Jürgen Thieme

TL;DR: The formation of CaCO3 is shown to be far more complex at high supersaturation, i.e. during precipitation, and by means of Ca-activity measurements it can be shown that the polymers are partially incorporated into the forming crystals.

TL;DR: In this paper, the authors used the BESSY storage ring for phase contrast studies with the possibility of quick change between imaging in amplitude and phase contrast mode with the advantage of considerable higher image contrast and reduced radiation dosage compared to amplitude contrast.

TL;DR: Defined, quartz-diluted mixtures of sulfur (S) compounds with different oxidation state (OS) were analyzed by K-edge XANES spectroscopy using linear combination fitting (LCF) and spectrum deconvolution by fitting several Gaussian and arctangent functions (GCF).

TL;DR: From this simplified model system, it is learned that only a small portion of EPS was immobilized via adsorption to goethite, and this fraction formed a coating of subμm spaced protein-rich and lipid-rich domains, i.e., of two materials which will strongly differ in their reactive sites.

TL;DR: In this paper, X-ray absorption near edge structure (XANES) spectra at the sulfur K-edge (E=2472 eV) were compared for bulk soil material, humic and fulvic acid fractions, and different particle size separates from Ah horizons of two arable Luvisols, from an O and a Bs horizon of a Podzol under Norway spruce forest, and from an H horizon of an Histosol (peat bog).