1,720,970 research outputs found
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
REMEDIASI KEMAMPUAN SISWA MENGGUNAKAN SYSTEMATIC APPROACH TO PROBLEM SOLVING PADA MATERI DINAMIKA ROTASI
Full text linkAbstractThis study was quasi experimental design with nonequivalent control group design. The effectiveness of systematic approach to problem solving in improving students’ ability to solve the rotational dynamics problem in SMAN 2 Pontianak was investigated. 120 students selected used intact group and randomly, obtained 30 students in XI MIA 3 class as the experimental group was taught by using systematic approach to problem solving and 30 students in XI MIA 2 class as the control group was taught by using formal education method. Essay test questions about rotational dynamics were used for data collection. The results of study reveal the average score of experimental group increased from 32.5 to 68.1 and in control group increased from 35 to 54. T–test was used on this study with the significance of 5%. There were significant differences in problem solving abilities after being remediated using a systematic approach. There are also significant difference between experimental and control groups students’ posttest scores. Systematic approach to problem solving can effectively improve students' ability to solve problems with effect size of 3.04. This study is expected to be used as an alternative learning for students who have difficulty in solving problems especially in physics. Keyword: Systematic approach to problem solving, Students’ Ability, Rotational Dynamic
PEMBERIAN KOREKSIAN JAWABAN DISERTAI PENJELASAN UNTUK MEREMEDIASI KESALAHAN PESERTA DIDIK PADA HUKUM NEWTON TENTANG GRAVITASI DI SMA
Full text linkAbstractThis research aims to determine the effectiveness of giving feedback in the form of answer sheet correction accompanied by teacher’s explanation to remedy the students’ mistakes in working on the material Newton's law of gravity in SMA Negeri 9 Pontianak. The research method used is Pre-Experimental design with one-group pretest and posttest design. Sampling was done by random sampling with intact group technique which the sample is 33 students of XI MIA 3. The tool of data is in the form of essays consists of 4 questions. The result shows that the largest students’ mistake in the pre-test is on writing formula and calculating which 125 errors. After doing remediation and post-test activities become 36 and 45 errors. However the smallest mistake is writing known and asked which 106 errors. After doing remediation and post-test activities become 30 errors. The number of average decrease in students’ mistake on the material Newton's law of gravity after given remediation by giving feedback in the form of answer sheet correction with teacher's explanation is 69.5%.Providing feedback in the form of answer sheet correction accompanied by teacher’s explanation is effective to remedy the students’ mistake with proportion 0.69 which is moderate. Giving feedback in the form of answer sheet correction accompanied by teacher’s explanations can be used as an alternative way in remediating students’ mistake on the material Newton's law of gravity. Keywords: Answer sheet Correction, Newton's Law, Mistakes
REMEDIASI MISKONSEPSI MENGGUNAKAN MODEL FLIPPED CLASSROOM MATERI IMPULS DAN MOMENTUM DI SMA
Full text linkAbstractThis research aimed to remediate student’s misconceptions used Flipped Classroom model on Impulse and Momentum subject in Senior High School 7 Pontianak. This research used experiment method with pre-experimental design form and used Nonequivalent Control Group design. This sample used Nonprobability sampling technique, in which the outcome was class of XMIA 4 and XMIA 5 with total 64 students. The instrument of this research was a diagnostic test consist of 12 multiple choice questions with open reasoning. Based on the data analysis, the average percentage of student's misconception decreased from 86% to 30.5% after implemented Flipped Classroom model. The Two Proportion statistic test result with Zformula > Ztable (4.00 > 1.96) this result showed there was a significant difference between the two class. It showed that Flipped Classroom be able to decreased student’s misconception. The researcher hopes this model will be used as an alternative teaching physics remediation to student's misconceptions. Keywords: Flipped Classroom, Impulse and Momentum, Misconceptions, Remediation,
KARAKTERISASI IMPEDANSI LAPISAN TIPIS ZnS:Mn YANG DIBUAT DENGAN CO-EVAPORASI ZnS DAN Mn
Full text linkThe aim of this research is to characterize impedance, capasitance and relative permitivity of the characteristics of electric thin film ZnS and ZnS:Mn. This research was started from making thin film with different deposition speed and with thermal co-evaporation method in vakum tubes. The estimation is the characteristics of thin film ZnS impedance and ZnS:Mn was done outside this vacum with various frequency between thousaund to million hertzs, with different deposition speed and the same thickness. Defining impedance of ZnS thin film wich the most optimal frequency would influence capasitance and relative permittivity of the thin film on the characteristics of the electricity. Besides, capasitance and resitance values of ZnS:Mn thin film would change if given different Mn portion on that thin film. From the result of the research, it could be identified as follows. On the area of the thousand to ten thousand Hertz, it was know is that relative permitivity/constante static dielectrics K(0) ZnS:Mn thin film was not the frequency function that it could be regarded as constant like K(o) = 10. The price of capasitance ZnS:Mn was increasing with less Mn amount in that thin film. The price of ZnS:Mn electric resitance is reduced with less Mn amount on that thin film. Key words: Impedance, thin film ZnS:Mn, co-evaporation
IMPLEMENTASI MODEL PEMBELAJARAN SAVI TERHADAP HASIL BELAJAR DAN MOTIVASI BELAJAR PESERTA DIDIK PADA MATERI GERAK HARMONIK SEDERHANA
Full text linkPenelitian ini bertujuan untuk mengetahui hasil dan motivasi belajar pada materi gerak harmonik sederhana setelah implementasi model pembelajaran somatis, auditori, visualisasi, dan intelektual (SAVI) di MAN 1 Pontianak. Penelitian dilaksanakan dengan metode eksperimen dengan dua perlakuan yaitu penerapan model pembelajaran SAVI (eksperimen 1) dan model pembelajaran ekspositori (eksperimen 2). Variabel yang diukur yaitu hasil belajar dan motivasi belajar. Ada 10 soal pilihan ganda untuk hasil belajar dan 40 butir pertanyaan di lembar angket motivasi belajar yang diberikan kepada setiap peserta didik yang dijadikan sampel dari masing-masing kelas. Data dianalisis dengan independent sample t-test yang dibantu dengan program IBM SPSS Statistic 27. Hasil penelitian menunjukkan bahwa model pembelajaran SAVI secara signifikan mempengaruhi hasil belajar dengan efektivitas sedang. Selain itu, diketahui model pembelajaran SAVI lebih berpengaruh secara positif terhadap hasil belajar peserta didik pada materi yang memiliki tingkat kesulitan tinggi. Motivasi belajar peserta didik pada model pembelajaran SAVI secara signifikan lebih besar dibanding pada model pembelajaran ekspositor
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
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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