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ELECTROMAGNETIC RADIATION OF EXTREMELY LOW FREQUENCY (ELF) Septiana Kurniasari; Mursalin Mursalin; Kisman R. Akuba; Devi Triana Paputungan; Rila Virna; Muhammad Yunus
EDUPROXIMA : Jurnal Ilmiah Pendidikan IPA Vol 6, No 1 (2024)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/.v6i1.5088

Abstract

The spectrum emitted by electromagnetic wave radiation has various frequencies, one of which is Extremely Low Frequency (ELF), and is often found in educational environments, originating from various electronic devices, high voltage electrical panels, and internet network supporting devices. Based on this description, it is necessary to measure ELF electromagnetic radiation in the Faculty of Mathematics and Natural Sciences environment at Universitas Negeri Gorontalo. This research was carried out by measuring magnetic field values (µT) at 42 location points using a Portable Electromagnetic Field Tester (EMF Tester). The research results show that all of these location points are within the safe threshold based on ICNIRP and WHO regulations, namely below 200 µT, with the highest ELF magnetic field value is 2.81 µT, and the lowest ELF magnetic field value is 0.003 µT. However, there are several studies showing that exposure to ELF electromagnetic field radiation can produce free radicals, causing cell damage. The results of this research can be used as a basis for making health policies for the Faculty of Mathematics and Natural Sciences academic community at Universitas Negeri Gorontalo.
Desain Perangkat Pembelajaran Konsep Listrik Statis Dengan Strategi Berdiferensiasi Dalam memfasilitasi Pendidikan Inklusi Julanita Saleh; Abdul Haris Odja; Masri Kudrat Umar; Mursalin Mursalin; Muhammad Yusuf; Trisnawaty Junus Buhungo; Muznawaty Pilobu
Jurnal Penelitian Pendidikan IPA Vol 10 No 12 (2024): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i12.9269

Abstract

Students' learning needs need to be considered when teaching in the classroom. Implementation of differentiated learning is one of the teaching applications that pays attention to students' needs. The study aims to design static electricity learning devices with a differentiated approach in facilitating inclusive education. The study is part of the development of learning devices consisting of three stages, namely: preliminary stage, development stage and implementation stage. The results show a valid value teaching module with an average value of 81.25 including the valid category. In the implementation, a trial of differentiated learning devices was carried out through teaching in class IX. At this stage, information was obtained on the value of the implementation of learning implementation above 90 including the Very High category. Likewise, student learning outcomes at this implementation stage increased with an N-Gain value of 0.578 including the moderate category. The effect size test value was obtained at 6,510 including a strong effect. This shows that the implementation of the differentiated learning device design has a strong effect on static electricity learning outcomes. The conclusions of the study were obtained as follows: (1) the design of differentiated learning devices assessed by experts and practices is valid; (2) the implementation of the differentiated learning device design is included in the high category, there are two students who have obstacles in the form of slow learners at the regular school which is the trial location; (3) the design of the differentiated learning device which is arranged effectively is shown by the N-Gain value in the medium category and the effect size value in the strong effect category
Effectiveness of Interactive Learning Media Based on Virtual Laboratory on Scientific Literacy and Concept Mastery in Dynamic Electricity Asnianti A. Awila; Tirtawaty Abdjul; Muhammad Yusuf; Abdul Haris Odja; Mursalin Mursalin; Supartin Supartin
Jurnal Penelitian Pendidikan IPA Vol 11 No 12 (2025): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i12.13530

Abstract

Scientific literacy is an individual's ability to apply scientific knowledge, identify questions, and draw conclusions based on evidence to understand and make informed decisions about the natural world and changes resulting from human activities. This study aims to analyze the effectiveness of interactive learning media based on the Virtual Laboratory in enhancing scientific literacy and improving students' conceptual understanding of the Dynamic Electricity. The study employed a quasi-experimental design, specifically the One-Group Pretest–Posttest Design, without a control group. The research subjects consisted of four ninth-grade students from two schools, namely SMPN 3 Pagimana and SMPN 5 Pagimana, totaling 80 students. The research instruments consisted of a science literacy test and a concept mastery test, each consisting of 10 essay questions and validated by experts. The results showed that the use of Virtual Laboratory media effectively improved students' science literacy, as indicated by a significant increase in scores on the posttest compared to the pretest. Statistical analysis using a paired sample t-test yielded a significance value < 0.05 in all classes, indicating a meaningful difference between students' initial and final abilities. Furthermore, the Normalized Gain (N-gain) value was in the high category (0.93–0.97). Thus, interactive learning media based on Virtual Laboratories have proven effective in improving students' science literacy and concept mastery of the Dynamic Electricity, and can serve as an alternative solution in science learning in schools with limited laboratory facilities
A Virtual Laboratory to Improve the Effectiveness of Interactive Learning Media on Science Process Skills and Science Literacy in the Competency Aspects of Dynamic Electricity Andini Pratiwi M. Mahmud; Mursalin Mursalin; Tirtawaty Abdjul; Masrid Pikoli; Muhammad Yusuf; Abdul Haris Odja
Jurnal Penelitian Pendidikan IPA Vol 11 No 11 (2025): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i11.13531

Abstract

Implementing interactive learning media based on virtual laboratories is efficacious in improving students' scientific literacy in science learning. This study aims to assess the effectiveness of using interactive learning media based on virtual laboratories in improving students' scientific literacy and science process skills in dynamic electricity in two schools, namely SMP Negeri 1 Kwandang and MTs Al-Khairaat Kwandang, using a guided inquiry learning model. The research design employed was a quasi-experimental design with a pretest-posttest control group. Data was obtained through scientific literacy tests and observation sheets for science process skills. The study's results showed that interactive learning media based on virtual laboratories were effective in enhancing students' scientific literacy and science process skills. The results of the N-Gain analysis for scientific literacy showed an average score of 0.72, indicating a high category. Meanwhile, the results of the observations showed an increase in the achievement of science process skills at each meeting, particularly for the indicators of observing and conducting experiments, which improved to the very good category. Additionally, the results of the t-test on scientific literacy revealed a statistically significant difference (p < 0.05), indicating a significant difference between the pre- and post-learning periods. Thus, interactive learning media based on virtual laboratories assisted by guided inquiry models have been proven effective in improving students' scientific literacy and science process skills
Analisis Struktur Morfologi dan Sifat Mekanik Paving Block dari Berbagai Jenis Polimer Limbah Plastik Yita Irmala Sari; Idawati Supu; Mursalin Mursalin; Muhammad Fachrul Latief; Dewa Gede Eka Setiawan; A. Indra Wulan Sari Ramadani; Haerul Ahmadi
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 22, No 2 (2025): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v22i2.21418

Abstract

Penelitian ini menganalisis perbedaan ketiga jenis plastik yakni polimer PET, HDPE dan LDPE dalam pembuatan paving block dengan meninjau sifat mekanik (uji daya serap dan uji kuat tekan) dan struktur morfologinya. Pembuatan paving block pada penelitian ini menggunakan alat press dengan tekanan 25 bar campuran terbuat dari beberapa jenis plastik (PET, HDPE, dan LDPE) dan kerikil sebagai filler dengan masing-masing perbandingan massa secara berurutan adalah 30% : 70% ; 50% : 50% ; 70% : 30%; dan 100% plastik. Hasil pengujian daya serap menunjukkan bahwa hasil yang didapatkan memenuhi Standar SNI mutu A untuk semua jenis paving block. Sedangkan untuk hasil uji kuat tekan paving block dengan nilai kuat tekan paling tinggi yaitu perbandingan 70% plastik dan 30% kerikil yang terbuat dari polimer HDPE dan LDPE berturut-turut adalah 19,83 MPa (Standar  SNI mutu B) dan 12,56 MPa (Standar SNI mutu C). Hasil SEM menunjukkan bahwa paving block yang terbuat dari jenis polimer PET dan LDPE mempunyai struktur morfologi berbentuk granular dan kerapatan massa jenis yang kecil. Sedangkan untuk paving block yang terbuat dari jenis polimer HDPE menunjukkan distribusi partikel yang merata dan adhesi yang kuat ( terutama ikatan area persambungan antara kerikil dan plastik) sehingga mengurangi resiko titik lemah dan meningkatkan daya tekan mekaniknya. kesimpulan dari penelitian ini adalah hasil uji kuat tekan dan daya serap yang paling baik adalah pavin block yang terbuat dari jenis polimer HDPE.
Development of E-Magnetic Learning Media Based on Smart Apps Creator (SAC) on Topic of Magnetism Nurafni Dg. Palari; Mursalin Mursalin; Nova Elysia Ntobuo; Tirtawaty Abdjul; Dewi Diana Paramata; I Made Hermanto
Jurnal Ilmiah Profesi Pendidikan Vol. 10 No. 1 (2025): Februari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v10i1.3134

Abstract

This research aims to produce e-magnetic learning media products based on the Smart Apps Creator (SAC) application on magnetic material that meets quality criteria regarding validity, practicality, and effectiveness. This type of research is Research and Development (R&D) using the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) development model. The research subjects were 21 students in class IX-C of SMP Negeri 11 Gorontalo, Gorontalo Regency, Gorontalo Province. The research results show that (1) the validation results of e-magnetic learning media based on SAC by two validators obtained an average validation score of 96.88%, meeting the criteria of being valid and usable; (2) The practical aspect shows that observations of learning implementation obtained an average percentage of 88% with very good criteria and student responses obtained an average percentage of 9% with very good criteria. The results obtained indicate that the e-magnetic learning media based on SAC that was developed is practical; and (3) The effectiveness aspect is determined through student activity, which reached 84.42% with very good criteria and learning outcomes for the cognitive domain in magnetism topic reached an N-gain value of 0.70, including in the high category and the classical percentage results of participant learning outcomes. Students reached 80.12%. The results of this research can be concluded that e-magnetic learning media based on SAC on magnetism topic at SMP Negeri 11 Gorontalo has met the criteria of being valid, practical, and effective.
The Effectiveness of Problem-Based Learning Model Assisted by Canva-Oriented Pancasila Student Profiles to Improve Scientific Literacy Agus Wumu; Mursalin; Trisnawaty Junus Buhungo
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.4022

Abstract

This study aims to describe the effectiveness of the Problem-Based Learning model assisted by Canva oriented to Pancasila Student Profiles and to analyze the effect of its implementation on scientific literacy skills in static electricity material. This research was conducted at SMP Negeri 1 Kwandang with 31 students in class IXA as subjects. This development research uses Research and Development (R & D) research with the ADDIE development model developed by Reiser and Mollenda, which consists of the Analysis, Design, Development, Implementation, and Evaluation stages. The effectiveness test is carried out at the implementation stage. The results showed that the effectiveness of learning devices was seen through student activity data obtained by an average percentage of 93.27% obtained by very good criteria, and students' scientific literacy tests showed an increase in the N-gain score with an average N-gain score of 0.72 with high classification. This research concludes that physics learning tools that use the Problem-Based Learning model assisted by Canva-orientated Pancasila Student Profiles on static electricity effectively increase students' scientific literacy skills.
Pengembangan RPP-LKPD Berbasis Model Pembelajaran Ber2P3 Terhadap Penguasaan Konsep Siswa Pada Materi Getaran dan Gelombang Gita Fadilla Kasim; Mursalin Mursalin; Frida Maryati Yusuf; Masri Kudrat Umar; Tirtawaty Abdjul; Supartin Supartin
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.v10i7.6077

Abstract

This research is development research that aims to describe the validity, practicality and effectiveness of learning devices using the Ber2P3 learning model in the form of lesson plans and LKPD on Vibration and Wave material with research subjects involving 25 students of class VIII Tahfiz MTs Al Huda Gorontalo. Based on the validity of the RPP and LKPD based on the Ber2P3 learning model, it meets the valid criteria with an average value of 90%, the practicality of the RPP based on the Ber2P3 Learning model as seen from the implementation of learning with the first and second meeting values ranging from 78% and 87% including good criteria. Student responses meet the good criteria with a score of 80%. The effectiveness of RPP and LKPD Ber2P3 is seen through the activities of students who meet the good criteria with a value of 83% and a learning outcome test with 84% classical completeness. Based on the results of the study, it can be concluded that the lesson plans and LKPD using the Ber2P3 learning model of vibration and wave material meet the criteria of valid practical and effective
STEAM Approach to Students' Critical Thinking Ability on the Concept of Sound Waves for Developing PBL Model Learning Tools Yulianti Kohohon; Mursalin; Muhammad Yusuf; Masri Kudrat Umar; Tirtawaty Abdjul; Ritin Uloli
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.v9i12.6776

Abstract

One learning model that supports improving critical thinking skills and developing 21st century education is the PBL model. This research aims to describe the quality of the STEAM approach-based PBL model learning tools development for Students' Critical Thinking Ability on the concept of sound wave using the ADDIE development model. The results of the validation carried out by three validators obtained an average percentage for the learning implementation plan of 93.08%, student activity sheets of 92.58%, teaching materials of 90.82%, and critical thinking tests of 92.72%, and all included in the very valid criteria. The practicality of learning tools is seen from learning implementation of 90.72% with excellent criteria, the student's response to the learning tools was very positive with the ease aspect percentage of students' responses was 86.67%, the enthusiasm aspect percentage of 93.33%, the motivated aspect percentage of 86.67% and the involvement aspect percentage of 83.33%. The effectiveness of learning tools in student activity of 91.67% with excellent criteria, the results of the critical thinking test increased by 49.00%, from previously the overall average score of students was 30.33% to 79.33% and the effectiveness category through the N-Gain test was 0.71 with high criteria
The Influence of the PBL Model to Student Learning Outcomes on Heat and its Transfer Concepts Sri Maulina Otoluwa; Ritin Uloli; Tirtawaty Abdjul; Mursalin; Abdul Haris Odja; Nova Elysia Ntobuo
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.v10i7.8003

Abstract

This research aims to determine the influence of the Problem-Based Learning (PBL) model to student learning outcomes on heat and transfer concepts by using experimental research, with the research design being One Group Pretest-Posttest Design. The population of this study was class VII students of SMP Negeri 5 Gorontalo. The sample consists of 3 classes, namely experimental class, replication 1, and replication 2, with the sampling technique being Cluster Random Sampling. The instrument of research used was a learning outcomes test in the form of a pretest-posttest to see student learning outcomes. Then, the data was analyzed using descriptive and inferential statistics, including normality tests, hypothesis tests, and n-gain analysis. The average score for class VII students is greater than the Criteria for Achieving Learning Goals, shown by an average score for the experimental class of 82.25, replication 1 of 79.94, and replication 2 of 79.04, compared to the Criteria for Achieving Learning Goals of 70. Based on the hypothesis testing criteria for the class, experimental Tcount 7.036 is greater than Ttable 2.035, replication 1 Tcount 6.684 is greater than Ttable 2.035, and replication 2 Tcount 5.824 is greater than Ttable 2.035 so it stated Tcount is more prominent than Ttable. This can be interpreted that the PBL model influences student learning outcomes.
Co-Authors A. Indra Wulan Sari Ramadani A. Indra Wulandari Ramadani Abd Wahidin Nuayi Abdul Haris Odja Abdul Haris PanaI Agus Wumu Altri Rahmadhani Lanio Amna Abdullah Andi Indra Wulan Sari Ramadani Andini Andini Pratiwi M. Mahmud Ardita Ardita Asna Aneta Asnianti A. Awila Asri Arbie Asril Nurdin Astin Lukum Buhungo, Trisnawaty Junus Chairunnisah J. Lamangantjo Citron S Payu Citron S Payu Citron S. Payu Devi Triana Paputungan Dewa Gede Eka Setiawan Dewi Diana Paramata Dewi Diana Paramata Dewi Diana Paramata Dewi Diana Paramata Dewi Diana Paramata Egri Izhar Nurfauzan Eka Dilla Ahyani Daintau Elfira S.H Hadis Elya Nusantari Fathurrahman, Muhammad Febriyani Puhi Frida Maryati Yusuf Gita Fadilla Kasim Haerul Ahmadi Hersiq Basri Hidjrawaty Tantu I Made Hermanto I Made Hermanto Iis Rahayu Timbola Indah Oktaviani Indriati Martha Patuti Irsan Irsan Iswanto A. Yunus Jahja, Mohamad Julanita Saleh Kahar, Muhammad Syahrul Kisman R. Akuba Kurniasari, Septiana Lanto Mohamad Kamil Amali Latief, Muh Fachrul Lifna Agustianingsih Pakaya Maryam Hasan Masra Latjompoh Masri Kudrat Umar Masri Umar Masrid Pikoli Melisa Damayanti R. Saleh Moh Arif Alfan Habibi Moh. Sahyan A. Mile Mohamad Nurkhojin Muhamad Ruslan Layn Muhammad Fachrul Latief Muhammad Syahrul Kahar Muhammad Yunus Muhammad Yusuf Muhlis Ali Muliyana S Nupura Muznawaty Pilobu Ngiu, Zulaecha Nicodemus Lolonlun Nina Shaqina Anggo Nova Elysia Ntobuo Novianty Djafri Nur Arny Chairunnisa Nurafni Dg. Palari Nurfitri Abd Gafur Nurhalisa Sambel Nurhayati Nurhayati Nurhayati Nurinda R. Bakri Nurlaila Muhsadi Raflin Hamzah Taib Rahmatullah Bin Arsyad Ramli R. Ali Ratha Doung Reka Lagani Relin Pakaya Rila Virna Ritin Uloli Ritin Uloli Rosalinda Ahmad Sintia Nasir Hasani Sitria Jau Sri Maulina Otoluwa Supartin Supartin Supu, Idawati Syahdad Aziz Tirtawaty Abdjul Wahyuni Nurnaningsih Wirnawati Luawo Yita Irmala Sari Yosie Andriani Yulianti Kohohon