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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 Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Bioscientist : Jurnal Ilmiah Biologi DIKSAINS : Jurnal Ilmiah Pendidikan Sains SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam Indonesian Journal of Community Empowerment and Service 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 Humanities 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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Reduction lead metal in process marinating local food fish pendap using lemon juice (citrus limon) Asti, Nora Ayudi; Johan, Henny; Parlindungan, Deni; Primairyani, Ariefa; Defianti, Aprina; Nursaadah, Euis
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 2 (2025): November 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i2.5209

Abstract

Fish have the potential to be contaminated with heavy metals such as lead, which can originate from human activities, industry, and ports. The Bengkulu people have a traditional processing method that is believed to reduce heavy metal content in fish through the immersion of fish in Pendap dishes using water and lemon. This study aims to observe the reduction of heavy metal content in fish during the immersion process using water and lemon juice in Pendap dishes. The research was experimental with positive and negative results and analyzed using the SPSS ANOVA test to see significant differences between treatment groups. The fish used as samples included Tongkol Sarda orentalis, Kembung Rastrelliger kanagurta, Tuna Thunnus albacares, and Tenggiri Scomberomorus Lacepède. The parts of the fish that were analyzed included the muscles, liver, and gills. All samples were exposed to Pb(NO3)2 and divided into 3 treatment groups: 1 positive control, 2 precipitated with water, and 3 precipitated with lemon juice (Citrus limon). The samples were tested using the reagents NaOH, KI, NH4OH, and HCl. Based on the research results, it was found that the application of lemon juice produced significant results in reducing Pb levels, as indicated by the negative test results.
Effect honje forest fruit juice administration on hemoglobin levels following mercury chloride treatment in mice Iskandar, Aiza Sabina Putri; Ruyani, Aceng; Parlindungan, Deni; Johan, Henny; Mayub, Afrizal
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 2 (2025): November 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i2.5561

Abstract

Exposure to mercury chloride (HgCl?) is known to induce oxidative stress, which negatively affects the hematological system, including a decrease in hemoglobin levels. This study aims to analyze the effect of honje fruit juice (Etlingera hemisphaerica), known for its high antioxidant content, on hemoglobin levels in mice (Mus musculus) exposed to mercury chloride. This study used an experimental method involving several groups of mice, namely group K1 (control), group K2 (given honje fruit juice), and group K3 (injected with mercury and given honje fruit juice). Hemoglobin levels were measured using a Sahli tube. The results showed that honje fruit juice significantly increased hemoglobin levels in mice exposed to mercury chloride compared to the control group. These findings indicate that the antioxidant content in honje fruit can help reduce the toxic effects of mercury chloride on the circulatory system. Therefore, honje fruit juice has the potential to be developed as a natural therapeutic agent in efforts to mitigate the toxic effects of mercury chloride.
PENGEMBANGAN BAHAN AJAR MATERI PENCEMARAN LINGKUNGAN TERINTEGRASI BENCANA BANJIR UNTUK SISWA SMP KELAS VII Mariska, Dita; Johan, Henny; Nirwana, Nirwana; Sakti, Indra; Wardana, Re
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 6 No. 1: Desember 2025
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.6.1.54-60

Abstract

  ABSTRAK   Penelitian ini bertujuan untuk menghasilkan bahan ajar materi pencemaran lingkungan terintegrasi bencana banjir yang tervalidasi oleh para ahli. Jenis penelitian ini adalah Penelitian dan Pengembangan (R&D) dengan model pengembangan 4D yang terdiri dari define, design, develop dan disseminate namun hanya dilakukan sampai tahap develop. Bahan ajar bahan ajar diuji kelayakan oleh dua validasi ahli dan dua ahli praktisi (Guru) yang menilai pada aspek materi, aspek penyajian, aspek kebahasaan dan aspek media. Intrumen yang digunakan dalam penelitian ini adalah lembar wawancara, lembar review document dan angket validasi. Hasil validasi ahli dan ahli praktisi terhadap bahan ajar materi pencemaran lingkungan terintegrasi bencana banjir yang telah dikembangkan termasuk dalam kategori layak karena telah memenuhi aspek kelayakan isi, aspek kelayakan penyajian dan aspek kelayakan bahasa yang lugas.   Kata  kunci—Bahan ajar, Bencana banjir, Pencemaran Lingkungan   ABSTRACT   This study aims to produce teaching materials on integrated environmental pollution materials for flood disasters validated by experts. This type of research is Research and Development (R&D) with a 4D development model consisting of define, design, develop and disseminate but is only carried out until the develop stage. Teaching materials for teaching materials are tested for feasibility by two validation experts and two expert practitioners (Teachers) who assess the material aspects, presentation aspects, linguistic aspects and media aspects. The instruments used in this study were interview sheets, document review sheets and validation questionnaires. The results of expert and practitioner validation of the integrated environmental pollution teaching materials for flood disasters that have been developed are included in the appropriate category because they have fulfilled the aspects of content appropriateness, presentation appropriateness and clear language appropriateness.   Keywords—Teaching materials, Flood, Environmental pollution
PENGEMBANGAN LKPD MATERI PENCEMARAN LINGKUNGAN BERBASIS PENDEKATAN JELAJAH ALAM SEKITAR (JAS) BERORIENTASI PADA PENGUASAAN KONSEP UNTUK SISWA KELAS VII SMP Fitriani, Pera; Johan, Henny; Uliyandari, Mellyta; Sutarno, Sutarno; Parlindungan, Deni
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 6 No. 1: Desember 2025
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.6.1.43-53

Abstract

ABSTRAK   Penelitian ini bertujuan untuk mengembangkan LKPD materi pencemaran lingkungan berbasis Pendekatan Jelajah Alam Sekitar (JAS) untuk SMP kelas VII. Jenis Penelitian yang digunakan merupakan penelitian dan  pengembangan (Research and Development) dengan model 4D yang dibatasi pada tahap 3D yaitu Define, Design dan Develop. Teknik pengumpulan data yang digunakan berupa observasi dan wawancara. Insturumen penelitian berupa lembar observasi, lembar panduan wawancara guru, lembar validasi ahli dan lembar angket uji keterbacaan peserta didik. Teknik analisis data dilakukan secara deskriptif dan kuantitatif. Hasil penelitian menunjukan bahwa LKPD berbasis Pendekatan Jelajah Alam Sekitar (JAS) sangat layak dan dapat digunakan berdasarkan hasil validasi ahli. Hasil uji keterbacaan peserta didik terhadap LKPD yang dikembangkan menujukan kategori sangat baik. Simpulan dari hasil penelitian ini menujukan bahwa LKPD yang dikembangkan dinyatakan layak oleh tim ahli dan mendapat respon positif dari peserta didik untuk dilanjutkan dalam uji coba skala luas guna melihat efektivitas produk.   Kata  kunci : LKPD, Pencemaran Lingkungan, Jelajah Alam Sekitar (JAS)   ABSTRACT   This study aims to develop LKPD on environmental pollution material based on the Explore Nature Around (JAS) approach for junior high school grade VII. The type of research used is research and development (Research and Development) with the 4D model which is limited to the 3D stage, namely Define, Design and Develop. The data collection techniques used were observation and interview. Research instruments in the form of observation sheets, teacher interview guide sheets, expert validation sheets and student readability test questionnaires. Data analysis techniques are descriptive and quantitative. The results showed that the LKPD based on the Explore Nature Around Approach (JAS) was very feasible and could be used based on the results of expert validation. The results of the students' readability test of the LKPD developed showed a very good category. The conclusion from the results of this study indicates that the LKPD developed was declared feasible by a team of experts and received a positive response from students to be continued in a wide-scale trial to see the effectiveness of the product.   Keywords : LKPD, Environmental Pollution, Explore Nature Around (JAS)
PELATIHAN PENGEMBANGAN BAHAN AJAR BERBASIS DIGITAL MENGGUNAKAN CANVA BAGI GURU-GURU SDIT NURUL FIKRI KOTA BENGKULU XXX, SATURN; Johan, Septi; Supiyati, Supiyati; Kurniawan, Chandra; Johan, Henny
Indonesian Journal of Community Empowerment and Service (ICOMES) Vol. 5 No. 2 (2025): December 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/icomes.v5i2.43508

Abstract

Kegiatan pembelajaran daring menuntut guru untuk melakukan berbagai penyesuaian, baik metode maupun media pembelajaran, agar materi dapat tersampaikan dengan efektif kepada peserta didik tanpa memberatkan mereka. Salah satu alternatif media yang dapat digunakan adalah bahan ajar digital berbasis e-modul. Kegiatan pengabdian kepada masyarakat (PPM) ini bertujuan untuk meningkatkan kompetensi guru dalam mengembangkan bahan ajar digital menggunakan aplikasi Canva. Metode pelaksanaan kegiatan terdiri atas tahap persiapan, pelaksanaan pelatihan, dan evaluasi. Tahap persiapan meliputi perizinan, koordinasi dengan mitra, serta penyiapan alat, bahan, soal pre-test dan post-test, serta materi pelatihan. Koordinasi awal dilakukan bersama Kepala Sekolah SDIT Nurul Fikri Kota Bengkulu untuk menyusun jadwal dan teknis pelaksanaan kegiatan. Tahap selanjutnya adalah pelaksanaan kegiatan, sosialisasi diawali dengan pre-test untuk mengukur pengetahuan awal peserta tentang Canva, dilanjutkan dengan sosialisasi dan pelatihan pembuatan bahan ajar digital menggunakan Canva, serta diakhiri post-test untuk mengevaluasi hasil pelatihan. Berdasarkan hasil post-test, seluruh peserta telah mencoba membuat bahan ajar digital dan mengenal fitur-fitur Canva. Hasil pre-test dan post-test menunjukkan adanya peningkatan pemahaman peserta sebesar 95% setelah mengikuti kegiatan ini. Kegiatan ini diharapkan dapat menjadi solusi efektif bagi guru dalam menghadapi tantangan pembelajaran daring yang menarik dan inovatif.
Integration of the Pyrolysis Context with the Heat Module to Improve Students' Mastery of Concepts Nofita, Inka; Mayub, Afrizal; Johan, Henny
Kasuari: Physics Education Journal (KPEJ) Vol. 8 No. 2 (2025): December 2025
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v8i2.923

Abstract

The energy crisis due to declining fossil fuel reserves and the increase in organic waste, such as coffee husk waste in Kepahiang Regency, has prompted the need for renewable energy-based solutions. This research aims to develop a science learning module based on the local context through the integration of the concept of pyrolysis of coffee husk waste in the heat and its displacement material. The research method uses the ADDIE model until the validation stage. Data were collected through needs questionnaires and expert validation sheets, analyzed descriptively. The results showed the low interest and understanding of students in the caloric material, as well as the dominance of textual learning methods without direct practice. Most students stated the need for modules that are visual, contextual, and easy to understand. The modules developed are declared valid by experts from the material, linguistic, and graphic aspects. In conclusion, the integrated heat module for coffee skin waste pyrolysis is considered feasible as an innovative teaching material on the concept of heat contextually and applicatively.
Analisis Ketinggian Gelombang dan Kecepatan Angin Perairan Pesisir Bengkulu Najwa, Farah Aulia; Johan, Henny; Defianti, Aprina; Mayub, Afrizal; Hakim, Lukmanul
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 1 (2026): Februari
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i1.1402

Abstract

The purpose of this study is to describe wave height and wind speed in Bengkulu City over the last five years (2019–2024). This research employed a quantitative descriptive method. The data collection technique used secondary data obtained from documentation of the Meteorological, Climatological, and Geophysical Agency (BMKG) of Bengkulu Province. The data were analyzed using descriptive statistical analysis techniques. The results indicate that wave height and wind speed along the coastal waters of Bengkulu City varied significantly from January to December during the years 2019, 2020, 2021, 2022, 2023, and 2024. The months with the highest potential for high waves were June, July, August, and September, with an average wave height of 3.5–4 meters and wind speeds of 20–25 knots. The lowest and moderate waves occurred in January, February, March, April, May, October, November, and December, with wave heights ranging from 1.5–3.5 meters and wind speeds of 6–15 knots.
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 Chandra Kurniawan, Chandra 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 Fitriani, Pera Halauddin Harlita Hendri Saputra Herawati, Asmida Idris, Beni Syakban Indra Sakti Irwan Koto, Irwan Iskandar, Aiza Sabina Putri Johan, Septi Kurniani, Riska Lia Anggraini Lukmanul Hakim M. Lutfi Firdaus, M. Lutfi Macariola, Julie Simon Maghribi, Faritz Bagda Mariska, Dita Maulana, Yudi Mauren, Dhyna Sefia Mayub, Afrizal Muhammad Farid Najwa, Farah Aulia Nengsih, Desti Purnama Nirwana, Nirwana Nofita, Inka 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 Suhendra Suhendra Supiyati . Sutarno Sutarno Tri W, Endah Uliyandari, Mellyta Umaya Umaya, Umaya Utomo, Niko Wardana, Re Wardana, Rendy Wikrama wati, Devica Widiasih, Widiasih Wikrama Wardana, Rendy Wikrama Whardana, Rendy XXX, SATURN