1,720,954 research outputs found
Influência da utilização de flutuadores na aquisição de habilidades aquáticas
Get PDFEste estudo teve como objetivo analisar a influência da utilização de flutuadores na aquisição das habilidades aquáticas, através da comparação de dois grupos de crianças iniciantes em um programa de atividades aquáticas. A amostra foi composta por 17 crianças, com idade entre 36 e 47 meses. Um grupo composto por 8 crianças, participou das aulas fazendo uso dos flutuadores (CFlut), e o segundo grupo, composto por 9 crianças, participou das aulas sem a utilização dos flutuadores (SFlut). Os alunos participaram de uma intervenção com duração de oito semanas, duas aulas por semana e cada aula possuía 30 minutos de duração. Foi utilizada a Escala de Erbaugh para avaliar a aquisição das habilidades aquáticas em dois momentos avaliativos: no período pré-intervenção e no período pósintervenção. Para análise dos dados utilizou-se estatística descritiva (mediana, valores mínimos a máximos) e testes para comparação intra e inter-grupos para dados não-paramétricos (Testes de Wilcoxon e U de Mann-Whitney, respectivamente). Não houve diferenças significativas entre os dois grupos, quando os grupos foram comparados em relação à soma geral das tarefas. No entanto, nas três tarefas que constituem os deslocamentos e, ainda, na tarefa de saltos, o grupo sem flutuadores apresentou melhores resultados. Apesar de os resultados terem demonstrado superioridade do grupo sem flutuadores em relação ao grupo com flutuadores em algumas habilidades, o uso dos flutuadores não deve ser condenado. Isso porque este tipo de material oferece maiores possibilidades de interação com o meio líquido, atuando como um aspecto motivacional para a aprendizagem, principalmente para aquelas crianças que sentem-se inseguras em relação ao meio líquido.The present study was designed to analyze the influence of flotation devices (armbands) on the aquatic abilities acquisition, by comparing two groups of children without early experience in aquatic abilities. Seventeen children (ages up from 36 to 47 months) composed the sample. An eight-child group took part of the classes using floats (with flotation devices –WFl) and the second group, with by nine children, did it without the usage of floats (no flotation devices – NFl). Both group of children participated of the intervention for eight weeks, at a two-30-minute class per week basis. The Erbaugh Scale was used on two different occasions to assess the aquatic abilities acquisition: the pre-intervention period and pos-intervention period. For data analysis it was used descriptive statistics (median, minimum and maximum values) and comparison tests for non-parametric data (Wilcoxon and U de Mann-Whitney Test). No significant differences between the two groups were found, when assessed regarding the sum of the tasks. However, in the three tasks that constitute the displacements, and yet the jumping tasks, the NFl group presented better results. Though the final results demonstrated a level of superiority for the NFl group over the WFl group in some of aquatic abilities, flotation devices cannot be despised, because this type of equipment offer more possibilities of interaction with the aquatic environment, and they work as a motivational tool for learning, especially for the children showing insecurity towards the aquatic environment
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
Utilização de Flutuadores em Aulas de Natação para Crianças: Estudo Interventivo
No full textObjetivou-se analisar a influência da utilização de flutuadores colocados nos braços sobre a aquisição de habilidades aquáticas em crianças (mediana da idade, em meses, de 40 ± 4.1). Elas foram divididas em dois grupos: aulas de natação com flutuadores (CFlut, n = 8) e sem flutuadores (SFlut, n = 9) e avaliadas com a Escala de Erbaugh de desempenho motor aquático, pré e pós-intervenção de oito semanas. Relatórios descritivos foram redigidos com informações sobre comportamento das crianças ao longo da intervenção e dificuldades encontradas pelo professor. Em relação à análise geral das tarefas, os grupos não apresentaram diferenças, no entanto, o grupo SFlut apresentou melhores resultados nas tarefas de deslocamento e saltos. A ausência de flutuadores pode ter gerado melhor percepção das forças que atuam na água
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
- …
