1,721,081 research outputs found
Effect of Problem Based Learning Model Towards Students’ Critical Thinking and Learning Competences in Grade VIII in SMPN 21 Padang
No full textLearning process still emphasizes on knowledge aspect and materials comprehension, students’ active participation is very low, and students’ learning competencies are still low too. One way to solve those problems is by doing research using Problem Based Learning model. The purpose of the research was to know the effect of Problem Based Learning model towards students’ critical thinking and students’ learning competencies. It was a quasi experimental research. The population of the research was students of VIII grade in SMPN 21 Padang in academic year 2017/2018. The samples were taken by using random sampling technique. As a result, class VIII3 was as experimental class and class VIII4 was as control class. The instruments used were objective test, critical thinking ability test, observation sheet to see affective aspect and assessment sheet to see psychomotor aspect. The analysis of data used T-test for cognitive competence and Mann Whitney U test for affective and psychomotor competences. The result showed that students’ critical thinking ability and score in learning IPA of experimental class is better than students’ critical thinking ability and score in learning IPA of control class
Development Of Pisa-Oriented Problem Based Learning Media To Improve Mathematic Problem Solving Abilities Of VII Grade Junior High School Students
No full textThe learning media used in schools, such as worksheet, are not optimal yet to help students build their understanding. For this reason, it is necessary to develop learning media so that they can provide opportunities for students to find their own concepts and can be remembered for a long time. This study developed a PISA-oriented problem-based learning (PBL) media. This research was a development research (R&D). This research used the Plomp model which consisted of three stages, namely the preliminary research stage, the prototyping phase, and the assessment phase. At the preliminary research stage, needs analysis, curriculum analysis, concept analysis, student analysis was applied. In the prototype-making phase, a prototype development was applied which had been validated and tested. Whereas in the assessment phase, the developed prototype was tested and assessed for practicality and effectiveness, which was assessed by observation, questionnaires, and student learning outcomes. The validation of learning tools is viewed from the content validity and construct validity. The average value of the PISA-oriented PBL-based student worksheet validation was 3.57 with a very valid category. Based on the student response questionnaire, it was found that the learning media was practical with a percentage of 86.83%. Problem solving problems were given to test the effectiveness of the learning media being developed, and the results were these devices are effective for use. After all stages of development, it was concluded that the media being developed were valid, practical, and effective
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
No full textWe 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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