1,720,958 research outputs found
Fatores de produção, desenvolvimento econômico regional e agricultura no Brasil: Uma abordagem econométrica espacial
Get PDFAgriculture has a great effect on the development process of a region and production land, labor, and technology are determinant factors in its dynamism. This work carries out a spatial analysis for each production factor of Brazilian municipalities in 2006 and 2017 and intends to verify if there are patterns of association and agglomerations. This work is applied research of quantitative and exploratory nature. The Exploratory Analysis of Spatial Data (ESDA) was used to perform spatial analysis for each production factor in Brazilian municipalities in 2006 and 2017 and to check the patterns of association and agglomerations. The main agricultural activities and practice are related to exports as proposed by North. The formation of clusters verified both in the use of the factors of land, labor and technology, and in the value of agricultural production has a polarized role in the Brazilian space, as described by Perroux. This polarization and the formation of clusters expanded at certain points over time, indicating the formation of new links with neighboring municipalities (a la Hirschman). The spatial association pattern was significant in all analyzed variables, with emphasis on the non-physical technology factor, presenting the highest spatial autocorrelation coefficient in both periods analyzed.A agricultura possui grande efeito no processo de desenvolvimento de uma região, sendo os fatores de produção terra, trabalho e tecnologia determinantes no dinamismo deste setor. Este trabalho tem como objetivo efetuar uma análise espacial para cada fator de produção dos municípios brasileiros, em 2006 e 2017, e verificar se há padrões de associação e aglomerações. Este trabalho é uma pesquisa aplicada de natureza quantitativa e explicativa. A Análise Exploratória de Dados Espaciais (ESDA) foi utilizada para realizar análises espaciais para cada fator de produção nos municípios brasileiros em 2006 e 2017 e para verificar os padrões de associação e aglomerações. As principais atividades e práticas agrícolas estão relacionadas às exportações conforme proposto pelo North. Percebe-se que a formação de clusters verificada tanto no uso dos fatores de terra, trabalho e tecnologia, quanto no valor da produção agrícola exerce uma figura polarizada no espaço brasileiro, assim como descrito por Perroux. Essa polarização e a formação de clusters expandiram-se em certos pontos ao longo do tempo, indicando a formação de novos encadeamentos com os municípios vizinhos (a la Hirschman). O padrão de associação espacial foi significativo em todas as variáveis analisadas, com destaque para o fator tecnologia não física, apresentando o maior coeficiente de autocorrelação espacial nos dois períodos analisados
Localização, especialização e concentração das atividades produtivas no Mato Grosso do Sul entre 1980 e 2010
Get PDFThe objective of this study was to analyze the location, specialization and concentration of productive activities in Mato Grosso do Sul between 1980 and 2010. It was used the regionalization of Minimal Comparable Areas (AMCs) so that it was possible to make intertemporal spatial comparisons in the period and estimated them. Use the Locational Quotient (QL) to verify spatial changes in concentration and specialization. The results show that agricultural activities were the most widespread in Mato Grosso do Sul, with the AMCs of Campo Grande, Corumbá, Douradina and Selvíria presenting the most diversified productive structures. Finally, the conclusion was that economic activities are spatially concentrated in the MS, with the AMCs with the most diversified productive structures also being the most developed.O objetivo deste estudo foi analisar a localização, especialização e concentração das atividades produtivas no Mato Grosso do Sul entre 1980 e 2010. Utilizou-se da regionalização de Áreas Mínimas Comparáveis (AMCs) para que fosse possível fazer comparações espaciais intertemporais no período e estimou-se o Quociente Locacional (QL) para verificar as mudanças espaciais de concentração e especialização. Os resultados mostram que as atividades agropecuárias foram as mais difundidas espacialmente no Mato Grosso do Sul, com as AMCs de Campo Grande, Corumbá, Douradina e Selvíria apresentando as estruturas produtivas mais diversificadas. Por fim, a conclusão foi de que as atividades econômicas são concentradas espacialmente no MS, com as AMCs com estruturas produtivas mais diversificadas sendo também as mais desenvolvidas
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
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