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This paper presents an analytical theory of the dynamical evolution of ecosystems, which is in good accord with the species turnover distribution in the tropical forest of Barro Colorado Island in Panama.
Lead isotope records from rocks from the floor of the North Atlantic Ocean, combined with a simple quantitative model, are used to reconstruct chemical weathering rates in glaciated regions of North America over the past 550,000 years. This shows that chemical weathering rates in these regions were two to three times lower than today during glacial periods.
An inhibitor of SecinH3 is identified, and shows that treatment of mice with this molecule induces hepatic insulin resistance, an early step in the development of type 2 diabetes.
A spin-polarized 'ferromagnetic' superfluid phase in 3He is thought to arise when a condensate of paired nuclear spins aligns itself along the direction of an applied magnetic field.
A mechanical spin density detector is developed that enables measurements of the spin behaviour in this phase to be performed as the temperature, pressure and magnetic field are varied
A major carbohydrate transporter, GpMST1, is characterized by exploiting the symbiosis between Geosiphon pyriformis and the cyanobacterium Nostoc punctiforme.
A complementary study to that of Famulock et al. shows that feeding SecinH3 to flies inhibits steppke, a cytohesin, leading to growth defects and a block in insulin signalling.