New Mode of Cell Communication Discovered

sumsung submitted, created time 11 months 4 weeks (sciencenow.sciencemag.org)

Like teenagers, cells in our bodies constantly chatter back and forth. But instead of zapping text messages, they relay signals with molecules. Now, researchers have discovered a surprisingly tiny new messenger in worms: protons.

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New brain cells listen before they talk

jimmy submitted, created time 1 year 2 months (www.eurekalert.org)

Newly-created neurons in adults rely on signals from distant brain regions to regulate their maturation and survival -- which has implications for using adult stem cells to replace those lost by trauma or neurodegeneration.

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Small animal imaging facility is big boon to research

sumsung submitted, created time 1 year 4 months (www.eurekalert.org)

When powerful magnets line up the body's protons before radiofrequency waves can grab their attention away, it's called spin physics.

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Mobile telephone masts 'do not cause illness'

bianjie submitted, created time 1 year 5 months (www.bioedonline.org)

There is no evidence that short-term exposure to signals from mobile telephone masts causes illness, say British researchers who have carried out a trial involving dozens of people who claim to be sensitive to the signals.

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Profiling phylogenetic informativeness

JeffTownsend submitted, created time 1 year 6 months (www.informaworld.com)

This article lays out a method for describing the utility of a marker for phylogenetic inference during specified historical epochs. It may be useful for phylogenetic experimental design (i.e. what characters or character sets to sample) or for understanding the contribution of different partitions of your data (e.g. genes) to the resolution you achieve.

Submit comment | Blog It | Email It | Keywords: Character information noise phylogeny power rapid radiation signal taxon phylogenetic analysis phylogenetic trees phylogenetic models