Abstract: The present invention provides a method for screening a therapeutic and/or prophylactic agent for Alzheimer's disease using at least one index selected from the group consisting of the levels of A? oligomers, BiP, cleaved caspase 4, PRDX4 and ROS in nerve cells or the like whose differentiation has been induced from iPS cells derived from somatic cells of a patient with Alzheimer's disease.

Abstract: A frequency measuring device according to an embodiment of the invention includes a first resonator provided with a first adsorption film, a second resonator provided with a second adsorption film, a first oscillation circuit which is connected to the first resonator and is provided with a first frequency regulator that can regulate the frequency of a first oscillation signal and output the first oscillation signal, a second oscillation circuit which is connected to the second resonator and is provided with a second frequency regulator that can regulate the frequency of a second oscillation signal and output the second oscillation signal, a measuring circuit which can measure the frequencies of the first oscillation signal and the second oscillation signal, and a control circuit which can control the first frequency regulator and the second frequency regulator.

Abstract: In order to specify a handover target of a mobile station regardless of allocation of PSCs, each of femto base stations (10—1-10—3) forming a mobile communication system (1) stores phase differences between one timing for each base station to start generation of SFN and timings for other base stations to respectively start generation of SFN. The phase differences differ from each other. Each base station adds SFN, the generation of which is started at the one timing, to each broadcast information (101—1-101—3) to be wirelessly transmitted. One femto base station (10—1), on which a mobile station (20) camps, specifies as a handover target of the mobile station (20) a femto base station (10—2) starting generation of SFN with a phase difference equivalent to a difference between one SFN1 added to the broadcast information (101—1) and another SFN2 received at the mobile station (20) with respect to the base station itself.

Abstract: A cell identifier allocation method includes: a measurement step of measuring the reception power or propagation loss of the signal received inside the target cell from each of the cells of adjacent base stations in the neighborhood of the target cell; an identification step of identifying the first cell that has the greatest reception power or the lowest propagation loss, from among the cells of the adjacent base stations; and, an allocation step of allocating a cell identifier in which the code sequence number of the synchronization signal is different from that of the first cell and that has not been allocated to any of the cells of the adjacent base stations, to the target cell.

Abstract: To provide a radio communication system capable of reducing the power consumption of a radio base station apparatus. A radio communication system according to the present invention includes a user apparatus (2) and a radio base station apparatus (1) that performs radio communication with the user apparatus (2). The radio base station apparatus (1) monitors a communication status of the user apparatus (2) present within a service area of the radio base station apparatus (1), and when there is no user apparatus (2) performing communication, intermittently transmits a signal that is to be transmitted from the radio base station apparatus (1) to the user apparatus (2). The intermittently-transmitted signal is, for example, a downward common channel signal. Further, the intermittent transmission is performed at regular intervals or random intervals.

Abstract: A mobile station apparatus includes a radio communication unit and a radio resource request unit. The radio communication unit is configured to be able to perform radio communication with a first base station and a second base station. The radio resource request unit requests the second base station to temporarily allocate a radio resource of at least one of an uplink and a downlink when the radio communication unit performs transmission of an uplink signal and reception of a downlink signal with the first base station. Further, the radio resource request unit makes the radio resource allocated by the second base station available for transmission of the uplink signal or reception of the downlink signal with the first base station performed by the radio communication unit.

Abstract: A control apparatus (e.g., a radio base station) for controlling radio communication includes a communication unit for transferring data, an RLC processor for performing radio link control, an RLC parameter adaptive controller for setting a parameter to be used for the radio link control, a broadcast information generator for generating broadcast information including the parameter, and a pseudo incoming call controller for performing pseudo incoming call to a communication terminal (e.g., a mobile terminal) for a plurality of times after the broadcast information is broadcasted to the communication terminal through the communication unit, to measure a success rate of the pseudo incoming calls using responses to the pseudo incoming calls. The RLC parameter adaptive controller updates the parameter according to the success rate measured by the pseudo incoming call controller.

Abstract: An electric circuit includes: a reference signal generation circuit that generates a reference signal based on a first oscillation signal that is an oscillation signal of a first oscillation circuit that vibrates a first vibrator; and a counter circuit that counts a second oscillation signal that is an oscillation signal of a second oscillation circuit that vibrates a second vibrator based on the reference signal, and outputs a count signal, wherein the count signal is a change of the count value in the second oscillation signal.

Abstract: Provided is a structural member including an image holding member that holds a latent image, a developing member that develops the latent image, a first driven side coupling portion that is connectable to a first driving side coupling portion and transmits a driving force to the image holding member, and a second driven side coupling portion that is connectable to a second driving side coupling portion and transmits the driving force to the developing member, wherein the first driven side coupling portion includes a first engaged portion that is engaged with a first engaging portion provided on the first driving side coupling portion at no more than two engagement places, and the second driven side coupling portion includes a second engaged portion that is engaged with a second engaging portion provided on the second driving side coupling portion at three or more engagement places.

Abstract: An internet protocol (IP) network device is provided including a detector adapted to detect an event in the internet protocol (IP) network device. The network device also includes a generator adapted to generate a trap message including event information having information about the detected event. The network device also includes a transmitter adapted to transmit, to an internet protocol (IP) network management device, the trap message including the event information and a first sequence indicator. The network device also includes a timer adapted to measure a time period from a time at which the transmitter transmits the trap information. If the measured time period is equal to or longer than a predetermined time, the generator generates an empty trap message and the transmitter transmits, to the network management device, the empty trap message and a second sequence indicator.

Abstract: A communication system in which a primary base station or a secondary base station communicates with a mobile terminal. The primary base station sends the mobile terminal and the secondary base station an announcement signal which includes identification information for identifying a cell of the primary base station. When receiving the announcement signal, the secondary base station sends the mobile terminal a pseudo announcement signal which includes the identification information and adjacent cell information which includes information for a cell of the secondary base station. When receiving the announcement signal and the pseudo announcement signal, the mobile terminal compares a reception power of the signal received from the primary base station with that of the signal received from the secondary base station, and performs communication with one of the base stations which has higher power.

Abstract: A communication system in which a primary base station or a secondary base station communicates with a mobile terminal. The primary base station sends the mobile terminal and the secondary base station an announcement signal which includes identification information for identifying a cell of the primary base station. When receiving the announcement signal, the secondary base station sends the mobile terminal a pseudo announcement signal which includes the identification information and adjacent cell information which includes information for a cell of the secondary base station. When receiving the announcement signal and the pseudo announcement signal, the mobile terminal compares a reception power of the signal received from the primary base station with that of the signal received from the secondary base station, and performs communication with one of the base stations which has higher power.

Abstract: A wireless communication system according to the present invention is a wireless communication system including a mobile station and a base station that wirelessly communicates with the mobile station. The wireless communication system includes area determination means that determines, based on position information of the mobile station, which of a plurality of areas the mobile station is positioned, in which the plurality of areas are obtained by dividing a cell managed by the base station, and neighbour cell information notification means that notifies the mobile station of neighbour cell information associated with the area where the mobile station is positioned. This configuration enables cell search for the neighbour cell at the mobile station in a smaller area than a cell corresponding to the position of the mobile station.

Abstract: An oscillation circuit includes: a first oscillation circuit and a second oscillation circuit, wherein the first oscillation circuit includes a first input side electrode electrically connected to a first oscillator and a first output side electrode electrically connected to the first oscillator, and the second oscillation circuit includes a second input side electrode electrically connected to a second oscillator and a second output side electrode electrically connected to the second oscillator, wherein the distance between the first output side electrode and the second input side electrode is greater than the distance between the first input side electrode and the first output side electrode.

Abstract: A control apparatus (e.g., a radio base station) for controlling radio communication includes a communication unit for transferring data, an RLC processor for performing radio link control, an RLC parameter adaptive controller for setting a parameter to be used for the radio link control, a broadcast information generator for generating broadcast information including the parameter, and a pseudo incoming call controller for performing pseudo incoming call to a communication terminal (e.g., a mobile terminal) for a plurality of times after the broadcast information is broadcasted to the communication terminal through the communication unit, to measure a success rate of the pseudo incoming calls using responses to the pseudo incoming calls. The RLC parameter adaptive controller updates the parameter according to the success rate measured by the pseudo incoming call controller.

Abstract: In a mobile Communication system which includes a base station controller, a plurality of radio base stations connected to the base station controller, and a mobile station simultaneously communicable with the plurality of radio base stations, the base station controller transfers a packet through the plurality of radio base stations to the mobile station. The mobile Station receives the packet as a plurality of reception packets through the plurality of radio base stations. The mobile station includes a controller that selects, among the plurality of reception packets supplied from the plurality of radio base stations, a best quality packet as a selected packet and sends, if the selected packet includes an error portion, a retransmission request to one of the plurality of base stations that sent the selected packet in order to request retransmission of a correct portion corresponding to the error portion.

Abstract: A mobile station apparatus (3) includes a radio communication unit (30) and a radio resource request unit (31). The radio communication unit (30) is configured to be able to perform radio communication with a first base station (1) and a second base station (2). The radio resource request unit (31) requests the second base station (2) to temporarily allocate a radio resource of at least one of an uplink and a downlink when the radio communication unit (30) performs transmission of an uplink signal and reception of a downlink signal with the first base station (1). Further, the radio resource request unit (31) makes the radio resource allocated by the second base station (2) available for transmission of the uplink signal or reception of the downlink signal with the first base station (1) performed by the radio communication unit (30).

Abstract: In a mobile communication system which includes a base station controller (20), a plurality of radio base stations (30-1, 30-2) connected to the base station controller, and a mobile station (40) simultaneously communicable with the plurality of radio base stations, the base station controller transfers a packet through the plurality of radio base stations to the mobile station. The mobile station receives the packet as a plurality of reception packets as a plurality of reception packets through the plurality of radio base stations. The mobile station includes a processor (46) and a controller (45). The controller selects, among the plurality of reception packets supplied from the plurality of radio base stations, a best-quality packet as a selected packet. The controller sends, if the selected packet includes an error portion, a retransmission request to one of the plurality of base stations in order to request retransmission of a correct portion corresponding to the error portion.

Abstract: A oscillator include: a vibrator that vibrates in a thickness shear vibration mode; a first adsorption film formed in a first region in a first surface of the vibrator; a second adsorption film formed in a second region in a second surface of the vibrator opposing to the first surface; and a substrate with a surface on which the vibrator is erected, wherein the vibrator contacts the substrate in a third surface that is different from the first surface and the second surface.

Abstract: In order to specify a handover target of a mobile station regardless of allocation of PSCs, each of femto base stations (10—1-10—3) forming a mobile communication system (1) stores phase differences between one timing for each base station to start generation of SFN and timings for other base stations to respectively start generation of SFN. The phase differences differ from each other. Each base station adds SFN, the generation of which is started at the one timing, to each broadcast information (101—1-101—3) to be wirelessly transmitted. One femto base station (10—1), on which a mobile station (20) camps, specifies as a handover target of the mobile station (20) a femto base station (10—2) starting generation of SFN with a phase difference equivalent to a difference between one SFN1 added to the broadcast information (101—1) and another SFN2 received at the mobile station (20) with respect to the base station itself.