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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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INVESTIGATION OF SUBSURFACE GROUNDWATER USING THE VES METHOD AROUND DENDAM LAKE, BENGKULU CITY, INDONESIA Maghribi, Faritz Bagda; Refrizon, Refrizon; Suhendra, Suhendra; Fadli, Darmawan Ikhlas; Halauddin; Idris, Beni Syakban; Johan, Henny; Putriani, Eli
Spektra: Jurnal Fisika dan Aplikasinya Vol. 8 No. 2 (2023): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 8 Issue 2, August 2023
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.082.04

Abstract

Concerns have been raised over the availability of water in the Dendam Lake neighborhood of Bengkulu City and the areas surrounding it. The location is characterized by a number of unsuccessful water wells. These issues are the direct and indirect results of the geological formations that are present in the region, specifically Aluvium (which consists of boulders, clasts, sand, silt, mud, and clay). A MAE X-612 EM resistivity meter was utilized in order to get a total of twenty Vertical Electric Sounding (VES) measurement points. Using the software programs Progress and Surfer, the data that was gathered was plotted on a two-log graph. The geoelectric layer and layer parameter maps that were made were prepared with the use of quantitative and qualitative interpretations. It was determined that there were between three and five geoelectric layers. It has been demonstrated that the resistivity of the subsurface shallow groundwater zone ranges from 10 to 20 Ωm at a depth of 4 to 15 meters. According to the findings of this research project, employing the VES geo-electrical exploration approach is likely capable of effectively outlining the subsurface and shallow groundwater. In addition, there is no information available regarding the precise depth of the groundwater table in the region. On the other hand, the underground groundwater at this location has a depth that is shallower than the norm.
ANALISIS KETERAMPILAN BERPIKIR KRITIS SISWA KELAS VII DI SMPN 9 KOTA BENGKULU DALAM PEMBELAJARAN IPA PADA MATERI PENCEMARAN LINGKUNGAN Mauren, Dhyna Sefia; Yani, Ariefa Primair; Uliyandari, Mellyta; Parlindungan, Deni; Johan, Henny
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 4 No. 1: Desember 2023
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.4.1.37-46

Abstract

ABSTRAK   Penelitian ini adalah jenis penelitian Deskriptif Kuantitatif ,karena penelitian ini bersifat mengkaji atau menggambarkan keadaan atau kondisi yang ada dilapangan. Penelitian deskriptif  kuantitatif tidak perlu mencari atau menerangkan hubungan antara variabel, menguji hipotesis dan lain sebagianya. Penelitian deskriptif kuantitatif hanya mencoba menggambarkan apa adanya. Jenis penelitian ini dilakukan untuk mengetahui keterampilan berpikir kritis siswa dengan melihat pada 4 aspek utama yakni memahami masalah, memberikan argumen, melakukan induksi, dan mengambil keputusan dalam menyelesaikan soal uraian seputar materi pencemaran lingkungan tujuan penelitian ini untuk Mengetahui keterampilan berpikir kritis siswa ke VII di SMPN 9 Kota Bengkulu dalam pembelajaran IPA pada Materi Pencemaran Lingkungan. Berdasarkan hasil data siswa bahwa secara umum keterampilan berpikir kritis siswa SMP Negeri 9 Kota Bengkulu berada pada kategori rendah yakni sebesar 0,42% dimana hampir dari setengah partisipan berada pada kategori ini. Peringkat kedua ada pada kategori sedang sebesar 0,30%, disusul oleh kategori tinggi sebesar 0,25%, dan persentase paling rendah  adalah kategori sangat tinggi 0,03%. Dari  hasil analisis data yang telah diteliti, dapat ditarik kesimpulan dari keterampilan berpikir kritis pada materi pencemaran lingkungan, yaitu nilai rata-rata indikator dengan rata-rata 60,63% dan dengan kategori rendah. Kata kunci : Analisis, Berpikir Siswa, Pencemaran Lingkungan,SMPN 9 Kota Bengkulu.                                      ABSTRACT This research is a type of quantitative descriptive research, because this research is to examine or describe the conditions or conditions that exist in the field. Quantitative descriptive research does not need to find or explain the relationship between variables, test hypotheses and others in part. Quantitative descriptive research only tries to describe what is. This type of research was conducted to determine students' critical thinking skills by looking at 4 main aspects, namely understanding the problem, giving arguments, conducting inductions, and making decisions in solving descriptions about environmental pollution material. at SMPN 9 Bengkulu City in learning science on Environmental Pollution Materials. Based on the results of student data that in general the critical thinking skills of SMP Negeri 9 Bengkulu City students are in the low category, namely 0.42% where almost half of the participants are in this category. The second rank is in the medium category of 0.30%, followed by the high category of 0.25%, and the lowest percentage is the very high category of 0.03%. From the results of data analysis that has been researched, conclusions can be drawn from critical thinking skills on environmental pollution material, namely the average value of indicators with an average of 60.63% and in the low category.  Keywords: Analysis, Student Thinking, Environmental Pollution, SMPN 9 Bengkulu City.
Assembling, simulating, and recording robot videos as an effort to motivate middle school students and teachers of Science in Bengkulu Province Mayub, Afrizal; Fahmizal, Fahmizal; Firdaus, M. Lutfi; Johan, Henny; Ruyani, Aceng; Karyadi, Bhakti
IAES International Journal of Robotics and Automation (IJRA) Vol 12, No 2: June 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijra.v12i2.pp146-156

Abstract

The aim of this study was to determine the motivation of science teachers and students towards science after participating in the activity of assembling, simulating, and recording line follower robots as an effort to motivate middle school students and teachers towards science in Bengkulu Province. The research was done by direct practicing, where 60 students and 15 teachers of three junior high school (SMP): SMP Negeri 06 Seluma, SMP Negeri 02 Kota Bengkulu, and SMP Negeri 8 Rejang Lebong, were involved as the research subjects. The research activity concluded that the schools are ready to prepare simple electronics/robot laboratories for the three research subjects and the science teachers and students were motivated to learn science. It was seen from the score of 3.95 (scale of 1 to 5) for students, and for the science teacher, the score was 3.83 (scale of 1 to 5). The science teachers will follow up on robotics activities so that students will be interested in learning science at home and school.
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.
Effect of Feeding Fruit and Vegetable Wastes on Growth and Protein Content of BSF Maggot (Hermetia illucens): Pemberian Pakan Sampah Buah dan Sayur terhadap Pertumbuhan dan Kadar Protein Maggot BSF (Hermetia illucens) Ananda, Resti; Johan, Henny; Nursaadah, Euis; Ruyani, Aceng; Harlita
Jurnal Ilmu Nutrisi dan Teknologi Pakan Vol. 22 No. 1 (2024): Jurnal Ilmu Nutrisi dan Teknologi Pakan
Publisher : Departemen Ilmu Nutrisi dan Teknologi Pakan Fakultas Peternakan Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jintp.22.1.43-49

Abstract

Black Soldier Fly maggot can reduce the amount of organic waste, especially fruit and vegetable wastes. Its break down organic waste into its food containing very high protein, so it become a promising animal feed. This study aimed to analyze effect of feeding tomato fruit waste and mustard vegetable waste on the growth and protein content of BSF maggot (Hermetia illucens). This study applied a complete randomized design (CRD) with 5 treatments (different percentages of tomato and mustard vegetable wastes) and 3 replications. The growth parameters measured were mass, length, thickness of BSF maggot which were analyzed statistically using the ANOVA test and continued with the Least Significant Difference (LSD) test. Protein content was analyzed using the automatic Kjeldahl test. Our results showed that feeding fruit and vegetable wastes have a significant effect on growth (mass, length, thickness) and maggot protein levels. It can be concluded that feeding fruit and vegetable wastes affect the growth (mass, length, thickness) and protein content of BSF maggot. Key words: growth, maggot, mustard waste, protein, tomato waste
Class Mapping of Tsunami's Risk using Global Positioning Geodetic System in Bengkulu University's Environment Umaya, Umaya; Mayub, Afrizal; Johan, Henny; Farid, Muchammad; Wardana, Rendy Wikrama
Kasuari: Physics Education Journal (KPEJ) Vol. 7 No. 1 (2024): June 2024
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v7i1.517

Abstract

Bengkulu University is located in the coastal area precisely in Muara Bangka Hulu sub-district of Bengkulu City, which is one of the sub-districts bordering the coastline. Areas or regions bordering the coastline have a higher level of tsunami hazard compared to areas or regions far from the coastline. The marking of the evacuation point area in the Bengkulu University environment has not adjusted to the disaster mitigation parameters. The purpose of this research is to analyse and map the tsunami hazard class at Bengkulu University in a preventive mitigation effort as well as a consideration for future policies. Primary data measurements used Geodetic GPS devices and were analysed using GAMIT and GLOBK 10.6 software. While secondary data obtained from geospatial information agencies and DEMNAS were analysed using arcgis software. Based on the results of the analysis, it is known that the environment of Bengkulu University as a whole has 3 classes of hazard zones including high hazard class, medium hazard class, and low hazard class.
Application of Phenomena Based-Interactive Conceptual Instruction (PB-ICI) to Foster Critical Thinking Skills and Spiritual Attitude Johan, Henny; Mayub, Afrizal; Wardana, Rendy Wikrama; Noviana, Noni; Umaya, Umaya
Kasuari: Physics Education Journal (KPEJ) Vol. 7 No. 2 (2024): December 2024
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v7i2.600

Abstract

Learning programmes need to be designed to provide cognitive aspects, especially critical thinking skills with indikators and aspects of spiritual attitudes in the learning process. This study aims to apply the Phenomena Based-Interactive Conceptual Instruction (PB-ICI) lecture model to equip critical thinking skills and instil spiritual values through science learning. This research uses a quasi-experiment. The results showed that the average pre-test score of critical thinking skills was 43.45 in the low category, the average post-test score was 79.48 in the high category and the average N-gain was 0.64 in the medium category. The results of the analysis of the cultivation of spiritual values show that PB-ICI learning can instil spiritual values related to the nature of divinity with an average response score of 88. Thus it is concluded that PB-ICI learning can improve critical thinking, instil spiritual values and get a very good response after PB-ICI learning implementation activities.
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.
Teacher's Perception of Thermodynamic Law Module Developed in Training through Student’s Critical Thinking Skills Risdianto, Eko; Fitria, Jeni; Johan, Henny; Macariola, Julie Simon
Journal of Social Work and Science Education Vol. 1 No. 1 (2020): Journal of Social Work and Science Education
Publisher : Yayasan Sembilan Pemuda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52690/jswse.v1i1.19

Abstract

This study determined teacher’s perceptions about the ability of modules developed in training students' critical thinking skills. This research is a part of research and development with the development model used, namely 3D Development, namely Define, Design, and Develop which was adapted. The instruments used were observation sheets, student needs questionnaire sheets and teacher perception questionnaire sheets. Questionnaire needs were given to 100 students of class XI Science while perception questionnaires were given to 30 high school/vocational school physics teachers. Data analysis techniques used are quantitative analysis techniques and qualitative analysis techniques. The instrument used to obtain perception data was categorized as valid with a value of Va = 3.11 and reliable with a Crobach's Alpha Coefficient calculated 0.925 greater than the standard Crobach's Alpha Coefficient value of 0.60. The results of the perception questionnaire analysis obtained an average percentage of teacher perceptions of 77.87% with a very good category.
PENGEMBANGAN HANDOUT SEBAGAI BAHAN AJAR MATERI INTERAKSI MAKHLUK HIDUP DENGAN LINGKUNGAN UNTUK PESERTA DIDIK KELAS VII SMP Andriani, Sefti; Yani, Ariefa Primair; Johan, Henny; Sutarno, Sutarno; Parlindungan, Deni
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 5 No. 1: Desember 2024
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.5.1.42-52

Abstract

ABSTRAK Penelitian ini bertujuan untuk mengetahui validitas dan tanggapan peserta didik terhadap keterbacaan produk handout pada materi interaksi makhluk hidup dengan lingkungan untuk peserta didik kelas VII SMP. Penelitian ini menggunakan metode research and development (R&D) dengan mengacu pada model 4D yang dimodifikasi menjadi 3D. Pada penelitian ini peneliti membatasi hanya sampai tahap develop. Teknik pengumpulan data yang digunakan berupa observasi, wawancara, dan angket. Instrumen pengumpulan data yang digunakan berupa lembar observasi, lembar wawancara, lembar angket kebutuhan, lembar validasi ahli, dan lembar angket persepsi peserta didik. Validasi produk handout dilakukan oleh 5validator ahli (2 dosen dan 3 guru). Uji keterbacaan produk dilakukan oleh 32 peserta didik SMPN 9 Kota Bengkulu. Berdasarkan hasil validasi ahli terhadap bahan ajar handout pada materi interaksi makhluk hidup dengan lingkungan yang telah dikembangkan secara keseluruhan mendapat skor rata-rata 0,926 dalam kategori “validitas tinggi”. Hasil uji keterbacaan produk yang dilakukan oleh 32 peserta didik kelas VII terhadap handout pada materi interaksi makhluk hidup dengan lingkungan, secara keseluruhan memperoleh persentase rata˗rata 86,78% dalam kategori “sangat baik”. Berdasarkan hasil tersebut dapat disimpulkan bahwa bahan ajar handout yang dikembangkan memiliki validitas tinggi dan sangat baik secara konseptual sehingga dapat dilanjutkan ke tahap uji coba lapangan.   Kata kunci: R&D, bahan ajar, handout, interaksi makhluk hidup dengan lingkungan.   ABSTRACT This study aims to determine the validity and responses of students to the readability of handout products on the interaction of living things with the environment for class VII students of junior high school. This study uses the research and development (R&D) method with reference to the modified 4D model into 3D. In this research, the researcher limits it only to the develop stage. Data collection techniques used in the form of observation, interviews, and questionnaires. The instrument used in this study was a observation sheets, interview sheets, needs questionnaire sheets, expert validation sheets, and student perception questionnaire sheets. Handout product validation was carried out by 5 expert validators (2 lecturers and 3 teachers). The product readability test was carried out by 32 students at SMPN 9 Bengkulu City. Based on the results of expert validation of the handout teaching materials on the interaction material of living things with the environment that has been developed as a whole gets an average score of 0.926 in the "high validity" category. Based on the results of the product legibility test conducted by 32 class VII students on handouts on the interaction of living things with the environment, overall, they obtained an average percentage of 86.78% in the "very good" category. Based on these results it can be concluded that the developed handout teaching materials have high validity and are very good conceptually so that they can be continued to the field trial stage. Keywords: R&D, teaching materials, handouts, interaction of living things with the environment.
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