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All Journal JIPF (Jurnal Ilmu Pendidikan Fisika) Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal)
MUHAMMAD NUGROHO, MUHAMMAD
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Agriculture, Biological Sciences & Forestry Chemistry Education Physics

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Global Warming E-Books based on Learning style: Is it Effective to Enhance Students’ Problem-Solving Skills? Luthfiana, Aisyah; Farhan, Muhammad; Jumadi, Jumadi; Nugroho, Muhammad; Rudin, Irfandi
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 10, No 2 (2025): May 2025
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jipf.v10i2.5648

Abstract

This study was conducted to assess the effectiveness of using physics e-books adapted to learning style in understanding material about global warming and improving students’ problem-solving skills. The independent variable in this study was the use of physics e-books based on learning style in global warming material, while the dependent variable was students’ skills to solve related problems. The research method used was pre-experimental with a one-group pretest-posttest design at SMAN 10 Yogyakarta, involving 61 grade X students who were selected using a purposive sampling technique. Assessment of students’ problem-solving skills is carried out by referring to previously established indicators. The data were then analyzed using SPSS, including tests for normality, homogeneity, one-way ANOVA, and N-gain. The research results indicated that although students' problem-solving abilities were in the moderate category, the use of physics e-books integrating students' learning styles significantly improved their understanding of global warming material. This indicates that the use of electronic teaching materials that are adapted to students' learning styles can have a positive impact on their cognitive development. Thus, students can learn more effectively by adhering to their respective learning styles and overcoming learning challenges through the guidance provided in the e-book.
Karakterisasi FTIR Arang Limbah Sawit untuk Menilai Potensi Prekursor Komposit rGO–Fe₃O₄ pada Aplikasi Sensor Magnetik Geofisika Oktafiansyah, Rahmad; Wianto, Totok; Najmi, M. Ikhwan; Safitri, Maya; Muhaemina, Maulanie; Nugroho, Muhammad
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 3 (2025): Agustus
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i3.1213

Abstract

Pemanfaatan limbah biomassa kelapa sawit sebagai bahan baku material fungsional berpotensi memberikan solusi berkelanjutan dalam pengelolaan limbah dan pengembangan teknologi sensor. Penelitian ini bertujuan untuk mengkarakterisasi gugus fungsi permukaan dari arang cangkang, tandan kosong, dan campuran keduanya melalui spektroskopi FTIR, guna mengevaluasi kelayakannya sebagai prekursor dalam sintesis komposit reduced Graphene Oxide (rGO)–Fe₃O₄ untuk aplikasi sensor magnetik geofisika. Sampel arang diperoleh melalui pirolisis pada suhu 400 °C selama 1 jam, kemudian dianalisis pada rentang spektrum 400–4000 cm⁻¹. Hasil menunjukkan bahwa arang campuran menampilkan struktur aromatik C=C paling dominan (%T 80% pada 1585 cm⁻¹), kandungan gugus karbonil (C=O) yang rendah (%T 90,7%), dan gugus eter/alkohol (C–O) yang cukup sebagai situs ikatan Fe₃O₄. Interaksi termokimia antara lignin dalam cangkang dan selulosa dalam tandan menghasilkan atmosfer reduktif internal yang meningkatkan kualitas rGO tanpa memerlukan perlakuan kimia agresif. Dengan kombinasi tersebut, arang campuran menawarkan kestabilan struktural, konduktivitas, dan kompatibilitas kimiawi yang superior dibandingkan bahan tunggal. Hasil ini menunjukkan bahwa limbah arang kelapa sawit, khususnya dalam bentuk campuran, sangat potensial sebagai prekursor lokal untuk pengembangan sensor magnetik berbasis nanokomposit yang ramah lingkungan dan efisien.
Co-Authors Jumadi Jumadi Luthfiana, Aisyah Maya Safitri Muhaemina, Maulanie Muhammad Farhan Najmi, M. Ikhwan Oktafiansyah, Rahmad Rudin, Irfandi Totok Wianto