Reader task: a lab or clinic staff member or student looking at a urea tube or plate and deciding what a pink or yellow result means. This page is general product and laboratory-reference information, ...

This is the first of eight voiceless consonant programmes in our series of videos that explore the sounds of English. This is the first of eight other consonant programmes in our series of videos that ...

The name Isaias, a Spanish form of Isaiah, is traditionally pronounced "ee-sah-EE-ahs," with the stress on the third syllable. It can be broken into syllables as "ee • sah • EE • ahs," and Spanish ...

Worcestershire sauce, gyro, dachshund … wait, how do you actually say those? If you’ve ever confidently ordered a bowl of pho, talked about your favorite niche hobby or tried to pronounce açaí at a ...

This pronunciation guide has been developed by USP and approved by the USAN Council to facilitate pronunciation of USAN, and was revised at the USAN Council meeting, June 13, 2025, to facilitate ...

The apparent enzymatic hydrolysis of urea has been detected in whole blue-green algae and in cell extracts. Urease is present as an intracellular component in cultures in which no bacterial ...

The urease activity of bacteria can readily be determined by inoculating the organisms on to a number of bacteriological media1,2. Seneca et al.6,7 reported that urease activity was observed in ...

eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article. Neither ...

Hurricane Isaias has made landfall -- but there was much confusion about the name.