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Rahmadina, Rahmadina
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Pengaruh Kombinasi Pestisida Nabati Terhadap Serangan Hama Thrips Pada Pertumbuhan Vegetatif Tanaman Kacang Hijau (_Vigna radiata_ L.) Lubis, Wisuda Pramarta; Idris, M.; Rahmadina, Rahmadina
BEST Journal (Biology Education, Sains and Technology) Vol 7, No 1 (2024): Juni 2024
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v7i1.8530

Abstract

Produktivitas kacang hijau menurut data BPS Sumatera Utara tahun 2021 sejak tahun 2019 hingga 2021 mengalami penurunan yaitu dengan rata-rata 2,52%. Penyebab menurunnya produktivitas kacang hijau salah satunya adalah terjadinya serangan hama thrips. Salah satu alternatif yang dapat dilakukan untuk mengatasai serangan hama thrips adalah menggunakan pestisida nabati. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pestisida nabati kombinasi serai dan kenikir terhadap hama thrips pada pertumbuhan vegetatif tanaman kacang hijau serta untuk mengetahui konsentrasi paling efektif dari penggunaan pestisida nabati. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) Non Faktorial, yaitu konsentrasi (P0 = kontrol ; P1 = 100 ml ekstrak serai dan kenikir/L air; P2 = 200 ml ekstrak serai dan kenikir/L air; P3 = 300 ml ekstrak serai dan kenikir/L air). Hasil penelitian menunjukkan bahwa perlakuan P3(300 ml/L) berpengaruh sangat nyata pada intensitas serangan sebesar 14,91%, persentase serangan sebesar 25,35% dan indeks luas daun sebesar 0,46cm. Adapun pada setiap perlakuan P0,P1,P2,P3 tidak berpengaruh nyata pada tinggi tanaman dan kadar klorofil daun.
PENERAPAN BIMBINGAN BELAJAR PADA SISWA SEKOLAH DASAR DI MIS AL-IHSAN PEMATANG PANJANG Fatmawati; Elen Agustina; Alfiani Sekar Melati; Herry Sutarto Ladjang; Nauva Adila; R. Septian Angga Saputra; Rahmadina, Rahmadina; Raihanah Abiyah Julia Lavenita; Saman Abdurrahman
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 4 No. 7: Desember 2024
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penerapan bimbingan belajar di sekolah dasar telah menjadi solusi penting dalam meningkatkan pemahaman siswa terhadap pelajaran, terutama pada mata pelajaran matematika yang sering dianggap sulit oleh siswa. Program Bergembira dengan Matematika (BERGEMA) dilaksanakan di MIS Al-Ihsan Pematang Panjang oleh tim KKN MBKM FMIPA ULM sebagai bentuk kontribusi untuk membantu siswa yang kesulitan dalam memahami materi matematika. Program ini dilakukan di luar jam pelajaran sekolah dengan metode yang interaktif dan menyenangkan. Hasil dari kegiatan ini menunjukkan peningkatan partisipasi siswa dan perbaikan pemahaman mereka terhadap materi. Berdasarkan data, jumlah peserta terus meningkat dari minggu pertama hingga minggu ketiga. Hal ini menunjukkan bahwa bimbingan belajar memberikan dampak positif bagi siswa, baik dari segi motivasi belajar maupun hasil akademis.
UTILIZATION OF KECOMBRANG FRUIT PEEL (Etlingera elatior (Jack) RMSm) AS A MOUTHWASH TO PREVENT MOUTH ULCERS AND DENTAL CARIES Rahmadina, Rahmadina; Mayasari, Ulfayani
Jurnal Bioteknologi dan Biosains Indonesia Vol. 11 No. 2 (2024)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jbbi.11.2.8591

Abstract

Kecombrang fruit is used by the community as a food ingredient but actually the skin of this kecombrang fruit can be used as a mouthwash for the development of dental caries. This study aims to evaluate the preparation of mouthwash formulations with the addition of kecombrang fruit peel extract. The work procedure starts from extraction, phytochemical testing, antimicrobial testing of extracts, and evaluation of mouthwash preparations. The results contained secondary metabolites in the form of alkaloids, fla-vonoids, tannins, and saponins. Evaluation of mouthwash preparation with pH test is 5.0-5.6, organoleptic test which does not change significantly, viscosity test at 20% and 30% concentration is 1.0193 cP and 1.0061 cP, and antimicrobial test with inhibi-tion diameter on Streptococcus mutans and Candida albicans is 11.3 mm and 11.1 mm. In conclusion, mouthwash with added extracts can inhibit the growth of microbes that cause mouth ulcers and tooth decay.
Pengembangan E-LKPD Berbasis Problem Based Learning pada Materi Sistem Pernapasan Manusia untuk Meningkatkan Pola Berpikir Kritis Siswa SMA Negeri 5 Kota Tanjung Balai Arya, M.; Rahmadina, Rahmadina
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 2 (2024): 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.v12i2.13959

Abstract

Learning is a system consisting of several interrelated components (goals, materials, methods, learning evaluation). These components must be adjusted in the process of making a learning implementation plan. Students are guided to build their knowledge independently so that they can easily master the material obtained at school and then apply their knowledge in real life.  This research aims to develop an Electronic Student Worksheet (E-LKPD) based on Problem Based Learning (PBL) on the human respiratory system, with a focus on improving students' critical thinking patterns at SMA Negeri 5 Tanjung Balai City. The method used in this research is the 4-D model developed by Thiagarajan, which consists of four stages: Define, Design, Develop, and Dissemination. The research results showed that the developed E-LKPD received a very good feasibility assessment, with a percentage of 96.8% from material experts, 96.25% from media experts, and 96.6% from practitioner experts. From these results, it can be concluded that the PBL-based E-LKPD developed is valid, practical and effective for use in the learning process. It is hoped that this e-LKPD can increase student learning activities and help teachers convey material in a more interesting and interactive way.
Pengembangan Ensiklopedia Materi Vertebrata Kelas X SMA/MA sebagai Media Pembelajaran Hutagalung, Prycila Anggi Prasetia; Rahmadina, Rahmadina
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 8 No 1 (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/bioedusains.v8i1.14212

Abstract

This study aims to develop a valid encyclopedia of vertebrate biodiversity and to receive positive responses from students and teachers at SMA Swasta Gajah Mada Medan. The research method used is Research and Development (R&D) with the Borg & Gall development model, which consists of 10 stages. The results show that media experts rated this product at 90%, categorized as "Highly valid." Material experts provided a rating of 93.75%, also categorized as "Highly valid." A limited product trial involving 20 students from class X MIA resulted in an N-Gain score of 0.65, classified as moderate. In a large-scale field trial, an N-Gain score of 0.61 was obtained, also classified as moderate. In conclusion, the vertebrate material encyclopedia is valid and suitable for use by students as a learning resource, as it has received positive evaluations. Keywords: Biology, Encyclopedia, Media, Development, Vertebrates.
PEMANFAATAN TEKNOLOGI SPEECH RECOGNITION UNTUK MELATIH KETERAMPILAN BERBICARA BAHASA ARAB SISWA MAN 2 PAYAKUMBUH Rudiamon, Septika; Rahmadina, Rahmadina
Al-Fakkaar Vol 6 No 1 (2025): Februari
Publisher : Program Studi Pendidikan Bahasa Arab Unisda Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52166/alf.v6i1.8427

Abstract

This study aims to describe the extent to which the use of speech recognition technology to train Arabic speaking skills of class X and class XI students of MAN 2 Payakumbuh. This study uses a quantitative approach with a descriptive type. The subjects of this study were all students of MAN 2 Payakumbuh who had difficulty speaking Arabic. The objects of this study were students of class X and class XI MAN 2 Payakumbuh who had trouble speaking Arabic. Data were collected through field observations, filling out questionnaires, collecting questionnaires via Google Forms, and other related documents. The data collected were processed using SPSS and the ANOVA test. The results of this study indicate that the use of speech recognition technology to train Arabic speaking skills has great potential in improving the communication of class X and class XI students of MAN 2 Payakumbuh. With this technology, students can train their Arabic speaking skills to be better because speech recognition technology can analyze specific weaknesses in speaking, and provide training that focuses on certain areas. Through instant application responses and regular practice, students' Arabic speaking skills can be improved to be more active and effective.
Hubungan Kadar Enzim Transaminase Pasien COVID-19 dengan Derajat Keparahan Penyakit di RSUP Dr. M. Djamil Padang Rahmadina, Rahmadina; Herman, Deddy; Efrida, Efrida; Almurdi, Almurdi; Russilawati, Russilawati; Elvira, Dwitya
Andalas Journal of Health Vol. 13 No. 1 (2024): March 2024
Publisher : Faculty of Medicine, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jka.v13i1.2205

Abstract

Liver injury can be caused by coronavirus disease 2019 (COVID-19), characterized by increased levels of transaminase enzymes (aspartate aminotransferase/AST and alanine aminotransferase/ALT). Objective: To determined the correlation between transaminase enzyme levels and the severity of COVID-19 in Dr. M. Djamil Central Public Hospital, Padang. Methods: This was an observational analytic study with a cross-sectional design. Data were obtained randomly from medical records of confirmed COVID-19 patients hospitalized in Dr. M. Djamil Hospital from June to August 2021, with moderate, severe, and critical severity based on Indonesian Ministry of Health criteria. Data were analyzed using the Chi-square test to examine the distribution and correlation between variables and a simple logistic regression test to assess the level of risk between variables. Results: 57,80% had abnormal AST, and 44,95% had abnormal ALT. The median AST was highest in the critical group, while the median ALT was highest in the severe group. The distribution of sex and age group were significantly different based on AST and ALT levels, and the distribution of patients with coronary heart disease was significantly different based on ALT levels. Transaminase enzyme levels had a significant correlation with the severity of COVID-19 (p-value = 0,00). Patients with critical degrees had the highest risk for abnormal AST and severe degrees had the highest risk for abnormal ALT. Conclusion: Transaminase enzymes have a significant correlation with the severity of COVID-19.Keywords:  COVID-19, liver injury, transaminases, disease severity
KEANEKARAGAMAN JENIS TUMBUHAN PAKU (PTERIDOPHYTA) BERDASARKAN VARIASI KETINGGIAN DI KAWASAN HUTAN SIBAYAK II SUMATERA UTARA Rosmadani, Wiwid; Hutasuhut, Melfa Aisyah; Rahmadina, Rahmadina
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 6 No 4 (2024): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2024.6.4.12554

Abstract

Tumbuhan paku merupakan tumbuhan rendah berpembluh yang sangat banyak ditemukan di Hutan Sibayak II Sumatra Utara, tetapi keanekaragamannya masih belum terdata dengan baik, sehingga perlu dilakukan penelitian secara lebih rinci. Penelitian ini bertujuan untuk mengetahui jenis – jenis tumbuhan paku (Pteridophyta), Indeks keanekaragaman dan kelimpahan jenis pakis Pteridophyta di Hutan Sibayak II, Sumatera Utara. Penelitian ini menggunakan teknik kuadrat dengan 15 plot dan 3 transek. Temuan penelitian menunjukkan bahwa 32 spesies pakis berbeda telah ditemukan, termasuk Cyathea contaminans (Wall. Ex Hook.) Copel., Nepherolepis diksonioides Christ, Diplazium dilatatum Blume, Goniophlebium percussum (Cav.) Wagner & Grether, Christella subpubescens (Blume) Holttum, Vittaria ensiformis Sw., Humata repens (L.f.) J. small ex Dieis, Pyrrosia lingua (Thunb.) Farw, Asplenium nidus L., Ctenopteris mollicoma (Nees & Blume) Kunze, Angiopteris arborescens (Blanco) Merr., Diplazium poliferum (Lam.) Kaulf., Lindsaeaa lucida Blume, Lepisorus spicatus (L.f.) Li Wang, Selaginella intermedia (Blume) Spring, Asplenium caudatum G.Forst., Asplenium nitidum Sw., Cyathea contaminans (Wall. Ex Hook.)Copel., Allantodia sorgonensis (C.Presl) Ching, Tectaria incisa Cav., Allantodia lobulosa (Wall. Ex Mett.) Ching, Asplenium Bantamense (Blume) Baker, Lycopodiella cernua (L.) Pie.Serm, Pteridium arachnoideum (Kaulf.)Maxon, Dicranopteris sp., Davallia divaricate Blume, Histiopteris incisa (Thunb.) J. Sm., dan Dicranopteris lincaris (Burm.f.) Underw, Indeks keanekaragaman tumbuhan paku pada 3 variasi ketinggian 1300-1500, 1500-1700, dan 1700-1800 yaitu sebesar 2.28, 2.70 dan 2.39 adalah tergolong kategori sedang dan Kelimpahan tumbuhan paku (Pteridophyta) pada 3 variasi ketinggian yaitu pada tumbuhan Davallia divaricate Blume sebesar 24.55 dengan 136 individu.
The Influence of PSB Application on the Growth of Aloe vera in a Verticulture Cultivation System Handayani, Tri Suci; Rahmadina, Rahmadina; Selvia, Irda Nila
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9538

Abstract

Aloe vera is a tropical plant with significant potential to develop into a promising agricultural sector in Indonesia. To achieve high-quality Aloe vera harvests, it is important to pay attention to several growth conditions, especially plant care such as fertilization. This study aims to determine the effect of Photosynthetic Bacteria (PSB) fertilizer application and the effective dosage of PSB fertilizer for the growth of Aloe vera using vertical farming techniques. This research used a Non-Factorial Randomized Block Design (RBD), with treatment factors including: no application of PSB fertilizer (P0), PSB 5 ml/l (P1), PSB 15 ml/l (P2), and PSB 30 ml/l (P3). The research involved several stages of observation, including plant height, number of leaves, leaf width, leaf thickness, and root volume. The observed data were analyzed using ANOVA with the help of SPSS 26. If the ANOVA test showed a significant effect, further analysis was carried out using Duncan's Multiple Range Test (DMRT). The results showed that the application of PSB fertilizer had an effect on plant height (22.8 cm), leaf width (2.76 cm), number of leaves (7 leaves), leaf thickness (8.91 cm), and root volume (4 cm³). The best average treatment result for Aloe vera growth was obtained at a dosage of 15 ml/l (P2), indicating that Photosynthetic Bacteria (PSB) fertilizer at a dosage of 15 ml/l (P2) was sufficient to supply the necessary nutrients for the growth of Aloe vera.
Analisis mengenai dampak lingkungan (AMDAL) sebagai upaya pencegahan pencemaran dan kerusakan terhadap lingkungan Rahmadina, Rahmadina
e-Jurnal Ekonomi Sumberdaya dan Lingkungan Vol. 14 No. 1 (2025): e-Jurnal Ekonomi Sumberdaya dan Lingkungan
Publisher : Konsentrasi Ekonomi Sumberdaya Alam dan Manusia, Prodi Ekonomi Pembangunan, Fakultas Ekonomi dan Bisnis, Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jesl.v14i1.35517

Abstract

This research discusses environmental impact analysis (AMDAL) as an effort to prevent pollution and damage to the environment. Environmental problems are an undeniable issue both in Indonesia and in the world. Technological developments, the industrial world and population growth have an influence on environmental problems that affect the carrying capacity and capacity of the environment. Activities that have potential to damage the environment must require permits so that activities do not threaten the environment. This research aims to determine AMDAL as an effort to prevent pollution and damage to the environment. This type of research is a library method or library research, which is a form of activity relating to methods of collecting library data, reading and taking notes and processing research materials whether sourced from books, journals or statutory regulations.
Co-Authors Ahmad Abdullah Alfiani Sekar Melati Alfira, Della Almurdi Almurdi Anggraini, Tri Vanesa Anriani, Epa Aprilia, Tiara Arifin, Abin Riyan Arya, M. Ashari, Maya Audi, Fanya Audina, Nida Ayu Puspita Azhari, Raisa Br Tarigan, Rindi Atika Chaniago, Yuyun Amalia Dwi Anggraini Dwitya Elvira, Dwitya Efrida Efrida, Efrida Elen Agustina Faisal, Agung Fanadillah, Yurike Fatih, Muhammad Imam Fatmawati Fatmawati Febriansyah Febriansyah Ginung Pratidina Haholongan, Rutinias Harahap, Jihan Nur Alifia Harahap, Uswatun Hasanah Hardiansyah, Elan Hasanah, Nurul Fizah Hasibuan, Dinda Lestari Hasibuan, Telni Rusmi Tantri Hasriana, Eli Hasyifa, Najwa Herawati, Putri Amelia Herman, Deddy Herry Sutarto Ladjang Hidayani, Sri Husnarika Febriani, Husnarika Hutagalung, Prycila Anggi Prasetia Hutasuhut, Melfa Aisyah Ikraami , Reksa Dzul Ilmi, Lu’lu’ Irda Nila Selvia Khairani, Aulia A'yun Khairani, Dwi Khairuna Khairuna Lestari, Anggie Septia Lestari, Sri Murni Ayu Lubis, Annisa Lubis, M Azhar Lubis, Wisuda Pramarta M. Idris Manalu, Kartika Masniladevi, Masniladevi Mawarni, Devi Mayasari, Ulfayani Muhammad Aji Nugroho Muhammad Idris Munthe, Yuli Agustinah Nasution, Aulia Mahira Nauva Adila Nelvia, Repi Nisa, Dea Fahrum Nugroho, Muhammad Agung Nurhazizah, Refina Pulungan, Adrian Azhari Puspita, Siti Neni Putri, Annisyah Tri R. Septian Angga Saputra Rahma, Fazira Rahma, Nadia Rahmadhina, Jestiana Al Kayrani Rahman, Febrian Batara Aditya Raihanah Abiyah Julia Lavenita Rezi, Datuk Fahrul Rima Anggraini, Rima Rosa, Siti Rosmadani, Wiwid Russilawati, Russilawati Ruwaida, Salma Salim, Diaz Sya’bania Saman Abdurrahman Saputri, Widia Azhari Sari, Leli Mustika Sativa, Selvi Oriza Septika Rudiamon Sifa, Nurharija Awaliah Simanjuntak, Putri Dea Firsta Siregar, Rivahni Situmorang, Vickasyah Ramadani Sri Ramayanti Sukanti Sukanti Sundari, Lia Syafira, Haiyu Asy tiara dewi Tirta, Maura Najwa Noor Raina Tiwi, Dinda Dian Tri Suci Handayani Triyudha, Garibaldi Utami, Elifia Dwi Wahyuni, Risdah Wirdani, Hidayah Yuliani, Anisa Dwi Zahra, Fitri Az Zahratul Idami Zahro, Adinda Husna Fatia