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All Journal Erudio: Journal of Educational Innovation Natural B
Setyawan P. Sakti
Jurusan Fisika, Fakultas MIPA, Universitas Brawijaya, Malang
Education Environmental Science

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PEMANFAATAN ALAT PERAGA UNTUK PROSES PEMBELAJARAN FISIKA DI SLTA (Studi Persepsi Guru-guru Fisika SLTA di Kabupaten Lombok Timur) Gancang Saroja; Ahmad Nadhir; Sukir Maryanto; Didik Rahadi Santoso; Setyawan P. Sakti
Erudio Journal of Educational Innovation Vol 2, No 2 (2014): ERUDIO (JOURNAL OF EDUCATIONAL INNOVATION)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (53.825 KB)

Abstract

Proses pembelajaran ilmu Fisika akan lebih menarik dan mudah dipahami siswa jika didukung dengan kegiatan praktikum dan eksperimen di laboratorium. Terkait dengan keterbatasan sarana laboratorium sekolah di SLTA Kabupaten Lombok Timur, Tim Pengabdian  jurusan Fisika UB melakukan kegiatan pelatihan pembuatan alat peraga fisika bagi para guru-guru fisika.Dalam penelitian ini dilakukan studi persepsi, dimana kepada para peserta diberikan angket sebelum dan setelah kegiatan. Kriteria-kriteria yang digunakan adalah pengukuran tingkat relevansi materi kegiatan yang di sampaikan terhadap kebutuhan guru, pengukuran tingkat kepuasan dari guru yang berperan sebagai peserta, serta umpan balik dan saran dari guru peserta pada tim pengabdianHasil studi menyatakan bahwa materi kegiatan sangat relevan terhadap kebutuhan guru-guru anggota MGMP Fisika di Kabupaten Lombok Timur. Selain itu, para peserta menyatakan bahwa kegiatan sangat memberikan manfaat bagi proses pembelajaran fisika. Sebagai umpan balik, peserta berharap adanya kegiatan yang sama di Lombok Timur dengan durasi waktu kegiatan yang lebih panjang. 
Utilization of Pseudomonas putida and Pseudomonas fluorescens as Biosensor to Measure BOD5 In Water Level Sri Sugiarti; Setyawan P. Sakti; Unggul P. Juswono
Natural B, Journal of Health and Environmental Sciences Vol 2, No 2 (2013)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1395.516 KB) | DOI: 10.21776/ub.natural-b.2013.002.02.6

Abstract

Along with population growth, the need for clean water is increasing. The availability of clean water is starting to decrease due to the decline in quality and quantity of water in the environment. Water quality degradation can be caused by water pollution from industrial waste disposal. One of the parameters to measure the level of pollution is the biochemical oxygen demand (BOD). Beside titration, biosensor method is a method developed to measure the BOD. The purpose of this study is to design a microorganism-based biosensor that can be used to measure levels of Biochemical Oxygen Demand (BOD5) using a microelectrode transducer with Pseudomonas putida and Pseudomonas fluorescents as bioreceptor on phenol wastes. BOD concentration was controlled by adding phenol in water with concentration of 0 mg/L, 50 mg/L, 100 mg/L, 150 mg/L, 200 mg/L and 250 mg/L. BOD concentration as measured by using titration method and developed biosensor. Experimental result shows that the potential of the biosensor linearly correlated to the concentration of BOD in water. Membrane surface area does not contribute any effect to the output potential of the biosensor. We can conclude that both Pseudomonas putida and Pseudomonas fluorescents can be use as material for measuring BOD concentration in water. 
Co-Authors Ahmad Nadhir Didik Rahadi Santoso Gancang Saroja Sri Sugiarti Sukir Maryanto Unggul P. Juswono