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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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Rat Island as a Natural Laboratory: Exploration of Environmental Physics Concepts Maulana, Yudi; lestari, Endah; Fitriani, Detty; Dinata, Kristian; Tri W, Endah; Johan, Henny
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol 13, No 2 (2024): September
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/sainsmat132574362024

Abstract

This research aims to reveal the potential of Rat Island as a marine ecotourism destination as well as a contextualized physics learning environment. Using the descriptive qualitative method and literature review support, data were obtained through field observations and literature analysis related to sediment topography, climate, and physics concepts such as ocean waves and tree height measurements. Previous research stated that Rat Island has marine ecotourism potential that can be used as contextual physics learning material. Observation activities in the natural laboratory of Rat Island by Master of Science Education students succeeded in increasing the enthusiasm for learning and inquiry skills. Physics analysis related to tree height measurement provides a deep understanding of physics concepts that can be applied in everyday life. In addition, the research showed the tidal pattern on Rat Island as a periodic physical phenomenon that can be studied and predicted. The concept of Rat Island as a natural laboratory supports its potential as a place for learning and experimentation while supporting environmental conservation efforts. Overall, Rat Island has great potential as a source of contextual physics learning and a sustainable marine ecotourism destination.Keywords: Rat Island, Physics Learning, Tidal Wave, Natural Laboratory.
Rat Island as a Natural Laboratory: Exploration of Environmental Physics Concepts Maulana, Yudi; lestari, Endah; Fitriani, Detty; Dinata, Kristian; Tri W, Endah; Johan, Henny
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol 13, No 2 (2024): September
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/sainsmat132574362024

Abstract

This research aims to reveal the potential of Rat Island as a marine ecotourism destination as well as a contextualized physics learning environment. Using the descriptive qualitative method and literature review support, data were obtained through field observations and literature analysis related to sediment topography, climate, and physics concepts such as ocean waves and tree height measurements. Previous research stated that Rat Island has marine ecotourism potential that can be used as contextual physics learning material. Observation activities in the natural laboratory of Rat Island by Master of Science Education students succeeded in increasing the enthusiasm for learning and inquiry skills. Physics analysis related to tree height measurement provides a deep understanding of physics concepts that can be applied in everyday life. In addition, the research showed the tidal pattern on Rat Island as a periodic physical phenomenon that can be studied and predicted. The concept of Rat Island as a natural laboratory supports its potential as a place for learning and experimentation while supporting environmental conservation efforts. Overall, Rat Island has great potential as a source of contextual physics learning and a sustainable marine ecotourism destination.Keywords: Rat Island, Physics Learning, Tidal Wave, Natural Laboratory.
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.
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