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PENDIPA Journal of Science Education
Published by Universitas Bengkulu
ISSN : 20869363     EISSN : 26229307     DOI : -
Core Subject : Science, Education,
Chemistry Education Mathematics
PENDIPA Journal of Science Education is a peer-reviewed, open-access journal covered all aspect of science and science education. PENDIPA journal welcomes the submission of scientific articles related to mathematics, physics, chemistry, biology, and its educational implementation in a school, higher education and other educational institution. We encourage scientist, lecturer, teacher and student to submit their original paper to the journal. PENDIPA journal is published by Graduate School of Science Education - University of Bengkulu, three times a year on February, June and October
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Articles 45 Documents
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Search results for , issue "Vol 9 No 3 (2025): October" : 45 Documents clear
Penanganan Dampak Abu Vulkanik Letusan Gunung Lewotobi Terhadap Operasi Penerbangan Fitria, Rosi; Asep Adang Supriyadi; Syachrul Arief; Dangan Waluyo
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.813-825

Abstract

Volcanic ash poses a serious threat to aviation due to its abrasive nature and its tendency to melt at high temperatures, as evidenced by the 1982 British Airways incident at Mount Galunggung. The eruption of Mount Lewotobi from November 7 to 18, 2024, caused ash dispersion that disrupted operations at 13 airports, resulting in the cancellation of hundreds of domestic flights and dozens of international flights. This study employs a qualitative descriptive method, utilizing secondary data, to evaluate how the impacts of the eruption on aviation were managed. The results show that the response was carried out effectively in accordance with Regulation No. PM 95 of 2018, with no serious incidents reported. This was achieved through coordinated dissemination of VONA, VAA, and SIGMET reports, as well as the issuance of ASHTAM and NOTAM. Recommendations are focused on enhancing coordination, strengthening monitoring, and updating aviation operational procedures.
Perapuhan Uranium dengan Metode Hydride–Dehydride: Meningkatkan Efisiensi Bahan Bakar Nuklir dalam Mendukung Transisi Energi Sakina, Zafira Naja; Ardyanto, Fakhriyan; Supriyadi, Imam; Santoso, Budi
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.836-843

Abstract

The Hydride–Dehydride (HDH) method is a critical technology in uranium processing, capable of improving the efficiency and quality of nuclear fuel through a more precise embrittlement process compared to conventional techniques. This technology ensures uniform particle size and minimizes material loss during fabrication. This study was conducted using a literature review approach, supported by experimental data obtained during a 2022 internship at the Research Center for Nuclear Fuel Cycle and Radioactive Waste Technology (PRTDBBLNR). The focus of the investigation was the characterization of uranium–molybdenum (U-Mo) alloy before and after the HDH treatment process. The results indicate that heat treatment at 500 °C for 5 hours followed by annealing significantly increases the hardness of the U-Mo alloy. A phase transformation was also observed, indicated by the presence of α-U in all post-treatment samples. Nevertheless, the density of the alloy showed no substantial change. The HDH process successfully produced high-purity U-Mo powder at various molybdenum concentration levels. However, increasing Mo content resulted in lower powder density. The morphology of U-7Mo powder exhibited flake-like shapes with a rough surface, which is favorable for further fabrication in advanced fuel element production. Overall, these findings reinforce the relevance and significant potential of HDH technology in supporting advanced nuclear reactor fuel production and strengthening national nuclear energy security in a sustainable manner.The Hydride–Dehydride (HDH) method represents an important innovation in uranium processing to improve the efficiency and quality of nuclear fuel. This technology enables a more precise embrittlement of uranium compared to conventional methods such as milling and crushing, resulting in more uniform particle size and reduced material loss throughout the process. This study adopts a literature-based approach supported by practical work conducted at the Center for Research on Nuclear Fuel Cycle Technology and Radioactive Waste Management (PRTDBBLNR) in 2022, in order to evaluate the effectiveness of HDH in strengthening nuclear energy security in Indonesia. The analysis shows that HDH improves the microstructural quality of uranium and enhances processing yield by minimizing waste generation. These advantages highlight the high relevance of HDH technology in supporting the development of Generation IV nuclear reactors, which emphasize efficiency and sustainability within the fuel cycle. However, its implementation in Indonesia still faces challenges, particularly in terms of industrial infrastructure readiness, safety regulations, and nuclear material protection. Therefore, strategic policies are required to promote further research and technological investment, as well as strong collaboration between academia, government, and industry. Integrating HDH into the national uranium processing roadmap has the potential to establish this technology as a key pillar in ensuring a sustainable nuclear fuel supply and enhancing Indonesia’s energy security in the future.
Pengaruh Kombinasi Ekstrak Daun Serai Wangi (Cymbopogon nardus) dan Daun Jambu Air (Syzygium samarangense) terhadap Intensitas Serangan Serangga Hama pada Tanaman Tomat Ceri (Solanum lycopersicum) Christin, Winda Agata; Lumowa, Sonja Vera Tineke; Akhmad; Nasution, Ruqoyyah
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.807-812

Abstract

Serangan serangga hama merupakan salah satu faktor penyebab rendahnya produktivitas tomat ceri. Penggunaan pestisida sintetis memang efektif, namun memiliki dampak negatif terhadap lingkungan dan kesehatan manusia. Penelitian ini bertujuan untuk menganalisis pengaruh kombinasi ekstrak daun serai wangi dan daun jambu air terhadap intensitas serangan serangga hama pada tanaman tomat ceri serta menentukan konsentrasi paling efektif. Penelitian menggunakan rancangan acak lengkap (RAL) dengan lima perlakuan (kontrol, 30%, 45%, 60%, dan 75%) dan lima ulangan. Pengamatan dilakukan pada 12, 19, 26, 33, 40, dan 47 hari setelah tanam (HST). Hasil menunjukkan bahwa kombinasi ekstrak kedua tanaman berpengaruh signifikan dalam menekan serangan hama. Perlakuan 75% merupakan konsentrasi paling efektif dengan intensitas serangan hama terendah pada seluruh periode pengamatan. Dengan demikian, kombinasi ekstrak daun serai wangi dan jambu air dapat digunakan sebagai alternatif pestisida nabati ramah lingkungan.
Pengaruh Edukasi Bahan dan Urgensi Penekanan Waktu terhadap Keputusan Pembelian Skincare "Sofia Skin Solution" pada Live Commerce dimediasi Perceived Value Shofiyah; Prasetiyo, Andri; Ahmar, Nurmala; Wirabrata, I Gede Made
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.826-835

Abstract

Live streaming is changing the digital marketing landscape, especially in the skincare industry. This research aims to examine the influence of ingredients education and time pressure on consumer purchasing decisions on “Sofia Skin Solution” products, with perceived value as a mediating variable. The research was conducted with a quantitative approach through a survey of 200 respondents active in the live streaming session. Data were analyzed using Structural Equation Modeling (SEM) based on Partial Least Squares (PLS). Results showed that ingredient education positively influenced perceived value (T-value = 6.104; p = 0.000), as did time pressure (T-value = 6.339; p = 0.000), with time pressure showing a slightly more dominant influence. Perceived value alone exerted the strongest influence on purchasing decisions (T-value = 5.512; p = 0.000), and was shown to fully mediate the relationship between ingredient education and purchasing decisions, as well as partially mediating the influence of time pressure on purchasing decisions. The direct effect of content education on purchasing decisions is not statistically significant, but is at the threshold, which crucially indicates the role of other factors such as brand image and host credibility. Findings confirm the importance of live streaming scripts that balance concise product information with short promotions to build trust and enthusiasm. Managerial implications suggest companies design short ingredient demonstrations followed by short offers to maximize conversions on live commerce platforms.
Pengembangan Bahan Ajar e-Book Berbasis Science, Environment, Technology, Society (SETS) Terintegrasi Kearifan Lokal Untuk Menunjang Kemampuan Pemecahan Masalah Peserta Didik Nazilah, Eneng; Alamsyah, Trian Pamungkas; Suryani, Dwi Indah
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.844-852

Abstract

To improve the problem-solving skills of junior high school students, this study developed teaching materials in the form of e-Books based on the Science, Environment, Technology, and Society (SETS) approach. This approach was integrated with Banten local wisdom on the material of Elements, Compounds, and Mixtures. The development process was carried out using the ADDIE model which has five phases, namely Analyze, Design, Development, Implementation, and Evaluation. The quality of the e-Book was calculated through a validation process carried out by material experts, teaching material experts, and practitioners, while limited trials were carried out with students using a response questionnaire. The validation results proved that the e-Book had a "very valid" level of validity with a score of 90.90% in terms of content, appearance, presentation, and relevance to local wisdom. Meanwhile, student responses showed a "very positive" response with a percentage of 88.34%. This shows that the SETS-based e-Book integrated with local wisdom is worthy of being used as an alternative innovative teaching material in an effort to support students' problem-solving skills.
Efikasi Antibakteri; Staphylococ pengembangan e-modul mikrobiologi berbasis penelitian pemanfaatan kulit buah kabau sebagai antibakteri untuk meningkatkan keterampilan berpikir kritis mahasiswa Sitorus, Lizken; Sipriyadi; Nursa’adah, Euis
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.861-865

Abstract

The bark of the traditional plant, Archidendron bubalinum, known locally as kabau, exhibits promising qualities as a natural antibacterial agent. This research was conducted with two main objectives: (1) to evaluate the antibacterial efficacy of kabau fruit peel extract against two common pathogenic bacteria, Staphylococcus aureus and Escherichia coli, and (2) to design, validate, and assess the effectiveness of a research-based Microbiology E-Module in fostering students' critical analytical skills. The antibacterial capacity was tested using the paper disc diffusion method across a range of extract concentrations (5%, 10%, 20%, 40%, and 80%), using both pure water (aquades) and 2% dimethyl sulfoxide as carriers. Statistical analysis (one-way ANOVA, p = 0.020 < 0.05) indicated a notable difference in the zone of inhibition diameter across the various concentrations. The most potent antibacterial effect was observed at the 80% concentration with the aquades solvent, yielding inhibition zones of 3.97 mm against S. aureus and 8.42 mm against E. coli. These empirical results served as the core content for the innovative E-Module. The developed E-Module attained a high level of validity, achieving a CVR score of 1.00 from 5 expert validators, thus confirming its readiness for use. Subsequent evaluation during instructional application revealed a marked elevation in students' critical thinking abilities. Students in the Biology Department at FMIPA, Universitas Bengkulu, showed an initial mean pre-test score of 41.67, which surged to 88.00 in the post-test. This change resulted in an N-gain score of 0.79, positioning the improvement in the "high" category. Therefore, A. bubalinum extract is confirmed to hold antibacterial potential, and the E-Module is proven to be an effective educational tool for enhancing students' critical thinking competence.
Kepayang (Pangium edule Reinw), PENGARUH PEMBERIAN EKSTRAK PROTEIN TOTAL KOTILEDON BIJI KEPAYANG (Pangium edule Reinw) TERHADAP PENGGUMPALAN SPERMATOZOA SAPI ( Bos taurus ) Sitorus, Lizken; Haryanto, Hery; Ruyani, Aceng
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.887-896

Abstract

The effect of administering total cotyledon protein extract from kepayang seeds (Pangium edule Reinw) on cow spermatozoa (Bos taurus) was conducted from March - April 2015, in the Basic Science laboratory of biology, FMIPA UNIB and the biology garden of FKIP UNIB. The purpose of this study was to explain the effect of administering total cotyledon protein extract from kepayang seeds on the agglomeration of cow spermatozoa. The steps of this study were the total cotyledon protein of kepayang seeds extracted, protein precipitation, determination of total cotyledon protein content of kepayang seeds (P. edule), and treatment of cow spermatozoa agglomeration. The analysis used was ANOVA with 10 treatments and 3 repetitions. Based on the results of data analysis, the sediment at 50% ammonium sulfate gave an average coagulation time of bovine spermatozoa of 132 seconds with a total protein content of 56.15 mg/mL.
AP Anesthesia Analysis of the Implementation of the Refuse-Derived Fuel (RDF) Pilot Test in Rorotan, North Jakarta, in Advancing National Energy Security: Indonesia Anesthesia, Annisa Priska; Supriyadi, Imam; Purwantoro, Susilo Adi
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.853-860

Abstract

The escalating national energy demand and Indonesia's substantial reliance on fossil fuels underscore the imperative for the development of more sustainable alternative energy sources. Conversely, the magnitude of waste management challenges in DKI Jakarta persists, exerting an additional strain on the operational capacity of the Bantargebang TPST. Refuse Derived Fuel (RDF) is regarded as a strategic solution that can address the need for waste reduction and the provision of alternative energy. The objective of this study is to analyze the implementation of the RDF Plant Rorotan trial in DKI Jakarta using the implementation theory approach of Mazmanian & Sabatier and Allan McConnell's Policy Failure Theory model (2010). The methodological approach employed is descriptive qualitative, with data collection through documentation studies and observation.  The results of the study indicate that RDF Rorotan faces various technical, institutional, and social obstacles. According to the findings of Mazmanian & Sabatier's analysis, the characteristics of the problem, the clarity of policy objectives, coordination between relevant actors, and social environment support proved inadequate for achieving effective implementation. The presence of technical challenges, including elevated moisture content in waste, unpublished RDF quality, the ambiguity of off-takers, and complaints from residents regarding odors and health disturbances, suggests a suboptimal level of implementation readiness. McConnell's analysis corroborates the finding that RDF Rorotan is in a position of precarious success, which has resulted in policy failure in three areas: process, program, and politics. Indicators of early implementation failure include declining operational capacity, community resistance, and weakening policy legitimacy. The study's findings indicate that Rorotan RDF has not adequately fulfilled its designated role as a waste management solution and an energy alternative for national energy security. To optimize the potential of RDF, there is a necessity for improvements in quality standards, strengthened coordination, data transparency, and comprehensive environmental management strategies.
IMPLEMENTASI E-MODUL BERBASIS LITERASI SAINS TEMA AYO SIAGA BENCANA UNTUK MELATIH KEMANDIRIAN BELAJAR SISWA SMP Agustin, Salshanabilla; Vitasari, Mudmainah; Resti, Vica Dian Aprelia
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.878-886

Abstract

Achieving learning objectives in a successful learning process cannot be separated from one of the students' internal factors, namely independence, especially learning independence. One of the development research that has been carried out by Kristina (2022) is to produce supporting products for teaching materials that can encourage student independence in the form of electronic modules (e-modules). Therefore, efforts are made to implement the E-module to train students' independent learning. This research aims to analyze the implementation of a scientific literacy-based e-module with the theme Let's Prepare for Disasters in training junior high school students' independent learning. The research subjects were class VII students of SMP Negeri 2 Kramatwatu who took science lessons using the e-module. The research method used is descriptive qualitative with data collection techniques in the form of observing learning implementation, observing students' independent learning activities, and learning independence questionnaires. The results of the research showed that the implementation of learning using e-modules went very well, reaching 93.4% at the first meeting and 96.4% at the second meeting. Observations of student learning independence showed an average observation result of 74.3% at the first meeting and 86.1% at the second meeting. Student learning independence questionnaire data supports observation results with an average of 81.1% in the "very good" category. These data show that the e-module based on scientific literacy with the theme Let's Prepare for Disasters is able to effectively train junior high school students' learning independence, as seen from the consistency between learning implementation, student activities in learning independence, and the results of students' perceptions through the learning independence questionnaire.
Pemanfaatan Teknologi Satelit untuk Mitigasi Bencana dan Penguatan Resiliensi Nasional terhadap Ancaman Geospasial di Indonesia: Indonesia Afriyanto, Mulya; Supriyadi, Asep Adang; Arief, Syachrul; Waluyo, Dangan
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.866-877

Abstract

Indonesia is one of the countries with the highest level of geospatial disaster risk due to its position on the Pacific Ring of Fire and its exposure to earthquakes, tsunamis, volcanic eruptions, floods, and landslides. The increasing complexity and frequency of disasters, exacerbated by climate change, demands a faster, more accurate, and integrated monitoring system. However, previous studies have focused more on the technical aspects of disaster monitoring without comprehensively examining the strategic role of satellite technology in strengthening Indonesia's national resilience. This gap is the basis for this study. This study aims to analyze the contribution of satellite technology in disaster mitigation and assess how satellite data integration can strengthen national resilience to geospatial threats. The method used is a systematic literature review of reputable international publications from 2014 to 2025 that discuss remote sensing technology, InSAR, damage mapping, early warning systems, and geospatial integration for disaster risk management. The results of the study show that satellite technology plays an important role in three main aspects: (1) real-time disaster monitoring through multisensor data capable of covering a wide area; (2) improving the accuracy of early warning systems for various geospatial disasters; and (3) strengthening national resilience through support for damage mapping, rapid response, strategic decision-making, and inter-agency coordination. The novelty of this research lies in the development of an integrative synthesis that links the use of satellite data with Indonesia's national resilience framework, as well as the affirmation of the need to integrate satellite technology into national disaster management policies. These findings have important implications for strengthening modern mitigation systems and adapting to the escalation of geospatial risks in the future.

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