While it is known that organic solvent nanofiltration (OSN) can be used to recycle solvents, most commercial membranes do not retain active pharmaceutical ingredients (API) sufficiently to enable solvent recovery in a single stage membrane process.
Yet documents recently filed at Companies House reveal that both still retain active financial interests in the companies, though neither receives any wages.
Clinton, whose spokesmen did not immediately respond to requests for comment on Monday night, severed her formal ties with her family's charities upon announcing her presidential run in April, but her husband, former President Bill Clinton, and their daughter, Chelsea Clinton, retain active roles.
Importantly, we find that H3K9 methylation cannot be maintained at centromeres in sir2Δ clr3Δ double mutants, even though they retain active RNAi.
The secondary source is sugars formed by photosynthesis in developing fruits themselves that remain green for a considerable period and retain active chlorophyll even when they change colour as approaching maturity.
The majority of ERVs are genomic relics of exogenous retrovirus insertions which, although typically degenerated, may retain active promoter and polyadenylation signals encoded within their flanking long terminal repeats (LTRs) [ 19, 20].
Generally, DMSO was determined as the most activity enhancing solvent presumably allowing the PO to retain its active confirmation [Tominaga et al. 2004], whereas the protic solvents ethanol and methanol gave minimal inhibitory effects on activity.
But military experts and officials say they expect the services to have problems retaining active duty and reserve troops if the high tempo of war continues for many months, as President Bush has predicted.
Extensive research has been made to develop packaging strategies to retain the active agent in the polymeric network and control its release.
The processed powders are shown to retain the active boron present in the starting material and maintain their reactivity after extended exposure to an oxidizing environment.
