Abstract: A system for processing data identifying issues including problems comprises an input processor, an issue processor, and a task scheduling processor. The input processor receives issue identification data identifying a type of issue to be processed. The issue processor parses the issue identification data, and associates a product category with the type of issue based on parsed issue identification data. The task scheduling processor assigns a worker to attend to the issue in response to the product category, and initiates generation of a record of the assignment.

Abstract: This invention provides novel compounds for therapy of tumors susceptible to necrosis when an appropriate compound is administered followed by illumination with light of a wavelength absorbed by the compound, the compounds being dihydro porphyrins of the formula, or the corresponding tetra-hydro porphyrins: ##STR1## where n=1 to 3 and each substituent R, the same or different and at the same or different position in its respective substituent phenyl ring, is an hydroxy group.

Abstract: This invention provides novel compounds for therapy of tumors susceptible to necrosis when an appropriate compound is administered followed by illumination with light of a wavelength absorbed by the compound, the compounds being dihydro porphyrins of the formula, or the corresponding tetra-hydro prophyrins: ##STR1## where n=1 to 3 and each substitutent R, the same or different and at the same or different position in its respective substituent phenyl ring, is an hydroxy group.

Abstract: This invention provides for therapy of tumours susceptible to necrosis by a porphyrin when an appropriate porphyrin compound is administered to locate in the tumor followed by illumination with light of a wavelength absorbed by the compound, making use of meso-porphyrins of the formula: ##STR1## where n=1 to 3 and each substitutent R, the same or different and at the same or different position in its respective substituent phenyl ring or other aromatic group replacing that ring, is an hydroxy, amino or sulphydryl group, by association of said meso-porphyrins with a suitable pharmaceutical diluent or carrier.