Abstract: A helper entity monitors content on media channels established in respect of a network communication session. Upon a content-dependent trigger condition being met, the helper entity delivers advisory content over one or more of the channels.

Abstract: A group of novel pyrimidone compounds are inhibitors of the enzyme LDL PLA2 and therefore of use in treating atherosclerosis.

Abstract: A contact center uses a service system to establish communication over a data network, such as the internet, between customer endpoint systems and the endpoint systems of customer service representatives, CSRs, of the contact center. The service system establishes communication between endpoint systems by joining them to an appropriate communication session with an associated transport mechanism that allows the exchange of data across the network between the joined endpoint systems. For each communication session, a respective service instance and session instance are created. The service instance provides service specific behaviour whilst the session instance provides generic operations for adding and removing endpoint systems to the communication session. By specifying different service-specific behaviors, a range of corresponding customer services can be offered.

Abstract: A method is provided of establishing network communication later in time between a first endpoint entity accessing an information resource over a network and a second endpoint entity, such as a customer service representative system, associated with that resource. The method uses a service system that can set up a communication session and join endpoint systems to the session to enable them to communicate with each other the network. According to the method, upon the first endpoint entity indicating that it wishes to communicate with a second endpoint entity in the future, the service system generates and stores a session identifier for a communication session to be used in the future and passes a copy of the identifier over the network to the first endpoint entity.

Abstract: A service system associated with a web site establishes a respective communication session for each of at least selected web pages and joins to the session any party currently viewing the page. A sessions overview subsystem is notified of parties joining and leaving sessions and maintains a real-time database of current page sessions and the parties currently joined to each session. A user interface of the overview subsystem dynamically generates a sessions overview page from the real-time database and serves this page to a requesting permitted user, such as a customer service representative in a contact center associated with the service system. The permitted user can then select a specific session and request to be joined to it.

Abstract: A method is provided for inviting an assistant entity, such as a customer service representative acting through a endpoint system, into an existing network communication session established by a service system. The service system controls the joining of endpoint entities to the session and enables endpoint entities joined to the session to communicate with each other. The method involves a first party associated with an endpoint system already joined to the session, indicating to the service system that the presence of an assistant entity is required. The service system selects an appropriate assistant entity taking account of the current context of the communication session, and joins the selected assistant entity to the session.

Abstract: A content-provider entity provides content to media channels established in respect of a network communication session. The content-provider entity has a transport subsystem for establishing media channel connections to a session transport mechanism in accordance with channel type and connection details received by the entity. The content-provider entity also has a media subsystem providing a respective media handler of appropriate type for each media channel connection established by the transport subsystem. Each media handler is responsible for delivering media content of its associated type from a media source to the corresponding channel connection. A delivery controller of the media subsystem controls the selection and delivery of media content through the media handlers in dependence on context data supplied to the content-provider entity.

Abstract: Azetidinone derivatives of formula (I) in which R.sup.1 and R.sup.2, which may be the same or different, is each selected from hydrogen or C.sub.(1-8) alkyl; R.sup.3 is C.sub.(1-8) alkyl or C.sub.(3-8) cycloalkyl each of which may be optionally substituted; X is a linker group; Y is an aryl group; and n is 0, 1 or 2; and excluding benzyl (4-methylthio-2-oxo-azetidin-1-yl)acetate are inhibitors of the enzyme Lp PLA2 and are of use in therapy, in particular treating atherosclerosis.

Abstract: A method of assay for a ligand in a sample is described in which calibration occurs within the assay. This is achieved utilizing a measurement region and one or more calibration regions. In at least one of the calibration regions a non-zero signal results, either because of the presence of a calibration reagent or as a result of a binding reaction analogous to that which takes place in the measurement region.

Abstract: Compounds of formula (I) in which R.sup.1 and R.sup.2, which may be the same or different, is each selected from hydrogen, halogen or C.sub.(1-8) alkyl; R.sup.3 is aryl or aryl C.sub.(1-4) alkyl which may be optionally substituted; X is a linker group; Y is an optionally substituted aryl group; and n is 0, 1 or 2; are inhibitors of the enzyme Lp-PLA.sub.2 and thereof of use in treating atherosclerosis.

Abstract: A method of assay for a ligand in a sample is described in which calibration occurs within the assay. This is achieved utilizing a measurement region and one ore more calibration regions. In at least one of the calibration regions a non-zero signal results, either because of the presence of a calibration reagent or as a result of a binding reaction analogous to that which takes place in the measurement region.

Abstract: The present invention describes a method and apparatus for removal of meat from bones. Bones particularly suitable are round elongate bones, such as commonly found in the limbs of animals. The apparatus uses a collar where, as the collar travels along the length of the bone, meat is pushed aheat of the collar resulting in its separation from the bone. Various clamping and retaining means may be used in conjunction with the apparatus. It may also be desirable to sever any tendons connecting meat to the bone before effecting travel of the collar.

Abstract: A semi-permanent peripheral grinding wheel comprising ultrahard abrasives such as diamond or cubic boron nitride is provided which overcomes the serious problems caused by "chatter". The wheel comprises a hub mounting the ultrahard abrasive, the abrasive being resiliently depressible radially inwardly of the wheel. The wheel preferably has a radial static stiffness of no more than 1.5.times.10.sup.6 N/m per mm. of wheel width and a first radial natural frequency of at least 500 Hertz. The resiliency may be provided by rubber pads between the abrasive and the hub, or by mounting the abrasive on a hub made of resiliently deformable metal such as "RETIMET" (Registered Trade Mark) sponge-like metal.

Abstract: Pressure controlled milk termination means wherein the top of a diaphragm is connected with the milk line by a vacuum communication conduit and the bottom of the diaphragm with the air line, but the bottom of the diaphragm having an air bleed aperture leading thereinto so that there is a constant differential of pressure acting on the diaphragm and of sufficient magnitude to bias the diaphragm upwardly. The diaphragm has coupled to it a valve member which is effective in closing the air bleed aperture, and the arrangement is such that when the air bleed aperture is closed, vacuum is supplied to a cylinder containing a piston which, when it lifts, lifts the claw away from the cow which has just been milked, and at the same time closes the vacuum communication conduit leading from the claw to the milk line.

Abstract: A multiple re-entry compressor of the kind set forth in USA Patent application Ser. No. 335,162 now U.S. Pat. No. 3,869,220 is described having inter cooling between successive passes of the rotor blading. A further improvement is described in which variable aperture arcuate segmented flowpaths are provided.