Abstract: Methods, systems, and apparatus for evaluating an advertisement. In one aspect, a method includes receiving an electronic file comprising an advertisement; receiving one or more ad space parameters associated with a publication; comparing one or more attributes of the advertisement with the one or more ad space parameters; generating results based on the comparison of the one or more attributes of the advertisement with the one or more ad space parameters; determining whether to accept the advertisement for publication based on the generated results; and altering at least one of the one or more attributes of an unaccepted advertisement such that it conforms with a corresponding ad space parameter.

Abstract: Methods, systems, and apparatus for evaluating an advertisement. In one aspect, a method includes receiving an electronic file comprising an advertisement; receiving one or more ad space parameters associated with a publication; comparing one or more attributes of the advertisement with the one or more ad space parameters; generating results based on the comparison of the one or more attributes of the advertisement with the one or more ad space parameters; determining whether to accept the advertisement for publication based on the generated results; and altering at least one of the one or more attributes of an unaccepted advertisement such that it conforms with a corresponding ad space parameter.

Abstract: Data in a database describe an application domain such as a satisfiability problem. The data are represented in a manner that expresses the structure inherent in the data and one such representation uses group theory and represents the data as one or more “augmented clauses,” where each clause has a pair (c, G) including a database element c and a group G of group elements g acting on it. A query is encoded in a group theory representation and is executed on the group theory representation of the data to identify database elements and associated group elements satisfying the query. If desired, the satisfying database elements are converted from the group theory representation to the native representation of the data.

Abstract: Data in a database describe an application domain such as a satisfiability problem. The data are represented in a manner that expresses the structure inherent in the data and one such representation uses group theory and represents the data as one or more “augmented clauses,” where each clause has a pair (c,G) including a database element c and a group G of group elements g acting on it. A query is encoded in a group theory representation and is executed on the group theory representation of the data to identify database elements and associated group elements satisfying the query. If desired, the satisfying database elements are converted from the group theory representation to the native representation of the data.

Abstract: Data in a database describe an application domain such as a satisfiability problem. The data are represented in a manner that expresses the structure inherent in the data and one such representation uses group theory and represents the data as one or more “augmented clauses,” where each clause has a pair (c, G) including a database element c and a group G of group elements g acting on it. A query is encoded in a group theory representation and is executed on the group theory representation of the data to identify database elements and associated group elements satisfying the query. If desired, the satisfying database elements are converted from the group theory representation to the native representation of the data.

Abstract: A straw and chaff spreader including a pair of counter-rotating spreader plates having fan-shaped blades attached to the top surface of each spreader plate. The spreader plates being located beneath the straw and chaff chute of a combine. A rear shield is mounted to the combine to the rear of the spreader plates. The shape of the blades and the direction of rotation of the spreader plates being selected to throw the straw and chaff received from the straw and chaff chute against the rear shield to propel the straw and chaff outwardly on either side of the combine.

Abstract: The spacer screw has a thread section which can be inserted into a base member, a head section which can be introduced into a structural member and has a thread, and a shank section arranged in between. According to the invention, the thread is provided with a series of slits which in turn is formed from recesses running transversely to the screw axis and interrupting the thread turn at constant distances. When the screw is used, the thread is screwed into the structural member, which, in contrast to the use of known screws, is effected without excessive force. In addition, this screwing-in process takes place independently of the screwing of the thread section into the base member. When the thread section is screwed into the base member and when the head section is screwed into the structural member, the slit-like recesses do in fact generate a draw-in resistance, the draw-through force of the thread of the head section being reduced by the magnitude of said draw-in resistance.

Abstract: In a preferred embodiment there is provided combine tooth having a tooth shaft and at the base of the shaft having a unitary continuous flange extending transversely to the longitudinal axis of the shaft, with a distal portion of the shaft extending substantially angularly laterally from an intermediate bend point, and there is additionally provided for combination with the tooth a combine belt-mountable base strip for mounting on top of the combine belt fixedly, the base strip having at each of opposite ends thereof a through aperture, one aperture at each of opposite ends, the holes each of hole diameter receivable of the tooth shaft and the structure of the base strip defining continuous with each hole a narrowed slot extending rearwardly having a slot width slightly less than the diameter of the tooth shaft through which slot the tooth shaft is pressable into the hole continuous therewith, and the underface of the base strip including spaced-apart ridges, there being a separate set of the spaced-apart rid