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So, it came as a surprise when, according to the Union of International Associations, the city ranked fifth in the world for number of international meetings hosted in 2010. Singapore was first, followed by Brussels, Paris and Vienna.

2012-02-07

 Seoul South Korea meeting Union of International Associations
When a plant is under attack it releases a gas which warns neighbouring plants to protect themselves.

2012-02-07

 plant communication gas danger attack language
They say the lengths of tiny pieces of DNA called telomeres indicate whether a young creature is likely to live long into old age. ... Everything that is made up of living cells contains chromosomes: the genetic code that makes us what we are. At the ends of each chromosome lie the telomeres. They have been likened to the caps on the ends of shoelaces - they stop things from unravelling. Over time they wear down - and when they do, the DNA...

2012-01-10

 telomere longevity health chromosome age

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