ST. LOUIS – Responsive Respiratory has upgraded its popular duration card to include a full range of flow settings available on the company’s regulators, from pediatric to high flow.

US aviation regulators said Monday that thousands of Boeing 737 airplanes would need to be inspected, amid concerns that ...

FNR (regulator of fumarate and nitrate reduction) regulates the transcription of a large array of genes in response to changes in oxygen levels 6. Under anaerobic conditions, FNR binds DNA as a dimer.