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Jurnal Pijar MIPA
Published by Universitas Mataram
ISSN : 19071744     EISSN : 24601500     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics
Jurnal Pijar MIPA (e-ISSN: 2460-1500 & p-ISSN: 1907-1744) is an open-access scientific periodical journal published by the Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA publishes original articles on current issues and trends in mathematics-science-science education studies. In addition, this journal addresses issues concerning environmental education and environmental science. The journal scopes are: a. Physics and Physics Education b. Chemistry and Chemistry Education c. Biology and Biology Education d. Natural Science and Science Education e. Mathematics and Mathematics Education f. Environmental and Environmental Education
Arjuna Subject : Umum - Umum
Articles 1,179 Documents
 76   77   78   79   80 
Anthelmintic Potential of Annona muricata Leaf Extract against Parasitic Nematode Haemonchus contortus Pratiwi, Baiq Yulia Hasni; Novitarini, Novitarini
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.8220

Abstract

Gastrointestinal infections caused by the parasitic worm Haemoncus contortus are the main cause of economic losses in the agricultural sector. H. contortus causes small ruminants such as goats to experience acute anemia and diarrhea, weight loss, decreased productivity, and eventually mortality, which impacts economic losses. Synthetic antiparasitics have been used extensively around the world to combat haemonchosis. However, the emergence of resistance to anthelmintics, accompanied by the unavailability of an effective vaccine, results in difficulties in controlling this disease. Because of the high cost of treatment and the emergence of resistance and toxicity due to the residue of antiparasitic drugs, it is necessary to develop natural anthelmintics that are easy to obtain, economical, and have minimal risk. This study aims to determine the anthelmintic effect of Annona muricata leaf extract on mice infected with H. contortus larvae. First, an in vitro study was conducted to see if the soursop leaf extract from Lombok would show a different effect from the previous research. In the in vivo test, the impact of A. muricata leaf extract was measured from the number of H. contortus eggs found in the feces and the percent reduction of adult worms collected from mice's stomachs. The result shows that the higher the concentration of soursop leaf extract, the higher the inhibition effect on larvae motility. The combination of A. muricata and albendazole had the strongest antiparasitic effect, shown by the lowest amount of eggs in feces and the highest reduction of adult worms in the stomach. However, administering A. muricata leaf extract can also reduce the number of eggs and adult worms in the stomach. Therefore, it can be concluded that A. muricata is a potential anthelmintic candidate for overcoming the H. contortus infection.
Evaluation and Addition of Waste Water Treatmant Plant Units in West Lombok Regency Hotel Melinda, Tina; Nurhidayah, Nurhidayah
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.8240

Abstract

The development of hotels in Lombok is very drastic, especially in tourist areas. In carrying out their activities, hotels require large amounts of water to meet the needs of guests and employees; besides that, water use in a hotel is also seen in the supporting facilities. Using large amounts of clean water will also produce large quantities of wastewater. This research aims to evaluate wastewater treatment installations at XY Hotel. The method used in this research is a field study followed by an analysis of water quality, process, and output. Based on the evaluation results, the Wastewater Treatment Plant at Hotel Aerobic has capacities of 20 m3/day, 15 m3/day, and 2 m3/day respectively.
Differentiated Learning on the Topics of Temperature and Heat to Determine the Effect of the PBL Model on Student Learning Outcomes Dunggio, Dian Pitaloka; Uloli, Ritin; Abdjul, Tirtawaty; Yusuf, Muhammad; Payu, Citron S.; Nurhayati, Nurhayati
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.8279

Abstract

Differentiated learning is an attempt to adapt the learning process in the classroom to meet the individual learning needs of each student. This research aims to determine the effect of the Problem-Based Learning (PBL) model through a differentiated approach to temperature & heat topics on student learning outcomes. This research is experimental research, with the research design being One Group Pre-test and Post-test Design. The population of this study was class VII students of SMP Negeri 1 Tilongkabila. The sample consists of 3 classes, namely experimental class, replication 1, and replication 2 with the Cluster Random Sampling technique. The instruments used in this research are learning style tests, teaching modules, student worksheets, teaching topics, and written tests (pre-test and post-test) to see student learning outcomes. Then, the data is analyzed using descriptive and inferential statistics, including normality tests, hypothesis tests, and n-gain analysis. The average score for class VII students is greater than the criteria for achieving learning goals, shown by the average score of the experimental class of 83.92, replication 1 at 83.67, and replication 2 at 82.92, compared to the criteria for achieving learning goals of 70. Based on the hypothesis testing criteria for the class, experimental t-count 14.009 is more significant than t-table 2.035, replication 1 t-count 11.417 is more excellent than t-table 2.035, and replication 2 t-count 12.084 is more remarkable than t-table 2.035, so it can be said t-count is more prominent than t-table. Thus, the PBL model, through a differentiated approach, affects student learning outcomes.
The Influence of the PBL Model on Temperature and Expansion Topics on Student Learning Outcomes Assagaf, Halisa; Mursalin, Mursalin; Abdjul, Tirtawaty; Ntobuo, Nova Elysia; Buhungo, Trisnawaty Junus; Payu, Citron S.
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.8280

Abstract

The Problem-Based Learning (PBL) model is a student-centered learning strategy that requires students to be skilled and sensitive in solving problems in the surrounding environment. This research aims to determine the effect of the PBL model on temperature and expansion topics on student learning outcomes. This research is experimental research, with the research design being One Group Pre-test and Post-test Design. The population of this research was class VII students of SMP Negeri 11 Gorontalo. The sample consists of 3 classes: experimental class, replication 1, and replication class 2. The data collection instruments used are validation sheets, observation sheets, and pre-test and post-test question sheets to see student learning outcomes; then, the data is analyzed using descriptive statistics and statistics. Inferential, which includes normality testing, hypothesis testing, and n-gain analysis. The results of the research show that the results of the hypothesis test are that for the experimental class, the t-count is 7.513 greater than t-table 1.697; for replication class 1, t-count 4.679 is more significant than t-table 1.720, and for replication class 2, t-count 2.080 is more important than t-table 1.729. It can be concluded that the hypothesis testing in each class is t-count greater than t-table; this can be interpreted as the influence of the PBL model on temperature and expansion topics on student learning outcomes.
The Influence of the PBL Model on Students Critical Thinking Ability in Wave Topic Saaban, Indriani; Pikoli, Masrid; Abdjul, Tirtawaty; Mursalin, Mursalin; Yusuf, Muhammad; Nurhayati, Nurhayati
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.8281

Abstract

The Problem-Based Learning (PBL) model is an educational innovation that improves students' thinking ability through organized team or group work. This research aims to determine the influence of the PBL model on students' critical thinking ability in wave topics. The research method used was quantitative experimental or descriptive methods. This research was carried out by collecting numerical data, which was then processed and analyzed to extract the scientific information behind it. There are two variables: X is the independent variable, and Y is the dependent variable. The sample source of the study sample was 27 students at SMP Negeri 1 Bulawa, in class VIII. The results of this research show that the calculated value of the t-test shows that the value of t-count = 57.062 at a significance level of 0.05 and t-table = 2.055. So this result shows t-count ≥ t-table. Therefore, the researcher concluded that the PBL model influenced students' critical thinking skills in wave topics.
Utilization of Chicken Egg Shells as Adsorbents for Indigosol Blue Dyes with Variations of Activators Rustiana, Tuti; Aprilani, Mira; Safitri, Bella; Wanti, Luthfiah Sekar
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.8286

Abstract

The textile industry still has serious problems in managing waste disposal that causes environmental pollution, including the batik factory industry. Many studies have been conducted to overcome ecological damage by reducing the levels of dyes contained in textile industry waste. Apart from textile industry waste, household waste, especially egg shells, is very high. One alternative method for processing batik factory liquid waste is by adsorption using biosorbent, which is considered cheaper and easier to obtain. An example of a biosorbent is an eggshell. This study includes the characterization of eggshells activated by NaOH and HCl for Indigosol Blue adsorption, morphological analysis of eggshells with SEM and EDS, wavelength determination, calibration curve, and adsorption capacity. The morphology of the eggshell shows a porous surface with high levels of calcium, oxygen, and carbon, indicating that the main compound forming the eggshell is CaCO3. The determination of maximum wavelength and adsorption capacity is done using the UV-Vis spectrophotometry method. The maximum wavelength is 530 nanometers, and an R2 value of 0.9596 was obtained from the regression curve equation. Characterization according to SNI eggshell before activation water content: 0.34%, ash content: 0.25%, iodine absorption: 326.552mg/gram and after activation with NaOH water content is 1.34%, ash content: 0.39%, iodine absorption: 403.015mg/gram. The optimal concentration of processed egg shells for indigosol blue adsorbent is 2% egg shells, the largest in this study as an adsorbent. It turns out that adsorption is still ongoing. The optimum type of activator for Indigosol Blue absorption is 100Mesh dry eggshell powder from NaOH activation.
Development of Computer Vision-based Visual Feedback Assistive Technology for Fine Motor Improvement in Children with Cerebral Palsy Mawaddah, Tarisya; Sartinah, Endang Pudjiastuti; Wagino, Wagino
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.8298

Abstract

Cerebral Palsy (CP) is a neuromotor condition that affects fine motor development, causing barriers to daily activities such as writing and grasping. This research develops an assistive technology that utilizes motion sensors to provide real-time visual feedback, which helps children understand and correct movements more effectively. The technology improves movement precision and coordination in motor skills, learner engagement, and structured monitoring of skill improvement. The uniqueness of this research lies in integrating computer vision technology with an interactive design that allows CP children to perform motor exercises and engage them in a more personalized and adaptive learning process. The Research and Development (R&D) method was used in the development, involving validating material experts, media experts, and educational practitioners. The results of media development show that assistive technology is feasible to use in improving the fine motor skills of children with cerebral palsy. Material experts stated an average value of 3.92, which was accumulated in percentage to 98.21%; media experts obtained results of 3.71, which was collected in percentage to 92.85%; and expert practitioners stated an average value of 3.93, which was accumulated in percentage to 98.43%. The assistive technology developed is worth testing in improving the fine motor skills of cerebral palsy children. This technology is expected to solve motor and coordination training issues at school and home. With a more interactive and fun approach, CP children can be more motivated to practice so that their motor skills can develop better.
Development of Comics Media to Improve Science Literacy and Concepts Understanding Junior High School Students In Central Halmahera Regency Through Reading Literacy Program Ade, Risnawati; Nasichah , Arini Z.; Mas'ud, Abdu
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.8327

Abstract

In the era of globalization and information technology that continues to develop, the world of education must be able to adapt to various changes. One very important aspect of the world of education is the use of learning media. This study aims to determine whether the development of learning media in the form of comics based on scientific literacy and students' conceptual understanding developed in this study is suitable for use in the learning process at SMP Negeri 4 Halmahera Tengah through the reading literacy program and to determine whether learning media in the form of comics can improve scientific literacy and students' conceptual understanding at SMP Negeri 4 Halmahera Tengah through the reading literacy program. This research is a type of development research (Research and Development). The data collection technique used in this study is to use five stages, namely the Define Stage, Development Stage, Interview, Observation, and Response Questionnaire. The study's data sources are divided into two parts, namely qualitative and quantitative data. Data analysis techniques in the study used the One-Group Pretest-Posttest Design, T-Test, and N-Gain Test. The study results showed that: 1) Regarding validity, the total percentage of the average value of media and material experts was 96%, categorized as "Very Valid." 2) Practicality is obtained by the total average percentage value of small-scale student responses, resulting in a score of 96%, which is categorized as "Very Practical." 3) Effectiveness is obtained from the T-test with Sig. 0.000, where <0.05 indicates a difference in students' scientific literacy and conceptual understanding before and after using comic media on the material of plant and animal reproductive systems. The N-Gain test obtained an average percentage score of 0.65, categorized as "Moderate." Based on these three results, it can be concluded that the development of comic media to improve scientific literacy and conceptual understanding of junior high school students in Central Halmahera Regency through the reading literacy program can be said to be feasible to be used to improve scientific literacy and conceptual understanding.
Development of Interactive Edugame Learning Media Based on Quartet Cards on Material on Changes in the State of Matter Purwaningsih, Ratna Chandra; Andriani, Aldina Eka
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.8445

Abstract

Teachers have not been optimal in varying interactive and concrete Edugame-based technology learning media. This study aims to describe the development design and test the feasibility and effectiveness of Quartet Card-based Interactive Edugame learning media for grade IV students of SDN Pesantren, Semarang City. This type of research is Research and Development (RnD) with the Borg and Gall model. The subjects of the study were 30 grade IV students of SDN Pesantren. Data collection techniques used tests (pretest and posttest) and non-tests (observation, interviews, questionnaires and document data). Data analysis techniques used normality tests, t-tests, and N-Gain tests. The results of the study showed: (1) Quartet Card-based Interactive Edugame Learning Media was developed using the Canva application with Kuartet Card box components, instructions for using Kuartet Cards containing the competencies achieved, main cards inserted with barcodes and modified cards in the form of boom cards containing questions as rewards and punishments; (2) The results of the feasibility of the material experts were 92.5%, media experts were 90%, teacher responses were 100% and student responses were 100% in the very feasible category; (3) The effectiveness of the Quartet Card-based Interactive Edugame learning media was shown by an increase in pretest and posttest results of 36.79%, supported by the results of the paired sample t-test with a sig. value. (2-tailed) <0.001<0.05, which means there is a significant difference, and the results of the N-Gain test were 0.778 in the high category. The conclusion of this study shows that the Quartet Card-based Interactive Edugame learning media was successfully developed, feasible, and effective in improving the learning outcomes of class IV students of SDN Pesantren Semarang City on the material of changes in the state of matter.
Effect of Acid Catalyst on Epoxydation Reaction of Nyamplung Seed Oil Saputri, Dita Ayu; Suhendra, Dedy; Gunawan, Erin Ryantin; Murniati, Murniati
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i1.6338

Abstract

Epoxy is a cyclic ether compound that contains an oxirane group and has been widely applied as a stabilizer, plasticizer in polyvinyl chloride (PVC), surfactant, pesticide raw material, and as a polymer resin coating. The raw materials in epoxy synthesis come from petroleum derivatives, which are non-renewable natural resources. Therefore, there is a need for alternative raw materials that can be renewed, such as vegetable oil. In this study, nyamplung seed oil was used. Epoxy synthesis is usually carried out using carboxylic acid epoxidation with the help of an acid catalyst. This research aims to determine the effect of the type of acid catalyst and its concentration on the epoxidation reaction of nyamplung seed oil and the characterization of the epoxy produced. The research results show that using an acid catalyst can increase the formation of oxirane groups at a certain concentration, where the highest oxirane number value was obtained when using the H2SO4 catalyst, namely 3.15%. The resulting epoxy is pale yellow, has a typical absorption area (COC) at a wave number of 825 cm-1, an iodine value of 13.96 g iod/100 g, a viscosity of 20.80 cP, and a relative per cent conversion to oxirane of 73.4 %

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