Abstract: A medical electrode adapted for providing electrical contact with a patient's skin and comprising:(a) a conductive member including means for connecting the medical electrode to an external electrical apparatus; and(b) interfacing means comprising a solid sheet of a conductive viscoelastic hydrophilic gel consisting essentially of(i) water;(ii) a water soluble magnesium or calcium salt; and(iii) an amount dispersed uniformly throughout the water of from about 2 to 35 wt % of a cross-linked polyethylene oxide, effective to form with the water a tacky surface viscoelastic adhesive solid;which hydrophilic gel is produced by subjecting a liquid film of an aqueous solution of the water soluble salt and a linear water soluble polyethylene oxide having a weight average molecular weight from about 0.05-10.times.10.sup.6 Daltons to an amount of high energy radiation effective to convert the liquid film to a sheet of adhesive viscoelastic solid.

Abstract: A medical electrode adapted for providing electrical contact with a patient's skin and comprising:(a) a conductive member including means for connecting the medical electrode to an external electrical apparatus; and(b) interfacing means comprising a solid sheet of a conductive viscoelastic hydrophilic gel which is a homogeneous aqueous mixture, substantially free of unbound water, monomers and cross-linking agents, consisting essentially of(i) water;(ii) an amount dissolved in the water of a water soluble electrolyte effective to reduce the transverse electrical resistance of the sheet to an impedance at 60 Hz of less than 1,000 ohms; and(iii) an amount dispersed uniformly throughout the water of from about 2 to 35 wt % of a cross-linked polyethylene oxide, effective to form with the water a tacky surface viscoelastic adhesive solid;which hydrophilic gel is produced by subjecting a liquid film of an aqueous solution having a viscosity of about 2-2,000.times.10.sup.

Abstract: A solid sheet of adhesive hydrophilic gel which is a homogeneous aqueous mixture, substantially free of unbound water, monomers and crosslinking agents, consisting essentially of an amount dispersed uniformly in water of from about 4 to 35 wt % of a crosslinked polyethylene oxide, effective to form with the water a tacky surfaced viscoelastic solid which sheet of hydrophilic gel is produced by subjecting a liquid film of an aqueous solution having a viscosity of about 2-2,000.times.10.sup.3 cps of a linear water soluble polyethylene oxide having a weight average molecular weight from about 0.02-6.times.10.sup.6 Daltons to an amount of high energy radiation effective to convert the liquid film to a sheet of the viscoelastic solid having an adhesive face.

Abstract: A process for preparing pyridine or alkyl substituted pyridines in high yield, comprises reacting a C.sub.2-5 -aldehyde, a C.sub.3-5 -ketone or a mixture thereof, ammonia and, optionally, formaldehyde, in the gas phase in contact with a fluidized or otherwise movable bed of a catalytically effective amount of a crystalline aluminosilicate zeolite catalyst in the acidic form and having a constraint index of about 1 to about 12, with an actual contact time of the reactants with the catalyst which is at least as great as said actual contact time when the reaction is conducted in a 1 inch diameter fluid bed reactor with a pseudo contact time of at least about 2.5 seconds.

Abstract: A seeding device to dispense seed suspended in a gel or other carrier medium in either a continuous stream or discrete pulses. A coulter opens a furrow of earth to the proper depth and seed carried in a gel or other suspension medium is delivered in a pulsed or continuous stream into the furrow which is then covered with earth by a trailing coverer. An auger delivers the seed in suspension and the speed of the auger is controlled to vary the volume of seed and gel or other suspension medium delivered. Circumferentially spaced cam lobes on a drive wheel control the frequency and therefore the row spacing of the seed suspension medium distributed in the pulse delivery mode.