Fraction: Jurnal Teori dan Terapan Matematika <hr /> <div style="text-align: justify;"> <p><strong>Fraction</strong>: <strong>Jurnal Teori dan Terapan Matematika</strong> [<strong>E-ISSN: <a href="">2830-2028</a>; P-ISSN: <a href="">2962-1402</a></strong>] is an open-access and peer-reviewed journal that contains articles related to research results or research studies in the field of <strong>Mathematical Theory and Applications</strong>,<strong> including Analysis</strong>, <strong>Algebra and Number Theory, Control and Optimization, Discrete and Combinatorics Mathematics, Computational Mathematics, Applied Mathematics, and Statistics, Probabilities and Applications</strong>. This journal is published by the <strong>Department of Mathematics, Faculty of Engineering, Universitas Bangka Belitung</strong>.<strong> </strong></p> <p><strong>Fraction</strong>: <strong>Jurnal Teori dan Terapan Matematika </strong>is published 2 (two) times a year in <strong>June</strong> and <strong>December</strong> and is aimed to be a medium for publishing scientific articles for lecturers or researchers. This journal uses Open Journal Systems, open-source journal management and publishing software developed, supported, and freely distributed by the Public Knowledge Project under the GNU General Public License.</p> <hr /> <p>We invite you to submit your paper to <strong>Fraction</strong>: <strong>Jurnal Teori dan Terapan Matematika</strong>. Papers submission deadlines:</p> <p><strong>Submission deadline 1<sup>st</sup> edition: June</strong></p> <p><strong>Submission deadline 2<sup>nd</sup> edition: December</strong></p> <p>Submit your manuscripts today (in English and Indonesia) through <strong><a title="our online system" href="">our online system</a></strong>! The authors should refer to the <a title="Author Guidelines" href=""><strong>Author Guidelines</strong></a> in writing the manuscript. The authors are also encouraged to use citation manager software such as Mendeley or any other software in writing the manuscript. </p> <p>Anonymous referees evaluate submitted papers for contribution, originality, relevance, and presentation. The Editor shall inform you of the review results as soon as possible, approximately in 12 weeks.</p> </div> <hr /> en-US <p>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a title="Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License" href="" target="_blank" rel="noopener">Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License</a> that allows others to share the work with an acknowledgment of the work’s authorship and initial publication in this journal.</p> (Izma Fahria) (Desy Yuliana Dalimunthe) Fri, 01 Dec 2023 05:55:29 +0000 OJS 60 PEMODELAN JUMLAH KEMATIAN BAYI AKIBAT TETANUS NEONATORUM DENGAN METODE GEOGRAPHICALLY WEIGHTED ZERO-INFLATED POISSON REGRESSION <p><em>Tetanus Neonatorum (TN) is an infection in infants caused by the Clostridium tetani bacteria. In 2020, the Case Fatality Rate (CFR) due to TN in Indonesia increased to 50% compared to 2019, which was 11.76%. So it is necessary to study the number of infant deaths due to TN. This study discusses the modeling and factors that influence TN disease in Indonesia using the Geographically-Weighted Zero-Inflated Poisson Regression (GWZIPR) method. The GWZIPR model is divided into two based on the state: the ln model for the Poisson state and the logit model for the zero states. The data in this study are the number of infant deaths due to TN, the percentage of pregnant women carrying out Td2+ immunization, the percentage of pregnant women delivering at health facilities, and the percentage of puskesmas carrying out P4K in 34 provinces in Indonesia in 2020. The results of this study are that there is an excess zero of 58.82% and spatial heterogeneity occurs so that each region has a different model based on significant variables. The factors that influence the number of infant deaths due to TN are divided into four groups based on significant variables in the ln and logit models. </em></p> Astri Maulini, Nurfitri Imro'ah, Siti Aprizkiyandari Copyright (c) 2023 Astri Maulini, Nurfitri Imro'ah, Siti Aprizkiyandari Fri, 01 Dec 2023 00:00:00 +0000 PERAMALAN JUMLAH KEDATANGAN JALUR UDARA DI BANDARA DEPATI AMIR MENGGUNAKAN MODEL ARIMA (FORECASTING THE NUMBER OF ARRIVALS BY AIR AT DEPATI AMIR AIRPORT USES THE ARIMA MODEL) <p>ABSTRAK</p> <p>Provinsi Kepulauan Bangka Belitung terbagi menjadi dua pulau utama, yaitu Pulau Bangka dan Pulau Belitung. Sebagai salah satu provinsi kepulauan di Indonesia, Bangka Belitung menyadari bahwa transportasi menjadi akses penting untuk menunjang perekonomian. Transportasi udara merupakan salah satu sarana transportasi vital untuk mengunjungi atau berpergian dari Provinsi Kepulauan Bangka Belitung, selain transportasi darat dan laut. Penelitian ini bertujuan untuk memprediksi jumlah kedatangan penumpang di Bandara Depati Amir Provinsi Kepulauan Bangka Belitung. Penelitian ini dilakukan dengan menggunakan model ARIMA. Sumber data dalam penelitian ini merupakan data sekunder yang didapatkan dari Badan Pusa Statistik. Berdasarkan hasil dan pembahasan penelitian didapatkan model yang terbaik pada prediksi jumlah kedatangan penumpang di Bandara Udara Depati Amir yaiu model ARIMA (2,3,3) dimana nilai akurasi terbaik menggunakan MAE sebesar 46,197 sera hasil prediksi menunjukkan kedatangan.</p> <p> </p> Mei Nalda Adelia Simanjuntak, Reza Tipani, Zeby Melani Afriyanti, Indriyanto, Nurul Hidayati Copyright (c) 2023 Mei Nalda Adelia Simanjuntak, Reza Tipani, Zeby Melani Afriyanti, Indriyanto, Nurul Hidayati Fri, 01 Dec 2023 00:00:00 +0000 PENERAPAN MODEL LOG LINIER TERHADAP PERSEPSI MAHASISWA PADA SINETRON RELIGIUS <p><em>The purpose of this study is to find out which variables in the cell cause the contingency to be dependent in the case of student perceptions in religious soap operas. The data taken from this study are the results of a survey of IAIN Madura students with the variables having experienced events, gender and deepening religious knowledge. The data analysis method used is Linear Log Model. The conclusions in this study are as follows based on the estimated parameter values ​​presented in the table above, it can be seen that male and female IAIN MADURA students believe that religious soap operas can deepen religious knowledge, and also male and female students believe that religious soap operas cannot deepen religious knowledge. Based on the Chi Square values ​​presented in the table above, it can be seen that the opinion variable, deepening religious knowledge and having experienced an incident have no relationship or each variable is independent, so it cannot be continued to a linear logistic test.</em></p> Azwar Habibi Copyright (c) 2023 azwar habibi Fri, 01 Dec 2023 00:00:00 +0000 PREDIKSI EMISI GAS RUMAH KACA PADA SEKTOR ENERGI DI INDONESIA MENGGUNAKAN MODEL ARIMA <p>&nbsp;</p> <p>Perubahan cuaca ekstrem menjadi masalah global yang sangat memprihatinkan, termasuk di Indonesia. Salah satu penyebab hal ini adalah emisi Gas Rumah Kaca (GRK) yang diproduksi oleh aktivitas manusia. Berdasarkan data BPS tahun 2021, sektor energi merupakan salah satu penyumbang emisi GRK yang terbanyak di Indonesia. Tujuan penelitian ini adalah untuk memprediksi tingkat emisi GRK yang dihasilkan dari sektor energi dengan menggunakan model ARIMA (<em>Autoregressive Integrated Moving Average</em>). Adapun data yang digunakan yaitu data historis dari tahun 2000 – 2019 yang diperoleh dari Badan Pusat Statistik (BPS) Indonesia. Berdasarkan hasil analisis, diperoleh bahwa grafik hasil prediksi emisi gas rumah kaca di Indonesia mengalami peningkatan secara signifikan hingga tahun 2030. Artinya pada tahun-tahun mendatang sektor energi masih diprediksi sebagai penyumbang utama emisi GRK di Indonesia.</p> <p>&nbsp;</p> Agnes Pramita, Nur Kholisoh, Rohil Agatha Lusia Copyright (c) 2023 Agnes Pramita, Nur Kholisoh, Rohil Agatha Lusia Fri, 01 Dec 2023 00:00:00 +0000 PENGARUH SISTEM PEMBELAJARAN HYBRID TERHADAP TINGKAT PEMAHAMAN MAHASISWA DI JURUSAN MATEMATIKA UNIVERSITAS BANGKA BELITUNG TAHUN AJARAN 2021/2022 <p><span style="vertical-align: inherit;"><span style="vertical-align: inherit;">Suatu hal yang tidak dapat dihindari oleh setiap orang yaitu evolusi zaman. </span><span style="vertical-align: inherit;">Oleh karena itu diperlukan kemampuan untuk mengikuti perkembangan ilmu pengetahuan dan teknologi (IPTEK). </span><span style="vertical-align: inherit;">Pembelajaran jarak jauh/ Daring adalah suatu alternatif proses pembelajaran yang sempat dilakukan. </span><span style="vertical-align: inherit;">Namun proses jarak jauh pembelajaran yang tidak sesuai dan banyak kendala mengalami kembali memaksa dosen/pengajar untuk mengubah strategi pembelajaran. </span><span style="vertical-align: inherit;">Tujuan dari penelitian ini yaitu untuk mengetahui apakah sistem pembelajaran hybrid dapat mempengaruhi pemahaman belajar mahasiswa Jurusan Matematika Universitas Bangka Belitung. </span><span style="vertical-align: inherit;">Penelitian ini dilakukan menggunakan metode penelitian kualitatif dengan bantuan software statistik untuk pengolahan data. </span><span style="vertical-align: inherit;">Hasil analisis regresi ternyata nilai koefisien determinasi (R2) sebesar 0,215 atau sama dengan 21,5%.</span></span></p> Imam Izzulsyah, Iken Setiawan, Jhodi Adi Sihamat, Haef Iliyyin, Puput Syakila Copyright (c) 2023 Imam Izzulsyah, Iken Setiawan, Jhodi Adi Sihamat, Haef Iliyyin, Puput Syakila Fri, 01 Dec 2023 00:00:00 +0000