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Organ-related distribution of phospholemman in the spiny dogfish Squalus acanthias
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Possibilidades de uso didático do artefato mesopotâmico BM 13901 no ensino de Matemática
No full textO presente artigo tem como principal objetivo identificar possibilidades didáticas sobre o artefato mesopotâmico BM 13901 para o ensino de Matemática. Trata-se de uma pesquisa qualitativa e bibliográfica desenvolvida através de um minicurso para quatro professores do 9º ano do Ensino Fundamental. Utilizou- se a análise da conversação para elucidar possibilidades didáticas sobre o uso do artefato. Esse tablete mesopotâmico, elaborado no século XVIII a. C., apresenta problemas algébricos relacionados a resoluções de equações de segundo grau. Este estudo, que apresenta um dos problemas dispostos no texto do artefato, foi explorado junto aos professores participantes do minicurso. O aporte teórico se situa em torno da História para o ensino de Matemática e em produções baseadas no BM 13901 e sua vinculação ao ensino de Matemática. Foram apontadas possibilidades didáticas distribuídas em cinco categorias: quanto aos conteúdos que emergem; aos aspectos interdisciplinares, ao desenvolvimento de projetos escolares, ao desenvolvimento de pesquisas com alunos e ao uso de tecnologias. Consideramos, assim, que o BM 13901 constitui um importante artefato para fomentar discussões e estudos em sala de aula que contribuam para o processo de ensino e aprendizagem de Matemática.
Possibilities of didactic use of the Mesopotamian artifact BM 13901 in teaching Mathematics
Abstract
The main objective of this article is to identify didactic possibilities on the Mesopotamian artifact BM 13901 for teaching Mathematics. It is a qualitative and bibliographical research developed through a short course for four teachers of the 9th grade of Elementary School. Conversation analysis was used to elucidate didactic possibilities about the use of the artifact. This Mesopotamian tablet, made in the 18th century BC., presents algebraic problems related to resolutions of quadratic equations. This study, which presents one of the problems set out in the text of the artifact, was explored with the teachers participating in the short course. The theoretical contribution is based around History for the teaching of Mathematics and productions based on BM 13901 and its link to the teaching of Mathematics. Didactic possibilities distributed in five categories were pointed out regarding: the contents that emerge; to interdisciplinary aspects; the development of school projects; the development of research with students; and the use of technologies. We therefore consider that the BM 13901 constitutes an important artifact for encouraging discussions and studies in the classroom that contribute to the process of teaching and learning Mathematics.
The main objective of this article is to identify didactic possibilities on the Mesopotamian artifact BM 13901 for teaching Mathematics. It is a qualitative and bibliographical research developed through a short course for four teachers of the 9th grade of Elementary School. Conversation analysis was used to elucidate didactic possibilities about the use of the artifact. This Mesopotamian tablet, made in the 18th century BC., presents algebraic problems related to resolutions of quadratic equations. This study, which presents one of the problems set out in the text of the artifact, was explored with the teachers participating in the short course. The theoretical contribution is based around History for the teaching of Mathematics and productions based on BM 13901 and its link to the teaching of Mathematics. Didactic possibilities distributed in five categories were pointed out regarding: the contents that emerge; to interdisciplinary aspects; the development of school projects; the development of research with students; and the use of technologies. We therefore consider that the BM 13901 constitutes an important artifact for encouraging discussions and studies in the classroom that contribute to the process of teaching and learning Mathematics
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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