Article Per Year (5 Year)
p-Index From 2021 - 2026
0.817
P-Index
This Author published in this journals
All Journal Muadalah : Jurnal Hukum YASIN: Jurnal Pendidikan dan Sosial Budaya Interval: Indonesian Journal of Mathematical Education International Journal Sustainable Aquaculture
Rahayu, Dini
Unknown Affiliation
Religion Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Education Immunology & microbiology Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Other

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Inovasi Sistem Bioflok Dengan Sumber Bakteri Berbeda Untuk Budidaya Berkelanjutan Benih Kakap Putih (Lates calcalifer) Rahayu, Dini; Jamal, Endang; Pattinasarany, Agapery Y.
Indonesian Journal of Sustainable Aquaculture Vol 1 No 2 (2024): Indonesian Journal of Sustainable Aquaculture
Publisher : University of Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/aquaculture.1.2.62-70

Abstract

Biofloc is one of the advances in fish farming technology with the main principle of recycling nutrients into the culture system. Biofloc application has been widely used in freshwater aquaculture systems, but in seawater aquaculture systems it is still very limited. This study evaluated the application of bioflocs with different bacterial sources, EM4_Fishery and Nitrobac, on the growth and survival of White Snapper (Lates calcalifer) and the water quality of the aquaculture environment. This study used a completely randomised design (CRD) with three replications. A total of 19 White Snapper fish with an average weight of 6.86±0.17 g/L were put into each 14-day-old biofloc and control. Feeding was 2% of total body weight with a frequency of once a day (09.00 am). The results showed that during the experimental period, the weight of White Snapper fish decreased variably in both treatments and controls. The survival rate of White Snapper fish in the Nitrobac bacteria treatment tended to be higher than in the EM4_Fishery bacteria, but both were lower than the control with a tendency for large fish to survive longer than small fish. Concentrations of ammonia, nitrite and nitrate in the treatments at the beginning of the experiment were higher than the control but tended to decrease with the length of rearing. DO values tended to increase in the treatments compared to the control, while DO values tended to increase in the treatments compared to the control. These findings revealed that the Nitrobac as a source of biofloc bacteria in marine White Snapper culture is more effective than EM4_Fisheries, but requiring further experiments with some concern on individual fish size greater than 7 g and the biofloc older than two weeks is recommended.
ANALISIS PENERAPAN SERTIFIKAT ELEKTRONIK DI KANTOR PERTANAHAN KABUPATEN SORONG Rahayu, Dini; hujriman
Muadalah : Jurnal Hukum Vol. 5 No. 2 (2025): Muadalah : Jurnal Hukum
Publisher : Prodi Hukum Keluarga (Akhwal Syahsiyyah) IAIN Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47945/muadalah.v5i2.1977

Abstract

The implementation of electronic certificates is part of the effort to digitize the land administration system to improve efficiency, security, and transparency in land rights management. This study aims to analyze the implementation of electronic certificates at the Sorong Regency Land Office and the obstacles encountered. The methods used were observation and interviews. The results of this study indicate that the main obstacles in implementing this system include mismatches in owner data between ID cards (KTP) and analog certificates, as well as the relatively time-consuming validation process for land books and measurement letters. Nevertheless, electronic certificates provide benefits such as increased service efficiency, improved data security, and improved land transactions. To optimize their implementation, accelerated digitalization, simplified procedures, increased outreach, and strengthened regulations are needed. With these steps, the electronic certificate system can become a modern solution for land administration in Indonesia.
Pengaruh School Well Being terhadap Prestasi Belajar Siswa di SMA Negeri 3 Bukittinggi Rahayu, Dini; Afrida, Yeni; Arjoni, Arjoni; Hartati, Sri
YASIN Vol 4 No 6 (2024): DESEMBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/yasin.v4i6.4171

Abstract

This research was motivated by the condition of condition of student well-being (school well-being) at SMA Negeri 3 Bukittinggi which includes four aspects includes four aspects: school facilities (having), student self-fulfillment (being), social relationships (loving), and health (health). The research aims to to determine the effect and level of influence of school well-being on student achievement. student learning achievement. Using an associative type quantitative approach, this research This study involved 149 respondents who were selected by proportional random sampling. The research instrument was a questionnaire, and data analysis used simple regression. regression. The results showed the average score of students' school well-being score of 126 (high) with a percentage of 84%, and learning achievement in the competent category (100%). competent category (100%). Hypothesis testing shows school well-being has a significant effect on learning achievement with a significance value of 0.000 (<0.05) and Fcount (16.461) > Ftable (3.91). The effect of school well-being on learning achievement is 10.1%, so it can be concluded that school well-being plays an important role in improving learning achievement. that student well-being plays an important role in improving learning achievement.
An Exploratory Study of Students’ Mathematical Problem-Solving Ability Based on Wankat and Oreovocz Theory Rahayu, Dini; Hsien, Tan Wen
jurnal matematika Vol 4 No 1 (2026): April
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/ijome.v4i1.3212

Abstract

Purpose of the study: This study aims to explore students’ mathematical problem-solving ability based on the Wankat and Oreovocz theory by identifying how students perform across each stage of the problem-solving process in order to provide a comprehensive description of their abilities. Methodology: This study employed a qualitative descriptive approach using purposive sampling, involving six students from class VII E at SMP Negeri 19 Bandar Lampung. Data were systematically collected through observation, written essay tests, and semi-structured interviews, and analyzed using data reduction, data display, and conclusion drawing with triangulation techniques for validation purposes. Main Findings: The results show that most students achieved high problem-solving ability, with 59.26% in the excellent category and 25.93% in the good category. Students performed best at the motivation stage (“I Can”) but showed lower performance in planning, evaluation, and generalization stages. High-performing students completed all stages systematically, while lower-performing students experienced difficulties beyond initial stages, especially in selecting appropriate strategies and verifying solutions. Novelty/Originality of this study: This study offers a detailed stage-based analysis of students’ mathematical problem-solving ability using the Wankat and Oreovocz framework, focusing on students’ actual performance rather than instructional strategies. It provides new insights into specific difficulties at each stage, particularly in planning, and contributes to advancing knowledge on how structured problem-solving frameworks can be applied to analyze students’ cognitive processes.
Co-Authors Agapery Y. Pattinasarany Arjoni, Arjoni Endang Jamal Hsien, Tan Wen Hujriman Hujriman Sri Hartati Yeni Afrida, Yeni