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Extending a normal 24 hours day by four hours is unexpectedly highly disruptive to daily rhythms in gene expression in the blood. Using a paradigm in which human subjects were exposed to a 28 hours day, Archer and colleagues show how this sleep‐altering forced desynchrony protocol caused complex disruption to daily rhythms in distinct groups of genes. Such perturbations in the temporal organisation...
A new method of measuring the concentration of ions in water-based mud filtrates is described. The method, based on ion chromatography (IC), provides a tool to monitor changes in the composition of both major ions and environmentally sensitive ions (e.g., chromium and mercury) in mud filtrate during drilling. Changes in filtrate composition are caused by mud treatment and/or mud/rock interactions;...
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