1,720,966 research outputs found
Analisis Kestabilan Model Predator Prey pada Tanaman Bambu dan Giant Panda
Full text linkModel Predator Prey merupakan suatu model yang menjelaskan interaksi antara dua atau lebih spesies yang terdiri dari mangsa dan pemangsa. Penelitian ini bertujuan untuk menganalisis model predator prey pada tanaman bambu dan giant panda. Metode yang digunakan adalah metode studi literatur untuk konstruksi model, penentuan titik kesetimbangan, dan menganalisis kestabilan. Hasil penelitian menunjukkan dua titik kesetimbangan yaitu(-N/a , 0) dan (c/d , (ac+Nd)/bc). Titik kesetimbangan pertama tidak dianalisis sebab tidak relevan dengan kondisi dunia nyata di mana populasi bernilai negatif. Dari hasil analisis terhadap titik kesetimbangan kedua, diperoleh bahwa titik kesetimbangan tersebut stabil. Upaya penanaman bambu secara konstan tidak berpengaruh secara signifikan terhadap kestabilan titik kesetimbangan
An SEQIJR Epidemic Model: Determination of the Basic Reproduction Number and Numerical Simulation of Disease Dynamics
Full text linkThe aim of this study is to construct an SEQIJR model for infectious disease transmission, determine its basic reproduction number, and perform numerical simulations to analyze the model’s dynamics. The model incorporates quarantine and isolation as explicit compartments, while the basic reproduction number is derived using the next generation matrix method. Numerical simulations are carried out using hypothetical initial conditions and parameter values chosen to be consistent with the fundamental assumptions of the model. The analysis yields an explicit expression for the basic reproduction number. The simulation results provide insights into the temporal progression of the disease and show that the latent compartment exhibits a rapid increase during the early stages of the outbreak. These findings highlight the role of quarantine and isolation in influencing disease dynamics, and the resulting model can serve as a reference for early prevention strategies in managing infectious disease transmission
ETNOMATEMATIKA: MAKANAN TRADISIONAL BUGIS SEBAGAI SUMBER BELAJAR MATEMATIKA
Full text linkAbstrak:Penelitian ini bertujuan untuk menggambarkan hubungan antara matematika dan budaya, khususnya pada kebudayaan masyarakat Bugis. Fokus penelitian ini adalah eksplorasi etnomatematika pada makanan tradisional Bugis yang dapat dimanfaatkan sebagai sumber belajar matematika. Penelitian ini merupakan penelitian kualitatif dengan pendekatan etnografi. Instrumen yang digunakan dalam penelitian ini adalah human instrument, di mana peneliti berhubungan langsung dengan penelitian dan berperan sebagai pengumpul data. Teknik pengumpulan data dilakukan melalui observasi, wawancara, dan dokumentasi. Berdasarkan hasil pengumpulan data penelitian diperoleh beberapa makanan tradisional Bugis, yaitu barongko, onde-onde, doko-doko, paso, tumpi-tumpi, jompo-jompo, burasa’, dan putu coppa. Hasil penelitian ini menunjukkan bahwa makanan tradisional Bugis tersebut mengandung konsep matematika yaitu geometri khususnya bangun datar dan bangun ruang. Tumpi-tumpi, jompo-jompo, dan burasa’ mengandung konsep bangun datar, sedangkan barongko, onde-onde, doko-doko, paso, dan putu coppa mengandung konsep bangun ruang. Makanan tradisional Bugis tersebut dapat digunakan sebagai sumber belajar matematika di sekolah khususnya sekolah dasar dan sekolah menengah. Dengan demikian, pembelajaran matematika akan lebih bermakna karena sumber belajarnya berasal dari lingkungan budaya mereka sendiri.Abstract:This research aimed to describe the correlation between mathematics and culture, especially in Buginese society. This research was focused on ethnomathematics exploration of Buginese Traditional Food that could be used as mathematics learning resource. This research was a qualitative research with ethnography approach. The research instruments were the researcher who related directly to research and acts as the data collector, observation sheet, and interview. Data collection procedures were carried out through observation, interview, and documentation. Based on data collection, the findings showed that several Buginese traditional foods, such as barongko, onde-onde, doko-doko, paso, tumpi-tumpi, jompo-jompo, burasa’, and putu coppa had mathematics concept of geometry especially plane figure and solid figure. Tumpi-Tumpi, Jompo-Jompo, and Burasa have plane figure concept, while barongko, onde-onde, doko-doko, paso, and putu coppa have solid figure concepts. Those traditional foods could be used as mathematics learning resource for students at elementary or secondary school. Therefore, learning mathematics would be more meaningful because the learning resources base on the students’ cultural environment
S-GEAR: A FRAMEWORK FOR PROOF INVESTIGATION AND RECONSTRUCTION IN REAL ANALYSIS
Full text linkStudents in the Mathematics Education Department at IAIN Parepare face substantial challenges in understanding and constructing proofs in Real Analysis due to limited familiarity with proof models, deductive principles, and the formal structures that underpin mathematical arguments. The absence of supporting courses such as Mathematical Logic further restricts their ability to read proof structures and interpret essential symbolic forms, including definitions involving ε–δ. This study developed the S-GeaR (Starting Point, Goals, Idea, References) strategy as a proof-investigation framework designed to guide students in systematically analyzing and reconstructing theorem proofs. Using the ADDIE development model, S-GeaR was designed, validated, and implemented through theorem investigation, collaborative discussions, and structured proof worksheets. Data were collected through tests, classroom observations, and student reflections. Quantitative results show an increase in scores from 58.2 to 76.4. Through the use of S-GeaR worksheets, students demonstrated gradual development in proof-related activities: recognizing proof methods, generating ideas and composing a complete formal proof. Qualitative findings also indicate that the procedural guidance of S-GeaR reduces cognitive load through component mapping and supports the emergence of proof ideas. These results underscore the important role of S-GeaR in strengthening students’ reasoning structure in theorems proofs
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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