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All Journal Jurnal Riset dan Kajian Pendidikan Fisika Jurnal Pendidikan Fisika FKIP UM Metro International Journal of Science and Applied Science: Conference Series Al-MARSHAD: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Spektra: Jurnal Fisika dan Aplikasinya Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat Buletin Ilmiah Sarjana Teknik Elektro Indonesian Review of Physics (IRiP) Jurnal Fisika Indonesia Jurnal Abdi Insani SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) JEMAS : Jurnal Edukasi Matematikan dan Sains Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Jurnal Material dan Energi Indonesia Lontar Physics Today Seminar Nasional Riset dan Teknologi (SEMNAS RISTEK) JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Jurnal VARIDIKA
Okimustava Okimustava
Universitas Ahmad Dahlan
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Kajian Model Problem Based Learning Berbasis Gamifikasi Wordwall Untuk Pembelajaran Fisika Di Masa New Normal Silvia Laeli; Okimustava Okimustava; Efi Kurniasari
JEMAS : Jurnal Edukasi Matematika dan Sains Vol. 3 No. 2 (2022): September| Jurnal Edukasi Matematika dan Sains |
Publisher : Program studi Pendidikan Fiska

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Abstract

Model pembelajaran Problem Based Learning atau berbasis masalah ini digunakan oleh beberapa tenaga pendidik untuk digunakan pada proses pembelajaran di masa new normal. Dalam penelitian ini ditunjukan bentuk pembelajaran fisika di masa new normal, bentuk model pembelajaran Problem Based Learning berbasis gamifikasi Wordwall, serta efektifitas penggunaan model PBL berbasis gamifikasi Wordwall yang diterpakan pada pembelajaran fisika di masa new normal. Metode penelitian yang digunakan yakni metode studi pustakaan atau library research. Untuk mengimplementasikan model pembelajaran ini agar berhasil meningkatkan pemahaman peserta didik dibutuhkan tiga aspek yaitu dari aspek kesiapan tenaga pendidik, aspek peserta didik, dan aspek media. Dengan memanfaatkan teknologi yang ada, maka peneliti akan mengembangkan inovasi dalam proses Kegiatan Belajar Mengajar dengan menggunakan metode gamifikasi yaitu Wordwall pada pembelajaran fisika di masa new normal. Penggunaan model PBL yang dipadupadankan dengan gamifikasi Wordwall ini tergolong efektif namun harus ada penyesuaian keamampuan dasar dari peserta didik.
Pemanfaatan Mentimeter pada Pelajaran IPA dengan Cooperatif Learning Sumiasyih Sumiasyih; Okimustava Okimustava; Sharfina Sharfina
JEMAS : Jurnal Edukasi Matematika dan Sains Vol. 4 No. 1 (2023): Maret | Jurnal Edukasi Matematika dan Sains |
Publisher : Program studi Pendidikan Fiska

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Abstract

Penelitian ini bertujuan untuk menganalisa keterlaksanaan pembelajaran dan menganalisa kepuasan pembelajaran dengan memanfaatkan mentimeter dengan model cooperative learning metode problem solving pada pelajaran IPA. Hasil penelitian ini memberikan data keterlaksanaan pembelajaran pada pertemuan pembelajaran dengan prosntase 100 % dengan kriteria sangat baik. Hasil diskusi kelompok 80% siswa memahami soal dengan tuntas dengan kriteria baik, sehingga pembelajaran dengan model kooperatif learning yang diterapkan dalam diskusi ini, berhasil meningkatkan pemahaman peserta didik terhadap materi tuas. Hasil angket kepuasan peserta didik terhadap manfaat mentimeter pada model pembelajaran kooperatif learning pada materi tuas menunjukkan rata-rata 85%, menyukai terhadap usefulness, easy to use, easy to learn, satisfaction, artinya tingkat kegunaan, mudah digunakan, mudah dipelajari, kepuasan peserta didik terhadap penggunaan mentimeter dalam model pembelajaran kooperatif learning dengan kriteria sangat tinggi
PENGARUH WAKTU DEPOSISI PADA TEBAL LAPISAN, STRUKTUR MIKRO, RESISTIVITAS KEPING LAPISAN TIPIS CU/NI HASIL DEPOSISI DENGAN TEKNIK ELEKTROPLATING MOH. TOIFUR; NURAMALIA A; OKIMUSTAVA O; IRMA SUKARELAWAN
Jurnal Material dan Energi Indonesia Vol 7, No 02 (2017)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1606.485 KB) | DOI: 10.24198/jmei.v7i02.16132

Abstract

Telah dibuat lapisan tipis Cu/Ni pada variasi waktu deposisi Ni dengan metode elektroplating. Penelitian bertujuan untuk menentukan pengaruh waktu deposisi terhadap tebal lapisan Ni, struktur mikro, dan resistivitas lapisan. Sebagai elektroda digunakan pelat nikel dan tembaga, sedangkan larutan elektrolit dibuat dari paduan NiSO4 75g, NiCl2 10g , H3BO3 7,5g, dan H2O 250 ml. Deposisi dilakukan pada tegangan 1,5 volt, jarak antar elektroda 4 cm, dan suhu 60°C. Waktu deposisi divariasi dari 1 menit sampai 5 menit. Karakterisasi sampel dilakukan dengan memotret tampang permukaan Ni dan tampang lintang Cu/Ni menggunakan foto SEM,  analisis kandungan unsurnya menggunakan EDS untuk sampel hasil deposisi 1 menit dan 5 menit, karakterisasi struktur mikro dengan XRD, tebal lapisan Ni dengan perhitungan, serta resistivitas keping dilakukan dengan alat probe empat titik. Hasil penelitian menunjukkan bahwa tebal lapisan Ni sebanding dengan waktu deposisi Ni. Dari foto SEM pada permukaan lapisan Ni terlihat bahwa sampel hasil deposisi Ni selama 1 menit belum menampakkan adanya butir-butir Ni sedangkan pada sampel hasil deposisi Ni selama 5 menit telah menampakkan butir-butir Ni. Dari analisis menggunakan EDS diperoleh bahwa pada lapisan Cu/Ni mengandung elemen Ni dan Cu serta senyawa NiO dan CuO dengan kadar Ni sebanding dengan waktu deposisi Ni. Dari analisis struktur mikro menggunakan XRD diperoleh beberapa fasa yaitu Cu, Ni, dan NiO berstruktur kristal sedangkan fasa CuO berstruktur amorf. Dari nilai resistivitas keping, semakin lama waktu deposisi resistivitas keping semakin berkurang.
Assessment of Night Sky Quality in Ganten Village, Kerjo District, Karanganyar: A Prospective Evaluation for the Establishment of the Falak Observatory Delta Rosiana; Yudhiakto Pramudya; Okimustava Okimustava; Muchlas Muchlas
Al-Marshad: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Vol 9, No 1 (2023): Al-Marshad
Publisher : University of Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jam.v9i1.13545

Abstract

The establishment of an astronomical observatory requires a thorough evaluation of meteorological parameters and Night Sky Brightness Levels (NSBL). This research focuses on assessing the potential of Karanganyar as a site for astronomical education and new moon observations. To determine the NSBL in Karanganyar, satellite imagery was used, indicating favourable conditions. However, NSBL can be affected by light pollution and moon phases in specific locations. To complement the satellite data, additional measurements were taken using a Sky Quality Meter (SQM). The SQM values were processed using probability distribution analysis and showed a highest probability NSBL value of 17.22 mag/arsec2, while the maximum NSBL value reached 20.99 mag/arsec2. The NSBL derived from satellite data was 21.47 mag/arsec2. Our study shows that Karanganyar has predominantly high NSBL, suggesting low light pollution and excellent sky clarity in the region.
Thickness Measurement and Sensitivity of Copper/Nickel Electroplating Results of Electrolyte Solution Temperature Variation Islamiyati, Rizka Nuzul; Toifur, Moh.; Okimustava, Okimustava
Spektra: Jurnal Fisika dan Aplikasinya Vol. 9 No. 2 (2024): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 9 Issue 2, August 2024
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.092.01

Abstract

Currently, cryogenic thermometers are needed and one of the uses of cryogenic thermometers is to measure the temperature of food preservation flasks. Research has been conducted on the manufacture of cryogenic thermometers derived from Cu/Ni coils by electroplating process with temperature variation treatment of electrolyte solution. The purpose of this study is to determine the effect of electrolyte solution temperature variation treatment on Ni thickness and Cu/Ni sensitivity as a low-temperature sensor. Electroplating was carried out with electrolyte temperature parameters of 30˚C-70˚C, electrode distance of 4 cm, voltage of 4.5 volts, and coating time of 4 minutes. The electrolyte solution was a mixture of NiSO4 260 g, NiCl2 60 g, H3BO3 40 g, and Aquades 1000 mL. Based on the results of the study, a remarkable condition was obtained on the thickness of Ni; namely, at 40 ˚C, the thickness increased to 1.08 mm. In addition, the best temperature can produce the greatest sensitivity value in Cu/Ni coil electroplating, namely at 50 ˚C.
Pemanfaatan Teknologi Shipon Terkontrol Water Level Sensor dalam Budidaya Lele Mutiara di Dusun Bakal, Argodadi, Sedayu, Bantul Yogyakarta Toifur, Moh.; Hanafi, Yahya; Okimustava, Okimustava; Agil, Mazani Azizan; Rahayu, Natika; Azizah, Annisa Nur; Fardanti, Aribah Chika; Rahayu, Fatonah
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 9 No. 1 (2024): March
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v9i1.1418

Abstract

Budidaya ikan lele Mutiara dengan menggunakan teknologi siphon termodifikasi masih dijumpai beberapa permasalahan yaitu ikan banyak yang mati dalam waktu singkat pada 2 minggu pertama karena serangan bakteri aeromonas, mitra belum memiliki pengetahuan mengenai cara menangani bakteri aeromonas, turunnya daya tahan ikan akibat air sumur yang dingin pada bulan Juli-September karena perubahan cuaca rutin tahunan, ikan banyak yang mati karena peningkatan kadar amoniak tidak seimbang dengan kadar oksigen dalam kolam disebabkan tidak adanya sirkulasi air untuk menambah kadar oksigen. Solusi untuk mengatasi permasalahan tersebut yaitu penggunaan teknologi water level sensor agar terjadi aliran air kontinyu secara otomatis ke dalam kolam. Mitra kegiatan pengabdian yaitu Pokdakan Mina Mekar Jannah yang berlokasi di Dusun Bakal, Argodadi, Sedayu, Kabupaten Bantul, D.I. Yogyakarta. Kegiatan pengabdian dilaksanakan selama 6 bulan (Juni-November 2023), melibatkan satu ketua, dua anggota dosen dan lima orang anggota mahasiswa. Teknik pengumpulan data menggunakan kuesioner dan pengukuran secara langsung bobot ikan, panjang ikan, suhu, pH, NH3. Jumlah responden yaitu 25 orang anggota Pokdakan Mina Mekar Jannah. Instrumen yang digunakan yang yaitu angket dan timbangan, penggaris,  serta sensor suhu, pH, NH3. Kegiatan PkM pemanfaatan teknologi shipon terkontrol water level sensor dalam budidaya lele mutiara telah mencapai indikator keberhasilan yang ditetapkan. Melalui kegiatan PkM telah transfer teknologi penggunaan siphon termodifikasi, sensor suhu, pH, NH3, dan water level sensor kepada mitra. Kegiatan PkM berdampak pada peningkatan pengetahuan, kemampuan, keterampilan mitra dalam budidaya ikan lele Mutiara. Mitra sasaran memperoleh manfaat dari kegiatan PkM yang dilakukan dan berkomitmen untuk melanjutkan kegiatan budidaya ikan lele Mutiara yang telah dilakukan. Utilization of Shipon Technology Controlled Water Level Sensor in Hygienic Pearl Catfish Cultivation in Bakal Hamlet, Argodadi, Sedayu, Bantul, Yogyakarta Abstract: Pearl catfish farming using modified siphon technology still encountered several problems, namely, many fish died in a short time in the first two weeks due to Aeromonas bacteria attack, partners did not know how to deal with Aeromonas bacteria, decreased fish endurance due to cold healthy water in July-September due to annual routine weather changes, many fish died due to increased ammonia levels not balanced with levels Oxygen in the pool is caused by the absence of water circulation to increase oxygen levels. The solution to this problem is using water level sensor technology so that there is an automatic continuous flow of water into the pool. The partner of the service activity is Pokdakan Mina Mekar Jannah, located in Bakal Hamlet, Argodadi, Sedayu, Bantul Regency, D.I. Yogyakarta. The service activity will last six months (June-November 2023), involving one chairman, two lecturers, and five student members. Data collection techniques use questionnaires and direct fish weight, length, temperature, pH, and NH3 measurements. The number of respondents was 25 members of the Mina Mekar Jannah Pokdakan. The instruments used are questionnaires, scales, rulers, temperature sensors, pH, and NH3. PkM activities utilizing shippon technology-controlled water level sensors in pearl catfish cultivation have achieved the established success indicators. PkM has transferred technology using modified siphons, temperature sensors, pH, NH3, and water level sensors to partners through activities. PKM activities impact increasing partners' knowledge, abilities, and skills in pearl catfish farming. Target partners benefit from the PKM activities carried out and are committed to continuing the Mutiara catfish farming activities that have been carried out.
Home Made Four-Point Probe: Case Studies of the Wobbly A and B Probes Toifur, Moh.; Sukarelawan, Moh. Irma; Okimustava, Okimustava
Indonesian Review of Physics Vol. 6 No. 1 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v6i1.8362

Abstract

A simulation on the effect of probe deviation on sheet resistivity value (Rs) of Cu/Ni thin film was carried out in a home-made four-point probe (HM-FPP) type. This began by solving the Rs formula for normal probes, and then for wobbly probe when it was either A, or both A and B. The formula was implemented on a thin layer of Cu/Ni, which was a low temperature sensor material obtained from electrodeposition for 60s assisted by a 200G magnetic field at a current density of 0.07A/mm2. An electric current of 0.20118A was flown from probe A to D in order to produce a potential difference between probe C and D of 0.0005 volts. Furthermore, the distance between the probes was 5 mm and the deviation of each probe A and B were simulated from -0.5 mm to 0.5 mm. The maximum allowable limit for the relative error of Rs or SRs is 5%. The results showed that the ideal Rs value was 0.113 ohm/sq. Furthermore, for HM-FPP in which the wobbly probe only A, there is no problem encountered with the variation of the deviation because all SRs are less than 5%. For wobbly probes A and B, if they are on the same side of the center point of each probe, the maximum allowable deviation is 0.3 mm. The SRs for this case were 4.6%. However, if they are on different sides of the center point of each probe, the maximum allowable deviation is 0.1 mm with SRs of 2.9%. With these results, HM-FPP craftsmen must be more careful in making the size of the probe hole.
PRO-SIMBAH: PROGRAM SEKOLAH LANSIA INTEGRASI UNTUK OPTIMALISASI KUALITAS HIDUP BERBANTUAN VIRTUAL ART THERAPY Hartanto, Dody; Sudarsono, Bambang; Dina Puspitasari, Arianti; Okimustava, Okimustava; Faiz Mubina, Muhammad; Auliya Azfin, Tazkiya; Hidayatun Nafi'ah, Hilda; Wahyuni, Sri
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 11 (2024): MARTABE : JURNAL PENGABDIAN MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i11.4821-4828

Abstract

Pertumbuhan populasi lansia yang signifikan di Indonesia menimbulkan berbagai tantangan terkait peningkatan kualitas hidup mereka. Program Sekolah Lansia PRO-SIMBAH hadir sebagai solusi melalui integrasi pendidikan dan terapi seni berbasis virtual (Virtual Art Therapy) untuk meningkatkan kesejahteraan fisik, psikologis, sosial, dan spiritual lansia. Program ini melibatkan 55 peserta lansia dari wilayah Pimpinan Cabang Aisyiyah Sedayu, Bantul, dan dilaksanakan selama delapan bulan. Metode yang diterapkan dalam program ini mencakup beberapa tahapan: persiapan, sosialisasi, pelaksanaan, evaluasi, dan keluaran (output). Dalam tahap pelaksanaan, program ini menawarkan pembelajaran interaktif mengenai keterampilan hidup sehari-hari, peningkatan kesehatan mental, serta keterlibatan dalam sesi Virtual Art Therapy, yang dipandu oleh terapis seni profesional.Melalui metode pembelajaran interaktif dan sesi terapi seni, PRO-SIMBAH berhasil meningkatkan kesehatan mental, keterampilan hidup, serta keterlibatan sosial para lansia. Hasil evaluasi menunjukkan adanya penurunan tingkat kecemasan dan depresi, serta peningkatan keterampilan hidup dan interaksi sosial. Program ini menawarkan model intervensi yang dapat diadopsi oleh berbagai komunitas untuk mendukung lansia dalam menjalani kehidupan yang lebih sehat, aktif, dan bermakna
Perlindungan Sensor Suhu Cu/Ni dengan Nitroselulosa Surur, Miftahus; Toifur, Moh.; Okimustava, Okimustava; Putri, Siti Zahra Helmania
JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Vol. 8 No. 2 (2024): November Edition
Publisher : Universitas Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/jipfri.v8i2.3820

Abstract

Coating of Cu/Ni with nitrocellulose (NC) has been carried out with the aim of determining the effect of using NC as a protective film on the sensitivity and activation energy of the sensor. The samples used were Cu/Ni and Cu/Ni/Cu where the NC coating on Cu/Ni was carried out using a spray method with a pressure of 1.2 Mpa. Both sensor samples were used to measure the temperature of liquid nitrogen (liquid N2) which was varied from -160C - 0C. In addition to temperature, voltage and current were also measured. The sensitivity value was obtained from the slope of the resistance curve against temperature, while the activation energy was obtained from the slope of the logarithm of conductivity against one per absolute temperature. From the sensitivity test, it is known that both sensors have a tendency to be more sensitive when the temperature is lowered, but the presence of the NC layer causes a decrease in sensitivity of up to 18.9%, namely from 3.95 /C to 3.18 /C at a temperature of -160C following the equation S(T)=0.10e-0.012T. The use of NC protective layer can also increase the activation energy by 1.3%, namely from (4.29  0.01)x10-9 eV to (4.35  0.01)x10-9 eV. These results can be used as a consideration for temperature sensor manufacturers that the use of NC protective layer is important but can reduce sensor sensitivity.
Learnviro: An IoT-Based Innovation for Monitoring the Learning Environment Maryani, Ika; Okimustava, Okimustava; Suyatno, Suyatno; Hasanah, Enung
SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) Vol. 6 No. 1 (2025)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/spekta.v6i1.12722

Abstract

Background: Aisyiyah Bantul's Leading Elementary School faces challenges in maintaining an optimal learning environment, particularly regarding temperature, humidity, and lighting. This community service program introduces Learnviro, an IoT-based solution for real-time environmental monitoring, enabling schools to make data-driven decisions to enhance learning conditions. Contribution: Learnviro empowers teachers by providing real-time data, allowing them to make informed adjustments that support differentiated instruction. The system also improves school management by optimizing classroom conditions and infrastructure maintenance. Method: The program consists of four stages: (1) collaboration with partner schools to assess needs, (2) installation of IoT devices in classrooms, (3) teacher training on interpreting and applying environmental data, and (4) continuous technical support. Data collection involved observations, interviews, and questionnaires, analyzed descriptively to evaluate the program’s effectiveness. Results: Learnviro effectively provided real-time environmental data, improving teachers’ proficiency in utilizing IoT-based insights for classroom management. Students reported increased comfort and focus, while schools experienced better infrastructure maintenance through data-driven decision-making. Conclusion: Learnviro has proven to be an effective tool for optimizing classroom conditions and empowering the school community. By integrating IoT technology into education, this initiative demonstrates the practical application of intelligent environmental monitoring in addressing real-world.
Co-Authors Abu Yazid Raisal Achadi Budi Santosa Adi Jufriansah Adini, Lia Agil, Mazani Azizan Apik Rusdiarna Indra Praja Arief Ghozali, Fanani Auliya Azfin, Tazkiya Azizah, Annisa Nur Bambang Sudarsono Bayu Setiawan Delta Rosiana Dian Artha Kusumaningtyas Dina Puspitasari, Arianti Dody Hartanto Dwi Wahyuningtyas Eko Susanto Faiz Mubina, Muhammad Fardanti, Aribah Chika Hajatulloh, Ridlo Hani Irawati Hasanah, Enung Hidayah, Rihmah Alifah Hidayatun Nafi'ah, Hilda Ika Maryani Intan Meifilindati Irfan Rosyadi Irfan Yunianto Ishafit Ishafit Ishafit Ishafit Islamiyati, Rizka Nuzul Izzati, Elsarina Nur Jannah, Mailatul Josephine Magay Salmo Kartika Firdausy Khoirunnisa, Itsnaini Irvina Kurniasari, Efi Lia Adini M. Khairul Ardi Maulidan, Muhammad Miftahus Surur, Miftahus Moh. Irma Sukarelawan Moh. Toifur Muchlas , Muchlas Muchlas Muchlas, Muchlas Muhammad Faisal Muhammad Kristiawan Murinto Murinto Murti, Bayu Krisna Mustofa Ahyar Mutmainah, Nur Fitri Nanang Suwondo Nanang Suwondo NURAMALIA A Putri, Siti Zahra Helmania Rachmad Resmiyanto Rachmad Resmiyanto Rahayu, Fatonah Rahayu, Natika Ricka Tanzilla Setiawan, Indra Budi Shaafi, Nur Farha Sharfina Sharfina Silvia Laeli Sri Wahyuni Sumiasyih Sumiasyih Suyatno Suyatno Utama, Rodika Utami, Listiati Budi Yahya Hanafi Yudhiakto Pramudya Yudhiakto Pramudya