Abstract: An optimization system optimizes groups of providers for a given population of users. The optimization system includes various engines such as a source interface engine, selection engine, and group score engine. The source interface engine receives information to be used in constrained optimization from server computers and stores the information in databases. The selection engine selects groups of providers from a set of all available providers. The group score engine generates a score for each group of providers. The selection engine continues to iteratively select groups of providers to minimize the generated score. The selection engine can use hard constraints, for example, requiring that a certain type of provider be included in all selected groups, or soft constraints, for example, requiring that a certain number of providers be included based on a size of the given population.

Abstract: An optimization system optimizes groups of providers for a given population of users. The optimization system includes various engines such as a source interface engine, selection engine, and group score engine. The source interface engine receives information to be used in constrained optimization from server computers and stores the information in databases. The selection engine selects groups of providers from a set of all available providers. The group score engine generates a score for each group of providers. The selection engine continues to iteratively select groups of providers to minimize the generated score. The selection engine can use hard constraints, for example, requiring that a certain type of provider be included in all selected groups, or soft constraints, for example, requiring that a certain number of providers be included based on a size of the given population.

Abstract: The instant application covers the use of a heat-stable composition of matter useful for modifying the rheological and suspension properties of non-aqueous fluid systems containing finely divided solid particles. The heat-stable composition of matter comprises a creamy paste of finely divided particles of an emulsifiable polyethylene wax suspended in a sulfated-sulfonated castor oil solution.

Abstract: A self-activating organoclay rheological additive for non-aqueous fluid systems has been produced comprising a homogeneous mixture of an organically modified montmorillonite clay and two solid waxes, the waxes being the activators for the organic clay. The two waxes are finely divided particles of glyceryl tri-12-hydroxystearate and an amide wax having the formula ##EQU1## where n is from 2 to 18, HSA is the acyl radical of 12-hydroxystearic acid, R is hydrogen or the acyl radical of 12-hydroxystearic acid.The montmorillonite clay is modified with a quaternary ammonium compound.