Abstract: The technology described herein is directed to compositions and methods for modifying and controlling the activity of cells by expression of proteins from self-amplifying RNA (saRNA). Also described herein are compositions and methods for modifying and controlling the activity of cells by expression of proteins from self-amplifying RNA that is substituted with chemically modified nucleotides.

Abstract: An apparatus includes a first conductor connected to a pin of a controller, where the first conductor includes a low frequency first signal component, and second conductor with a high frequency second signal component. A coupling section includes part of the first conductor situated in proximity to part of the second conductor. The second signal induces an induced signal on the first conductor within the coupling section. The high frequency is at least an order of magnitude higher than the low frequency. The apparatus includes the controller with a first signal monitor configured to monitor the first signal present on the pin of the controller and to report a status of the first signal, and a second signal monitor configured to monitor the second signal by monitoring the induced signal present on the pin and to report a status of the second signal based on the induced signal.

Abstract: An LED system includes an LED array, a plurality of driver circuits, a power supply, a bus and a feedback circuit. Each of the plurality of driver circuits is connected to and driving one of a plurality of LED subarrays in the LED array. Each of the plurality of driver circuits includes a comparator circuit, a local voltage register, and a global voltage register. The comparator circuit determines, as a local minimum voltage, a lowest voltage in the corresponding LED subarray. The global minimum voltage is determined by comparing all the local minimum voltages. The feedback circuit provides the power supply with a feedback signal reflecting the global minimum voltage and causes the power supply to adjust the voltage output to the LED array.

Abstract: A computing system can receive utilization data from computing devices of requesting users. Based on the utilization data, the system can determine, for each requesting user, an intent of the requesting user, the intent corresponding to a probability that the requesting user will utilize the transport service upon arrival at an arrival location of a transit vehicle. The system may determine a destination for the requesting user that requires additional transport from the arrival location of the transit vehicle. Based on the destination of the requesting user, the system can transmit a set of transport requests to computing devices of a set of the transport providers to facilitate transport for the requesting users at the arrival location of the transit vehicle.

Abstract: A vehicle light bar that effectively dissipates excess heat without creating unwanted vibrations and noises is disclosed. The light bar includes a number of lights and lenses as well as associated power and control components mounted in or on a housing and a number of heat dissipation fins extending from the housing. The fins are relatively short, thick, and closely spaced and do not vibrate and create noticeable noises even when the vehicle to which the lightbar is attached is travelling at high speeds.

Abstract: Weather-resistant light emitting diode (LED) assemblies, which prevent water and moisture from entering the LED assemblies, which may be integrated to form a display, so that images may be displayed on the display are provided. A waterproof light emitting diode (LED) assembly including an LED tile including one or more LED boards; and a power box, wherein each LED board includes an array of LEDs, and the LED tile and the power box are connected through a plurality of waterproof connector assemblies is provided. Each waterproof connector assembly comprises a waterproof connector plug and waterproof connector socket having an O-ring, wherein the waterproof connector having the O-ring cooperatively interfacing with the waterproof connector plug seals the waterproof connector assembly. A waterproof LED panel including a plurality of waterproof LED assemblies mounted on a LED panel frame is also provided.

Abstract: A computing system can receive utilization data from computing devices of requesting users. The system can process the utilization data by (i) executing a transit monitoring engine on the utilization data to detect a cluster of requesting users currently being transported by a third-party transit vehicle to an arrival location of the third-party transit vehicle, and (ii) executing a transport coordination engine on the utilization data to determine, for each requesting user in the cluster, an intent of the requesting user corresponding to a probability that the requesting user will utilize the transport service upon arrival at the arrival location of the third-party transit vehicle.

Abstract: A method and an apparatus for operating an LED display are provided. The method includes: storing Nth scan line data in a line buffer; storing the Nth scan line data in a frame buffer; displaying the Nth scan line data stored in the line buffer; during the displaying of the Nth scan line data stored in the line buffer, storing (N+1)th scan line data in the line buffer; storing the (N+1)th scan line data in the frame buffer; displaying the (N+1)th scan line data stored in the line buffer; repeating the above steps until (N+M)th scan line data stored in the line buffer is displayed; and displaying scan line data stored in the frame buffer from the Nth scan line data to the (N+M)th scan line data.

Abstract: A method for programming and controlling of a plurality of slave devices serially connected in a daisy chain configuration using a master device includes assigning a unique slave address to each slave device in the plurality of slave devices by sending an initialization data packet from the master device serially through the plurality of slave devices; storing, in each of the plurality of slave devices, the assigned slave address; defining a data packet; and transmitting the data packet serially to one or more of the plurality of slave devices. The data packet has a target slave address, a read/write command, a start address, and optionally a register address and an increment value.

Abstract: Fine feature formation techniques for printed circuit boards are described. In one embodiment, for example, a method may comprise fabricating a conductive structure on a low density interconnect (LDI) printed circuit board (PCB) according to an LDI fabrication process and forming one or more fine conductive features on the LDI PCB by performing a fine feature formation (FFF) process, the FFF process to comprise removing conductive material of the conductive structure along an excision path to form a fine gap region within the conductive structure. Other embodiments are described and claimed.

Abstract: Weather-resistant light emitting diode (LED) assemblies, which prevent water and moisture from entering the LED assemblies, which may be integrated to form a display, so that images may be displayed on the display are provided. A waterproof light emitting diode (LED) assembly including an LED tile including one or more LED boards; and a power box, wherein each LED board includes an array of LEDs, and the LED tile and the power box are connected through a plurality of waterproof connector assemblies is provided. Each waterproof connector assembly comprises a waterproof connector plug and waterproof connector socket having an O-ring, wherein the waterproof connector having the O-ring cooperatively interfacing with the waterproof connector plug seals the waterproof connector assembly. A waterproof LED panel including a plurality of waterproof LED assemblies mounted on a LED panel frame is also provided.

Abstract: A simulation management service receives a request to perform reinforcement learning for a robotic device. The request can include computer-executable code defining a reinforcement function for training a reinforcement learning model for the robotic device. In response to the request, the simulation management service generates a simulation environment and injects the computer-executable code into a simulation application for the robotic device. Using the simulation application and the computer-executable code, the simulation management service performs the reinforcement learning within the simulation environment.

Abstract: A computing system can receive utilization data from computing devices of requesting users. The system can process the utilization data by (i) executing a transit monitoring engine on the utilization data to detect a cluster of requesting users currently being transported by a third-party transit vehicle to an arrival location of the third-party transit vehicle, and (ii) executing a transport coordination engine on the utilization data to determine, for each requesting user in the cluster, an intent of the requesting user corresponding to a probability that the requesting user will utilize the transport service upon arrival at the arrival location of the third-party transit vehicle.

Abstract: An LED system includes an LED array, a plurality of driver circuits, a power supply, a bus and a feedback circuit. Each of the plurality of driver circuits is connected to and driving one of a plurality of LED subarrays in the LED array. Each of the plurality of driver circuits includes a comparator circuit, a local voltage register, and a global voltage register. The comparator circuit determines, as a local minimum voltage, a lowest voltage in the corresponding LED subarray. The global minimum voltage is determined by comparing all the local minimum voltages. The feedback circuit provides the power supply with a feedback signal reflecting the global minimum voltage and causes the power supply to adjust the voltage output to the LED array.

Abstract: A computing system can process utilization data from computing devices of requesting users of a transport service and identify a plurality of the requesting users being transported by a third-party transit means, such as a train, bus, or ferry, to an arrival location. For each of the plurality of requesting users, the system can determine a destination requiring additional transport from the arrival location of the third-party transit means. Based on the destination of each of the plurality of requesting users, the system can coordinate with a set of transport providers within a certain proximity of the arrival location of the transit means to facilitate transport for the plurality of requesting users at the arrival location.

Abstract: An LED display panel contains an LED array having a plurality of LED pixels, a plurality of scan switches, and a plurality of LED columns. The anode of each LED pixel in each LED column is connected to a common anode node and the common anode node is connected to an output of a current source, while the cathode of each LED pixel in each LED column is switchably connected to a current sink via one of the plurality of scan switches. The common anode node is connected to a first input of a comparator circuit and is switchably connected to an anode voltage source. The second input of the comparator circuit is connected to a reference voltage source and an output of the comparator circuit signally controls a switch member that switchably connects the common anode node to the current sink.

Abstract: Examples of systems and methods for augmented facial animation are generally described herein. A method for mapping facial expressions to an alternative avatar expression may include capturing a series of images of a face, and detecting a sequence of facial expressions of the face from the series of images. The method may include determining an alternative avatar expression mapped to the sequence of facial expressions, and animating an avatar using the alternative avatar expression.

Abstract: A method for assembling an LED display includes the steps of: preparing a prefabricated diffuser film containing a light diffusion agent; mounting a plurality of light emitting elements on a substrate, thereby forming a plurality of gaps among the plurality of light emitting elements; filling the plurality of gaps with a black resin to form a planar surface composed of top surfaces of the plurality of light emitting elements and top surfaces of the black resin in the plurality of gaps; applying a transparent resin layer over the planar surface; and affixing the prefabricated diffuser film on the transparent resin layer. The resulting LED display has a plurality of light emitting elements surrounded by a black resin to form a checkered surface, a transparent resin layer affixed to the checkered surface; and a diffuser film affixed to the transparent resin layer by an adhesive.

Abstract: An LED display device includes an LED array and a driver system thereof. The LED display device is configured so that LEDs in the LED array can switch between receiving scan signals at their anodes or receiving scan signals at their cathodes.