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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 6,421 Documents
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Profil Sikap Ilmiah Peserta Didik Melalui Kegiatan Praktikum Menggunakan E-LKPD Berbasis Bahan Kimia di Rumah Febri Saputri; Eli Rohaeti; Antuni Wiyarsi; Jaslin Ikhsan
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 5 (2022): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i5.2094

Abstract

Students’ competencies in the 21st century can be achieved if the students have various skills and scientific attitudes. Scientific Attitude will affect students' minds or memories and actions that require in making decisions and problem-solving in the future. So, the aim of this study was to describe the profile of students' scientific attitudes through Practicum Activities Using Student E-Worksheet Based Chemicals at Home. This research used a descriptive quantitative method. The research was conducted in Budi Mulia Dua senior high school, Yogyakarta, Indonesia, at the last of the first semester of the academic year 2021/2022. The observation involved 15 of tenth-grade students as the participant. The data was collected using an observation sheet which was developed based on students' scientific attitude aspects. The instrument has been validated by expert learning lecturers so that it is feasible to use. The data obtained from the students were analyzed descriptively and quantitatively. The results of students’ scientific attitudes were in the good category ie. 75.8%. Therefore, teachers need to innovate the learning process in order to improve students' scientific attitudes
PENGARUH FORMULASI BAHAN EDIBLE COATING DAN LAMA PENYIMPANAN TERHADAP RESPON BUAH TOMAT (SOLANUM LYCOPERSICUM L.) DI SUHU PENDINGINAN (Lycopersicon esculentum Mill) Yudi Garnida; Yusman Taufik; Yelliantty Yelliantty
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 5 (2022): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i5.2101

Abstract

Post-harvest handling of horticultural products is very influential on product quality, because storage temperature is one of the important factors to maintain product quality, especially fresh fruits and vegetables. The purpose of this study were to determined the effect of calcium chloride concentration (CaCl2) and starch type as edible coating material against inhibition of chilling injury of tomato. The research method were carried in two stages, namely the preliminary research and main research. The preliminary research was conducted to determine the temperature and time of starch drying.  The main research using Randomized Block Design (RAK) method with 3x4 factorial with 2 replications. The first factor was chloride calcium concentration consisting of 3 levels of a1 (1%), a2 (2%) and a3 (3%). The second factor is type of starch as edible coating material which consists ogf 4 levels of b1 (without edible coating), b2 (sweet potato starch), b3 (cassava starch) and b4 (ganyong starch). The main research responses include chemical responses (vitamin C and total soluble solid), physical responses (weight loss and firmness), and organolptic reponses (color and appearance). Preliminary research results were obtained the temperature of 60 ° C and the best 5 hours for starch drying. The main research results showed that the concentration factor of calcium chloride (A) affected the color and appearance either on day 5 or day 10. The type of starch as an edible coating material (B) had an effect on vitamin (C) content, total soluble solid, color and appearance on day 5 and day 10. Factor interaction of calcium chloride concentration and type of starch as edible coating material influenced to shrinkage oweight, color and appearance on day 5 and day 10. Ganyong starch has better results based on the response of vitamin C, total soluble solid and weight loss.
Design of PCF-SPR for Early Detection of Skin Cancer Infected Cells Dedi Irawan; Khaikal Ramadhan; Azhar Azhar
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 5 (2022): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i5.2120

Abstract

In this work, we carried out a numerical investigation of the PCF-SPR biosensor for the early detection of infected skin cancer cells and healthy cells. The study was conducted using the COMSOL Multiphysics-based FEM method. The dielectric material used in this PCF design is fused silica, while the plasmonic material is gold. The study was conducted to test the effect of the thickness of the plasmonic layer and the size of the air hole diameter on the PCF-SPR. It was found that the larger the diameter of the air hole in the proposed sensor gives a smaller confinement loss value, while the thicker the plasmonic material used also gives a small confinement loss value. The proposed PCF-SPR has a wavelength sensitivity in detecting skin cancer-infected cells of 7000 nm/RIU. These results indicate that the proposed sensor has a good performance in detecting cells infected with skin cancer.
The Influence of POGIL and MFI Models on Science Literacy and Science Process Skills for Junior High School Sirry Alvina; Mellyzar Mellyzar; Syarifah Rita Zahara; Masrina Masrina; Sella Afrianti
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 4 (2022): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i4.2121

Abstract

This study aims to determine how the influence of the POGIL model on the ability of the science process and scientific literacy of students, in addition to knowing how the MFI model affects science process skills and scientific literacy of students and the comparison of POGIL and MFI models on science process skills and scientific literacy of Lhokseumawe City Junior High School students. This research uses an approach to quantitative research. The population of this research is the seventh-grade students of SMP in Lhokseumawe city. The research sample taken is SMPN students Arun, SMPN 1 Lhokseumawe, and SMPN 2 Lhokseumawe every 3 schools that consist of 2 experimental classes (POGIL and MFI models) and 1 control class (conventional) with a total of 9 classes. The research instrument used is a test question for knowing students' literacy skills, practicum guide sheets, and observation sheets to determine students' science process skills. In the class with the POGIL model, the average value of scientific literacy ability is 32.27, and science process skills are 81.32. In class with the MFI model, the average value of science literacy skills is 26.84, and process skills science 88.71. While the control class has an average value of scientific literacy ability of 12.77 and science process skills of 68.54. Based on Test Test output Statistics data of students' scientific literacy and science process skills are known as the value of asymp. Sig. (2-tailed) of 0.00 < 0.05, it can be concluded that the POGIL model has a significant effect on students' scientific literacy and science process skills.  The results for the MFI class scores of students' scientific literacy skills and science process skills, because of the Asymp value. Sig. (0.000) < (0.05) so that learning with the MFI model affects the scientific literacy ability and science process skills of students. Classes taught with POGIL and MFI models with Asymp grades. Sig. (0.099 > (0.05) means that there is no significant difference in students' scientific literacy skills between students who are taught with the POGIL model and students who are taught with the MFI model but there is a significant difference in science process skills of students with POGIL and MFI models, where the MFI model students' science process skills higher than the POGIL model
Socioscientific Issues (SSI) Strategy Adjacent to Ethnoscience: A Critical Analysis of Science Reconstruction Ahmad Khoiri; Moh. Irma Sukarelawan; Mohd Fauzi Sedon; Che Nidzam Che Ahmad; Sukarmin Sukarmin; Qori Agussuryani; Misbah Misbah
Jurnal Penelitian Pendidikan IPA Vol 8 No 5 (2022): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i5.2128

Abstract

Low students' reconstruction skills in understanding science through local issues in society. The purpose of the study was to analyze the categorization of science reconstruction skills and test the effectiveness of the ethnoscience-adjacent Socioscientific Issues (SSI) strategy. Type of quasi-experimental quantitative research with independent sample type t-statistical design. Purposive sampling technique with a total of 65 high school students from 3 different schools clustered, namely schools in the village category, intermediate category, and city category. School categories are based on mileage from the city center. The data collection tool uses student science reconstruction tests and SSI strategy implementation questionnaires. The effectiveness of the SSI strategy consists of pretest and post-test data of students' science reconstruction skills. Data analysis techniques use the t-test and Manova test. The results showed that the categorization of students' science reconstruction skills was dominant in the Other Smart Kids (OSK) category by a p-value of 0.026 < 0.05; Students felt unfamiliar with the culture being studied, even though students' knowledge of science increased. The MANOVA test obtained the results of the experimental class (known with KE) = 0.674 and the Fcount KE = 17.974, showing that the SSI strategy with ethnoscience proximity was very effective in empowering student's science reconstruction skills simultaneously (SMA A, B, and C) with significant influence. Research recommendations that science reconstruction skills give the meaning of learning about how to appreciate and preserve the traditions and culture of society as a formation of the nation's character.
Performance of Artificial Compared to Natural Coarse Aggregates as Road Pavement Materials Agus Winardi; I Dewa Made Alit Karyawan; Buan Anshari
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 4 (2022): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i4.2129

Abstract

Aggregates are the main material for road pavement made of natural stone. The availability of this natural stone will decrease because the stone is a non-renewable resource. The use of artificial aggregates can be an alternative to natural aggregates. The promotion of the use of waste as an artificial aggregates is starting to develop, especially with fly ash. Aggregates road materials must be tested to determine their characteristics by methods according to applicable standards. In this study, it can be seen that the aggregates of all quarries can be used as pavement materials, but the aggregates of the KB quarry show a poor flakiness index value. The test results of geopolymer-made aggregates made from fly ash showed that the abrasion and absorption values were not good. However, in general, it has good characteristics as road materials, so further research is needed to obtain geopolymer-made aggregates that meet the abrasion and absorption requirements for use as road materials.
Sensor PCF-SPR Terpolarisasi Ganda untuk Deteksi Alkohol pada Suhu Rendah Azhar Azhar; Khaikal Ramadhan; Dedi Irawan
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 5 (2022): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i5.2143

Abstract

We have observed a numerical simulation of the PCF-SPR sensor detecting alcohol concentration at low temperatures. The investigation was carried out using the finite element method on the PCF-SPR geometric structure. We use a simple geometry structure of the sensor by using fused silica and gold as the sensor’s core and plasmonic material. Observations were made in the alcohol concentration range of 15%, 40%, 60%, and 70%. In the literature, we find the refractive index of each alcohol concentration and input its value into the proposed sensor. The proposed sensor shows that the sensor has a sensitivity in detecting alcohol concentrations at low temperatures of 91 nm/%. In the end, we obtained the optimal sensor components and the sensor can detect the alcohol concentration at low temperatures
Magnetic Susceptibility Profile, Fe Content and pH Analysis of Apple Orchard Soil and the Relation to Fruit Diameter Siti Zulaikah; Yoyok Adisetyo Laksono; Dewi Ningsih; Ninik Munfarikha; Rizka Amirul Hikma
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 5 (2022): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i5.2144

Abstract

The measurement of magnetic susceptibility, pH, element concentration of Fe and apples diameter has been conducted in orchard soil of Malang, East Java Indonesia. The measurement was performed in two orchards, namely Pujon and Poncokusumo with two different kind of apples in each orchard. This research aimed at exploring in detail linked between magnetic properties, the existence of magnetic mineral as magnetic property carrier in the soil, soil pH, as well as the size of apple diameter to evaluate the quality of apple production in the both areas. The results shows that the soil with lower susceptibility, it was expected that the magnetic mineral of magnetic property carrier to be smaller, low soil pH, meaning that the soil was more acidic which implied on a larger size of apple diameter for Rumbeauty type of apple. Meanwhile, when the soil had a higher susceptibility, and it is expected that the magnetic mineral is also high as well as having high pH, this growing media is appropriate to develop Manalagi type of apple. Based on the observed soil magnetic properties and pH from both observed orchards, it can be suggested that Manalagi apple is appropriate to be planted in Poncokusumo area, while Rumbeauty is appropriate to grow in Pujon area.
HOTS about Environment and Designing Science Serial Books for Digital Learning in Elementary School Ilmi Zajuli Ichsan; Santhi Pertiwi; Yudi Hermawan
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 4 (2022): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i4.2153

Abstract

Environmental education is one of the important aspects of Higher Order Thinking Skills (HOTS)-based elementary school learning. The use of learning media for e-learning implementation requires HOTS-based evaluation. This study aims to perform analysis related to HOTS and the utilization of e-learning in elementary school (SD). The method used in the research is the descriptive method with a survey as the data collection technique. The research instrument is in the form of a test question to measure HOTS based on Anderson’s taxonomy and Ichsan’s taxonomy. The second instrument employed is a questionnaire containing questions related to learning and various obstacles in e-learning. The research finds that the average HOTS score of elementary school students measured using Anderson’s taxonomy is 2.58; whereas, those measured with Ichsan’s taxonomy is 2.27 for all items. The HOTS measurement results using both taxonomies have some differences and one of them is in the C6 realm (create versus develop). The measurement results using the questionnaire suggest that WhatsApp is the frequently-used learning media (65.97%). Moreover, the most ideal learning duration according to the students is less than 3 hours (67.36%). The utilization of learning media become an important matter in the implementation of e-learning to enhance elementary school students’ HOTS. Serial books are an alternative solution so that students can understand environmental material well. The research concludes that differences in HOTS scores occurred between those measured with Anderson’s taxonomy and Ichsan’s taxonomy. Learning media to be further developed should be HOTS-based
Identifikasi Spesies Reaktif yang Dihasilkan Plasma Nonthermal lucutan penghalang dielektrik permukaan dengan Variasi Sumber Gas (Udara, N2, O2) untuk Membunuh Bakteri Renaldo Apriandi Kasa; Unggul Pundjung Juswono; Dionysius Joseph Djoko Herry Santjojo
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 4 (2022): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i4.2167

Abstract

Non-thermal plasma is one of the new techniques that is being focused on in the medical world, one of which is used for sterilization because non-thermal plasma is known to have a bactericidal effect. Reactive species produced by non-thermal plasma are antimicrobial. One factor affecting plasma species' reactive composition is the gas source used. Therefore, this study aimed to determine the effect of reactive species produced from non-thermal plasma generation of SDBD using different gas sources, namely free air, oxygen, and nitrogen, in treating Escherichia Coli bacteria. The gas flow used is 1 liter/minute. Reactive species produced by plasma were characterized using Optical Emission Spectrometry (OES). SDBD Non-thermal plasma treatment for Escherichia Coli bacteria samples was repeated three times for each treatment, and then the Anova test was performed. The results of this study indicate that bacterial death at the decontamination level depends on the composition of the gas used during treatment. Plasma using an O2 gas source has a more effective inactivation ability, namely 6 x 107 CFU/ml, compared to the control, which is 409 x 107 CFU/ml. At the same time, the treatment results with free air and nitrogen gas sources were 6.33 x 107 CFU/ml and 41.67 x 107 CFU/ml. These results indicate that the composition of ROS and RNS influences bacterial inactivation, where ROS is more effective in inactivating bacteria than RNS

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