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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 70 Documents
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Search results for , issue "Vol. 8 No. 2 (2022): April" : 70 Documents clear
Higher-Order Thinking Skills in Prospective Physics Teacher Kaharuddin Arafah; Ruslan Ruslan; Nurhayati Nurhayati; Aeman Hakim; Agriani Pongkessu
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1480

Abstract

The rules regarding the assessment carried out by teachers have been refined to match the demands of 21st-century learning, the aspect that has been improved is the cognitive aspect, specifically in the assessment of Higher Order Thinking Skills. However, prospective teachers and even teachers still have difficulty implementing this assessment. The purpose of this study was to determine the profile of the ability of prospective physics teacher students in solving Higher Order Thinking Skills questions as an initial description in identifying problems that occur. This research was a descriptive study to determine the profile of postgraduate students at Makassar State University, South Sulawesi. The research data was obtained through test technique. These questions consist of 40 sets of items, with indicators of analyzing, evaluating, and creating. It has been developed by researchers and validated by experts. The percentage of the score obtained is 68, 79, and 55% for indicators of analyzing, evaluating, and creating respectively. Therefore, Prospective physics teachers can still be said to be unsatisfactory in solving Higher Order Thinking Skills questions.
Breeding of Philemon buceroides by Synchronization of Pregnant Mare Serum Gonadotropine (PMSG) Reproductive Hormone and Estrogen as Conservation for Preventing Its Extinction M Yamin; Khairuddin Khairuddin; Padusung Padusung
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1482

Abstract

The research aims to figure out how to breed Philemon buceroides in captivity and make recommendations for conservation activities in-situ and ex-situ. Philemon buceroides are bred by giving the Pregnant Mare Serum Godadotrophin (PMSG) and Estrogen hormones and artificial insemination to birds who are sexually mature and physically healthy at least one year old. The birds in this study were Philemon buceroides that had been reared for at least a year to lessen stress. According to the researchers, the Philemon buceroides sample was acclimatized for 7 days in each birdcage. The treatment group was superovulated the next day to produce more eggs than normal, using PMSG hormone at a dose of 150 Im in 10 milliliters of ferologic Nacl / Kg BW once a day for three days. Only 10 milliliters of ferologic NaCl were given orally to the control group. The following day, lust/Estrus synchronization was performed utilizing the Estrogen hormone at a dose of 150 Im in 10 milliliters of ferological NaCl orally once a day for three days. Sperm was taken from male Philemon buceroides. As a result, synchronizing the reproductive hormones Pregnant Mare Serum Gonadotrophin (PMSG) and Estrogen in male and female Philemon buceroides considerably influenced the increase in ovulation, however the eggs generated by the mother Philemon buceroides have yet to produce chicks. Furthermore, obtaining male sperm is challenging. Just one sperm pulled out one drop from the three guys, while the other two did not
The Efficiency of Heavy Metal Analysis Method in Marine Fish Samples by Atomic Absorption Spectrophotometry Muti'ah Muti'ah; Jackson Siahaan; I Nyoman Loka; Jono Irawan
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1489

Abstract

This research studies the efficient method for heavy metal analysis in marine fish samples by atomic absorption spectrophotometry. The dissolution of the samples used the wet destruction technique in 2 ways. The first method uses a mixture of HNO3, H2SO4, HClO4 (1:2:1), and the second method uses a mixture of HNO3and H2SO4 (1:1). Tuna (Euthynnus affinis) was taken as Marine fish samples. The results showed that the first method took 180 minutes with a % recovery of 98.79% - 99.55%. In contrast, the second method took 240 minutes and a % recovery of 98.08% - 98.45%. The results of measurements by atomic absorption spectrophotometry (AAS) using standard calibration curve and standard addition techniques are as follows: using standard regression curve technique obtained Pb (0.664 ± 0.067) mg/kg, Cu (2.780 ± 0.01) mg/kg, Cd (0.192 ± 0.044) mg/kg, and Zn (1.824 ± 0.075) mg/kg, while the standard addition method obtained Pb (0.612 ± 0.016) mg/kg, Cu (2.364 ± 0.016) mg/kg, Cd (0.148 ± 0.029) mg/kg and Zn (1.692 ± 0.016) mg/kg. The calculation of the level of accuracy of the analysis showed that the standard addition method RSD gave a precision value of 0.97% - 3.76% and the standard curve method RSD with a precision of 5.76% - 31.77%. In conclusion, (1) Heavy metal content in tuna (Euthynnus affinis) is still within the permissible limits. (2) wet digestion technique using a mixture of HNO3, H2SO4, HClO4 (1:2:1) can be more efficient. (3) The measurement results of the standard addition method give more precise results
Determination of Geothermal Fluid Characteristics in Pawan and Pendalian IV Koto Villages, Rokan Hulu Regency, Riau Province Using Geochemical Methods Rifa Lihayati; Muldarisnur Muldarisnur; Marzuki Marzuki
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1491

Abstract

Geothermal in Pawan and Pendalian IV Koto Villages is one of the post-volcanic geothermal areas in the Rokan Hulu Regency. This study aims to determine the characteristics of geothermal fluids and estimate reservoir temperature based on geothermometer estimation. The research method used in the study consisted of several stages, namely field data collection and fluid geochemical analysis. The research results from 12 hot springs plotted on the Cl-Li-B triangle diagram show that all hot water samples are dominated by Cl, indicating that the hot springs are far from the geothermal reservoir. The Cl-SO4-HCO3triangle diagram shows that all of the hot springs are bicarbonate water types dominated by HCO3. The Na-K-Mg triangle diagram shows that all fluid samples are in the immature water area, which indicates that the fluid has undergone a reaction with other elements or the influence of meteoric water is quite dominant. The results of calculations with a geothermometer, the estimated reservoir temperature in the geothermal area is in the range of 160.69°-176.76°C, which is included in the medium-temperature reservoir system. Geothermal in this area can be used as the geothermal potential for developing geothermal power plants.
Knowledge, Beliefs, and Attitudes of Junior High School Students in Palembang Towards Climate Change Issues Chairunnisa Chairunnisa; Ida Sriyanti; Meilinda Meilinda; Nyimas Aisyah; Ismet Ismet
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1502

Abstract

Climate change is one of the most pressing problems at all levels of government around the world, threatening the global economy as well as the very existence of planet earth. This study aimed to examine the knowledge, beliefs, and attitudes of Palembang City junior high school students on climate change. The research method used is qualitative research. Data were obtained through questionnaires. There were 744 junior high pupils in the study, ranging in age from 11 to 16. The results showed that students' initial knowledge about climate change was 65.73%, students' beliefs about the causes and impacts of climate change were 65.50%, and students' attitudes to mitigating climate change were 69.50%. Students' beliefs about climate change opinions are also influenced by the contribution of the general media by 34.50%.
Dispersi Kompensasi Kinerja Tinggi dengan Apodization Chirped Fiber Bragg Grating untuk Sistem Komunikasi Fiber Dedi Irawan; Azhar Azhar; Khaikal Ramadhan
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1521

Abstract

The effect of dispersion will interfere with the signal transmission. Several ways can be done in compensating the dispersion such as by utilizing dispersion compensator fiber (DCF) or chirp fiber Bragg grating (CFBG). The dispersion compensation schemes with DCF are expensive and it also causes nonlinear optical effects, meanwhile, the CFBG can reduce costs and promise better results. In this study, an Apodization Chirped Fiber Bragg Grating (ACFBG) has been developed as a dispersion compensator with Optisystem with non-return to zero (NRZ) 20 Gbps. It is found that the Gaussian Cubic-CFBG apodization with a size of 90 mm had the highest Q-factor evaluation of  20,776 dB for a 250 km dispersion compensation scheme. this result is much larger than the previous CFBG dispersion compensation scheme. This study also confirmed that the Gaussian Apodization was the best profile compared to Tanh Apodization, from the evaluation of the Q-factor, Tanh cubic-CFBG only obtained a Q-factor of 9.6 dB. Certainly, the high performance of ACFBG as a dispersion compensator is very useful to support optical communication systems
Implementasi Pendidikan STEM untuk Meningkatkan Hasil Belajar Siswa dalam Konsep Optik Azhar Azhar; Dedi Irawan; Khaikal Ramadhan
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1525

Abstract

This paper reports the implementation of the STEM learning strategy to the 20 physics students on optical physics concepts. Previously, student understanding on this subject was categorized as weak, this was caused by not only learning just carried out theoretically but also the student's limitation to figure out the optical phenomenon. This research is to identify the student learning outcomes before and after STEM implementation by using simple experimental work with a set of pre-test and post-test. The calculation results show that the student's outcome has a medium enhancement which is about 0.53. Certainly, a Stem learning strategy is a good choice as a teaching strategy in the Optical Physics subject.
Development of Learning Media for Wave Ripple Tanks with the Implementation of Guided Inquiry Models on Students' Mastery of Concepts and Scientific Creativity Susilawati Susilawati; Aris Doyan; Ahmad Harjono
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1542

Abstract

The purpose of this study was to develop learning media for wave ripple tanks with the implementation of guided inquiry models on the conceptualization and creativity of students in physics subjects in class XI with the material of mechanical wave characteristics. The wave ripple tank learning media is used as a tool in the learning process that can improve students' mastery of concepts and creativity. This study uses the Research and Development method with a 4D design (Define, Design, Development, Disseminate). At the defining stage, the initial analysis was carried out, namely examining the background behind the emergence of researchers' ideas. The design stage is carried out by designing the wave ripple tank learning media with the implementation of guided inquiry models. The development stage is a development activity as well as an assessment of the experts which includes the validation test of the development results of the device, media ripple tank learning, and assessment instruments. The last stage is the dissemination stage, where the results of this study are distributed to schools to be used as a model that can be used
Strengthening Student Character Education Through Biology Learning in High School Jamaluddin Jamaluddin; A. Wahab Jufri; Tri Ayu Lestari
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1575

Abstract

Strengthening character education through biology learning is a form of educator action that integrates character education values ​​in planning, implementing, and evaluating biology learning which is carried out intentionally and continuously to strengthen the character values ​​of students. This study aims to develop a character education-oriented biology learning tool and test its effectiveness on understanding character values ​​and mastery of biology concepts for high school students in West Lombok Regency. The method used is a mixed research method, namely development research methods to develop character education-oriented biology learning tools, and experimental methods to test the effectiveness of applying learning tools to understanding character values ​​and mastering biology concepts for high school students. The research sample amounted to 270 students who were determined by purposive random sampling technique. Data collection used research instruments in the form of expert validation sheets, feasibility assessment sheets, tests for understanding the values ​​of character education, and tests for understanding student concepts. The results showed that the character education-oriented biology learning tools were very valid and suitable for use in biology learning in high school. The results of the different concept mastery test are the mean score of the experimental class 69.78; and the mean score of the control class is 65.66 with a mean difference of 2.66. The results of the different test with the t test showed that there was no significant difference between the two mean scores. The results of the different test of understanding the values ​​of students' character education using the t-test obtained a mean experimental class score of 72.76; and the mean score of the control class is 70.10; means difference 2.66. Based on the t value, it was obtained that the mean scores of the experimental class and the mean scores of the control class were not significantly different
Effectiveness of Quantum Physics Learning Tools Using Blended Learning Models to Improve Critical Thinking and Generic Science Skills of Students Aris Doyan; Susilawati Susilawati; Saprizal Hadisaputra; Lalu Muliyadi
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1625

Abstract

This study aims to determine the effectiveness of quantum physics learning tools using blended learning models to improve the critical thinking and generic science skills of students. The learning device was developed using a 4-D model which includes the stages of definition, design, development, and dissemination. Learning devices that have been declared valid then conducted a limited-scale trial in the Physics education undergraduate program at the University of Mataram, which consisted of thirty students. Analysis of increasing critical thinking and science generic skills using the n-gain (g) test. The results of the n-gain analysis for all aspects indicate that the student's critical thinking and generic science skills are in the medium and high categories. These results indicate that the use of quantum physics learning using a blended learning model is effective in improving students' critical thinking and generic science skills

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