More information: Pablo Moreno-García et al, Long-term nitrogen deposition reduces the diversity of nitrogen-fixing plants, Science Advances (2024). DOI: 10.1126/sciadv.adp7953 ...

Bowen, earth & atmospheric sciences, “Hydrological Controls on Nitrogen Dynamics in Artificially Drained Agricultural Watersheds,” $75,000 David A. Colby, medicinal chemistry & molecular pharmacology, ...

Blood urea nitrogen (BUN) is a blood test performed as a marker of kidney function. It is part of the basic or comprehensive metabolic panel done for health screening. It is also used to monitor the ...

Alkaloids are widely distributed in nature and are one of the most important classes of organic nitrogen compounds in plant secondary metabolites. They possess physiological activities and usually ...

According to the 2020 edition of the Chinese Pharmacopoeia, the arsenic content in realgar, calculated as diarsenic trisulfide (As₂S 3), should not be less than 90%. The titration results of 13 ...

Shanxi Provincial Key Laboratory of Drug Synthesis and Novel Pharmaceutical Preparation Technology, Shanxi Engineering Research Center of Characteristic Drug Development, Medicinal Basic Research ...