1,721,215 research outputs found
Premiums on Convertible Bonds with Market Conditions
Full text linkAdi S. Karna is Professor of Business at lndiana/Purdue University at Fort Wayne
Evaluation of Mutual Fund Performance and Risk Levels Under Different Market Conditions, 1972-81
Full text linkAdi S. Karna is Professor of Finance in the Department of Management and Finance at Southeastern Louisiana University
Comparing Cognitive Learning Outcomes as the Impact of ADI-S and ADI Learning Models with Different Scientific Reasoning Abilities
No full textAbstract: This aims of the study to compare the cognitive learning outcomes of students who learned with Argument Driven Inquiry-Scaffolding (ADI-S) and Driven Argument Inquiry (ADI) with different scientific reasoning abilities. This research is a quasy experimental design. The instruments were used cognitive learning outcomes test and the test of scientific reasoning abilities. Data were analyzed using two way ANCOVA (2x2 factorial). The results showed: (1) learned with ADI-S on the reaction rate material get cognitive learning outcomes higher than learned with ADI, (2) student with high scientific reasoning abilities have better cognitive learning outcomes rather student with low scientific reasoning abilities both in ADI-S’s class and ADI’s class.
Key Words: ADI; ADI-S; scientific reasoning abilities; cognitive learning outcomes
Abstrak: Penelitian ini bertujuan untuk mengetahui perbedaan hasil belajar kognitif siswa yang dibelajarkan menggunakan model Argument Driven Inquiry-Scaffolding (ADI-S) dan model Argument-Driven Inquiry (ADI) dengan kemampuan penalaran ilmiah berbeda. Rancangan penelitian yang digunakan adalah quasy eksperimental design. Instrumen yang digunakan yaitu tes hasil belajar kognitif dan tes kemampuan penalaran ilmiah. Data dianalisis menggunakan ANCOVA dua jalur (faktorial 2x2). Hasil analisis menunjukkan: (1) pembelajaran dengan model ADI-S pada materi laju reaksi memberikan hasil belajar kognitif yang lebih tinggi jika dibandingkan dengan model ADI, (2) siswa dengan kemampuan penalaran ilmiah tinggi memberikan hasil belajar kognitif lebih tinggi dibandingkan kemampuan penalaran ilmiah rendah baik pada kelas ADI-S maupun ADI.
Kata kunci: ADI; ADI-S; kemampuan penalaran ilmiah; hasil belajar kogniti
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
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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