Abstract: A dispersion, and a film and optoelectronic devices formed from the dispersion are provided. The dispersion comprising conducting polymer containing particles having a particle size of less than 450 nm, wherein the conducting polymer comprises substituted or unsubstituted, uncharged or charged polymerized units of thieno[3,4-b]thiophene, and wherein a film drop cast from the dispersion has a conductivity from 10?1 to 10?6 S/cm measured using the four point probe method.

Abstract: This invention relates to the use of thermophilic proteases in combination with mesophilic enzymes, including such use in improved methods for isolation, purification, diagnostic, analytical and manufacturing techniques. In particular, the uses and methods of the invention will facilitate improved purification, diagnostic, analytical and manufacturing techniques, especially those in the field of molecular biology, by providing means of removing contamination and/or undesired constituents, and/or by simplifying the techniques.

Abstract: A centralizer system is provided for use in a marine riser system with an insulated pipe, which may be a titanium stress joint. The centralizer system utilizes one or more centralizers mounted such that insulation material is provided in an annulus between the one or more centralizers and the stress joint. A clamp is utilized to axially affix either one centralizer or multiple centralizers to the stress joint. The clamp is comprised of a plurality of sections with cylindrical interior surfaces which are tightened together using fasteners. The cylindrical interior surfaces avoid damage to the insulation layer which may be elastomeric. The clamp and each centralizer have radially directed projections thereon which interlock the clamp with each centralizer. Because the clamp is axially affixed, the centralizer is then also axially affixed. In one embodiment, the centralizer is axially moveable to a desired axial position prior to being interlocked to the tightened clamp.

Abstract: Alkalophilic and thermophilic cellulases having high stability to elevated temperatures and pH have been isolated from an organism of unknown species, which most closely resembles those in the Caldicellulosiruptor genus and which has been called by us, Tok7B.1, These cellulases have been cloned and expressed in a recombinant system, so that they can be produced in quantity. These are particularly useful in treating cellulosic materials including cotton-containing fabrics, as detergent additives, and in aqueous compositions. We also provide genomic DNA which can be used in recombinant expression vectors and expression systems to produce enhanced alkali and/or temperature stability properties in cellulases other than those specifically described.

Abstract: New compounds, represented by the formulae I and II, ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3, are independently C.sub.3 or C.sub.4, substituted or unsubstituted alkylene groups, are useful for catalyzing the reaction between an organic polyisocyanate and a compound containing a reactive hydrogen to form polyurethanes.

Abstract: A device for locking a prosthetic knee joint in full extension includes a housing having a friction shoe adjustably impinging on a standard extension limit link extending through the housing. A latch lever is pivotally secured in the housing and is spring biased toward the extension limit link, with a detent adapted and positioned for engaging the end of the link only during full extension. A release cable or rod extending through the housing is adapted to pull against the spring bias to release the link from the detent, and to reset the latch lever during genuflection to once again engage the link when full extension is again attained. The release rod is manually controlled by an over-center cam toggle, or by a flexible cable extending upward toward the hip and controlled by a similar toggle.