Abstract:
A polyvalent vaccine effective in immunization of bovines against infectious bovine rhinotracheitis virus (IBR), bovine viral diarrhea virus (BVD) and parainfluenza-3 virus (PI-3) is composed of a suspension, in a vehicle such as an aqueous solution of formaldehyde suitable for parenteral injection of the three viruses in killed form. The three viruses are separately propagated and subsequently suspended in aqueous solutions containing 0.4 percent by volume formalin, and the respective suspensions are maintained at a temperature of about 4*C. for 1 week. Portions, for example equal portions, of the three suspensions are combined to produce a polyvalent vaccine. An equal volume of an aqueous solution containing from 1 to 5 percent weight/volume of a soluble alginate, such as sodium alginate, having certain specified properties may be added to the vaccine as an adjuvant to enhance its effectiveness. Such polyvalent vaccines are adapted for parenteral administration in the vaccination of bovines.
Abstract:
.alpha.,.beta.-Unsaturated sulfonic acid salts are prepared by a one step synthesis involving reaction of a di-primary alkyl sulfone, an arylmethyl primary alkyl sulfone, an .alpha.-halo diprimary alkyl sulfone, or an .alpha.-haloarylmethyl primary alkyl sulfone with a carbon tetrahalide and a strong base. The sulfone substrate is reacted with a carbon tetrahalide represented by the formula CBr.sub.m Cl.sub.n F.sub.p where m and n are integers between 0 and 4 inclusive, p is an integer between 0 and 2 inclusive and m+n+p = 4 in the presence of the strong base to form a geminally .alpha.-dihalogenated intermediate and dihalocarbene. The geminally .beta.-dihalogenated intermediate reacts rapidly in situ with the strong base to form an .alpha.,.beta.-unsaturated sulfonic acid salt and a halide salt. The unsaturated sulfonic acid salt may be acidified to form the corresponding acid or reacted with a halogenating agent to form the corresponding acid halide. .alpha.,.beta.-Unsaturated sulfonic acid salts are useful detergents.
Abstract:
A portable, battery-powered, self-contained electroanesthesia device. A signal generator provides a sinusoidal, constant magnitude signal of fixed, preset frequency with relatively high accuracy and without recalibration each time the device is energized. The preset frequency characteristically produces electroanesthetic induction in a live subject with relatively high efficiency. An amplifier increases the power level sufficiently for producing electroanesthetic induction of the subject. Electrodes supply the amplified signal to tissue of the subject, there being provision for matching the impedance of said tissue of the subject to the amplifier for maximizing transfer of the amplified signal to said tissue. Circuitry is provided also for monitoring and limiting the power level of the signal supplied by said electrodes to the tissue.
Abstract:
CARBOHYDRATES SUCH AS STARCH AND CELLULOSE HAVING UNSUBSTITUTED PRIMARY HYDROXYL GROUPS ARE OXIDIZED WITH AN ALKALI METAL FERRATE, SUCH AS POTASSIUM FERRATE, TO YIELD PRODUCTS IN WHICH AT LEAST ONE OF THE PRIMARY HYDROXYL GROUPS IS CONVERTED TO AN ALDEHYDE GROUP. THE USE OF SUCH A FERRATE COMPOUND AS THE OXIDIZING AGENT PERMITS OXIDATION TO BE CARRIED OUT WITHOUT THE FORMATION OF CARBOXYL GROUPS, WITHOUT THE OXIDATION OF SECONDARY HYDROXYL GROUPS AND WITHOUT SCISSION OF CARBON TO CARBON BONDS IN THE CARBOHYDRATE MOLECULES. THE RESULTING PRODUCTS EXHIBIT IMPROVED PHYSICAL PROPERTIES AND MAY BE USED, FOR EXAMPLE, IN PAPER SIZING APPLICANTS OR AS CHEMICAL INTERMEDIATES IN THE PREPARATION OF OTHER USEFUL DERIVATIVES.