End-product inhibition of acid production in Streptococcus mutans R9 was investigated by measuring effects of varying concentrations of H+ and of undissociated lactic or acetic acids on acid production rates in the pH stat. H+ caused purely uncompetitive inhibition (inhibition constant Kiu 0.018 mmol 1(-1). Lactic acid caused mixed inhibition with inhibition constants of Kiu 4.24 mmol 1(-1) and...

Results Data comprised 14 males, 35 females, mean age 54yrs (31-72), 82 % never-smokers. 44 had post bronchodilator studies. FEF75 or FEF25-75 < 65% were categorised as SAW disease. Pre bronchodilator (Pre-BD) Mean FEV1/ FVC was 78% (70-91%), however Mean FEF75 and FEF25-75 (% predicted) were 34.5% and 43.3% respectively. 6 patients had both, a reversibility in FEV1 >12% and increase by 200ml. ...

Ultrastable Potassium-Ion Storage In article number 2300046, Hsing-Yu Tuan and co-workers propose a Cu3BiS3 anode material with self-healing mechanism for potassium ion storage devices, which shows an electrochemical reconstruction of phase reversibility morphological reversibility.

A relevant application of reversibility is causal-consistent reversible debugging, which allows one to explore concurrent computations backward and forward find a bug. This approach has been put into practice in CauDEr, debugger for the Erlang programming language. CauDEr supports functional, distributed fragment Erlang. However, also includes imperative features manage map (shared among all pr...

Ribonuclease-A (RNase-A) has been a model for studying protein folding and unfolding. However, we show here that its unfolding at neutral pH is complicated by aggregation. Circular dichroism thermal scans showed that reversibility of RNase-A after heating is only about 63%. In accordance with this observation, native-polyacrylamide gel electrophoresis of the sample heated at 75 degrees C showed...