7 articles in this week's Nature Journal

1. The structural basis for membrane binding and pore formation by lymphocyte perforin
2. Stem cells: The intestinal–crypt casino
3. Biogeochemistry: Phosphorus and the gust of fresh air
4. Quantum tunnelling of the magnetization in a monolayer of oriented single-molecule magnets
5. The proteasome antechamber maintains substrates in an unfolded state
6. On-line, voluntary control of human temporal lobe neurons
7. Chronic high-fat diet in fathers programs β-cell dysfunction in female rat offspring