The survey detected the use of ketamine as a recreational drug by clubbers long before official agencies picked it up.

And those surveys, along with the earlier movie ratings, detected a clear pattern of enthusiasm among one age group: young teenagers, particularly males.

It is a difference so small that it could easily be below what surveys can detect.

Mr. Lara said he did not intercept data making its way through those networks nor try to connect to the access points his survey detected.

Their findings are not normally made public, and it was not known whether previous surveys had detected similar vacancy rates.

And in some areas, like education, local control can be an obstacle to the very equality the survey detected.

The survey, conducted in the first few weeks in April, also detected strong evidence of a tightening of credit.

The survey detected 8400 sources to a limiting non-uniform 1-sigma noise level in the range 30 to 60 mJy/beam.

A later survey by the Hood detected a few more jellies near there, though they didn't seem interested in communicating.

The survey detected a number of other trends.