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Jurnal Penelitian Pendidikan IPA (JPPIPA)
Published by Universitas Mataram
ISSN : 24602582     EISSN : 2407795X     DOI : -
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics
Science Educational Research Journal is international open access, published by Science Master Program of Science Education Graduate Program University of Mataram, contains scientific articles both in the form of research results and literature review that includes science, technology and teaching in the field of science. The Science Educational Research Journal is published twice in a year in January and July editions. The editors receive writing in Indonesian or English, either from the university or from outside the university.
Arjuna Subject : -
Articles 5,869 Documents
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Effect of Giving Ethanol Extract of Robusta Coffee Beans (Coffea canephora Pierre ex A. Froehner) Based on Immunohistochemical Examination of GLUT-4 Protein Expression in White Rats (Rattus norvegicus) Model of Diabetes Mellitus Jasmiadi; Rusman; Alim, Nur; Rahma, Tarisa Jabal
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12044

Abstract

Metabolic disorders are characterized by an increase in blood sugar due to a decrease in insulin secretion by pancreatic beta cells. Cells are unable to stimulate glucose absorption in muscle and fat tissue. The presence of GLUT-4 can increase the rate of glucose entry into insulin target tissues. The chlorogenic acid compound in robusta coffee beans is believed to lower blood glucose levels by activating GLUT-4. The aim of the research was to determine the effect of administering ethanol extract of robusta coffee beans (Coffea canephora Pierre ex A. Froehner) based on immunohistochemical examination of GLUT-4 protein expression in mice (Rattus norvegicus) with Type 2 Diabetes Mellitus. The research method included extraction by maceration with 96% ethanol: distilled water (3:7) solvent and immunohistochemical testing of the effect of ethanol extraction of Robusta coffee beans on mice. Rats were divided into 5 treatment groups, namely, Na-CMC 1%, metformin, 150 mg/kg BB, 300 mg/kg BB and 450 mg/kg BB and fed a high-fat diet for 6 months and immunohistochemical examination of skeletal muscle tissue was carried out. The results of immunohistochemical examination found that protein expression occurred in the positive control of coffee bean ethanol extract at doses of 150 mg/kg BB, 300 mg/kg BB and 450 mg/kg BB. The statistical test results show that the ethanol extract of robusta coffee beans at doses of 150 mg/kg BB, 300 mg/kg BB and 450 mg/kg BB is significant with the negative control      Na-CMC 1% but with the positive control metformin the three doses of ethanol extract of robusta coffee beans are not significant. From the discussion above, it can be concluded that the ethanol extract of robusta coffee beans has an effect at doses of 300 mg/kg BB and 450 mg/kg BB
Design Digital Twin Technology for Practicum Distance Learning Lastya, Hari Anna; Sadrina, Sadrina; Ikhsan, Muhammad; Is, Fashbir
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12045

Abstract

One effective way to carry out laboratory practicums remotely is by using digital twin technology. This study investigates the feasibility and user response to using digital twin technology for remote Basic Electrical Energy practicums. This study employs a Research and Development (R&D) method involving students from the Department of Electrical Engineering. A validation sheet and a questionnaire were used to assess feasibility and user responses, respectively. The feasibility results of digital twin technology for remote practicums according to media experts obtained. The feasibility test achieved 90.71% from material experts and 91.43% from media experts from media experts, categorizing the system as "highly feasible." User responses were also positive, with scores of 88.25% for material presentation, 87% for the learning process, and 86.75% for practicality. The overall percentage across all indicators was 87.33%, placing it in the “Very Good” category for use in the Basic Electrical Energy Practicum.
Laboratory Study of Geotechnical Characteristics of Soil in Landslide-Prone Zone in Talamau District, West Pasaman Regency Nofrizal; Fauzan; Hakam, Abdul; Istijono, Bambang; Setiawan, Andriani; Aprisal
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12046

Abstract

The main triggering factor for landslides is high rainfall intensity, especially during the rainy season. Excessive rainfall can cause an increase in water content in the soil, which in turn will reduce the shear strength of the soil and increase the volume weight of the soil. The method used is a laboratory experiment by taking samples from the field. The sample of this study was sandy clay soil taken from a landslide-prone area located in Talamau District, West Pasaman Regency. Based on the results of soil geotechnical laboratory tests in the landslide-prone zone in Talamau District, West Pasaman Regency, it can be concluded that the soil sample has moderate plasticity characteristics with a Liquid Limit of 59.39%, Plastic Limit of 49.77%, and Plasticity Index of 9.62%. The soil reaches a maximum dry density of 1.37 gr/cm³ at an optimum water content of 500 ml, with a grain size distribution dominated by the sand fraction (83.978% retained on sieve No. 4-20) and a very low fine material content (1.234%). The results of the triaxial test showed soil behavior that varied from brittle to strain-hardening depending on the level of cell stress. Overall, the soil can be classified as well-graded sand with good drainage but low cohesion, thus requiring additional stabilization for construction applications in landslide-prone areas.
Development of E-LKPD Based on Google Sites with PBL Model in Achieving Scientific Literacy on the Human Excretory System Subject for XI Grade Students Lestari, Irma Wahyu; Hardoko, Aloysius; Herliani; Hudiyono, Yusak; Rambitan, Vandalita Maria M.; Maasawet, Elsje Theodora
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12065

Abstract

E-LKPD, an electronic learning activity, shows a good impact on student participation and ability to solve problem and apply learning concepts in some previous studies. The collaborative classroom using the problem-based learning model can be designed creatively, innovatively, and interactively, and used broadly using electronic media such as laptops or smartphones. This study aimed to develop Google Sites-based E-LKPD to create a fun learning process, encourage active participation, and improve the ability of students to solve problems and apply learning concepts in human excretory system material for grade XI. The ADDIE development model, namely Analysis, Design, Development, Implementation, and Evaluation, was applied in this study. The E-LKPD was then analyzed for its practicness and effectiveness on achieving scientific literacy among biology teachers and XI grade students of SMA Budi Luhur Samarinda on even semester of academic year of 2024/2025. The results showed that the developed E-LKPD had a practiceness level of 87.0% and 91.5% for the students and teachers, respectively, which were categorized as very practical. The effectiveness of achieving scientific literacy was applied using N-Gain analysis, which produced N-Gain score of 0.76 (effective) and 0.49 (ineffective) for the experimental and control classes, respectively. The increase in N-Gain in the experimental class was significant (p < 0.01, two-tailed t-test). These results indicate that E-LKPD based on Google Sites is effective in improving students' scientific literacy of the human excretory system material and is suitable for use in school learning for XI grade students.
Development and Implementation of a Custom GPT Model for Assessing Critical Thinking Skills in Higher Education Fathurrahman, Muhammad; Mahendra, Faisal Eka; Aronggear, Karim Paul; Kahar, Muhammad Syahrul; Alam, Teguh Hidayat Iskandar
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12067

Abstract

This study developed and evaluated a Custom GPT model designed specifically to assess the critical-thinking skills of higher-education students, focusing on synthesis (C4), evaluation (C5), and creation (C6) based on Bloom’s Taxonomy. Employing a design-based research (DBR) methodology, six iterative design cycles were systematically conducted, involving direct classroom observations, expert validations, and practical testing with fourteen mathematics education students. Findings demonstrated that the Custom GPT system is highly practical regarding ease of use (86.7%) and efficiency (85.1%), and practically engaging for learners (81.8%). Quantitative analyses showed significant improvements in students’ critical-thinking skills, particularly within synthesis and evaluation domains, although variations in creation domain performance indicated the need for incorporating more real-world, application-based scenarios. Qualitative feedback confirmed that real-time AI-driven feedback significantly enhanced students' self-reflection and learning strategies. This study contributes theoretically by integrating AI with Bloom’s Taxonomy-based assessment and offers practical implications by providing a scalable, objective, and innovative assessment approach for enhancing higher-order thinking in higher education contexts.
Digital Literacy in Indonesian Biology Education (2020–2025): A Research Synthesis Over One Lustrun, Methodological Critique, and Strategic Roadmap Magfirah, Nurul; Anisa; Hambali, Hilmi; Thahir, Rahmatia; Nurdiyanti
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12068

Abstract

This study systematically reviews Indonesian research on digital literacy in biology education published from 2020 to mid-2025. Using content analysis, 50 peer-reviewed articles from 17 nationally accredited biology education journals (SINTA-indexed) were examined. The findings reveal a sharp increase in publications in 2023 due to post-pandemic digital adaptation, followed by a moderate decline linked to national policy changes. Quantitative (46%) and research and development studies (42%) dominate, mainly employing static-group quasi-experimental designs. Participants are concentrated at the senior high school level (Grade 10), with underrepresentation of junior high school students, university students, and teachers. Thematically, most studies focus on biodiversity, while advanced topics like molecular biology remain underexplored. Methodologically, the use of questionnaires (70%) is prevalent, with limited adoption of interviews, observations, or test-based assessments. Descriptive statistics are primarily used, with minimal application of inferential methods such as t-tests or ANOVA. Methodological inconsistencies further hinder study replication. The study recommends diversifying research designs, expanding participant profiles, standardizing instructional terminology, and applying more rigorous analysis frameworks to support equitable and digitally adaptive biology education aligned with the Merdeka Curriculum and 21st-century competencies.
Development of a Banana Peel Waste-Based Bio-Battery as a Learning Media on Voltaic Cell Material Tiara, Tiara; Fadilah, Raudhatul; Fitriani, Fitriani
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12086

Abstract

This study aims to develop an experimental-based learning media in the form of a biobattery made from banana peel waste for the topic of voltaic cells. The research method used is the ADDIE development model. The analysis stage was carried out through curriculum review, observation of student needs, and identification of banana peels as a potential electrolyte material. In the design stage, a worksheet was prepared that was integrated with the procedure for making a simple biobattery. The development process included fabricating a biobattery from banana peels, assembling a simple voltaic cell, and creating an interactive learning media. Validation was carried out by material experts and media experts, resulting in an average feasibility score of 0.91 and 0.93, respectively, which are categorized as high. Practicality was assessed through a questionnaire, with small group trials achieving a score of 73.96% (practical) and field trials reaching 94.89% (very practical). Limited trials involving students in grades XI and XII showed that this media not only improved conceptual understanding of voltaic cells but also fostered environmental awareness through the utilization of organic waste. The evaluation results indicate that the biobattery learning media is suitable for use as an alternative tool for contextual and environmentally friendly chemistry practicums.
Differences in the Percentage of Fusarium Wilt Disease Attacks and High Vegetative Growth of Purple Eggplant (Solanum melongena L.) Plants with Various Concentrations of Antagonist Fungus Trichoderma harzianum Julyasih, Ketut Srie Marhaeni; Parwata, I Putu; Pertiwi, Ni Putu Dian
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12090

Abstract

Microorganisms that have antagonistic properties against pathogens are an alternative as a material for control, such as Trichoderma sp. The use of biological agents has the potential to control plant diseases safely and environmentally friendly, Trichoderma sp is a fungus that can be a biocontrol agent because it is antagonistic to other fungi. Trichoderma sp is a fungus whose habitat is in the soil, including the Ascomycetes class which has green spores. This fungus has the potential for degradation of various heterogeneous substrates in the soil, positive interactions with the host, producing enzymes to improve plant nutrition. Until now, there has not been much research conducted on the competence of Trichoderma sp. isolates in inhibiting the development of Fusarium wilt disease. The purpose of this study was to test the difference in the percentage of Fusarium wilt disease attacks on eggplant plants and plant vegetative growth due to the provision of variations in the concentration of Trichoderma sp. The type of research conducted was a true experimental, with the research design used was a Completely Randomized Design using 6 treatments, namely with the treatment of Trichoderma sp. isolate concentration. grown on rice media with concentrations of 0%, 10%, 20%, 30% 40%, and 50%, each treatment was repeated 5 times so that there were 30 experimental units. The variables observed in this study were the differences in the percentage of Fusarium Wilt disease attacks and the high vegetative growth of purple eggplant plants. The data obtained were analyzed using the analysis of variance of the ANOVA test with a level of 5%. If there is a significant difference, it is continued with the Duncan test at a level of 5%. The results showed that there was a significant difference in the variation of T. harzianum concentration on the percentage of Fusarium wilt disease attacks, and the high growth of purple eggplant plants.
Strategi Pengasuhan Orang Tua Tunggal dalam Mengelola Emosi Remaja: Studi Kasus di Desa Ramba, Sosa Julu, Padang Lawas Daulay, Maslina; Daulay, Ummi Syopiah; Siregar, Hamdan
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12102

Abstract

This research is motivated by the high incidence of emotional disorders among adolescents in Ramba Village, Sosa Julu, Padang Lawas, who are raised by single parents with limited supervision and attention. This study aims to identify the types of emotional disorders experienced by adolescents, the parenting styles applied by single parents, and the supporting and inhibiting factors involved. This qualitative descriptive study was conducted in Ramba Village. Data were collected through purposive sampling from six single parents, ten adolescents aged 17 to 21 years, as well as neighbors, peers, and the village head. Data collection methods included non-participant observation, unstructured interviews, and documentation. Data validity was ensured through methodological triangulation. The results reveal from a psychobiological perspective that emotional disorders experienced by adolescents include anger, anxiety, and stress. Single parents apply both authoritarian and democratic parenting styles, with democratic parenting proven to be more effective in managing emotions. Supporting factors include family support and a positive social environment, while inhibiting factors include low parental education, limited time, and economic constraints. This study concludes that from a psychobiological approach, appropriate parenting styles, especially democratic parenting and environmental support, are very important for improving adolescents' emotional well-being.
Optimization of Ultrasonic-Assisted Extraction of Curcuminoids from Temulawak (Curcuma xanthorrhiza Roxb.) Using Response Surface Methodology Yusnira; Ediputra, Kasman
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12108

Abstract

Temulawak (Curcuma xanthorrhiza Roxb.) is a native Indonesian medicinal plant that has a lot of curcuminoids with strong pharmacological activity. However, traditional extraction procedures don't always work well or provide good quality extracts. The goal of this research is to find the best way to get curcuminoids out of temulawak utilizing ultrasonic-assisted extraction (UAE) and response surface methodology (RSM). The Box-Behnken Design was used to optimize the process with three independent variables: ultrasonic power (200–400 W), extraction duration (20–60 minutes), and the ratio of material to solvent (1:15–1:35 g/mL). We used validated HPLC to look at curcuminoids, the DPPH technique to measure antioxidant activity, and a second-order polynomial model to look at the data. The mathematical model shows a good fit (R² = 0.9847), with all variables having a significant impact on the curcuminoid yield. The best results were achieved with an ultrasonic power of 354 W, an extraction time of 52 minutes, and a material to solvent ratio of 1:22 g/mL, leading to a total curcuminoid yield of 23.4±0.6 mg/g of simplicia and an antioxidant activity IC₅₀ of 31.2±1.1 μg/mL. The enhanced UAE process gave 8.4 times more yield than maceration and took 28 times less time to extract. The improved UAE is a quick and long-lasting way to get curcuminoids out of temulawak with a high yield and high-quality extract. This study gives scientists the information they need to create turmeric extraction technologies on an industrial scale to help Indonesia's pharmaceutical and nutraceutical businesses.

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