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Arang Kayu, Batok Kelapa, Kulit Durian Dan Kulit Pisang Sebagai Bahan Pengganti Resistor Film Karbon Wisutama, Remanda Arya; Nurseptiani, Syifa; Azizah, Athirah Nur; Subagiyo, Lambang; Nuryadin, Atin
Journal BEARINGS: Borneo Mechanical Engineering and Science Vol 1, No 1 (2022)
Publisher : Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.89 KB) | DOI: 10.35334/bearings.v1i1.3050

Abstract

Indonesia’s dependence on imported resistors must be addressed. Producing domestic resistors and using cheaper, more efficient materials is one way to reduce it. The purpose of this study was to determine the specific resistances of carbon film resistors produced from several natural materials. The carbon film resistors were made from 4 different charcoal materials: wood, coconut shells, banana peel, and durian peel charcoals. The fine natural charcoals were put into straws with different cross-sectional areas and lengths. The resistance was measured using a digital multimeter, and the specific resistance was subsequently calculated. The highest specific resistance was obtained by wood charcoal of 8.68x106Ωm, then followed by coconut shell charcoal, durian peel charcoal, and banana peel charcoal, which were 7.23x106Ωm, 4.91x106Ωm, and 4.37x106Ωm, respectively. Based on this research, wood, coconut shell, banana peel, and durian peel charcoals have the potential to be used as alternative materials to replace carbon film resistors.
The Development of Observation Module of Astronomy Lecture Based on Sky Portal Application Tandra, Tan, Fahrur Rozy; Nuryadin, Atin; Sulaeman, Nurul Fitriyah
Jurnal Penelitian Pendidikan Vol. 42 No. 2 (2025): October 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpp.v42i2.32850

Abstract

Astronomy is one of Physics’ branches. But, there is a content shift happening in Astronomy where it should be part of Physics, but currently it tends to be part of Geography. Hence, it is needed a module which can support deeper understanding in Astronomy through sky observation. This research aims to develop an Astronomy observation module based on Sky Portal Application which is valid and has a good response. This research used the ADDIE model with the students of Physics Education Study Porgram of Education and Teacher Training Faculty of Mulawarman University batch 2022 being the subject. The data was gathered by using the questionnaire for the validation of material and media, and also questionnaire for the response of the students. The material obtains a percentage of 89,3%, while the media obtains a percentage of 87,7%, which both of them are categorized as valid. Meanwhile, the response of the students obtains a percentage of 88,8% which is categorized as practical. So, from the results of validation and response of the Observation Module of Astronomy Lecture based on Sky Portal Application, this module is valid and can be used in the lecture activity.
Shaping Future Science Educators: Exploring First-Year Pre-Service Teachers’ Mastery of PISA-Style Challenges Falentino, Charlos; Anggara Duta Medika; Evanita Mutang; Nuryadin, Atin; Efwinda, Shelly; Sulaeman, Nurul Fitriyah; Tanlianto, Alphero
Jurnal Ilmu Pendidikan (JIP) STKIP Kusuma Negara Vol 16 No 2 (2025): Innovation and Development in Education in the Digital Era: Strategies, Technolo
Publisher : LPPM STKIP Kusuma Negara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37640/jip.v16i2.2192

Abstract

This study investigates first-year science pre-service teachers’ abilities and perspectives on PISA questions, addressing Indonesia's low PISA rankings and challenges in teacher preparation. A total of 153 first-year students from four programs at Mulawarman University (mathematics, biology, physics, and computer education) participated. Using a mixed-methods approach, quantitative data were collected through validated PISA test instruments, while qualitative insights were drawn from open-ended responses. The results showed no significant differences in PISA scores by gender or study program, but significant differences emerged when comparing first-year students to third-year students and professional teachers, with first-year students scoring lower. Qualitative findings revealed themes such as the cognitive challenges posed by PISA questions, their ability to foster critical thinking, unfamiliarity with the format, and their real-world relevance. Despite difficulties, many participants found the questions engaging and valuable for developing analytical skills. These findings highlight the need to incorporate PISA-style assessments in teacher education programs to enhance higher-order thinking and better prepare pre-service teachers for international standards in education.
Feasibility of ESD-Based Teaching Materials Using EDP in Senior High School Physics on Alternative Energy and Environmental Issues Wandira, Ayu Ramadani; Nuryadin, Atin; Zulkarnaen; Damayanti, Puardmi
JURNAL PEMBELAJARAN FISIKA Vol. 14 No. 3 (2025): Jurnal Pembelajaran Fisika (JPF) Universitas Jember
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Twenty-first century education requires critical, creative, and solution-oriented thinking skills to address global issues such as environmental problems and the energy crisis. One approach that supports these skills is Education for Sustainable Development (ESD) integrated with the Engineering Design Process (EDP). This study aims to develop and evaluate the feasibility of ESD-EDP–based teaching materials on the topic of alternative energy in senior high school physics learning. This research is a type of Research and Development (R&D) using the ADDIE model, limited to the Analyze, Design, and Development stages. The Analyze stage included learning outcomes and student needs analysis, the Design stage produced the instructional framework, and the Development stage resulted in teaching materials validated by two subject matter experts, two media experts, and evaluated through the responses of 23 tenth-grade students. Validation results indicated very high feasibility with scores of 94% (content), 93% (presentation), 84% (language), and 92% (graphic design). Student responses averaged 88%, categorized as very good. Thus, ESD-EDP–based teaching materials are considered highly valid and feasible for senior high school physics learning on alternative energy topics.
Co-Authors Abdul Hakim Achmad Muhtadin Agus Riyadi Ahmad Syafi’i Ahmad Zaki Dzulfikar Alphero Tanlianto Alya Puspita Zahra Anamta, Mega Hajraini Andi Anwar Anggara Duta Medika Anugrah Putri Nuraini Apriatin, Diana Astrid Alifkalaila Azizah, Athirah Nur Charlos Falentino Chelda Yuliana Dakhi, Grecellia Mei Magdalena Damayanti, Isniawana Damayanti, Puardmi Dersan, Irviomi Desi Az Zahra Putri Desy Yuliana Dalimunthe Dinurrohmah, Syayidah Efwinda, Shelly Eko Andrianto Erna Sari Eryawan Presma Yulianrifat Evanita Mutang Evanita Mutang Fadhilah, Khairunnisa Hayatul Falentino, Charlos Febryan, Mohamad Ezra Feby Zulhiyah Feby Zulhiyah Feby Zulhiyah Firda Yunita Kartikasari Fitri, Divani Rahma Fitri, Muhammad Fauzan Grace Novely Aswin Siallagan Greny Mispi Anisa Sari Greny Mispi Anisa Sari Greny Mispi Anisa Sari Greny Mispi Anisa Sari Greny Mispi Anisa Sari Habibah Habibah Hadi Santoso Herman Aldila Ippei Mineta Iyar Anjas Oktaba Joey-Nell T. Marzan Junus, M Laela Nisfi Syiami Laili Komariyah Laili Komariyah, Laili Lambang Subagiyo M Junus M. Ari Prayogo Medika, Anggara Duta Melliana Jiana Bahi Muhammad Fikri Erlangga Muhammad Ikhsan Bachrul Alam Muhammad Ikhsan Bachrul Alam Muhammad Sholeh MUHAMMAD SHOLEH Muhammad Sholeh Muhammad Sholeh Muliati, Muliati Mutang, Evanita Nika Eva Widiyanti Nun Nasih, Amin Nurjannah, Indra Nurlaili Nurseptiani, Syifa Nurul F. Sulaeman Nurul Fitriyah Sulaeman Nurul Fitriyah Sulaeman Nurul Fitriyah Sulaeman, Nurul Fitriyah Nurul Sulaeman Palapa, Kaleb Gideon Pasaribu, Dian Rachel Putri Sri Rahmawati Putri, Sevia Tasya Rahmadani, Agung Rahman Setiyawan Rahmawati, Eka Septia Rahmawati, Putri Sri Ratna Woro Susanti Regina Bilqis Wardani Regina Bilqis Wardani Remanda Arya Wisutama Remanda Arya Wisutama Remanda Arya Wisutama* Rika Afriani Salsabila, Zulfa Sari, Firda Yunita Kartika Shelly Efwinda Subagyio, Lambang Syayidah Dinurrohmah Syayidah Dinurrohmah Syayidah Dinurrohmah Syayidah Dinurrohmah Syayidah Syayidah Dinurrohmah Tan Fahrur Rozy Tandra Tan Fahrur Rozy Tandra Tandra, Tan, Fahrur Rozy Tanlianto, Alphero Tomohiro Takebayashi Ulul Hadiatul Fauki Vika Yulinda Antika Wandira, Ayu Ramadani Wati, Retno Rahma Widyatmike Gede Mulawarman Wisutama, Remanda Arya Zeni Haryanto Zulkarnaen Zulkarnaen