主题词：Isotope Analysis in Ecology; Groundwater and Isotope Geochemistry; Radioactivity and Radon Measurements; Geology and Paleoclimatology Research; Radioactive contamination and transfer; Groundwater flow and contamination studies; Soil Carbon and Nitrogen Dynamics; Atmospheric and Environmental Gas Dynamics; Nuclear and radioactivity studies; Hydrology and Watershed Management Studies; Plant Water Relations and Carbon Dynamics; Soil and Water Nutrient Dynamics; Graphite, nuclear technology, radiation studies; Radioactive element chemistry and processing; Marine and coastal ecosystems; Groundwater and Watershed Analysis; Marine animal studies overview; Methane Hydrates and Related Phenomena; Karst Systems and Hydrogeology; Diet and metabolism studies; Human auditory perception and evaluation; Climate variability and models; Diverse Scientific and Economic Studies; Educational Robotics and Engineering; Metabolomics and Mass Spectrometry Studies