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Aerobic treatment of municipal waste water in a membrane bioreactor was studied for 535 d. Apart from sampling, sludge was retained completely by a submerged hollow fibre membrane with a pore-size of 0.2 microm. The pilot plant comprised an anoxic zone to enable denitrification. The maximum liquid hold-up of the plant was 3.9 m3. In this study the reactor(More)
The insulin-like growth factor (IGF) system plays an important role in postnatal somatic and skeletal muscle growth in pigs. There is little information on the occurrence and distribution of components of the IGF system in postnatal porcine skeletal muscle. IGF-I, IGF receptor 1 (IGF1R) and the IGF-binding proteins IGFBP-1 and -3 in longissimus dorsi and(More)
To investigate the occurrence of components of the insulin-like growth factor (IGF) system during the resorption process of shedding human deciduous teeth, we investigated sections of 13 decalcified and paraffin-embedded deciduous teeth immunohistochemically with antibodies against IGF-I and -II, six IGF binding proteins (IGFBPs 1-6) and the IGF receptors(More)
[(Pyridylmethyl)sulfinyl]benzimidazoles 1 (PSBs) are a class of highly potent antisecretory (H+,K+)-ATPase inhibitors which need to be activated by acid to form their active principle, the cyclic sulfenamide 4. Selective inhibitors of the (H+,K+)-ATPase in vivo give rise to the nonselective thiophile 4 solely at low pH, thus avoiding interaction with other(More)
Locusta migratoria were tethered on a yaw-torque balance and flown in a wind tunnel of diamond-shaped cross-section. Slowly moving stripes of very low luminance were projected onto the two lower faces of the tunnel and a turning stimulus was generated by reversing the direction of stripe movement on one face relative to the other. It was found that the(More)
An efficient synthesis for human-identical lung surfactant protein SP-C is described with a semi-automated solid phase synthesizer using Fmoc chemistry. Double coupling and acetic anhydride capping procedures were employed for synthetic cycles within the highly hydrophobic C-terminal domain of SP-C. Isolation of the protein was performed by mild cleavage(More)
1-Alkyl-4,4-diphenylpiperidines 5-23 are accessible in a simple manner and with attractive yields by regioselective reaction of piperidine derivatives like 1, 2, 3 or particularly 3-aroyl-4-aryl-4-hydroxypiperidines 4, which can be varied widely at the nitrogen atom, with benzene under Friedel-Crafts conditions. The physico-chemical parameters, which are(More)