Abstract: A plasma source may include a plasma chamber, where the plasma chamber has a first side, defining a first plane and an extraction assembly, disposed adjacent to the side of the plasma chamber, where the extraction assembly includes at least two electrodes. A first electrode may be disposed immediately adjacent the side of the plasma chamber, wherein a second electrode defines a vertical displacement from the first electrode along a first direction, perpendicular to the first plane, wherein the first electrode comprises a first aperture, and the second electrode comprises a second aperture. The first aperture may define a lateral displacement from the second aperture along a second direction, parallel to the first plane, wherein the vertical displacement and the lateral displacement define a non-zero angle of inclination with respect to a perpendicular to the first plane.

Abstract: An external fixation system for treatment of bones includes first and second clamps for locking pins that are inserted into bones. At least one clamp includes a socket having a recess. An attachment post includes a distal portion configured to be inserted into the socket recess. A tightening nut is rotationally coupled to a shaft of the attachment post and has an internal threading adapted to be threaded to the external threading of the socket. When the tightening nut is rotated to cause the distal portion of the post to be further inserted into the recess, the sides of the distal portion of the post create an interference fit with the sides of the socket recess to lock the post to the first clamp.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to determine total audience ratings. An example apparatus includes metrics generator circuitry to generate a first audience size for media accessed by first devices of a first media platform at a first level of aggregation, the first level of aggregation corresponding to the media accessed on a first television network and on a first website, generate a second audience size for the media accessed by the first devices of the first media platform at a second level of aggregation, the second level of aggregation corresponding to the media accessed on the first television network and accessed on the first website and a second website, comparator circuitry to compare the first audience size to the second audience size, adjustor circuitry to reduce the first audience size based on the second audience size, and audience determination circuitry to determine a total audience size.

Abstract: A variable length headless compression screw insertion system includes a compression screw and a driver assembly for driving the compression screw into a bone. The compression screw has a bone screw and a compression sleeve coupled to the bone screw. The bone screw includes a proximal end having an external threading threadably received in the compression sleeve, and the compression sleeve includes a proximal end having a predefined drive feature and an external threading. The driver assembly includes a sleeve coupler adapted to threadably receive the external threading of the compression sleeve. A ram driver is coupled to the sleeve coupler and has a predetermined length such that its distal end is shaped to contact the proximal end of the bone screw to prevent translation of the bone screw relative to the compression sleeve.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to determine total audience ratings. An example apparatus includes metrics generator circuitry to generate a first audience size for media accessed by first devices of a first media platform at a first level of aggregation, the first level of aggregation corresponding to the media accessed on a first television network and on a first website, generate a second audience size for the media accessed by the first devices of the first media platform at a second level of aggregation, the second level of aggregation corresponding to the media accessed on the first television network and accessed on the first website and a second website, comparator circuitry to compare the first audience size to the second audience size, adjustor circuitry to reduce the first audience size based on the second audience size, and audience determination circuitry to determine a total audience size.

Abstract: Systems, methods, and computer-readable programs are provided for authentication of unencrypted message(s) transmitted between two devices of a power grid over a public communications network are provided. The authentication uses a quantum-based secret key and an initialization vector generated from a quantum random number to generate a payload for a transmission packet. The quantum-based secret key is shared between the transmitting device and the receiving device. When the receiving device receives the packet, the receiving device uses the shared quantum-based secret key and the initialization vector to verify whether the payload in the packet is authentic.

Abstract: Font recommendation techniques are described that provide recommendations of fonts based on a variety of factors, automatically and without user intervention in real time. This is performable in a variety of ways by addressing a wide range of considerations as part of machine learning, examples of which include context, popularity, similarity, customization, and topic compatibility.