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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 6,214 Documents
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Teknologi Microbubble untuk Meningkatkan Pertumbuhan Ikan Lele (Clarias sp.) Bagus Dwi Hari Setyono; Lalu Wirahadi Al Baihaqi; Muhammad Marzuki; Lalu Mukhtar Atmawinata; Syawalina Fitria; Rangga Idris Affandi
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.v9i9.3433

Abstract

Catfish (Clarias sp.) is one of the economically important freshwater fish that has been widely cultivated both traditionally and intensively. Catfish has many advantages such as fast growth, resistance to disease, and can live in water conditions that are low in oxygen content. The use of microbubble technology is expected to support the performance of catfish farming with a biofloc system. With the application of this technology, it is hoped that the oxygen supply from micro-sized air bubbles will increase. Because the diameter of the air bubble is less than 50 µm, it is expected to last a long time in the water and can spread horizontally so that it can be utilized optimally by catfish and biofloc. The purpose of this study was to evaluate the effectiveness of microbubble technology on the growth performance of catfish. The research method used a completely randomized design, with 4 treatments and 3 replications. The variables measured during the study included survival rate, length and weight growth, specific growth rate, feed conversion ratio (FCR), and water quality including temperature, dissolved oxygen (DO), pH, ammonia (NH3), nitrite (NO2-), nitrate (NO3-), oxygen consumption rate (OCR), and total organic matter (TOM).
Hibridisasi Sintesis dan Uji Aktivitas Antikanker Turunan Baru Asam Karboksilat secara In-Silico dan In-Vitro Asyfariatus Zulfa Azhar; Warsito Warsito; Arie Srihardyastutie
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.v9i9.3439

Abstract

Design of new compounds as active ingredients of drugs must be selective and efficient to achieve therapeutic efficacy and minimize resulting side effects. Hybridization synthesis approaches using major components of essential oils can reliably generate new molecules that are superior as active ingredients of anti-cancer drugs due to their cytotoxic properties. This study synthesized a hybrid molecule of citronellyl salicylate by an esterification reaction using Steglich and Fisher method under ultrasonic assistance. The Steglich esterification is more efficient in producing citronellyl salicylate during 30 minutes reaction, yield 12.45%. Analysis of the synthesized product by FTIR is characterized by the presence of typical absorptions of the ester group at ῡ 1650 cm-1 and 1270 cm-1, while LC ESI-MS shows m/z 294 is indicated [M+NH4]+. Anticancer activity was tested in-silico for protein receptors MMP-9, MMP-2, Cyclin-A, p53, and BAK using Molecular Docking Pyrx 9.0 and the highest activity was shown binding affinity value -8.4 kcal/mol for the MMP-9 protein receptor. Similarly, the results of the in vitro activity assay of citronellyl salicylate to 4T1 breast cancer cells showed that the morphology of cancer cells was damaged and the viability of cancer cells was lower than that of normal cells
POTENSI PENGGUNAAN EKSTRAK DAUN SAGA (Abrus precatorius) sebagai ANTI BAKTERI Aeromonas hydrophila secara In Vitro Rahmalia Eka Kenitasari; Arief Prajitno; Arning Wilujeng; Genesia Gerrine
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.v9i9.3440

Abstract

Many diseases are caused by bacterial pathogens, for example, Aeromonas hydrophila. One alternative that can be done to overcome this problem is to use saga leaves (Abrus precatorius) which have bioactive ingredients as antibacterial ingredients. The aims of this study were to determine the antibacterial activity of saga (A. precatorius) leaf extract, to study the character and structure of bacteria inhibited by saga (A. precatorius) leaf extract and to study the bioactive components contained in saga (A. precatorius) leaf extract. The results of the disc test showed that the average inhibition zone was 14,29 mm while the MIC test results showed that at the dose 1 mg/L capable of inhibiting bacterial growth (bacteriostatic) and dose 10 mg/L It has been able to kill bacteria (bactericidal). Crude extract of saga leaf extract (A. precatorius) affects the character and structure of A. hydrophila bacteria by damaging the cell walls and cell membranes of bacteria. The results of Infrared Spectrophotometry analysis of saga (A. precatorius) leaf extract and Ultra Violet Spectrophotometry analysis with 96% absorption ethanol were suspected to contain flavonoid compounds
Analysis of Groundwater Quality in Rental Flats use Physical and Chemical Parameters Mohammad Agus Prayitno; Putut Marwoto; Sigit Priyatmoko; Deni Ebit Nugroho
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 11 (2023): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i11.3452

Abstract

The purpose of this study was to determine the physical and chemical quality of the groundwater in the Jerakah flats area and to determine the feasibility of the water as drinking water. This research was physically carried out by analyzing groundwater samples from the rented flats of the Jerakah sub-district based on the physical parameters of the air, including taste, color, smell, temperature, turbidity, and dissolved solids (TDS) as well as chemical parameters consisting of the degree of acidity. (pH), Nitrate Content (NO3-), Nitrite (NO2-), Hardness (CaCO3), Iron (Fe), Lead (Pb), Manganese (Mn), Zinc (Zn), Sulfate (SO42-), Cadmium (Cd), and Chromium (Cr). The results showed that the groundwater in the Jerakah flats had a normal pH, colorless, tasteless, odorless, low turbidity, and high dissolved solids (TDS). The levels of iron (Fe), manganese (Mn), chromium (Cr), zinc (Zn), cadmium (Cd), lead (Pb), and hardness are below the maximum hygienic sanitary limits. Manganese (Mn), Cadmium (Mn), Lead (Pb) levels exceed the maximum limit for drinking water. The groundwater in the Jerakah flat is suitable for use for hygienic sanitation, such as bathing and washing, but not suitable for drinking.
Upaya Remediasi Miskonsepsi Pada Materi Sel Menggunakan Model Pembelajaran Think Talk Write Naufal Ahmad Muzakki; Sariwulan Diana; Didik Priyandoko
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.3470

Abstract

In cell material, many concepts are abstract and can cause students to experience difficulties in understanding them. Every concept in biology learning is interconnected so that every concept that is built can influence the formation of the next concept. However, often students' initial concepts are misconceptions, namely the concepts possessed by students conflict with the concepts raised by experts. A good learning experience is needed so that students can understand the concept correctly. One learning model that provides a learning experience to discover and understand concepts is the Think Talk Write learning model. The purpose of this research is to remediate misconceptions about cell material by using the Think Talk Write learning model. This study used an experimental method with the type of pre-experimental research and one-group pretest-posttest research design. The subjects in this study were students of class XI IPA at SMA Muhammadiyah 5 Rancaekek consisting of 36 students. Based on the results of data processing, it was found that misconceptions in the pretest resulted in 12.78% and in the posttest it decreased to 6.25%. So it can be concluded that the Think Talk Write learning model can reduce students' misconceptions about cell material.
Analysis of Student Learning Difficulties in the Material of Inheritance of Traits Herinda Mardin; Aryati Abdul; Anita I. Sado
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.3473

Abstract

This study aims to describe student learning difficulties in inheritance material in class XII SMA Negeri 1 Tapa. This type of research is descriptive quantitative. Data collection techniques used teacher activity sheets, student activity sheets, learning outcomes tests, questionnaires and interviews. The results of the study found: The results of learning implementation at meetings 1 and 2 with a value of 82, 81%, with a good category, at meetings 3 and 4 with a value of 78, 78 with a sufficient category. The results of student activity at meetings 1 to meeting 4 with a value of 54, 17, 51.17, 51.69, 53.39% with a less category. The results of student responses with aspects of physiology and psychology with a value of 69.58, 60.24% with a sufficient category and aspects of sociology with a value of 55.47% with a very sufficient percentage. The results of the analysis of learning outcomes tests with a value of 96% incomplete. In conclusion, there are many students who experience learning difficulties in terms of physiological, psychological, and sociological aspects.
Workbook Fisika Menggunakan Representasi Multimodus pada Topik Gerak Harmonik Sederhana Metta Liana; Parlindungan Sinaga; Emiliannur Emiliannur
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.v9i9.3477

Abstract

This study aimed to produce teaching materials in workbooks using multimodal representations, which can effectively improve problem-solving and critical-thinking skills. The research method used is the research and development (R&D) method. Test the quality of the workbook developed through validation by three expert lecturers and ten teachers and test the legibility of the main ideas of the discourse by ten high school students. Meanwhile, to test the effectiveness of this research workbook using design randomized control group pretest-posttest design to 70 high school students, 35 each in the control class and 35 in the experimental class. The test results of students' problem-solving and critical-thinking skills were analyzed quantitatively using the N-gain and t-test with the help of SPSS. Based on the main idea's quality and understanding tests, the feasibility percentage of the workbook was 76.35% in the feasible category. Moreover, the effectiveness test results show that workbooks using multimodal representations significantly improve students' problem-solving skills and critical-thinking skills compared to worksheets that can be used in schools.
STEAM-Integrated Problem-Based Learning: Traditional Indonesian Music on Sound Wave Concepts Cristina Aurelia; Prima Warta Santhalia; Wahyu Hari Kristiyanto
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.3495

Abstract

Conceptual understanding is the level of a student's ability to understand a certain concept and explain it without altering the original meaning. This research aims to determine students' conceptual understanding by using STEAM-integrated Problem-Based Learning on sound wave material. "Mix methods" are used in this research, which is accompanied by an embedded experimental design. The research subject consists of 37 students in 11th grade at SMA Salatiga. Based on the results, it can be concluded that Problem-based learning (PBL) can increase students' conceptual understanding of sound wave material. This is proven by the results of the analysis on their conceptual understanding; where previously it consisted of the partial understanding category (5.41%), partial misconception category (10.81%), specific misconception category (48.65%), and no understood category (35.14%) – and after using STEAM integrated PBL – it consists of sound understood category (35.15%), partial understanding category (48.64%) and partial misconception category (16.21%). In the future, STEAM-integrated PBL can be implemented in other skills, especially the ones needed in the 21st century; such as critical thinking, creativity, communication, and collaboration.
Penggunaan e-modul Berbasis Isu Sosio-saintifik Dalam Upaya Meningkatkan Keterampilan Argumentasi dan Pengambilan Keputusan Siswa SMA Ghaida Sekarlita Fadha; Widi Purwianingsih; Rini Solihat
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.v9i9.3507

Abstract

The use of e-modules based on socio-scientific issues can be used as a way to provide argumentation and decision-making skills. This study aims to determine the use of e-modules based on socio-scientific issues in improving the argumentation and decision-making skills of high school students. This study used a quasi-experimental method. The research design used was the non-equivalent control group design. The sample in this study was class X students consisting of 132 people who were determined by purposive sampling technique. The research was conducted on two classes, namely the experimental class (learning using e-modules based on socio-scientific issues) and the control class (learning using modules not based on socio-scientific issues). The results showed that there was a significant difference in the mean between the experimental class and the control class in argumentation skills. The Mann-Whitney test on the value of argumentation skills shows a number (2-tailed = 0.000) < α (0.05) which means that there is a difference in the effectiveness of using socio-scientific issue-based e-modules with ordinary modules to improve students' argumentation skills. Then the results of the study showed that there was a significant difference in the average between the experimental class and the control class in student decision-making, shows that the Mann-Whitney test score on the value of argumentation skills shows the number (2-tailed = 0.000) < α (0.05) which means that there is a difference in the effectiveness of using socio-scientific issue-based e-modules with regular modules to improve student decision making. As for the criteria for the N-Gain score, the use of e-modules based on socio-scientific issues to improve students' argumentation skills is included in the moderate category (N-gain = 0.42), and the use of e-modules based on socio-scientific issues to improve student decision making is included in the medium category (N-gain = 0.56).
Convolutional Neural Network for Earthquake Ground Motion Prediction Model in Earthquake Early Warning System in West Java Melki Adi Kurniawan; Sastra Kusuma Wijaya; Nuraini Rahma Hanifa
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 11 (2023): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i11.3514

Abstract

As urbanization continues, more people and infrastructure are concentrated in areas that are at risk from earthquakes. This can increase the potential damage and loss of life when earthquakes occur. Indonesia is a region that is near the boundary of three major tectonic plates which has a very high frequency of earthquake occurrences. Over the past two decades, a new approach to earthquake disaster risk mitigation has emerged. It is based on the advent of digital seismology and advances in data transmission and automatic processing that make it possible to send warnings before the largest ground motion that called the Earthquake Early Warning System (EEW). On-site EEW is a type of EEW that consists of limited seismic stations located at a specific destination/infrastructure (for early detection systems). On-site EEW estimates ground motion parameters directly from the characteristics of seismograms recorded by the system. An artificial intelligence approach to EEW is necessary to increase the speed and accuracy of information, which increases processing time, especially in areas very close to the epicenter

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