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Weblogs written by scientists are relatively rare, but some of them are proving popular. Out of 46.7 million blogs indexed by the Technorati blog search engine, five scientists' sites make it into the top 3,500. Declan Butler asks the winners about the reasons for their success.
US nuclear weapons scientists are designing a warhead that is meant to be ‘reliable’ without ever having been tested. Geoff Brumfiel asks whether it could renew the United States' ageing stockpile.
An economist believes that a five-year aid effort in a dozen villages across Africa can teach the world how to defeat poverty. Sarah Tomlin reports on the project's progress in Rwanda.
Chromatin, the protein wrapping of the genome, harbours information about how the genes it contains are to be regulated. Are we any closer to deciphering these encoded instructions?
Strongly interacting atomic Fermi gases — useful models for many other exotic forms of matter — enter a superfluid state at low temperatures. The first direct observation of that transition has been made.
A particular talent of herpes simplex virus-1 is that it can lurk unseen in the cells of an infected person for long periods. It turns out that the virus achieves this feat through the agency of a microRNA.
Startling three-dimensional images of nanoparticles have been obtained with an X-ray microscope, showing crystal deformation in unprecedented detail. The trick is not to focus the X-rays, but to diffract them.
Cash reports an occulter design that would achieve the suppression required to distinguish between Earth-like planets and their parent stars. When such an occulter is flown in formation with, say, the James Webb Space Telescope, terrestrial planets could be seen and studied around stars to a distance of at least ten parsecs.
Report of a direct approach for observing the superfluid phase transition in strongly interacting fermionic systems, monitoring sudden changes in the shape of the clouds of 6Li fermions that are prepared with an unequal mixture of two spin components.
The discovery of the resonance in electron-doped superconducting Pr0.88LaCe0.12CuO4-δd (Tc = 24 K) demonstrates that the resonance is a fundamental property of the superconducting copper oxides and therefore must play an essential role in the mechanism of superconductivity.
Coherent X-ray diffraction patterns derived from third-generation synchrotron radiation sources can lead to quantitative three-dimensional imaging of lattice strain on the nanometre scale.
The latency-associated transcript (LAT) of the herpes simplex virus-1 encodes a microRNA that protects neurons from cell death, ensuring maintenance of infection.
One of four papers establishing certain PHD domains as effectors of trimethylated histone H3K4, a chromatin mark generally associated with active transcription. This paper shows that the interaction of H3K4me3 with the PHD finger of an ATP-dependent chromatin remodelling complex is involved in control of Hox gene expression during Xenopus development.
One of four papers establishing certain PHD domains as effectors of trimethylated histone H3K4, a chromatin mark generally associated with active transcription. This paper provides structural insight into the recognition of H3K4me3 by the PHD finger of BPTF, a subunit of the chromatin-remodelling complex NURF.
One of four papers establishing certain PHD domains as effectors of trimethylated histone H3K4, a chromatin mark generally associated with active transcription.
The interaction between H3K4me3 and the ING2 PHD domain is enhanced after DNA damage, recruiting the repressive complex to the promoters of proliferation genes.
One of four papers establishing certain PHD domains as effectors of trimethylated histone H3K4, a chromatin mark generally associated with active transcription. This paper describes the structure of the PHD finger from the tumour suppressor ING2 complexed with H3K4me3.
