1,720,958 research outputs found
Developing Algebra Structure Module and Model of Cooperative Learning Helping Concept Map Media for Improving Proofing Ability
No full textThis research was purposed to develop module and learning model and instrument of proofing ability in algebra structure through cooperative learning with helping map concept media for students’ of mathematic major and mathematics education in State University and Private University in North Sumatra province. The subject of this research was the students’ of mathematic and mathematics education in Medan State University and Qualitye University. Developmental Research that oriented on developing product at stage and first year was done identification of proofing and positive behavior on algebra structure based on curriculum and was developed module and model cooperative learning with helping concept media map. The result that got at the first stage was the formula of proofing ability and positive behavior on algebra structure with first module and model cooperative learning assisting concept media map that assumed effective, efficient in algebra structure. Module and model of this learning consist of the book of lecturing guiding (lecturing unity schedule, lecturing contract, and lesson plan), module, and book of students’ assignment.</jats:p
Model Optimisasi Terintegrasi untuk Memprediksi Kualitas Air Sungai
No full textThis study examine the development of integrated models to predict the water quality of the river. Water quality is determined by the concentration of pollutants in the water flow. The model was developed by taking into account the interaction between the two types of pollutants found in the water flow, namely nitrogen and, phosphorus. Pollutants from nitrogen derivatives consist of organic nitrogen, ammonia, nitrite and nitrate. While the phosphorus derivatives are organic phosphorus and dissolved phosphorus.
The model obtained, is a system of differential equations that describe the
interaction between nitrogen and phosphorus. From the obtained model, we can
predict concentrations of pollutants at any time. From the analysis of the
to be obtained that concentrations of pollutants at any time strongly influenced
the waste organic phosphorus in the watershed.67 HalamanDisertasi Dokto
PERILAKU SOLUSI PERSAMAAN DIFERENSIAL LOGISTIK DENGAN PEMBERIAN DELAY
Get PDFBanyak fenomena dalam kehidupan dapat dianalisis dengan menggunakan pemodelan matematika. Terdapat beberapa macam model pertumbuhan populasi yang kontinu diantarnya model populasi eksponensial dan model populasi logistik. Model populasi logistik merupakan model pertumbuhan yang memperhitungkan faktor logistik berupa ketersediaan makanan dan ruang hidup. Penelitian ini membahas perilaku solusi persamaan diferensial logistik dengan waktu delay. Metode penelitian yang digunakan dalam penulisan ini adalah penelitian deskriptif dan kepustakaan. Dengan mengamati hasil simulasi numerik dari solusi persamaan diferensial logistik dengan delay dan persamaan logistik tanpa delay. Hasil pengamatan menunjukkan bahwa fungsi dan interval delay yang diberikan berpengaruh terhadap perilaku solusi persamaan logistik. Panjang interval delay yang relatif besar menyebabkan solusinya tidak memiliki titik kesetimbangan. Namun untuk interval delay yang relatif kecil tetap menuju titik kesetimbangan y = 1 dengan cara berfluktuas
The Differences of Student Learning Result by Using Cooperative Learning Model of Team Games Tournament Type and Conventional Learning Model
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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
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