Abstract: Transient polymers and compositions comprising such polymers are described. The polymers are copolymers of phthalaldehyde and one or more additional aldehydes and can degrade/decompose upon exposure to a desired stimulus, like light, heat, sound, or chemical trigger. Films comprising the copolymers and devices comprising surfaces coated with the film are also described.

Abstract: A wheelchair safety device comprises a brake lever, four link levers, an upper brake plate, a brake wheel, a lower brake plate, a parking wheel, and an angularly adjustable mounting plate. One end of the first, the second and the third link levers is respectively articulated at the brake lever, another end of the first and the second link levers are articulated with one end of the fourth link lever. Another end of the fourth link lever is articulated at the upper brake plate and another end of the third link lever is articulated at the lower brake plate. One end of the upper and the lower brake plates is respectively articulated at the angularly adjustable mounting plate, and another end thereof is mounted with the brake wheel and the parking wheel, respectively. The brake wheel and the parking wheel respectively act on the wheelchair.

Abstract: A system and method is provided for monitoring and controlling the pressure inside of an orthosis or orthotic brace. The system can measure the pressure inside of the brace using a force sensor and then, using an air bladder placed between the outside wall of the orthotic brace and the body of the person wearing the brace, deflate or inflate the air bladder as required to maintain a constant pressure between the brace and the body.

Abstract: A wheelchair safety device comprises a brake lever, four link levers, an upper brake plate, a brake wheel, a lower brake plate, a parking wheel, and an angularly adjustable mounting plate. One end of the first, the second and the third link levers is respectively articulated at the brake lever, another end of the first and the second link levers are articulated with one end of the fourth link lever. Another end of the fourth link lever is articulated at the upper brake plate and another end of the third link lever is articulated at the lower brake plate. One end of the upper and the lower brake plates is respectively articulated at the angularly adjustable mounting plate, and another end thereof is mounted with the brake wheel and the parking wheel, respectively. The brake wheel and the parking wheel respectively act on the wheelchair.

Abstract: An apparatus, system, and method for displaying and transmitting information in which a rotatable member has a display end upon which a plurality of light emitting devices (LEDs) are disposed in a linear manner normal to a plane of rotation. The invention also includes an infrared transmitter (IRT), for communicating energize instructions conforming to a message to be presented; and an infrared receiver (IRR), for receiving the energize instructions and responsively energizing specific light emitting devices such that the message is presented by the rotating light emitting devices.

Abstract: Disclosed herein are methods and compositions for enhancing the immunogenicity of a preselected protein or peptide antigen in a mammal. Immunogenicity is enhanced by fusing the preselected antigen to an immunoglobulin heavy chain constant region to produce an Fc-antigen fusion protein. The Fc-antigen fusion proteins bind Fc receptors on the surface of antigen presenting cells, thereby targeting the antigen to the antigen presenting cells in the mammal. In addition, disclosed is a family of adjuvants, for example, an Fc-adjuvant fusion protein, for use in combination with the Fc-antigen fusion proteins to enhance or modulate a particular immune response against the preselected antigen.

Abstract: An apparatus, system, and method for displaying and transmitting information in which a rotatable member has a display end upon which a plurality of light emitting devices (LEDs) are disposed in a linear manner normal to a plane of rotation. The invention also includes an infrared transmitter (IRT), for communicating energize instructions conforming to a message to be presented; and an infrared receiver (IRR), for receiving the energize instructions and responsively energizing specific light emitting devices such that the message is presented by the rotating light emitting devices.