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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 20 Documents
 1   2 
Search results for , issue "Vol. 21 No. 2 (2026): in Progress" : 20 Documents clear
Synthesis of Gold Nanoparticles Using Ascorbic Acid Bioreductor and Its Effect on Human Blood Pressure Aisyah Cici Dwi Rahmadhani; Titik Taufikurohmah
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.11331

Abstract

Blood pressure is an important factor in the circulatory system and should be within the normal range of 90-140/60-90 mmHg. Blood pressure imbalances, such as hypertension and hypotension, can be caused by an unhealthy lifestyle, poor diet, or chronic illness. These conditions can trigger oxidative stress, which is an imbalance between the production of free radicals and the body's ability to neutralize them. Oxidative stress can damage cells and tissues, including blood vessels. Therefore, antioxidant intake is needed to help prevent further damage and maintain stable blood pressure. One innovative approach in blood pressure management is the use of gold nanoparticles, which have antioxidant activity. This study aims to characterize gold nanoparticles (AuNPs) synthesized using ascorbic acid bioreductors and examine the effect of their injection on human blood pressure. Characterization was performed using UV-Vis and Transmission Electron Microscopy (TEM), showing a maximum wavelength of 523.50 nm and an average particle diameter of 6.45 nm. Gold nanoparticles were injected intravenously at a dose of 200 mL every week. The results of the study indicate that the administration of gold nanoparticles significantly lowers blood pressure, as shown by the Paired T-Test, which shows an average decrease of 12.6 mmHg (95% CI: 5.1–20.1) and a p-value of 0.004. Based on the blood pressure trend graph, it was found that hypertensive volunteers' blood pressure decreased to normal levels, hypotensive volunteers' blood pressure increased to normal levels, and volunteers with normal blood pressure remained stable. Microscopic analysis showed a higher number of white blood cells in hypertensive volunteers compared to volunteers with normal blood pressure.
Effect of Praener in the Contextual Teaching and Learning Model on the Sciences Learning Outcomes of Elementary School Students Mely Rohmawati; Yuni Ratnasari; Sekar Dwi Ardianti
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.11544

Abstract

Science education at the elementary school level requires a connection between students' direct experiences and scientific concepts in order to create meaningful understanding. Although the Contextual Teaching and Learning (CTL) model has been widely implemented to improve learning outcomes, most studies still focus on the core stage of learning and do not clearly emphasize strengthening the early phase as a systematic strategy to prepare students' cognition. This gap is the background for this study, which aims to evaluate the novelty of Praener (energy practices) as reinforcement of the early phase in the CTL model to build initial schemas and conceptual bridges before the implementation of core learning. This study aims to analyze the use of Praener in the CTL model on the science learning outcomes of third-grade students regarding the introduction to energy forms. The method used was a quantitative approach with a one-group pretest-posttest pre-experimental design involving 23 third-grade students at SD 4 Gondangmanis in the 2025/2026 academic year. Data were collected through tests, observations, interviews, and documentation, then analyzed using a paired sample t-test and N-Gain test. The results of the study showed a significant difference between the pretest and posttest scores, with an average increase from 48.95 to 83.65 and an N-Gain score of 0.6948, which is classified as moderate (quite effective). This improvement occurred evenly across cognitive levels C1 to C6 and was particularly high in process skills. These findings confirm that Praener is effective in strengthening cognitive readiness and have practical implications for teachers, who can systematically integrate early experiences into CTL learning to make it more contextual and meaningful.
The First Record of Anax parthenope (Selys, 1839) (Odonata: Aeshnidae) from the Outskirts of Jamshedpur, Jharkhand, India Raja Ghosh; Md Abu Imran Mallick; Shaba Alam Ansari
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.11570

Abstract

Odonates are widely recognized as effective bioindicators of freshwater ecosystem health, yet their diversity and distribution remain inadequately documented in several parts of eastern India. Anax parthenope (Selys, 1839) (Odonata: Aeshnidae), a broadly distributed species across Asia, Europe, and Africa, has limited confirmed records from this region. The present study aims to document the first confirmed occurrence of A. parthenope from the outskirts of Jamshedpur, Jharkhand, India. An adult male was opportunistically observed and photographed near a semi-permanent freshwater body at Kudada village (22.7076° N, 86.2033° E) in October 2020. Species identification was achieved through comparative morphological analysis using standard taxonomic keys, focusing on diagnostic characters of the thorax, abdomen, and anal appendages. This record represents a new locality for the species in Jharkhand and extends its known distribution within eastern India. The finding underscores the ecological value of peri-urban wetlands as habitats for odonates and highlights the need for systematic, long-term surveys to improve baseline data on odonate diversity and support freshwater biodiversity conservation in the region.
Induced Ovulation and Spawning in African Catfish (Clarias gariepinus) Using Different Doses of Ovaprim Fouzi A. Mohamed; Ramzy A. Yousif; Ahmed A. Mohamed; Babeker I. Osman; Tajaldeen M. Abdalmwla
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.11681

Abstract

The African catfish (Clarias gariepinus) is a cornerstone of tropical aquaculture, yet its reliance on induced spawning requires optimized hormonal protocols and broodstock management. This study investigated the effects of varying Ovaprim dosages and female-to-male broodstock ratios on the spawning success of C. gariepinus at the Fish Hatchery Unit, Sudan University of Science and Technology. Three treatments were evaluated: Treatment 1 (2:3 male : female ratio, 3.3 ml/kg Ovaprim), Treatment 2 (1:3 male : female ratio, 5 ml/kg Ovaprim), and Treatment 3 (2:3 male : female ratio, 3.7 ml/kg Ovaprim). Broodstock were conditioned for one week and fed a 2.5% body weight diet twice daily. The hormone was administered via intramuscular injection, and reproductive parameters, including latency period, ovulation rate, fertilization rate, and hatchability, were recorded. Data were summarized using descriptive statistics and one-way analysis of variance (ANOVA) to determine differences among treatments. The results demonstrated that Treatment 2 yielded significantly superior results, achieving a 50% larval production rate and a 10% survival rate, whereas Treatments 1 and 3 failed to produce any hatched larvae despite successful fertilization. This suggests that a 1:3 male-to-female ratio combined with a higher dosage (5 ml/kg) may overcome environmental or physiological latency in the Sudanese context. These findings emphasize the necessity of balancing hormonal induction with appropriate sex ratios to ensure hatchery sustainability.
Development of IPA Learning Module Using STEMK WASAKA Learning Model to Improve Learning Outcomes Rabiatul Adawiyah; Syubhan Annur; Mella Mutika Sari
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.10086

Abstract

The way students learn science at SMP Negeri 1 Tabunganen is mostly through lectures and is teacher-focused, which leads to poor learning results, students not being actively involved, and trouble understanding the human digestive system. Because of this, researchers decided to create a science learning module using the STEMK WASAKA model, which emphasises responsibility, discipline, and cooperation. The study aims to check if this module is valid, practical, and effective for teaching the human digestive system. The method used was Research and Development (R&D) with the ADDIE model (Analyze, Design, Development, Implementation, and Evaluation). The students involved were from the eighth grade at SMP Negeri 1 Tabunganen. Data was collected using expert validation sheets, student feedback questionnaires, and pretests and posttests. The results showed that the module had moderate validity (average score of 0. 758), high reliability (α = 0. 745), very high practicality (86. 91%), and sufficient effectiveness with an N-gain value of 0. 65. Therefore, the STEMK WASAKA-based science learning module is considered valid, practical, and effective enough to help improve student understanding of the human digestive system.
The Effectiveness of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) and NSAID-Analgesic Combinations in Optimizing Postoperative Pain Management: A Review Elsyifa Salsabila; Mally Ghinan Sholih; Diyanah Fauziah Tamimah
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.10654

Abstract

Postoperative pain is a common clinical problem resulting from tissue trauma and inflammatory responses, which can hinder patient recovery. One of the most widely used pharmacological therapies is Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), either as monotherapy or in combination with other analgesics. This study aims to evaluate the effectiveness of NSAIDs, both as single agents and in combination therapy, in reducing postoperative pain. The study employed a Systematic Literature Review (SLR) method, with literature searches conducted in the PubMed and Google Scholar databases. A total of 588 articles were identified, of which 20 studies met the inclusion criteria and were analyzed using a narrative synthesis approach based on pain intensity parameters, including the Visual Analog Scale (VAS) and Numeric Rating Scale (NRS). The results indicate that NSAIDs such as ketorolac, ketoprofen, ibuprofen, diclofenac sodium, and dexketoprofen trometamol effectively reduced postoperative pain intensity, with several studies reporting a decrease in VAS scores from moderate pain levels (VAS >4) to mild pain levels (VAS <2) within 24 hours postoperatively. Furthermore, combination therapy of NSAIDs with paracetamol or tramadol demonstrated superior analgesic efficacy, longer pain-free duration, and reduced opioid requirements compared to NSAID monotherapy, without a significant increase in adverse effects. NSAIDs are effective in postoperative pain management. Combination therapy with other analgesics such as paracetamol or tramadol provides more optimal outcomes compared to monotherapy. However, the selection of analgesic agents, dosage, and duration of therapy should be individualized according to the patient’s clinical condition to ensure both safety and therapeutic effectiveness.
Kombucha from Edible Plants as a Functional Beverage with Hypoglycemic Potential: A Review Nadya Treesna Wulansari; Ni Wayan Kesari Dharmapatni; Ida Ayu Manik Damayanti
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.10668

Abstract

Diabetes mellitus (DM) is an endocrine disorder caused by a deficiency or ineffective production of insulin by the pancreas, leading to abnormal blood glucose levels. Hypoglycemia is a significant complication of diabetes therapy, referring to the condition or mechanisms that lower blood glucose levels. Kombucha is a functional beverage known for its health benefits, particularly its potential to reduce blood glucose levels. The data collection strategy used in this review was a systematic review.  Ten articles were used in this systematic review. Several plants, including sappan wood, Rhizophora mucronata leaves, snake fruit, Cyperus rotundus L. rhizomes, black tea, green tea, Solanum betaceum Cav., strawberry, Syzygium polyanthum (Wight) Walp. leaves, and red ginger, have demonstrated potential hypoglycemic effects. The mechanisms involved include inhibition of α-glucosidase enzyme activity, reduction of fasting plasma glucose (FPG), and decreased blood glucose concentration. The presence of secondary metabolites in these plants, combined with the fermentation process involving microorganisms, contributes to their antidiabetic potential through hypoglycemic mechanisms and α-glucosidase inhibition.
Chemical Profiling of Scoparia dulcis L. Leaf Ethanol Extract and In Silico Antiaging 2Y9X Inhibitor Study Anjani Fadia Putri; Tukiran Tukiran
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.11619

Abstract

The intensity of UV radiation that is quite high in the tropics can make the skin age quickly, such as wrinkles, dry, dull skin, or dark spots. In Indonesia, it turns out that 76% of women experience premature aging in this way. The cause is exposure to UVA and UVB radiation, which triggers the production of Reactive Oxygen Species (ROS). Many local plants have been researched for anti-aging, but no one has discussed the anti-aging activity of Scoparia dulcis L. Previous research indicates that Scoparia dulcis L. leaves exhibit antibacterial, antimicrobial, antioxidant, anti-inflammatory, and antidiabetic effects. Therefore, this study aimed to identify potential anti-aging compounds in the ethanol extract of Scoparia dulcis L. leaves as inhibitors of tyrosinase enzyme (PDB ID: 2Y9X), which plays a role in melanin production. Plant material was macerated to preserve flavonoid compounds. Chemical profiling of the extract was analyzed using LC-MS, which identified 104 secondary metabolite compounds. Then, use an in silico approach through molecular docking with AutoDock Vina to evaluate anti-aging compounds in the ethanol extract of Scoparia dulcis L. leaves. The docking results indicated that six compounds showed promising inhibitory potential, with binding affinities better than that of the positive control (-6.0 kcal/mol). These compounds were vanillic acid (-6.2 kcal/mol), caffeic acid (-6.0 kcal/mol), scopoletin (-6.4 kcal/mol), scoparone (-6.2 kcal/mol), jasmonic acid (-6.2 kcal/mol), and budlein A (-6.2 kcal/mol). The six compounds were also analyzed again using Lipinski's Rule of Five so that they could be used as a reference for further experiments for oral drugs. As a result, all of six compounds met that rule and had a smaller bond affinity value than the positive control.
Effect of Guided Inquiry Learning Model Through Ice Cream-Making Experiments on Students Higher Order Thinking Skills (HOTS) Arinda Salsabila Putri; Fitria Wulandari
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.11622

Abstract

Developing Higher Order Thinking Skills (HOTS) has become an important focus in elementary science education because students are expected not only to understand concepts but also to analyze, evaluate, and create solutions to real-life problems. This study aims to examine the effect of a guided inquiry learning model implemented through ice cream-making experiments on the Higher Order Thinking Skills (HOTS) of fourth-grade elementary school students. The research employed a quantitative approach with a nonequivalent control group quasi-experimental design. The participants were 53 fourth-grade students, including 25 in the experimental class and 28 in the control class. The experimental class received guided inquiry-based experimental learning, while the control class was taught using conventional methods. Students' higher-order thinking skills were assessed using essay exams that focused on three areas of advanced thinking: analyzing, evaluating, and creating. These tests were given before and after the learning period to measure progress. The data were checked for normality and homogeneity before conducting the independent-samples t-test. The results showed that the data followed a normal distribution and had similar variability, meeting the requirements for hypothesis testing. The t-test results showed a very low significance value of 0.000, which is less than 0.05. This indicates a significant difference in HOTS scores between the treatment and control groups. The experimental group scored higher, on average, in HOTS (88.10) than the control group (77.86). The average difference of 10.24 points shows a big improvement in the experimental group's ability to think critically and solve complex problems. The results show that using the guided inquiry learning method with ice cream-making experiments helps students improve their higher-order thinking skills in a meaningful way. Therefore, guided inquiry-based experiments can be an effective and relevant way to help students develop higher-order thinking skills in elementary science classes.
Influence of Gravity-Induced Axial Force on the Natural Frequencies of an Inclined Cantilever Beam Ananta Kusuma Yoga Pratama; Sunarko Sunarko
Jurnal Pijar Mipa Vol. 21 No. 2 (2026): in Progress
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.v21i2.11634

Abstract

The limitations of conventional horizontal cantilever models in capturing gravity-induced axial effects in inclined structures that influence stiffness and natural frequencies. This study investigates the influence of gravity on the dynamic behavior of an inclined cantilever beam, with particular emphasis on a 10-m steel beam configuration. Unlike conventional horizontal cantilever models, structural inclination generates a spatially varying axial compressive force that increases from zero at the free end to a maximum value at the fixed support. The objective of this study is to analyze how this gravity-induced axial force distribution affects the natural frequencies and effective stiffness of the beam. To achieve this, a high-fidelity numerical model was developed in MATLAB, where the beam was discretized into 100 Euler–Bernoulli elements to capture the gradual variation of axial load and the resulting geometric softening effect. The analytical formulation is based on the Rayleigh–Ritz method, in which the spatial axial force distribution  is incorporated into the potential energy expression. The predicted natural frequencies were validated through frequency-domain analysis of the transient response obtained from numerical simulation. Both analytical and numerical results indicate that, for an inclination angle of 60°, the first and second natural frequencies are approximately 1.84 Hz and 11.61 Hz, respectively. These results demonstrate that beam inclination significantly reduces the effective structural stiffness due to gravity-induced geometric softening. The findings highlight the importance of incorporating spatially varying geometric stiffness in the dynamic analysis, stability assessment, and vibration-sensitive design of large-scale inclined cantilever structures.

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