Abstract: A test system having an improved physical layout and electrical design allows the 1/f noise of metal interconnects to be measured at levels close to that of Johnson or thermal noise. A detailed description of examples of operation of the test system provides evidence of the effectiveness of the test system in minimizing system noise to a level significantly lower than Johnson noise. This permits quantitative measurment of the noise contribution attributable to variations in cross-sectional area of connections for various applications and for qualitative prediction of electromigration lifetimes of metal films, particularly aluminum, having different microstructures. The test system includes an enclosure which includes several nested groups of housings including a sample oven within a device under test box which is, in turn, contained within the system enclosure.

Abstract: Bleaching compositions comprising peroxy acid bleach precursors preferably based on acetylated pentose, hexose or lactose.

Abstract: An electrical power switching device employing a rotary disc driven by an actuation means whose position is selected by a control means where disc contacts engage and disengage stationary contacts where the stationary contacts are deflected away from the disc contacts by separation ramps thereby opening the current path and an arc plate is used on the disc to control arc energy. A pair of interrupter contacts are placed in series with the rotary disc contacts where abnormally high currents cause the interrupter contacts to separate and open the current path where slot motors and/or arc plates are used to dissipate the damaging electrical arcs as the contacts make and break.

Abstract: A bypass contactor usable in a solid state motor starter for shunting current around a fully-conducting solid state switching device comprising an electromagnetic contactor housed in a molded insulating enclosure having a plurality of bridging contacts movable into and out of engagement with a pair of stationary contacts to provide plural parallel current paths within the contactor, the stationary contacts having rigid terminal portions projecting externally of the insulating enclosure connectable to the heat sinks of the solid state motor starter in a preferred manner to suspend the contactor above the panel, permitting other components to be mounted below the bypass contacts. Alternate embodiments have the contactor mounted to the same support as the starter power pole component assembly and electrically connected thereto by rigid preformed connectors or flexible braided straps.

Abstract: A process for the separation of streptokinase from contaminating proteins in a streptokinase-containing mixture, which comprises treating the mixture with a reducing agent to reduce disulphide bridges in the contaminating proteins to free thiol groups, contacting the mixture with a reagent R-X wherein R is a group capable of reacting with a free thiol group and X is a group R.sup.1 capable of reacting with a free thiol group or is a thiol-containing matrix, and thereafter separating the resulting chemically modified contaminating proteins from the mixture to provide streptokinase in a form substantially free of contaminating proteins.

Abstract: An electrical contractor device (80) for controlling the flow of electrical power from a source of electrical power to an electrical device according to a command signal from a controller utilizing a rotary disc assembly (90) rotated by an actuator (169) where the rotary disc assembly (90) is comprised of a rotary disc (100) supporting a disc conductor (102) having a pair of contact pads (106, 108) joined by a pair of conductor legs (109, 113) and a center section (111) where the conductor legs (109, 113) are parallel and offset one from the other straddling an axis of rotation (103) where high flow of electrical current through the disc conductor (102) generates an electro-magnetic torque in the rotary disc assembly (90).

Abstract: A hybrid plasminogen activator which comprises the five kringle domains of plasminogen linked to the B-chain of t-PA or u-PA via an amino acid sequence comprising, respectively, the t-PA cleavage site between residues 275 and 276 and the cysteine residue 264 of t-PA or the u-PA cleavage site between residues 158 and 159 and the cysteine residue 148 of u-PA, or a derivative of a plasminogen activator comprising the serine protease domain of t-PA or u-PA, in which the catalytic site essential for plasminogen activator activity is blocked by a 2-aminobenzoyl group substituted in the 3- or 4-position with a halogen atom and optionally further substituted with one or more weakly electron-withdrawing or electon-donating groups, wherein the pseudo first order rate constant for hydrolysis of the derivative is in the range 6.0.times.10.sup.-5 to 4.0.times.10.sup.-4 sec.sup.-1 when measured in a buffer system consisting of 0.05M sodium phosphate, 0.1M sodium chloride, 0.

Abstract: A remote control residential and commercial lighting and appliance branch circuit breaker provides both overload current protection and load management. Structure is provided enabling packaging in a three-quarter inch width case, including a first set of contacts in the case provided by a pair of separable overload breaker contacts, trip structure in the case for causing separation of the overload breaker contacts in response to overload currents therethrough, a second set of contacts in the case provided by a pair of switching relay contacts having open and closed conditions and electrically connected in series with the overload breaker contacts, and an actuator in the case energizable to mechanically actuate the switching relay contacts. Feedback circuitry is included providing status indication of the condition of the switching relay contacts. Structure is provided for reducing actuator and spring requirements and sizes.

Abstract: Molded case circuit breaker having collapsible toggle linkage with rectangular cross section knee pin non-rotatably held within open rectangular slots in upper link, bifurcated movable contact fingers loosely guided for pivotal movement about fixed pin to break contact welds, helical compression springs biasing bifurcations against faces of a stationary connector, trapezoidal cross section shaft biasing shaft against a fixed corner of clamping strap and frame, increasing clamping force and increasing tool clearance, operating handle which changes pivot point moving to RESET position, reducing lateral force component of operating springs for reliable return of handle to OFF position, dual stops for movable contact fingers to spread impact forces along fingers, greater contact separation in poles not containing operating mechanism, slot motor laminations providing metal reinforcement to separate arc chamber housing which is cooperatively interlocked with base to distribute structural strength, terminal cover wi

Abstract: A linear acting ball latch is released by a rotary latch release member in the form of a rotor for a high torque, short stroke rotary electric motor which is electrically energized through a capacitor discharge system to release the latched member for spring biased movement into engagement with a bridging contact, thereby forcing the contact open from stationary contacts. A clapper type armature drives the contacts between open and closed positions through tubes, one of which extends through the latch mechanism. The tubes have spring biased plungers connected with the movable contact member to provide a low gradient spring force to the contacts permitting separation by the latch tube assembly and providing contact pressure when the magnetic operator closes the contacts. A manually operable handle and reset cam are disposed over the rotary latch mechanism and have mechanical connection with the latch release rotor to provide for manual operation of the release and for manual resetting of the latch mechanism.

Abstract: A binary complex between streptokinase and plasminogen is prepared in which the catalytic site essential for fibrinolytic activity is blocked by a group which is removable by hydrolysis such that the pseudo-first order rate constant for hydrolysis of the complex is in the range 10.sup.-6 sec.sup.-1 to 10.sup.-3 sec.sup.-1 in isotonic aqueous media at pH 7.4 at 37.degree. C. The complex is preferably a p-anisoyl streptokinase/plasminogen complex without internal peptide bond cleavage. The complex is useful in the treatment of venous thrombosis.

Abstract: A coherent lightwave transmitter includes a relatively low power, single frequency laser which provides an injection locking signal to a plurality of higher power lasers located in separate, parallel optical paths. A modulator is interposed between the single frequency laser and the higher power lasers, and the outputs of the latter are added constructively to form a high power transmitter output. Feedback control of the optical path lengths to maintain constructive interference is also described.

Abstract: A derivative of a fibrinolytic enzyme in which the catalytic site on the enzyme which is responsible for fibrinolytic activity is blocked by a human protein attached thereto by way of a reversible linking group.

Abstract: A derivative of a fibrinolytic enzyme in which the catalytic site on the enzyme which is responsible for fibrinolytic activity is blocked by a human protein attached thereto by way of a reversible linking group.

Abstract: Apparatus for monitoring structures and structural members for overloads has an elongated frangible closed ended tube containing a dense, visible liquid. The tube includes a central reduced cross-sectional area for forming a weak portion thereof. The tube is enclosed in a transparent shield and the tube and shield resiliently attached to the structure to be monitored. The frangible tube is designed to cause the weakened area to fracture when the tube and structure are exposed to a preselected level of an acceleration force, causing the liquid to be deposited in the shield as an indication of an overload.

Abstract: A fibrinolytically active protein conjugate comprising at least one optionally blocked fibrinolytic enzyme linked by way of a site other than the catalytic site responsible for fibrinolytic activity to at least one human protein.Processes from making the conjugates and pharmaceutical compositions containing them are also described.

Abstract: A derivative of a fibrinolytic enzyme in which the catalytic site on the enzyme which is responsible for fibrinolytic activity is blocked by a human protein attached thereto by way of a reversible linking group.

Abstract: Apparatus including a semiconductor laser source and means for stabilizing the frequency of the laser. A feedback signal is provided by means such as a Fabry-Perot interferometer, which signal is coupled simultaneously to two feedback loops. One loop provides high frequency control of the drive current while the other loop provides low frequency control of the laser temperature.

Abstract: A derivative of streptokinase-human plasminogen activator complex, in which the active catalytic site essential for fibrinolytic activity is blocked by a 2- or 4-aminobenzoyl group, is useful in treating venous thrombosis.The blocking group is removable by hydrolysis such that the first order rate is in the range 0.7.times.10.sup.-5 sec.sup.-1 to 2.5.times.10.sup.-5 sec.sup.-1 in isotonic aqueous media at pH 7.4 at 37.degree. C.

Abstract: An avalanche photodetector useful at wavelengths as long as 1.7 microns with low noise is achieved. The crystal used includes successive layers of p-type indium phosphide, n-type indium phosphide, and n-type indium gallium arsenide. An appropriate total of fixed charges in the n-type indium phosphide and a graded bandgap heterointerface region are important for the improved results.