Abstract: The present invention concerns methods and compositions involving modified LcrV proteins from Yersinia bacteria. These methods and compositions can be employed to invoke an immune response in a subject against the bacteria, while not suppressing the immune system as much as the native LcrV protein. In certain embodiments, the present invention relates to vaccines, as well as methods to protect a subject against Yersinia pestis and plague. Moreover, the present invention concerns methods and compositions for suppressing a subject's immune system using non-native LcrV polypeptides.

Abstract: A removable cap visor extension having an extension unit with an curved mating edge that mates flush with the lower edge of a cap's hemispherical shell. The extension unit attaches to the permanent visor of a cap or hat either by sliding the visor through slots in the extension unit or by clasping the extension unit to a cap's visor with fasteners.

Abstract: Durable sizing of a textile substrate may be accomplished by applying thereto an aqueous dispersion or emulsion of an unthickened chain extended polyurethane having pendant carboxyl groups, a tertiary amine, a thermosetting aminoplast resin, a catalyst for curing said resin, and an anionic or nonionic surfactant.