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All Journal IAES International Journal of Robotics and Automation (IJRA) Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Perikanan dan Kelautan Jurnal Biologi Udayana Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati JTSL (Jurnal Tanah dan Sumberdaya Lahan) Journal of Biomedicine and Translational Research Proceeding International Conference on Global Resource Conservation Journal of Mathematical and Fundamental Sciences SEMIRATA 2015 Prosiding Seminar Biologi Jurnal Tadris Kimiya JURNAL FARMASI DAN ILMU KEFARMASIAN INDONESIA BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Acta Aquatica: Aquatic Sciences Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Chimica et Natura Acta BIOEDUKASI BIOEDUSCIENCE Jurnal Ilmu Nutrisi dan Teknologi Pakan PENDIPA Journal of Science Education Diklabio: Jurnal Pendidikan dan Pembelajaran Biologi THABIEA (JOURNAL OF NATURAL SCIENCE TEACHING) BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains Riau Journal of Empowerment Jurnal Biosilampari: Jurnal Biologi Biota JPBIO (Jurnal Pendidikan Biologi) JURNAL FARMASIMED (JFM) Human Care Journal Abdimas Universal ULIN: Jurnal Hutan Tropis Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Agrinimal Jurnal Ilmu Ternak dan Tanaman Bioscientist : Jurnal Ilmiah Biologi Jurnal Kedokteran Raflesia Jurnal Inovasi Pengabdian Masyarakat Pendidikan DIKSAINS : Jurnal Ilmiah Pendidikan Sains JURNAL HUTAN TROPIS Aktual : Jurnal Pengabdian Kepada Masyarakat Jurnal Biosilampari: Jurnal Biologi IJIS Edu : Indonesian Journal of Integrated Science Education
ACENG RUYANI
UNIVERSITAS BENGKULU
Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Theory Of Relativity For GPS And Its Application In Determining The Geographical Location Of Students' Address Amin, Ahmad; Yuneti, Armi; Ruyani, Aceng
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12569

Abstract

This study aims to determine the working principle of the Global Positioning System (GPS) as a technology that applies the concept of relativity, and its application to determine the geographic location of students' addresses. This type of research is a literature study. In general, the GPS system has three main components, namely the ground segment (control station), the space segment (satellite), and the user segment (receiver device). GPS determines the receiver's position using the trilateration method from a minimum of four satellites that are always visible from any point on Earth at any time. The results of the study state that information from three satellites is needed to determine location, while the fourth signal is needed to determine time accurately. Relativity causes the GPS system to experience a time lag. The relative motion of the satellite to the earth causes the time on the satellite to be slower than earth time, while earth's gravity makes the satellite time move faster than earth time. The novelty of the results and discussion of the study conducted is to find the coordinates of student addresses, thus facilitating mapping of student residences in the city of Lubuklingau and its surroundings.
Pemberian Jus Buah (Etlingera hemisphaerica) terhadap Pemulihan Eritrosit dan Leukosit Akibat Perlakuan Merkuri Klorida (HgCl2) pada Mencit (Mus musculus) Azzahrah, Fatimah; Ruyani, Aceng; Parlindungan, Deni; Listiono, Arsela Eko; Mayub, Afrizal
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: 10.31539/7ef7hb33

Abstract

This study aims to determine the effect of Etlingera hemisphaerica (honje) fruit juice on the recovery of erythrocyte and leukocyte counts in mice (Mus musculus) exposed to mercuric chloride (HgCl₂). The method used was an experimental design using male mice as test animals, divided into three groups: K1 (control), K2 (honje juice 0.3 mL/20 g BW for 3 days), and K3 (HgCl₂ 5 mg/kg BW + honje juice 0.3 mL/20 g BW for 3 days). The observed parameters were the number of erythrocytes and leukocytes before and after treatment. The results showed that honje juice administration increased the erythrocyte count in group K2, while in group K3, erythrocyte recovery was affected by mercury exposure, making the honje juice less effective, although the values remained within the normal range compared to the control group. In leukocyte count, group K2 showed a stabilizing effect, whereas group K3 experienced an increase due to HgCl₂ exposure. In conclusion, Etlingera hemisphaerica fruit juice has potential as a phytotherapy agent to repair hematological damage caused by heavy metal toxicity, although its effectiveness is influenced by the metabolic condition of the mice and the high concentration of mercury. Keywords: Etlingera hemisphaerica, Erythrocytes, Leukocytes, Mice, Mercuric Chloride
Kepayang (Pangium edule Reinw), PENGARUH PEMBERIAN EKSTRAK PROTEIN TOTAL KOTILEDON BIJI KEPAYANG (Pangium edule Reinw) TERHADAP PENGGUMPALAN SPERMATOZOA SAPI ( Bos taurus ) Sitorus, Lizken; Haryanto, Hery; Ruyani, Aceng
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.887-896

Abstract

The effect of administering total cotyledon protein extract from kepayang seeds (Pangium edule Reinw) on cow spermatozoa (Bos taurus) was conducted from March - April 2015, in the Basic Science laboratory of biology, FMIPA UNIB and the biology garden of FKIP UNIB. The purpose of this study was to explain the effect of administering total cotyledon protein extract from kepayang seeds on the agglomeration of cow spermatozoa. The steps of this study were the total cotyledon protein of kepayang seeds extracted, protein precipitation, determination of total cotyledon protein content of kepayang seeds (P. edule), and treatment of cow spermatozoa agglomeration. The analysis used was ANOVA with 10 treatments and 3 repetitions. Based on the results of data analysis, the sediment at 50% ammonium sulfate gave an average coagulation time of bovine spermatozoa of 132 seconds with a total protein content of 56.15 mg/mL.
Kuntze Metabolite Profile and Antioxidant Activity of Vincetoxicum villosum (Blume) Kuntze Sari, Anjeli Rama; Ruyani, Aceng; Ismaini, Lily; Hartuti, Endah Dwi
Chimica et Natura Acta Vol 13, No 3 (2025)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v13.n3.60012

Abstract

Vincetoxicum villosum belongs to the Apocynaceae family. V. villosum is often used as a traditional medicine for treating jaundice, gallstones, kidney stones, hepatitis B, and liver diseases. This study aims to determine the metabolite profile and antioxidant activity of V. villosum to provide new information and serve as a reference for its safe use as a medicinal plant. The methods used to determine the metabolite profile involved GC-MS, and antioxidant activity was assessed using the DPPH method. GC-MS analysis showed that V. villosum leaf extract contains n-hexadecanoic acid, phytol, 9,12,15-octadecatrienoic acid (Z,Z,Z)-, and 2,4-di-tert-butylphenol which have potential antioxidant activity. The antioxidant activity in V. villosum leaves is classified as very weak, with  IC50 ranging 0.6 – 1.6 mg/mL, with the best antioxidant activity observed in polar solvents (ethanol extract) with a maceration time of 72 hours. The highest total phenol content was obtained using ethanol solvent with a maceration time of 72 hours, amounting to 416.17 mg GAE/g, and the highest total flavonoid content was obtained using ethyl acetate solvent with a maceration time of 24 hours, amounting to 168.78 mg QE/g
Study of dogania subplana aclimatization in the turtle learning center university of bengkulu Marliansa, Meiredo; Karyadi, Bhakti; Parlindungan, Deni; Ruyani, Aceng; Nursa'adah, 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.v10i2.4953

Abstract

The forest softshell turtle (Dogania subplana) is a species increasingly threatened by habitat destruction and overexploitation. This study aims to identify the acclimatization process of D. subplana in an artificial environment, specifically, an aquarium at the Turtle Learning Center (TLC). The research was conducted over 30 days from July to August 2024. Observations were made on daily behavior, body temperature, and health condition, individual biometric measurements, and environmental (abiotic) parameters. The results showed that daily behaviors such as feeding, basking, and hiding occurred regularly, indicating the species' ability to adapt to a new environment. The turtles experienced an increase in body weight, while growth in carapace length and width was very slow. The body temperature of D. subplana varied in accordance with the surrounding environmental temperature, reflecting its dependence on ambient conditions. Some individuals experienced minor health issues, such as fungal infections, but the majority remained active and healthy. Environmental factors such as temperature, humidity, pH, dissolved oxygen, total dissolved solids, and light intensity were within ranges conducive to acclimatization. These findings suggest that the aquarium at the TLC is quite effective as an ex situ conservation facility in supporting the adaptation process of D. subplana  outside its natural habitat.
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.
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.
Local Potential of Kabau (Archidendron bubalinum (Jack) I.C Nielsen): A Comprehensive Literature of Traditional Uses, Phytochemistry, Pharmacology and Learning Resources Potential Erik Perdana Putra; Aceng Ruyani; Fitri April Yanti
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 6, No 2 (2024): July 2024
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v6i2.10075

Abstract

Kabau (Archidendron bubalinum (Jack) I.C. Nielsen) is a lesser-known legume native to Sumatra and surrounding regions that is widely used as food and traditional medicine, but its scientific and educational potential remains underexplored. This study presents a qualitative–descriptive literature review synthesizing ethnobotanical, phytochemical, pharmacological, and educational evidence on kabau, based on peer-reviewed national and international publications indexed in databases such as Scopus, PubMed, SpringerLink, Wiley Online Library, and Google Scholar. The review shows that kabau seeds and fruit pods contain diverse secondary metabolites, dominated by phenolics, flavonoids, terpenoids, fatty acids (e.g., linoleic and palmitic acids), and sulfur-containing amino acids related to djenkolic acid. These constituents underpin strong in vitro antioxidant activity and support preliminary evidence of antidiabetic, anti-hyperuricemic, and antimicrobial effects in enzyme-based assays and animal models. Ethnobotanical data from Bengkulu and other regions document kabau as a functional food, a remedy for metabolic and digestive disorders, and a component of local cultural identity. Drawing on this evidence, the article proposes a framework for integrating kabau into biology education as a contextual learning resource across topics such as plant morphology, ecology, ethnobotany, phytochemistry, health, and STEM-based inquiry. Integrating local biological resources like kabau is argued to promote scientific literacy, critical thinking, and sustainability awareness while strengthening students’ appreciation of local biodiversity. Further field, experimental, and design-based research is needed to standardize kabau-derived products and to evaluate their effectiveness and safety, as well as their impact on learning outcomes in science education.
Co-Authors Abas Abas, Abas Abdul Rahman Abdul Rahman Singkam Afrizal Mayub Afrizal Mayub Amin, Ahmad Ananda, Resti Annisa Puji Astuti Annisa Puji Astuti Ariefa Primair Yani Ariefa Primair Yani Arsela Eko Listiono ASTUTI, ANNISA PUJI Athika Ulfah Putri Badeni Bambang Prayogo, Bambang Bella, Anisa BHAKTI KARYADI BHAKTI KARYADI Bhakti Karyadi Bhakti Karyadi Budi Maryani Budiyanto Budiyanto Budiyanto Budiyanto Cally Piramida, Cally CHOIRUL MUSLIM CHOIRUL MUSLIM Choirul Muslim Cut Kandy Safiera Davina Shava Ferlia Defianti, Aprina Deka Agustina Delviastri Widyana Deni Parlindungan Deni Parlindungan Deni Parlindungan Dewi , Deshinta Arrova Dewi, Novi Ratna Diah Suprihatin Dwi Dia Dara, Niki Dwi Mentari Dwita, Uci Rahma Elsi Adelia Fitri Elvida Sari Yunilarosi Endang Widi Winarni Enny Nugraheni Eria Irmawati Erik Perdana Putra Erna Yunita Sari Fahmizal, Fahmizal Fannyda, Raidatul Fatimah Azzahrah Febrian, Intan Fema Anggriani Fitri April Yanti Fitri April Yanti, Fitri April Ginting, Nesty Apulina Br Hardiansyah, Akbari Harlita Hartuti, Endah Dwi Haryono, M. Henny Johan Henny Johan Heriwati Heriwati Herlina Herlina HERNANI - HERRY HARYANTO Hery Haryanto Hery Suhartoyo Hery Suhartoyo Hery Suhartoyo Heryensi, Elza Hilda Taurina Husein, Ahmad Saddam ICE PURNAMAWATI Iman Rusmana Indah Maryani Irwan Koto, Irwan Irwandi Ansori Irwandi Ansori Iskandar, Aiza Sabina Putri Isytigfarini, Anisah Putri Jabidi Jabidi Julianti, Apri Julita Pasaribu Jumiarni, Dewi Kartika Sari Kasrina Kasrina Khairunnisa Kurniani, Riska Lazfihma, Lazfihma Leditiya Lestari Lia Anggraini Lien A. Sutasurya Lily Ismaini Lingga, Rahmad Liya Agustin Umar M. Lutfi Firdaus, M. Lutfi Marisadonna Asteria Marliansa, Meiredo Maryani, Budi Mayshah Purnamasari Mayub, Afrizal MUSNI MARNIS NADYA NADYA Naintyn Novitasari, Naintyn Nurcahyani Nurhamidah Nurleli Nurleli Nurma Yunita Indriyanti Nursa'adah, Euis Nursaadah, Euis Nursa’adah, Euis Nur’azizah Prihatiningsih Palindungan, Deni Parlindungan, Deni Primair Yani, Ariefa Purnama, Intan Putri, Zakyya Septiana R. R. Sri Astuti Rahyuni Rahyuni Rani, Silvia Reka Susanti Rendy Wikrama Wardana Rendy Wirakrama Rica Yuniar Tanjung Rika Partika Sari Roni Sastiawan Safniyeti Safniyeti Santi Nurul Kamilah Saputra, Fajar Eko Sari, Anjeli Rama Sari, Fenty Fitrian Sari, Gina Aprella Sari, Intan Indah Sari, Nurma Yunita Selpiya, Mega Shabrina, Annida Nurul Sherlo Maulana Sipriyadi Siti Habiburrahmah Ash Shadar Sitorus, Lizken Sonia, Gina Sri Sudarwati Sukarso, A. A. Sukarso, A.A. Sumiyati - Sumpono Sumpono Sutarno Sutarno Sutarno Sutarno Sutarno, M. Sylvia Rianissa Putri Tendri Ayu Putri Tomi Hidayat, Tomi Trisna, Dwi Martha Uliyandari, Mellyta Untung Priadi Urip Santoso Wahyuni, Reza Wardana, Rendy Wikrama Wibowo, Risky Hadi Widia Gusti Wikrama Wardana, Rendy Wiryono Wiryono Wiryono, Wiryono Wulandari, Cessi Yennita Yulinda Fitriani Yuneti, Armi Yunita Arianti Zamzaili Zamzaili Zamzaili Zamzaili Zico Fakhrur Rozi