Abstract: RNA molecules comprising a guide sequence portion having 17-20 nucleotides in the sequence of 17-20 contiguous nucleotides set forth in any one of SEQ ID NOs: 1-3010 and compositions, methods, and uses thereof.

Abstract: A wireless power transmitter for powering a remote receiver using a laser beam, the laser beam generator having current inputs and outputs electrically insulated from their surroundings, and each including a separate controlled gated switch. The transmitter has a beam adjustment element for switching the beam between a collimated beam for power transfer, and a more divergent beam for scanning, which is performed by a beam deflector. A detection system detect the presence of a receiver, and is used to ensure accurate beam impingement on the power receiving element. A controller senses when the beam is centered on the power receiving element, switches from the divergent scanning beam to the collimated beam, and instructs the beam generator to raise the power of the laser beam to a level for powering the receiver. The gate controller operates at a higher voltage than the other system control circuits.

Abstract: RNA molecules comprising a guide sequence portion having 17-25 contiguous nucleotides containing nucleotides in the sequence set forth in any one of SEQ ID NOs: 1-6601 and compostions, methods, and uses thereof.

Abstract: A safety supervision system for wireless power transmission, comprising a transmitter having an optical beam generator with safe states for transmitting power to receivers that convert the beam into electrical power. The system control unit stores previously known signatures categorized by predetermined parameters associated with one or more unwanted situations, stores data from sensors, compares this stored data to the signatures, and executes one or more responses based on this comparison. The system may comprise transmitter and/or receiver malfunction detection systems adapted to monitor the transmitter and receiver control units and to cause the optical beam generator to switch to a safe state upon detection of a transmitter or receiver control unit malfunction, and may further comprise a hazard detection system preventing human exposure to beam intensity above a predefined safe level.

Abstract: A system for transmitting wireless power from multiple sources to multiple receivers, in which the safety of the system is maintained in spite of the possibility that two beams may intersect in the transmission space, thereby generating power or power density levels which exceed those at which the safety mechanisms of the system were designed to operate. The paths of the beams are known from the transmission positions and directions, and from the positions and orientations of the receivers, as measured by positioning devices on them. When an intersection, or near intersection of beams is determined, the system is triggered to reduce the safety risk by attenuating or turning off, or by diverting, one or more of the beams. In addition, since a reflected beam's path may not be readily discernable, the system can ascertain if one of the beams has undergone a reflection, by looking for displayed mirror images.

Abstract: A system for safe transmission of an RF electromagnetic power beam to a receiver for conversion into electric power. The receiver has an antenna array for receiving the RF beam and electrical circuitry to receive a corresponding RF electrical current from the antenna array. The circuitry includes a converter for generating DC current from the RF electrical current, and includes at least one component that reflects part of the RF current back towards the antenna array. This converts the reflected portion of the RF electrical current into a retransmitted RF electromagnetic beam having the same frequency as the RF electromagnetic power beam, and is directed back towards the transmitter. The receiver monitors the reflected RF current, and transmits a proportional signal back to a controller. The controller reduces the transmitted power beam if its interference with the retransmitted beam would generate a field intensity above a safe level.

Abstract: A wireless optical power transmission system comprising a transmitter and receiver, the transmitter comprising a laser emitting a beam, a scanning mirror for steering the beam towards said receiver and a control unit receiving signals from a detection unit on the receiver and controlling the beam power and the scanning mirror. The receiver has a photovoltaic cell having a bandgap energy of 0.75-1.2 eV, with a plurality of conductors on a beam receiving surface. A cover layer of material blocking illumination of wavelengths outside that of the laser, is disposed on the photovoltaic cell. The cover layer may have anti-reflective coatings on its top and bottom surfaces. The detection unit thus generates a signal representing the power of the laser beam impinging upon the receiver, independent of illuminations other than that of said laser beam. The control unit thus can maintain the laser power impinging on the receiver.

Abstract: A laser system involving coupled distributed resonators disposed serially, with the lasing gain medium located in the main resonator and the output of that resonator being directed into a free space resonator, such that the main resonator output mirror is effectively the free space resonator. The distributed resonators end mirrors are retroreflectors. Interference occurs between light traveling towards the remote mirror of the free space resonator and light reflected therefrom, generating regions of high reflectivity. The coupling of the free space resonator to the regions of high reflectivity of the free space resonator enables the first resonator to lase efficiently, even though the true reflectivity of the main resonator output mirror outside of those regions is insufficient to enable efficient lasing, if at all. This coupled resonator structure enables lasing to occur with a high field of view and the high gain engendered by the high reflectivity regions.

Abstract: A wireless power transmitter system for directing a high energy beam towards receivers fitted with identifying signs. One type of the identifying signs may have asymmetric shape properties, such that their mirror image cannot be matched to their actual shape, even after the image is rotated, tilted or otherwise geometrically manipulated. The system can thus determine whether a detected image of a sign is a true image received directly from said receiver, or is received after the imaged beam has undergone a reflection between the receiver and the transmission system. In the latter case, the system can prevent high power transmission from being directed to a location other than a real receiver, which could be a safety hazard. Other types of identifying signs may be located in or on the borders of different zones of a transmission space, to identify zones where transmission may be allowed or prohibited.

Abstract: A wireless optical power transmission system comprising a transmitter and receiver, the transmitter comprising a laser emitting a beam, a scanning mirror for steering the beam towards said receiver and a control unit receiving signals from a detection unit on the receiver and controlling the beam power and the scanning mirror. The receiver has a photovoltaic cell having a bandgap energy of 0.75-1.2 e V, with a plurality of conductors on abeam receiving surface. A cover layer of material blocking illumination of wavelengths outside that of the laser, is disposed on the photovoltaic cell. The cover layer may have anti-reflective coatings on its top and bottom surfaces. The detection unit thus generates a signal representing the power of the laser beam impinging upon the receiver, independent of illuminations other than that of said laser beam. The control unit thus can maintain the laser power impinging on the receiver.

Abstract: A method for locating a vessel, the method comprising illuminating at least a portion of the vessel with a background light having a substantially high susceptibility to absorption by particles in said portion of the vessel; detecting backscattered light from said illuminated portion of the vessel; reproducing an image from said backscattered light; and identifying dark regions within said reproduced image.

Abstract: A receiver for receiving an incident beam of optical power from a remote transmitter over a predefined field of view, comprising an input lens having a high durability coating that can withstand domestic handling and contamination. Such a high durability coating may reflect a non-insignificant part of the light incident thereon. Behind the lens, there is fitted a retroreflector disposed such that it reflects that part of the incident beam traversing the lens, back through the lens to the transmitter. Reflections from the front surface of the lens impinge on one or more transparent beam catchers appropriately located, and equipped with energy conversion devices, such as photovoltaic cells, to convert light from the reflections of the incident beam into electricity. Additional energy conversion devices may be located inward of the lens, to collect and convert reflections from the inner surface of the lens, of light returning from the retroreflector.

Abstract: A method, product, and system comprising: rendering a webpage, said rendering comprises generating a HyperText Transfer Protocol (HTTP) packet to request the webpage from a server, the HTTP packet is absent of referral information in a referrer field, said rendering comprises communicating the HTTP packet to the server; obtaining from a user a first command to return from the webpage to a previous page, the previous page was rendered immediately before said rendering the webpage; based on the referrer field, dynamically modifying the webpage to present content of a publisher of the webpage instead of returning to the previous page; and in response to obtaining from the user a second command to return to the previous page, navigating to the previous page.

Abstract: A fail-safe wireless power transmission system having a transmitter, a receiver, a receiver functionality monitor unit, a transmitter functionality monitor unit and at least two sensors. The transmitter has at least one low emission state, and at least one high emission state, the high emission states having higher emissions and more complex safety systems. The transmitter may be precluded from switching from a low emission state to any high emission states upon detection of a receiver control unit malfunction, a transmitter control unit malfunction, a likelihood of human-accessible emission from the system greater than a predetermined level, or an inconsistency between results arising from at least two of the sensors. Two different methods of such preclusion may be used simultaneously or consecutively to improve reliability. A transmitter control unit analyzes data from the sensors, and performs calculations to determine if and what type of preclusion is needed.

Abstract: A method, product, and system comprising: obtaining a webpage request from an in-app browser of an application of a user device, wherein the webpage request is configured to request a webpage or a portion thereof from a server, wherein the webpage request comprises a user-agent field; identifying that the webpage request has no valid referral information; and based on the webpage request, determining artificial referral information of the webpage request, wherein the artificial referral information indicates a referral source of the webpage request.

Abstract: A fail-safe wireless power transmission system having a transmitter, a receiver, a receiver functionality monitor unit, a transmitter functionality monitor unit and at least two sensors. The transmitter has at least one low emission state, and at least one high emission state, the high emission states having higher emissions and more complex safety systems. The transmitter may be precluded from switching from a low emission state to any high emission states upon detection of a receiver control unit malfunction, a transmitter control unit malfunction, a likelihood of human-accessible emission from the system greater than a predetermined level, or an inconsistency between results arising from at least two of the sensors. Two different methods of such preclusion may be used simultaneously or consecutively to improve reliability. A transmitter control unit analyzes data from the sensors, and performs calculations to determine if and what type of preclusion is needed.

Abstract: A method, product and system for automatic fraud engagement adjustment. The method comprises, based on monitoring of engagements and conversions, determining a segment-specific estimated quality score of a traffic segment; determining an observation-based pair-specific quality score for the traffic segment and for a specific campaign; and automatically performing mitigating fraudulent engagements in the traffic segment by reducing, in real-time, a reward for engagements in the traffic segment with respect to the specific campaign, whereby aggregative reward mitigates rewards for fraudulent engagements without specifically identifying which engagements are fraudulent.

Abstract: A method, apparatus, and product for implementing dynamic modifications of displayed pages to introduce new widgets. A new widget is displayed instead of, or in addition to, a pre-existing widget. Both the new widget and the pre-existing widget display content items that are retrieved from a content item repository. Optionally, the pre-existing widget may be a feed and the new widget may be a carousel widget. Content of the new widget may be determined based on interactions, inferred interest, attention, or the like, of the user with the pre-existing feed. The new feed may be first displayed after the pre-existing feed is no longer visible in the page.

Abstract: A method, apparatus, and product including: obtaining a timeframe measuring a time since a content switch of a carousel widget, wherein the carousel widget displays a content card to a user, wherein the content switch comprises switching a first content card with the content card; comparing the timeframe to a time threshold; and based on said comparing, determining whether or not to perform a responsive action, wherein the responsive action comprises blocking a functionality that is associated with the content card or releasing a previously set blockage of the functionality.

Abstract: A method, product and system are provided for determining estimated quality scores in digital content distribution systems. The method comprises, based on monitoring of engagements and conversions, determining a segment-specific estimated quality score of a given traffic; determining an observation-based pair-specific quality score for the given traffic and for a specific campaign; and determining, based on the segment-specific estimated quality score and based on the observation-based pair-specific quality score, a pair-specific estimated quality score of the specific campaign for the given traffic segment indicating an estimated quality score of the specific campaign when presented in the given traffic segment.