1,721,018 research outputs found
Penerapan Problem Based Learning (PBL) dengan Pemberian Biografi Ilmuwan Pada Mata Kuliah Fisika Dasar I: Dampak Sikap Ilmiah dan Motivasi belajar
Full text linkThe application of PBL along with the biographies of scientists in learning physics is expected to have an impact on scientific attitudes and student motivation to learn. The objectives of this study were: (1) To find out the improvement of students' scientific attitude after PBL was applied by giving scientists biographies in Basic Physics I course; (2) To find out the increase in students' learning motivation after PBL by applying the biographies of scientists in the Basic Physics I course. This study used a quantitative approach with descriptive research type. The data collection technique used a questionnaire for scientific attitudes and learning motivation. The results showed: (1) There was an increase in the ability of scientific attitudes by applying PBL by giving scientists biographies in the Basic Physics I course in the medium category with an N-gain value of 0.523 and (2) There was an increase in learning motivation by applying
Analisis Spektrum Energi dan Fungsi Gelombang Persamaan Schrodinger Untuk Potensial Non-Sentral Shape Invariance q-deformasi Menggunakan Metode Nikiforof-Uvarov
Full text linkThe purposes of the research were to determine the energy spectrum and
wave function of some q-deformed non-central shape invariance potentials,
Modified Poschl-Teller plus Scarf potential and Rosen-Morse plus Rosen-Morse
potential using Nikiforov-Uvarov Method.
The research was a literature study to solve Schrödinger equation for qdeformed
Modified Poschl-Teller plus Scarf potential and Rosen-Morse plus
Rosen-Morse potential analytically. The energy spectrum and the wave functions
of a system particles can be determined by Schrodinger equation. The energy
spectrum and wave function for q-deformed non-central potential determined by
Nikiforov-Uvarov method. Generally, the Schrodinger equation for the noncentral
potential can be solved by exact if the potential variables separated into
the radial and angular part. The energy spectrum and the radial wave function
obtained approximately due to the centrifugal term from the radial Schrodinger
equation, while the angular wave function and the orbital quantum number are
obtained from angular part of Schrodinger equation.
Key words: The Energy Spectrum, Wave Function, Schrödinger Equation, Non-
Central, q-deformed, Nikiforov-Uvarov Method
Pembelajaran Fisika menggunakan Media Animasi Macromedia Flash-MX dan Gambar untuk Meningkatkan Pemahaman Konsep Mahasiswa
Full text linkThe objectives of the study are: (1) to measure the improvement of the conceptual understanding of the students by using Animated Macromedia Flash – MX and Picture in Quantum Physics Subject; (2) to describe the respond of students after using Animated Macromedia Flash – MX and Picture in Quantum Physics Subject. The result of the Study shows that: (1) The Pretest score of understanding before using Animated Macromedia Flash – MX and Picture is 33,02, which is not significantly different than post-test score 46,25, The gain score achieved is 13,23, the N-gain score achieved is 0,19 with low category. There is an improvement of teaching learning Quantum Physics subject using Animated Macromedia Flash – MX and Picture with low category; (2) the students’ response toward teaching and learning of Quantum Physics subject using Animated Macromedia Flash – MX and Picture are positive (100 %), the students consider the media as something new and beneficial (100 %), the students’ response towards Lembar Kerja Mahasiswa (LKM) application of Schrodinger equation for simple potential system are considered difficult (85%) and the students’ response towards the questions of Schrodinger equation for simple potential system are still considered difficult (90%).
Penelitian ini bertujuan: (1) untuk mengetahui peningkatan pemahaman konsep mahasiswa dengan menggunakan Media Animasi Macromedia Flash – MX dan Gambar pada mata kuliah Fisika Kuantum; (2) Untuk mengetahui respon mahasiswa setelah diterapkan Media Animasi Macromedia Flash – MX dan Gambar pada mata kuliah Fisika Kuantum. Hasil penelitian menunjukkan bahwa: (1) Nilai pretest pemahaman sebelum dilaksanakan pembelajaran oleh peneliti sebesar (33,02) tidak jauh berbeda dengan nilai pada post test (46,25), nilai gain yang diperoleh sebesar (13,23), nilai N-gain yang diperoleh (0,19) dengan kategori rendah. Terdapat peningkatan pembelajaran fisika kuantum dengan menggunakan Media Animasi Macromedia Flash – MX dan Gambar pada mata kuliah Fisika Kuantum dengan kategori rendah; (2) Respon mahasiswa terhadap pembelajaran fisika kuantum dengan menggunakan Media Animasi Macromedia Flash – MX dan Gambar pada mata kuliah Fisika Kuantum pada umumnya siswa menyatakan senang (100 %), siswa merasa baru (100 %), dan siswa merasa bermanfaat (100 %), Respon untuk perasaan mahasiswa terhadap Lembar Kerja Mahasiswa (LKM) aplikasi persamaan Schrodinger untuk sistem potensial sederhana umumnya menyatakan sulit (85%) dan respon mahasiswa untuk soal-soal aplikasi persamaan Schrodinger untuk sistem potensial sederhana dianggap masih sulit (90%)
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
KORELASI MODEL PEMBELAJARAN LEARNING CYCLE TERHADAP MOTIVASI DAN KETERAMPILAN PROSES SAINS PADA MATERI POKOK CAHAYA
Full text linkPenelitian ini bertujuan untuk mengetahui: (1) Terdapat tidaknya hubungan yang signifikan antara motivasi dan hasil belajar kognitif, (2) Terdapat tidaknya hubungan yang signifikan antara keterampilan proses sains terhadap hasil belajar kognitif, (3) Terdapat tidaknya hubungan yang signifikan antara motivasi terhadap keterampilan proses sains, (4) Terdapat tidaknya hubungan yang signifikan antara motivasi dan keterampilan proses sains secara bersama-sama terhadap hasil belajar kognitif. Penelitian ini menggunakan pendekatan kuantitatif menggunakan jenis penelitian deskriptif dengan jenis korelasional. Populasi penelitian adalah kelas VIII SMPN 1 Palangka Raya tahun ajaran 2013/2014, dan sampel penelitian adalah kelas VIII-6 yang dipilih secara purposive sampling. Instrumen yang digunakan adalah lembar pengelolaan pembelajaran, angket motivasi belajar siswa, tes keterampilan proses sains dan tes hasil belajar kognitif siswa. Analisis data menggunakan program Microsoft excel dan SPSS versi 17.0 for windows. Hasil penelitian menunjukan bahwa: (1) Terdapat hubungan yang signifikan antara motivasi terhadap terhadap hasil belajar dengan koefisien korelasi sebesar 0,016 dalam kategori sangat rendah (2) Terdapat hubungan yang signifikan antara"> keterampilan proses sains terhadap hasil belajar dengan koefisien korelasi sebesar 0,491 dalam kategori sedang (3) Terdapat hubungan negatif yang signifikan antara motivasi terhadap keterampilan proses sains dengan koefisien korelasi sebesar - 0,119 dalam kategori sangat rendah (4) Terdapat hubungan yang signifikan antara motivasi dan keterampilan proses sains secara bersam
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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