1,720,990 research outputs found
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
Thunderstorm Algorithm for Determining Unit Commitment in Power System Operation
No full textSolving the unit commitment problem is an important task in power system operation for deciding a balanced power production between various types of generating units under technical constraints and environmental limitations. This paper presents a new intelligent computation method, called the Thunderstorm Algorithm (TA), for searching the optimal solution of the integrated economic and emission dispatch (IEED) problem as the operational assessment for determining unit commitment. A simulation using the IEEE-62 bus system showed that TA has smooth convergence and is applicable for solving the IEED problem. The IEED's solution is associated with the total fuel consumption and pollutant emission. The proposed TA method seems to be a viable new approach for finding the optimal solution of the IEED problem
PENGARUH PENDEKATAN REALISTIC MATHEMATICS EDUCATION TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA
No full textThis study aims to determine whether there is an effect of the Realistic Mathematics Education (RME) approach on students' mathematical problem solving abilities on the subject of social arithmetic for class VII MTs Al-Ihsan. This study uses an experimental design research method with a posttest only control design. The data collection technique used an essay test with 5 questions, analyzed using Microsoft Excel data analyst. From the data that has been analyzed, it is obtained that the average of the experimental group is 81,750, while the average value of the control group is 76,417. Hypothesis analysis in this study using a t-test with a significant level of 5% (0.05) the results obtained = 4.359 and = 2.013, then > . The results of the analysis prove that there is a significant effect of the application of the Realistic Mathematics Education (RME) approach on the mathematical problem solving abilities of seventh grade students of MTs Al-Ihsan
ANALISIS KESALAHAN DAN SCAFFOLDING DALAM PENYELESAIAN PERSAMAAN DIFERENSIAL
No full textTujuan dari penelitian ini adalah mendeskripsikan hasil analisis kesalahan dan scaffolding yang diterapkan dalam memperbaiki kesalahan matematika mahasiswa ketika menyelesaikan persamaan diferensial. Jenis penelitian merupakan penelitian kualitatif deskriptif. Subyek penelitian adalah mahasiswa program studi Pendidikan Matematika IKIP Budi Utomo Malang yang menempuh matakuliah Persamaan Diferensial. Hasil analisis kesalahan menunjukkan bahwa kesalahan yang muncul dalam menyelesaikan persamaan diferensial adalah kesalahan konseptual, prosedural dan faktual. Secara umum, penyebab kesalahan adalah karena mahasiswa tidak mengoptimalkan pengetahuan awal yang sudah dimiliki terkait konsep turunan dan integral dan mahasiswa belum sepenuhnya memahami konsep dan prosedur dalam penyelesaian persamaan diferensial. Selain itu, mahasiswa juga sering menyelesaikan persamaan diferensial dengan hanya melihat dan meniru contoh yang sudah diberikan. Perbaikan kesalahan dilakukan melalui penerapan scaffolding yang merupakan variasi dari pemberian petunjuk, handout dan penjelasan pada mahasiswa. Variasi penerapan scaffolding juga didampingi dengan pemberian umpan balik dan motivasi terhadap mahasiswa. Variasi penerapan scaffolding ditujukan agar mengoptimalkan kemampuan mahasiswa dalam menyelesaikan persamaan diferensial. Mahasiswa juga lebih mandiri dan terlibat aktif dalam pembelajaran. Jadi, selain mampu memperbaiki kesalahannya mahasiswa juga memperoleh pemahaman yang lebih mendalam terkait penyelesaian persamaan diferensial sekaligus meningkatkan sikap dan performanya dalam pembelajaran
Penyusunan Tes Matematika Berbasis High Order Thinking Skills
No full textThe purpose of this research is to provide a description of the preparation of mathematics tests based on high order thinking skills (HOTS). The method used is the library study research method. Mathematics is a necessary science in various areas of human life. In math learning, students should have higher thinking skills with critical and cretaive ways of thinking in solving problems. High-level thinking abilities can be trained using the new version of Bloom taxonomy which includes C4 (analyzing), C5 (evaluating), and C6 (creating). In mathematics hots tests need to pay attention to curriculum studies, question grids, question card, and scoring guidelines
Persepsi Mahasiswa terhadap 4K dalam Pembelajaran Matematika
No full textPenelitian ini dilakukan untuk mengetahui persepsi mahasiswa tentang pentingnya 4K (Kritis, Kreatif, Komunikatif, dan Kolaboratif) dalam pembelajaran matematika. Pendekatan penelitian ini adalah penelitian kuantitatif dan kualitatif. Berdasarkan hasil penelitian diperoleh informasi bahwa sebagian besar responden memilih tanggapan setuju dengan persentase rata-rata 57% untuk komponen kritis, sebagian besar responden memilih tanggapan setuju dengan persentase rata-rata 59% untuk komponen kreatif, sebagian besar responden memilih tanggapan setuju dengan persentase rata-rata 51% untuk komponen komunikatif, dan responden memilih tanggapan setuju dengan persentase rata-rata 49% serta tanggapan sangat setuju dengan persentase rata-rata 49% untuk komponen kolaboratif. Dengan demikian, sebagian besar mahasiswa merasa bahwa 4K penting dalam pembelajaran matematika. Berdasarkan hasil penelitian, para pengajar matematika disarankan untuk menerapkan pembelajaran berbasis 4K
Analisis kemampuan berpikir kreatif dan analitik dalam memecahkan masalah perbandingan
No full textPendidikan matematika di sekolah bertujuan tidak hanya untuk mengajarkan rumus, tetapi juga untuk mengembangkan keterampilan berpikir tingkat tinggi, seperti berpikir kreatif dan analitik. Keterampilan ini sangat penting dalam memecahkan masalah matematika, khususnya pada materi perbandingan yang diajarkan di kelas VII Sekolah Menengah Pertama (SMP). Penelitian ini bertujuan untuk menganalisis sejauh mana peserta didik dapat mengaplikasikan kemampuan berpikir kreatif dan analitik dalam menyelesaikan soal-soal perbandingan. Dengan menggunakan pendekatan deskriptif kualitatif, penelitian ini melibatkan tiga peserta didik kelas VII SMP yang dipilih berdasarkan kemampuan matematika menengah hingga tinggi. Data dikumpulkan melalui tes tertulis, wawancara semi-terstruktur, dan dokumentasi hasil kerja siswa. Hasil penelitian menunjukkan bahwa masing-masing peserta didik menunjukkan kemampuan berpikir analitik dan kreatif yang berbeda dalam menyelesaikan masalah perbandingan. Penelitian ini menekankan pentingnya pengembangan kedua keterampilan tersebut dalam pembelajaran matematika di sekolah
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