Abstract: A monolithic pressure sensitive silicon integrated circuit is formed by first providing a localized etch-stop layer on one surface of the silicon chip, then growing successive epitaxial layers of opposite conductivity types over this surface. In the upper of the two layers, there is formed a bridge of four piezoresistors overlying the periphery of the etch-stop layer and the conditioning circuitry for amplifying the output of the bridge including both lateral and vertical junction transistors. The back surface of the chip is etched anisotropically to form a cavity that leaves a thin diaphragm underlying the bridge of the four piezoresistors.

Abstract: A pressure sensor includes a three part package including a housing member defining two spaced-apart chambers, a bottom member providing the bottom wall of one of the chambers, and a top cover member hermetically sealing the two chambers from one another and including a port for admission of gases into one of the chambers. A pressure sensing element is disposed in the chamber having the port and mounted on the bottom member, and a signal processing element is mounted in the other chamber. Electrical connections between the two elements are by means of leads which extend into each chamber and pass through a wall separating the chambers. A low temperature differential between the two elements is provided by extending one of the leads from the other one chamber to a position directly underlying and in intimate contact with the bottom surface of the processing element in the other chamber.

Abstract: A continuous, liquid phase method for producing a polymer having a predetermined number of conjugated diene units per molecule in which (a) a first monomer stream is contacted with an organo-lithium compound, in a manner to intimately mix increments of monomer, containing the predetermined number of moles of conjugated diene, with each mole of organo-lithium and continuously mix and move the mixture through a first, elongated reaction zone to react the predetermined number of moles of conjugated diene with one mole of organo-lithium, (b) mixing the effluent from (a) with an alkyl-substituted aromatic hydrocarbon, an organo-alkali metal of potassium, rubidium or cesium and a tertiary amine to form a complex-initiator of the aromatic hydrocarbon, the alkali metal and the amine, (c) mixing the effluent from (b) with a second stream of monomer, in a manner to intimately mix increments of monomer, containing the predetermined number of moles of conjugated diene, with each mole of complex-initiator and continuously

Abstract: A limb protective covering is provided having a tubular sleeve of plastic and an integral hand or foot receiving member and an elongate closure strap heat sealed along a transverse line intermediate its ends to the sleeve, and having an overlying stabilizing loop over the closure strap at the heat sealed line.

Abstract: A diaphragm is formed in a silicon chip by etching a rectangular cavity in one side thereof and piezoresistive resistors are formed in the other surface of the chip to sense stress changes on the diaphragm due to pressure changes. At least one resistor is placed along the edge of the diaphragm where a sharp stress peak occurs. To avoid the problem of inaccurate placement of the resistor relative to the peak, the resistor is slanted with respect to the stress ridge at a small angle of 10.degree. to 20.degree.. This makes the resistor placement and cavity alignment much less critical thereby assuring greater uniformity of response from one sensor to another at the expense of signal size for a given pressure change on the device.

Abstract: A limb protective covering is provided having a tubular sleeve of plastic and an integral hand or foot receiving member and an elongate closure strap having a panel intermediate its ends fastened to the sleeve by fastening to an inner rigidifying panel with the sleeve sandwiched between.

Abstract: Compounds having properties as inhibitors of protein synthesis are disclosed, of the general formula(p).sub.m --(5'--A--2'--p).sub.n --(A).sub.xwhereinp represents the phosphate group (orthophosphate),m is 0, 2, or 3A represents adenosine,n is from 2 to 5,x is 0 or 1,said compound containing at least three adenosine residues, the figures 5' and 2' signifying the carbon atoms of the ribose ring to which the respective phosphate groups p are attached.Compounds of particular interest are ApApA and its phosphorylated derivatives ppApApA and pppApApA. The substances may be prepared by chemical synthesis or enzymatic synthesis. They may be incorporated in liposomes.