Sentence examples for ago methods from inspiring English sources

Some time ago methods for the extraction of pure components were reviewed [ 55].

Until a few years ago, methods used for their detection relied exclusively on physical techniques such as pulsed field gel electrophoresis that measure changes in the size of DNA molecules.

Enron released memos a few weeks ago detailing methods that its traders used to manipulate electricity prices in California in 2000.

Such an approach was out of the question until the development a few years ago of methods for sequencing very large amounts of DNA at low cost.

Research into MFCs is nothing new – they first appeared over a century ago, and methods have advanced in fits and starts ever since.

Ten years ago, transfection methods were used to explore the role of Pfmdr-1 mutations in CQ resistance [28].

But starting about 10 years ago, computer methods originally designed to infer trees from molecular sequence data made their way into the analysis of large linguistic datasets, leading to a resurgence of language trees 9– 15.

The need for such quantification was recognized some time ago, and methods have been designed for (a) identifying distinct data subsets while (b) making use of hierarchical tree organization of the data.

49 But as Rolph recognised 30 years ago, 11 methods for accurately and reliably forecasting the medico-legal risk of clinicians have transformative potential because they could focus and drive prevention.

Imaging companies have attempted to do this, but as I posted a short while ago, their method is inadequate.

Even though the eruptions happened a quarter-billion yeago ago, the method gave them an error of only about 100,000 years.