Hi, I'm Tim and this is my pronunciation workshop. Here, I'm gonna show you how English is really spoken. It'll help you to become a better listener and a more fluent speaker. You ready? Come on, ...

This is the second of five long vowel programmes in our series of videos that explore the sounds of English. This is the second of eight other consonant programmes in our series of videos that explore ...

THERE is good reason for believing that gastric hydrochloric acid is neutralized by ammonia formed most probably by urease from circulating urea. This enzyme is present in the mucosa. This mechanism ...

WITH reference to Mr. Elson's observation1 that ascorbic acid at low concentrations inhibits urease activity, and that this inhibition disappears in the presence of cysteine, it is worth noting that ...

Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States Department of Bioengineering, University of Pennsylvania, Philadelphia, ...