Abstract: Psoriasis is treated with an infrared absorbing compound, preferably but not exclusively by occluding psoriatic lesions with a plastic film containing at least one compound which strongly absorbs infrared radiation in the range of from about 700 to about 1400 nanometers. The invention also includes a dressing for treating psoriasis incorporating one or more infrared blocking compounds. The infrared absorbing materials are preferably but not necessarily dispersed uniformly through a flexible carrier transparent to visible light, such as polyvinyl chloride (PVC) film or poly (methyl methacrylate) (PMMA) film, by known techniques of solution casting or dying. The materials can be used as the sole therapeutic agent, or as an adjunct to local and/or systemic treatments for psoriasis.

Abstract: Compositions useful for making electrical conductor patterns on a nonconductive substrate, the compositions comprising finely divided Pd/Ag and inorganic binder. The binder is free of bismuth oxide to reduce staining at conductor/resistor interfaces, and comprises certain proportions of glass, copper oxide, and pyrochlore-related oxide (lead ruthenate and/or copper bismuth ruthenate); lead oxide is optional. Despite the absence of bismuth oxide, aged adhesion is good, as is solder acceptance.

Abstract: Compositions useful for making electrical conductor patterns on a nonconductive substrate, the compositions comprising metal powder and 1-5% glass-free inorganic binder. The binder consists essentially of certain amounts of bismuth oxide and oxides of copper and/or lead, and optionally MnB.sub.2 and/or MnO.sub.2. The metal powder is either silver or a mixture of silver with a second metal powder; the second metal powder is Pt, Pd, Au, or an alloy of Cu with one or more of Pt, Pd, Au, and Ag. The weight ratio of Ag to other metals is at least 17/1. These compositions are useful for making conductor patterns on substrates, which patterns have good adhesion to the substrate, both initially and after thermal aging (e.g., 150.degree. C. for 48 hours).