Article Per Year (5 Year)
p-Index From 2021 - 2026
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All Journal Science Get Journal Knowledge and Environmental Science for Living and Global Health
Diana Chandra Dewi
Sekolah Tinggi Teknologi Nasional Jambi
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

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Gastrointestinal Health Risk Analysis of Marine Pollution in the Java Coast: Biomarkers of Exposure in a Fishing Community in Semarang Aulia Zikra; Megawati; Fitriani Abdal; Yusriati; Diana Chandra Dewi
Knowledge and Environmental Science for Living and Global Health Vol. 1 No. 2 (2025): October, 2025
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/kesling.v1i2.378

Abstract

This study aims to assess the relationship between marine pollution exposure levels and the risk of gastrointestinal health disorders in coastal fishing communities in Semarang City, Indonesia. A cross-sectional study was conducted from May to October 2025 in the Tambaklorok and Tanjung Emas areas, which are areas with high seafood consumption patterns and exposure to marine environments. Data were collected through a structured questionnaire covering respondent characteristics, seafood consumption habits, and gastrointestinal complaints using the Gastrointestinal Symptom Rating Scale (GSRS). All respondents (100%) tested positive for microplastic exposure in feces with an average concentration of 18.4  6.7 particles/gram, dominated by PE, PP, and PS polymers, as well as heavy metal levels (Hg, Pb, Cd) through AAS or ICP-MS. Microplastics were the strongest predictor of increased GSRS scores (=0.37, p0.001), followed by blood mercury levels and inadequate sanitation conditions, with the model able to explain 43-47% of the variation in symptoms. This research fills a gap in the literature regarding marine pollution risk in Indonesia and provides a scientific basis for developing environmental health policies, coastal waste management, and more targeted public health intervention programs for fishing communities.
The Effect of Blue Light Exposure on Sleep Quality and Student Productivity in the Digital Learning Era Diana Chandra Dewi; Yuli Hardina
Science Journal Get Press Vol 3 No 3 (2026): July,2026
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/science.v3i3.686

Abstract

The proliferation of digital learning platforms has substantially increased student screen time, raising concerns about blue light (415–455 nm) exposure and its effects on sleep quality and cognitive productivity. This cross-sectional study examined 216 undergraduate students from three Javanese public universities (2023–2024). Blue light exposure was quantified using lux-meter spectrophotometry; sleep quality via the Pittsburgh Sleep Quality Index (PSQI); and productivity through Grade Point Average (GPA), Perceived Productivity Scale (PPS), and cognitive tests (Trail Making Test A/B, digit span). Regression and mediation analyses were performed. Students with ≥3 hours nightly pre-sleep blue light exposure had significantly poorer PSQI scores (8.6±1.8 vs. 4.1±1.2; p<0.001) and 18.3% lower academic productivity scores. Sleep quality partially mediated the blue light–productivity relationship (β=-0.41, 95% CI: -0.54 to -0.28). Use of blue light-filtering glasses and Night Mode significantly attenuated these effects (p=0.012). These findings provide empirical evidence for evidence-based digital wellness policies in Indonesian higher education.
Co-Authors Aulia Zikra Fitriani Abdal Megawati Yuli Hardina Yusriati