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Carbon stars in local group dwarf galaxies: C and O abundances

We present abundances of carbon and oxygen as well as abundance ratios 12C/13C for a sample of carbon stars in the LMC, SMC, Carina, Sculptor and Fornax dwarf galaxies. The overall metallicities in these dwarf galaxies are lower than in the galactic disc. The observations cover most of the AGB and we discuss the abundance patterns in different regions along the AGB. The abundances are determined f

Investigation of the Effects of Leaching on the Scaling Resistance of Concrete

Damage to the concrete surface can be observed at the waterline of hydraulic structures in fresh water bodies in cold climates. Gradual deterioration of the concrete surface leads to exposure of coarse aggregate. Superficial damage at the waterline is commonly assumed to be caused by drifting ice floes. However, deterioration of concrete at the waterline may also involve leaching and frost action.

Hopp, trots allt

This article discusses the German-Swedish author Peter Weiss and his book "Die Ästhetik des Widerstandes" (The Aesthetic of Resistance), and argues for hope, after all.