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All Journal (JUMPER) Jurnal Elektrik
Herotje Siwi
Politeknik Negeri Manado
Humanities Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Social Sciences

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Analisis Potensi Energi Surya Untuk Alat Bioteknologi Penghasil Nata De Coco Dengan Memanfaatkan Limbah Air Kelapa Dion Brian Hatimanis; Stieven N. Rumokoy; Christopel H. Simanjuntak; Maureen Langie; Daisy D. G. Pangemanan; Herotje Siwi; Fridly Manawan
Jurnal Elektrik Vol. 3 No. 2 (2024): Vol.3 No.2 1 Desember 2024
Publisher : Jurusan Teknik Elektro - Politeknik Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65485/elektrik.v3i2.1029

Abstract

Coconut water (Cocos nucifera. L) has the potential to become a useful nata de coco product by utilizing biotechnology tools. Research conducted on "Analysis of Solar Energy Potential for Biotechnology Tools to Produce Nata de Coco by Utilizing Coconut Water Waste in North Sulawesi". The objectives of the research are as follows : to analyze the potential of solar energy for biotechnology tools to produce nata de coco by utilizing waste coconut water. The research method used by the author uses research and development (R&D) methods. It is a method or step in creating new products or developing and improving existing products and is used to test product effectiveness. This research can utilize discarded coconut water and can also develop biotechnological tools to produce nata de coco. The results of this research can be an illustration and input for readers regarding the factors of using solar energy for biotechnology tools to produce nata de coco using coconut water waste. The measurement results obtained are the average intensity value received by solar sell which is 146056 lux. So the average value of voltage consumption is: 12.21 volts, current: 22.45 amperes, power: 290 watts.
Determinants of Construction Workers’ Safety Performance: Examining the Effects of K3 Implementation, Safety Training, Safety Leadership, and Work Discipline Herotje Siwi; Jedithjah Naapia Tamedi Papia; Franciscus Josep Tulung; Meike Negawati Kesek
Journal Management & Economics Review (JUMPER) Vol. 4 No. 1 (2026): July
Publisher : Malaqbi Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59971/jumper.v4i1.1231

Abstract

The construction project is a risky undertaking that involves exposure to several types of occupational hazards. Consequently, it is necessary to improve the safety performance of construction workers to ensure successful completion of the project and reduce risk at the workplace. This study will analyze the factors affecting safety performance by looking at the impact of K3, safety training, safety leadership, and work discipline on safety performance. A quantitative explanatory research approach was applied in this study, whereby a sample of 150 construction workers was identified via survey technique. Data collection was carried out using structured questionnaires rated on a five-point Likert scale and analyzed using multiple linear regression with SPSS software. The results reveal that K3 implementation, safety training, safety leadership, and work discipline have a positive and significant impact on safety performance. Out of all four variables, work discipline affects safety performance the most, followed by safety leadership, K3 implementation, and safety training. In this respect, the model has an explanatory power of 67.9%.
Co-Authors Daisy D. G. Pangemanan Dion Brian Hatimanis Franciscus Josep Tulung Fridly Manawan Jedithjah Naapia Tamedi Papia Maureen Langie Meike Negawati Kesek Simanjuntak, Christopel Hamonangan Stieven N. Rumokoy