Abstract: An underwater acoustic projector comprising a pair of spaced apart end walls with an acoustic driver positioned between the end walls, the driver having smaller cross-sectional dimensions than the end walls. The projector has a one piece thin wall inwardly concavely shaped shell with corrugations running in the axial direction surrounding the driver and mechanically coupled to the end walls. An open ended tubular waveguide (pipe) is connected to each end wall of the projector and extend outward forming a flextensional resonant pipe projector.

Abstract: A system for online delivery of documents to Investors, and for receiving voting or tendering instructions from investors including an E-broker system with a database that sends information to and receives information from an Investor through an investor system. The system also includes an electronic dissemination and tabulation system (“EDT”) for securely delivering information directly to or receiving information directly from the investor system in response to an Investor request sent via the E-broker system. Furthermore, the EDT system sends information to the investor system in correspondence to stock holdings of the Investor as recorded in the E-broker system.

Abstract: CD46 (membrane cofactor protein) is a family of human cell surface glycoprotein with cofactor activity for factor I mediated cleavage of complement components C3b and C4b. Disclosed are novel nucleic acid sequences arising from splice variants or derivatives thereof of the structural gene encoding the family of proteins. From these sequences recombinant derived proteins and antibodies thereto can be produced. The proteins can resemble native CD46 isoforms or comprise new permutations of exons within the structural gene. The nucleic acids, proteins and antibodies have utility as probes, diagnostic reagents and therapeutic agents.

Abstract: An underwater acoustic projector comprising a pair of spaced apart end plates with an acoustic driver positioned between the end plates, the driver having smaller cross-sectional dimensions than the end plates. The end plate's edges are secured to an outer one-piece thin walled shell that provides a waterproof enclosure for the driver. That thin walled shell has a concavely inwardly bent surface between the end plates and a plurality of axially extending corrugations to provide a predetermined axial compliance and radial-to-axial transformation ratio.

Abstract: The photosensitivity of a photomultiplier dynode to white light or infrared radiation is greatly reduced by coating the dynode with a layer of an alkali halide material having good secondary electron emission characteristics. A method of applying the coating to the dynode is also described.