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WIHARDJO, EDY
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IMPLEMENTATION OF INTEGER PROGRAMMING USING THE BRANCH AND BOUND METHOD ASSISTED BY PYTHON IN OPTIMIZING THE PRODUCTION OF COOKIES Saranta, Nira Nityasa; Setiawani, Susi; Prihandini, Rafiantika Megahnia; CahyaPrihandoko, Antonius; Wihardjo, Edy
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 18 No 3 (2024): BAREKENG: Journal of Mathematics and Its Application
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol18iss3pp1423-1432

Abstract

Many people are interested in cookies. Due to the high consumer interest in cookies, many companies produce cookies with various variants, one of which is Rizky Bakery. The problem faced by Rizky Bakery is how to determine the amount of production of 6 types of cookies to reach the maximum profit. Rizky Bakery carries out production activities to meet high market demand and standard demand. This study constructs a model that accommodates both conditions. The model is solved by using the Branch and Bound method constraints on materials, manufacturing time, fee labor, payment for resellers, and production targets. The purpose of this research is to determine the total number program model and the optimal solution by maximizing the profit of cookie production using Branch and Bound. Optimization using the Branch and Bound method can utilize the Python programming language with a limit of 50 iterations. Data collection methods used for this research are interviews and documentation. The limitation of the problem in this research is that the model to be studied is limited to the average condition of demand is standard and when demand is high. The results of the analysis at times of high demand showed that the production of nastar cookies, castangel cookies, mawar cookies, putri salju cookies, peanut cookies, and custard cookies in 300-gram packaging respectively are 250, 45, 80, 39, 90, 150 and in 500-gram packages are 40, 10, 10, 6, 45, and 45. While, the result of standard demand in 300-gram packaging respectively are 100, 25, 50, 16, 50, 60 and the 500-gram packaging respectively are 10, 3, 10, 2, 10, 20. The profit earned when the demand is high is IDR 8,769,412.00 and the standard demand is IDR 3,769,504.00.
Konsep Pemikiran Pierre Bourdieu dan Relevansinya terhadap Pengembangan Budaya Akademik di Perguruan Tinggi Wihardjo, Edy; Pranawukir, Iswahyu; Yusuff, Andinna Ananda; Setiawan, Mohammad Febry Saputra; Fardhoni, Fardhoni
INCARE, International Journal of Educational Resources Vol. 5 No. 4 (2024): December 2024
Publisher : FKDP (Forum Komunikasi Dosen Peneliti)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59689/incare.v5i4.1073

Abstract

College is an educational institution that has an important role in providing contributive discourse in social life. How the tradition of critical thinking, respecting pluralistic thinking, and trying to strengthen a multicultural society becomes an academic culture in the intellectual arena. In developing an academic culture, the academic community, in this case becomes an agent, with the appropriate capital and habitus, can change or achieve certain goals. So, to make this happen, analysis and practice are needed that support the development of academic culture. One of the roles of this research is to explain Pierre Bourdieu's thinking and its relevance to the development of academic culture in higher education. Of course, the academic culture in question is in accordance with the goals of each educational institution. Apart from providing Bourideu's perspective, this research also aims to explain the steps that must be taken by agents in an intellectual arena. This research uses a literature or library research method to understand Bourdieu's basic thought concepts related to academic culture. Finally, Bourdieu's concept of thought provides analysis and practices that must be carried out in developing an academic culture in higher education. And how to overcome the problems that occur in it.
NUMERICAL ANALYSIS OF BLOOD VESSEL CONSTRICTION DUE TO ATHEROSCLEROSIS DISEASE USING FINITE VOLUME METHOD Fatahillah, Arif; Mubarokah, Umi; Megahnia Prihandini, Rafiantika; Wihardjo, Edy; Adawiyah, Robiatul; Hussen, Saddam; Monalisa, Lioni Anka
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 19 No 4 (2025): BAREKENG: Journal of Mathematics and Its Application
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol19iss4pp2661-2678

Abstract

Atherosclerosis is a leading cause of coronary heart disease. This study analyses how elliptically shaped stenoses alter blood-flow velocity in coronary arteries. The governing equations are discretised with the finite-volume method, coupling pressure and velocity through the SIMPLE (Semi-Implicit Method for Pressure-Linked Equations) algorithm and accelerating convergence with the Successive Over-Relaxation (SOR) technique. A weighted Gauss–Seidel iteration whose over-relaxation factor ( in this work) damps low-frequency error modes, cutting the number of iterations needed for residuals to fall below 10⁻⁴ by roughly 40 % compared with the standard Gauss–Seidel scheme. Simulations of 30 %, 50 %, and 70 % constrictions were carried out in MATLAB R2013a and ANSYS Fluent. Quantitative and qualitative cross-validation of the two software packages confirmed consistent velocity and pressure fields, though minor discrepancies arose from differing numerical schemes and model assumptions, underscoring the need for experimental verification. The highest centre-line velocity occurred at 70 % stenosis—0.72075 m/s in MATLAB versus 0.90 m/s in Fluent—while the lowest was recorded at 30 %. Velocity–pressure profiles showed that increasing inlet velocity or degree of narrowing elevates velocity but decreases pressure, with the largest drop (11492.4 Pa in MATLAB; 11747.32 Pa in Fluent) again at 70% stenosis. Study limitations include modelling blood as a Newtonian fluid and idealising arterial geometry; future work should incorporate non-Newtonian rheology and patient-specific shapes to enhance physiological accuracy.
Optimizing Learning: Adaptive Technology Integration in Indonesia's Education System Agustina, Rika Hasmayanti; Alfiyanto, Afif; Suhendri, Suhendri; Wihardjo, Edy; Pranajaya, Syatria Adymas
Jurnal Ilmu Pendidikan (JIP) STKIP Kusuma Negara Vol 16 No 2 (2025): Innovation and Development in Education in the Digital Era: Strategies, Technolo
Publisher : LPPM STKIP Kusuma Negara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37640/jip.v16i2.2293

Abstract

Adaptive technology in education offers an innovative solution to enhance learning quality by personalizing instructional materials according to students’ needs. This study aims to analyze the potential of adaptive technology in Indonesia’s education system and identify its implementation challenges. Using a literature review method, this research examines various studies on the application of adaptive technology in education, particularly within the "Merdeka Belajar" framework. The findings indicate that adaptive technology can enhance student engagement, facilitate data-driven learning, and assist teachers in accurately identifying student difficulties. However, major challenges in its implementation include limited infrastructure, gaps in digital literacy among educators, and cultural resistance to technology in education. To address these barriers, strategic measures such as strengthening digital infrastructure, implementing TPACK-based teacher training, and educating communities about the benefits of adaptive technology are necessary. With these recommendations, adaptive technology is expected to be effectively integrated into Indonesia’s education system, fostering more inclusive, flexible, and high-quality learning.
Pengembangan E-LKPD Interaktif Berbasis Liveworksheets dalam Pembelajaran Berdiferensiasi pada Materi Limas Fase D Cahya, Ine Clarita; Susanto, Susanto; Safrida, Lela Nur; Yudianto, Erfan; Wihardjo, Edy
Jurnal Tadris Matematika Vol 7 No 2 (2024)
Publisher : Universitas Islam Negeri Sayyid Ali Rahmatullah Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21274/jtm.2024.7.2.251-268

Abstract

This study aims to develop an interactive e-worksheet (E-LKPD) based on Liveworksheets for differentiated learning on the topic of pyramids (limas) in Phase D that is valid, practical, and effective in improving student learning outcomes. The research employed a development method using the ADDIE model, involving eighth-grade students as subjects. Instruments used include validity, practicality, and effectiveness instruments, with data collected through questionnaires and learning outcome tests. The developed product consists of three E-LKPDs tailored to students’ readiness levels: developing, proficient, and highly proficient. Validation results show an average score of 3.81 out of 4, categorized as very valid. Practicality was measured through teacher and student responses, yielding an average of 76.26%, which falls into the practical category. Effectiveness was assessed based on the learning test results, showing a mastery level of 89%, indicating that the E-LKPD is effective for classroom use. This study is essential due to the growing need for interactive learning materials that accommodate differences in student learning abilities, particularly within the current differentiated learning framework. Moreover, the use of digital tools like Liveworksheets remains underutilized, especially in mathematics topics such as pyramids. This E-LKPD is expected to make learning more engaging and tailored to individual needs, and serve as a foundation for future development of more innovative digital learning materials.
PEMANFAATAN LIMBAH TERNAK MENJADI PUPUK ORGANIK PADAT DAN CAIR GUNA MENDUKUNG PERTANIAN BERKELANJUT Subekti, Sri; Puspaningrum, Diah; Zahra, Amanatta; Sari, Dini Yurindiana; Nurfauziana, Tazkia; Sutrisno, Sutrisno; Wihardjo, Edy
INTEGRITAS : Jurnal Pengabdian Vol 6 No 2 (2022): AGUSTUS - DESEMBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat - Universitas Abdurachman Saleh Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36841/integritas.v6i2.2527

Abstract

Pemberdayaan adalah sebuah hubungan keterkaitan antara pemberdayaan dengan sasaran yang akan menjadi tujuan pemberdayaan. Pemberdayan memiliki arah untuk memberikan sebuah motivasi kepada sasaran dengan pendidikan untuk memberikan kesadaran kepada sasaran. Partisipasi masyarakat terdiri dari 3 dimensi yaitu dimensi kontribusi yang dilakukan, dimensi pengorganisasiaan dan pemberdaayan masyarakat sehingga perlunya partisipasi masyarakat dalam pemanfaatan potensi. Tujuan kegiatan pengabdian kepada masyarakat ini yaitu untuk meningkatkan pengetahuan dan kemampuan petani untuk mengolah limbah peternakan menjadi input produksi pertanian yaitu pupuk. Metode yang digunakan yaitu metode ceramah dan demonstrasi kepada anggota sekolah ternak di Desa Kemiri. Kegiatan ini dilakukan dengan pemberian materi melalui media power point lalu melakukan demonstrasi sehingga penyuluhan ini memiliki keberhasilan yaitu petani memiliki pengetahuan dan kemampuan untuk membuat pupuk organik cair dan padat dari limbah ternak. Keberhasilan ini diukur dengan hasil kontribusi petani yang aktif dalam diskusi ketika proses demonstrasi. Peningkatan pengetahuan dan kemampuan tersebut diharapkan dapat berkontribusi dalam proses penerapan kedepannya.
The Correlation of Junior High School Students’ Self-Confidence and Mathematical Problem-Solving Ability Monalisa, Lioni Anka; Indah Kristiana, Arika; Wihardjo, Edy; Hussen, Saddam; Annastasia Putri, Fiorent
Mosharafa: Jurnal Pendidikan Matematika Vol. 13 No. 4 (2024): October
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v13i4.1692

Abstract

Abstrak Kemampuan pemecahan masalah matematis merupakan salah satu kompetensi penting yang harus dimiliki oleh siswa, dan kepercayaan diri diyakini memiliki kontribusi signifikan terhadap pencapaiannya. Penelitian ini bertujuan untuk mengetahui hubungan antara kepercayaan diri (self-confidence) dan kemampuan pemecahan masalah matematis siswa SMP. Penelitian ini menggunakan metode kuantitatif dengan desain korelasional. Subjek penelitian adalah 87 siswa kelas VIII di SMP Negeri 12 Jember pada semester genap tahun ajaran 2023/2024. Data dikumpulkan melalui angket kepercayaan diri dan tes kemampuan pemecahan masalah matematis. Berdasarkan analisis deskriptif, nilai rata-rata kepercayaan diri siswa adalah 96,08 dengan kategori dominan berada pada tingkat sedang (74,71%). Hasil analisis korelasi menunjukkan terdapat hubungan yang positif antara kepercayaan diri dan kemampuan pemecahan masalah matematis. Kesimpulan dari penelitian ini adalah semakin tinggi tingkat kepercayaan diri siswa, maka semakin baik kemampuan mereka dalam menyelesaikan soal-soal matematika secara problematis. Implikasi dari temuan ini menunjukkan pentingnya strategi pembelajaran yang tidak hanya fokus pada aspek kognitif, tetapi juga afektif siswa, seperti penguatan rasa percaya diri guna mendukung keberhasilan akademik, khususnya dalam pembelajaran matematika. Abstract Mathematical problem-solving ability is one of the essential competencies students must possess, and self-confidence is believed to significantly contribute to its achievement. This study aims to determine the correlation between self-confidence and junior high school students’ mathematical problem-solving ability. The research employed a quantitative method with a correlational design. The subjects were 87 eighth-grade students at SMP Negeri 12 Jember during the even semester of the 2023/2024 academic year. Data were collected through a self-confidence questionnaire and a mathematical problem-solving test. Based on descriptive analysis, the average self-confidence score was 96.08, with the majority (74.71%) falling into the average category. The results of the correlation analysis showed a positive relationship between self-confidence and mathematical problem-solving ability. The conclusion of this study indicates that the higher the level of students’ self-confidence, the better their ability to solve mathematical problems. The implications of these findings highlight the importance of learning strategies that focus not only on cognitive aspects but also on students’ affective domains, such as enhancing self-confidence to support academic success, particularly in mathematics learning.
PENGEMBANGAN GAME EDUKASI “LINGED MATH” PADA MATERI LINGKARAN SMP Nurbuono, Mousthapaa; Kristiana, Arika Indah; Hussen, Saddam; Wihardjo, Edy; Murtikusuma, Randi Pratama
EDUPEDIA Vol. 8 No. 1 (2024): April
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/ed.v8i1.2664

Abstract

Educational games are games specifically designed with educational themes to get learning outcomes. This research develops an educational game "Linged Math" which is designed to make it easier for students to understand circle material, cirle material is one of the materials at the junior high school level which is difficult for students to understand. The purpose of this research is to develop educational game products based on pcgames use Construct 3 software to increase students' understanding of valid, practical, and effective circle material. This research model uses a 4-D development model, namely define, design, develop, and disseminate. This educational game was tested on class VIII students of SMPN 7 Jember. Data collection methods in this study used observation, tests, and user response questionnaires. The results of this study indicate that the level of validation of the educational game "Linged Math" from the validator is 3.84 so that it is categorized valid. The percentage of the practicality level of the educational game "Linged Math" from the results of the user response questionnaire was 86.25% which was categorized as very good. The level of effectiveness is obtained from the average N-Gain of the overall results of the student's pre-test and post-test of 0.77 so that it is categorized as high or effective. Based on the results of these data, the educational game "Linged Math" is said to be valid, practical, and effective.
PERSEPSI SISWA KELAS VIII SMP TERHADAP IMPLEMENTASI KURIKULUM MERDEKA PADA PEMBELAJARAN MATEMATIKA NAJIB, MOCHAMMAD IDFANI WAHIB; SETIAWANI, SUSI; MONALISA, LIONI ANKA; WIHARDJO, EDY; OKTAVIANINGTYAS, ERVIN
SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA Vol. 4 No. 1 (2024)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia (P4I)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/science.v4i1.2906

Abstract

This research aims to describe the perceptions of grade 8 students regarding the implementation of the Merdeka Curriculum in Mathematics learning in terms of 4 aspects, namely professional learning practices, professional development, differentiated learning, and strengthening the Pancasila student profile. This type of research is descriptive research with a quantitative approach. The sampling technique used was simple random sampling with a sample of 142 class VIII students at SMPN 4 Jember. The instruments used were questionnaires and interviews. The data analysis technique used is descriptive statistics. The research results showed that students' perceptions of the implementation of the Merdeka Curriculum were good with a percentage in the professional learning aspect of 48.59%, professional development of 51.4%, differentiated learning of 72.54%, strengthening of the Pancasila student profile of 62.68%, and in overall aspect it was 69.72%. Based on these results, it can be concluded that the implementation of the Independent Curriculum in Mathematics learning in Class VIII of SMP Negeri 4 Jember was carried out well. ABSTRAKPenelitian ini bertujuan untuk mendeskripsikan persepsi siswa kelas 8 terhadap implementasi Kurikulum Merdeka pada pembelajaran Matematika yang ditinjau dari 4 aspek yaitu praktik pembelajaran profesional, pengembangan profesi, pembelajaran berdiferensiasi, dan penguatan profil pelajar Pancasila. Jenis penelitian ini merupakan penelitian deskriptif dengan pendekatan kuantitatif. Teknik sampling yang digunakan adalah simple random sampling dengan sampel sebanyak 142 siswa kelas VIII SMPN 4 Jember. Instrumen yang digunakan berupa angket dan wawancara. Teknik analisis data yang digunakan adalah statistik deskriptif. Hasil penelitian menunjukkan bahwa persepsi siswa terhadap implementasi Kurikulum Merdeka terlaksana baik dengan persentase pada aspek pembelajaran profesional sebesar 48,59%, pengembangan profesi sebesar 51,4%, pembelajaran berdiferensiasi sebesar 72,54%, penguatan profil pelajar Pancasila sebesar 62,68%, dan secara aspek keseluruhan sebesar 69,72%. Berdasarkan hasil tersebut dapat disimpulkan bahwa Implementasi Kurikulum Merdeka pada pembelajaran Matematika di Kelas VIII SMP Negeri 4 Jember terlaksana dengan baik.
Comparative Study of Text Editors for Scientific Paper Writing with Mathematical Notation Wihardjo, Edy; Fatahillah, Arif; Hussen, Saddam; Anka Monalisa, Lioni
Journal of Digital Literacy and Volunteering Vol. 2 No. 2 (2024): July
Publisher : Puslitbang Akademi Relawan TIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57119/litdig.v2i2.111

Abstract

Writing scientific papers that include complex mathematical notation requires specialized text editors. This study provides a comprehensive review of various text editors, evaluating their effectiveness for tasks involving mathematical notation. The comparison includes freeware and paid software such as OpenOffice, LibreOffice, Microsoft Word, TeXmacs, and Overleaf, examining aspects like file formats, file size, installation process, learning curve, collaboration ease, and output formats. Through a detailed analysis of existing literature, the study highlights the strengths and weaknesses of each editor, with a particular focus on LaTeX's precision and versatility. The findings suggest that LaTeX is the preferred choice for its high-quality output, while Overleaf offers significant advantages for collaborative projects. Freeware options like GNU TeXmacs and LibreOffice are also viable alternatives, each with unique benefits. The study concludes with recommendations on choosing the appropriate text editor based on specific project requirements and user preferences.
Co-Authors AA Sudharmawan, AA Agustina, Rika Hasmayanti Aji, Ahmad Alfiyanto, Afif Andinna Ananda Yusuff Annastasia Putri, Fiorent Arif Fatahillah Arika Indah Kristiana Cahya, Ine Clarita CahyaPrihandoko, Antonius D. Dafik Dana, Lusita Risma Darmadi, D Deddy Setiawan Erfan Yudianto Ervin Oktavianingtyas Fardhoni, Fardhoni Indah Kristiana, Arika Iswahyu Pranawukir Karim Karim, Karim Karim, K Lioni Anka Monalisa, Lioni Anka Megahnia Prihandini, Rafiantika Mubarokah, Umi NAJIB, MOCHAMMAD IDFANI WAHIB Nurbuono, Mousthapaa Nurfauziana, Tazkia Priyanti, Nanda Rahma Puspaningrum, Diah R. Ati Sukmawati, R. Ati Rafiantika Megahnia Prihandini Randi Pratama Murtikusuma Robiatul Adawiyah Saddam Hussen Santoso, Aji Mansur Saranta, Nira Nityasa Sari, Dini Yurindiana Setiawan, Mohammad Febry Saputra Sri Subekti Sudi Prayitno Suhendri Suhendri Susanto Susanto Susi Setiawani Sutrisno, Sutrisno Syatria Adymas Pranajaya Zahra, Amanatta Zulnaidi, Hutkemri