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All Journal IAES International Journal of Robotics and Automation (IJRA) AQUATIC SCIENCE & MANAGEMENT Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Pendidikan Matematika dan IPA SAINSMAT Jurnal Pengajaran MIPA Jurnal Neutrino : jurnal fisika dan aplikasinya JTSL (Jurnal Tanah dan Sumberdaya Lahan) JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Edufisika: Jurnal Pendidikan Fisika Jurnal Fisika FLUX JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Acta Aquatica: Aquatic Sciences Journal Jurnal Ilmu Nutrisi dan Teknologi Pakan Spektra: Jurnal Fisika dan Aplikasinya JPF : JURNAL PENDIDIKAN FISIKA COMPTON: Jurnal Ilmiah Pendidikan Fisika JPBIO (Jurnal Pendidikan Biologi) Jurnal Biotek Kasuari: Physics Education Journal (KPEJ) Silampari Jurnal Pendidikan Ilmu Fisika Jurnal Biogenerasi Bioscientist : Jurnal Ilmiah Biologi Journal Evaluation in Education (JEE) DIKSAINS : Jurnal Ilmiah Pendidikan Sains SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam Amplitudo: Jurnal Ilmu dan Pembelajaran Fisika Journal of Social Work and Science Education
Henny Johan
Physics Education Study Program, Teacher TrainingandScienceEducation Faculty University of Bengkulu
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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The Effect of Static Fluid Pressure Learning with Predict-Observe-Explain (POE)-Oriented Student Worksheets on Science Process Skills Nengsih, Desti Purnama; Koto, Irwan; Defianti, Aprina; Nirwana, Nirwana; Johan, Henny
Jurnal Pendidikan Fisika Vol. 11 No. 3 (2023): PENDIDIKAN FISIKA
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/jpf.v11i3.11842

Abstract

The purpose of this study was to investigate the effect of static fluid pressure learning with Predict, Observe, Explain (POE)-oriented student worksheets on the eighth-grade students' science process skills. This research employed a non-equivalent control group design. A total of 166 students from five classes in class VIII at State Junior High School 03 in Bengkulu City represented the research population. Students in class VIII-1 (control group) and class VIII-2 (experimental group), for a total of 58 students, were selected as subjects using non-probability sampling and the convenience sampling method. By applying non-parametric inferential statistics, particularly the Mann-Whitney U test, the hypothesis was examined. The results confirm that the use of POE-oriented worksheets in learning the concept of pressure in static fluids has a statistically positive effect at the significance level (0.05) with a p-value (0.003) on science process skills, and the effect size (r=0.39) is in the medium category. The availability of worksheets that rely on scaffolding strategies such as POE may enable students in secondary schools to construct their own knowledge during the learning process.The provision of worksheets that employ scaffolding techniques, such as the Predict-Observe-Explain (POE) approach, has the potential to facilitate the development of students' knowledge construction and science process abilities in secondary school settings.
BIODEGRADATION OF STYROFOAM WASTE BY HONGKONG MEALWORMS (Tenebrio molitor) Kurniani, Riska; Ruyani, Aceng; Johan, Henny; Defianti, Aprina; Yani, Ariefa Primair; Listiono, Arsela Eko
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 12 No. 1 (2025): Biolink August
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v12i1.15203

Abstract

This research aims to describe the ability of mealworms (Tenebrio molitor) to reduce styrofoam waste by observing the decrease in styrofoam weight and survival rate over one week. The method used is an experiment with a Completely Randomized Design (CRD) with 4 treatments (P0, P50, P100, P150) and 4 replications. The data was analyzed using descriptive statistics. The research stages include container preparation, larvae, stocking, feeding, and maintenance. The results show that the weight loss of styrofoam occurred at P50 (18.5%), P100 (22.75%), and P150 (36%). Meanwhile, the control group (P0) only experienced a weight loss of 1.5%. This indicates that the greater the number of T. molitor, the greater the weight loss of styrofoam. The highest survival rate for T. molitor was observed at P50, with a decrease in numbers of only 12.5%. At P150, the decrease was 16.8%, and at P100, it was 28.75%. This decrease is suspected to be caused by competition among T. molitor, population density, and a lack of nutrients despite the addition of supplementary feed. Based on the analysis of the results, it can be concluded that T. molitor is capable of reducing styrofoam waste, with the highest survival rate in the P50 group.
ANALISIS KEBUTUHAN PENGEMBANGAN E-BUKU SAKU SISTEM EKSKRESI GINJAL BERBASIS ANDROID MENGGUNAKAN APLIKASI CALIBRE, SIGIL DAN SUPREADER BAGI SISWA KELAS VIII SMP anjelie, Anggi; Wardana, Rendy Wikrama; Sakti, Indra; Karyadi, Bhakti; Johan, Henny
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 5 No. 2 (2024): Juni 2025
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.5.2.87-95

Abstract

ABSTRAK Penelitian ini bertujuan untuk mengembangkan buku saku elektronik berbasis android yang valid menggunakan aplikasi calibre, sigil dan Supreader pada materi sistem ekskresi yang layak untuk digunakan dalam proses pembelajaran. Serta mengetahui respon siswa terhadap buku saku elektronik berbasis android menggunkan aplikasi calibre dan sigil pada materi sistem ekskresi manusia digunakan dalam proses pembelajaran. Sampel dalam penelitian ini adalah seluruh peserta kelas VIII A dengan jumlah 27 siswa. Pengambilan sampel menggunakan teknik pengumpulan data menggunakan lembar angket kebutuhan guru dan siswa, lembar validasi ahli materi dan media serta  lembar respon siswa kemudian data dianalisis dengan teknik analisis data kuantitatif. Hasil penelitian menunjukkan bahwa e-buku saku menjadi salah satu bahan ajar yang dapat membantu peserta didik dalam mempelajari materi sistem ekskresi manusia.   Kata kunci: Pengembangan buku saku elektronik, sistem ekskresi manusia   ABSTRACT This study aims to develop a valid android-based electronic pocket book using the caliber and sigil applications on excretory system material that is suitable for use in the learning process. As well as knowing student responses to android-based electronic pocket books using the caliber and sigil applications on the human excretory system material used in the learning process. The sample in this study were all participants in class VIII A with a total of 27 students. Sampling used data collection techniques using questionnaires for teacher and student needs, material and media expert validation sheets and student response sheets, then the data were analyzed using quantitative data analysis techniques. The results of the study indicate that e-pocket books are one of the teaching materials that can assist students in studying the material of the human excretory system.   Keyword : Development of electronic pocket book, human excretory system
PENGARUH PAKAN IKAN BLEBERAN DAN IKAN TAMBAN TERHADAP PERTUMBUHAN TUKIK PENYU LEKANG (Lepidochelys olivacea) DI KONSERVASI PENYU ALUN UTARA DESA PEKIK NYARING KABUPATEN BENGKULU TENGAH Sari, Gina Aprella; Ruyani, Aceng; Johan, Henny; Defianti, Aprina; Yani, Ariefa Primair; Astuti, Annisa Puji
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 21, No 3 (2025): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.21.3.168-175

Abstract

Penyu lekang (Lepidochelys olivacea) merupakan spesies yang terancam punah sehingga upaya konservasi berbasis data ilmiah menjadi sangat penting. Penelitian ini bertujuan untuk mengkaji pengaruh pemberian dua jenis pakan lokal ikan bleberan (Thryssa sp.) dan ikan tamban (Sardinella fimbriata) terhadap pertumbuhan tukik penyu lekang di Konservasi Alun Utara, Desa Pekik Nyaring, Bengkulu Tengah. Metode yang digunakan dalam penelitian ini menggunakan eksperimental kuantitatif dengan desain rancangan acak lengkap (RAL) dengan lima perlakuan pakan yaitu A (50% S. fimbriata, 50% Thryssa sp.), B (75% S. fimbriata, 25% Thryssa sp.), C (25% S. fimbriata, 75% Thryssa sp.), D (100% S. fimbriata), dan E (100% Thryssa sp.). Pengukuran dilakukan setiap 7 hari sekali selama empat pekan. Pengamatan eksperimental kuantitatif terhadap empat parameter pertumbuhan, yaitu massa tubuh, panjang total, panjang karapas, dan lebar karapas. Kualitas air pemeliharaan juga dipantau meliputi suhu, salinitas, pH, dan Total Dissolved Solids (TDS) dengan frekuensi pengukuran satu kali setiap pekan. Analisis dilakukan dengan menghitung selisih rata-rata pertumbuhan antar waktu pada masing-masing perlakuan pakan. Hasil penelitian memperlihatkan bahwa pakan Thryssa sp. menunjukkan tren peningkatan pertumbuhan pada keempat aspek yang diamati dibandingkan S. fimbriata, dengan pertambahan tertinggi terdapat pada kelompok yang diberi 100% Thryssa sp. Diduga kandungan nutrisi dalam Thryssa sp., terutama lemak tak jenuh dan karbohidrat, berkontribusi terhadap efisiensi metabolisme dan percepatan pertumbuhan tukik. Temuan ini mendukung pemanfaatan pakan lokal bernutrisi tinggi sebagai bagian dari strategi konservasi nutrisi tukik penyu lekang.
Development of MITEDA (Mitigation of Earthquake Damage) Media for Wave Physics Using a STEM Approach to Enhance Students’ Computational Thinking Skills Dinata, Kristian; Mayub, Afrizal; Setiawan, Iwan; Johan, Henny; Sutarno, Sutarno
Journal Evaluation in Education (JEE) Vol 6 No 4 (2025): October
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jee.v6i4.1709

Abstract

Purpose of the study: The aim of this study is to develop and evaluate the effectiveness of a learning media called MITEDA (Mitigation of Earthquake Damage), which is based on the STEM approach and computational thinking, to support the teaching of wave physics. The study focuses on both the development process of the media and its impact on improving students’ computational thinking skills through contextual problem-solving using earthquake simulation and sensor-based data. Methodology: The research method used is Research and Development (R&D) with the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model. Tools used include Arduino Uno, SW-420 vibration sensor, LCD 16x2, and a buzzer. Software includes Arduino IDE and Proteus. Data collection used expert validation sheets, student questionnaires, observations, and computational thinking tests. Main Findings: The MITEDA learning media, comprising a digital seismograph kit and instructional module, was rated “highly feasible” by experts (Aiken’s V ≥ 0.80) and received positive student feedback for usability and engagement. Statistical analysis showed a significant improvement in computational thinking skills for the experimental group (N-Gain = 0.84) compared to the control group (N-Gain = 0.56), t(69) = 8.875, p < 0.001, d = 2.716, with the highest gains in abstraction and consistent high-level algorithmic performance. Novelty/Originality of this study: This study presents an innovative learning media, MITEDA, integrating STEM and computational thinking through earthquake simulation using Arduino-based sensors. It advances wave physics learning by providing real-time vibration data and contextual problem-solving, enhancing students’ analytical skills.
The effect of growth regulator on growth rate of amorphopallus titanum Anggraini, Lia; Mayub, Afrizal; Wardana, Rendy Wikrama; Ruyani, Aceng; Johan, Henny
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 1 (2025): April 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i1.4052

Abstract

The Amorphophallus flower is one of the Endangered species, so there needs to be an effort to preserve breeding with a fast time, namely artificial vegetative. In addition, the a need for a growth hormone to accelerate the growth process so that the number is not extinct, namely growth regulators (ZPT). The purpose of this study was to breed A. titanum vegetatively supported with growth regulators (ZPT) to improve quality and growth rates. The method used is a completely randomized design (CRD), which is divided into 4 treatments namely A (coconut water), B (shallots), C (bamboo shoots), and D (control) with a total of 4 replications so that in this study there were 16 plants (polybags). The results showed that the natural growth regulator treatment of shallot extract gave the best results in the parameter of the number of shoots, while coconut water extract gave the best results in the parameters of shoot length and growth time. Based on the results, it can be concluded that the use of natural growth regulators from coconut water, shallots, and bamboo shoots affects the growth rate of Amorphophallus titanum.
Kemampuan Filter Alami Berbasis Kulit Pisang (Musa paradisiaca L.) dalam Penjernihan Air Sihite, Nadia Okta Kristiana; Sutarno, Sutarno; Parlindungan, Deni; Johan, Henny; Karyadi, Bhakti
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v11i2.9161

Abstract

Waste from male banana peels (Musa paradisiaca Var. Paradisiaca), Ambon banana peels (Musa paradisiaca Var. Sapientum), and kepok banana peels (Musa acuminate L.) can be used as natural water filtration. The content of pectin, galacturonic acid and cellulose in banana peels can absorb heavy metals in water. This research aims to determine the filtration ability of natural waste materials such as kepok banana peels, Ambon banana peels and male banana peels which are most effectively used as water filtration media. This research consists of the sample preparation stage, carbonization stage, activation stage, and trial stage. The method used is an experimental method on a laboratory scale to measure Potential Hydrogen (pH), Total Dissolve Solid (TDS), and the level of clarity in water. The data obtained was tested using the Anova test with a significance level of 5% and the BNT test. Based on the BNT test which shows that male banana peels are not significantly proportional to the TDS of well water. Meanwhile, Ambon banana peel and Kepok banana peel are significantly proportional to TDS, and for Kepok banana peel, Ambon banana peel and male banana peel, it is significantly proportional to the pH of well water, because the significance results are less than 0.05%. From these findings it can be concluded that Kepok banana peels and Ambon banana peels are the most effective water filtration media to use.
Giving a combination of snails (Achatina fulica) and coconut dregs on the growth and protein content of maggots (Hermetia illucens) Purnama, Intan; Ruyani, Aceng; Yani, Ariefa Primair; Johan, Henny; Parlindungan, Deni; Nursa’adah, Euis
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 2 (August, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i2.22660

Abstract

This study aims to determine the effect of providing a combination of snails and coconut dregs as feed on the growth and protein content of Black soldier Fly (BSF) maggots. The method used is an experiment with a Completely Randomized Design (CRD) consisting of five treatments and three replications. The treatments consist of: P1 (100% snails), P2 (75% snails: 25% coconut dregs), P3 (50%: 50%), P4 (25%: 75%), and P5 (100% coconut dregs). Maggot maintenance was carried out for 14 days with feeding carried out every 2 days in the morning at 10:00. The research data observed included Weight, Thickness, Length which were analyzed statistically using the ANOVA test and the test was continued with the Least Significant Difference (LSD) test, and the Kruskal wallis test if the data was not normal, temperature and humidity, Feed consumption, Specific growth rate (SGR), Waste reduction index (WRI), and Protein content and water content were analyzed using the automatic kjeldahl test. The results of the study showed that the provision of snail and coconut dregs feed had a very significant effect on the growth of maggots (P <0.05) both in weight and thickness, but had no significant effect (P>0.05) on the growth of maggot length. Treatment P1 (100% snail) gave the best results with an average weight of 0.09 g, a length of 13.4 mm, and the highest protein content of 27.49%. Treatment P5 (100% coconut dregs) showed the lowest results in all main parameters. It was concluded that snail feed was more optimal in supporting the growth and protein content of BSF maggots. The high animal protein content and soft texture are the main reasons, which show the potential of snails as a highly nutritious alternative feed for BSF maggot cultivation. Keywords: BSF Maggots; Coconut dregs; Growth; Snails
UTILIZATION OF BANANA FROND BRIQUETTE CHARCOAL AS AN ALTERNATIVE TO ENVIRONMENTALLY FRIENDLY TECHNOLOGY Efriyani, Veni Efriyani; Wardana, Rendy Wikrama; Uliyandari, Mellyta; Johan, Henny; Saputra, Hendri
Jurnal Neutrino:Jurnal Fisika dan Aplikasinya Vol 16, No 2 (2024): APRIL
Publisher : Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/neu.v16i2.26743

Abstract

The purpose of this study is the use of banana frond briquette charcoal as an alternative to environmentally friendly technology. This type of research is an experiment. Experimental data collection techniques, documentation, and literature studies. The data analysis method in this study uses a quantitative approach. Banana frond briquettes are divided into 3 groups: A (81% banana frond charcoal: 19% adhesive), B (71% banana frond charcoal: 29% adhesive), and C (91% banana frond charcoal: 9% adhesive). The results of the banana frond briquette test on the C sample of 91% charcoal briquettes with 9% adhesive showed the best results with a calorific value of 4571 kcal/kg. The study concluded that the best calorific value in sample C with a charcoal composition of banana fronds was 91%; 9% adhesive was 4571 cal/kg.
PENGEMBANGAN BOOKLET KEANEKARAGAMAN GASTROPODA DI PANTAI CUKUH RAYA KABUPATEN KAUR SEBAGAI BAHAN AJAR KLASIFIKASI MAKHLUK HIDUP UNTUK SISWA SMP Agustina, Resta; Johan, Henny; Primairyani, Ariefa; Nursa’adah, Euis; Wikrama Wardana, Rendy
Jurnal Biogenerasi Vol. 10 No. 1 (2024): Volume 10 Nomor 1, Agustus 2024 - Februari 2025
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v10i1.4608

Abstract

The purpose of this study was to determine the diversity of gastropods on Cukuh Raya Beach, Kaur Regency and to produce a valid classification booklet of living things. Based on the results of sampling at Cukuh Raya Beach, 12 species of gastropods were obtained, namely: M. annulus, T. chrysostomus, T. canaliculatus, R. aspera, N. canrena, C. femorale, V. musica, N. undata, T. radiatus G., R. nilotica, O. sayana R., and O. polpasta D. The research and development design used, namely (R&D) is based on the 4-D model starting from defining (Define), designing (Design), developing (Develop), and disseminating (Disseminate), but only carried out up to the development stage. The booklet developed was made with an attractive cover and Open Sans font that is in accordance with EYD. The booklet contains a front cover, foreword, table of contents, learning objectives, indicators of learning objective achievement, summary of materials, gastropod diversity, evaluation questions, and bibliography. The average results by expert (lecturer) and practitioner (teacher) validation obtained a percentage of the booklet content aspect of 90%, language aspect of 93.8%, and graphic/design aspect of 88.6% with an average of 90.8% in the category of "very feasible". Thus, it can be concluded that the developed product is very feasible to be tested in the learning process.
Co-Authors ACENG RUYANI Agustina, Resta Ananda, Resti Andriani, Sefti anjelie, Anggi Ariefa Primair Yani Ariefa Primairyani, Ariefa Arsela Eko Listiono Asti, Nora Ayudi ASTUTI, ANNISA PUJI BHAKTI KARYADI Bodi Gunawan Defianti, Aprina Detty Fitriani Devicawati, Devicawati Dinata, Kristian Efriyani, Veni Efriyani Eko Risdianto Elsi Adelia Fitri Endah Lestari Endang Widi Winarni Fadli, Darmawan Ikhlas Fahmizal, Fahmizal Farid, Muchammad Firdaus, M. Lutfhi Fitria, Jeni Halauddin Harlita Hendri Saputra Herawati, Asmida Idris, Beni Syakban Indra Sakti Irwan Koto, Irwan Iskandar, Aiza Sabina Putri Iwan Setiawan Johan, Septi Kurniani, Riska Lia Anggraini M. Lutfi Firdaus, M. Lutfi Macariola, Julie Simon Maghribi, Faritz Bagda Maulana, Yudi Mauren, Dhyna Sefia Mayub, Afrizal Muhammad Farid Nengsih, Desti Purnama Nirwana, Nirwana Noni Noviana Nurannisa, Fadillah E Nurcahyani Nurhamidah Nursaadah, Euis Nursa’adah, Euis Parlindungan, Deni Pathonawiratama, Gustin Purnama, Intan Purwaningsih Putri, Desy Hanisa Putriani, Eli Raden Mohamad Herdian Bhakti Rahmayani, Desti Refrizon Refrizon Sari, Gina Aprella Sari, Klarisa Y Sihite, Nadia Okta Kristiana Sudirman Sudirman Sudirman Sudirman Suhendra Suhendra Sutarno Sutarno Tri W, Endah Uliyandari, Mellyta Umaya Umaya, Umaya Utomo, Niko Wardana, Rendy Wikrama wati, Devica Widiasih, Widiasih Wikrama Wardana, Rendy Wikrama Whardana, Rendy