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JTAM (Jurnal Teori dan Aplikasi Matematika)
ISSN 2597-7512 · Universitas Muhammadiyah Mataram · 589 artikel di indeks
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Artikel Jurnal
Bridging Cultural Contexts and Digital Innovation in Mathematics Learning: A Meta-Analytic of Augmented Reality Supported Ethnomathematics
The integration of cultural perspectives into Mathematics Education has expanded significantly alongside the rapid development of Augmented Reality (AR). While prior reviews have separately examined digital innovation in mathematics learning or the role of ethnomathematics in culturally responsive…
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Artikel Jurnal
Forecasting Rupiah Exchange Rate Volatility using a Hybrid ARIMA–SVR Model as an Early Warning System to Address Global Dynamics
Exchange rate volatility of the Indonesian Rupiah against the US Dollar has increased due to global uncertainty. This study addresses the limitation of prior research that predominantly relies on single linear or nonlinear models in emerging markets by developing a Hybrid ARIMA SVR approach…
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Artikel Jurnal
Innovation in Numeracy Learning Through Immersive Media for Pre-Service Teachers in Professional Education
This research presents an innovative approach to numeracy instruction for pre-service elementary school teachers using holographic images. The primary contribution is the integration of low-cost, mobile-based holographic prototyping within teacher education to enhance spatial reasoning, foster…
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Artikel Jurnal
A Mathematical Model of Wasting–Stunting Dynamics with Age-Dependent Nutritional Recovery in Children under Five
Childhood wasting and stunting remain major public health challenges, yet their long-term interaction at the population level remains insufficiently understood. This study develops a deterministic compartmental model to investigate wasting–stunting dynamics among children under five years of age in…
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Artikel Jurnal
Comparison of Mack Chain-Ladder and Bootstrap Methods for Claim Reserve Estimation under IFRS 17 in Lampung General Insurance
Claim reserves are funds set aside by insurance companies to pay for reported claims (RBNS) as well as claims that have not yet been reported (IBNR), and they are crucial because they directly affect the financial health of the company. In 2024, there were customer complaints in Lampung regarding…
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Artikel Jurnal
Forecasting Rice Prices in Indonesia Using a Hybrid HWES-MLP Time Series Prediction Model
Rice is the main staple food for the majority of the Indonesian population. However, the fluctuation in rice prices and future uncertainty emphasize the importance of forecasting rice prices, thus requiring a forecasting model capable of providing accurate predictions. Various previous forecasting…
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Artikel Jurnal
Mathematical Model of Joint Life Term Insurance Premiums under Inflation, Interest Rate, and Dependent Mortality
Multilife insurance refers to a contract that covers two or more lives simultaneously, with joint life insurance representing a key form in which the benefit is paid upon the first death among the insured individuals. The lifetimes of insured individuals are typically not independent, as they may…
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Artikel Jurnal
Assessment of Dietary Intervention Effects on Food Intake in Mus musculus using Repeated Measures ANOVA
The prevalence of type 2 diabetes, metabolic syndrome, along with obesity that causes disturbances in the body's metabolic processes are the main triggers of chronic liver disease or in scientific language called Non-Alcoholic Fatty Liver Disease (NAFLD), getting out of control. This makes managing…
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Artikel Jurnal
Combined Truncated Spline and Fourier series in Nonparametric Biresponse Regression: A Case of Agricultural Productivity
Agriculture plays a strategic role in supporting economic development and food security in Indonesia, particularly in South Sulawesi, one of the country’s primary rice-producing regions. Existing studies on agricultural productivity commonly rely on parametric or single-response models, which are…
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Artikel Jurnal
Measuring the Impact of APOS Theory-Based Contextual Mathematics Assignments on the Mathematical Communication Skills of Prospective Teacher Students
Mathematical communication skills are essential for conveying ideas, interpreting symbols, and linking abstract concepts to contextual phenomena. This study aims to measure the effectiveness of applying APOS theory-based contextual tasks in improving the mathematical communication skills of…
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Artikel Jurnal
Application of Proportional Hazard and Additive Models in the Survival Analysis of Breast Cancer Patients
Breast cancer is the most common type of cancer among women and one of the highest causes of death among other types of cancer. This study aims to evaluate the methodological advantages of additive hazard models over the multiplicative Cox model in identifying temporal risk factors for breast…
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Artikel Jurnal
A Bayesian Structural Causal Modeling Framework for Analyzing Childhood Stunting Factors
This quantitative study investigates the causal determinants of childhood stunting using a structured questionnaire as the primary research instrument. The analysis applies Bayesian path modeling to examine how Economic Level influences Child Nutritional Status both directly and indirectly through…
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Artikel Jurnal
Development of Leapfrog-Hansen Numerical Model to Simulate One-Dimensional Dam-Break Flow
This study is a computational study aimed at developing and validating a numerical model for simulating one-dimensional dam-break flow. Dam construction, in addition to providing benefits to the community in terms of flood control, irrigation, and clean water sources, also carries the potential for…
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Artikel Jurnal
Nonparametric Biresponse Penalized Spline Regression for Modeling Stunting and Wasting in Kalimantan
Stunting and wasting remain major nutritional problems in Indonesia, including in Kalimantan, with considerable interregional variation. This condition suggests that the relationships between determinants and indicators of child nutritional status may be nonlinear and interdependent. This study…
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Artikel Jurnal
Analysis of Prospective Teachers' Self-Training Needs Regarding Mathematical Software Adaptation
In the modern educational landscape, the integration of technology into mathematics education is crucial, and prospective teachers are expected to be not only passive users but also adaptive developers of digital content. Despite being labeled as the "digital generation," a paradox has emerged…
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Artikel Jurnal
Handling Missing Values using Weighted Linear Combination of KNN-SVD: A Case Study of Rainfall Data in West Java
This study is an experimental and comparative quantitative research that evaluates missing value imputation methods for daily rainfall data in West Java. Rainfall data are crucial for environmental policies, particularly in flood control and water resource management. Daily rainfall records from…
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Artikel Jurnal
Mathematical Problem-Solving Ability Viewed from Self-Emotions: Case Study through Problem-Based Learning
Problem-solving ability is a skill that individuals must possess in the process of planning, making plans, implementing plans, and reviewing the correctness of the solutions obtained. However, many students still have difficulty solving the given problems. Self-emotion is an important factor in…
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Artikel Jurnal
Random Forest-Based Modeling of Life Expectancy in Central Kalimantan
This study investigates key socioeconomic determinants of life expectancy (LE) and develops a regional-level predictive model using the Random Forest regression approach for regencies and municipalities in Central Kalimantan Province during 2016–2023. Although life expectancy is a core indicator of…
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Artikel Jurnal
Students’ Cognitive Load in Understanding Linear Equation in One Variable
Cognitive load is the mental effort made by students in their working memory to process information received. This study aims to describe the cognitive load of students in understanding linear equation in one variable material. The research method used is qualitative with a case study type of…
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Artikel Jurnal
The Spread of Academic Boredom Model in the Context of Mathematics Lessons: Epidemiological Approach
Boredom in educational contexts seems to be a universal academic emotion, and one that is frequently experienced by students across age groups, educational needs, and ethnicity However, despite its significance in the context of mathematics lessons, academic boredom is rarely studied, especially in…