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All Journal Hydrogen: Jurnal Kependidikan Kimia Jurnal Minfo Polgan (JMP) Aurelia: Jurnal Penelitian dan Pengabdian Masyarakat Indonesia
Rizki, M
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Humanities Chemistry Computer Science & IT Education Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Social Sciences

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Islam and Indonesian Culture (Rituals and Institutions) Darwis, Muhajir; Mulyati, Sri; Rizki, M; Rusdahlia, Rusdahlia; Azan, Fadilah; Hidayah, Nurul; Agustina, Ica Tamara
AURELIA: Jurnal Penelitian dan Pengabdian Masyarakat Indonesia Vol 3, No 2 (2024): July 2024
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/aurelia.v3i2.2836

Abstract

This article explores the relationship between Islam and culture in Indonesia, focusing on aspects of ritual and religious institutions. Indonesia itself has quite a bit of cultural diversity and religious traditions, so this journal aims to investigate various aspects of Islam in life in Indonesia and how this influences rituals and institutions in Indonesia. The first part discussed in this journal is tracing the development of Islam in Indonesia, how Islam is integrated with local culture, and how the Islamic movement in Indonesia influenced the formation of religious rituals and institutions. Then the journal will explore various types of Islamic religious rituals in Indonesia, as well as explore Islamic institutions in forming Islamic identity in Indonesia, as well as explore their relationship with local culture. By presenting an understanding of the relationship between Islam and culture in Indonesia, it is hoped that the journal can contribute to religious, social and cultural studies in Indonesia in the future. The research method used is a qualitative approach with a focus on literature analysis. The research will explore information from relevant journals, books and previous research to gain an in-depth understanding of the role of rituals and religious institutions in the lives of Indonesian society.
Perbandingan Algoritma Sarima dan Prophet Untuk Peramalan Trend Penjualan Voucher Game Online Rizki, M; Priyanto, Dadang; Martono, Galih Hendro; Sulistianingsih, Neny; Syahrir, Moch
Jurnal Minfo Polgan Vol. 14 No. 2 (2025): Artikel Penelitian
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/jmp.v14i2.15083

Abstract

Industri game online terus mengalami perkembangan pesat, mendorong kebutuhan akan sistem peramalan yang akurat untuk mendukung pengambilan keputusan strategis dalam manajemen penjualan dan promosi. Studi ini bertujuan untuk membandingkan kinerja dua algoritma peramalan deret waktu, yaitu Seasonal Autoregressive Integrated Moving Average (SARIMA) dan Prophet, dalam memprediksi tren penjualan voucher game online di platform Kiyystore. Data yang digunakan dalam penelitian ini mencakup transaksi historis dari tahun 2022 hingga 2024, dengan total 5,530 data penjualan. Studi ini menerapkan metodologi Cross Industry Standard Process for Data Mining (CRISP DM) yang terdiri dari tahap pemahaman bisnis, pemrosesan data, pemodelan, dan evaluasi. Model SARIMA dipilih karena kemampuannya untuk menangkap pola musiman dan tren dalam data stasioner. Sementara itu, Prophet digunakan karena dirancang untuk menangani tren non-linear, pola musiman, dan anomali secara otomatis. Evaluasi kinerja dari kedua algoritma dilakukan menggunakan dua metrik utama, yaitu Mean Absolute Error (MAE) dan Root Mean Squared Error (RMSE). Hasil penelitian menunjukkan bahwa Prophet unggul dalam metrik MAE dengan nilai 0,7054, yang menunjukkan kinerja yang lebih baik dalam meminimalkan kesalahan rata-rata. Di sisi lain, SARIMA menunjukkan keunggulan dalam metrik RMSE dengan nilai 0,9514, yang berarti model ini lebih efektif dalam menangani kesalahan besar atau pencilan dalam prediksi. Studi ini memberikan kontribusi penting dalam pemilihan metode peramalan yang sesuai dengan karakteristik data. Dengan memahami keunggulan masing-masing algoritma, pelaku industri game online dapat lebih optimal dalam merencanakan strategi stok dan promosi, sehingga meningkatkan efisiensi dan daya saing bisnis secara keseluruhan
Development of A Virtual Laboratory for Electrochem to Support Students' Critical Thinking Skills Rizki, M; Asyhar, Rayandra; Miharti, Isra; Zurweni; Ekaputra, Firdiawan
Hydrogen: Jurnal Kependidikan Kimia Vol. 14 No. 2 (2026): April 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v14i2.19708

Abstract

The application of interactive learning media plays an important role in stimulating motivation and deepening students' understanding, especially in bridging the characteristics of abstract chemistry learning, one of which is the material of electrolyte and non-electrolyte solutions. The main problem in chemistry learning in Madrasah Aliyah is the limited physical laboratory facilities, which impacts the low critical thinking skills of students. This study aims to develop a Virtual Laboratory "Electrochem Lab" that supports critical thinking skills and to test its feasibility conceptually and practically. As a supporting instrument, Electrochem Lab is equipped with an evaluation feature in the form of a quiz consisting of 5 questions based on Higher Order Thinking Skills (HOTS) that have been adjusted to train students' critical thinking skills independently. The study adopts a Research and Development (R&D) framework, specifically following the Lee & Owens model, which progresses through phases of analysis, design, development, implementation, and evaluation. The experimental subjects involved two experts (materials and media), one chemistry teacher, and 13 students of grade XI IPA MAN 5 Batang Hari consisting of 3 students in one-to-one tests with heterogeneous cognitive representations and 10 students in small group tests. The data collection instrument used a Likert Scale questionnaire consisting of a media expert questionnaire and a material expert questionnaire, a student response questionnaire and a one-to-one trial instrument. Evidence of the validity of the instrument and product was obtained through expert assessments stating that the media was very suitable for testing. The results showed a feasibility percentage of 90% from media experts and 89.23% from material experts, both of which were considered very suitable. The practitioner's assessment (chemistry teacher) reached 94.55%, while the one-to-one test reached 86,6% and the small group trials reached 98% with a very good category. It can be concluded that the Android-based virtual laboratory "Electrochem Lab" is very suitable to be used as an innovative solution to bridge the understanding of abstract concepts through sub-microscopic visualization and support the training of students' critical thinking skills. The novelty of this research lies in the integration of a contextual approach in digital simulations that connect learning materials with the students' surroundings and the Madrasah Aliyah environment.
Co-Authors Agustina, Ica Tamara Azan, Fadilah Darwis, Muhajir Firdiawan Ekaputra Galih Hendro Martono Isramiharti Isramiharti Neny Sulistianingsih NURUL HIDAYAH Rayandra Asyhar Rusdahlia, Rusdahlia Sri Mulyati Syahrir, Moch. Zurweni