1,720,956 research outputs found
Analisis Kesalahan Operasi dan Kesalahan Prinsip Mahasiswa dalam Menyelesaikan Soal Geometri Analitik Ruang
No full textAbstrak: Studi ini ditujukan untuk menggambarkan kesalahan operasi dan kesalahan prinsip mahasiswa dalam menyelesaikan soal-soal geometri analitik ruang. Subjek dari penelitian ini terdiri dari dua mahasiswa Jurusan Matematika Universitas Negeri Makassar. Setiap kesalahan diwakili dengan satu mahasiswa sebagai subjek penelitian. Pengumpulan data dilakukan dengan menggunakan tes dan wawancara mendalam. Instrumen penelitian ini adalah pedoman wawancara dan peneliti. Data dianalisis secara kualitatif, dengan menggunakan tiga tahapan analisis: reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian ini adalah (1) subjek untuk kesalahan operasi salah dalam pengoperasian aritmatika bentuk aljabar yaitu subjek lupa mengoperasikan sebagian dari bilangan atau variabel; dan (2) subjek untuk kesalahan prinsip menganggap bahwa vektor normal setiap bidang sisi tegak prisma saling tegak lurus.
Abstract: This study aims to describe both operation and principle errors of students in solving space analytic geometry problems. The subjects of this research are two students of Mathematics Department of Universitas Negeri Makassar. Each of error (operation and principle errors) is represented by a student. The collecting data were employed by using a tests and a depth-interview. Instruments of this research are Interview guidelines and researcher. Data were qualitatively analyzed, using three stages of analysis: data reduction, data display and concluding. The results of this research are (1) the subject of operation error made mistakes in operating of algebra forms such as forgetting to operate a part of number or variable (2) the subjects of principle error assume that the normal vectors of each side of prisme are perpendicular.</jats:p
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
Teorema Titik Tetap untuk Pemetaan Bernilai Himpunan pada Subset dari Ruang b-Metrik
Get PDFAbstrak. Tulisan ini membahas tentang teorema titik tetap untuk pemetaan bernilai himpuanan dengan domain berupa subset dari suatu ruang b-metrik. Hasil yang diperoleh merupakan pengembangan dari hasil yang telah diperoleh pada literatur terdahulu.
Kata kunci: b-metrik, pemetaan bernilai himpuan, teorema titik tetap.
Abstract. This paper study about fixed point theorem for set-valued maps where its domain is subset of a b-metric space. The result is improvement from the literature.
Keywords: b-metric, set-valued maps, fixed point theorem
PENDEKATAN FAKTORIAL PADA BIDANG RIIL
Get PDFArtikel ini adalah studi literatur tentang mendefinisikan faktorial dalam domain nyata. Tujuan penelitian ini adalah untuk menurunkan rumus aproksimasi faktorial yang dinyatakan sebagai dengan menggunakan pendekatan analitis. Makalah ini diawali dengan asumsi bahwa rumus faktorial rekursif tetap berlaku pada domain riil, kemudian digunakan untuk mengkonstruksi rumus aproksimasi . Selanjutnya, makalah ini juga mengaitkan hasil dari bentuk aproksimasi faktorial dengan representasi integral yang relevan, seperti fungsi gamma.Makalah ini adalah studi literatur tentang mendefinisikan faktorial dalam domain nyata. Tujuan penelitian ini adalah untuk menurunkan rumus aproksimasi faktorial yang dinyatakan sebagai x! dengan menggunakan pendekatan analitis. Makalah ini diawali dengan asumsi bahwa rumus faktorial rekursif tetap berlaku pada domain riil, kemudian digunakan untuk mengkonstruksi rumus aproksimasi x!. Selanjutnya, makalah ini juga mengaitkan hasil dari bentuk aproksimasi faktorial dengan representasi integral yang relevan, seperti fungsi gamma
Komutator Operator Calderón-Zygmund Diperumum tipe-Teta pada Ruang Morrey Berbobot Diperumum: Komutator pada Ruang Morrey Berbobot Diperumum
No full textIn this paper, we conduct a comprehensive study on the boundedness properties of commutators generated by a BMO function and generalized Calderón-Zygmund operator. Specifically, we analyze their mapping behavior from a generalized weighted Morrey space to another generalized weighted Morrey spaces under some conditions on the parameters. Our main objective is to establish novel and refined conditions on the pair of parameter functions that guarantee the boundedness of these commutators on the spaces. The findings presented in this work contribute to a deeper understanding of the interplay between function spaces, weight conditions, and the structure of commutators in harmonic analysis
- …
