Dogs may have learned to detect threat signs from humans and respond by trying to make peace, according to researcher Sanni Somppi.

The tests are designed to detect subtle ( ' , 細微的) changes in mental function, and involve solving puzzles, recalling words and details from stories, and identifying patterns in collections of letters and symbols.

Wireless devices will transmit signals so as to activate the alarm once something wrong is detected.

The team behind the article and video in question make no mention of the system, or whether or not it detected them.

If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.

Certainly, there are people over age 75 who have had cancers detected by routine screening, and gained several extra years of life because of treatment.

So when a French submarine (潛水艇) detected the device's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.

As a result, some rats are being put to work to detect.

The tests are designed to detect subtle changes in mental function, and involve solving puzzles, recalling words and details from stories, and identifying patterns in collections of letters and symbol.

This gives rats the ability to detect slight smells.

When the rats detect the smell, they stop and rub their legs to indicate a sample is infected.

Economists' failure to detect the problems in time.

Interrupt him whenever he detected a mistake.

The company might be very optimistic, but the ability of their machine to detect deception has not provided credible proof.

The robots are equipped with many sensors to identify conditions of the environment, cattle and food, using thermal and vision sensors that detect changes in body temperature.

When they detect an extended dry period, they divert their metabolisms, producing sugars and certain stress- associated proteins and other materials in their tissues.