Abstract: Sharper edges are obtained in silver halide wash-off films for tanning development when from 5 to 60% of the unhardened gelatin binder in one or more layers is replaced with a synthetic amphoteric polymer consisting essentially of at least one of each of three constituents: (a) carboxylic acid, (b) alkyl primary amine, and (c) secondary and/or tertiary amine, the amphoteric polymer having an isoelectric point of from 4 to 8.

Abstract: A piston for internal combustion engines made of a light alloy and comprising a skirt portion and a head portion, having a ceramic insert adapted on the head portion and connected to same by mechanical locking. The ceramic insert is provided with pores at least on the portion engaging the piston head. The pores have a size which enable them to be filled with the light alloy during the manufacture of the piston by the squeeze casting method.

Abstract: Intermediates of the formula ##STR1## are disclosed. These compounds are useful in preparing substituted peptide compounds which possess hypotensive and analgesic activity.

Abstract: A positioning apparatus for locating conductor wires of a cable over mounting pads on a substrate is characterized by a base having a recess into which the conductors are introduced. The base has grooves which support the conductor wires in parallel. A portion of the conductor wires extend cantilever fashion past the forward edge thereof. A cover has an array of resilient fingers which impart a biasing force to extending wires of a multiconductor cable to urge these wires into contact with conductive mounting pads provided on a substrate as the base and cover are drawn together.

Abstract: A cursor control device (10) is provided which has a touch pad (14) formed of individual conductive plates (16) forming sectors of a circle. A user's touch on a dielectric layer (18) overlying the plates (16) is detected by individually charging and discharging each of the sector plates in a sequential manner to determine the increased capacitance, if any, of each sector plate. A microprocessor assigns each of the sector plates a relative X and Y weighting as a function of its angular position in the touch pad which are combined with the individual plate capacitance readings to calculate the relative X and Y position of the touch with respect to the origin (28) of the touch pad. Cursor control signals proportional to the relative X and Y values, plus a Z value proportional to the area of touch, if desired, are provided to the keyboard (12) of a displaying computer.

Abstract: There is disclosed a protective enclosure for hypodermic syringe needle formed by a tubular sleeve sized for friction fitting engagement over the barrel portion of the syringe, a needle guard portion at the opposed end thereof. The needle guard including a central needle channel traversing the same, and the needle guard being spaced from the tubular sleeve a distance such that the tip end of the syringe needle lies within the confines of the central needle channel in a normal resting position thereof. The sleeve and needle guard are connected by two pair of pivotally movable arms which operate to permit the needle to pass through the central channel during injection, and rest in a needle pocket when injection has been completed.

Abstract: New X-ray contrast agents are provided which are alkylammonium complexes of diatrizoic acid having the structure ##STR1## X-ray contrast medium containing the above X-ray contrast agent and a carrier therefor such as a liposome carrier, and a method for the X-ray visualization of body cavities and organs are also provided.

Abstract: Candida albicans has been transformed by the insertion of a plasmid comprising a fragment of DNA from Candida albicans containing the intact ADE 2 gene.

Abstract: The method of surfacing the heater of a furnace for optical fiber drawing allows elimination of defects in the inner heater surface, which defects give rise to particle emission towards the preform. This is achieved by depositing a thin layer of a mixture of oxides compatible with the material composing the heater.

Abstract: 7-Thiabicycloheptane substituted diamide and congener prostaglandin analogs are provided having the structural formula ##STR1## wherein m is 1 to 4; A is --CH.dbd.CH-- or --CH.sub.2 --CH.sub.2 --; n is 1 to 5; R is CO.sub.2 H, CO.sub.2 alkyl, CO.sub.2 alkali metal, CO.sub.2 polyhydroxyamine salt, --CH.sub.2 OH, ##STR2## wherein R.sup.3 and R.sup.4 are the same or different and are H, lower alkyl, hydroxy, lower alkoxy or aryl, at least one of R.sup.3 and R.sup.4 being other than hydroxy and lower alkoxy; p is 1 to 4; Z is ##STR3## q is 1 to 12; R.sup.1 is H or lower alkyl; and R.sup.3 is H, lower alkyl, lower alkenyl, lower alkynyl, aryl, arylalkyl, lower alkoxy, aryloxy, arylalkyloxy, amino, alkylamino arylamino, arylalkylamino, ##STR4## (wherein n' is 0, 1 or 2), alkylaminoalkyl, arylaminoalkyl, arylalkylaminoalkyl, alkoxyalkyl, aryloxyalkyl or arylalkoxyalkyl.The compounds are cardiovascular agents useful, for example, in the treatment of thrombotic disease.

Abstract: A process for continuous plasmapheresis, which process comprises conducting blood over a microporous membrane in reciprocatory pulsatile flow, and preferably further comprises reducing the transmembrane pressure difference to below zero during each forward and reverse flow. Apparatus for carrying out the process are also disclosed.

Abstract: A block of dimethylterephthalate having a needle-like crystal structure. The block is easily cleavable, and has a reduced tendency to fuse to other blocks when subjected to bag-stacking pressure.

Abstract: Photopolymer positive surprint color proofing film based on epoxy acrylate monomer exhibits low dot gain, low time dependence of toning and good tonal range. Binder can be methylmethacrylate/ethyl acrylate/acrylic acid copolymer, preferably crosslinked with zinc ions and plasticized with a second acrylate monomer and a mixture of triacetin and trimethylol propane.

Abstract: The disclosure involves an X-ray daylight cassette with shortened unloading times. The cassette, which has a film insertion slot on one side, contains two intensifying screens, one of which is affixed to the pressure plate so that the screen has edge zones that are not bonded to the pressure plate on the two long dimensions and optionally, on the short dimension opposite the film insertion slot.

Abstract: Catalytic transhalogenation of haloaromatics according to the equation:C.sub.z F.sub.a X.sub.b N.sub.e L.sub.1 +C.sub.z F.sub.c X.sub.d N.sub.e L.sub.2 .fwdarw.C.sub.z F.sub.a+1 X.sub.b-1 N.sub.e L.sub.1 +C.sub.z F.sub.c-1 X.sub.d+1 N.sub.e L.sub.2wherein:when C.sub.z is a benzene derivative, a+b=5; e=0; c+d=5; z=6;when C.sub.z is a pyridine derivative, a+b=4; e=1; c+d=4; z=5;when C.sub.z is a naphthalene derivative, a+b=7; e=0; c+d=7; z=10; andwhen C.sub.z is a biphenyl derivative, a+b=9; e=0; c+d=9; z=12;L.sub.1 and L.sub.2, alike or different, are selected from F, Cl, Br, H, CN, C.sub.n F.sub.2n+1, and C.sub.6 F.sub.5 ;X is Cl, Br, or I when C.sub.z is a benzene derivative; andn is 1 to 12. This method is a novel route to known haloaromatic compounds.

Abstract: Miniature thermal fluid flow sensors of the airfoil type are made in batch form by forming the thermal fluid flow sensors on a thin sheet of material and bonding the sheet over an array of duct structures and dicing the individual sensors and duct structures apart. In one thermal flow sensor configuration, a flow heater is dispsoed inbetween first and second thermal flow sensors in heat exchanging relation therewith. A third thermal flow sensor is disposed upstream of the others out of heat exchanging relation with the heater for operation of the heater at a certain temperature above that sensed by the third sensor. In the low flow regime, flow is measured by the difference between the outputs of the first and second sensors, whereas in the high flow regime, the power required to maintain the temperature of the heater serves as a measure of the flow.

Abstract: A method and apparatus for wideband frequency discrimination uses a first power divider for dividing an input signal into first, second and third output signals. First and second delay circuits are provided for receiving the first and second output signals, respectively, and in response thereto generate time-delayed versions of these signals. A second power divider is connected to the first and second delay circuits and to the first power divider for receiving the time-delayed versions of the first and second output signals and for receiving the third output signal and in response thereto generating a vector sum output of these signals. Signal processing circuitry is provided to process the vector sum output to generate a frequency-discriminated signal.

Abstract: An electrical connector adapted to be mounted on a circuit board, said connector having at least two legs, each of said legs being adapted to fit snugly into a corresponding hole on said circuit board, each leg having a cross section perpendicular to its long axis which is a closed geometric shape having a major axis substantially perpendicular to a minor axis, the length of said major axis being greater than the diameter of the corresponding mounting hole in the circuit board and the length of the minor axis being somewhat less than the diameter of the corresponding mounting hole in the circuit board, and a process for securing a contact wire within a plastic connector comprising ultrasonically melting a portion of the plastic in contact with said wire along a portion of the length of said wire and then allowing the plastic to solidify.

Abstract: 5,6-Epoxy-7-oxabicycloheptane substituted diamide prostaglandin analogs are provided having the structural formula ##STR1## wherein A is --CH.dbd.CH-- or --CH.sub.2 --CH.sub.2 --; n is 1 to 5; R is CO.sub.2 H, CO.sub.2 alkyl, CO.sub.2 alkali metal, CO.sub.2 polyhydroxyamine salt or ##STR2## q is 1 to 12; and R.sup.1 is H, lower alkyl, lower alkenyl, lower alkynyl, aryl, arylalkyl, lower alkoxy, aryloxy, arylalkyloxy, amino, alkylamino arylamino, arylalkylamino, ##STR3## (wherein n' is 0, 1 or 2), alkylaminoalkyl, arylaminoalkyl, arylalkylaminoalkyl, alkoxyalkyl, aryloxyalkyl or arylalkoxyalkyl.The compounds are cardiovascular agents useful, for example, in the treatment of thrombotic disease.

Abstract: A hydroxy functional urethane modified polyester resin and solvent-based thermosetting coating composition comprising said resin and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as a hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer suitable for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional urethane modified polyester resin is the product of polymerization of lactone monomers in the presence of hydroxy-containing urethane modified polyester precursor. The polymerization reaction mixture comprises between about 10 and about 80 weight percent the hydroxy-containing urethane modified polyester precursor and between about 90 and about 20 weight percent lactone monomers.