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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 6,280 Documents
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The Influence of Cocopeat Plant Media and Manure on the Growth of Ketapang (Terminalia cattapa L.) in Telaga Cemara Beach Forest, Holmafen Village, Muara Tor District, Sarmi Regency Felle, Isobela Kornelia; Antoh, Alfred Alfonso; Raunsay, Edoward Krisson; Akobiarek, Maik N R; Aisoi, Leonard Elisa; Jesajas, David Reinhard
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.4596

Abstract

Planting media with a certain composition and different treatments influence the growth of a plant. This research was carried out for 5 months from December 2022 -May 2023 with the aim of research to find out the right composition for planting T. catappa plants in the rehabilitation process of the Telaga Cemara beach forest in Holmafen Village, Muara Tor District, Sarmi Regency. The composition of the growing media used in this study was manure, cocopeat, and soil. The research design used was Completely Randomized Design (CRD). There are three variables used in this study, namely the independent variable (combination of Cocopeat manure and soil), dependent variable (type of tree planted), and control variable (soil without treatment). The results showed that there was an effect of treatment on the Ketapang plant which showed significant results on the five parameters tested, NL (T2K3), LL (T2K1), LW (T2K1), PH (T2K1), NB (T2K1). Based on the results of linear regression, the correct composition was obtained, namely the composition of 32.5% cocopeat, manure 17.5%, and land 50%.    
Power Station Engine Failure Early Warning System Using Thermal Camera Gozali, Alfian Akbar
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.4598

Abstract

Power station engines are critical infrastructure components that require constant monitoring to prevent failures and ensure an uninterrupted power supply. This paper proposes a failure early warning system based on a thermal camera using a computer vision approach. The system uses a thermal camera to generate thermal images in a video format, which is then processed by an automated fire detection engine and temperature detection engine. The results of these two subsystems are then used as input for an anomaly detection engine, which predicts the likelihood of engine failure. Based on the results of the experiments, it can be concluded that the YOLOv7 model outperforms Faster R-CNN in detecting fires, achieving a higher mAP score on the one-class dataset. The proposed temperature and anomaly detection system also accurately detected temperature levels and anomalies in thermal images. Furthermore, in the failure time prediction experiment, the Holt-Winters additive method with additive errors, additive trend, and additive seasonality model was identified as the best fit among the models evaluated. In contrast, the Decision Tree model showed good performance and a short training time, making it a good choice for applications where training time is critical. These results highlight the importance of selecting the most suitable method for a given application. Moreover, it demonstrates the effectiveness of different models and approaches for engine failure early warning systems in a power station using a thermal camera.
Optimizing the Role of Information Technology in Improving the Work Discipline of Language Center Employees Trisninawati; Amin, Zaid; Helmi, Sulaiman; Paningrum , Destina
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.4601

Abstract

Employee discipline is a very important factor in achieving the desired organizational goals and needs to be evaluated and improved. This study aims to explain the optimization of the role of Information and Communication Technology (ICT) to improve employee work discipline at the Language Center of South Sumatra Province. The survey method was used in this study by taking a random sample of 10 respondents from the population of employees of the Language Center of South Sumatra Province who were selected by purposive sampling technique. The collected data were analyzed using descriptive statistical techniques and simple linear regression. The results of the study show that overall, the work discipline of employees at the South Sumatra Province Language Center is at a good level. However, several factors such as information technology capabilities, especially in optimizing the use of fingerprint attendance machines, work motivation, supervision, and work environment affect employee work discipline. This study recommends increasing work motivation and more effective supervision to improve employee work discipline by optimizing the use of information and communication technology that already exists at the Language Center of South Sumatra Province. Optimizing the use of information technology, especially in the use of fingerprint attendance machines, can significantly increase employee productivity and performance as well as improve the performance of the South Sumatra Province Language Center in providing better services to the community.
The Effect of Experimental Learning Methods on Students' Cognitive Abilities in Science Learning Putri, Nindy Rizka Setyaris; Meilana, Septi Fitri
Jurnal Penelitian Pendidikan IPA Vol 9 No 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.4602

Abstract

Learning is a process of teaching and learning activities created by teachers to grow and develop cognitive, affective and psychomotor abilities. At present, there are still teachers who use rote learning methods so that students rarely get the opportunity to voice their opinions, find solutions to problems and participate actively in learning. This study aims to find out and show how experimental learning methods affect students' cognitive abilities in science learning in class IV SDN Ciracas 15 Pagi, East Jakarta. This research is a quantitative descriptive study using a quasy experimental design. A total of 53 students from one of Ciracas Elementary Schools in East Jakarta, both from class IV-A and IV-C were selected as samples using purposive sampling technique. To measure students' cognitive abilities, in this study data collection was carried out using the test method with cognitive ability test instruments in the form of multiple choice questions. Data analysis was performed using the t test. Based on the results of the data analysis, the results of the study show that the experimental class in science learning has significantly higher cognitive abilities, namely x̄ = 81.718 compared to students in the control class, namely x̄ = 73,857.
Self-Efficacy in Entrepreneurship for Science Teacher Candidates: A Comparative Study of Gender and Semester M. Harja Efendi; M. Khairul Wazni; Agus Muliadi
Jurnal Penelitian Pendidikan IPA Vol 9 No 7 (2023): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i7.4613

Abstract

This study aims to determine differences in student perceptions about self-efficacy in the field of entrepreneurship based on gender and semester. This study is an exploratory research with 35 biology education students as subjects. The research instrument used was a closed questionnaire with degraded answers according to a Likert scale that had been declared valid. Analysis of research data used is descriptive statistics and inferential statistics with t-test and Anova test at a significance level of 5%. The results of the study show that (1) students' perceptions of self-efficacy in the field of entrepreneurship has an average score of male students at 3.16 with the Good category and women at 3.10, while semester IV students are at 3.09 with the Good category, semester VI is at 3.12 with the Good category, and semester VIII of 3.15 in the Good category; (2) there is no significant difference in students' perceptions of self-efficacy in the field of entrepreneurship between male and female gender, as evidenced by a significance value of 0.716 greater than the alpha testing value of 0.05 (>0.05); (3) there is no significant difference in the perceptions of semester IV, VI, VIII students about self-efficacy in the field of entrepreneurship as evidenced by a significance value of 0.959 greater than the alpha testing value of 0.05 (>0.05).
Improving Problem Solving Ability Through Problem Based Learning E-Modules Herawati, Nadya Intan; Wilujeng, Insih
Jurnal Penelitian Pendidikan IPA Vol 9 No 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.4622

Abstract

This study aims to produce research instruments that are suitable for use in learning physics using the PBL learning model and to find out the increase in students' problem-solving abilities. The subjects of this study were 70 grade 10 students. This research was a Research and Development (R&D) study using a 4D development model consisting of Define, Design, Development, and Disseminate. The types of research data are qualitative and quantitative. collecting research data using observation and tests of students' problem-solving abilities given before and after learning. The results showed that the research instruments developed were valid for use in physics learning as evidenced by the results of the validity and reliability and the improvement of students' problem-solving skills in the modeling and implementation classes included in the medium category.
The Use of Instagram to Increase the Outcome in Learning the Reaction Rate in Chemistry Subject Fajri, Gunawan; Khaldun, Ibnu; Evendi, Evendi
Jurnal Penelitian Pendidikan IPA Vol 9 No 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.4634

Abstract

The reaction rate is one of the abstract chemical materials so it requires visualization that can describe the reaction rate events in a more realistic way so that it is more easily understood by students. Visualization can help students be able to observe the symptoms that occur, collect data and draw conclusions from the videos or images presented and improve student learning outcomes. Social media such as Instagram is very possible to be applied in the chemistry learning process which requires visualization to explain some chemistry concepts like reaction rate. The use of Instagram can help students observe the symptoms that occur in the reaction rate through the videos or images presented. Instagram is considered very appropriate to be used to convey learning material that requires visualization to increase students' understanding. The research method used was quasi-experimental with the use of experimental class and control class and shaped Posttest-Only Design. Based on the results of the study, the learning outcomes in the cognitive domain average value of the experimental class was 80.83 and the average value of the control class was 73.83 with increased learning outcomes N-gain of 0.26. Assessment of learning outcomes in the affective and psychomotor domains with the use of final score on a scale of 1 to 4. Calculation of the final score uses the score comparison formula obtained with the maximum score multiplied by the maximum score. In the present study, a final score with an average affective and psychomotor score of 3.21 and 3.04 was obtained respectively.
The Private Student's Junior High School and Their Numeracy Literacy Competency Fitrianingrum, Safira; Murtiyasa, Budi
Jurnal Penelitian Pendidikan IPA Vol 9 No 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.4640

Abstract

Numerical literacy is an important aspect of schooling. Students must be able to count, relate, and perform arithmetic. The purpose of this study is to know deeply the numeracy literacy competency of private student’s junior high school. The following findings are the result of research employing tests as a data collection instrument. There are two students in the high category, five in the medium group, and nineteen in the low category. Based on these findings, it is possible to conclude that children at the research school have poor literacy skills. Furthermore, it is envisaged that schools will seek alternate learning techniques capable of concretizing numeracy literacy principles. Numerical literacy is an important part of the world of education. Students are expected to understand and acquire the competency of numeracy.
Exploration of Thermophilic Bacteria: Systematic Literature Review Indriati, Gustina; Megahati S., Ruth Rize Paas
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.4643

Abstract

The selection of enzymes derived from microbes has several advantages compared to those derived from animals and plants. One of the advantages is that the growth of enzymes will occur more quickly in bacteria because the cells rapidly undergo division and cell production will be easier to increase if needed in large quantities and the time needed for enzyme production will be shorter. Thermophilic microorganisms are known as bacteria that are tolerant of high temperatures, but on the other hand these bacteria are also able to survive at these temperatures. Where the purpose of research is to explain exploration of thermophilic bacteria. A review is conducted on the state-of-the-art methods using the preferred reporting items for reviews and meta-analyses (PRISMA) guideline. Bacteria have important economic value in human life. Knowledge in this branch of science is useful in medicine, hygiene, food science and nutrition, agriculture, and industry. Based on the results of macroscopic, microscopic and biochemical characterization, it was found that many bacteria with various types recording to their habitat or place of development, exploraton of thermophilic bacteria was carried out so that they could be useful for the industrial world.  
Development of Student Worksheet for Sound Waves Based on Project Based Learning Model to Improve Students' Science Literacy Ansumarwaty, Febiyanti; 'Ardhuha, Jannatin; Hikmawati, Hikmawati; Makhrus, Muh.
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.4651

Abstract

Research and Development (R&D) research is included in this study using the 4D model developed by Thiagarajan. The product developed student worksheetound waves. Data collection techniques used validation sheets, teacher learning implementation observation sheets, student response questionnaires and test instruments. This product was assessed for validity by three expert validators who are physics lecturers and three practitioner validators who are physics subject teachers. Its validity was obtained from the assessment results of expert and practitioner validators, which reached 91.67% and 94.70% respectively, indicating that the product was very valid. In addition, the reliability value also met the standard with an average of above 75%. Therefore, it can be said that this product is feasible to use. The practicality of this product was evaluated through observation sheets by teachers and questionnaires filled out by students related to the learning carried out. The assessment results show that this product is very practical, with the implementation sheet by the teacher reaching 94.56% and the response of students reaching 89.54%. In addition to validity and practicality, the effectiveness of this product was also assessed. The limited trial was conducted by measuring the increase in pretest and posttest scores using the N-Gain test. The analysis results show that this product is quite effective, with the acquisition of the N-Gain test for students' science literacy of 0.69, which is in the medium category. Based on the evaluation results, it can be concluded that the sound waves student worksheetroduced is a feasible product, very practical, and quite effective in improving students' science literacy.

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