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All Journal J-MKLI (Jurnal Manajemen dan Kearifan Lokal Indonesia) Industri Inovatif : Jurnal Teknik Industri Jurnal Komunitas: Jurnal Pengabidian Kepada Masyarakat Buletin Profesi Insinyur Education Achievement: Journal of Science and Research JELL (Journal of English Language Learning Journal of Educational Research and Practice Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital LEOTECH: Journal of Learning Education and Technology
Masrurotul Ajiza
Institut Teknologi Nasional Malang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Public Health Social Sciences Other

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The Effect of Bima Bay Water Quality Conditions on the Sea Snot Phenomenon Hidayat, Makbul; Arafah, Feny; Asryadin; Ajiza, Masrurotul
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 20 No. 1 (2026)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/inderaja.v20i1.8809

Abstract

Sea Snot is phenomenon that occurs in waters characterized by the collection of mucus or sludge on the surface of the sea which is an accumulation of various types of microorganisms such as phytoplankton and bacteria. The first occurrence in Indonesia was reported in Bima Bay on April 25, 2022. This study aims to assess the water quality of Bima Bay using Sea Surface Temperature (SST), Dissolved Oxygen (DO), and Salinity parameters derived from Landsat satellite imagery and validated through field surveys. Based on the results of determining the quality status of Bima Bay waters, shows that there is a change in quality status at each point from 2022 to 2023. From a total of 50 sample points, it shows that there are 44% of points that still have lightly polluted status and from good to lightly polluted status there are 18%. This shows that there is still lightly pollution of 62% in the waters of Bima Bay after one year of the sea snot phenomenon. The condition of Bima Bay's waters does not have the status of being moderately or heavily polluted. These findings highlight the need for increased environmental awareness among local communities to prevent further degradation of Bima Bay’s waters.
Live Versus Video-Recorded Student Presentations: A Convergent Mixed-Methods Study of Confidence, Anxiety, and Engagement in Higher Education Ajiza, Masrurotul; Arafah, Feny
Journal of Educational Research and Practice Vol. 4 No. 1 (2026): Ongoing Issue
Publisher : Yayasan Centre for Studying and Milieu Development of Indonesia (CESMiD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70376/jerp.v4i1.433

Abstract

This study used convergent mixed-methods to investigate whether live presentations and video-recorded presentations differentially affected undergraduate students' presentation confidence and anxiety and their level of engagement with presentations. A total of 35 students completed both a live and an edited video presentation; researchers used validated Likert scales to measure quantitative outcomes, which they analyzed through paired tests in JASP and thematic analysis of written reflections in NVivo. The video format produced increased task-specific confidence according to quantitative analysis, which showed a difference of 2.29, a large standardized effect size of 0.89, and a p-value below .001. The analysis revealed that no significant differences existed between the two presentation formats concerning presentation anxiety (paired t = 1.26, p = .216) or engagement (paired t = −1.36, p = .183); nonparametric analyses returned consistent results. The qualitative analysis of 35 reflections found six main themes, which included rehearsal and control, real-time interaction and feedback, technical workload, perceived fairness, affective effects, and logistics; the analysis showed that 26 participants linked rehearsal/control to increased confidence, while 24 participants showed the same link. The joint display connected the quantitative and qualitative data: the video condition provided confidence gains, which related to the students' reported chances for rehearsal and revision. At the same time, their anxiety and engagement levels changed based on their interactional and logistical circumstances. The research demonstrates how Self-Efficacy Theory applies to controlled mastery chances between recording and editing, leading to improved performance in specific tasks, while Social Presence Theory shows how people face choices between two options that affect their personal contact with others and the process of performance assessment. The practical implications require institutions to establish organized recording practice spaces, which create fairness in assessment through separate content assessment from production quality assessment. At the same time, they need to help students with technical problems to create equity in educational outcomes.
Co-Authors Aladin Eko Purkuncoro Anis Artiyani Asryadin Dimas Indra Laksmana Dini Deswarni, Dini Feny Arafah Gultom, Peniel I Hidayat, Makbul Iryanti Fatyasari Nata, Iryanti Fatyasari Lalu Mustiadi Maranatha Wijayaningtyas Nanik Astuti Rahman Peniel Gultom Rahayu , Arum Putri Rohani, Tri Setiawati