1,721,007 research outputs found
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
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
Levantamento de solos da fazenda Lavorato no município de Santo Antônio do Descoberto – GO
Full text linkO presente estudo objetivou o levantamento pedológico da fazenda Lavorato, com área de 79,24 hectares, localizada em uma área adjacente aos limites do Distrito Federal, no município de Santo Antônio do Descoberto - GO. Para a caracterização dos solos e posterior classificação conforme o Sistema Brasileiro de Classificação de Solos (2013), foram abertos cinco perfis considerados representativos dos solos na área, estes escolhidos por observação da mudança da paisagem. Conhecidas as classes de solo ocorrentes e com o auxílio de ferramentas de geoprocessamento, foi confeccionado um mapa de solos da fazenda, o qual demonstrou predominância de Neossolo Litólico - RL (84,25%) frente ao Cambissolo – C (14,69%) e Gleissolo - G (1,06%). O levantamento de solos da fazenda Lavorato foi o produto do refino de dois mapas disponibilizados ao público pela Embrapa Solos: Mapa de Reconhecimento de Baixa Intensidade, de 2002, e Mapa de Solos do Brasil, de 2011. Sabendo que ambos trabalhos possuem escala inferior, as análises mostraram que os mapas de solos disponibilizados pela Embrapa Solos podem ser utilizados apenas para áreas maiores, pois não conseguem ser assertivos em comparação à mesma escala do mapa de solos. Os cálculos da planimetria dos mapas mostraram grande variação, sendo a predominância do Cambissolo refutada pelo mapa confeccionado para a fazenda. _____________________________________________________________________________ ABSTRACTThe present work main objective is the pedological survey of Farm Lavorato, with an area of 79.24 hectares, located on the surroundings of Distrito Federal, in the city of Santo Antonio do Descoberto - GO. In order to classify the type of soils according to the Brazilian System of Soil Classification, five profiles, considered as representative of the soil in the area, were opened and chosen by landscape changing observation. Once the soil classes found were determined, geoprocessing tools were used to develop a map of the farm soils, which demonstrated the predominance of Neossolo Litólico (84.25%) compared to Cambissolo (14.69%) and Gleissolo (1.06%). The exploratory soil survey was compared to two maps available to the general public by Embrapa Solos: Low Intensity Map Recognition, 2002, and Soil Map of Brazil, 2011. Knowing that both works have smaller scale, the analysis showed that the soil maps made available by Embrapa Soils can only be used for larger areas because they cannot be assertive in comparison to the scale of soil maps. The calculation of planimetries of the maps showed a wide variation , with the predominance of Cambissolo refuted by the map made for the farm
Avaliação da fertilidade do solo e recomendação de calagem e adubação de área degradada e de plantio de eucalipto Fazenda Água Limpa - FAL/UnB
Full text linkMonografia (graduação)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Florestal, 2016.O trabalho tem como objetivo a avaliação da fertilidade do solo de uma área
degradada e de uma área com plantio de eucalipto e a recomendação de calagem e adubação
para as duas áreas de estudo na Fazenda Água Limpa - FAL/UnB. Foi coletado duas amostras
compostas de solo na área degradada nas profundidades de 0 a 20 cm e de 20 a 40 cm, onde
foi removida a cobertura vegetal para empréstimo de material na construção de uma barragem
adjacente ao local. Também foi coletado duas amostras compostas de solo da área com plantio
de eucalipto, implantado em fevereiro de 2009, nas mesmas profundidades. Todas as quatro
amostras foram coletadas em fevereiro de 2016 e enviadas ao laboratório Soloquímica para
análise das características químicas e granulométricas do solo de cada área. A interpretação
dos resultados das análises do solo foi feita por meio dos teores de P, K, Ca, Mg, M.O.,
saturação por alumínio, pH e textura do solo. Resultaram na recomendação da necessidade de
calagem e adubação das áreas em estudo. A área degradada foi recomendado a dose 6,3 t ha-1
de esterco bovino curtido para fornecer ou a dose de adubação orgânica e mineral para a área
degradada de 4,9 t ha-1 de esterco bovino curtido com cloreto de potássio e superfosfato
simples. A área com plantio de eucalipto foi recomendado a calagem com calcário dolomítico
em dose de de 270 kg ha-1 e adubação para P com dose de 1,5 t ha-1 de esterco bovino curtido
e superfosfato simples.The study aims to evaluate the soil fertility of a degraded area and an area with
eucalyptus planting and recommendation of liming and fertilization for the two areas of study
at Fazenda Água Limpa - FAL/UnB. It was collected two composite samples of soil on
degraded area in the depths 0-20 cm and 20-40 cm, which was removed vegetation cover for
lending material in the construction of a dam next to the site. It was also collected two
composite samples of soil area with eucalyptus, introduced in February 2009, at the same
depths. All four samples were collected in February 2016 and sent to Soloquímica laboratory
for analysis of chemical and textural characteristics of the soil in each area. Interpretation of
the results of soil analysis was done by means of P, K, Ca, Mg, O.M., aluminum saturation,
pH and soil texture. They resulted in the recommendation of the need for liming and
fertilization of the areas under study. The degraded area was recommended dose 6.3 t ha-1 of
cattle manure to provide or the dose of organic and mineral fertilizers for the degraded area of
4.9 t ha-1 of cattle manure with potassium chloride and superphosphate simple. The area with
eucalyptus plantation was recommended liming with dolomitic limestone at a dose of 270 kg
ha-1 and P fertilization for a dose of 1.5 t ha-1 of cattle manure and superphosphate
Programas de regularização ambiental e a plataforma Webambiente
Full text linkDissertação (mestrado) — Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Florestal, Programa de Pós-Graduação em Ciências Florestais, 2022.A recuperação de áreas degradadas com vegetação nativa está prevista em compromissos
internacionais e nacionais, além de ser uma exigência das leis ambientais em nosso país. No
entanto, essa possibilidade de recuperação perante a lei, nunca deve ser usada como justificativa
para destruir ou danificar ecossistemas existentes. No campo jurídico federal, a Lei de Proteção
da Vegetação Nativa (Lei n° 12651/2012) é a principal lei ambiental para regulamentar a
proteção das florestas e demais formas de vegetação. Essa lei estabelece que cabe aos estados
implementar o Programa de Regularização Ambiental (PRA), com regras e especificidades,
para que o processo de regularização dos passivos ambientais aconteça. Nesse sentido, buscouse analisar a situação de alguns estados da federação com relação ao seu PRA, com destaque
para os estados Acre, Bahia, Mato Grosso, Mato Grosso do Sul, Rondônia e Pará, onde já há
regulamentação e implementação. Além disso, tendo em vista o uso e disseminação de
tecnologias e ferramentas de suporte à recomposição da vegetação nativa, este estudo fez uma
análise da plataforma WebAmbiente, criada numa parceria da Embrapa com o Ministério do
Meio Ambiente, para auxiliar a recomposição da vegetação nativa. Por meio da aplicação de
questionário com 25 questões enviadas aos quase 3000 usuários cadastrados e respondido por
251 deles (8,47%) foi possível avaliar como a ferramenta tem sido utilizada e como ainda pode
ser melhorada por meio de ações como a inclusão de maior número de espécies e experiências
de recuperação.The recovery of degraded areas with native vegetation is foreseen in international and national
commitments, in addition to being a requirement of the environmental laws in the country.
However, this possibility of recovery under the law, must be used as a justification for
destroying or destroying existing ecosystems never. In the federal legal field, the Native
Vegetation Protection Law is one of the main environmental laws for the protection of forests
and other forms of vegetation. In addition, this law establishes that it is up to the states to
implement the Environmental Regularization Program (PRA), with rules and specificities, so
that the process of regularization of environmental liabilities takes place. In this sense, the
situation of some states of the analysis was sought with their PRA, with emphasis on the states
Acre, Bahia, Mato Grosso, Mato Grosso do Sul, Rondônia and Pará, where they are already
regularized and implemented. In addition, in view of the use and dissemination of technologies
and tools to support the protection of native vegetation, this study was created in partnership
between Embrapa and the Ministry of the Environment, to assist in the restoration of native
vegetation. Through the application of bio as the best tool with 25 questions sent to 3000
registered users, it was evaluated which ones are used and how the tool with the greatest number
of species and recovery experiences can still be added.Faculdade de Tecnologia (FT)Departamento de Engenharia Florestal (FT EFL)Programa de Pós-Graduação em Ciências Florestai
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