1,720,954 research outputs found
The Problem Solving Ability in Vector Addition by Using Grid and Parallelogram
Full text linkThis study aims to analyze the problem solving ability of vector addition using the grid and parallelograms. The subjects of this study consisted of 26 students and 4 respondents were selected by giving tests. The selection of respondents was carried out in the form of a multiple choice test then grouped and categorized, and 2 respondents were selected each representing high and low. The data were obtained through giving tests to selected respondents and direct interviews with respondents. The test consists of four question numbers on vector material where two question numbers consist of vectors using a grid and two question numbers on vectors without a grid and after that an interview is conducted. The research data were analyzed through the Polya stage score. The results showed that students were still less able to solve the problem of vector addition using the grid. Students have a lot of difficulty at the stage of implementing the plan and checking back. This is because students make technical errors which include the inability of students to perform mathematical / calculation operations
Pengaruh Model Pembelajaran Berbasis Masalah dalam Strategi Penalaran Kausal berbasis Etnosains terhadap Hasil Belajar Fisika
Full text linkThis study aims to determine whether there was an effect of problem-based learning models in ethnoscience-based causal reasoning strategies on physics learning outcomes. The type of research used was an experimental research design with the equivalent pretest-posttest design. The sample was selected using purposive sampling technique and resulted in class XI IPA 1 as the experimental class and class XI IPA 2 as the control class. The instrument used is a test of learning outcomes in the form of multiple choice. Based on the results of data processing, the average posttest score of the control class students was 11.30 while the experimental class obtained the average posttest score was 15.30. Analysis of the test data was carried out using a two-party t-test statistical technique to test the difference in the mean scores of student learning outcomes with a significant level of =0.05. The results were tcount = 3.60 and ttable = 2.02. This means that the value of tcount was outside the H0 acceptance area. So it can be concluded that there was an effect of problem-based learning models in ethnoscience-based causal reasoning strategies on student physics learning outcomes
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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