1.   Another ray of hope comes from stem cell transplants, a variant of bone marrow transplants.

2.   And with it comes a ray of sunlight.

3.   -Cloudy skies may make the air temperature cooler, but UV rays are still coming through the clouds.

4.   One ray of hope came in the form of a teaser.

5.   They found that the rays came mainly from the Western sky, were weaker at the equator and were strongest at higher elevations.

6.   For now, however, researchers would like to know where the rays come from, their composition and their energies.

7.   One ray of hope came from a dinner meeting with Chief Secretary Chan on Thursday, which ended in the promise of a later meeting in Beijing.