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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) JFA (Jurnal Fisika dan Aplikasinya) Journal of Physics and Its Applications JPF : JURNAL PENDIDIKAN FISIKA Jurnal Studi Guru dan Pembelajaran Jurnal Abdi Insani Madaniya Abdimas Singkerru Jurnal Abdimas Indonesia : Jurnal Abdimas Indonesia Abdimas Langkanae Jurnal Abdimas Prakasa Dakara Jurnal Ilmu dan Inovasi Fisika Jurnal Sains Materi Indonesia APCP Journal
Ramli, Irwan
Department Of Physics, Universitas Cokroaminoto Palopo, Jl Lamaranginang, Palopo 91913, Indonesia
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PENDAMPINGAN PELAKSANAAN LESSON STUDY BAGI GURU BIOLOGI DI SMA NEGERI 2 PALOPO Eva Sohriati; Nurmalasari S.; Nurasia Nurasia; Irwan Ramli; Khaerati Khaerati
Jurnal Abdimas Indonesia Vol. 3 No. 3 (2023): Juli-September 2023
Publisher : Perkumpulan Dosen Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53769/jai.v3i3.533

Abstract

Kegiatan pendampingan pelaksanaan lesson Study bagi guru biologi di SMA Negeri 2 Palopo bertujuan untuk meningkatkan keterampilan guru dalam merancang proses pembelajaran di dalam kelas berbasis lesson study dengan tujuan agar dapat meningkatkan keaktifan peserta didik dalam proses pembelajaran sehingga dapat meningkatkan hasil belajar peserta didik khususnya pada mata pelajaran biologi. Kegiatan ini dilaksanakan selama 1 bulan yakni pada bulan Juli 2023. Kegiatan dilaksanakan dalam 3 tahapan yakni perencanaan, pelaksanaan dan Evaluasi. Pada tahapan perencanaan tim pengabdian melakukan observasi awal dan wawancara dengan pihak sekolah terkait permasalahan guru biologi disekolah. Pada tahapan pelaksanaan dilakukan melalui kegiatan pelatihan penyusunan bahan ajar atau kegiatan penyususnan lesson plan oleh guru model, dilanjutkan dengan tahapan pelaksanaan pembelajaran didalam kelas (do) dan diakhiri dengan kegiatan see yang merupakan refleksi dari pelaksanaan kegiatan didalam kelas. Adapun hasil yang diharapkan dari kegiatan ini adalah meningkatnya keterampilan guru dalam mengajar dan meningkatkan keaktifan serta hasil belajar peserta didik. Hasil dari kegiatan lesson study terlihat adanya peningkatan keaktifan siswa dalam proses pembelajaran didalam kelas.
Android Based Multimedia for Teaching Science in Junior High School Ramli, Irwan; Nurasia, Nurasia; Khaerati, Khaerati
Jurnal Pendidikan Fisika Vol 13, No 1 (2025): PENDIDIKAN FISIKA
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/jpf.v13i1.17202

Abstract

The COVID-19 pandemic has profoundly transformed global education, necessitating adaptive learning strategies to overcome the challenges of remote science instruction. This study aimed to develop and evaluate Android-based interactive multimedia using Adobe Flash CS for science learning, particularly human excretory system material, at Sukamaju State Junior High School 1. The research employed a Research and Development (RD) approach based on the ADDIE model, comprising analysis, design, development, implementation, and evaluation stages. The study involved 27 students from class VIII, selected through simple random sampling. Data were collected using expert validation sheets, teacher and student response questionnaires, and student learning outcomes assessments. The results indicated that the developed multimedia met all quality standards: media expert validation (98.5%), material validation (97%), language validation (86%), and video content validation (92%), all categorized as “very valid.” In terms of practicality, teacher and student responses yielded scores of 98% and 84.2%, respectively, indicating high practicality. Regarding effectiveness, student learning outcomes averaged 87.23%, and class completeness reached 81.4%, both falling into the “very effective” category. These findings demonstrate that Android-based science multimedia significantly enhances student engagement and learning outcomes by offering visually rich, interactive, and flexible educational content. The multimedia enables autonomous learning and supports teachers in delivering effective science instruction. Future research is recommended to broaden the content coverage across subjects and to develop applications compatible with online platforms for wider accessibility.
Android Based Multimedia for Teaching Science in Junior High School Ramli, Irwan; Nurasia, Nurasia; Khaerati, Khaerati
Jurnal Pendidikan Fisika Vol. 13 No. 1 (2025): PENDIDIKAN FISIKA
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/jpf.v13i1.17202

Abstract

The COVID-19 pandemic has profoundly transformed global education, necessitating adaptive learning strategies to overcome the challenges of remote science instruction. This study aimed to develop and evaluate Android-based interactive multimedia using Adobe Flash CS for science learning, particularly human excretory system material, at Sukamaju State Junior High School 1. The research employed a Research and Development (R&D) approach based on the ADDIE model, comprising analysis, design, development, implementation, and evaluation stages. The study involved 27 students from class VIII, selected through simple random sampling. Data were collected using expert validation sheets, teacher and student response questionnaires, and student learning outcomes assessments. The results indicated that the developed multimedia met all quality standards: media expert validation (98.5%), material validation (97%), language validation (86%), and video content validation (92%), all categorized as “very valid.” In terms of practicality, teacher and student responses yielded scores of 98% and 84.2%, respectively, indicating high practicality. Regarding effectiveness, student learning outcomes averaged 87.23%, and class completeness reached 81.4%, both falling into the “very effective” category. These findings demonstrate that Android-based science multimedia significantly enhances student engagement and learning outcomes by offering visually rich, interactive, and flexible educational content. The multimedia enables autonomous learning and supports teachers in delivering effective science instruction. Future research is recommended to broaden the content coverage across subjects and to develop applications compatible with online platforms for wider accessibility.
Electronic Structure of Various Shapes of Graphene Quantum Dot Ramli, Irwan; N. Sani; Sukarti; Nurmalasari
Jurnal Sains Materi Indonesia Vol. 27 No. 1 (2025): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2025.8998

Abstract

– We reported our study the electronic structure of graphene in bulk structure and graphene quantum dot (GQD) by density functional theory (DFT) by using in quantum espresso (QE) package. In order simulate the realistic shape of GQD, we set vacuum layer to avoid interaction between quantum dot in the periodic structure in crystal. We examined various shape of quantum dot namely triangular, Hexagon, parallelogram. The band gap is tunable by its shape which open wide application of GQD. We showed that we can tuning the electronic structure of graphene by tuning its structure. In bulk structure, graphene is zero-gap semiconductor. On the other hand, the results on GQD showed the discrete energy level and different shapes of GQD have different energy level and band gap.
Siswa Tangguh Bencana: Penguatan Literasi dan Mitigasi Bencana pada Siswa SMKN 10 Luwu Fitri Jusmi; Irwan Ramli; Rahma Hi Manrulu; Aryadi Nurfalaq; Hilda Rahmawati
Abdimas Singkerru Vol. 6 No. 1 (2026)
Publisher : Akademi Teknologi Industri Dewantara Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59563/singkerru.v6i1.247

Abstract

Kegiatan pengabdian kepada masyarakat ini dilatarbelakangi oleh masih terbatasnya pemahaman dan kesiapsiagaan siswa sekolah menengah terhadap risiko bencana, khususnya dalam hal mitigasi dan tindakan tanggap darurat. Kondisi tersebut menunjukkan pentingnya upaya peningkatan literasi kebencanaan sejak usia sekolah melalui pendekatan yang tidak hanya bersifat teoritis, tetapi juga aplikatif. Tujuan utama kegiatan ini adalah untuk meningkatkan pengetahuan, kesadaran, dan keterampilan siswa dalam menghadapi potensi bencana melalui edukasi, pelatihan teknologi sederhana, dan simulasi praktik evakuasi. Metode pelaksanaan kegiatan dilakukan secara partisipatif melalui tiga tahapan utama, yaitu edukasi kebencanaan dan mitigasi bencana, pelatihan pemanfaatan metode geolistrik, serta simulasi evakuasi bencana. Kegiatan dilaksanakan dalam bentuk penyuluhan interaktif, demonstrasi alat, praktik sederhana, serta simulasi kondisi darurat yang melibatkan siswa secara aktif. Hasil kegiatan menunjukkan adanya peningkatan pemahaman siswa terhadap konsep kebencanaan dan langkah mitigasi yang tepat. Pada kelompok edukasi, siswa mampu mengidentifikasi jenis bencana dan menjelaskan prosedur mitigasi secara lebih baik. Pada kelompok pelatihan geolistrik, siswa menunjukkan pemahaman terhadap prinsip dasar penggunaan alat serta manfaatnya dalam mengidentifikasi kondisi bawah permukaan tanah. Pada kelompok simulasi, siswa mampu mengikuti prosedur evakuasi dengan lebih tertib, terarah, dan menunjukkan kerja sama yang baik. Kegiatan ini juga memberikan manfaat dalam membentuk sikap tanggap bencana, meningkatkan kepercayaan diri siswa, serta mendorong terbentuknya budaya siaga bencana di lingkungan sekolah. Kegiatan ini menunjukkan bahwa integrasi edukasi kebencanaan, pelatihan teknologi sederhana, dan simulasi praktik merupakan pendekatan yang efektif dalam meningkatkan kesiapsiagaan siswa. Keterlibatan aktif siswa dalam seluruh tahapan kegiatan menjadi faktor penting dalam membangun pemahaman yang berkelanjutan dan aplikatif terhadap mitigasi bencana.
Development of an ESP32-Based Resistivity Meter Instrument with Integration of ACS712 Current Sensor, ADS1115 Voltage Sensor and Neo6MV2 GPS Module Aryadi Nurfalaq; Rahma Hi. Manrulub; Irwan Ramli
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 15 No. 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v15n2.p145-158

Abstract

This study aims to develop an ESP32-based resistivity meter instrument integrated with an ACS712 current sensor, an ADS1115 voltage sensor, and a Neo6MV2 GPS model. This IoT-based instrument can be operated remotely so that it can streamline measurements. The method used in this study is the R&D method where this method aims to create innovations in the form of new and applicable products, systems, or models, and test their effectiveness. The research stages start from hardware design assembled based on block diagrams, software design using the Arduino IDE using the C++ programming language, testing and data collection. The results of the study showed that the ADS 1115 sensor has an average measurement error (% error) of 5.1%, the ACS 712 current sensor has an average% error of 3.6%, and the Neo6MV2 GPS module has an average latitude difference of 0.000016 degrees (1.81 m) and longitude of 0.000025 degrees (2.83 m). Measurements can be performed remotely via smartphone using the ESP32 at a distance of 41 m. Comparison of the measurement data from the IoT resistivity meter with a standard resistivity instrument were obtained in the range of 7.771% - 12.815% with an average error of 9.625%. Based on these measurement results, the resistivity values ​​ this indicates that this instrument can be used to identify mined minerals and groundwater aquifers.
Pemberdayaan Kelompok Tani Nilam melalui Produk Turunan Berbasis Teknologi Modern untuk Meningkatkan Pendapatan Petani Khaerati Khaerati; Karmila Karmila; Nurmala Sari Ismail; Irwan Ramli; Hilda Rahmawati
Abdimas Langkanae Vol. 5 No. 2 (2025)
Publisher : Pustaka Digital Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53769/jpm.v5i2.564

Abstract

Minyak nilam (Pogostemon cablin) merupakan komoditas atsiri unggulan Indonesia yang memiliki pangsa pasar global terbesar. Namun, petani di Desa Padang Kamburi, Kecamatan Bua Ponrang, Kabupaten Luwu, Sulawesi Selatan, masih menghadapi kendala pada tahap pascapanen dan pemasaran karena sebagian besar hanya menjual minyak mentah dengan nilai tambah rendah. Kegiatan ini bertujuan untuk memberdayakan kelompok tani nilam melalui pengembangan produk turunan berupa sabun mandi dan parfum menggunakan teknologi modern guna meningkatkan pendapatan. Metode yang digunakan adalah participatory action research dengan tahapan pelatihan teknis, pendampingan produksi, manajemen usaha, dan pemasaran digital. Hasil menunjukkan adanya peningkatan signifikan pada keterampilan produksi, kualitas produk, serta pendapatan petani setelah program dijalankan. Inovasi ini membuktikan bahwa integrasi teknologi modern pada pengolahan produk pertanian dapat memperkuat ekonomi lokal dan meningkatkan kesejahteraan petani.
The Role of On-site Coulumb Interaction on Electronic Structure of FeO: Irwan Ramli, Nirmala Arfa, Rahma Hi Manrulu, Fitri Jusmi Irwan Ramli Irwan Ramli; Nirmala Arfa Nirmala Arfa; Rahma Hi Manrulu Rahma Hi Manrulu; Fitri Jusmi Fitri Jusmi
Jurnal Fisika dan Aplikasinya Vol 18 No 1 (2022): January 2022 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v18i1.8055

Abstract

We report our density functional theory (DFT) calculation on FeO in order to describe its electronic properties. FeO exhibits an antiferromagnetic at the ground state with cubic structure and Neel temperature TN = 198 K. The DFT calculation is as powerful tool to describe electronic properties but known to be failed to describe the electronic properties of system with strong on-site Coulomb interaction such as FeO. Here, we introduce the Hubbard correction, U, in order to take into account the on-site Coulomb interaction of d-electron at Fe ion. Hybridization of 3d-electron of Fe and 2p-electron of O splits the energy level to become upper Hubbard band (UHB) and low Hubbard band (LHB). Based on the DFT+U calculation, the band structure of FeO shows an insulator feature with the band gap of 1.65 eV, and its density of state (DOS) implies that this gap arises from splitting 3d-electron of Fe.
Effect of Pepper Stem Fiber Orientation on Mechanical Properties, Water Absorption, and Biodegradation of Cassava Bioplastic Films Irwan Ramli; Fahri Alfito; Hilda Rahmawati
Journal of Physics and Its Applications Vol 8, No 1 (2026): February 2026
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v8i1.30198

Abstract

Plastic pollution continues to pose a serious environmental challenge due to the persistence of petroleum-based polymers in ecosystems. Starch-based bioplastics offer a biodegradable alternative; however, their practical application is limited by low mechanical strength and high water absorption. This study investigates the effect of pepper stem waste fiber (Piper nigrum) reinforcement and fiber orientation (aligned vs. random) on the mechanical properties, water absorption, and biodegradation behavior of cassava starch films. Bioplastic films were prepared in three formulations: control (without fibers), aligned fiber reinforcement (AFR), and random fiber reinforcement (RFR). Structural and performance evaluations were conducted using X-ray diffraction (XRD), tensile testing, water absorption analysis, and soil burial biodegradation (8 cm depth). XRD patterns confirmed semi-crystalline starch structures with characteristic peaks at 2θ ≈ 17°, 19°, and 22°. Tensile strength increased from 0.6957 MPa (control) to 0.7873 MPa (AFR), corresponding to a 13.2% improvement, indicating enhanced load transfer in aligned fiber structures. Water absorption decreased from 70% (control) to 50% (RFR), showing a 28.6% reduction, likely due to increased tortuosity of water diffusion pathways. Soil burial testing showed rapid degradation, reaching 28.37% mass loss by day 3 and 100% mass loss/disintegration by day 6 under the tested conditions. Overall, pepper stem fibers improve the performance of cassava starch films while maintaining rapid biodegradability, highlighting their potential for environmentally friendly disposable and packaging applications.
Pelatihan Pembuatan Aksesori Resin UV bagi Siswa Kelas XII pada UPT SMAN 2 Luwu, UPT SMAN 8 Luwu Utara, dan UPT SMAN 1 Luwu Timur Irwan Ramli; Yulvinamaesari Yulvinamaesari; Fitri Jusmi; Rahma Hi Manrulu; Hilda Rahmawati; Aryadi Nurfalaq; Hijra Hijra; Ranir Atfar; Fitriani Fitriani; Risma Risma
Abdimas Langkanae Vol. 6 No. 2 (2026)
Publisher : Pustaka Digital Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53769/jpm.v6i2.864

Abstract

Kegiatan Pengabdian kepada Masyarakat (PkM) ini bertujuan meningkatkan pengetahuan, kreativitas, dan keterampilan siswa melalui pelatihan pembuatan aksesori berbahan resin UV serta memperkenalkan penerapan konsep fisika dalam kehidupan sehari-hari. Kegiatan dilaksanakan pada 2, 4, dan 6 Februari 2026 di UPT SMAN 8 Luwu Utara, UPT SMAN 2 Luwu, dan UPT SMAN 1 Luwu Timur dengan melibatkan 107 siswa kelas XII. Metode yang digunakan adalah learning by doing melalui penyampaian materi, demonstrasi, praktik langsung, pendampingan, dan evaluasi post-test. Hasil kegiatan menunjukkan siswa mampu memahami prinsip dasar resin UV dan terlibat aktif dalam pembuatan aksesori sesuai kreativitas masing-masing. Evaluasi menunjukkan peningkatan minat siswa terhadap ilmu Fisika sebesar 25% setelah kegiatan. Kegiatan ini menunjukkan bahwa pemanfaatan resin UV dapat menjadi media pembelajaran yang mengintegrasikan konsep fisika, keterampilan praktis, kreativitas, dan pengenalan peluang kewirausahaan.
Co-Authors Arfa, Nirmala Eva Sohriati Fahri Alfito Fitri Djusmi Fitriani A. Hijra Hijra Hilda Rahmawati Illing, Ilmiati Indah Jaya Jusmi, Fitri Karmila Karmila Khaerati Khaerati Khaerati, Khaerati N. Sani Nirmala Arfa Nirmala Arfa Nurannisa Wahyuni Nurasia Nurfalaq, Aryadi Nurmala Sari Ismail Nurmalasari Nurmalasari, Nurmalasari Rahma Hi Manrulu, Rahma Hi Rahma Hi. Manrulub Ranir Atfar Risda Sucianti Azis Risma Risma Siswahyudianto Sukarti Yulvinamaesari Yulvinamaesari