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The Influence of Principal Supervision and Teacher Motivation on Teacher Performance at Kartika II-5 Elementary School Erdalaila, Erdalaila; Andayani, Sri; Ahmaludin, Ahmaludin; Selamat, Selamat
Ensiklopedia: Jurnal Pendidikan dan Inovasi Pembelajaran Saburai Vol 4, No 01 (2024): ENSIKLOPEDIA: Jurnal Pendidikan dan Inovasi Pembelajaran
Publisher : Universitas Sang Bumi Ruwa Jurai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24967/esp.v4i01.3052

Abstract

The purpose of this study was to determine how much influence the principal's supervision and teacher motivation have on teacher performance at Kartika II-5 Elementary School. This research is descriptive quantitative research. The population in this study was all 53 teachers at Kartika II-5 Elementary School, Bandar Lampung. In determining the sample using total sampling technique. Data collection techniques in this research include observation, questionnaires and literature study. Each variable consists of 15 statement items which are measured using a scoring scale of 1 to 4 using a Likert scale. The data analysis technique in this research is validity testing, reliability testing, simple and multiple linear regression testing, and hypothesis testing. Based on data analysis, it was found that the variables of principal supervision and teacher motivation influenced teacher performance, both partially and simultaneously.
System Dynamics Model of Technology Transition under Resource Constraints: A Catfish Farming Case Prasetyaningsih, Endang; Renosori, Puti; Selamat, Selamat; Wahyudi, Dadan
Jurnal Improsci Vol 3 No 2 (2025): Vol 3 No 2 October 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v3i2.1050

Abstract

Background. This study deals with a System Dynamics (SD) model to investigate technology transition under resource constraints, using small-scale catfish farming as a case study. In this context, land availability constitutes the resource constraint. To address this constraint, it is necessary to achieve catfish productivity gains through technological intensification, such as the use of aquaponics. Methods. The SD model captures feedback interactions among production, operating costs, revenue, profit, and reinvestment by setting aside a portion of profits. The SD model's behavior is analyzed by generating six scenarios over 25 years to examine the effects of feed price fluctuations, fingerling price fluctuations, and alternative reinvestment rates. Model outcomes were evaluated using production, profitability, and the benefit–cost ratio (BCR) as an economic performance indicator. Result. The results show that feed and fingerling price fluctuation exerts a strong negative effect on profitability and economic feasibility, while higher reinvestment rates accelerate aquaponics adoption and improve long-term performance. Conclusion. BCR analysis indicates that technology transition in land-limited catfish farming is feasible only when BCR remains above unity, supporting sustained reinvestment. Implementation. The study highlights the importance of reinvestment strategies and feed and fingerling costs management in enabling resilient technological upgrading in spatially constrained aquaculture systems.
Co-Authors Abdul Haris Ahmaludin, Ahmaludin Anita Christine Carlo, Nafryzal Endang Endang, Endang Endang Prasetyaningsih Erdalaila, Erdalaila Erwin, Yulias Hadi, Kamarul Hifni, Iskandar Z. Hudalil, Ahmad Husna Purnama Kawulusan, Bovie Khairul Saleh Lusi Utama Muhammad Qorib Nurjannah S Pasaribu, Munawir Prayoga, Andri Riki Irawan, Riki Safitri, Nita Dwi Sri Andayani Syamsul Arifin Wahyu Wahyudi, Dadan Wijaya, Ayu Z, Bustami