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All Journal POSITRON ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat INSECTA: Integrative Science Education and Teaching Activity Journal Inovasi Fisika Indonesia (IFI) JSEP (Journal of Science Education and Practice) Journal of Dedication in Community (JoDiC)
Firdaus, Rohim Aminullah
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Agriculture, Biological Sciences & Forestry Humanities Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences Other

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FROM ONLINE TO IN-PERSON: STUDENTS’ MOTIVATION AND SELF-REGULATION IN SCIENCE TEACHING ACTIVITIES DURING AND AFTER THE COVID-19 PANDEMIC Syauqi, Salma Kaisan; Winarno, Nanang; Samsudin, Achmad; Damopolii, Insar; Firdaus, Rohim Aminullah
INSECTA: Integrative Science Education and Teaching Activity Journal Vol. 5 No. 1 (2024)
Publisher : Science Education, Institut Agama Islam Negeri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21154/insecta.v5i1.8689

Abstract

This study aims to find out the differences in students’ motivation and selfregulation in science teaching activities during and after the COVID-19 pandemic and the strengths and weaknesses of science teaching activities during and after the COVID-19 pandemic from students’ perceptions to improve students’ engagement and achievement in science. This study used a survey design involving 469 junior high school students from 7th, 8th, and 9th grades from 30 different schools located in West Java, East Java, West Nusa Tenggara, Central Java, Special Capital Region of Jakarta, Riau, and East Kalimantan. The instrument consisted of an adapted version of the SALES Questionnaire with a 5-point Likert scale and open-ended questions. Data analysis was carried out by quantitative and qualitative methods. The results showed that students’ motivation and self-regulation in science teaching activities during and after the COVID-19 pandemic were significantly different. The strengths of science teaching activities during the COVID-19 pandemic are flexibility, fewer distractions, and the availability of more learning resources, while the weaknesses are a lack of explanation and understanding, uninteresting, limited interaction, and limited practical activities. The strengths of science teaching activities after the COVID-19 pandemic are clearer explanations, availability of practical activities, and ease of interaction, while the weaknesses are distractions from peers, limited learning resources, and boring. The findings from this study provide an opportunity for science teachers to plan and implement effective learning strategies to increase students' motivation and self-regulation to improve their engagement and achievement in science.
Pemberdayaan Masyarakat Melalui Eco-Enzyme untuk Pengelolaan dan Degradasi Limbah Cair Industri Tempe di Desa Sukorejo Trenggalek Firdaus, Rohim Aminullah; Rahmawati, Endah; Dzulkiflih, Dzulkiflih; Khoiro, Muhimmatul; Putri, Nugrahani Primary; Yantidewi, Meta
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 10 No. 4 (2025): December
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/6eyqtz37

Abstract

Limbah cair industri tempe memiliki beban organik tinggi (COD, BOD, TSS) yang berpotensi menurunkan kualitas lingkungan jika dibuang tanpa pengolahan. Sebagian besar pelaku UMKM tempe di pedesaan belum memiliki akses terhadap teknologi pengolahan yang murah dan sederhana, sehingga diperlukan pendekatan alternatif berbasis partisipasi masyarakat. Kegiatan Pengabdian kepada Masyarakat (PKM) ini bertujuan memberdayakan warga Desa Sukorejo, Trenggalek dalam pengelolaan limbah cair menggunakan eco-enzyme hasil fermentasi sampah organik rumah tangga. Berbeda dari pendekatan konvensional, kegiatan ini menerapkan model partisipatif dengan pembuatan dan penerapan eco-enzyme berbasis rumah tangga yang terintegrasi dengan monitoring masyarakat, sebuah pendekatan yang belum umum diterapkan pada pengelolaan limbah tempe skala kecil. Metode meliputi pemetaan pelaku usaha, sosialisasi, pelatihan pembuatan eco-enzyme (rasio 3:1:10; fermentasi ±90 hari), penyusunan SOP aplikasi (1–5% v/v), dan pendampingan uji sederhana (pH, bau, kekeruhan). Program diikuti 18 peserta dan menghasilkan kelompok pengelola serta unit percontohan. Observasi menunjukkan penurunan bau dan kekeruhan dalam 24–48 jam serta peningkatan pengetahuan peserta. Evaluasi respon peserta menunjukkan kategori sangat baik (rata-rata >90%). Kegiatan ini efektif meningkatkan kapasitas masyarakat dan menunjukkan potensi eco-enzyme sebagai solusi awal pengolahan limbah cair tempe yang murah dan berkelanjutan. Community Empowerment Through Eco-Enzymes for the Management and Degradation of Liquid Waste from Tempeh Industries in Sukorejo Village, Trenggalek Abstract Liquid waste from tempeh production contains high organic loads (COD, BOD, TSS) that can degrade environmental quality if discharged without proper treatment. Most small-scale tempeh producers in rural areas lack access to simple and low-cost treatment technologies, necessitating an alternative approach grounded in community participation. This Community Service Program (PKM) aims to empower residents of Sukorejo Village, Trenggalek in managing liquid waste using eco-enzymes produced from the fermentation of household organic waste. Unlike conventional approaches, this program adopts a participatory model involving the household-based production and application of eco-enzymes integrated with community monitoring—an approach that is rarely implemented for small-scale tempeh wastewater management. The methods included stakeholder mapping, awareness-building activities, training on eco-enzyme production (3:1:10 ratio; ± 90-day fermentation), preparation of application SOPs (1–5% v/v), and facilitation of simple testing (pH, odor, turbidity). The program involved 18 participants and resulted in the formation of a management group and a pilot demonstration unit. Observations indicated reductions in odor and turbidity within 24–48 hours, alongside improved participant knowledge. Participant response evaluations showed excellent results (average >90%). This program effectively enhanced community capacity and demonstrated the potential of eco-enzymes as a low-cost and sustainable preliminary solution for treating liquid waste from tempeh production.
Three-Dimensional Soliton Propagation in Ruby for High-Stability Optical Communication Yantidewi, Meta; Firdaus, Rohim Aminullah; Khoiro, Muhimmatul; Winarno, Nanang; Ramadani, Riski; Nikmah, Afiyah; Alhusni, Hanan Zaki
POSITRON Vol 16, No 1 (2026): Vol. 16 No. 1 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v16i1.93213

Abstract

Optical communication in digitalisation is a significant catalyst in supporting high-speed and large capacity data transmission. However, optical communication applications face substantial challenges, such as energy loss, dispersion effects, and signal stability over long transmission distances. One material that has the potential to overcome these problems is ruby due to its nonlinear characteristics. This research work numerically investigates soliton propagation in ruby material analysis as a Nonlinear Schrödinger Equation numerical modelling and three-dimensional visualisation with Cubic B-Spline, modified Korteweg-de Vries-Zakharov-Kuznetsov, and Boussinesq methods to understand ruby material characteristics more deeply. The simulations show that the soliton waveform remains stable during propagation, with its amplitude confined within approximately -1.05 to 0.35, indicating robust shape preservation under anisotropy and temperature variations. like most previous studies that are limited to one or two dimensional modelling or to dispersive fibre media, this study implement a full 3D NLSE framework tailored to the physical properties of ruby. The results show that both numerical modelling and three-dimensional visualisation indicate that ruby material can maintain the soliton waveform during propagation. This finding suggests that ruby has the potential to be applied in optical communication systems with high stability to support long-distance data transmission.
Co-Authors Achmad Samsudin Alhusni, Hanan Zaki Briantoko, Elang Rimba Rimba Damopolii, Insar DZULKIFLIH Dzulkiflih, Dzulkiflih Dzulkiflih, FNU Endah Rahmawati Endah Rahmawati Eny Latifah, Eny Fadhilah, Nisa'ul Febriani, Cornelia Khoiro, Muhimmatul Kurniawan, Ananda Rossy Lilit Rusyati Lutfi Rohman Masulah, Bidayatul Meta Yantidewi Muhimmatul Khoiro Mustikasari, Vita Ria Nanang Winarno Nikmah, Afiyah Nugrahani Primary Putri Nugrahani Primary Putri NUR OCTAVINA, CHOIRINA RACHMA Prasetyo, Dhenatra Rifqy Rahastama, Swastya Ramadani, Riski Saputra, Winata Tegar Syauqi, Salma Kaisan Ula, Rini Khamimatul Yantidewi, Meta Yohanes Dwi Saputra, Yohanes Dwi