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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
 546   547   548   549   550 
The Effect of Basal Medium on Callus Induction and Plant Regeneration in Anther Culture of Rice (Oryza sativa L.) Iriani, Yoanita Fadlilah; Prayantini, Dian Catur; Nahampun, Hartinio Natalia; Mastuti, Retno; Harijati, Nunung
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.v11i8.11884

Abstract

Anther culture is an effective tissue culture technique for rapidly producing doubled haploid (DH) plants, significantly shortening the breeding cycle by 2-3 years compared to conventional methods. This study aimed to evaluate the effects of callus induction basal medium (B5 Gamborg and N6 Chu) and subsequent plant regeneration in both Japonica and Indica rice genotypes. The experiment was conducted using a completely randomized design (CRD) with two treatment factors. The first factor was genotype (G), comprising Nipponbare (G1), RCKJ 05 (G2), RCKJ 10 (G3), RCKJ 15 (G4), RCKJ 25 (G5). The second factor was the basal medium (M), consisting of N6 Chu medium (M1) and B5 Gamborg medium (M2). Each treatment combination (genotype x medium) was replicated three times, with one Petri dish (containing 125 anthers) per replicate. Parameters observed included callus induction frequency (CIF), green plantlet regeneration (RGP), and albino plantlet regeneration (RAP). The results demonstrated that both genotype and the basal medium for callus induction significantly influenced callus induction frequency and green plantlet regeneration.
Vulnerability Assessment of Vehicle Keyless Entry Systems Using the PTES Methodology Akbar, Ulil; Aziz, Muhammad Abdul; Setiawati, Donna; Rohmadi, Yusuf Eko
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.v11i8.11887

Abstract

The growing adoption of keyless entry systems in motor vehicles introduces new challenges in the security of radio-based communication. This study aims to identify and evaluate the vulnerability level of the keyless entry system on the Honda PCX 150 motorcycle against two types of man-in-the-middle-based attacks: replay attack and relay attack. Using the Penetration Testing Execution Standard (PTES) methodology, the study establishes a seven-stage testing procedure, from pre-engagement to reporting. Experiments were conducted using Flipper Zero as the main device, supported by GNU Radio, Software Defined Radio (SDR), and Universal Radio Hacker (URH). Each type of attack was tested 25 times. The results showed a 44% Success rate for the replay attack and 48% for the relay attack. Further analysis revealed that Success occurred not only on repeated frequencies but also on single-occurrence frequencies, with effectiveness rates of 50% and 45%, respectively. These findings indicate the absence of security mechanisms such as rolling code, time or location-based validation, and frequency hopping, allowing intercepted signals to be accepted by the vehicle. The study concludes that the Honda PCX 150's keyless entry system has significant security gaps, potentially exploitable using passive tools. It recommends the implementation of dynamic authentication mechanisms and cryptographic technologies to enhance the security of vehicular radio signal transmissions.
Karakteristik Morfometri dan Hubungannya dengan Kejadian Banjir di DAS Paguyaman, Gorontalo Maulana, Karina Meiyanti; S, Ahmad Syamsu Rijal; Dangkua, Talha; Jaya, Risman; Mulabbi, Andrew
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.v11i8.11909

Abstract

The Paguyaman Watershed represents a strategically significant and essential water resource for the surrounding region. In recent years, this area has become increasingly vulnerable to environmental pressures, including heightened sedimentation, changes in land use, declining water quality, and more frequent flooding events. This study aims to evaluate the morphometric characteristics of the Paguyaman Watershed and their relationship to flood vulnerability observed over the past five years. Morphometric analysis was conducted using quantitative methods within GIS and remote sensing approach. The primary dataset utilized was DEMNAS. The analyzed morphometric parameters include drainage density (3.95), stream frequency (8.61), bifurcation ratio (8.41), form factor (0.13), elongation ratio (0.40), and ruggedness number (8.20). These parameter values indicate that the Paguyaman Watershed possesses an elongated concave shape, steep topography, high surface runoff intensity, and low infiltration capacity. The findings reveal that the watershed exhibits characteristics of high flood susceptibility, as evidenced by recurrent flood events in the villages of Totopo, Tolite, and Juria over the last five years. The spatial pattern of flood vulnerability within the watershed is closely linked to morphological features, such as steep slopes, low soil infiltration capacity, and excessive surface flow accumulation—particularly within the Bilato and Boliyohuto sub-districts.
Enhancing Scientific Literacy through Project-Based Learning in Plant Physiology: A Study of Student-Managed Cultivation Projects Jayati, Ria Dwi; Fitriani, Linna
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.v11i8.11921

Abstract

This study addresses the persistent problem of low scientific literacy among biology education students. It aims to evaluate the effect of project‑based learning (PjBL) through student‑managed plant cultivation on enhancing their scientific literacy. Employing a sequential explanatory design with a mixed‑methods approach, quantitative data were gathered via the Test of Scientific Literacy Skills (TOSLS), while qualitative data were collected through semi‑structured interviews, documentation, and participatory observation. Quantitative analysis showed a significant increase in the mean TOSLS score from 4.43 in the pretest to 9.79 in the posttest (p < 0.001). Corresponding qualitative findings revealed perceived gains in critical thinking, analytical reasoning, and scientific communication, and students reported the experience as authentic and meaningful. In conclusion, PjBL proves effective in facilitating scientific literacy by integrating cognitive, social, and reflective dimensions through real‐world activities such as plant cultivation, offering a robust link between theoretical knowledge and practice in science education.
Analisis Morfometri Komparatif untuk Penilaian Risiko Banjir di Sub DAS Alo dan Molamahu, Kabupaten Gorontalo Indrawan; Dangkua, Talha; S, Ahmad Syamsurijal; Jaya, Risman
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.v11i8.11924

Abstract

This study conducts a comparative morphometric analysis of the Alo and Molamahu sub-watersheds, located in the upstream Limboto Watershed, Gorontalo Province, Indonesia, to assess flood risk. Using the National Digital Elevation Model (DEMNAS) with an 8-m spatial resolution, classical morphometric parameters were derived through remote sensing and Geographic Information System (GIS) techniques. Both sub-watersheds share a maximum stream order of 4 and exhibit relatively high drainage density and stream frequency, indicating rapid surface runoff. However, the Molamahu sub-watershed is larger, steeper, and has a higher ruggedness number than Alo, suggesting greater erosion potential and higher susceptibility to landslides and flash floods. In contrast, Alo shows gentler slopes but remains flood-prone due to short overland flow paths. The analysis demonstrates that morphometric characteristics directly influence flood dynamics, highlighting the need for tailored watershed management. Recommended strategies include erosion control and slope stabilization in Molamahu, and water retention measures in Alo, supported by broader reforestation efforts across the Limboto system.
Development of Animated Videos on Basic Chemistry Laws as Digital Learning Media Yuninnur, Lilik; Fitriani; Mukhlishin, Hamdil
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.v11i8.11932

Abstract

This research aims to develop animated videos media as a digital learning medium to support students’ understanding of the basic laws of chemistry. The study employs the ADDIE development model, which includes the stages of Analysis, Design, Development, Implementation, and Evaluation. The develop media is validated by matter experts, media experts, and linguists as well as small-scale and large-scale trials by students. Validation results indicated that the animated videos were included in the category of “Very Valid”, while results of the practicality test by teachers and students placed the media in the category of “Very Practical”. Based on these results, the animated videos are considered very valid and very practical for use as a digital learning medium for improving students’ understanding of the basic laws of chemistry at Taman Mulia Kubu Raya High School.
The Influence of Initial Ability and Critical Thinking on Science Learning Outcomes through RADEC-Based Comic Media Jannah, Raudhotul; Amini, Risda; Muhammadi, Muhammadi; Desyandri, Desyandri
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.v11i8.11941

Abstract

This study aims to analyze the influence of initial abilities and critical thinking on learning outcomes through RADEC-based comic media for fourth grade elementary school students. The focus of the study was to determine the extent to which initial abilities and critical thinking affect student learning outcomes. The research method used was quasi-experimental with a pretest-posttest control group design. The research sample consisted of two classes, namely the experimental class using RADEC-based comic media and the control class using conventional learning methods. The research instruments included initial ability tests, critical thinking tests, and learning outcome tests. Data were analyzed using the Two-Way ANOVA statistical technique to test the effect of initial abilities and critical thinking on learning outcomes, and the Independent Samples T-Test to compare differences in learning outcomes between the experimental and control classes. The results showed that: students' initial abilities had a significant effect on learning outcomes through RADEC-based comic media; critical thinking had a significant effect on learning outcomes; the interaction between initial abilities and critical thinking did not have a significant effect on learning outcomes. The practical implications of this study are the importance of considering students' initial abilities and critical thinking in designing learning strategies, as well as the use of RADEC-based comic media as an effective learning alternative in Elementary Schools.
Sintesis GO/C-Dots Berbahan Dasar Limbah Batang Tembakau Dengan Liquid Sonication ‎Exfoliation Dan Metode Pemanasan Oven Tsaqilatussyifa, Sabrina; Ekawati, Rizka; Muntako, Ahmad; Firdaus; Aryati, Deni; Herawati, Asmida
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.v11i8.11946

Abstract

This study investigated the utilization of tobacco stem waste as a green precursor for the synthesis of GO, C-Dots, and GO/C-Dots composites with 1:1 and 1:3 ratios through oven drying methods and liquid sonication exfoliation (LSE). Characterization techniques, including UV-Vis-NIR spectroscopy, XRD, FTIR spectroscopy, SEM, PL, and TRPL, were used to evaluate the synthesized materials. The GO/C-Dots composites exhibited an energy band that classifies them as organic semiconductors. XRD analysis showed a change in crystallinity and indicated an increase in C-Dots content. FTIR analysis showed a shift in functional groups at 1:1 to 1:3 ratios that showed an inverse trend. SEM analysis showed that the addition of C-Dots significantly affected the surface morphology and elemental composition of GO. TRPL test showed consistent results with the trend of PL intensity where C-Dots had the highest value and GO the lowest. This finding highlights the potential of GO/C-Dots composites as sustainable materials, with further exploration needed to assess their applications in various fields such as optoelectronics, catalysis, and environmental science.
Development of Differentiated Teaching Modules Based on Learning Styles in Project IPAS to Improve Students’ Collaboration Skills Boroallo, Paramitha Yemima; Werdhiana, I Komang; Tangge, Lilies N.; Aminah, Sitti; Ratman
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.v11i8.11966

Abstract

This study aims to develop a differentiated teaching module based on students' learning styles in the Project-Based Learning of Natural and Social Sciences (IPAS) to improve collaboration skills. The research employed a Research and Development (R&D) approach using the ADDIE model, which includes five phases: analysis, design, development, implementation, and evaluation. The subjects of the study were Grade X students at SMK Negeri 1 Parigi, with 19 students from the Akuntansi dan Keuangan Lembaga (AKL) program as the experimental class and 19 students from the Desain Pemodelan dan Informasi Bangunan (DPIB) program as the control class. Research instruments included expert validation sheets, practicality questionnaires, cognitive assessment tests (pretest and posttest), and observation sheets for collaboration skills. Validation results showed that the module achieved a validity level of 83%, categorized as valid. The module’s practicality was rated at 92% by teachers and 95% by students, both classified as highly practical. Regarding effectiveness, a comparison of posttest scores between the experimental and control groups yielded a Cohen’s d of 0.93, indicating a large effect on students’ cognitive outcomes. Additionally, within the experimental group, a comparison of pretest and posttest collaboration scores resulted in a Cohen’s d of 0.89, also classified as a large effect. These findings demonstrate that the differentiated teaching module effectively enhances students’ 21st-century skills, particularly collaboration.
Validity and Practicality of Integrated Student Worksheets (LKPD) Using the Project-Based Learning Model on the Mangrove Ecosystem to Improve Students' Science Process Skills Marjanah; Elfrida; Nuraini; Manurung, Nurhasnah
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.v11i8.11975

Abstract

This study aims to produce Student Worksheets (LKPD) integrated with the Project Based Learning model on the mangrove ecosystem material to improve valid and practical science process skills. This study uses the ADDIE development model (analysis, design, development, implementation, and evaluation). The research parameters measured are the validity and practicality of the LKPD. Validity is reviewed from the presentation, content, and language. Practicality is reviewed from the implementation of student activities during the learning process using the LKPD. Data analysis of this study was carried out descriptively quantitatively. Based on the results of the study, the validity of the LKPD was 94% with very valid criteria. The practicality of the LKPD based on the implementation of the LKPD was 90.01% with very good criteria and the student response aspect obtained an average of 92.36% with very good criteria. Thus, the Student Worksheet (LKPD) integrated with the Project Based Learning model is considered valid and practical so it is suitable for use in the learning process.

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