Background Minimising hypoxaemia during submaximal walking tests has a positive effect on exercise capacity and dyspnoea in patients with chronic obstructive pulmonary disease (COPD) on long-term ...

An effort to find an alternative dry-cleaning process gas with low global warming potential (GWP) has been conducted to decrease greenhouse gas emissions. Carbonyl fluoride (COF2) is one of the ...

Oxygen-free bacteria generate energy by turning CO₂ and hydrogen into acetic acid, using a unique sodium-powered mechanism involving the Rnf protein complex. This discovery could aid climate tech and ...

Making the results even more interesting is the microorganisms’ ability to absorb CO 2 from their environment during the acetic acid production process.

In conclusion, the synthesis of acylated intermediates from their corresponding alcohols, phenols, and thiols using microwave irradiation and acetic anhydride is a versatile and efficient method to ...

Significantly, the gas-sensitive mechanism is elaborated, including the effect of heterojunction and oxygen vacancies, and the catalysis of La2O3. The most important thing is that the rapid detection ...

Here, we demonstrate that the carbonyl oxygen of one specific amide bond of an amyloid catalyst formed by Ac–Asn–Phe–Gly–Ala–Ile–Leu–NH 2 (NL6) significantly contributed to activate the substrate ...

Acetic acid bacteria (AAB) are a group of Gram-negative, strictly aerobic bacteria, including 19 reported genera until 2021, which are widely found on the su ...

Oxygen contamination does not necessarily mean a complete failure of the anaerobic process and its effect depends on the contamination rate and on the ability of the anaerobic community to remove the ...

Rohan, D., Canaff, C., Fromentin, E. and Guisnet, M. (1998) Acetylation of Anisole by Acetic Anhydride over a HBEA Zeolite-Origin of Deactivation of the Catalyst ...