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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 6,093 Documents
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Utilization of Bagasse as a Substitute for Coal Fuel in Steam Boilers Bidjaksono, Muhammad Brilliant; Sodri, Ahyahudin; Chalid, Dony Abdul
Jurnal Penelitian Pendidikan IPA Vol 10 No SpecialIssue (2024): Science Education, Ecotourism, Health Science
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10iSpecialIssue.8492

Abstract

Biomass utilization is believed to bring environmental and socio-economic benefits—PT X coal in a steam boiler. The research method used is a mix of quantitative and qualitative. The concentration of particulates that coal produces is higher than that of sugar cane bagasse. The NOx parameter values produced by bagasse and coal showed insignificant results. Meanwhile, coal boilers with higher temperatures produced higher NOx than NOx from biomass. The distribution concentration of SOx in bagasse biomass is higher than coal SOx emissions. A total of 26 communities agreed to change the use of coal to bagasse biomass. Utilization of bagasse biomass provides income of up to 94,000,000,000. Using bagasse as steam boiler fuel has a more positive impact than coal.
Implementation of the Gauss-Kronrod Quadrature Method (G7, K15) on 2D Gravity Anomaly Modeling in Basins with a Polynomial Variation of Density Distribution with Depth Zulhendra; Srigutomo, Wahyu; Hapsoro, Cahyo Aji
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.8493

Abstract

Forward modeling of 2D gravity anomalies, considering density contrasts that vary polynomially with depth, was performed to examine basin structures. This process involved two main stages: deriving analytical formulas and executing numerical integration. The Gauss-Kronrod Quadrature Method, utilizing 7 Gauss points and 15 Kronrod points, was employed to precisely compute these integrals. Initial modeling applied to theoretical basement scenarios with fixed density contrasts showed gravity anomalies that accurately reflected the curvature of the basement. To validate the approach, it was then applied to real-world cases including the Sebastian Vizcaino Basin, San Jacinto Graben, and Sayula Basin. By incorporating suitable density contrasts, modeling lengths, and basement curvature shapes, the results revealed that both fixed-density and depth-variable density models produced gravity anomalies with patterns consistent with the actual basement curvature. These findings validate the modeling technique’s effectiveness in representing real geological features accurately. The study confirms that the Gauss-Kronrod Quadrature Method (G7, K15) is robust for analyzing 2D gravity anomalies, providing a reliable tool for understanding the influence of varying density contrasts on gravity responses.
Evaluasi Pengelolaan Limbah Medis Padat di Rumah Sakit Universitas Andalas Khairil, Dewi Fortuna; Syah, Nurhasan; Barlian, Eri; Carlo, Nasfryzal
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.8494

Abstract

Medical solid waste management still faces obstacles several problems such as the lack of use of complete personal protective equipment (PPE) by officers and the absence of special routes for transporting waste. This study aims to evaluate medical solid waste management in hospitals. The method used was qualitative with a purposive sampling technique of 10 informants at the location concerned. Data was collected through in-depth interviews, field observations, and document review, then processed and analyzed using a triangulation table of sources and methods. Even though hospitals have SOPs that are socialized to staff, adequate human resources, funds, facilities and infrastructure, not all of them meet the requirements. The waste reduction process has not been implemented, TPHS B3 has been used as a rest area for officers, the sulo has not been closed because medical waste is buried in non-medical waste, and there is no waste transportation route available. The research results show that the management of medical and non-medical waste is not fully in accordance with applicable regulations. Therefore, it is recommended that hospitals reduce waste, monitor waste officers, and provide special routes for transporting waste in accordance with applicable regulations
Analysis of Coconut Agribusiness Development Strategy in North Minahasa Regency Kaunang, Rine; Taroreh, Mellisa L. G.; Ngangi, Charles R.; Mukhlis, Mukhlis
Jurnal Penelitian Pendidikan IPA Vol 10 No 7 (2024): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i7.8500

Abstract

The development of coconut in North Minahasa requires an appropriate and efficient strategy. This research aims to assess and analyze the conditions in the coconut agribusiness system in North Minahasa, outline the factors of IFAS (Internal Factors Analysis Summary) and EFAS (External Factors Analysis Summary) matrices, and provide policy recommendations related to the coconut agribusiness development strategy in North Minahasa. The research was conducted over a period of 9 months, utilizing both primary and secondary data. Primary data were obtained through the distribution of questionnaires, followed by Focus Group Discussions with respondents and direct interviews with coconut farmers, collector traders, and coconut processing industries (producing copra, flour, and coconut milk) in North Minahasa Regency, as well as business entities involved in the coconut agribusiness. Secondary data were obtained from relevant institutions such as the Central Statistics Agency, the Regional Agriculture Office of North Minahasa Regency, previous research journals, and related books. The research results, analyzed through a SWOT analysis of the Coconut Agribusiness Development Strategy in North Minahasa Regency, fall into quadrant I, indicating an aggressive strategy with coordinates (0.42:0.44), aligning with strengths and opportunities. The derived strategy is S-O (Strength-Opportunity), focusing on maintaining the availability of raw materials, the market for processed coconut products, human resources, and land suitability, with support from the local government to increase community income and expand coconut processed products into the international market.
Digital Teaching Materials to Improve Students' Reading Skills Based on Ruddell Taxonomy in Senior High School Wulansari, Keken; Cahyani, Isah; Sastromiharjo, Andoyo
Jurnal Penelitian Pendidikan IPA Vol 10 No SpecialIssue (2024): Science Education, Ecotourism, Health Science
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10iSpecialIssue.8509

Abstract

Digital teaching materials are essential in language learning, helping students understand reading. Reading comprehension can be obtained through the process of reading comprehension. Ruddell's taxonomy classifies reading comprehension levels into three groups, namely factual, interpretative, and applicative comprehension. This study uses Ruddell's taxonomy to determine the improvement of each reading comprehension level of public high school students in Bandung City after being treated using digital modules. This research used a quantitative method with a pre-experimental one-group pretest-posttest design. The subjects in this study were 10th-grade students in three public high schools in Bandung City, namely SMAN 1 Bandung, SMAN 19 Bandung, and SMAN 20 and non-test. Data analysis techniques in this study used quantitative analysis, which consisted of descriptive statistical analysis and inferential analysis. The data were tested for normality prerequisites, then continued with the nonparametric technique of the Wilcoxon test using the SPSS 24 application. The improvement of students' reading ability was known through the Normalized Gain test. The results showed a high-category increase in interpretative comprehension, a medium-category increase in applicative comprehension, and a low-category increase in factual comprehension. The treatment, with the help of digital teaching materials, caused a rise in students' reading skills.
Prostate Anticancer Activity Testing α Mangostin Invitro Study on Sel DU 145 Using WST 8 Method Dewi, Rai Chika; Alaydrus, Syafika; Wahyuhandayani, Tien
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.8517

Abstract

Prostate cancer is a cancer that has a high risk of death. Prostate cancer, specifically prostate adenocarcinoma, arises from the cells in the prostate gland or its peripheral zone. Chemotherapy, radiation therapy, and surgery are the main treatments for prostate cancer today. Empirical evidence shows that α-mangostin is used as a cancer therapy. At every stage of carcinogenesis, including cell division, proliferation, apoptosis, inflammation, and metastasis, α-mangostin can inhibit it. This study aims to evaluate the activity of α-mangostin against the DU145 prostate cancer cell line, and compare the %survival rate between cisplatin and α-mangostin. The method used is cytotoxicity testing in vitro with the WST-8 method. The research results showed that α-mangostin had an IC50 value of 16.89 ppm, in the active category, IC50 of cisplatin was 4.69 in the active category. Then statistical analysis was carried out using GraphPad Prism versi9.0.0 The results obtained were no significant differences between %survival rate cisplatin and α-mangostin at a concentration of 12.5 ppm. The conclusion of this study is The IC50 values of α-Mangostin and cisplatin against DU 145 cells were 16.89 ppm and 4.65 ppm, respectively. At a concentration of 12.5 ppm, there was no significant difference in their effects.
Anti-Cancer Activity Of The Combination Of Marine Mineral Consentrates And α Mangostin On Prostate Cancer Line DU 145 And HEK 293 By WST-8 Method Agustina, Giska Putri; Alaydrus, Syafika; Dewi, Niluh Puspita
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.8518

Abstract

Marine mineral concentrates have good activity against normal cells, but are less effective against cancer cells. This research was carried out by combining concentrations of sea minerals with natural ingredients that have anti-cancer potential, one of which is α-mangostin. This study aims to determine the IC50 of the combination of α-mangostin, marine mineral concentrate, the combination of α-mangostin & marine mineral concentrate when compared cisplatin and evaluate the activity of α-mangostin, KML and the combination of α-mangostin and KML compared with ciplatin against the DU 145 cancer cell line and HEK 293. The method used is cytotoxicity testing using the WST-8 method. The results of the test materials were α-Mangostin 16.89 ppm, the combination of α-Mangostin-KML with a concentration of 12.5 ppm, namely 1,732 ppm, the combination of α-Mangostin-KML with a concentration of 25 ppm, namely 4,930 ppm, the combination of α-Mangostin-KML with concentration of 50 ppm 5,194 ppm, and cisplatin 4,649 ppm. The results of data analysis show significant differences for all samples. Conclusion α-Mangostin helps KML increase the cytotoxic effect on DU 145 cancer cells and sea mineral concentrate helps reduce the cytotoxic effect of α-Mangostin on normal HEK-293 cells.
The Influence of Education and Training and Compensation on Teacher Performance Mediated by Loyalty Suwarga, Gantang; Rahman, Taufiq; Bintarti, Surya
Jurnal Penelitian Pendidikan IPA Vol 10 No SpecialIssue (2024): Science Education, Ecotourism, Health Science
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10iSpecialIssue.8520

Abstract

Education is carried out with the aim that the potential of students can develop, students become people who believe and are devoted to God Almighty, have noble morals, are in good health, have knowledge, are capable, have creativity, can be independent, and can become good citizens, responsible and democratic. Teachers who are passionate about teaching can easily improve their performance at work, providing compensation to teachers can also improve teacher welfare and have an impact on teacher performance.  This research aims to determine the influence of education training and compensation on teacher performance mediated by loyalty. This research used a quantitative method with a population and sample of 170 teachers in the MTS Tambun Selatan sub-district. The research results show that education and training do not significantly affect teacher loyalty in MTS in Tambun Selatan District. Then compensation has a positive and significant effect on teacher loyalty in MTS throughout Tambun Selatan District. Education and training positively and significantly affect teacher performance in MTS throughout Tambun Selatan District. Compensation has a positive and significant effect on teacher performance in MTS throughout Tambun Selatan District. Teacher performance has a positive and significant effect on teacher loyalty in MTS throughout Tambun Selatan District.
Characteristics of Production Factors and Production of Zero Tillage System Rice Farming Mukhlis, Mukhlis; Ismawati, Iis; Sillia, Nova; Fitrianti, Siska; Ukrita, Indria; Wisra, Raeza Firsta; Raflis, Hidayat; Hendriani, Riva; Hanum, Latifa; Ibrahim, Hasan; Nofianti, Sri; Marta, Andrik; Sari, Nila
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.8542

Abstract

Zero tillage system is able to prepare the land for plants to grow and produce well by paying attention to the ecological balance of the environment, especially water and soil. The purpose of this study was to determine the characteristics of production factors and production characteristics of rice paddy farming with no-tillage system. This research used descriptive method, conducted in Taram village, Harau sub-district. Sample determination using snowball sampling method, with a total sample of 50 farmers. Data collection by interview using questionnaires for primary data and documentation method for secondary data. Data analysis used qualitative descriptive analysis with a triangulation approach. The results showed the characteristics of production factors include: paddy field area 0.25 - 2.0 ha, seed requirement 8 - 60 kg/acre, compost fertiliser 0.25 - 2 tonnes/acre, Urea fertiliser 25 - 200 kg, NPK Phonska fertiliser 25 - 200 kg, herbicide 1 - 3 litres, insecticide 1 - 2 litres, labour consists of labour within the family and labour outside the family, including: Labour and female labour, and capital consists of cash, hoes, and knapsack sprayers. The amount of farm labour can be reduced by up to 145%, especially in land preparation activities, because there is no tillage and only spraying of residual rice stalks and weeds. Rice production characteristics: Total production of 800 - 6,200 Kg/acre, with an average of 2,262.80 Kg. The selling price of rice production was IDR 7,500/kg - IDR 7,800/kg, with an average of IDR 7,710/Kg.
Effectiveness of High-Altitude Environments on Cardiovascular Ability: A Literature Review Gusfiani, Amelia; Welis, Wilda; Komaini, Anton; Zulbahri, Zulbahri; Rahman, Dally; Zarya, Fiky
Jurnal Penelitian Pendidikan IPA Vol 9 No SpecialIssue (2023): UNRAM journals and research based on science education, science applic
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9iSpecialIssue.8544

Abstract

The problem is a lack of a deep understanding of how living at high altitudes affects cardiovascular ability significantly. The purpose of the study was to analyze the effectiveness of living at high altitudes on improving cardiovascular ability based on a systematic literature review. This review includes an analysis of the results of the study which includes improved oxygen transport, physiological adaptation, and long-term effects on heart and vascular health. The results of this review provide insight into the potential benefits and relevance of living at high altitudes in the context of improving cardiovascular health, as well as its implications in the field of sport and public health. The methodology used is a systematic literature review that collects and analyzes the existing literature on the effects of living at a high altitude on cardiovascular ability. The result is that Living in a highland place has been proven to increase immunity. This is due to physiological adaptations that occur in response to environments with lower oxygen content. These adaptations include an increase in the number of red blood cells and oxygen transport capacity in the body, which in turn improves aerobic ability and cardiovascular endurance. Studies show that long-term exposure to high altitudes can result in improved athletic performance and cardiovascular ability in individuals who live or train at these altitudes. The conclusions of this study suggest that living at high altitudes can improve cardiovascular ability through significant physiological adaptations

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