Abstract: Techniques to confirm account registration. In one embodiment, an MSISDN associated with a mobile device is received. It is determined whether to confirm registration of an account with a social networking system based at least in part on the MSISDN. Receipt of the MSISDN may include receipt of an HTTP request. The HTTP request may include an HTTP header with the MSISDN and a phone number associated with the mobile device. The MSISDN and the phone number may be compared. Registration may be confirmed based on a match between the MSISDN and the phone number.

Abstract: A circuit (400) is described herein for controlling dimming of a lamp (112), the circuit comprising a switching circuit (422) configured to provide a chopped portion of an input AC power signal, a resettable inverting integrator circuit (426) configured to integrate the chopped portion of the input AC power signal such that a rise time of an output of the resettable inverting integrator circuit is proportional to a positive amplitude of the chopped portion of the input AC power signal and a fall time of the output of the resettable integrator is proportional to a negative amplitude of the chopped portion, such that an energy provided to the lamp based on the output of the resettable inverting integrator circuit is substantially equivalent from cycle-to-cycle of said input AC power signal regardless of a change in amplitude of the input AC power signal from cycle-to-cycle.

Abstract: Systems, methods, and non-transitory computer-readable media receive a source video having a source file size. A bit rate at which to encode the source video is determined. The source video is encoded at the determined bit rate to produce an encoded video having a file size less than the source file size. A video quality metric for the encoded video is determined. Whether or not the video quality metric for the encoded video is within an allowable deviation from a target quality metric is determined. The source video is encoded at another determined bit rate when the video quality metric for the encoded video is outside the allowable deviation from the target quality metric. Determining the bit rate and encoding the source video at the determined bit rate can repeat iteratively until the video quality metric for the encoded video is within the allowable deviation from the target quality metric.

Abstract: In one embodiment, a method includes providing for presentation on a graphical user interface an identification of a user; and providing presence information of the user with the identification of the user. The presence information indicates a temporal, spatial, modal, or social accessibility or availability of user. The presence information includes real-time video of the user captured and is provided as presence information automatically and without user input of the user.

Abstract: Techniques to confirm account registration. In one embodiment, an MSISDN associated with a mobile device is received. It is determined whether to confirm registration of an account with a social networking system based at least in part on the MSISDN. Receipt of the MSISDN may include receipt of an HTTP request. The HTTP request may include an HTTP header with the MSISDN and a phone number associated with the mobile device. The MSISDN and the phone number may be compared. Registration may be confirmed based on a match between the MSISDN and the phone number.

Abstract: An energy-generating system employs a combustor to combust a pressurized fluid, with the resulting products of combustion being used to operate a turbine. The pressurized fluid is divided into first and second fluid portions that are conducted to the combustor inlet through first and second flow paths, respectively. The second flow path is arranged to cause the second fluid portion traveling therein to receive heat from the combustor before being merged with the first fluid flow at the combustor inlet. The combustor can include catalytic bodies, and some products of combustion generated in the combustion chamber are recycled back through the combustor.