Abstract: A computer system and method provide networked computer users with information about which other users are task proximate to the user, thereby facilitating spontaneous communications regarding task-related, or other, issues. The information about other users is displayed in a user interface window on each computer that presents a visual representation of each user who is task proximate to the user operating the computer. Task proximity to other users may change as the user context switches between applications, and the user interface window is updated accordingly. Task proximity is determined individually by different applications. One exemplary system architecture for providing the information includes a person object representing each user, and storing the visual representation of the user. An encounter window on each computer displays the visual representations. A number of encounter-aware applications may execute on each computer.

Abstract: A system and method provides each networked computer user with a user interface displaying visual representations of selected other computer users, generally of those workers in the user's workgroup, and further provides communication mechanisms for efficiently and easily contacting any of the displayed workers. The visual representations of the other users are frequently updated to indicate the activity level of these users. These activity level cues help users predict if the other users are likely to be available for an interaction. The user interface also includes a display portion and mechanism for storing data files and the like so that all workgroup members may accumulate a set data files commonly used by the workgroup, and may transfer files in this manner to other workgroup members. The data files may be stored in association with specific interactive discussion windows, known as chat rooms, or directly in the user interface.

Abstract: Disclosed is a method for purifying Interleukin-10 (IL-10). The method is comprised of subjecting an IL-10 containing solution to cation exchange chromatography, anion exchange chromatography, hydroxyapatite chromatography, and gel filtration chromatography. The present invention is also comprised of a process for separating different IL-10 dimers present in a protein fraction from each other by subjecting the protein fraction to hydroxyapatite chromatography. The present invention is also comprised of a process for separating variants of a protein differing in an N-terminal amino acid sequence present in a protein fraction from each other by subjecting the protein fraction to hydroxyapatite chromatography.

Abstract: An apparatus and method of operating a fluidized bed reactor for combusting refuse derived fuel is disclosed. The reactor includes a fluidized furnace section 30 and stripper/cooler section 80. A downwardly sloping grid 28 extends across the furnace section 30 and stripper/cooler section 80 to a drain 78 in the stripper/cooler section 80, and directional nozzles 38 disposed in the grid fluidize the beds in the furnace section 30 and stripper/cooler section 80 and forcibly convey relatively large particulate material across the grid 28, through the furnace section 30 and stripper/cooler section 80, and to the drain 78 for disposal. A refractory layer 36 is provided along the grid 28 surface to reduce the height of the nozzles 38 within the furnace section 30, thereby helping to prevent relatively large particulate material from becoming entangled with or stuck to the nozzles 38.

Abstract: An apparatus and method of operating a fluidized bed reactor for combusting refuse derived fuel is disclosed. The reactor includes a fluidized furnace section 30 and stripper/cooler section 80. A downwardly sloping grid 28 extends across the furnace section 30 and stripper/cooler section 80 to a drain 78 in the stripper/cooler section 80, and directional nozzles 38 disposed in the grid fluidize the beds in the furnace section 30 and stripper/cooler section 80 and forcibly convey relatively large particulate material across the grid 28, through the furnace section 30 and stripper/cooler section 80, and to the drain 78 for disposal. A refractory layer 36 is provided along the grid 28 surface to reduce the height of the nozzles 38 within the furnace section 30, thereby helping to prevent relatively large particulate material from becoming entangled with or stuck to the nozzles 38.

Abstract: A method for purifying Interleukin-10 (Il-10) from a eukaryotic cell culture medium. The method is comprised of subjecting IL-10 containing cell culture medium to cation exchange chromatography, anion exchange chromatography, hydroxyapatite chromatography, and gel filtration chromatography. The present invention is also comprised of a process for separating different IL-10 dimers present in a protein fraction from each other by subjecting the protein fraction to hydroxyapatite chromatography. The present invention is also comprised of a process for separating variants of a protein differing in an N-terminal amino acid sequence present in a protein fraction from each other by subjecting the protein fraction to hydroxyapatite chromatography.