Abstract: Multi-axial prosthesis assemblies that include a resilient closed undulating member are used to provide vertical and rotational movement for lower limb prostheses. A shaft is located through a resilient bumper, with a first prosthetic member is fixedly attached to the shaft and engages a first surface of the undulating member, and a second prosthetic member comprises a lumen to movably receive the shaft. The prosthetic members are engaged to the resilient bumper with projections that are located in the recesses of the resilient bumper and the prosthetic members and the bumper are configured so that the projections from each member are offset from the projections of the other member, which results in an undulating appearance to the outer surface of the resilient bumper.

Abstract: A hybrid lens having a planar bottom surface, a curved top surface, a plurality of refractive/reflective elements, the plurality of refractive/reflective elements being transparent and having a curved surface, and a plurality of diffractive elements.

Abstract: A system and method for at least partially concealing a communications antenna without preventing the communications antenna from receiving electromagnetic signals, the system and method comprising a composite material that allows electromagnetic signals to be transmitted therethrough without significant degradation and which may function as a component of a building or structure in which a communications antenna is to be located or to which a communications antenna is to be attached.

Abstract: Systems and methods for heating a fluid having a heating element housing with a heating element to heat a fluid. The heating element housing may include an opening capable of receiving a fluid transporter, e.g., a needle, a syringe, a vial, or an intravenous (IV) tube, among others, that transports the fluid for heating by the heating element. The heating device may also include a power source housing coupled to the heating element housing comprising a power source for providing heat to the heating element. The fluid is heated while flowing through the fluid transporter.