1.   Researchers hope that observations of behaviour within the hive will provide an answer.

2.   Researchers hope to develop more accurate testing techniques.

3.   Researchers hope to test the device aboard the new international space station.

4.   Researchers were hoping that the rock samples would give them indisputable proof of life on Mars.

5.   The researchers hope to make the new material more like elephant tusk by streaking it and roughening the texture.

6.   And given the current furor over genetic modification of crops, the researchers hope to develop superior strawberries by using traditional plant-breeding methods.

7.   And researchers hoped, with bated breath, that it might be the answer to breast cancer.

8.   And what researchers hope to find are ways to merge engineering techniques with biology.

9.   Another glitch that researchers hope to fix before the device can go into production is that the machine occasionally sounds a false alarm.

10.   As an alternative, some researchers are hoping to use ultrasound to pinpoint, heat and cauterize internal wounds.