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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Journal of Educational Research and Evaluation JURNAL NUSANTARA APLIKASI MANAJEMEN BISNIS Jurnal Biogenerasi Konservasi Hayati Entrepreneurship Bisnis Manajemen Akuntansi (E-BISMA) Window of Public Health Journal Al Jahiz: Journal of Biology Education Research Jurnal Serambi Biologi The Indonesian Journal of Computer Science Jurnal Pengembangan Profesi Guru dan Dosen PENDIMAS
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KARAKTERISTIK BEADS ISOLAT KONSORSIUM BAKTERI TERMOFILIK PENGHASIL BIOLISTRIK Irdawati; Dwi Fatiha, Fathma
Jurnal Biogenerasi Vol. 10 No. 2 (2025): Volume 10 no 2 periode februari - september 2025 ( continues)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v10i2.6083

Abstract

Alginate matrix in the form of beads plays an important role in the process of immobilizing bacteria and maintaining their viability and stability in Microbial Fuel Cell (MFC) systems. The use of beads contributes to increasing the efficiency of electron transfer from bacteria to electrodes, thus supporting more optimal biolectricity production. This study aims to assess the characteristics of beads resulting from the immobilization of isolates of bioelectric-producing thermophilic bacterial consortium. The research method used was descriptive with visual observation of the color, shape, diameter, and number of bacterial colonies on the beads. Beads were synthesized from 5% sodium alginate solution mixed with six combinations of bacterial isolates (MS 9&12, MS 9&17, MS 9&18, MS 12&17, MS 12&18, and MS 17&18). The results showed that all beads had a round shape, yellowish white color, and diameter between 3.0 mm to 4.0 mm. The largest diameter was produced by the combination of MS 12&18 and MS 17&18 isolates, while the largest number of colonies was found in the combination of MS 12&17.
POLA PRODUKSI BIOLISTRIK KONSORSIUM BAKTERI TERMOFILIK SUMBER AIR PANAS SAPAN SUNGAI ARO Irdawati; Annisa Fitri, Siti
Jurnal Biogenerasi Vol. 10 No. 2 (2025): Volume 10 no 2 periode februari - september 2025 ( continues)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v10i2.6106

Abstract

This study aims to investigate the bioelectricity production pattern of a thermophilic bacterial consortium from Sapan Sungai Aro. Thermophilic bacteria, which can survive at high temperatures, have the potential to generate electricity through their metabolic activity. In this study, the thermophilic bacterial consortium was isolated from Sapan Sungai Aro and tested for bioelectricity production at a 5% concentration with various consortium ratios (1:2, 2:1, 1:3, 3:1). The data show that the stationary phase at the 20th hour produced the highest voltage, which was 0.764 V, at the 3:1 ratio. These results indicate that the optimal composition of the bacterial consortium influences the efficiency of bioelectricity production. Moreover, this study also reveals that both the exponential and stationary phases play important roles in electricity generation, with the stationary phase providing the most ideal metabolic conditions
Upaya Meningkatkan Hasil Belajar Pendidikan Melalui Model Sharing dan Media Audio Visual di UPTD SPF SMP Negeri 2 Danau Paris Irdawati; Lindawati
Jurnal Pengembangan Profesi Guru dan Dosen Vol. 1 No. 2 (2024): DECEMBER 2024
Publisher : Barkah Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63228/jppgd.v1i2.80

Abstract

: Penelitian ini dilatarbelakangi oleh rendahnya hasil belajar siswa dalam mata pelajaran Pendidikan Agama Islam, khususnya pada materi iman kepada hari akhir. Banyak siswa masih mengalami kesulitan dalam memahami konsep-konsep abstrak terkait peristiwa eskatologis karena metode pembelajaran yang digunakan guru cenderung monoton dan tidak memanfaatkan media yang menarik. Tujuan penelitian ini adalah untuk meningkatkan hasil belajar siswa dengan menerapkan model pembelajaran sharing yang dipadukan dengan media audio visual. Penelitian ini menggunakan pendekatan Penelitian Tindakan Kelas (PTK) yang dilaksanakan dalam dua siklus. Subjek penelitian adalah siswa kelas IX UPTD SPF SMP Negeri 2 Danau Paris tahun ajaran 2023/2024. Data dikumpulkan melalui observasi, tes hasil belajar, wawancara, dan dokumentasi, lalu dianalisis secara kualitatif dan kuantitatif. Hasil penelitian menunjukkan adanya peningkatan yang signifikan dalam hasil belajar siswa. Pada pra-siklus, sebagian besar siswa belum mencapai Kriteria Ketuntasan Minimal (KKM). Setelah tindakan pada siklus I, terjadi peningkatan meskipun belum optimal. Pada siklus II, hasil belajar siswa meningkat secara signifikan, ditunjukkan dengan lebih dari 85% siswa mencapai KKM. Kesimpulan penelitian ini adalah penerapan model sharing dengan dukungan media audio visual efektif dalam meningkatkan pemahaman konsep iman kepada hari akhir serta menumbuhkan antusiasme siswa dalam pembelajaran PAI
Pelatihan dan Pembinaan Da’i Cilik TK/TPA Masjid Jami Ushuluddin Di Desa Bacu Kecamatan Tonra Irdawati; Sri Permata; R. Nurhayati; Sudirman P; Agus Swito
PENDIMAS: Jurnal Pengabdian Masyarakat Vol 1 No 1 (2022): PENDIMAS: Jurnal Pengabdian Masyarakat
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan (FTIK) IAIM Sinjai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47435/pendimas.v1i1.902

Abstract

TK/TPA training and coaching is very important, especially for children or santri and female student. Bacu village, Tonra subdistrict, is a village located in the south of Tonra subdistrict, Bone district, which has not been touched by the existence of training and coaching programs on dai-dai’yah focused on TK/TPA. The purpose of this activity is to regenerate the sprit of self-confidence to appear in public. The achievement of training and coaching dai is to produce generations who have good morals in the future and provide understanding to children about religious knowledge so that they can produce generations who have broader and better Islamic insight, and childrent’s maturity in thinking and acting to improve teh guality of the santri and female students.
Efektivitas return on asset terhadap return saham pada perusahaan: studi manajemen keuangan Irdawati; Ng, Suwandi; Safira, Riata Dheasita; Prananingrum, Dwi Kartika; Azizi, Muhammad
Entrepreneurship Bisnis Manajemen Akuntansi (E-BISMA) Vol.4, No.1 (2023): June 2023
Publisher : Universitas Widya Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37631/ebisma.v4i1.834

Abstract

The purpose of this paper is to analyze the Effectiveness of Return On Assets Against Stock Returns in Companies through analysis of literature studies in the field of financial management. The method used in this research is literature research by reviewing some of the results of previous studies. This scientific article was written using qualitative methods and literature research with the help of the latest references obtained from Google Schoolers and Mendeley citation searches. Based on the review conducted, it means that Return On Assets has a positive and significant influence on Stock Returns. So that ROA has a significant effect on stock prices, where the profit generated by the company increases, the results obtained by the company also increase in terms of the level of profitability generated.
Development of a Problem-Based Instruction Student Worksheet on Environmental Change to Improve Senior High School Students’ Scientific Literacy Ilahi, Threesia Anugrah; Irdawati; Ahda, Yuni; Arsih, Fitri; Fajrina, Suci
Al Jahiz Vol 6 No 2 (2025): Al-Jahiz: Journal of Biology Education Research, July-December 2025
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan UIN Jurai Siwo, Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/al-jahiz.v6i2.11159

Abstract

This research aims to develop PBI-based student worksheet to improve science literacy and critical thinking of high school grade X students. The research method uses the Plomp Research and Development (R&D) model which consists of initial investigation, design, and evaluation stages. Formative evaluation refers to the Tessmer model, including self-evaluation, expert review, one-to-one, small group, and field test. The instruments used included validation sheets, response questionnaires, and science literacy ability tests. The subjects of the study were 29 students divided into experimental and control classes. The validation results showed that student worksheet was very valid (average score of 87.5%), practical (student and teacher response ≥85%), and effective in improving science literacy. The increase in science literacy gain score was 0.48 (experimental class) and 0.36 (control). The t-test showed significant differences between groups (p < 0.05). Thus, PBI-based student worksheet is suitable for use as a learning medium to improve students' 21st century skills.
Isolation of Endophyte Fungus from Taxus sumatrana Leaves and Their Potential as the Antimicrobial Producer hilda, Dwi hilda putri; Putri Erianti; Azwir Anhar; Irdawati
Konservasi Hayati Vol 19 No 1 (2023): APRIL
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/hayati.v19i1.26352

Abstract

Kuman patogen yang resisten terhadap antimikroba merupakan masalah global. Terjadinya patogen yang resisten mengakibatkan infeksi lebih sulit untuk diobati, dan berujung pada meningkatnya angka kematian. Untuk mengatasi masalah resistensi antimikroba, perlu dicari sumber-sumber senyawa aktif baru salah satunya menggunakan tumbuhan obat. Salah satu tumbuhan obat yang berpotensinya khususnya sebagai antikanker, antibakteri dan antifungi adalah Cemara sumatra (Taxus sumatrana) yang mengandung senyawa aktif taxol, flavonoid, fenolik dan lignan. Penelitian ini bertujuan untuk mengisolasi dan menguji aktivitas antimikroba cendawan daun Taxus sumatrana. Untuk memperoleh senyawa aktif maka dilakukan isolasi mikroba. Cendawan yang telah diisolasi diidentifikasi berdasarkan morfologinya. Isolat cendawan endofit difermentasi untuk mendapatkan produk metabolit sekunder dan diuji aktivitas antimikrobanya. Penelitian ini berhasil mengisolasi 9 jenis isolat cendawan endofit dari daun Taxus sumatrana. Pada bakteri S. aureus diperoleh diameter sebesar 14 mm oleh isolat TD3. Pada bakteri E. coli, aktivitas antimikroba yang paling kuat dihasilkan oleh isolat K1 sebesar 8.50 mm, selanjutnya aktivitas antimikroba yang paling tinggi terhadap C. albicans dihasilkan oleh isolat D6 sebesar 9.93 mm. Aktivitas antimikroba yang paling baik dihasilkan oleh isolat TD3 terhadap S. aureus.
The Validity and Practicality of SSCS-Based Student Worksheet on Ecology Material and Environmental Change Syamsurizal; Irdawati; Violita; Afni, Refni Syahleli; Sholichin, Muhamad
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.4444

Abstract

This research aims to produce student worksheet based on SSCS (Search, Solve, Create and Share). This type of research is development research using the Plomp model. The development stage of this model starts from the initial investigation stage, the development or prototyping stage, and the assessment stage. The instruments used in this development research were teacher questionnaire sheets, student response questionnaire sheets, self-evaluation sheets, and SSCS-based LKPD validation sheets (Search, Solve, Create and Share) by experts, as well as SSCS-based LKPD practicality assessment sheets (Search, Solve, Create and Share) which is filled in by teachers and students. The results showed that the SSCS-based LKPD (Search, Solve, Create and Share) was very valid with a score of 86.31%. The practicality assessment of student assessment in field trials (group evaluation) with a score of 92.00% with very practical criteria, and the practicality assessment by the teacher obtained a score of 96.00% with very practical criteria. It can be concluded that the LKPD based on SSCS (Search, Solve, Create and Share) that has been developed is included in the category of very valid and very practical.
Pengaruh Model Pembelajaran Kooperatif Two Stay Two Stray (TSTS) Berbantuan Media Interaktif Berbasis STEM Terhadap Berpikir Kritis dan Hasil Belajar Siswa Pada Materi Sistem Indera Di SMA Negeri 2 Kerinci Sepriyani, Eria Marina; Lufri; Irdawati; Ahda, Yuni
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.4551

Abstract

This study aims to determine the effect of the two-stay two stray cooperative learning model (TSTS) assisted by STEM-based interactive media on critical thinking and student learning outcomes on sensory system material at SMA Negeri 2 Kerinci. This type of research is quasi-experimental research with a randomized control-group posttest-only design. The population of this study came from class XI students of SMA Negeri 2 Kerinci for the 2021/2022 Academic Year. The sampling technique used is a purposive sampling technique, namely that the determination of the sample takes into account certain criteria that have been made for the subject according to the research objectives. Data analysis techniques used the normality test, homogeneity test, and hypothesis test. Based on the research that has been done, it can be concluded that the STEM-based two stay two stray learning model has an effect on critical thinking and student learning outcomes on sensory system material at SMA Negeri 2 Kerinci.
Pengaruh Model Pembelajaran Flipped Classroom Dengan Pendekatan Etnosains Terhadap Kemampuan Berpikir Kritis Siswa Afdarina, Oksa; Chatri, Moralita; Helendra; Irdawati
Jurnal Penelitian Pendidikan IPA Vol 10 No 5 (2024): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i5.7191

Abstract

The application of the flipped classroom learning model with an ethnoscience approach trains students to learn independently in developing and sharpening critical thinking skills. The aim of the research is to determine the effect of the flipped classroom learning model with an ethnoscience approach on students' critical thinking abilities. This type of research is a quasi-experiment with a non-equivalent control group design. The sample used consisted of two classes, one class was designated as the experimental class and one class as the control class. The purposive sampling method was used to collect samples. The results of hypothesis testing using the t test show that t count is greater than table at a significance level of 0.05, which indicates that the hypothesis H0 is rejected. Thus, the flipped classroom learning model with an ethnoscience approach influences students' critical thinking abilities.
Co-Authors Afdarina, Oksa Afni, Refni Syahleli Agus Swito Ahri, Reza Aril Alfatimah Azzahra, Balkis Amelya Ningsih , Putri Annisa Fitri, Siti Aulia Nabila, Dinda Azizi, Muhammad Azwir Anhar Azzahra, Zulia Putri Citrawati, A.A.I.A Dania Putri, Echy des Dezi Handayani Dwi Fatiha, Fathma Dwi Hilda Putri Eka Nuraini, Fauzi FAJRINA, SUCI Febriana, Tiara Febrianti, Liza Feby Nasty, Intan Fitri Arsih Haqil Triyatdipa Heffi Alberida Helendra Hendriany, Shintia Herwanfakhrizal hilda, Dwi hilda putri Huda Asra, Rahmatul Ilahi, Threesia Anugrah Johannes Baptista Halik Lambe, Kristian Hoegh Pride Linda Advinda LINDAWATI Lufri Lufri Mardhiyah Nazri, Laila Mongan, Claudio Julio Moralita Chatri Nazif Zen, Muhammad Nurmalena Nurmiati Muchlis Oktavianus Prananingrum, Dwi Kartika Putri Erianti R. Nurhayati Reza Aril Ahri Ruri Lorika Safira, Riata Dheasita Sepriyani, Eria Marina Sholichin, Muhamad Sri Permata Sudirman P Suwandi Ng Syamsurizal Syiifa kamila Namidya Tamara, Silvi Violita Wulandari, Tesya Yuni Ahda Zahrani Marza, Regina