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Saprizal Hadisaputra
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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 30 Documents
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Search results for , issue "Vol. 19 No. 2 (2024): March 2024" : 30 Documents clear
Effect of Light Intensity on Zebra Fish (Danio rerio) Cell Regeneration Darniwa, Adisty Virakawugi; Cahyanto, Tri; Rahayu, Savira Ngesti
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.4364

Abstract

Zebrafish (Danio rerio) is one of the model animals in cell regeneration studies because it has a high ability to regenerate tissue structures, one of which is its caudal fin. This study was conducted to determine the different light interventions on the regeneration of the caudal fin of zebrafish. The research method used is an experimental study with the observed parameters, including specific growth, absolute weight gain, length increase, and survival. A total of 28 male wild-type zebrafish were used in this study at the age of 3 months. The amputated zebrafish on its caudal fin was placed at different light intensities (control, 0 lux, 60 lux, and 90 lux). Parameter measurements were carried out every two days. ANOVA analyzed the data obtained with a significance level of 95%. The results showed that at a light intensity of 90 lux, the zebrafish tail fin regeneration was the most significant based on an increase in total length of 0.10 mm. Using a light intensity of 90 lux is the best condition in the regeneration process of the zebrafish caudal fin. The research findings could be further applied in the healing process of external wounds.
Comparing Three Methods for Producing Carbon Dots from Mangosteen Peel Sugiarti, Sri; Safitri, Idayu; Darmawan, Noviyan
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.4986

Abstract

Carbon dots are fluorescent nanoparticles that are around 10 nm in size. Carbon dots can be formed via pyrolysis, hydrothermal, and solvothermal procedures from raw materials such as mangosteen peels. Because it contains cyanidin and xanthone, which improve the intensity of carbon dot fluorescence, mangosteen peel waste can be utilized to make carbon dots. The presence of a urea passivation agent is expected to boost carbon dot luminescence intensity. The study aimed to develop carbon dots from mangosteen peel using three different methods: pyrolysis, hydrothermal, and solvothermal, and to assess their ability to produce luminous hues. Carbon dot yield was 21% by the solvothermal method, 5% by the hydrothermal method, and 2% by pyrolysis. All three methods produced blue carbon dot luminescence. The solvothermal method, hydrothermal procedure, and pyrolysis had the highest luminescence intensity. Adding urea as a passivation agent increased the luminescence of carbon dots. The solvothermal approach produced the highest carbon dot production and fluorescence intensity. The hydrothermal and solvothermal carbon dots made emissions at wavelengths of 413 nm and 454 nm, respectively, both corresponding to blue luminescence.
The Creation of A Three-Tier Multiple-Choice Diagnostic Test Instrument to Identifying High School Students' Misconceptions Regarding Biological Virus Material Sulistyoningrum, Puji; Ismail; Ali, Alimuddin
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.5393

Abstract

This study aims to develop a diagnostic test instrument with three tiers focusing on viral material. Research and Development (R&D) constitutes a form of applied research. The participants for the Field Test were Class X students at SMAN 22 Bone, while those for the subsequent test were Class X students at SMAN 19 Bone. Interviews and documentation serve as the primary research methods employed in this study. A three-tier multiple-choice format is characterized by three levels of questioning within the multiple-choice framework. The resultant diagnostic test instrument comprises three tiers: the first tier includes questions, the second tier offers alternative explanations, and the third tier assesses respondents' confidence levels in selecting answers and providing justifications. The outcomes of this research include answer keys, test questions, and question grids as integral components of the instrument. This study demonstrates the validity of the developed instrument through validation conducted by expert validators. The reliability test yielded a robust average value of 0.91. Only 24 out of the 40 questions were deemed valid during the field test phase. Findings revealed that students exhibited an average misconception rate of 47.2%, spanning two indicators derived from the 40 questions. Notably, misconceptions were prominent in the discussion sub-topic concerning the earliest discovery of viruses and methods for distinguishing viruses and bacteria, with an average misconception rate of 56.8% in viral material. Developing a three-tier diagnostic test effectively identified students' misconceptions regarding viral material, indicating suitability and efficacy for educational application.
Seagrass Meadow Conditions in Coastal Waters of Siwak Bay Central Lombok Destiana, Elvina; Candri, Dining Aidil; Ahyadi, Hilman
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.5519

Abstract

Seagrass is a flowering plant thriving in shallow sea waters and estuaries. Seagrass ecosystems are essential in supporting life in shallow seas as primary producers, biota habitats, sediment trappers, and nutrient trappers. Environmental factors affecting seagrass growth include temperature, salinity, pH, and substrate. The study was conducted in March-June 2023. This study aimed to determine the type and condition of seagrass beds in the waters of Siwak Bay. The method used in this study is the quadrant transect method at three research stations. There are seven types of seagrass identified, namely Thalassia hemprichii, Halophila ovalis, Cymodocea rotundata, Cymodocea serrulata, Halodule pinifolia, Halodule uninervis, and Syringodium isoetifolium. The percentage of total seagrass cover is at a value of 37%-61%, indicating that the condition of seagrass beds in the waters of Siwak Bay is included in the unhealthy category. The highest species density found at station III in Halodule pinifolia was 483.5 stands/m², and the lowest was found at stations II and III in Thalassia hemprichii and Cymodocea serrulata with 0 stands/m². The average density value of seagrass beds in the waters of Siwak Bay is very dense. The highest type frequency was found in Cymodocea rotundata, with a value of 2.53. The tallest species diversity and diversity index was found at station II with values of 1.56 and 0.8, respectively. In contrast, the highest dominance index was found at station I, with a value of 0.44.
Mollusca Biodiversity as A Quality Bioindicator Waters in Central Lombok Gerupuk Bay Coastal Area Berliana, Cok Gea; Candri, Dining Aidil; Ahyadi, Hilman
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.5520

Abstract

Various natural resource utilization activities on the coast of Gerupuk Bay can potentially affect the quality of the aquatic environment, both biotic and abiotic, one of which is mollusc biodiversity. This study aimed to determine the relationship between the existence of Mollusca biodiversity and water quality and substrate in Gerupuk Bay. This study used a quantitative descriptive method of determining stations using the purposive sampling method based on differences in community activities at each station. Sampling was conducted at three stations, including Mollusca samples and water quality measurements: salinity, pH, temperature, and substrate. Molluscs in Gerupuk Bay found 55 species of Mollusks representing three classes, namely the Gastropoda class, with as many as 44 species incorporated in 22 Families; the Bivalve class, as many as ten species contained in 6 Families; and the Scaphopoda class, with as many as one types incorporated in 1 Family. The composition of Mollusca classes found on the Gerupuk Bay Coast is Gastropoda class at 62%, Bivalve class at 35%, and Scaphopoda class at as much as 3%. Mollusca diversity is calculated using the Shannon-Wienner diversity index (H'). The diversity index results ranged from 2.890-1.998, with moderate categories at all stations. Bioindicators of water quality using the diversity index show that stations I and III categorize the Gerupuk Bay area as lightly polluted. In contrast, at station II, it is moderately polluted.
Formulation and Physical Evaluation of Papaya Leaf (Carica papaya L.) Ethyl Acetate Fraction Cream Preparation as Anti Acne Against Propionibacterium acne Bacteria Farda, Zais; Rahayu, Titi Pudji; Kiromah, Naelaz Zukhruf Wakhidatul
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.6146

Abstract

Acne or acne vulgaris is a disease in the form of inflammation of multiple sebaceous glands caused by the bacteria Propionibacterium acne. Papaya leaves are a plant that can potentially be used as an acne treatment. To determine the antiacne activity of papaya leaf ethyl acetate fraction cream preparations caused by Propionibacterium acne bacteria. The ethyl acetate fraction of papaya leaves are made into a cream preparation with varying concentrations of ten, fifteen, and twenty percent. The results of the cream preparation test met the physical property standards. Still, the viscosity in formulation three did not meet the standards, and formulas two and three did not meet the cream stability test standards. Antibacterial tests show that all formulas have inhibitory power against bacteria. The average inhibition zone results in formula one, formula two, and formula three were 4.99 ± 0.48 mm, 6.85 ± 0.48 mm and 10.12 ± 1.42 mm. Formula One papaya leaf fraction cream fulfills all the physical characteristics of the preparation. All papaya leaf ethyl acetate fraction cream preparations are antibacterial against Propionibacterium acne. So, research can be developed using the ethyl acetate fraction of papaya leaves in various preparations, and activity tests against other bacteria can be carried out.
Development of Teaching Module Devices Using A Differentiated Approach with An Inquiry-Based Learning Model in the Motion Kinematics Material Mamonto, Siti Nurhaliza; Buhungo, Trisnawaty Junus; Setiawan, Dewa Gede Eka; Supartin
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.6229

Abstract

This study aims to describe the feasibility of independent curriculum teaching modules implemented with a differentiated approach with inquiry-based learning models in a diversified learning environment and accomplish specific criteria for utilization to attain student learning outcomes. This research was carried out at SMA Negeri 1 Passi class XI-A Physics. This research uses the type of R&D (Research & Development) with a 4D development model (Define, Design, Development, and Disseminate) by Thiagarajan. Validity testing uses a validation worksheet during the expert appraisal development phase. The results of this study show that the validation of all learning tools obtained 86% to 88% in "valid" criteria, and it can be concluded that the teaching module devices developed were valid.
Total Flavonoid Content and In Vitro Anti-Inflammatory Potentials of Kombucha with Enrichment of Butterfly Pea (Clitoria ternatea) Flower Extract Wahyanto, Kharisma Nareswari; Agustini, Rudiana
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.6320

Abstract

Kombucha is a fermented beverage from tea (Camellia sinensis) that is claimed to be beneficial for several medical ailments. Several studies have conducted nutritional enrichment of kombucha to optimize its nutritional benefits. One of the native Indonesian plants that can be utilized as nutritional enrichment material is the butterfly pea (Clitoria ternatea) flower. Its nutrition is expected to increase the health benefits of kombucha Camellia sinensis. Kombucha has beneficial compounds such as flavonoids that have potential applications in medical chemistry due to its anti-inflammatory properties. This study aims to enrich the valuable nutrition and test the in vitro anti-inflammatory potentials of kombucha, conducted by formulating kombuchaCamellia sinensis with Clitoria ternatea flower extract addition (0; 0.5; 1; 1.5; 2)% (m/v), the chemical characterization including pH value test using digital pH meter and total flavonoid content (TFC) using colorimetric (AlCl3) assay) with quercetin as its standard, and in vitro anti-inflammatory activity test using the red blood cell (RBC) membrane stabilization method. The result showed that the pH value of kombucha had met the consumption quality standard (3-4), starting from 3,30 + 0,00 (0%) to 3,66 + 0,01 (2%). The flavonoid content increased from 38,89 + 0,05 mgQE/g (0%) to 126,73 + 0,13 mgQE/g (2%). Kombucha samples showed anti-inflammatory activity potentials with the best IC50 value of 140,22 ppm (2% addition). The data from this study were analyzed using a one-way ANOVA statistical test. It shows there is an influence from the addition of Clitoria ternatea to the TFC result (p<0,05), and it continued to Duncan's Multiple Range test (DMRT) that showed sample F0 to F4 were significantly different from each other (p<0,05). In conclusion, the enrichment of kombucha (Camellia sinensis) using Clitoria ternatea flower extract has been proven to increase the health-beneficial compound (flavonoids) and have potential anti-inflammatory activity.
The Effect of Natural Plant Growth Regulator Concentration of Indian Red Onions on the Growth of Euphorbia (Euphorbia geroldii) Flowers Mahfudhah, Dzikra Nasyaya; Anggarani, Mirwa Adiprahara
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.6363

Abstract

The euphorbia flower (euphorbia geroldii), widely used by the public as an ornamental plant because of its visual beauty, has an aesthetic function and health benefits that still need to be researched. The euphorbia genus has antimicrobial, antioxidant, and antidiabetic activity, which comes from its abundant terpenoid compounds, flavonoids, and other phytochemical compounds. Due to these high benefits, optimization of cultivation is carried out by adding phytohormones, better known as Growth Regulatory Regulator (PGR), further to increase the quality and quantity of euphorbia flowers so that the economic value will also increase in the realm of the agricultural industry. This research aims to analyze the effect of the natural PGR concentration of red onions (Allium cepa L.) on the growth of euphorbia flowers, including the parameters of the number of flowers on one tree, the time the buds appear, and the duration of flower survival. The research method used was quantitative experimental using a one-factor Randomized Block Design (RBD), namely testing the effect of several variations in PGR concentration (0%, 1%, 3%, 5%, 7%, and 10%) and statistically analyzed using SPSS. The results of the research show that all variations in PGR concentration have a positive effect on all parameters, where the PGR concentration of 10% indicates the highest increase, including the average number of flowers on one tree, which is 13 flowers, the average time for buds to appear is 2.5 times in one week. The average duration of flower survival is 139.5 hours. It can be concluded that the natural PGR of red onions has a positive effect on all parameters, with the highest results shown at a concentration variation of 10%.
The Graduate’s Portrait of Competence and Technology’s Mastery in Biology Learning Hutasoit, Leonard R.; Kismiati, Dyah Aniza; Setyawan, Danang Budi; Wahyuningsih, Tri; Nurdin, Gusti
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
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.v19i2.6408

Abstract

This survey research was conducted with the aim of knowing how the portrait of mastery of competence of Open University Biology Education study program graduates as biology teachers also their mastery of technology in learning. The graduates are junior high school teachers and high school teachers. The research sample was taken randomly until a sample of 94 graduates and 47 graduate users were obtained in various regions in Indonesia, such as Bogor, Central Jakarta, Pontianak, Serang, Cianjur, Pekanbaru and Bandung. The instruments used are questionnaire instruments with Likert scales and interview guidelines conducted to graduate users and graduates. Furthermore, the data is analyzed descriptively to get a portrait of mastery of competence and technology in learning. The results of the data analysis showed that the portrait of mastery of competence was categorized as very good / high, which was indicated by a value of 98.94% (graduate self-reflection) and 97.87% (assessment by graduate users). In addition, from the results of the analysis, it is also known that the portrait of mastery of technology in graduate learning is categorized as very good / high with a value of 91.49% (based on graduate self-reflection and assessment by graduate users)

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