Abstract: A non-transitory computer-readable storage medium storing therein an information management program for causing a computer to execute a process comprises: receiving property information indicating a reliability of a post uploaded on the Internet and a digital signature generated from the property information; and storing the property information, to which identification information of the post and the digital signature are added, in a storage.

Abstract: An information processing apparatus acquires a first verifiable credential (VC) that proves the validity of attribute information of a holder by a first signature verifiable by verification procedures of a first decentralized identifiers (DID) infrastructure and a second VC that proves the validity of the attribute information of the holder by a second signature verifiable by verification procedures of a second DID infrastructure. Next, the information processing apparatus verifies the second signature contained in the second VC by the verification procedures of the second DID infrastructure. Further, the information processing apparatus transmits a verification request for verifying the first signature contained in the first VC to a verification device capable of verifying the first signature contained in the first VC by the verification procedures of the first DID infrastructure, and then acquires, from the verification device, verification results of the first signature contained in the first VC.

Abstract: In one embodiment, an object of the present invention is to provide a liquid cycling luminescence reagent excellent in stability. In one embodiment, the present invention provides a liquid composition for measuring ATP and AMP and/or ADP in a sample after storage of the liquid composition, wherein (i) the liquid composition comprises luciferase, luciferin, an enzyme that catalyzes a reaction that produces ATP from AMP, a substrate of the enzyme that catalyzes a reaction that produces ATP from AMP, and a cofactor, or when at least one of these components is not contained in the liquid composition, the component that is not contained in the liquid composition is added to the liquid composition before or during measurement, and (ii) the relative luminescence level of the liquid composition during storage is 5500 RLU or less, and the relative level of luminescence is a value determined by subtracting a control value from a measurement value.

Abstract: Provided are a kit and a method for measuring cleanliness of a bio-related sample and a bio-related instrument, which is not susceptible to ATP-degrading activity. Provided are a method for measuring cleanliness of a bio-related sample or a bio-related instrument and a kit therefor, comprising using an enzyme that catalyzes a reaction that produces ATP from ADP, luciferin, luciferase, and a metal salt. Also provided are a method further comprising using pyruvate orthophosphate dikinase (PPDK), adenylate kinase (ADK), or pyruvate-water dikinase (PWDK) and a kit further comprising PPDK, ADK, or PWDK. Further provided are a method for measuring cleanliness of a bio-related sample or a bio-related instrument and a kit therefor, comprising using an enzyme that catalyzes a reaction that produces ATP from AMP, an enzyme that catalyzes a reaction that produces AMP from ADP, luciferin, luciferase, and a metal salt.

Abstract: A down converter has two down converter circuits. The one down converter circuit has a first mixer, a first ½ frequency-divider, and a first PLL. The other down converter circuit has a second mixer, a second ½ frequency-divider, and a second PLL. A difference frequency between a frequency of a local oscillation frequency signal of the second PLL and a frequency of a frequency-divided signal of the first ½ frequency-divider is higher than an upper limit of a receive frequency band of a tuner.

Abstract: A down converter has two down converter circuits. The one down converter circuit has a first mixer, a first ½ frequency-divider, and a first PLL. The other down converter circuit has a second mixer, a second ½ frequency-divider, and a second PLL. A difference frequency between a frequency of a local oscillation frequency signal of the second PLL and a frequency of a frequency-divided signal of the first ½ frequency-divider is higher than an upper limit of a receive frequency band of a tuner.

Abstract: A DC offset cancel circuit includes, in each of an I-channel side and a Q-channel side, a mixer and an ADC that output differential signals. The DC offset cancel circuit further includes a direct-current component extractor. The direct-current component extractor extracts direct-current components from a signal I and a signal Ib output from the mixer in the I-channel side and a signal Q and a signal Qb output from the mixer in the Q-channel side. The ADC in the I-channel side receives signals in which the direct-current components extracted from the signal Q and the signal Qb are fed forward to the signal I and the signal Ib. The ADC in the Q-channel side receives signals in which the direct-current components extracted from the signal I and the signal Ib are fed forward to the signal Q and the signal Qb.

Abstract: A composition for analyzing nucleic acid that contains luciferase for which reactivity to dATP is equal to or less than 1/400 reactivity to ATP. A method for analyzing nucleic acid that comprises the use of the composition. A kit for analyzing nucleic acid comprising the composition. The method provides for an inexpensive, highly accurate and highly sensitive nucleic acid analysis that uses dATP instead of an expensive reagent having a low reactivity to DNA polymerase.

Abstract: A receiver includes a band-pass filter that limits a passband of an IF (Intermediate Frequency) signal, an FSK detector that detects the IF signal passing through the band-pass filter to generate a detection signal, and a control block that controls a modulation sensitivity of the FSK detector and a pass bandwidth of the band-pass filter, in which the control block controls the modulation sensitivity of the FSK detector according to the pass bandwidth of the band-pass filter.

Abstract: The present invention provides a firefly luciferase for inexpensive, highly accurate and highly sensitive nucleic acid analysis that uses dATP instead of an expensive reagent having low reactivity to DNA polymerase in the manner of dATP?S, a method of analyzing nucleic acid that uses that luciferase, and a kit for analyzing nucleic acid thereof. The present invention relates to a composition for analyzing nucleic acid that contains luciferase for which reactivity to dATP is equal to or less than 1/400 reactivity to ATP, a method of analyzing nucleic acid that comprises the use of that composition, and a kit for analyzing nucleic acid comprising that composition.

Abstract: A DC offset cancel circuit according to the present invention includes, in each of an I-channel side and a Q-channel side, a mixer and an ADC that output differential signals. This DC offset cancel circuit further includes a direct-current component extractor. The direct-current component extractor extracts direct-current components from a signal I and a signal Ib output from the mixer in the I-channel side and a signal Q and a signal Qb output from the mixer in the Q-channel side. The ADC in the I-channel side receives signals in which the direct-current components extracted from the signal Q and the signal Qb are fed forward to the signal I and the signal Ib. The ADC in the Q-channel side receives signals in which the direct-current components extracted from the signal I and the signal Ib are fed forward to the signal Q and the signal Qb.

Abstract: The present invention provides a firefly luciferase for inexpensive, highly accurate and highly sensitive nucleic acid analysis that uses dATP instead of an expensive reagent having low reactivity to DNA polymerase in the manner of dATP?S, a method of analyzing nucleic acid that uses that luciferase, and a kit for analyzing nucleic acid thereof. The present invention relates to a composition for analyzing nucleic acid that contains luciferase for which reactivity to dATP is equal to or less than 1/400 reactivity to ATP, a method of analyzing nucleic acid that comprises the use of that composition, and a kit for analyzing nucleic acid comprising that composition.

Abstract: A receiver includes a band-pass filter that limits a passband of an IF (Intermediate Frequency) signal, an FSK detector that detects the IF signal passing through the band-pass filter to generate a detection signal, and a control block that controls a modulation sensitivity of the FSK detector and a pass bandwidth of the band-pass filter, in which the control block controls the modulation sensitivity of the FSK detector according to the pass bandwidth of the band-pass filter.

Abstract: A frequency dividing phase shift circuit includes a first frequency divider and a second frequency divider. The first frequency divider is configured to perform 1/(2n+1) (n is a natural number) frequency division on an input signal having a frequency of (freq*2(2n+1)) (“freq” indicates a frequency) to generate a first signal having a frequency of (freq*2). The second frequency divider is configured to perform ½ frequency division on the first signal to generate 4-phase signals which are different in phase by 90 degrees one after another.

Abstract: A method of judging fatigue, which comprises judging fatigue by using, as an index, a value obtained by quantitatively analyzing an adenine nucleotide in a sample to be measured.

Abstract: A frequency dividing phase shift circuit includes a first frequency divider and a second frequency divider. The first frequency divider is configured to perform 1/(2n+1) (n is a natural number) frequency division on an input signal having a frequency of (freq*2(2n+1)) (“freq” indicates a frequency) to generate a first signal having a frequency of (freq*2). The second frequency divider is configured to perform ½ frequency division on the first signal to generate 4-phase signals which are different in phase by 90 degrees one after another.

Abstract: The present invention provides: a method for nucleic acid analysis including the steps of subjecting a reaction solution containing a sample nucleic acid to complementary strand synthesis with the sample nucleic acid as a template, reacting pyrophosphate produced in the complementary strand synthesis with 30 to 800 ?M AMP in the coexistence of pyruvate phosphate dikinase to produce ATP, performing luciferase reaction with the ATP as a reaction substrate, and detecting chemiluminescence generated in the luciferase reaction to determine the presence or absence of the complementary strand synthesis; and a kit therefor.