treatment had the highest value of mortality and such high mortality percentage was caused by ascites. The results showed that the conversion feed was a very important factor on the incidence of ascites.Universidade Estadual Paulista Dep. de Apoio, Produção e Saúde AnimalUniversidade Federal de Minas Gerais Escola de VeterináriaUniversidade Estadual Paulista Dep. de Apoio, Produção e Saúde Anima
Incidence of ascites on different genetic categories of broilers fed with high-energy diet
Get PDFO objetivo deste trabalho foi verificar a incidência de ascite em avós, matrizes e frangos de corte, de uma mesma linhagem comercial, alimentados com ração de alto nível energético, de um dia a 39 dias de idade. Todas as aves foram criadas como frangos de corte, recebendo ração ad libitum com 3.050 kcal/EM; foram utilizadas aves da linha fêmea e linha macho e frangos de corte. Um total de 2.700 aves foram usadas, alojadas ao acaso em um galpão experimental de 8x76 m, utilizando-se 27 boxes de 3x3,5 m, com 100 aves por divisão, sendo três repetições por tratamento, em esquema fatorial. A incidência de ascite não dependeu da categoria genética das aves.The objective of this work was to verify the incidence of ascites on grand parents, breeders and commercial broilers from the same genetic strain of birds, fed with high energy level ration, from the first day of age to 39 days old. All birds were grown as commercial broilers receiving a ration ad libitum with 3,050 kcal/ME; birds from female line, male line and commercial broilers were tested. A total of 2,700 birds were housed at random in a experimental facility of 8x76 m, with 27 compartments of 3x3.5 m each and 100 birds per division. A factorial design was used with three replications per treatment. The incidence of ascites was not dependent on genetic category.Universidade Estadual Paulista Dep. de Apoio, Produção e Saúde AnimalUniversidade Federal de Minas Gerais Escola de VeterináriaUniversidade Estadual Paulista Dep. de Apoio, Produção e Saúde Anima
Palestra 2. Formulação não linear. Capacitação prática para as pessoas da indústria.
No full textA formulação de rações apresenta grande complexidade por envolver muitas opções de alimentos (ingredientes) e também por atender as exigências de números elevados de nutrientes e restrições. Contudo, o que manualmente seria extremamente difícil, com o uso de programas de computador a formulação é precisa e ágil para todos os ajustes desejados. A versão do PPFR (Programa Prático para Formulação de Rações / frangos de corte) foi idealizada para fins didáticos, mas mostra-se compatível para formulações em condições reais, tendo como característica a possibilidade do usuário ter total acesso às fórmulas, podendo alterá-las quando necessário. Não há nenhum custo no download e na instalação desta planilha para cálculo de ração que usa o conceito de proteína ideal. O programa é destinado à nutricionistas-formuladores (Zootecnistas, Agrônomos e Médicos Veterinários). Palavras-chave: aves, avicultura, alimentação, balanceamento de ração, tabelas de exigências, composição, métodos para formular, programação não-linear, modulação, Tabelas brasileiras 2017, cálculo de ração, Ração de Lucro Máximo, Feed formulation, Practical Program for Feed Formulation 2.0
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