Walburga Kullmann

Learn More
  • W Kullmann
  • 1989
The dilatometer method was used to study the linear polymerization shrinkage of five different composite filling materials which, although of similar composition, are available in both the self-curing and the light-curing form. The shrinkage of these materials has been recorded for 5 minutes after setting was initiated. While rapid length changes occurred(More)
  • W Kullmann
  • 1982
This study of protease-catalyzed peptide synthesis reports the preparation of the COOH-terminal octapeptide amide of cholecystokinin. The octapeptide was assembled by chemical condensation of two tetrapeptide segments that had been synthesized through the concerted catalytic reactions of several proteases of different specificities. The resulting(More)
Linear estimation theory incorporating statistical a priori knowledge is applied to the inverse problem of reconstructing a static 3-D vector source field from another 3-D vector measurement field. The motivation for this development is to reconstruct 3-D electric current distributions from a set of magnetic measurements. Such a capability would be useful(More)
The proteinase-catalysed synthesis of [Leu]enkephalin and [Met]enkephalin was studied kinetically. N alpha-t-Butoxycarbonyl-amino acids and peptides or their ethyl esters served as acyl donors, and amino acid phenylhydrazides were used as acyl acceptors. Initial-velocity measurements of alpha-chymotrypsin-catalysed peptide synthesis gave rise to kinetic(More)
  • W Kullmann
  • 1990
When stored in water, polymeric filing materials with similar components but different activation systems exhibited similar tendencies in terms of sorption and solution behavior. After 7 days of storage, the uptake of water ranged between 12.1 and 58.9 micrograms mm-3. Solubility varied from 0.3 to 44.3 micrograms mm-3. Within the observation period the(More)