Sir Robert Christison, who retained remarkable physical vigour and activity down to extreme old age, died at Edinburgh on 23 January 1882.

Nonetheless it does retain notable economic activity.

He had the lean build that enables an elderly man to retain youthful activity.

However, it retains antimicrobial activity at 0.05% in water.

The T. acidophilum intein retains efficient self-splicing activity when expressed in E. coli.

The formerly broad magmatic belt narrowed, retaining vigorous activity only in its westernmost parts.

Of the stereoisomers which retain activity, increasing methylation, especially full methylation to the alpha-form, increases vitamin activity.

Nonetheless it does retain significant economic activity.

This mutant Csn5p retained full activity for preventing Pcu1p and Pcu3p hyperneddylation (Fig.

Current evidence shows that aminoglycosides do retain activity against the majority of Gram-negative clinical bacterial isolates in many parts of the world.