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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) IAES International Journal of Robotics and Automation (IJRA) International Journal of Applied Power Engineering (IJAPE) Jurnal Penelitian Saintek AQUATIC SCIENCE & MANAGEMENT Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Jurnal Pendidikan IPA Indonesia JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Teknologi Informasi dan Ilmu Komputer JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Edufisika: Jurnal Pendidikan Fisika IJIET (International Journal of Indonesian Education and Teaching) Jurnal Ilmiah Pendidikan Fisika PENDIPA Journal of Science Education COMPTON: Jurnal Ilmiah Pendidikan Fisika JPBIO (Jurnal Pendidikan Biologi) PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Kasuari: Physics Education Journal (KPEJ) Silampari Jurnal Pendidikan Ilmu Fisika Jurnal Paedagogy Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Bioscientist : Jurnal Ilmiah Biologi Prima Abdika: Jurnal Pengabdian Masyarakat Darmabakti: Jurnal Inovasi Pengabdian dalam Penerbangan Jurnal Inovasi Pengabdian Masyarakat Pendidikan East Asian Journal of Multidisciplinary Research (EAJMR) IJOEM: Indonesian Journal of Elearning and Multimedia Finger : Jurnal Ilmiah Teknologi Pendidikan Amplitudo: Jurnal Ilmu dan Pembelajaran Fisika Aktual : Jurnal Pengabdian Kepada Masyarakat Jurnal Pendidikan MIPA IJIS Edu : Indonesian Journal of Integrated Science Education
Mayub, Afrizal
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Transportation Other

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Potensi Biomassa Pohon dan Emisi Karbondioksida Untuk Menilai Keseimbangan Karbon di Lingkungan Wahyuningsih, Endah Tri; Karyadi, Bhakti; Wardana, Rendy Wikrama; Nursa’adah, Euis; Mayub, Afrizal
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.16620

Abstract

This study aims to analyze carbon emissions from motor vehicles and the potential for carbon absorption by vegetation on four main roads in Bengkulu City: Padang Jati, Hibrida, Pagar Dewa, and Sukarami. The approach used is quantitative-descriptive, with data collected through traffic surveys and direct measurements of vegetation parameters during the observation period. Emissions are calculated using emission factors based on IPCC/KLHK standards according to vehicle type, while tree biomass is analyzed using allometric equations based on trunk diameter, track length, and vegetation type. Carbon analysis on four roads in Bengkulu City shows a significant imbalance between vehicle emissions and vegetation absorption. Sukarami recorded the highest emissions (751,813 kg CO₂) with a biomass of only 24,053 kg (absorption of 40,607 kg), making it a carbon source. Conversely, Padang Jati had the largest biomass (881,578 kg) compared to emissions of 431,889 kg CO₂, making it a carbon sink with absorption of 344%. Hibrida and Pagar Dewa showed intermediate conditions, with emissions of 424,145–570,063 kg CO₂ and absorption of 544,349–947 kg, indicating an unbalanced absorption capacity. These results emphasize the need to increase vegetation cover and manage green spaces as strategies for mitigating urban climate change.
The effect of salung leaf extract (Psychotria viridiflora) on blood glucose levels in mice Dara, Niki Dwi Dia; Ruyani, Aceng; Wardana, Rendy Wikrama; Mayub, Afrizal; Karyadi, Bhakti
Jurnal Penelitian Saintek Vol 30, No 2 (2025)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jps.v30i2.87757

Abstract

This research is crucial in the context of the rising global prevalence of diabetes, a metabolic disorder that significantly affects public health. This study aims to determine the effect of salung leaf extract (Psychotria viridiflora) on blood glucose levels in hyperglycemic mice (Mus musculus). The study used 25 mice (Mus musculus) weighing 20-40 grams, divided into 5 treatment groups (P). Each group consisted of 5 mice, including a negative control, positive control, and three experimental groups with the administration of P. viridiflora extract at various doses (0.0112; 0.0225; and 0.0337 g/kgBW). Blood glucose measurements were conducted four times, on days 0, 6, 12, and 18, which included an initial glucose measurement, post-alloxan induction, and subsequent measurements after treatment. Among the three tested doses, the highest dose (0.0337 g/kg BW) proved to be the most effective in reducing blood sugar levels in alloxan-induced M. musculus, with effectiveness comparable to the standard drug Glibenclamide. Thus, the extract of P. viridiflora leaves shows strong potential as an alternative herbal antidiabetic therapy for M. musculus.
Integration of the Pyrolysis Context with the Heat Module to Improve Students' Mastery of Concepts Nofita, Inka; Mayub, Afrizal; Johan, Henny
Kasuari: Physics Education Journal (KPEJ) Vol. 8 No. 2 (2025): December 2025
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v8i2.923

Abstract

The energy crisis due to declining fossil fuel reserves and the increase in organic waste, such as coffee husk waste in Kepahiang Regency, has prompted the need for renewable energy-based solutions. This research aims to develop a science learning module based on the local context through the integration of the concept of pyrolysis of coffee husk waste in the heat and its displacement material. The research method uses the ADDIE model until the validation stage. Data were collected through needs questionnaires and expert validation sheets, analyzed descriptively. The results showed the low interest and understanding of students in the caloric material, as well as the dominance of textual learning methods without direct practice. Most students stated the need for modules that are visual, contextual, and easy to understand. The modules developed are declared valid by experts from the material, linguistic, and graphic aspects. In conclusion, the integrated heat module for coffee skin waste pyrolysis is considered feasible as an innovative teaching material on the concept of heat contextually and applicatively.
Development of Alternative Energy-Based Temperature and Heat Module of Wood Waste Charcoal for Science Literacy Triyanti, Dwi Erni; Mayub, Afrizal; Nursa’adah, Euis
Kasuari: Physics Education Journal (KPEJ) Vol. 8 No. 2 (2025): December 2025
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v8i2.987

Abstract

The low science literacy of students, especially in understanding temperature and heat materials, is a challenge in learning physics in schools. This material is often delivered theoretically without being associated with real life, so students have difficulty understanding concepts in their entirety. This research aims to develop a physics learning module on alternative energy-based temperature and heat materials from charcoal from wood and onion wood waste to improve students' science literacy. The research uses a 4D development model that is limited to the Define, Design, and Develop stages. The Define stage  includes curriculum analysis, identification of student learning difficulties, and exploration of local potential. The Design Stage  produces a contextual module design based on science literacy. At the Develop stage, the modules are validated by experts with results: 90% content aspect, 86% linguistics, and 95% presentation, with an average of 90% indicating the "Feasible" category. The module is considered to have high potential to support contextual learning and improve understanding of the concept of temperature and heat. Thus, this module is worthy of further testing to students in physics learning.
Design of Integrated Science Electronic Book Temperature and Heat Material Loaded with Ethnoscience Batik Besurek Bengkulu Triana, Dini Fajar; Sutarno, Sutarno; Karyadi, Bhakti; Mahardiani, Lina; Mayub, Afrizal
Jurnal Ilmiah Pendidikan Fisika Vol 9, No 2 (2025): JUNE 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jipf.v9i2.15298

Abstract

Science learning in schools tends to be theoretical and less related to real contexts, so students have difficulty understanding the application of concepts in everyday life. One of the causes is the lack of teaching materials that integrate local wisdom. This study aims to examine the concepts of science in the local wisdom of making Batik Besurek to be developed as ethnoscience content in integrated science e-books and to determine the level of validity and student response to the product. The method used is research and development (R&D), according to Borg and Gall (1983), using the Model of Educational Reconstruction (MER) approach. Data were obtained through questionnaires, observations, and interviews. The results of the study showed that the process of making Batik Besurek contains the concepts of temperature and heat, expansion, changes in the state of matter, physical changes, heat transfer, and Black's principle, which can be integrated into the content of the Integrated Science Electronic Book. The developed electronic book obtained a very high level of validity with an average V index of 0.86 and a percent agreement of 89.27%. The students' response to the book was also excellent, with an average percentage of 89.42%. The results concluded that the Integrated Science electronic book containing the ethnoscience of Batik Besurek Bengkulu was considered valid teaching material worthy of being tested for effectiveness in future research.
Praktik Pembuatan Ekoenzim dalam Upaya Menstimulus Pengetahuan dan Peduli Lingkungan pada Siswa SMP: Practice of Making Ecosenzymes In an Effort to Stimulate Environmental Knowledge and Care for Students of SMP Karyadi, Bhakti; Ruyani, Aceng; Mayub, Afrizal; Parlindungan, Deni; Prayogo, Bambang
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 11 No. Suppl-1 (2026): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v11iSuppl-1.9259

Abstract

This community service aims to equip students and teachers of SMP IT Khoiru Ummah Rejang Lebong with knowledge about managing school gardens using household waste through ecoenzymes, natural boosters, and POC. This school has a large area of underutilized land, especially for organic waste management. Household waste is not managed correctly, and most of it is disposed of in landfills, even though it can be processed into valuable products. Converting organic waste into eco-enzymes is expected to reduce waste and create a greener, more environmentally friendly school ecosystem. This training was carried out from April to December 2024, by using the Participatory Action Research (PAR) method, divided into three stages: exploration, provision of materials and practice, and evaluation. The evaluation's student response data show that around 61% of students demonstrated excellent knowledge, 30% good, and 9% sufficient. The level of concern for the environment was very high. The success of this activity was measured by the level of participation and enthusiasm among participants, which reflected the objectives of community service: increasing awareness and skills in waste management. Further evaluation is needed to assess the long-term impacts and to determine how this activity can be implemented outside of school, thereby providing benefits to the surrounding community.
Analisis Ketinggian Gelombang dan Kecepatan Angin Perairan Pesisir Bengkulu Najwa, Farah Aulia; Johan, Henny; Defianti, Aprina; Mayub, Afrizal; Hakim, Lukmanul
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 1 (2026): Februari
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i1.1402

Abstract

The purpose of this study is to describe wave height and wind speed in Bengkulu City over the last five years (2019–2024). This research employed a quantitative descriptive method. The data collection technique used secondary data obtained from documentation of the Meteorological, Climatological, and Geophysical Agency (BMKG) of Bengkulu Province. The data were analyzed using descriptive statistical analysis techniques. The results indicate that wave height and wind speed along the coastal waters of Bengkulu City varied significantly from January to December during the years 2019, 2020, 2021, 2022, 2023, and 2024. The months with the highest potential for high waves were June, July, August, and September, with an average wave height of 3.5–4 meters and wind speeds of 20–25 knots. The lowest and moderate waves occurred in January, February, March, April, May, October, November, and December, with wave heights ranging from 1.5–3.5 meters and wind speeds of 6–15 knots.
Co-Authors Abdul Rahim, Suzieleez Syrene ACENG RUYANI Akbar Agustian, Muhammad Aniliawati, Ur Anugrah, Pinto Arsela Eko Listiono Bambang Prayogo, Bambang BHAKTI KARYADI Bramastia Budi Bayu Murti Budiyanto, Ma’un Dara, Niki Dwi Dia Deddy Bakhtiar, Deddy Dedy Hamdani Defianti, Aprina Delima, Ega Marita Dewi , Deshinta Arrova Eko Risdianto Elsi Adelia Fitri Esra, Gracia Fahmizal, Fahmizal Farid, Muchammad Firdaus, M. Lutfhi Firdaus, Mochamad Lutfi Fitri April Yanti, Fitri April Funny Farady Coastera, Funny Farady Galih Setyawan Handayani, Rinda Fitri Henny Johan Herawati, Asmida Hidayat Nur Isnianto Iskandar, Aiza Sabina Putri Khamis, Noorzana Laberta, Tinu Lazfihma, Lazfihma Lia Anggraini Lina Mahardiani Lukmanul Hakim M. Farid, M. M. Lutfi Firdaus, M. Lutfi Maghfiroh, Hari Malau, Defi Dormasi Maulana, Yudi Maun Budiyanto, Maun Muhammad Arrofiq Najwa, Farah Aulia Nirwana, Nirwana Nofita, Inka Noni Noviana Nurcahyani Nurhamidah Nursa'adah, Euis Nursaadah, Euis Nursa’adah, Euis Nutriastuti, Putri Orlando, Tommy Richard Parlindungan, Deni Pistira, Pistira PRATAMA, DONNY BUDI Pratikno, Matthew Sebastian Pratiwi, Revika Julia Purwaningsih Rijalussalam, Dhiya Uddin Riska, Dara Ronald Adrian, Ronald Silaban, Sintiana Sudirman Sudirman Sutarno Sutarno SYAHRONI, IVAN Triana, Dini Fajar Triyanti, Dwi Erni Uliyandari, Mellyta Umaya Umaya, Umaya Wahyuningsih, Endah Tri Wardana, Rendy Wikrama wati, Devica Wikrama Whardana, Rendy Wirahayu, Maya