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“concentration”

43 referensi ditemukan
JOURNAL Umuminternational2025

Optical Monitoring of Coastal-Marine Environments through Colored Dissolved Organic Matter (CDOM) (Southern Pars Region Case Study)

Mehdi Gholamalifard; Bonyad Ahmadi; Maryam Naghdi; Seyed Mahmoud Ghasempouri; Ali Saber; Sohrab Mazloumi · DOAJ Open Access Articles

Objective: Colored Dissolved Organic Matter (CDOM) of terrestrial origin plays a crucial role in the biogeochemical cycles of carbon, nitrogen, and phosphorus in coastal regions. This component significantly influences water quality and ecosystem services by affecting light penetration. Despite the importance of CDOM in coastal ecosystems, most global studie…

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JOURNAL Umuminternational2025

Ecological Risk Assessment and Spatial Distribution of Heavy Metals in the Alvand Mountain Ecosystem: A 15-Year Monitoring Study (2008–2022)

Golnar Makhfi; Alireza Ildoromi; Samar Mortazavi · DOAJ Open Access Articles

Background: Soil contamination by heavy metals represents a critical environmental issue that endangers both ecological balance and human well-being. This study investigates the ecological risks of arsenic (As) and cadmium (Cd) in the Alvand Mountain ecosystem over a 15-year monitoring period (2008–2022), emphasizing their sources, spatial distribution, and …

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REPOSITORY PGMIindonesia2020

Pengaruh Media Teka-Teki Silang dan Video Animasi Tentang Sarapan Pagi Terhadap Pengetahuan dan Sikap Siswa SDN 101778 Medan Estate Tahun 2020

Pohan, Maharani · Repository UIN Sumatera Utara

Breakfast is included in one of the thirteen basic message of balanced nutrition. For school children breakfast sufficient proven to improve learning concentration and stamina thus improving learning achievement. Often school children ignore breakfast on the grounds of lack of time, not hungry or no appetite. Though breakfast is not just a booster stomac…

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