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All Journal Jurnal Tarbiyah : Jurnal Ilmiah Kependidikan Gravitasi: Jurnal Pendidikan Fisika dan Sains Jurnal Energi Baru dan Terbarukan BULETIN FISIKA Jurnal Biologi Udayana
Hangga Novian Adi Putra
Universitas Udayana
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Physics

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From Hombo Batu to the Realm of Physics: Implementation of Ethnophysics-Based Mobile Learning to Increase Learning Independence and Learning Outcomes Dwi Saputra, M. Reza; Niethammer, Manuela; Adi Putra, Hangga Novian
Tarbiyah : Jurnal Ilmiah Kependidikan Vol. 13 No. 2 (2024): December
Publisher : Universitas Islam Negeri Antasari Banjarmasin, South Kalimantan, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18592/tarbiyah.v13i2.13940

Abstract

This study examines the effectiveness of Ethnophysics-based mobile learning (Hombo Batu) in enhancing students' learning independence and outcomes. This research is quantitative, employing a pretest-posttest control group design. The research sample consists of 23 students from class XIc as the control group, who received instruction using PowerPoint media, and 23 students from class XId as the experimental group, who received instruction using Ethno-Based Mobile Learning media. The study was conducted at Xin Zhong High School in Surabaya. The research instruments include learning outcome tests (pretest and posttest) and non-test instruments (learning independence questionnaires). The data analysis includes N-Gain analysis and Hotelling's Trace Multivariate Test (MANOVA). The results of the study indicate that learning with Ethno-Based Mobile Learning is more effective in enhancing learning independence compared to learning using PowerPoint, with an N-Gain value of 0.74 for learning independence and 0.79 for learning outcomes, as well as Hotelling's Trace results with a significance value of 0.00 (Ha accepted). The implication of using Ethno-Based Mobile Learning as a learning medium is that it can be utilized by Physics teachers to enhance students' learning independence and learning outcomes.
Pendekatan baru pada identifikasi patogen tanaman berbasis DNA: Suatu Kajian Pustaka Widya Esti Purwaningtyas; Siti Sholekha; Hangga Novian Adi Putra
Jurnal Biologi Udayana Vol. 29 No. 2 (2025): JURNAL BIOLOGI UDAYANA
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBIOUNUD.2025.v29.i02.p06

Abstract

Patogen tanaman merupakan salah satu faktor utama penyebab penurunan produktivitas pertanian dan kerugian ekonomi yang signifikan di berbagai sistem budidaya. Identifikasi patogen secara cepat dan akurat menjadi langkah penting dalam pengendalian penyakit tanaman, khususnya untuk mendukung kegiatan karantina, pemantauan penyakit, serta penentuan strategi pengelolaan yang tepat. Metode diagnosis konvensional yang bergantung pada pengamatan gejala, isolasi, dan kultur patogen umumnya memerlukan waktu relatif lama dan bergantung pada keahlian peneliti, sehingga berisiko menimbulkan kesalahan identifikasi, terutama pada tahap awal infeksi ketika gejala belum berkembang secara spesifik. Perkembangan teknologi molekuler mendorong penggunaan pendekatan identifikasi berbasis DNA yang menawarkan sensitivitas dan spesifisitas lebih tinggi dibandingkan metode konvensional. Tinjauan ini membahas berbagai metode identifikasi patogen tanaman berbasis DNA, meliputi teknik polymerase chain reaction (PCR) dan turunannya, seperti nested PCR, multiplex PCR, quantitative PCR (qPCR), nano-PCR, dan droplet digital PCR (ddPCR), serta metode amplifikasi isotermal seperti loop-mediated isothermal amplification (LAMP), recombinase polymerase amplification (RPA), dan nucleic acid sequence-based amplification (NASBA). Teknologi lanjutan seperti next-generation sequencing (NGS) dan sistem CRISPR/Cas juga dikaji berdasarkan prinsip kerja dan potensi penerapannya dalam diagnosis patogen tanaman. Hasil tinjauan menunjukkan bahwa setiap metode memiliki keunggulan yang berbeda, di mana qPCR dan ddPCR unggul dalam sensitivitas dan presisi untuk deteksi target berkonsentrasi rendah, LAMP dan RPA menawarkan kecepatan analisis serta kemudahan aplikasi di lapangan, sementara NGS dan CRISPR/Cas memberikan resolusi tinggi untuk deteksi komprehensif dan diagnosis dengan spesifisitas sangat tinggi. Tinjauan ini menekankan pentingnya pengembangan metode diagnostik berbasis DNA yang efisien dan aplikatif untuk mendukung pengelolaan penyakit tanaman dan sistem pertanian berkelanjutan.
Towards Bali's Energy Independence: Potential and Challenges in Developing Renewable Energy Power Plants Putu Gede Agus Krisna Yogantara; Freygieon Ogiek Rizal Sukma; Hangga Novian Adi Putra
Jurnal Energi Baru dan Terbarukan Vol 7, No 2 (2026): Mei 2026
Publisher : Program Studi Magister Energi, Sekolah Pascasarjana, Universitas Diponegoro, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jebt.2026.31379

Abstract

The use of electricity on the island of Bali currently still relies heavily on supply from the island of Java, with most of the electricity coming from fossil-based power plants. In reality, Bali has quite abundant potential for new and renewable energy (NRE) both on land and at sea. This research aims to comprehensively review the technical potential of various NRE sources in Bali along with the challenges of their implementation, as well as to formulate scenarios for the development of integrated power plants toward energy independence. Based on a synthesis of recent literature studies and policy data, Bali has a technical NRE potential of up to 22 GW, with solar power being the most strategic short term option through the development of rooftop solar power plants of up to 2.7 GW by 2034. However, this review also identifies that in reality, achieving this potential is still far from the expected target, as the distribution of new NRE use only reached 1.48% in 2023. The critical challenges identified include socio-cultural conflicts such as the geothermal project in Bedugul, past failures of communal wind projects, inconsistent policies that still prioritize gas-fired power plants, as well as regulatory barriers that limit private sector investment. As a solution, a scenario is proposed for the development of integrated power plants in five strategic locations in Bali, along with policy recommendations to accelerate the energy transition, including reforms of electricity trade regulations, incentives for renewable energy investments, and the resolution of socio-cultural conflicts through a participatory multi-stakeholder approach.
Pemetaan Daerah Rawan Gempa Bumi di Pulau Nias Berdasarkan Nilai Peak Ground Acceleration (PGA) Hangga Novian Adi Putra
Jurnal Pendidikan Fisika dan Sains Vol 9 No 01 (2026): GRAVITASI: JURNAL PENDIDIKAN FISIKA DAN SAINS
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/gravitasi.jpfs.v9i01.13438

Abstract

Pulau Nias merupakan salah satu kepulauan kecil yang rawan terhadapat bencana gempa bumi. Pulau Nias terletak di bagian Barat Provinsi Sumatera Utara. Pulau Nias terdiri atas lima wilayah administrasi, yaitu Kabupaten Nias, Nias Utara, Nias Barat, Nias Selatan, dan Kota Gunungsitoli. Penelitian ini dilakukan untuk memetakan daerah rawan gempa bumi wilayah Pulau Nias menggunakan persamaan atenuasi yang dikembangkan oleh Youngs. Penelitian ini menggunakan 71 data gempa yang terjadi di sekitar Pulau Nias dan sekitranya dalam rentang waktu antara tahun 1990 sampai tahun 2025. Data gempa yang digunakan adalah data gempa yang memiliki magnitudo 5,5 Mw ke atas, serta kedalaman gempa kurang dari 50 km. Berdasarkan analisis rawan bencana di Pulau Nias didapatkan daerah yang mempunyai tingkat kerawanan bencana gempa bumi tertinggi adalah Nias Utara dan Kota Gunungsitoli yang memiliki nilai PGA dari 210 gal sampai 260 gal dan skala MMI VII. Daerah yang memiliki kerawanan gempa bumi tingkat menengah adalah daerah sebagian Nias Utara, Kota Gunungsitoli, Nias Barat, dan sebagian dari Nias yang memiliki nilai PGA dari 170 gal – 210 gal dan skala MMI VI dan VII. Sedangkan daerah yang memiliki tingkat kerawanan bencana gempa bumi terendah adalah sebagian Nias dan hampir keseluruhan dari daerah Nias Selatan yang memiliki nilai PGA dari 120 gal sampai 160 gal dan skala MMI VI. Hasil penelitian menunjukkan bahwa Pulau Nias termasuk dalam zona bahaya gempa bumi tingkat menengah.
Analysis of Earthquake Hazard-Prone Areas Using Peak Ground Acceleration (PGA) Values in Enggano Island, Bengkulu Hangga Novian Adi Putra
BULETIN FISIKA Vol. 27 No. 1 (2026): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2026.v27.i01.p09

Abstract

Enggano Island is one of the oceanic islands located on the outermost edge of Bengkulu Province, which makes it highly vulnerable to tectonic earthquake hazards. This study aims to analyze the level of earthquake hazard vulnerability in the Enggano Island region of Bengkulu Province by utilizing Peak Ground Acceleration (PGA) values as the main indicator for assessing earthquake hazard potential. This study was conducted using 37 earthquake events data that occurred in the vicinity of Enggano Island within the time span from 1990 to 2025. The earthquake data used in this analysis focused on events with a magnitude of 4 Mw or higher and depth less than 50 km. Based on the disaster vulnerability analysis in the Enggano Island area, the regions with the highest earthquake hazard levels are Banjar Sari, Meok, Malakoni, and also a portion of Apoho, which have a PGA range of 106 gal to 114 gal and VI MMI scale. The moderate hazard levels are upper parts of Banjar Sari, Meok, Apoho, and Malakoni, as well as the southern portions of Kaana and Kahyapu, which have a PGA range of 94 gal to 104 gal and VI MMI scale. In contrast, the areas with lower hazard levels are found in the northern parts of Kaana and Kahyapu, where the PGA ranges from 78 to 92 gal and corresponds to intensity level V on the MMI scale. This study indicates that Enggano Island falls within a moderate earthquake hazard category.
Evaluation of Oxide Layer Thickness (ZnO, Al₂O₃, BaTiO₃, TiO₂) as an Interlayer and Sensitive layer in SPR Sensors Freygieon Ogiek Rizal Sukma; I Made Satriya Wibawa; Hangga Novian Adi Putra; Putu Gede Agus Krisna Yogantara
BULETIN FISIKA Vol. 27 No. 1 (2026): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2026.v27.i01.p013

Abstract

Numerical simulation of a Surface Plasmon Resonance (SPR) sensor was carried out using COMSOL Multiphysics 5.5 based on the Finite Element Method (FEM) to evaluate detection performance influenced by oxide type and thickness acting as interlayer and sensitive layer. The sensor configuration employs silver (Ag) as the plasmonic metal, while ZnO, Al₂O₃, BaTiO₃, and TiO₂ are considered as oxide materials. The presence of an oxide layer with a certain thickness gives different resonance curve characteristics due to changes in the resulting plasmonic coupling. In this study, BaTiO₃ with a thickness of 40 nm obtained the optimum condition with a minimum FWHM value, accompanied by high FOM value of around 107.75 RIU⁻¹. Meanwhile, the use of oxide materials as sensitive layers causes a shift of the resonance angle toward higher values with increasing refractive index and thickness, resulting in enhanced angular sensitivity. However, this improvement is accompanied by a broadening of the FWHM, indicating increased plasmon damping associated with the sensitive layer. Among the evaluated configurations, the BaTiO₃ (40 nm)/Ag (50 nm)/Al₂O₃ (10 nm) structure exhibits the lowest minimum reflectance and a FOM of 91.35 RIU⁻¹. Despite a marginal reduction in the FOM, the sensitivity attains about 150°/RIU, exceeding that of the configuration without a sensitive layer (120°/RIU). Field profile reveals reduced penetration depth, indicating surface-confined electromagnetic fields beneficial for gas sensing. This study provides insight into the dual role of oxide layers as interlayers and sensitive layers for optimizing electromagnetic confinement, sensitivity, and design strategy for SPR-based gas sensing platforms.
Co-Authors Dwi Saputra, M. Reza Freygieon Ogiek Rizal Sukma I Made Satriya Wibawa Niethammer, Manuela Putu Gede Agus Krisna Yogantara Putu Gede Agus Krisna Yogantara Siti Sholekha Sukma, Freygieon Ogiek Rizal Wahyudi Wahyudi Widya Esti Purwaningtyas