A symptom was not registered if it had persisted unchanged longer than three months.
It is difficult to say with confidence whether the effect of the training in Sep 08 persisted unchanged Our best estimate is that the training continued to have some effect, but that it had declined over the intervening six months.
Wöhler and Liebig showed that a certain group of atoms persisted unchanged through a series of important related compounds, including benzoic acid.
The fact that homeoboxes apparently operate independently of selection (since they have persisted unchanged for hundreds of millions of years) indicates that, to an important extent, form is independent of function.
Behind their reappearance lies an extraordinary story, a tale of flowers that have persisted unchanged for centuries and of the unlikely band of experts who united to rescue them from extinction.
RESULTS: The rim of FDG accumulation was seen on the first post-treatment scan obtained 1-3 mo after therapy and persisted unchanged over the 2-26 mo follow-up period.
The company, however, also noted that "challenges persisted unchanged" in the region as revenues declined by 1.4% to to €3.8 billion ($5 billion) and service revenues specifically were down by nearly 10% to $4.1 billion, as the carrier sits tight and waits for a marketing deal with Apple to kick in this year.
The 18-column species remained alive and well, living in the clear coralline seas of what is now the American Midwest, while their offshoot, with 17 columns, persisted unchanged on the muddier sea floors in New York and down through what are now the Appalachian Mountains.
Embolisation of the right arteriovenous malformation with two coils was not complicated but the cough persisted unchanged after the procedure.
In normal cells the phosphorylation of Akt was highest at 30 min but persisted unchanged up to 24 h.
This movement pattern persisted unchanged over several years, which is inconsistent with a neurodegenerative disorder such as Parkinson's disease.
