[Quality circles in German ambulatory care: results of a continuous documentation in the regions of Bremen, Saxony-Anhalt, Schleswig-Holstein and Westphalia-Lippe 1995-2007].

Background: Quality circles (QC) are viewed as one of the most important tools of quality improvement and continuing education in ambulatory care. Yet, little is known about the quality of QC work.

Methods: From 1995 to 2007, an external assessment of QC work took place at four regional Associations of Statutory Health Insurance (SHI) Physicians.

Gelation of casein-whey mixtures: effects of heating whey proteins alone or in the presence of casein micelles.

The aim of the present work was to investigate the role of whey protein denaturation on the acid induced gelation of casein. This was studied by determining the effect of whey protein denaturation both in the presence and absence of casein micelles. The study showed that milk gelation kinetics and gel properties are greatly influenced by the heat treatment sequence.

Kinetics of human erythrocyte glucose-6-phosphate dehydrogenase dimers.

The steady-state kinetics of human erythrocyte glucose-6-phosphate dehydrogenase (D-glucose-6-phosphate: NADP+ 1-oxidoreductase, EC 1.1.1.