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All Journal Jurnal Pembangunan Pendidikan: Fondasi dan Aplikasi Publikasi Pendidikan Jurnal Fisika FLUX BIOMA BIOEDUKASI Jurnal Ilmiah Pendidikan Fisika Jurnal IPA Terpadu Journal of Science Education Research PENDIPA Journal of Science Education Diklabio: Jurnal Pendidikan dan Pembelajaran Biologi BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains Jurnal Pengabdian Magister Pendidikan IPA Jurnal Kumparan Fisika Agroteknika Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Hydrogen: Jurnal Kependidikan Kimia Bioscientist : Jurnal Ilmiah Biologi Prosiding Seminar Nasional Biologi, Teknologi dan Kependidikan (Biotik) DIKSAINS : Jurnal Ilmiah Pendidikan Sains Finger : Jurnal Ilmiah Teknologi Pendidikan JIPI (Jurnal IPA dan Pembelajaran IPA) Engagement: Jurnal Pengabdian Kepada Masyarakat Jurnal Biosilampari: Jurnal Biologi IJIS Edu : Indonesian Journal of Integrated Science Education SPEKTRA: Jurnal Kajian Pendidikan Sains
Bhakti Karyadi
UNIVERSITAS BENGKULU
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Other

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Development of a Manual Book on Processing Flour of Mole Crab to Provide Students Science Process Skills Widia Gusti; Aceng Ruyani; Urip Santoso; Bhakti Karyadi; Euis Nursaadah
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 7, No 2 (2025): July 2025
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v7i2.6012

Abstract

This study is an experimental model a group pretest-posttest design. This study aims to: 1) Describe the feasibility of the manual book in learning to train students science process skills based on the results of flour processing through validity tests and trials, 2) Describe the results of improving students science process skills based on the manual book of flour processing made from mole crab. Validation of the manual book was carried out by experts to determine the feasibility of the content, language and design aspects, the results is Aiken-V score of 0.86 (valid). The implementation of the use of manual books in learning was carried out on students majoring in culinary arts and industry at SMKN 7 Bengkulu. Students’ science process skills (SPS) (Observation, Interpretation, Hypothesize, Design an Experiment, Implementing Concept and Using tools and Materials) were measure Based on the results of the pre-test and post-test, Students majoring in Industry has n-gain score 0.41 (moderate) while the students majoring in culinary has n-gain score 0.70 (moderate). The use of manual book in learning is suitable for use as a teaching material for students because it can stimulate and improve students’ science process skills.
Pengaruh Pemberian Ekstrak Daun Salung (Psychotria viridiflora) terhadap Glukosa Darah Mencit (Mus musculus) Niki Dwi Dia Dara; Aceng Ruyani; Rendy Wikrama Wardana; Afrizal Mayub; Bhakti Karyadi
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 5 (2025): Bioedusains: Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/zj7jqp95

Abstract

This study aimed to determine the effect of salung (Psychotria viridiflora) leaf extract on blood glucose levels in hyperglycemic mice (Mus musculus). A total of 25 mice weighing 20–40 grams were divided into five treatment groups: P1 (negative control: feed and distilled water), P2 (alloxan 10 mg/kg BW + glibenclamide 0.1 mg/kg BW), P3 (alloxan 10 mg/kg BW + P. viridiflora leaf extract 0.0112 g/kg BW), P4 (alloxan 10 mg/kg BW + P. viridiflora leaf extract 0.0225 g/kg BW), and P5 (alloxan 10 mg/kg BW + P. viridiflora leaf extract 0.0337 g/kg BW). Blood glucose levels were measured four times—on days 0, 6, 12, and 18—covering baseline measurement, post-alloxan induction, and after treatment administration. The results showed that the highest dose (0.0337 g/kg BW) was the most effective in reducing blood glucose levels in alloxan-induced mice, with an effect comparable to the standard drug glibenclamide. In conclusion, P. viridiflora leaf extract has potential as an alternative herbal antidiabetic therapy in M. musculus.  Keywords: Antidiabetic, Blood Glucose, Extract Leaf, Hyperglycemia, Mus musculus, Psychotria viridiflora
Pemetaan Zona Indeks Kerentanan Seismik di Lingkungan Universitas Bengkulu Devicawati Devicawati; Bhakti Karyadi; Henny Johan; Muhammad Farid; Endang Widi Winarni
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 22, No 1 (2025): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i3.18791

Abstract

Bengkulu salah satu daerah yang beresiko tinggi terhadap ancaman bencana gempa bumi. Berdasarkan hal tersebut dilakukan upaya untuk mewujudkan kota siaga bencana, contohnya tempat evakuasi sementara. Salah satunya Universitas Bengkulu, berdasarkan observasi yang dilakukan terdapat 4 titik kumpul yang ada di lingkungan Universitas Bengkulu. Ada yang fungsional dan ada beberapa yang tidak fungsional karena belum memenuhi kriteria penentuan titik kumpul evakuasi bencana, termasuk indeks kerentanan tanah yang belum diketahui. Penelitian ini bertujuan untuk memetakan zona indeks kerentanan seismik di lingkungan Universitas Bengkulu. Pengukuran dilakukan menggunakan alat ukur mikrotremor periode pendek yang menghasilkan data mikrotremor. Analisis mikrotremor dilakukan dengan penerapan metode Horizontal To Vertical Spectrum Ratio (HVSR) menggunakan software Geopsy. Pengukuran dilakukan pada 12 stasiun pengukuran. Hasilnya menunjukkan data indeks kerentanan seismik diperoleh tiga kategori, untuk indeks kerentanan seismik kategori rendah terdapat pada stasiun pengukuran ST 2, ST 3, ST 4, ST 6, ST 7, ST 8, ST 9, ST 10, ST 11 dan ST 12 dengan rentan nilai < 3. Indeks kerentanan seismik kategori sedang terdapat pada stasiun pengukuran ST 1 dan ST 5 dengan rentan nilai 3 – 6. Pengukuran pada penelitian ini tidak terdapat stasiun pengukuran yang termasuk zona kerentanan seismik kategori tinggi, karena nilai indeks kerentanan seismik pada semua stasiun pengukuran bernilai < 6. Zona yang memiliki indeks kerentanan yang rendah dapat dijadikan sebagai titik kumpul.KATA KUNCI: gempa bumi, geopsy; indeks kerentanan seismik; mikrotremor
Teachers training in design digital-based authentic assessments to support differentiated learning in transformative school Euis Nursaadah; Aceng Ruyani; Bhakti Karyadi; Elsi Adelia Fitri
Jurnal Pembangunan Pendidikan: Fondasi dan Aplikasi Vol. 13 No. 2 (2025): December
Publisher : Graduate School, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jppfa.v13i2.83552

Abstract

Training digital-based authentic assessments is essential due to decontextualization challenges and technological advancements in learning assessment. Transformative schools require teachers to design innovative assessments supporting differentiated learning in the independent curriculum implementation, yet many face difficulties in creating assessments aligned with new learning paradigms. This study implemented the ICARE framework (Introduction, Connection, Application, Reflection, and Extend) to enhance teachers' competencies in designing digital-based authentic assessments at SMPN 02 Tebat Karai and SMPN 02 Kepahiang. Thirty teachers from various subjects with 1-20+ years of teaching experience participated in this professional development program. Data were collected through Socrative application reflection and semi-structured interviews, analyzed descriptively across three experience groups. Results showed that most teachers successfully implemented the independent curriculum and demonstrated proficiency in diagnostic, formative, and summative assessments. Observation and project assessments were most widely used during learning processes. Teachers exhibited competence with digital tools including Google Forms, Quizizz, and Socrative. Assessment preferences varied across experience groups, with performance and portfolio assessments predominating. The ICARE framework effectively developed teachers' competencies in designing digital-based authentic assessments aligned with learning objectives and differentiated learning principles. This study contributes practical frameworks for teacher professional development in authentic assessment within Indonesian transformative school contexts, providing evidence-based guidelines for enhancing assessment literacy. Future research should investigate long-term impacts on student learning outcomes and explore scalability across diverse educational settings.
Development of a Leachate Processing Practicum Module Using the 4D Model to Support Scientific Literacy in Junior High School Students Rendra Cipta; Eko Risdianto; Arsela Eko Listiono; Henny Johan; Bhakti Karyadi; Deni Parlindungan; Mehdi Manoochehrzadeh; Hamed Barjesteh
FINGER : Jurnal Ilmiah Teknologi Pendidikan Vol. 5 No. 2 (2026): Finger : Jurnal Ilmiah Teknologi Pendidikan
Publisher : CV. Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/finger.v5i2.688

Abstract

Background: The integration of environmental issues into junior high school science learning remains limited, reducing opportunities for students to develop scientific literacy through contextual, practical activities. Although science literacy-oriented modules have been developed, practicum modules that focus on converting leachate into liquid organic fertilizer as a contextual learning resource for scientific literacy are still rarely reported.Aim: This investigation sought to create and assess the practicability of a leachate-processing practicum module intended to support scientific literacy among students in junior high school. Methods: The investigation utilized a research and development methodology employing the 4D model, which encompasses the Define, Design, and Develop phases. A restricted implementation was carried out utilizing a one-group pretest–posttest framework. Validation involved four experts. Participants were Grade IX students: 27 completed the response questionnaire and 24 the scientific literacy test, reflecting attendance during the respective data collection sessions. Data were examined utilizing Aiken’s V, descriptive statistics, N-gain, and a paired-sample t-test.Results: The module demonstrated high validity with an Aiken’s V score of 0.961. Student responses exceeded 90%, indicating very positive perceptions of the module. Scientific literacy scores demonstrated an increase from a mean pretest score of 59.17 to a mean posttest score of 89.58, accompanied by an average N-gain of 0.79, which is classified within the high category. Significant differences were found between pretest and posttest scores (p < 0.001).Conclusion: The developed practicum module is feasible for use in contextual science learning and demonstrates promising effects on students’ scientific literacy in a limited implementation setting.
Potensi Kombinasi Ekstrak Daun Matoa (Pometia pinnata) dan Ektrak Daun Kelor (Moringa oleifera) sebagai Antidiabetik Pada Mencit (Mus musculus) Terinduksi Alloksan Siti Haryani Muayadah; Aceng Ruyani; Afrizal Mayub; Bhakti Karyadi; Rendy Wikrama Wardana
SPEKTRA: Jurnal Kajian Pendidikan Sains Vol. 11 No. 2 (2025): SPEKTRA: Jurnal Kajian Pendidikan Sains
Publisher : Physics Education Study Program, Faculty of Education and Teacher Training, UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/spektra.v11i2.9611

Abstract

Diabetes mellitus (DM) is a chronic metabolic disease whose prevalence continues to increase globally. Plant-based alternative therapy is becoming an increasingly popular option due to its minimal side effects. This study aims to test the potential of a combination of matoa (Pometia pinnata) and Moringa (Moringa oleifera) leaf extracts as an antidiabetic in alloxan-induced male mice (Mus musculus). The study was conducted experimentally with five treatment groups, including negative control, positive control, and three groups of extract combination doses (100, 225, and 300 mg/kg BB). Phytochemical tests showed the content of active compounds alkaloids, flavonoids, and steroids in the combination of extracts. Blood glucose level test results showed that the combination dose of 300 mg/kg BB (Dose III) was able to reduce blood glucose levels significantly and had comparable effectiveness with glibenclamide as a standard drug. Statistical analysis (One Way ANOVA and Post Hoc Bonferroni) confirmed that Dose III showed a significant difference compared to the lower dose, and was not significantly different from the positive control.Beyond these results, this study contributes new insights by highlighting the synergistic effect of combining two medicinal plants, providing a scientific basis for the development of standardized herbal formulations as potential alternatives in diabetes management.
Analisis Kandungan Asam Sianida (HCN) pada Rebung Bambu Kapal (Gigantochloa schortechinii) sebagai Bahan Makanan Roleka Julia Marcellina; Bhakti Karyadi; Rendy Wikrama Wardana; Euis Nursa’adah; Afrizal Mayub
SPEKTRA: Jurnal Kajian Pendidikan Sains Vol. 11 No. 2 (2025): SPEKTRA: Jurnal Kajian Pendidikan Sains
Publisher : Physics Education Study Program, Faculty of Education and Teacher Training, UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/spektra.v11i2.9702

Abstract

This study aims to determine the effect of different lengths of soaking on cyanide acid (HCN) content in ship bamboo shoots (Gigantochloa schortechinii) which are the main ingredient in making Lemea. Lemea is a specialty food of the Rejang tribe in Bengkulu Province where the main ingredient of Lemea is fermented chopped bamboo shoots (young bamboo). This study used a completely randomized design (CRD) with five repetitions and four treatment levels, namely. A = no treatment/control, B = 4 days soaking, C = 5 days soaking, D = 6 days soaking and E = 7 days soaking. The results of the analysis showed that different lengths of soaking time had an effect on reducing cyanide acid (HCN) content. The highest to lowest average cyanide acid (HCN) content was obtained from treatments A (70.066 ppm), B (53.759 ppm), C (42.374 ppm), D (29.739) and E (16.458 ppm). The best cyanide acid (HCN) content was obtained in the immersion treatment for 7 days with an average HCN content of 16.458 ppm, this result is highly recommended because the HCN content is safe for consumption according to FAO (Food and Agriculture Organization).
Design of Integrated Science Electronic Book Temperature and Heat Material Loaded with Ethnoscience Batik Besurek Bengkulu Dini Fajar Triana; Sutarno Sutarno; Bhakti Karyadi; Lina Mahardiani; Afrizal Mayub
Jurnal Ilmiah Pendidikan Fisika Vol 9, No 2 (2025): JUNE 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jipf.v9i2.15298

Abstract

Science learning in schools tends to be theoretical and less related to real contexts, so students have difficulty understanding the application of concepts in everyday life. One of the causes is the lack of teaching materials that integrate local wisdom. This study aims to examine the concepts of science in the local wisdom of making Batik Besurek to be developed as ethnoscience content in integrated science e-books and to determine the level of validity and student response to the product. The method used is research and development (R&D), according to Borg and Gall (1983), using the Model of Educational Reconstruction (MER) approach. Data were obtained through questionnaires, observations, and interviews. The results of the study showed that the process of making Batik Besurek contains the concepts of temperature and heat, expansion, changes in the state of matter, physical changes, heat transfer, and Black's principle, which can be integrated into the content of the Integrated Science Electronic Book. The developed electronic book obtained a very high level of validity with an average V index of 0.86 and a percent agreement of 89.27%. The students' response to the book was also excellent, with an average percentage of 89.42%. The results concluded that the Integrated Science electronic book containing the ethnoscience of Batik Besurek Bengkulu was considered valid teaching material worthy of being tested for effectiveness in future research.
Potensi Biomassa Pohon dan Emisi Karbondioksida Untuk Menilai Keseimbangan Karbon di Lingkungan Endah Tri Wahyuningsih; Bhakti Karyadi; Rendy Wikrama Wardana; Euis Nursa’adah; Afrizal Mayub
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): 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.v13i4.16620

Abstract

This study aims to analyze carbon emissions from motor vehicles and the potential for carbon absorption by vegetation on four main roads in Bengkulu City: Padang Jati, Hibrida, Pagar Dewa, and Sukarami. The approach used is quantitative-descriptive, with data collected through traffic surveys and direct measurements of vegetation parameters during the observation period. Emissions are calculated using emission factors based on IPCC/KLHK standards according to vehicle type, while tree biomass is analyzed using allometric equations based on trunk diameter, track length, and vegetation type. Carbon analysis on four roads in Bengkulu City shows a significant imbalance between vehicle emissions and vegetation absorption. Sukarami recorded the highest emissions (751,813 kg CO₂) with a biomass of only 24,053 kg (absorption of 40,607 kg), making it a carbon source. Conversely, Padang Jati had the largest biomass (881,578 kg) compared to emissions of 431,889 kg CO₂, making it a carbon sink with absorption of 344%. Hibrida and Pagar Dewa showed intermediate conditions, with emissions of 424,145–570,063 kg CO₂ and absorption of 544,349–947 kg, indicating an unbalanced absorption capacity. These results emphasize the need to increase vegetation cover and manage green spaces as strategies for mitigating urban climate change.
Studi Fase Pertumbuhan dan Perkembangan Tanaman Lotus (Nelumbo nucifera) pada Ekosistem Buatan Kolam Sains Universitas Bengkulu Anton Panjaitan; Deni Parlindungan; M Sutarno; Bhakti Karyadi; Septi Kurniasih
Agroteknika Vol 8 No 4 (2025): Desember 2025
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v8i4.536

Abstract

Lotus adalah tanaman air yang memiliki habitat alami di rawa atau tempat berlumpur. Pertumbuhan dan perkembangan lotus perlu dikaji lebih dalam untuk mempermudah proses budidaya. Budidaya lotus di bengkulu masih terbilang minim, meskipun di beberapa daerah sudah ada hanya dijadikan sebagai tanaman hias. Penelitian ini bertujuan untuk mengetahui pertumbuhan dan perkembangan lotus di kolam sains Universitas Bengkulu. Pengamatan dilakukan pada 4 stasiun penelitian dengan variasi ketinggian air dan lumpur yang berbeda. Parameter pertumbuhan lotus yang diamati adalah pertumbuhan biji (pertumbuhan tunas, jumlah tunas, jumlah daun, jumlah akar dan panjang akar), pertumbuhan bibit (jumlah daun, diameter daun, jumlah rimpang dan perbandingan pertumbuhan daun melayang dan daun koin), dan pemanenan (pertumbuhan bunga dan biji yang dihasilkan) dan dianalisis secara deskriptif kualitatif. Hasil penelitian menunjukkan bahwa pertumbuhan bibit lebih maksimal dari biji yang memiliki ciri dengan bentuk membulat sempurna, tidak kisut dan tidak berjamur. Lokasi terbaik untuk pertumbuhan dan perkembangan lotus yaitu pada plot 2 dilihat dari laju pertumbuhan yang lebih cepat dibandingkan plot 1, plot 3 dan plot 4 dengan Parameter pertumbuhan pada plot 2 memiliki rata-rata diameter daun 66,3 mm, jumlah daun 5 helai, diameter tangkai daun 2 mm, dan jumlah rimpang 5 ruas. Jumlah biji yang dihasilkan memiliki rata-rata 28 terdiri dari 19 biji fertil dan 9 biji infertil. Pertumbuhan dan perkembangan tanaman lotus di kolam sains lebih maksimal dengan ciri lokasi yaitu kedalaman lumpur 62 cm dan kedalaman air 21 cm. Bunga lotus lebih banyak menghasilkan biji fertil dibandingkan dengan biji infertil yang menunjukkan tingkat keberhasilan penyerbukan tinggi.
Co-Authors Abdul Rahman Singkam ACENG RUYANI Adib Syuja Dewa Afrizal Mayub Alif Yanuar Zukmadini Amalia Lestari Anak Agung Istri Sri Wiadnyani Angelina br Sebayang Annida Nurul Shabrina Annisa Novianti, Annisa Anton Panjaitan Ariefa Primair Yani Ariefa Primair Yani Ariefa Primair Yani Ariefa Primairyani Arsela Eko Listiono Aswin, Pani Berto Usman Budiyanto Budiyanto Cut Kandy Safiera Defianti, Aprina Deni Parlindungan Deni Parlindungan Desi Enersy Devicawati Devicawati Dewi Jumiarni Dini Dwi Lestari Dini Fajar Triana Ekaputri, Rendi Zulni Eko Risdianto Elsi Adelia Fitri Endang Widi Winarni Erik Perdana Putra Euis Nursa’adah Febriantika Putri Pangesti Fitra Youpika Fitri Mulyani* Hamed Barjesteh Henny Johan Hery Suhartoyo Ika Saputri Indah Maryani Indra Sakti Irwandi Ansori Irwandi Ansori Iwan Setiawan Jesy Afriza Putri Kasrina Kasrina Khairunnisa Khairunnisa Khairunnisa Lasriani Lasriani Lilis Alifah Lina Mahardiani M Sutarno M. Sutarno Mehdi Manoochehrzadeh Mellyta Uliyandari Mellyta Uliyandari Uliyandari Muhammad Farid Nadia Fitria Wulandari Neni Murniati Nike Anggraini Niki Dwi Dia Dara Nirwana Nirwana Nur Alliyah Irsal Nur Wakidatul Khasanah Nursaadah, Euis Pegi Gustari Presilia Aditya Perta Rahma Febriana Pratiwi Rendra Cipta Rendy Wikrama Wardana Repani Anggraini Reti Novianti Roleka Julia Marcellina Sausan Fatin Nurazizah Septi Kurniasih Sipriyadi Siti Haryani Muayadah Sutarno Sutarno Syaiful Rochman Ulvia Fitriani Untung Priadi Urip Santoso Wahyuningsih, Endah Tri Widia Gusti Winarko Winarko Winda Zulistia Yuli Febrianti