Abstract: The invention provides a method of preventing, delaying, or reversing the progression of Alzheimer's disease by administering an A?42 lowering agent to a mammal under conditions in which levels of A?42 are selectively reduced, levels of A?38 are increased, and levels of A?40 are unchanged. The invention provides methods and materials for developing and identifying A?42 lowering agents. In addition, the invention provides methods for identifying agents that increase the risk of developing, or hasten progression of, Alzheimer's disease. The invention also provides compositions of A?42 lowering agents and antioxidants, A?42 lowering agents and non-selective secretase inhibitors, as well as A?42 lowering agents and acetylcholinesterase inhibitors.

Abstract: A heating generating appliance including an opening device configured to automatically open doors of the appliance. The opening device functions based on user input or can be controlled automatically via the appliance controls to open and/or close the doors of the appliance as desired.

Abstract: The Internal Combustion Engine Efficiency Unit (“ICEEU”) is a device that improves the fuel efficiency of vehicles powered by internal combustion engines, producing low-emission vehicles. It accomplishes this by replacing a single larger engine with two smaller engines, connected together via the ICEEU to produce a single rotary output that powers the vehicle. Both engines are used together when power is needed, but one engine can be shut down when the vehicle is cruising and needs less power to simply maintain its forward momentum. The ICEEU effectively removes the second engine completely from the power train when it is unneeded, so that it does not produce any drag, and also allows the second engine to reenter the power train as needed at any RPM or torque. The ICEEU comprises an open differential and two planetary gear sets to provide the phase shifting ratio that allows for a pair of internal combustion engines to be integrated and separated smoothly throughout operation.

Abstract: A receiver circuit is for processing a received signal which includes at least a first portion and a second portion which repeats the content of the first portion after a repeat interval. For example, the receiver may be for DVB-T signals using COFDM. Two correlation values are measured. The first is between the first portion of the received signal, delayed by the repeat interval plus a difference interval, and the second portion. The second is between the first portion of the received signal, delayed by the repeat interval minus a difference interval, and the second portion. Any difference between the correlation values represents a difference between the receiver sampling rate, and the required sampling rate, and can be used to adjust the receiver sampling rate.

Abstract: A fireplace including a burner disposed to combust a combustible gas and air mixture within a combustion chamber. An exposed panel defining an exposed surface. A touch portion of the exposed surface isolated from heat generated within the combustion chamber to reduce a temperature of the touch portion. A control circuit coupled to the touch portion. The control circuit monitoring the touch portion and driving a component of the fireplace in response to a change at the touch portion.

Abstract: The Internal Combustion Engine Efficiency Unit (“ICEEU”) is a device that improves the fuel efficiency of vehicles powered by internal combustion engines, producing low-emission vehicles. It accomplishes this by replacing a single larger engine with two smaller engines, connected together via the ICEEU to produce a single rotary output that powers the vehicle. Both engines are used together when power is needed, but one engine can be shut down when the vehicle is cruising and needs less power to simply maintain its forward momentum. The ICEEU effectively removes the second engine completely from the power train when it is unneeded, so that it does not produce any drag, and also allows the second engine to reenter the power train as needed at any RPM or torque. The ICEEU comprises an open differential and two planetary gear sets to provide the phase shifting ratio that allows for a pair of internal combustion engines to be integrated and separated smoothly throughout operation.

Abstract: A method and apparatus for a multicarrier receiver circuit with guard interval size detection is described. The invention allows the FFT size and guard interval size to be detected quickly, even in the presence of relatively noisy input signals. The method is robust in noisy environments, and also sufficiently robust to process signals having severe multipath and/or co-channel interference. Moreover, the method is of low complexity, and can be implemented in a VLSI circuit.

Abstract: The invention provides a method of preventing, delaying, or reversing the progression of Alzheimer's disease by administering an A&bgr;42 lowering agent to a mammal under conditions in which levels of A&bgr;42 are selectively reduced, levels of A&bgr;38 are increased, and levels of A&bgr;40 are unchanged. The invention provides methods and materials for developing and identifying A&bgr;42 lowering agents. In addition, the invention provides methods for identifying agents that increase the risk of developing, or hasten progression of, Alzheimer's disease. The invention also provides compositions of A&bgr;42 lowering agents and antioxidants, A&bgr;42 lowering agents and non-selective secretase inhibitors, as well as A&bgr;42 lowering agents and acetylcholinesterase inhibitors.

Abstract: The network security of a radio local loop system is highly desirable to avoid fraudulent use of the network by unauthorised users with appropriate subscriber equipment. For fixed subscribers, the propagation delay between base station and subscriber unit will also remain fixed and, provided this is measured with sufficient accuracy, the distance from the subscriber to the base station can be determined. This can be used as an aid to the authentication of a subscriber. Other signal characteristics which are indicative of the physical location of a purported subscriber can be used, such as directional information. In a system in which propagation delay has to be monitored anyway, for other purposes, such as orthogonal CDMA code synchronisation, or for a TDM system, added security can be obtained without great extra cost.

Abstract: A stabilized composition comprising an organic compound labeled with a .beta.

Abstract: Apparatus for a radio local loop for a telecommunications system, such as a base station (1) or a subscriber station (2), comprises a first unit (4, 13), which includes call processing and speech transcoding/encryption apparatus (8, 17), and which can be housed in a friendly environment, such as within a telephone exchange or within a subscriber's premises, and a comparatively rugged second unit (3, 14) which includes a modem (11, 22) and radio transceiver (12, 23), and which can be housed, in the case of a base station, at a site remote from the exchange, but central for the subscribers which it is to serve, and in the case of a subscriber station on the outside of the subscriber's premises. The first and second units are linked by a base-band link (5, 15).

Abstract: A stabilized composition comprising an organic compound labeled with a .beta.