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Jurnal Penelitian Pendidikan IPA (JPPIPA)
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ISSN : 24602582     EISSN : 2407795X     DOI : -
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.
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Articles 83 Documents
Search results for , issue "vol 12 no 7 (2026)" : 83 Documents clear
Implementation of an EDP-Based STEM Project to Develop Students’ Problem-Solving Skills in Light and Heat Energy Concepts Rifqah Humairah Amir; Tunjungsari Sekaringtyas; Mahmud Yunus
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.13870

Abstract

Elementary science learning requires contextual activities that enable students to apply scientific concepts when addressing real-life problems. However, in-depth qualitative evidence explaining how each Engineering Design Process-based STEM (EDP-STEM) stage supports elementary students’ problem-solving skills remains limited, particularly in light and heat energy learning. This study aimed to describe EDP-STEM implementation through a solar oven project and analyze how its stages supported fifth-grade students’ problem-solving processes. Its novelty lies in mapping five EDP-STEM stages to four problem-solving indicators using multiple qualitative data sources. A qualitative case study was conducted with 26 students in four groups during eight learning sessions. Data were collected through observations, interviews, student worksheets, reflective journals, field notes, rubrics, photographs, and videos. The data were organized, coded, categorized, compared, and interpreted, while credibility was supported through source and method triangulation. Students identified insufficient heat, unstable reflectors, thick plastic covers, and uneven sunlight distribution, then proposed corresponding design modifications. Project scores ranged from 88 to 96; three groups received an A grade and one received a B grade. The clearest evidence concerned problem identification and consideration of possible solutions. Overall, the four indicators emerged through interconnected cycles of designing, testing, evaluating, reflecting, and revising.
Differences in Salivary Calcium Levels and Oral Hygiene Status in Elderly Men and Women in Suka Maju Village, Deli Serdang Regency Pitu Wulandari; Irma Ervina; Armia Syahputra; Syafira Yan; Julia Maharani
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.14279

Abstract

Previous studies have examined salivary calcium and periodontal disease; however, evidence regarding sex-related differences in salivary calcium levels and oral hygiene status among elderly individuals with periodontitis, particularly in Indonesia, remains limited. This gap highlights the need for studies that can support more targeted oral health assessment and management in geriatric dentistry. This study aimed to analyze differences in salivary calcium levels and oral hygiene status between elderly men and women in Suka Maju Village, Deli Serdang Regency. This observational analytic study used a cross-sectional design. The subjects consisted of 88 elderly individuals. Oral hygiene was assessed using the calculus index, debris index, and Oral Hygiene Index (OHI), while salivary calcium levels were analyzed using spectrophotometry. The results showed that salivary calcium levels were higher in elderly men than in women. Most subjects in both groups had poor oral hygiene status. There was a significant difference in salivary calcium levels between elderly men and women (p = 0.004), while no significant difference was found in oral hygiene status between the two groups (p = 0.950). As the conclusion in elderly individuals with periodontitis, salivary calcium levels differ between females and males, with females having higher levels than males. The male OHI is higher than the female OHI, but there is no significant difference between the two.
Efisiensi Produksi Briket Batok Kelapa untuk Ekonomi Sirkular Grace Evelyn; Anas Miftah Fauzi; Moh. Yani
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.14375

Abstract

Indonesia through its Enhanced Nationally Determined Contribution (ENDC), targets a 31.89% reduction in greenhouse gas (GHG) emissions with national efforts and 43.20% with international assistance by 2030. The purpose of this study is to develop quality control of materials and evaluate the optimation of using carbon waste in coconut charcoal briquette production. The laboratory test method by CHNS provides the quantitative data of carbon emission high risk in coconut shell charcoal raw, semi-finished materials, and finished briquette. The method of analytical hierarchy process (AHP) is used to find that penta-helix collaboration scheme between between government, industries, institutions, societies, and consumers has the AHP highest priority with score 0.71. The combination of reutilizing energy based on a reject briquette oven has been proven to reduce emissions into make carbon neutral. Export-standard shisha briquettes based on CHNS has the highest carbon concentration (77.57%) and the second highest is oven fuel powder/reject briquette material (59.87%), means the briquettes have a maximum combustion rate and minimal ash release into the air. This work builds a regulation concept of agro-industry sector in the practice of material quality control for clean, low-carbon production.
Pengembangan tes pemahaman konsep pemanasan global berorientasi lahan basah menggunakan model Rasch Rahmadia Tiara Agusta; Ahmad Fauzan; Edwin Musdi; Suherman; I Made Arwana
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.14414

Abstract

This study explores authentic numerical practices and numeracy embedded in the Maapam tradition of West Pasaman through an ethnomathematical lens. The Maapam tradition is a communal cultural practice involving the preparation, cooking, and sharing of traditional cakes called apam. Using a qualitative ethnographic approach, data were collected through direct observation and semi-structured interviews with community members who actively participate in the tradition. The findings reveal that Maapam involves various forms of mathematical and numeracy reasoning that occur naturally within everyday cultural activities. In particular, proportional reasoning and numerical scaling are demonstrated when determining the composition and quantity of ingredients according to the desired amount of apam. Practical arithmetic and budgeting are also evident during the procurement of ingredients, including estimating quantities, calculating costs, comparing prices, and managing available resources. Furthermore, spatial and numerical measurement can be observed through the use of circular molding tools, including considerations of size, diameter, quantity, and distribution. These practices demonstrate that numeracy is not merely an academic construct learned in formal educational settings but also a lived cultural competence developed through meaningful communal activities. Integrating the Maapam tradition into numeracy education can provide a culturally responsive learning context that connects abstract numerical concepts with students’ everyday experiences and local environment. Such integration may strengthen students’ numerical reasoning, problem-solving abilities, and understanding of mathematical concepts while simultaneously fostering cultural awareness, appreciation, and respect for local traditions. Therefore, Maapam represents a valuable ethnomathematical resource for developing meaningful, contextual, and culturally relevant numeracy learning in contemporary educational contexts.
Improving Teaching Quality and Undergraduate Students' Critical Thinking Skills through Contextual Teaching and Learning Integrated with Lesson Study in a Basic Physics Course Atika Ulya Akmal; Leni Zahra; Aissy Putri; Ummitul Fitri
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.14765

Abstract

This study aimed to improve teaching quality and undergraduate students' critical thinking skills through the implementation of the Contextual Teaching and Learning (CTL) model integrated with Lesson Study in a Basic Physics Concepts course. The study employed Classroom Action Research using the Lesson Study approach, which was conducted through four cycles consisting of the PLAN–DO–SEE stages. The participants were 60 first-semester students enrolled in the Elementary School Teacher Education Program at Universitas Negeri Padang. Data were collected through classroom observations, interviews, field notes, and a critical thinking assessment rubric. The data were analyzed descriptively by reducing, displaying, and interpreting the findings from each cycle. The results showed continuous improvement in both teaching practices and students' critical thinking skills throughout the implementation. Lesson Study enabled lecturers to design contextual lesson plans, facilitate collaborative learning, provide authentic learning experiences, and conduct reflective teaching practices. Students demonstrated progressive improvement in analyzing contextual problems, providing evidence-based reasoning, drawing conclusions, and communicating their ideas during classroom discussions. The final average critical thinking score reached 3.17 on a 4-point scale, indicating a good level of critical thinking. These findings suggest that integrating CTL with Lesson Study effectively enhances teaching quality while fostering students' critical thinking skills in Basic Physics learning.
Polystyrene Microplastics in Aquatic Rearing Systems: Impacts on Growth Performance and Histomorphometry of the Giant Freshwater Prawn (Macrobrachium rosenbergii) Nurul Suwartiningsih; Luqman Hakim Yusuf; Rani Swita; Rani Marsela; Dian Eka Wijayanti; Aulia Fayzha Aszhara; Iga Novianti
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.14817

Abstract

Polystyrene (PS) microplastics are widely detected in aquatic environments, particularly in freshwater ecosystems, and may pose ecological risks to aquatic organisms. However, information on how PS microplastics affect the giant freshwater prawn, an economically important freshwater aquaculture species, remains limited, particularly at the tissue level. This study therefore investigated the effects of PS microplastics in rearing media on microplastic accumulation, growth performance, and histomorphometry of the giant freshwater prawn. Following a three-day acclimation period, prawns were exposed to four concentrations of PS microplastics (0, 1, 10, and 100 mg/L) for 14 days. Growth parameters (length and weight), microplastic abundance in organs (gills, intestine, and muscle), and histomorphometry of the gills, intestine, and muscle were evaluated using hematoxylin–eosin staining. Data were analyzed using analysis of variance or Kruskal–Wallis tests followed by Duncan’s test and regression analysis. The results showed that microplastic abundance in the rearing media significantly increased microplastic accumulation in the gills and muscle (p < 0.05), but not in the intestine (p > 0.05). Exposure to PS microplastics did not significantly affect growth performance or gill lamella length (p > 0.05). However, significant alterations were observed on intestinal histological parameters and muscle myofiber structure (p < 0.05). These findings demonstrate that PS microplastics can induce tissue-level alterations in M. rosenbergii despite the absence of short-term growth effects.
The Impact of Fermentation on the Physical and Chemical Properties of Green and Roasted Robusta Coffee Beans Annisa Lutfi Alwi; Anni Nuraisyah; Rizky Nirmala Kusumaningtyas
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.14819

Abstract

Conventional coffee decaffeination often relies on chemical solvents that can alter quality and raise processing costs. Although biological fermentation has been studied, research typically evaluates fermentation and roasting separately. Additionally, the use of civet-derived microorganisms as fermentation inoculants is less explored compared to spontaneous, yeast, or lactic acid bacteria-based fermentations. Therefore, this study investigated the interaction between civet-derived microbial inoculum and fermentation duration on the physicochemical characteristics of Robusta coffee before and after roasting. Fully ripe Robusta coffee cherries were fermented in sealed fermenters using civet-derived inoculum at 0%, 50%, and 100% concentrations for 24, 48, and 72 h under controlled conditions; each treatment was replicated 3 times. Density, moisture content, and caffeine concentration were determined in green and medium-roasted beans using standard methods and HPLC analysis. Fermentation significantly affected caffeine concentration and several physical properties of coffee beans. In roasted beans, caffeine content ranged from 0.20% to 0.34%, with the lowest value observed at 100% inoculum for 72 h and the highest at 50% inoculum for 24 h. Extended fermentation reduced caffeine by up to 35.3% (0.34% to 0.22%). These findings demonstrate that civet-derived microbial fermentation can serve as a sustainable biological decaffeination strategy while influencing coffee responses during roasting.
Optimizing Sustainable Broiler Production Through Elasticity Analysis: Evidence from Partnership-Based Closed House Systems Reynaldi Rizalianus Hutama; Dewi Masyithoh; Inggit Kentjonowaty; Arsalan Fadlan Aziz; Muhammad Helmi; Budi Hartono; Puji Akhiroh; Nanang Febrianto
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.15009

Abstract

The broiler industry plays a critical role in Indonesia’s food supply chain, yet productivity challenges persist, particularly in partnership-based closed-house systems. This study examines the influence of production inputs on broiler output using data from 50 contract farmers in Malang Regency through multiple linear regression, LASSO regression, and elasticity analysis. Severe multicollinearity was detected among chicken population, feed quantity, and total cost (VIF > 100), addressed using LASSO regularization. The resulting adjusted R² of 0.9994 is unusually high for cross-sectional socio-economic data and should therefore be interpreted cautiously due to potential overfitting. Regression results indicate that number of employees, depletion rate, and performance index significantly contribute to production volume, while chicken population and feed quantity have negative and statistically non-significant coefficients. Elasticity analysis shows that significant input variables, except performance index, are inelastic (coefficients < 1), whereas performance index is elastic (1.899). The counterintuitive negative coefficients for population and feed, alongside the positive depletion coefficient, suggest residual multicollinearity and conceptual overlap between performance index and other inputs, which future work should address through model re-specification. These findings nonetheless highlight labor management, mortality control, and performance monitoring as priority areas for improving productivity in partnership-based closed-house broiler systems in Indonesia.
Corn Silk (Stigma maydis L.) as a Medicinal and Aromatic Plant: Phytochemical Diversity, Bioactivity, and Functional Applications: A Systematic Literature Review Wahyu Purwanjani; Rosdiana Syakur
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.15011

Abstract

Corn silk (Stigma maydis L.), the stigmatic tissue of maize (Zea mays L.), has long been used in traditional medicine for urinary and metabolic disorders. Although previous reviews have described its medicinal properties, current evidence remains fragmented across phytochemical, pharmacological, and functional studies, highlighting the need for a comprehensive systematic synthesis. This systematic literature review aimed to synthesize and critically evaluate evidence on the phytochemical composition, pharmacological activities, and functional applications of corn silk while identifying current research gaps and future research directions. A PRISMA-guided systematic search was conducted using Scopus, Google Scholar, and selected publisher databases for English-language studies published up to December 2024. Eligible peer-reviewed articles investigating corn silk phytochemistry, bioactivities, toxicity, or functional applications were screened according to predefined inclusion and exclusion criteria. Nineteen studies met the eligibility criteria and were included in the qualitative synthesis. Corn silk is rich in flavonoids, phenolic acids, polysaccharides, and bioactive peptides, exhibiting antioxidant, anti-inflammatory, antidiabetic, antihypertensive, and organ-protective activities. Emerging applications include functional foods, cosmeceuticals, and eco-friendly bioproducts. Corn silk demonstrates considerable therapeutic potential; however, further standardized studies and clinical validation are needed to support its evidence-based application.
The Use of Technology to Improve the Quality of Education by Indonesian Researchers in Scopus Database: A Bibliometric Analysis Rahayu Nurfadilla; Zafrullah; Muhammad Al Ikhsandi Palysa Putra; Khusnul Hatimah; Izzul Kiram Suardi; Muhammad Najib
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.15090

Abstract

This study aims to examine research trends and developments related to the use of technology for improving educational quality by Indonesian researchers through a bibliometric analysis of Scopus-indexed publications. A total of 617 documents were retrieved through a PRISMA-based screening procedure and analyzed using Biblioshiny (R) and VOSviewer. The findings indicate a substantial increase in publication output between 2019 and 2025, reaching its highest level in 2025. Padang State University recorded the highest affiliation occurrence in the dataset, while Habibi Akhmad was identified as the most productive author with the highest local h-index. The International Journal of Emerging Technologies in Learning emerged as one of the leading publication sources, recording the highest local h-index among journals in the dataset. Highly cited publications were predominantly associated with the "Technology Acceptance Model" (TAM). Keyword and thematic analyses revealed the continued prominence of “Educational Technology”, “Digital Learning”, and “Higher Education”. Overlay visualization identified “Machine Learning” and “Digital Competence” as emerging themes, while “Mathematics Education” and “Instructional Design" demonstrated increasing research attention in recent years. These findings highlight the rapid growth and diversification of educational technology research in Indonesia and provide valuable insights for future research and policy development toward achieving quality education.

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