1,721,033 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
Modelagem & linguagem científica no ensino médio
Full text linkEsta pesquisa objetiva analisar a Linguagem Científica de estudantes do Ensino Médio Integrado expressa nas produções escritas a fim de especificar em que medida a Modelagem Matemática contribui para o desenvolvimento da Linguagem Científica. Para isso se utilizou os procedimentos do Mapeamento na Pesquisa Educacional, constituindo assim quatro Mapas: de Identificação; o Teórico; de Campo; e o de Análise. O Mapa Teórico se constitui de referenciais que versam sobre Modelagem Matemática, Linguagem e Linguagem Científica, aportes teóricos de base empírica e analítica. A linguagem é entendida como um dos sistemas semióticos que se constituem em uma cultura distinguindo-se dos demais, pois atua como sistema de codificação para os outros. O Mapa de Campo, composto a partir de um levantamento de produções oriundas da Iniciação Científica de uma Instituição pública de ensino integrado, contém dez produções elaboradas no período entre 2004 e 2012, nas quais há utilização de Modelagem Matemática no processo. Extraíram-se delas fragmentos de modo a constituir o Mapa-guia de cada produção, organizados nas três fases da Modelagem Matemática. Para análise dos dados elegeram-se quatro categorias contemplando aspectos linguísticos e aspectos matemáticos: taxonomia técnica, processos semântico-gramaticais, representações visuais e letramento matemático. Os resultados e discussão estão contidos no Mapa de Análise.Os resultados indicam que os estudantes fazem uso de linguagem científica na expressão do processo de Modelagem Matemática utilizando, simultaneamente, aspectos linguísticos e matemáticos que são complementares na produção de significados. Na construção textual, permeada de recursos semióticos, fazem uso de linguagens cujas funções distintas preponderam, ou seja, adicionam outro significado ao já existente. Percebeu-se o desenvolvimento das habilidades relativas ao letramento matemático e científico. Desta forma, mediante o auxílio de medidas de associação e correlação de dados e escore padronizado, cinco das produções obtiveram desempenho geral (média das quatro categorias) acima do índice médio dos escores, caracterizando assim o uso da Linguagem Científica. Sendo assim, defende-se a tese de que a Modelagem Matemática contribui para o desenvolvimento da Linguagem Científica de estudantes do Ensino Médio uma vez que evidenciou-se a implantação competente do significado matemático no contexto, quando expressão verbal e representações visuais foram utilizados de modo interdependente.This research aims to study the Scientific Language of high school students, expressed in the written productions in order to specify to what extent Mathematical Modeling contributes to the development of the Scientific Language. For this purpose, the procedures of Educational Research Mapping were used, constituting four Maps: identification, theoretical, field and analysis. The theoretical map, constituted of theoretical references, explains about Modelling Mathematical, Language and Scientific Language, theoretical contributions of both empirical and analytic base. Language is understood as one of the semiotic systems, these that make a culture distinguish itself from the others because it acts as a codification system for others. The field map, composed from a survey about the production of the Scientific Initiation in a High School public institution, contains 10 productions elaborated between 2004 and 2012, in which Modelling Mathematical was used in the process. From them, fragments were extracted in order to constitute the Guide Map of each production, organized in the three phases of Modelling Mathematical. For the data analysis, four categories were chosen: linguistic aspects and mathematical aspects: technical taxonomy, semantic-grammatical processes, visual representations and mathematical literacy. The results and discussion are contained in the analysis Map.The results indicate that students make use of scientific language in the expression of the process of Modelling Mathematical using simultaneously linguistic aspects and mathematical aspects, both complementary in the production of meanings. In textual construction, permeated with semiotic resources, they make use of languages whose distinct functions preponderate, that is, they add another meaning to the existing one. The development of the skills related to mathematical and scientific literacy was perceived. Thus, through the use of measures of association and data correlation and standardized score, five of the productions obtained general performance (average of four categories) above the average score of high school students, thus characterizing the use of the Scientific Language. Thus, it is defended the thesis that Mathematical Modeling contributes to the development of the Scientific Language of High School students since the competent implementation of the mathematical meaning in the context was evidenced, when verbal expression and visual representations were used in a way interdependent
Modelagem e linguagem cient?fica no ensino m?dio
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Previous issue date: 2017-03-20This research aims to study the Scientific Language of high school students, expressed in the
written productions in order to specify to what extent Mathematical Modeling contributes to
the development of the Scientific Language. For this purpose, the procedures of Educational
Research Mapping were used, constituting four Maps: identification, theoretical, field and
analysis. The theoretical map, constituted of theoretical references, explains about Modelling
Mathematical, Language and Scientific Language, theoretical contributions of both empirical
and analytic base. Language is understood as one of the semiotic systems, these that make a
culture distinguish itself from the others because it acts as a codification system for others.
The field map, composed from a survey about the production of the Scientific Initiation in a
High School public institution, contains 10 productions elaborated between 2004 and 2012, in
which Modelling Mathematical was used in the process. From them, fragments were extracted
in order to constitute the Guide Map of each production, organized in the three phases of
Modelling Mathematical. For the data analysis, four categories were chosen: linguistic aspects
and mathematical aspects: technical taxonomy, semantic-grammatical processes, visual
representations and mathematical literacy. The results and discussion are contained in the
analysis Map. The results indicate that students make use of scientific language in the
expression of the process of Modelling Mathematical using simultaneously linguistic aspects
and mathematical aspects, both complementary in the production of meanings. In textual
construction, permeated with semiotic resources, they make use of languages whose distinct
functions preponderate, that is, they add another meaning to the existing one. The
development of the skills related to mathematical and scientific literacy was perceived. Thus,
through the use of measures of association and data correlation and standardized score, five of
the productions obtained general performance (average of four categories) above the average
score of high school students, thus characterizing the use of the Scientific Language. Thus, it
is defended the thesis that Mathematical Modeling contributes to the development of the
Scientific Language of High School students since the competent implementation of the
mathematical meaning in the context was evidenced, when verbal expression and visual
representations were used in a way interdependent.Esta pesquisa objetiva analisar a Linguagem Cient?fica de estudantes do Ensino M?dio
Integrado expressa nas produ??es escritas a fim de especificar em que medida a Modelagem
Matem?tica contribui para o desenvolvimento da Linguagem Cient?fica. Para isso se utilizou
os procedimentos do Mapeamento na Pesquisa Educacional, constituindo assim quatro
Mapas: de Identifica??o; o Te?rico; de Campo; e o de An?lise. O Mapa Te?rico se constitui
de referenciais que versam sobre Modelagem Matem?tica, Linguagem e Linguagem
Cient?fica, aportes te?ricos de base emp?rica e anal?tica. A linguagem ? entendida como um
dos sistemas semi?ticos que se constituem em uma cultura distinguindo-se dos demais, pois
atua como sistema de codifica??o para os outros. O Mapa de Campo, composto a partir de um
levantamento de produ??es oriundas da Inicia??o Cient?fica de uma Institui??o p?blica de
ensino integrado, cont?m dez produ??es elaboradas no per?odo entre 2004 e 2012, nas quais
h? utiliza??o de Modelagem Matem?tica no processo. Extra?ram-se delas fragmentos de modo
a constituir o Mapa-guia de cada produ??o, organizados nas tr?s fases da Modelagem
Matem?tica. Para an?lise dos dados elegeram-se quatro categorias contemplando aspectos
lingu?sticos e aspectos matem?ticos: taxonomia t?cnica, processos sem?ntico-gramaticais,
representa??es visuais e letramento matem?tico. Os resultados e discuss?o est?o contidos no
Mapa de An?lise. Os resultados indicam que os estudantes fazem uso de linguagem cient?fica
na express?o do processo de Modelagem Matem?tica utilizando, simultaneamente, aspectos
lingu?sticos e matem?ticos que s?o complementares na produ??o de significados. Na
constru??o textual, permeada de recursos semi?ticos, fazem uso de linguagens cujas fun??es
distintas preponderam, ou seja, adicionam outro significado ao j? existente. Percebeu-se o
desenvolvimento das habilidades relativas ao letramento matem?tico e cient?fico. Desta
forma, mediante o aux?lio de medidas de associa??o e correla??o de dados e escore
padronizado, cinco das produ??es obtiveram desempenho geral (m?dia das quatro categorias)
acima do ?ndice m?dio dos escores, caracterizando assim o uso da Linguagem Cient?fica.
Sendo assim, defende-se a tese de que a Modelagem Matem?tica contribui para o
desenvolvimento da Linguagem Cient?fica de estudantes do Ensino M?dio uma vez que
evidenciou-se a implanta??o competente do significado matem?tico no contexto, quando
express?o verbal e representa??es visuais foram utilizados de modo interdependente
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
Estratégias de resolução de situação problema de modelagem matemática e o pensamento proporcional: um estudo com estudantes de pedagogia
Full text linkO estudo objetiva compreender e identificar as estratégias utilizadas pelos estudantes de Pedagogia para resolver uma situação problema de Modelagem Matemática que podem envolver raciocínio proporcional. Para isso, um estudo de caso foi desenvolvido com uma turma de 32 estudantes do quinto semestre de Pedagogia de uma instituição pública. Os dados advieram de uma prática de Modelagem Matemática desenvolvida em sala durante o período destinado ao estudo da tendência, e foram obtidos do material elaborado pelos 13 grupos participantes. A análise evidenciou que os acadêmicos, diante da situação problema de Modelagem Matemática, fazem uso de diferentes estratégias para resolução, nas quais foi evidenciado a utilização do fator escalar multiplicativo e do fator funcional, principalmente. Dentre as estratégias, as com erro não foram identificadas e, em todas elas, há possibilidades de que sejam exploradas nos anos iniciais. Concluiu-se que, em 11 grupos, as estratégias evidenciam utilização de pensamento proporcional avançado e pré-formal
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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