Efficiency and mechanism of controlling phosphorus release from sediment using a biological aluminum-based P-inactivation agent.

Eutrophication is a significant challenge for surface water, with sediment phosphorus (P) release being a key contributor. Although biological aluminum-based P-inactivation agent (BA-PIA) has shown effectiveness in controlling P release from sediment, the efficiency and mechanism by BA-PIA capping is still not fully understood. This study explored the efficiency and mechanism of using BA-PIA capping controlling P release from sediment.

Comparison of MRI and CT Scan for the Detection of Liver Cancer.

Objective: The objective of the paper was to compare the value of CT and MRI in the diagnosis of primary carcinoma of the liver.

Methods: A retrospective analysis was performed on 132 cases of suspected primary liver carcinoma. CT and MRI diagnosis were performed and pathological results were compared to determine the diagnostic value of the two methods.

Changes in the stoichiometry of along an elevation gradient in a Chinese subtropical forest.

Elevation is important for determining the nutrient biogeochemical cycle in forest ecosystems. Changes in the ecological stoichiometry of nutrients along an elevation gradient can be used to predict how an element cycle responds in the midst of global climate change. We investigated changes in concentrations of and relationships between nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) in the leaves and roots of the dominant tree species, along an elevation gradient (from 500 to 1,000 m above mean sea level) in a subtropical natural forest in China.