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All Journal Jurnal Pendidikan Fisika dan Sains (JPFS) Jendela ASWAJA International Journal of Learning Media on Natural Science
Nurdin, deden Muhamad
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Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Physics Social Sciences Other

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Comparative Analysis of Groundwater Quality Parameters to Identify Contamination Patterns and Their Causes Nurdin, deden Muhamad
Jurnal Jembatan Efektivitas Ilmu dan Akhlak Ahlussunah Wal Jama'ah Vol 6 No 1 (2025): March
Publisher : LPPM UNU CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52188/jeas.v6i1.1310

Abstract

The purpose of this study was to analyze and compare groundwater quality parameters across land use zones to identify contamination patterns and underlying causes. The materials used in this study were collected from empirical studies conducted on 15 sites representing agricultural, industrial, and residential areas and analyzed for physical and chemical parameters including pH, total dissolved solids (TDS), heavy metals, and major ions. The method used in this study was comparative analysis with a qualitative approach. The results showed significant spatial variability influenced by anthropogenic activities and natural geochemical processes. Agricultural areas showed increased levels of TDS and nitrate, industrial areas showed heavy metal contamination, and residential areas showed higher turbidity. Statistical analysis revealed correlations between contamination sources and water quality parameters. The results underline the need for targeted management strategies to reduce contamination and ensure groundwater sustainability. The results identified significant spatial variability in groundwater quality across the 15 sites, influenced by natural hydrogeochemical processes and human activities. Agricultural areas showed high levels of total dissolved solids (TDS), electrical conductivity (EC), and nitrate due to fertilizers and irrigation. Industrial areas experienced heavy metal contamination, including lead and cadmium, exceeding WHO limits, while residential areas showed moderate contamination with occasional turbidity and nitrate problems. These results emphasize the impact of local human activities on groundwater quality and the need for targeted mitigation efforts.
Kontruksi Dan Uji Coba Alat Pengumpan Ikan Dengan Sistem Pelontar Bergerak Kostajaya, Asep; Iskandariah, Iskandariah; Nurdin, Deden Muhamad; Maulana, Amar; Hadijaya, Maulana; Ruspendi, Ruspendi; Kusumah, Billi Rifa; Ali, Muhamad Sidiq; Astuti, Lusia Cipto; Ekawati, Nurul; Novianti, Teni
Jurnal Pendidikan Fisika dan Sains (JPFS) Vol 8 No 2 (2025): September
Publisher : Pendidikan Fisika, FKIP, Universitas Nahdlatul Ulama Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52188/jpfs.v8i2.1365

Abstract

Budidaya ikan memainkan peran penting dalam industri perikanan, dengan kontribusi besar terhadap penyediaan protein hewani dan pertumbuhan ekonomi. Namun, metode pemberian pakan secara tradisional yang dilakukan secara manual sering kali tidak efisien, mengakibatkan distribusi pakan yang tidak merata dan pertumbuhan ikan yang tidak konsisten. Penelitian ini bertujuan mengembangkan alat pengumpan ikan portabel dengan sistem pelontar bergerak untuk mengatasi tantangan ini. Menggunakan metode eksperimental, alat pengumpan ini menggabungkan screw auger, dispenser bermotor, dan mekanisme osilasi yang dikendalikan oleh Arduino Nano ESP32, memastikan distribusi pakan yang tepat dan luas. Parameter kunci seperti desain kontainer pakan, mekanika pengumpanan, dan dinamika pelontar osilasi diidentifikasi dan dioptimalkan. Pengujian menunjukkan akurasi tinggi dalam deteksi level pakan (100%), konsistensi laju pengumpanan (4,98 g/detik), jangkauan penyebaran pakan yang efektif (1,58 meter), dan efisiensi energi (2,8 Wh). Sistem kontrol aplikasi real-time terbukti responsif (0,8 detik), memastikan manajemen pakan yang optimal. Teknologi yang dikembangkan meningkatkan efisiensi pemberian pakan, mengurangi tenaga kerja, mendorong pertumbuhan ikan yang seragam, mengurangi stres, dan mendukung budidaya ikan yang berkelanjutan. Penelitian lanjutan akan fokus pada pengujian jangka panjang dalam berbagai kondisi untuk memastikan kinerja dan keandalan yang berkelanjutan.
Efforts to Improve Student Learning Outcomes with Performance Assessment on the Concept of Environmental Pollution Nurdin, Deden Muhamad
International Journal of Learning Media on Natural Science (IJLENS) Vol. 2 No. 1 (2025): February (2025)
Publisher : CV. Generasi Intelektual Digital (GEN ID)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60005/ijlens.v2i1.104

Abstract

This research is motivated by the low value of student learning outcomes seen from the average value of mid-term exams and daily tests of students in biology subjects is 70, while the minimum completeness criteria value that must be achieved is 75. Based on this, researchers are interested in conducting learning that applies performance assessments to improve student learning outcomes. Performance assessments are used because they are authentic and comprehensive assessments whose final results will improve students' cognitive potential better. The purpose of this study was to determine the increase in student learning outcomes with performance assessments. The research method used was a weak experiment. The research instruments used were a performance assessment rubric and a post-test of student learning outcomes. The subjects in this study were grade X students at SMAN 1 Singaparna with a sample selected using the cluster random sampling technique of 37 people. Based on the results of the research and discussion in this study, it can be concluded that there was an increase in the learning outcomes of grade X students after the implementation of performance assessments. The implications of performance assessments have a significant effect on student learning outcomes in the moderate category.
Co-Authors Ali, Muhamad Sidiq Astuti, Lusia Cipto Billi Rifa Kusumah Ekawati, Nurul Hadijaya, Maulana Iskandariah, Iskandariah Kostajaya, Asep Maulana, Amar Novianti, Teni Ruspendi, Ruspendi