Abstract: The present invention pertains to novel 7,9-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.

Abstract: The present invention pertains, at least in part, to novel 9-substituted minocycline compounds. These minocycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.

Abstract: The present invention pertains, at least in part, to novel 7-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.

Abstract: The present invention pertains to novel 7,9-substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.

Abstract: A substitute ground surface material comprising sand coated or treated with a binder comprising a free flowing extender oil with a viscosity transition below -5.degree. F., with a synthetic polymeric material such as styrene-butadiene-styrene co-polymer dissolved or dispersed in the oil. The binder comprises approximately 2% of the material which is an inert, discreet material permanently capable of being raked when laid in a layer upon a substrate. The material is laid on a suitable porous base to form a sports surface for a horse running track or the like.

Abstract: A ground surface material comprising a particulate base material such as sand which is coated with a binder comprising a free flowing extender oil, typically an aromatic oil, having a synthetic polymeric material such as styrene-butadiene-styrene copolymer dissolved or dispersed therein. The material can be laid on a suitable porous base to form a sports surface for a horse running track or the like.

Abstract: The invention relates to a substitute soil material for laying as a sports surface for example a horse-race track. The material may be a sand or other fine granular material with a binder comprising a styrene-butadiene-styrene copolymer dispersed or dissolved in an oil which preferably is a soft grease at ordinary climatic temperatures. When laid, the surface may be maintained by periodic raking.

Abstract: The invention relates to a substitute soil material for laying as a sports surface for example a horse-race track. The material may be a sand or other fine granular material with a binder comprising a polymeric material dispersed or dissolved in an oil which preferably is a soft grease at ordinary climatic temperatures. When laid, the surface may be maintained by periodic raking. Suitable polymeric materials are e.v.a. polystyrene, nylon or p.v.c.

Abstract: The invention relates to a substitute soil material for laying as a sports surface for example a horse-race track. The material may be a sand or other fine granular material with a binder comprising a polymeric material dispersed or dissolved in an oil which preferably is a soft grease at ordinary climatic temperatures. When laid, the surface may be maintained by periodic raking. Suitable polymeric materials are e.v.a. polystyrene, nylon or p.v.c.