Abstract: Systems, methods, and non-transitory computer-readable media can access a content feed of a user in a social networking system. At least one content item to be added to the content feed is determined. One or more content items are added to the content feed, the content items being added from an explore feed in the social networking system, wherein the explore feed includes various content items that were posted by users of the social networking system.

Abstract: Systems, methods, and non-transitory computer-readable media can generate a set of candidate content items from a plurality of content items that are available in the social networking system for a first user. A corresponding score for each of the candidate content items can be generated based at least in part on one or more social affinity coefficients corresponding to the first user and a respective second user associated with a candidate content item, wherein a social affinity coefficient provides a quantitative measurement of the strength of a relationship between two users. A first set of content items from the set of candidate content items can be determined based at least in part on the respective scores, wherein content items in the first set are included in a content feed provided to the first user.

Abstract: Systems, methods, and non-transitory computer-readable media can generate a set of candidate content items from a plurality of content items that are available in the social networking system, wherein one or more of the candidate content items are to be included in a personalized content stream for a first user. A corresponding score for each of the candidate content items can be generated with respect to the first user. A first set of content items can be determined from the set of candidate content items based at least in part on the respective scores, wherein content items in the first set are included in the personalized content stream.

Abstract: Systems, methods, and non-transitory computer-readable media can generate a set of candidate content items from a plurality of content items that are available in the social networking system, wherein one or more of the candidate content items are to be included in a personalized content stream for a first user. A corresponding score for each of the candidate content items can be generated with respect to the first user. A first set of content items can be determined from the set of candidate content items based at least in part on the respective scores, wherein content items in the first set are included in the personalized content stream.

Abstract: Techniques for controlling an optical system include accessing a measured value of a property of a particular pulse of a pulsed light beam emitted from the optical system, the property being related to an amount of coherence of the light beam; comparing the measured value of the property of the light beam to a target value of the property; determining whether to generate a control signal based on the comparison; and if a control signal is generated based on the comparison, adjusting the amount of coherence in the light beam by modifying an aspect of the optical system based on the control signal to reduce an amount of coherence of a pulse that is subsequent to the particular pulse.

Abstract: A memory system has a plurality of memory stages in which each stage stores a respective portion of a data table. A request for reading an entry of the table is processed serially by the memory stages, and each stage narrows the range of table entries possibly storing the requested data. Based on the results of the previous stages, the final stage is able to quickly determine whether the requested data is stored in the data table and, if so, to retrieve the requested data from such table.

Abstract: A system includes a solid feed pump. The solid feed pump includes a housing, a rotor disposed in the housing, a curved passage disposed between the rotor and the housing, a solid feed inlet coupled to the curved passage, a solid feed outlet coupled to the curved passage, and a rotatable sleeve configured to rotate to actively draw solid feed into the solid feed inlet or out of the solid feed outlet.

Abstract: Techniques for controlling an optical system include accessing a measured value of a property of a particular pulse of a pulsed light beam emitted from the optical system, the property being related to an amount of coherence of the light beam; comparing the measured value of the property of the light beam to a target value of the property; determining whether to generate a control signal based on the comparison; and if a control signal is generated based on the comparison, adjusting the amount of coherence in the light beam by modifying an aspect of the optical system based on the control signal to reduce an amount of coherence of a pulse that is subsequent to the particular pulse.

Abstract: The embodiments disclosed herein relate to various robotic and/or in vivo medical devices having compact joint configurations and at least three degrees of freedom. Other embodiments relate to various medical device components, including forearms having grasper or cautery end effectors, that can be incorporated into certain robotic and/or in vivo medical devices.

Abstract: The various embodiments herein relate to a coupling apparatus for a medical device having a coupler body, a cavity defined in the coupler body, a rotatable drive component disposed within the cavity and having at least two pin-receiving openings, and an actuable locking ring disposed around the cavity.

Abstract: The various embodiments herein relate to robotic surgical systems and devices that use force and/or torque sensors to measure forces applied at various components of the system or device. Certain implementations include robotic surgical devices having one or more force/torque sensors that detect or measure one or more forces applied at or on one or more arms. Other embodiments relate to systems having a robotic surgical device that has one or more sensors and an external controller that has one or more motors such that the sensors transmit information that is used at the controller to actuate the motors to provide haptic feedback to a user.

Abstract: A waveform synthesis technique for radio frequency identification (RFID) transmitters and an RFID system making us of the technique are disclosed. The RFID transmitter in example embodiments synthesizes a continuous transmitter waveform from a symbol alphabet without Nyquist or interpolation filters. High spectral occupancy waveforms are achieved which include the ability to do both linear and nonlinear predistortion with no increase in computational load once the signal set has been adapted to compensate for linear and nonlinear distortion in the transmitter analog circuitry. A polarity generator can be used to impart the required polarity to each waveform. The RFID transmitter can be employed in RFID readers to reduce the computational requirements of the digital signal processor (DSP).

Abstract: A plurality of batteries is printed on a flexible substrate, where each battery may output the same voltage, such as about 1.5 volts. Batteries in a first subset are connectable in parallel by controllable switches to control the maximum current that can be delivered to a load. Batteries in a second subset are also connectable in parallel by additional controllable switches to control the maximum current that can be delivered to the load. Another group of switches can either connect the two subsets of batteries in series, to generate 3 volts, or connect the subsets in parallel to increase the maximum current. Additional subsets of batteries and their associated switches may be further connected to increase the voltage and current. The power supply may be standardized and configured by the user for a particular load, such as a sensor for a medical skin patch.

Abstract: A social networking system user identifies one or more social networking system users authorized to present content items to the user via the social networking system (“authorized users”). When an additional user requests presentation of a content item to the user, the social networking system determines if the additional user is an authorized user. If the additional user is an authorized user, the content item is presented to the user. However, if the additional user is not an authorized user, the social networking system identifies the additional user to the user along with a request to identify the additional user as an authorized user. If the user identifies the additional user as an authorized user in response to the request, the content item is presented to the user.

Abstract: A method of start-up for a gasification system includes establishing a flow of a start-up fuel external to the gasifier prior to ignition of the gasifier. The method also includes establishing a start-up liquid feed external to the gasifier during gasifier start-up. The method further includes channeling the start-up liquid feed and the start-up fuel to the gasifier during gasifier start-up.

Abstract: In one aspect, a gasification system for use with low rank fuel is provided The system includes a pyrolysis unit positioned to receive a feed of low rank fuel, the pyrolysis unit being configured to pyrolyze the low rank fuel to produce pyrolysis gas and fixed carbon. The system also includes a gasifier configured to produce a syngas stream using the received fixed carbon, a cooler configured to receive and cool the syngas stream, and a first conduit coupled between the cooler and the pyrolysis unit. The first conduit is configured to recycle at least a portion of the syngas stream to the pyrolysis unit such that the recycled syngas stream is mixed with the pyrolysis gas to produce a hydrocarbon-rich syngas stream containing gasification by-products. The system also includes a by-product recovery system coupled to the pyrolysis unit for removing the gasification by-products from the hydrocarbon-rich syngas stream.

Abstract: Methods and apparatus for processing an image of a beam generated by an optical system to extract information indicative of an extent of damage to optical elements in the optical system. Also disclosed is a beam image and analysis tool capable of acquiring an image of a beam at any one of a number of locations.

Abstract: Methods and apparatus for in situ compensation for damage or misalignment of optical elements are disclosed. Also disclosed are methods and apparatus for facilitating alignment of replacement optical elements so that the amount of time in a system including the optical elements can be reduced. Also disclosed are methods and apparatus for processing an image of a beam generated by an optical system to extract information indicative of an extent of damage to optical elements in the optical system and/or misalignment of the optical elements. Information pertaining to an extent of damage to optical elements in the optical system can be used to optimally schedule maintenance events for the optical system.

Abstract: The present invention is directed to a pen-type injector equipped with a cartridge holder for a drug delivery device. The cartridge holder has a longitudinal axis and comprises a body for receiving a cartridge, wherein the body comprises at a proximal end engagement means for releasably coupling the cartridge holder to the drug delivery device, a latch member for releasably engaging a cap of the drug delivery device and an alignment element which is visual from the outer side of the body. The alignment element may be an aperture provided in the body and/or a lug which forms the latch member.

Abstract: The various embodiments disclosed herein relate to improved robotic surgical systems, including robotic surgical devices having improved arm components and/or biometric sensors, contact detection systems for robotic surgical devices, gross positioning systems and devices for use in robotic surgical systems, and improved external controllers and consoles.