Abstract: An integrated software architecture for a highly parallel multiprocessor system having multiple tightly-coupled processors that share a common memory efficiently controls the interface with and execution of programs on such a multiprocessor system. The software architecture combines a symmetrically integrated multithreaded operating system and an integrated parallel user environment. The operating system distributively implements an anarchy-based scheduling model for the scheduling of processes and resources by allowing each processor to access a single image of the operating system stored in the common memory that operates on a common set of operating system shared resources. The user environment provides a common visual representation for a plurality of program development tools that provide compilation, execution and debugging capabilities for multithreaded user programs and assumes parallelism as the standard mode of operation.

Abstract: The present invention provides apparatus and methods for introducing spinal anesthesia directly into the subarachnoid space of a patient. One apparatus and method utilizes a small gauge spinal needle for penetrating the dura; the other utilizes a small gauge catheter with an internal stylet having a non-piercing pencil point to spread apart the filaments of the dura wall. An introducer having a rounded tip is also provided for guiding and supporting the spinal needle or catheter, as force is applied thereto, to cause the same to penetrate the dura.

Abstract: The present invention provides apparatus and methods for introducing spinal anesthesia directly into the subarachnoid space of a patient. One apparatus and method utilizes a small gauge spinal needle for penetrating the dura; the other utilizes a small gauge catheter with an internal stylet having a non-piercing pencil point to spread apart the filaments of the dura wall. An introducer having a rounded tip is also provided for guiding and supporting the spinal needle or catheter, as force is applied thereto, to cause the same to penetrate the dura.

Abstract: An integrated software architecture for a highly parallel multiprocessor system having multiple tightly-coupled processors that share a common memory efficiently controls the interface with and execution of programs on such a multiprocessor system. The software architecture combines a symmetrically integrated multithreaded operating system and an integrated parallel user environment. The operating system distributively implements an anarchy-based scheduling model for the scheduling of processes and resources by allowing each processor to access a single image of the operating system stored in the common memory that operates on a common set of operating system shared resources. The user environment provides a common visual representation for a plurality of program development tools that provide compilation, execution and debugging capabilities for multithreaded user programs and assumes parallelism as the standard mode of operation.

Abstract: An ultra-high solids, stable, liquid, highly alkaline caustic cleaner containing 40 to 80 weight percent total solids having 5 to 42 weight percent of an inorganic particulate material dispersed therein, such as an alkaline silicate, that is nonreactive and insoluble in the caustic of the composition.

Abstract: An improved acidic metal working lubricant composition that is adapted to deposit oil upon the metal surfaces being treated at an acidic pH, which composition includes an alkaline activated surface active agent to promote cleansing of the deposited oil from the metal surfaces during alkaline cleaning of the metal surfaces after metal working without affecting lubricant performance during metal working.

Abstract: A beverage cooler is provided that includes a cylindrical freezer pack insert placed into a cup with cover to keep a beverage container colder longer. In a modification the cylindrical freezer pack insert includes removable sections to change its size and removable plugs so as to put coolant fluid therein.

Abstract: Provided is an underwater pressure regulator comprising a high and a low pressure chamber, an inlet to the high pressure chamber and at least one outlet port associated with the low pressure chamber. A valve assembly including a valve seat is interposed between the high and low pressure chambers to control the flow of air between the chambers. A coil spring maintains the valve in open position when pressure in the low pressure chamber decreases. An oil reservoir responds to ambient water pressure via a flexible diaphragm to maintain the outlet pressure, i.e., the secondary pressure at a constant level above the ambient pressure at different depths. A piercing member serves to perforate the diaphragm upon excessive expansion of the latter due to high pressure leakage within the regulator system, oil being discharged, under pressure, through the perforated diaphragm, whereupon the regulator then becomes a conventional water-filled unit.