1,720,954 research outputs found
Using STEM Workshop to Elicit Chemistry Teachers’ Value of Hands-on Activity and Visualization
Get PDFThis study investigated how teachers’ value hands-on activity and teachers’ visualization during performing the STEM activity. The activity expected the teachers to intuitive apply concepts of molecular polarity theory to apply in different contexts. Sample was 152 Thai chemistry teachers who had registered for the two-day workshop entitled “the Chemistry Learning Management for Learners in the 21st Century” professional development program. Teacher’s internal and external representations of solubility and polarity concepts were collected, classified, coded and analyzed by content analysis. Results revealed that 1) most teachers perceive the hands-on activity is useful because it can help developing students’ science process skills and make learning more active, 2) teachers’ internal representation of the solubility and polarity concepts was illustrated to be complete, incomplete and alternative conception, and 3) an external representation mode that the teachers’ usage are verbal, concrete/material and symbolic one. The result can be benefit for researchers to systematically plan further research study in the area of model and modelling of chemistry teachers, because the interplay between internal and external representations during chemistry instruction is crucial and can be the indicator of how verbal external representation might be effectively used in class to scaffold students to expand their comprehension, instead of leading to the confusion by chemistry teachers themself
The Validity and Practical Test of STEM@Home Learning Design to Empower Student's Science Literacy
Get PDFThe science, technology, engineering, and mathematics (STEM) approach is one of the approaches to teaching integrative science contextually and to promote science literacy, which is identified to remain low among Indonesian students. Applying STEM projects to grade 8 students has been challenging during the pandemic. Thus, there is a need to develop an online STEM project that accommodates learning at home or distance learning, is suitable during the pandemic, and incorporates training to improve science literacy. Therefore, we developed a STEM@Home Learning Design by adopting the Flower STEM-Approach Design using the topic of vibration, wave, and sound. This study aims to reveal the validity of the learning design by involving 44 reviewers (lecturers and teachers), followed by the practical test run by 117 reviewers of lecturers, teachers, and student teachers majoring in science education. A questionnaire consisting of 30 items on learning design, instructional setup, and student competencies was distributed online. On average, the respondents scored 4 to 5 on a 5-point scale of the STEM@Home Learning Design in each indicator (86.3%). It can be concluded that the STEM@Home Learning Design is feasible to proceed to the empirical study
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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