1.   It is possible that these correspond to alkaline reflux, which would not be detected using the gold standard test of intraoesophageal pH monitoring.

2.   But such contamination can only be detected using sensitive instruments.

3.   The latest planet was detected using one of the two giant Keck Observatory telescopes atop Mauna Kea on the big island of Hawaii.

4.   The tunnels were detected using techniques developed at least partly at Lawrence Livermore National Laboratory, the weapons lab east of San Francisco.

5.   Wind shear and other dangerous weather cannot be properly detected using current radar technology.

6.   Pesticide poisoning cannot be detected using standard blood tests.

7.   A dozen Chinese swimmers have been detected using performance-enhancing drugs over the past two years.

8.   Hot spots, detected using satellite imagery and usually indicative of fire, are reported to have increased alarmingly in number on the island of Kalimantan in recent days.

9.   The drug is easily detected using conventional urine tests, prompting IOC vice president Dick Pound to question the intelligence of athletes who persisted on using steroids.

10.   This collapse creates the heat and light that Osorio and her team detected using powerful telescopes in Spain, the Canary Islands and Hawaii.