Abstract: A spectral domain optical coherence tomography (SD-OCT) apparatus includes an optical source system adapted to generate and transmit an optical signal; an optical coupler operatively coupled to a reference optical path and a scanning optical path; and at least two spectrometers including high speed detectors, wherein the spectrometers provide outputs that are utilized for differential detection of a wavelength channel. A spectral domain optical coherence tomography (SD-OCT) apparatus includes an optical source system adapted to generate and transmit an optical signal; an optical coupler operatively coupled to a reference light path and a scanning light path; at least two spectrometers comprising high speed detectors, wherein the spectrometers are interleaved.

Abstract: In an embodiment, a method includes receiving power signals at respective powered devices of a subsystem. The method further includes coupling, to a power supply with one of the powered devices having a highest priority, one of the power signals received by the one of the powered devices having a highest priority. The method further includes generating a supply signal with the power supply in response to the one of the power signals.

Abstract: Provided are a transgenic animal model, a method for constructing same, and use thereof. An Axin1flox/flox transgenic mouse is used to mate with an Agc1-CreER transgenic mouse to produce an Axin1+Agc1ER condition knockout mouse. Then by means of tamoxifen induction, the Axin1 expression in the Axin1+Agc1ER condition knockout mouse is down-regulated, and a disease combined model with the pathological characteristics of “growth plate chondrocyte hypertrophy, heterotopic ossification and articular cartilage degeneration of knee joints” is successfully established. The model is similar to clinically related pathological features, and can be used for systematically studying the pathogenesis of growth plate chondrocyte hypertrophy, heterotopic ossification and osteoarthritis and further screening for drugs for treating related diseases.

Abstract: In an embodiment, a method includes receiving power signals at respective powered devices of a subsystem. The method further includes coupling, to a power supply with one of the powered devices having a highest priority, one of the power signals received by the one of the powered devices having a highest priority. The method further includes generating a supply signal with the power supply in response to the one of the power signals.

Abstract: In an embodiment, a powered device (PD) interface circuit includes a lower priority PD and a higher priority PD. The lower priority PD is configured to receive, and to couple to a power supply onboard a subsystem, a first power signal from first power source equipment (PSE). And the higher priority PD is configured to receive a second power signal from second PSE, to couple the second power signal to the power supply, and to prevent the lower priority PD from coupling the first power signal to the power supply while the higher priority PD is coupling the second power signal to the power supply. That is, such a PD interface circuit is configured to impart a respective priority to each PD such that if two or more PDs receive power from respective PSEs, then the interface circuit enables only the PD having the higher priority to couple a corresponding PSE power signal to the power supply onboard the subsystem.

Abstract: A computer system processes a message from a user mobile device by receiving the message from the user mobile device, wherein the message comprises a purchase request, and then determining a matching purchase offer in a database containing a plurality of purchase offers, wherein the matching purchase offer corresponds to an offer identified in the purchase request. The system then transmits a purchase request to a purchase agent at a third party provider that is associated with the matching purchase offer, and processing a purchase transaction received from the purchase agent at the third party provider.

Abstract: In an embodiment, a powered device (PD) interface circuit includes a lower priority PD and a higher priority PD. The lower priority PD is configured to receive, and to couple to a power supply onboard a subsystem, a first power signal from first power source equipment (PSE). And the higher priority PD is configured to receive a second power signal from second PSE, to couple the second power signal to the power supply, and to prevent the lower priority PD from coupling the first power signal to the power supply while the higher priority PD is coupling the second power signal to the power supply. That is, such a PD interface circuit is configured to impart a respective priority to each PD such that if two or more PDs receive power from respective PSEs, then the interface circuit enables only the PD having the higher priority to couple a corresponding PSE power signal to the power supply onboard the subsystem.

Abstract: A computer system processes a message from a user mobile device by receiving the message from the user mobile device, wherein the message comprises a purchase request, and then determining a matching purchase offer in a database containing a plurality of purchase offers, wherein the matching purchase offer corresponds to an offer identified in the purchase request. The system then transmits a purchase request to a purchase agent at a third party provider that is associated with the matching purchase offer, and processing a purchase transaction received from the purchase agent at the third party provider.