1,721,045 research outputs found
Four-tier chemical bonding instrument: Its development and validation
Full text linkThis study highlights the development and validation of a four-tier instrument in chemical bonding to produce a valid and reliable instrument in the discipline. The instrument was developed according to the procedure proposed by Habiddin & Page (2019), including (1) mapping concept (2) testing & interviewing, (3) identifying & collecting studen
Monsoon and fasting month
No full textThis is a recording of two men, Rahmat Wahyudi and Habiddin at Wahyudi's house. Wahyudi is a 45 year old man, married to a woman from the same village. Habiddin is a 25 year old man who is also married to a woman from Pondok Prasi. Both speakers are relative and fishermen who own their own boats. They are talking about fishing especially regarding how monsoon and fasting affect their work such as they cannot go fishing or there is no catch. The recording ends with Khairunnisa collecting metadata from the speakers. Leah Pappas assisted with the recording. The recording ends with Khairunnisa collecting metadata from the speakers. Video was recorded on Panasonic HC-V770, audio on Marantz PMD561 with an Audio Technica AT8022 Stereo Microphone.Ampenan, Lombok, West Nusa Tenggara province, Indonesi
Validating an instrument to investigate students’ conception of Salt hydrolysis
No full textThis paper outlines the development and validation of a Four-tier instrument in the topic of salt hydrolysis (FTISH). The instrument was developed by using the procedure of FTDICK instrument as published by Habiddin & Page (2019). This study was a part of other separates studies conducted by other groups of researchers including Devita, Habiddin & Suaidy (2019) (in press). This study involved 127 students in total and data collection were carried out two times involving 64 students in the first data collection and 63 students in the second one. The participants of both groups were public secondary school students from Malang. The FTISH consists of 23 questions. The results show that the validity of the questions ranged between 0.263 and 0.745. The reliability of the instrument was 0.80 and falls in the high category. The future implementation of the instrument to support the teaching and learning of salt hydrolysis are also discussed
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
Multimedia vs concrete model: Review of studies employing the tools in chemistry teaching
Full text linkThis paper describes previous studies regarding the use of multimedia or virtual model and concrete model to improve students’ understanding of chemistry. Thirty-three relevant papers in various topics, including stereochemistry, symmetry, chemical bonding, law conservation of matter, and others, were found and discussed. In particular, relevant studies in stereochemistry teaching is also discussed. REFERENCESAnggriawan, B. (2017). Pengaruh Pembelajaran Penemuan Terbimbing Berbantuan Multimedia terhadap Pemahaman Materi Simetri Mahasiswa dengan Kemampuan Spasial yang Berbeda. Universitas Negeri Malang.Beauchamp, P. S. (1984). “Absolutely” Simple Stereochemistry. Journal of Chemical Education, 61(8), 666. https://doi.org/10.1021/ed061p666Boukhechem, M.-S., Dumon, A., & Zouikri, M. (2011). The Acquisition of Stereochemical Knowledge by Algerian Students Intending to Teach Physical Sciences. Chemical Education Research and Practise, 12(3), 331–343. https://doi.org/10.1039/C1RP90040DChen, D., Chen, X., & Gao, W. (2013). The Application and Perspective of Multimedia Technology in Chemistry Experimental Instruction in China. Creative Education, 04(04), 241–247. https://doi.org/10.4236/ce.2013.44035Chen, D.-W., & Catrambone, R. (2014). Effects of Multimedia Interactivity on Spatial Task Learning Outcomes. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 58(1), 1356–1360. https://doi.org/10.1177/1541931214581283da Silva Júnior, J. N., Sousa Lima, M. A., Xerez Moreira, J. V., Oliveira Alexandre, F. S., de Almeida, D. M., de Oliveira, M. da C. F., & Melo Leite Junior, A. J. (2017). Stereogame: An Interactive Computer Game That Engages Students in Reviewing Stereochemistry Concepts. Journal of Chemical Education, 94(2), 248–250. https://doi.org/10.1021/acs.jchemed.6b00475Dayame, A. M. (2019). The Effects of Manipulative and Visual Models in Conceptualizing Fractions. International Journal of Advanced Research and Publications, 3(8), 80–85.Dori, Y. J., & Barak, M. (2001). Virtual and Physical Molecular Modeling: Fostering Model Perception and Spatial Understanding. Educational Technology & Society, 4(1), 61–74.Hakim, M. F., Maksum, A. H., Saragih, Y., & Hasanah, C. S. (2020). Analysis on the implementation of virtual versus reality laboratory. J-PEK (Jurnal Pembelajaran Kimia), 5(2), 59–65. https://doi.org/10.17977/UM026V5I22020P059Harrold, M. W. (1995). Computer-Based Exercises to Supplement the Teaching of Stereochemical Aspects of Drug Action1,2. American Journal of Pharmaceutical Education, 59, 20–26.Kirk, J. (2015). Using Manipulatives in The Chemisty Classroom as a Tool to Increase The Understanding and Knowledge of The Law of Conversation of Matter. St. John Fisher College: Fisher Digital Publications:Knowles, T. H. (2017). Using Eye-Tracking and Molecular Modelling to Explore Students’ Strategies for Solving Organic Stereochemical Problems. University of Northern Colorado.Koutalas, V. G., Antonoglou, L. D., Charistos, N. D., & Sigalas, M. P. (2014). Investigation of Students’ Ability to Transform and Translate 2D Molecular Diagrammatic Representations and its Relationship to Spatial Ability and Prior Chemistry Knowledge. Procedia - Social and Behavioral Sciences, 152, 698–703. https://doi.org/10.1016/j.sbspro.2014.09.265Lou, S.-J., & Lin, H.-C. (2012). Improving the Effectiveness of Organic Chemistry Experiments through Multimedia Teaching Materials for Junior High School Students. The Turkish Online Journal of Educational Technology, 11(2), 135–141.Muchson, M., Munzil, M., Winarni, B. E., & Agusningtyas, D. (2019). Pengembangan virtual lab berbasis android pada materi asam basa untuk siswa SMA. J-PEK (Jurnal Pembelajaran Kimia), 4(1), 51–65. https://doi.org/10.17977/UM026V4I12019P051O’Brien, M. (2016). Creating 3-Dimensional Molecular Models to Help Students Visualize Stereoselective Reaction Pathways. Journal of Chemical Education, 93(9), 1663–1666. https://doi.org/10.1021/acs.jchemed.6b00250Olimpo, J. T., Kumi, B. C., Wroblewski, R., & Dixon, B. L. (2015). Examining The Relationship Between 2D Diagrammatic Conventions and Students’ Success on Representational Translation Tasks in Organic Chemistry. Chemistry Education Research and Practice, 16(1), 143–153. https://doi.org/10.1039/C4RP00169AOlkun, S. (2003). Comparing Computer versus Concrete Manipulatives in Learning 2D Geometry. Journal of Computers in Mathematics and Science Teaching, 22(1), 43–56. https://doi.org/10.1501/0000984Sentongo, J., Kyakulaga, R., & Kibirige, I. (2013). The Effect of Using Computer Simulations in Teaching Chemical Bonding: Experiences with Ugandan Learners. International Journal of Education Science, 5(4), 433–441.Sevi̇Nç, B. (2010). The Effect Of Computer Based Instruction Enhanced With Concept Maps On Students’ Understanding Of Stereochemistry. International Conference on New Trends in Education and Their Implications, 301–306.Stieff, M., Bateman, R. C., & Uttal, D. H. (2005). Teaching and Learning with Three-dimensional Representations. In J. K. Gilbert (Ed.), Visualization in Science Education (pp. 93–120). Springer Netherlands. https://doi.org/10.1007/1-4020-3613-2_7Stieff, M., Scopelitis, S., Lira, M. E., & Desutter, D. (2016). Improving Representational Competence with Concrete Models. Science Education, 100(2), 344–363. https://doi.org/10.1002/sce.21203Stull, A. T., Barrett, T., & Hegarty, M. (2013). Usability of Concrete and Virtual Models in Chemistry Instruction. Computers in Human Behavior, 29(6), 2546–2556. https://doi.org/10.1016/j.chb.2013.06.012Stull, A. T., Hegarty, M., Dixon, B., & Stieff, M. (2012). Representational Translation With Concrete Models in Organic Chemistry. Cognition and Instruction, 30(4), 404–434. https://doi.org/10.1080/07370008.2012.719956Thayban, T., Habiddin, H., & Utomo, Y. (2020). Concrete Model VS Virtual Model: Roles and Implications in Chemistry Learning. J-PEK (Jurnal Pembelajaran Kimia), 5(2), 90–107. https://doi.org/10.17977/UM026V5I22020P090Thayban, T., Habiddin, H., Utomo, Y., & Muarifin, M. (2021). Understanding of Symmetry: Measuring the Contribution of Virtual and Concrete Models for Students with Different Spatial Abilities. Acta Chimica Slovenica, 68(3). https://doi.org/10.17344/acsi.2021.683
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
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