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All Journal Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) YASIN: Jurnal Pendidikan dan Sosial Budaya
Haris Prasetyo
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science Social Sciences Other

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Kelayakan Usaha Pengawetan Bambu Berbasis Masyarakat Haris Prasetyo
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 9 No. 1 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.1.200-209

Abstract

Bamboo can be used as a wood substitute, but bamboo has a low natural durability.  Traditional methods of preservation bamboo by water soaking takes a long time and vast place.  The low natural durability of bamboo and the low contribution of household income from bamboo cultivation encourages the development of other business alternatives, such as bamboo preservation business. The objectives of this research are to assess the feasibility of bamboo preservation. Data analysis was performed using Market Analysis and Development (MA&D) method. The results of market aspect shows that bamboo is feasible to be developed due to the large market demand still not balanced with limited availability. The results of ecological and environmental aspects, need to find alternative preservatives that are more environmentally friendly. The results of social and institution aspect shows that bamboo business has the support of local government and the community also has local wisdom in the management of bamboo. The results of financial analysis shows that in riil condition bamboo preservation business was feasible; Net Present Value (NPV) is IDR 30.737.598, Benefit Cost Ratio (BCR) at 1,29 and the Internal Rate of Return (IRR) at 31,72%.
Pengembangan Multimedia Interaktif Melting pada Materi Perubahan Wujud Zat untuk Siswa Kelas IV SDN Semen 1 Haris Prasetyo; Wahyudi Wahyudi; Aprilia Dwi Handayani
YASIN Vol 6 No 4 (2026): AGUSTUS
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/yasin.v6i4.11143

Abstract

Although Natural and Social Sciences (IPAS) learning on changes in states of matter in elementary schools has been supported by various learning media, students’ low understanding of abstract concepts remains a major obstacle, especially when the media used are still limited to textbooks, pictures, and instructional videos. This study aims to develop MELTING (Media Learning Interactive) interactive multimedia on the topic of changes in states of matter for fourth-grade students at SDN Semen 1 and to determine its levels of validity, practicality, and effectiveness. This study used the Research and Development method with the ADDIE model, which includes the stages of Analysis, Design, Development, Implementation, and Evaluation. The research subjects consisted of media experts, material experts, fourth-grade teachers, and fourth-grade students at SDN Semen 1. Data were collected through observation, interviews, questionnaires, and learning outcome tests, then analyzed using quantitative descriptive methods. The results show that MELTING interactive multimedia obtained a validity level of 86%, categorized as very valid, based on assessments by media and material experts. The practicality test results showed a percentage of 93%, categorized as very practical, based on teacher and student responses. In addition, the effectiveness test results showed an improvement in students’ learning outcomes, with an N-gain score of 0.56, which falls into the moderate category. The conclusion of this study affirms that MELTING interactive multimedia is feasible for use as a learning medium on changes in states of matter for fourth-grade elementary school students. The implications of this study show that interactive multimedia can serve as an effective alternative learning medium for improving students’ conceptual understanding and learning outcomes in abstract subject matter.
Co-Authors Aprilia Dwi Handayani Wahyudi Wahyudi