Abstract: The present disclosure provides siRNA that suppresses proliferation of new coronaviruses (SARS-CoV-2). The siRNA disclosed herein includes: a sense strand; and an antisense strand. The sense strand includes a target sequence comprising 19 to 23 bases in which a base at a 5? terminal is guanine (G) or cytosine (C), and an overhang comprising 2 to 4 bases added to a 3? terminal side of the target sequence. The antisense strand includes a sequence complementary to the target sequence, and an overhang comprising 2 to 4 bases added to a 3? terminal side of the complementary sequence. Here, at least a part of the target sequence contains at least a part of a base sequence encoding a signal peptide region of a spike protein (S protein) of SARS-CoV-2.

Abstract: Provided is a selective method for inducing differentiation from pluripotent stem cells to enterocyte-like cells. Also provided is an excellent enterocyte-like cell expressing drug-metabolizing enzymes and drug transporters. More specifically, provided is an enterocyte-like cell having properties closer to those of primary enterocytes, which are difficult to acquire. The foregoing is achieved by adding an ALK5 inhibitor (SB431542), Wnt3a, and EGF to a culture system of definitive endoderm cells obtained by differentiation induction from pluripotent stem cells and extending a culture time. The foregoing is also achieved by introducing CDX2 gene and/or FOXA2 gene into the pluripotent stem cells or the definitive endoderm cells. The foregoing is also achieved by overlaying a basement membrane matrix on the enterocyte-like cells.

Abstract: Provided is a selective method for inducing differentiation from pluripotent stem cells to enterocyte-like cells. Also provided is an excellent enterocyte-like cell expressing drug-metabolizing enzymes and drug transporters. More specifically, provided is an enterocyte-like cell having properties closer to those of primary enterocytes, which are difficult to acquire. The foregoing is achieved by adding an ALK5 inhibitor (SB431542), Wnt3a, and EGF to a culture system of definitive endoderm cells obtained by differentiation induction from pluripotent stem cells and extending a culture time. The foregoing is also achieved by introducing CDX2 gene and/or FOXA2 gene into the pluripotent stem cells or the definitive endoderm cells. The foregoing is also achieved by overlaying a basement membrane matrix on the enterocyte-like cells.

Abstract: Provided is a method of stably maintaining and culturing “hepatoblast-like cells” generated during a differentiation-inducing process from pluripotent stem cells to hepatocytes. The present invention also provides a culture product obtained by the culture method. The hepatoblast-like cells can be maintained and cultured stably by bringing a laminin into contact with the hepatoblast-like cells. The method of the present invention which uses a laminin makes it possible for the first time to culture, maintain, and proliferate the hepatoblast-like cells. Desired mature cells such as mature hepatocytes and bile duct epithelial cells can be generated in a short time period and can be acquired at a desired timing by maintaining the hepatoblast-like cells. Further, the resulting cultured hepatoblast-like cells were demonstrated to be capable of being induced to differentiate into mature hepatocytes, mature cholangiocytes, bile duct epithelial cells, and the like.

Abstract: To provide a broadcast receiving apparatus including an AM detector, an AM noise detector, an FM detector, an FM noise detector and a noise determining unit. The AM detector performs AM detection on an IF signal in airwaves received by a receiving antenna that receives incoming airwaves to acquire an AM detection signal. The AM noise detector detects noise components in the AM detection signal. The FM detector performs FM detection on the IF signal to acquire an FM detection signal. The FM noise detector detects noise components in the FM detection signal. The noise determining unit determines a noise status of a broadcast signal based on detection results acquired by the AM noise detector and the FM noise detector.

Abstract: To provide a broadcast receiving apparatus including an AM detector, an AM noise detector, an FM detector, an FM noise-level detector, and a threshold control unit. The AM detector performs AM detection on a broadcast signal in airwaves received by a receiving antenna that receives incoming airwaves to acquire an AM detection signal. The AM noise detector detects a signal portion, in which the AM detection signal exceeds an AM noise threshold, as an AM noise component. The FM detector performs FM detection on the broadcast signal to acquire an FM detection signal. The FM noise-level detector detects an FM noise level of the FM detection signal. When the FM noise-level detector detects the FM noise level of the FM detection signal, the threshold control unit changes setting of the AM noise threshold in the AM noise detector based on the FM noise level of the FM detection signal.

Abstract: An antenna device that is placed adjacent to an antenna 5 for receiving a high frequency signal and includes an impedance matching circuit 6 and an amplifying circuit 21 to which a DC control voltage is supplied from a demodulating device 3 through a feeder cable 4 for transmitting the high frequency signal to the demodulating device 3, wherein the DC control voltage is set to a value for adjusting a frequency characteristic of the impedance matching circuit 6 within an allowable range corresponding to a received frequency. A small and inexpensive antenna device having a simple circuit configuration and good reception sensitivity is implemented.

Abstract: A noise removing apparatus includes a variable filter with a changeable cutoff frequency and a variable phase shifter with a changeable cutoff frequency, and switches between the variable filter and the variable phase shifter according to a result of detection of noise component. The variable filter has a circuit configuration corresponding to a function in which a transfer function of second or higher degree is represented as a product of primary factors. The transfer function of second or higher degree is calculated based on the phase characteristics of the variable phase shifter.

Abstract: Even when an input is weak, an antenna amplifier device may achieve a high sensitivity while reducing a noise factor (NF). The antenna amplifier device includes an amplification circuit 7 for amplifying a high frequency signal received by an antenna A, and an NF matching circuit 5 provided between the amplification circuit 7 and the antenna A of which input impedance has a capacitance, the NF matching circuit 5 for switching the input impedance to the amplification circuit 7 in accordance with a reception frequency. The NF matching circuit 5 includes a plurality of coils having different inductances, and at least one switch SW for connecting one of the coils, selected in accordance with the reception frequency, between the antenna A and the amplification circuit 7. A step-up coil SC is interposed between the NF matching circuit 5 and the amplification circuit 7.

Abstract: To provide a broadcast receiving apparatus including an AM detector, an AM noise detector, an FM detector, an FM noise-level detector, and a threshold control unit. The AM detector performs AM detection on a broadcast signal in airwaves received by a receiving antenna that receives incoming airwaves to acquire an AM detection signal. The AM noise detector detects a signal portion, in which the AM detection signal exceeds an AM noise threshold, as an AM noise component. The FM detector performs FM detection on the broadcast signal to acquire an FM detection signal. The FM noise-level detector detects an FM noise level of the FM detection signal. When the FM noise-level detector detects the FM noise level of the FM detection signal, the threshold control unit changes setting of the AM noise threshold in the AM noise detector based on the FM noise level of the FM detection signal.

Abstract: To provide a broadcast receiving apparatus including an AM detector, an AM noise detector, an FM detector, an FM noise detector and a noise determining unit. The AM detector performs AM detection on an IF signal in airwaves received by a receiving antenna that receives incoming airwaves to acquire an AM detection signal. The AM noise detector detects noise components in the AM detection signal. The FM detector performs FM detection on the IF signal to acquire an FM detection signal. The FM noise detector detects noise components in the FM detection signal. The noise determining unit determines a noise status of a broadcast signal based on detection results acquired by the AM noise detector and the FM noise detector.

Abstract: A heating line pattern structure is provided, in which the effect of the heating lines of a defogger on an antenna for a TV broadcast especially for a digital TV broadcast may be decreased. The defogger is structured by arranging heating lines between bus bars on both sides. The portion of an uppermost heating line in proximity to the monopole antenna are folded rectangularly at a regular interval to form a meander shape. One lateral heating line is extended under the meander-shaped heating line portion, and is connected to a vertical heating line to which four lateral heating lines are connected together.

Abstract: An object of the invention is to provide a receiving apparatus in which multipath noise can be reduced. In a diversity receiving apparatus (20), a delay amount of phase shifters (24a, 24b) is changed to reduce a multipath level (Mdc) detected by a multipath detecting unit (33). The multipath detecting unit (33), signal processing parts (23a, 23b), and a combiner (25) are provided to obtain a received signal based on received outputs of a plurality of antennas (21a, 21b) when receiving a radio wave signal modulated by a modulating method, such as an FM, in which no change in amplitude is produced. Therefore, the radio wave signal can be received in a better condition than when received using a single antenna. The multipath detecting unit (33) detects a change in amplitude of the received signal as the multipath level (Mdc).

Abstract: A diversity receiver is provided. A first adaptive array unit includes a first combiner that obtains a first combined signal comprised mainly of a first wave of received signals by combining received signals of a plurality of antennas with using first complex weights. A second adaptive array unit includes a first component subtractor that subtract the first combined signal from the respective received signals and a second combiner that obtains a second combined signal comprised mainly of a second wave of the received signals by combining the received signals and outputs of the first component subtractor with using second complex weights. The first combiner includes a delay wave suppressing unit that generates a suppressed signal in which components of the second wave is suppressed from the first combined signal and a first weight coefficient operating unit that determines the first complex weights by complex correlation operation between outputs of the delay wave suppressing unit and the received signals.

Abstract: An antenna device that is placed adjacent to an antenna 5 for receiving a high frequency signal and includes an impedance matching circuit 6 and an amplifying circuit 21 to which a DC control voltage is supplied from a demodulating device 3 through a feeder cable 4 for transmitting the high frequency signal to the demodulating device 3, wherein the DC control voltage is set to a value for adjusting a frequency characteristic of the impedance matching circuit 6 within an allowable range corresponding to a received frequency. A small and inexpensive antenna device having a simple circuit configuration and good reception sensitivity is implemented.

Abstract: An object of the invention is to allow receiving a radio wave signal in a comfortable manner by overcoming defects in technique and performance according to the related art in reducing a multipath noise by use of an adaptive digital filter. In a multipath noise reducing apparatus (20), an A/D converter (24) converts a received signal from an analog signal to a digital signal, and an ADF (21) carries out a digital signal processing to reduce the multipath noise. At a time of determination of an overmodulation by an overmodulation determining unit (22), an operation of the ADF (21) is turned off to prevent deterioration in a distortion property. Therefore, the multipath noise reduction and prevention of the corresponding deterioration in the distortion property at a time of the overmodulation can be achieved at the same time.

Abstract: The enclosure of the receiver device is divided into an antenna vicinity enclosure 1 and a demodulation unit enclosure 2, which are connected by a single transmission cable. By disposing the antenna vicinity enclosure 1 in the vicinity of the antenna, the high frequency feeder cable drawn from the antenna to the antenna vicinity enclosure 1 can be shortened. The effect of pulse noise and high frequency noise picked up by the conventional feeder cable can therefore be reduced. Furthermore, the length of the feeder cables in a quantity corresponding to the number of antennas is then reduced and the wiring space for the feeder cable can be reduced. The demodulation unit enclosure 2 is disposed spaced apart from the antenna, and the wiring space for the transmission cable can be greatly reduced in comparison with a case where a plurality of feeder cables are wired in the wiring space.

Abstract: When configuring a film antenna for receiving a circular polarized wave, at least one loop antenna is formed on a transparent plastic film and, at the same time, a non-powered element constituted by a wire-shaped conductor independent from the antenna conductor configuring the loop is arranged near this loop antenna. The non-powered element arranged on the side of the loop antenna is configured by a first part and a second part. The first part is made close to the loop antenna in a substantially parallel state. When a monopole antenna is used in place of the loop antenna, by combining this with a wire-shaped conductor orthogonal to this, it becomes possible to receive a circular polarized wave by a configuration providing a power transfer part between the two. It is also possible to configure a composite antenna by mounting another antenna on the transparent plastic film. This antenna can be used as an antenna of a navigation system.

Abstract: A heating line pattern structure is provided, in which the effect of the heating lines of a defogger on an antenna for a TV broadcast especially for a digital TV broadcast may be decreased. The defogger is structured by arranging heating lines between bus bars on both sides. The portion of an uppermost heating line in proximity to the monopole antenna are folded rectangularly at a regular interval to form a meander shape. One lateral heating line is extended under the meander-shaped heating line portion, and is connected to a vertical heating line to which four lateral heating lines are connected together.

Abstract: An object of the invention is to receive a weak signal with high sensitivity and reduce distortion and signal suppression when a strong interference signal exists. When a high-frequency signal received by an antenna is to be amplified by an antenna amplifier and when an interference wave of high field strength exists, a switch circuit is switched by an output switchover circuit from the output of an amplifier to a through-circuit. The through-circuit guides the high-frequency signal, directly to the output side without passing through the amplifier. When the switching operation of the switch circuit is performed based on low-frequency components which are highly correlated with distortion components due to intermodulation, the switching operation can be performed more adequately. Noises can be reduced by performing a smoothing process on the switching operation, and the use of an inverting amplifier can prevent occurrence of oscillation.