Nuclear magnetic resonance (NMR) spectroscopy is a technique that detects the chemical environment of atomic nuclei by the absorption of radio-frequency electromagnetic radiation when in the ...

Although natural sources of compounds that contain the oxazolidin-2-one nucleus are very rare, 5 Kakeya et al. 6 were able to isolate a novel compound belonging to this class, ...

Ethyl phenylpropiolate at the dose of 1 mg/ear in 20 µl was dissolved in acetone and topically applied to the inner and outer surfaces of the right ear. The ethanol extract of A. myriophylla (AME) was ...

The iPhone 13 is the successor to Apple's best selling iPhone 12, and it improves upon a successful formula: $800 price for a flagship processor and a 6.1-inch screen size that is not too large, nor ...