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All Journal POSITRON JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Fisika FLUX Journal of Physics and Its Applications Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) SERIBU SUNGAI: Journal of Research and Community Service Bulletin of Chemical Reaction Engineering & Catalysis
Suarso, Eka
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Pengembangan Kompetensi Siswa SMAN 2 Banjarbaru Melalui Pembinaan Intensif Olimpiade Sains Nasional (OSN) Suarso, Eka; Ridwan, Ichsan; Nurlina, Nurlina; Sota, Ibrahim; Fahruddin, Fahruddin
Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) Vol 4, No 3 (2025)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/ilung.v4i3.14330

Abstract

AbstrakProgram Studi Fisika FMIPA Universitas Lambung Mangkurat memiliki peran penting dalam meningkatkan pemahaman materi Olimpiade Sains Nasional (OSN) bagi siswa SMAN 2 Banjarbaru. Melalui program kerja sama yang melibatkan dosen dan mahasiswa dengan pihak sekolah, diselenggarakan berbagai kegiatan pendampingan dan pelatihan yang terstruktur. Pendampingan dan pembinaan OSN di SMAN 2 Banjarbaru merupakan upaya strategis untuk meningkatkan kompetensi siswa dalam bidang sains yang dilombakan. Pembinaan ini bertujuan mempersiapkan siswa menghadapi kompetisi OSN di tingkat Provinsi dan nasional dengan memberikan pembelajaran yang lebih mendalam dan terstruktur. Kegiatan ini meliputi pembekalan materi, simulasi soal, dan pelatihan intensif yang berfokus pada topik-topik yang sering diujikan dalam OSN. Melalui seleksi ketat, bimbingan intensif dari para dosen dan ahli, serta dukungan psikologis, siswa dipersiapkan tidak hanya untuk kompetisi, tetapi juga untuk mengembangkan kemampuan berpikir kritis, analitis, dan pemecahan masalah. Hasilnya, para siswa menunjukkan peningkatan yang signifikan dalam pemahaman konsep Sains dan kemampuan analisis soal. Program ini tidak hanya meningkatkan prestasi siswa dalam ajang OSN, tetapi juga membangun kemitraan strategis antara dunia pendidikan menengah dan perguruan tinggi, serta memperkuat kontribusi perguruan tinggi dalam pengembangan pendidikan sains di Kalimantan Selatan. Program pembinaan ini juga diharapkan dapat terus berlanjut dan menjadi fondasi bagi pengembangan kompetensi siswa di masa depan.AbstractThe Physics Study Program of the Faculty of Mathematics and Natural Sciences, Universitas Lambung Mangkurat has an important role in improving the understanding of the National Science Olympiad (OSN) matter for students of SMAN 2 Banjarbaru. Through a collaborative program involving lecturers and students with the school, various structured mentoring and training activities are held. OSN mentoring and coaching at SMAN 2 Banjarbaru is a strategic effort to improve student competence in the science field being competed. This coaching aims to prepare students to face OSN competitions at the provincial and national levels by providing more in-depth, and structured learning. This activity includes providing materials, question simulations, and intensive training that focuses on topics that are often tested in OSN. Through strict selection, intensive guidance from lecturers and experts, and psychological support, students are prepared not only for competition, but also to develop critical thinking, analytical, and problem-solving skills. As a result, students showed significant improvement in understanding of Science concepts and problem analysis skills. This program not only improves student achievement in the OSN event, but also builds strategic partnerships between secondary education and higher education, and strengthens the contribution of higher education in developing science education in South Kalimantan. This coaching program is also expected to continue and become a foundation for developing student competencies in the future.
Screening Support of Bimetallic Ruthenium-Tin Catalysts for Aqueous Phase Hydrogenolysis of Furfuryl Alcohol to 1,5-Pentanediol Rodiansono, Rodiansono; Azzahra, Atina Sabila; Mikrianto, Edi; Ridhoni, Arif; Mustari, Ikhsan; Nurfitriani, Anggita; Bodoi, Thea Seventina Desiani; Sanjaya, Rahmat Eko; Suarso, Eka; Ansyah, Pathur Razi
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 2 Year 2025 (August 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20357

Abstract

The selective aqueous phase hydrogenolysis of furfuryl alcohol (FFalc) to 1,5-pentanediol (1,5-PeD) using supported bimetallic ruthenium-tin (Ru-Sn) catalysts on various metal oxide supports (e.g., TiO2, ZnO, ZrO2, Nb2O5, g-Al2O3) and its combination were investigated systematically. The catalysts were prepared via coprecipitation-hydrothermal at 150 oC for 24 h, followed by reduction with H2 at 400 oC for 2 h. Supported Ru-Sn on TiO2(A), g-Al2O3, and ZrO2 catalysts exhibited higher yield of 1,5-PeD (55-69%) than that other catalysts at 180 oC, H2 10-30 bar for 3-5 h. However, those supported catalysts showed poor recyclability after the first reaction run, and therefore further examination on g-Al2O3 supported Ru-Sn was performed. The Ru-Sn catalyst supported on g-Al2O3-metal oxide composites (metal oxides: ZrO2, TiO2(A), TiO2(R), ZnO, Nb2O5, and C) afforded higher FFalc conversion and yield of 1,5-PeD than that of unmodified g-Al2O3 at 180 oC, H2 30 bar for 3 h. Among them, the Ru-Sn/g-Al2O3-TiO2(A) (33%) catalyst could afford the highest yield of 1,5-PeD (80%) at 99% conversion FFalc at 180 oC, H2 10 bar for 5 h. Around 95% of this catalyst can be recycled after the second reaction run and the activity can be restored to initial after reactivation with H2 at 400 oC for 2 h with a 69% yield of 1,5-PeD at 97% FFalc conversion. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Comparison of Dose Distribution in Proton and Gamma Radiation for Cervical Cancer Using Monte Carlo Simulation Urfa, Gusti Atika; Kartika, Listiana; Fitrianti, Intan; Seftina, Rahmi; Rachman, Rezky Rachmadhany; Wianto, Totok; Sudarningsih, Sudarningsih; Suarso, Eka
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 14 No 1 (2025): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v14i1.25083

Abstract

Precision in radiation dose delivery is critical in cervical cancer treatment to ensure effective tumor control while minimizing damage to surrounding healthy tissues. Given the increasing adoption of advanced radiation therapies, comparative studies on dose distribution between different modalities are essential for evidence-based treatment planning. This study aims to compare the dose absorption in cervical cancer treatment using proton and gamma radiation through Monte Carlo simulation modeling. A Monte Carlo simulation was conducted using the Particle and Heavy Ion Transport code System (PHITS). Proton beams with an energy of 120 MeV and gamma rays at 30 MeV were applied from the anteroposterior (AP) direction using a pencil beam configuration (1 mm × 1 mm). Anatomical data were obtained from Digital Imaging and Communications in Medicine (DICOM) files sourced from RSUD Ulin Banjarmasin. Dose distribution was assessed in the target region and organs at risk (OAR). The results showed that proton therapy delivered a higher absorbed dose to the cervical target area (34.5 ± 1.5 MeV) than gamma radiation (16.7 ± 2.3 MeV). While both conformed to ICRU Report No. 78, gamma radiation resulted in higher doses to nearby organs such as the rectum and bladder, indicating a greater risk of radiation-induced side effects. Proton therapy offers more targeted dose delivery with reduced exposure to surrounding organs, making it a potentially safer and more effective modality for cervical cancer treatment. These findings underscore the importance of modality selection in optimizing therapeutic outcomes and minimizing complications in radiotherapy.
Co-Authors Ayu, Futri Azzahra, Atina Sabila Bodoi, Thea Seventina Desiani Darminto . Edi Mikrianto Fahruddin Fahruddin Farisa, Ulya Fitriana, Syifa Ginanjar, Awal Gusti Atika Urfa Hasbullah Hasbullah Ibrahim Sota Ichsan Ridwan Ida Ayu Putu Sri Widnyani Intan Fitrianti, Intan Kartika, Listiana Khalis, Raida Salsabila Kosidahrta, Rachmat Manik, Tetti N. Manik, Tetti Novalina Margareta Margareta, Margareta Munir, M. Jiddan Mishbahul Mustari, Ikhsan Ninis Hadi Haryanti, Ninis Hadi Nur Hazizah Nurfitriani, Anggita Nurlina Nurlina Pathur Razi Ansyah Rachman, Rezky Rachmadhany Rahmat Eko Sanjaya Ridhoni, Arif Rodiansono Rodiansono Sari, Putri Seftina, Rahmi Sri Cahyo Wahyono Sudarningsih Sudarningsih Suryajaya Suryajaya Suryajaya Suryajaya, Suryajaya Taufik Hidayat Tetti Novalina Manik Totok Wianto