Abstract: A nucleotide sequence encoding a recombinant peptide displaying the antigenicity of Human Immunodeficiency Virus (HIV) viral antigens is disclosed. The peptide comprises an antigenic segment having about 150 to about 400 amino acids corresponding to at least about 30 amino acids of the C-terminal of the gp120 domain and at least about 120 amino acids of the N-terminal of the gp41 domain.

Abstract: A process for preparing X-ray intensifying M' monoclinic tantalate phosphors by firing precursor oxides in a novel flux mixture of alkali metal sulfate/alkali metal or alkaline earth chloride/alkali metal metasilicate. Tantalate phosphors made in this manner have improved X-ray to light conversion efficiency. X-ray intensifying screens made from these phosphors have improved speed and can be used with good results with a plurality of X-ray film elements.

Abstract: Acetic acid is recovered from the mother liquor used to oxidize para-xylene to terephthalic acid by adding at least one organic compound having a melting point below 140.degree. C. and an atmospheric boiling point above 230.degree. C.

Abstract: A method is provided for preventing or reducing the risk of restenosis following angioplasty by administering pravastatin alone or in combination with an ACE inhibitor such as captopril or ceranapril, prior to, during and/or after angioplasty.

Abstract: Substituted imidazoles such as 2-butyl-4-chloro-1-[(2'-(1H-tetrazol-5-yl)biphenyl-4-yl)methyl]-5-(hydroxy methyl)imidazole and 2-butyl-4-chloro-1-[(2'-carboxybiphenyl-4-yl)-methyl]-5-(hydroxymethyl)imi dazole and pharmaceutically acceptable salts thereof are useful for treating central nervous system disorders, such as cognitive and learning disorders, mediated by angiotensin II.

Abstract: A multinodal bus network protocol used in communication systems employing tokens to indicate the next interface unit to transmit, with cojoining of token addressing and data in one trasmission, organization of interface units into logical rings whose token-passing sequence is a function of network topology, adaptive learning by each interface unit of the next unit to receive the token as well as the number of addressees in the ring, organization of interface units into groups where only one unit may answer for the entire group, and adaptive learning by each unit in a group of its predecessor in that group as well as the number of units in its group.

Abstract: A coating composition particularly useful in for forming exterior finishes on the exterior of vehicle parts, the binder of the composition which is in an organic liquid carrier is a polyesterurethane and a multifunctional organic polyisocyanate crosslinking agent; wherein the polyesterurethane is formed by reacting a hydroxy functional polyester with a hydroxy containing carboxylic acid and an organic polyisocyanate andthe multifunctional organic polyisocyanate crosslinking agent has at least three reactive isocyanate groups and may be blocked with a blocking agent; coated parts, laminates and composite structures made with the coating composition are also part of the invention.

Abstract: In a method and apparatus for linear transport of sheet and web material by piezotranslators, the longitudinal displacement is measured by an optical interferometer and the interferometer output is utilized to control the longitudinally acting piezotranslators.

Abstract: A process is disclosed for bonding blends of cellulosic fluff pulp and fusible synthetic pulp or fiber having a melting point less than 250.degree. C., by high-speed dielectric heating. The process works in the absence of any dielectric sensitizing material, but requires the resulting blend have a density between 0.005 and 0.50 g/cc so that the blend can be bonded in less than 15 seconds. The process is useful for producing disposable baby diapers, adult incontinence products and feminine pads.

Abstract: A method of adjusting the operation of bimodal optical networks in terms of propagation constants of guided modes in integrated optical devices, allowing a considerable number of out of tolerance devices to be recovered by depositing on the surface where the optical guides are manufactured, once the normal fabrication process is completed, a further layer of transparent material of suitable size and refractive index.

Abstract: Novel compounds having the formula ##STR1## wherein ##STR2## are disclosed. These compounds have potassium channel activating activity and are useful, for example, as cardiovascular agents, especially as antiischemic agents.

Abstract: A stable, nonhygroscopic potassium monopersulfate composition comprising KHSO.sub.5, KHSO.sub.4 and K.sub.2 SO.sub.4 having a composition represented by a point within the closed curve of FGHIF of FIG. 1.A process for preparing a stable, nonhygroscopic potassium monopersulfate composition having the following formula:(KHSO.sub.5).sub.x.(KHSO.sub.4).sub.y.(K.sub.2 SO.sub.4).sub.zwhere x+y+z=1 and x=0.48-0.64, y=0.15-0.37, and z=0.15-0.37 includes providing Caro's acid having a molar ratio of H.sub.2 SO.sub.5 /H.sub.2 SO.sub.4 of 1.6 or more and a water content of 40 to 65 weight percent, partially neutralizing the Caro's acid with a basic potassium compound to form a reaction mixture having a potassium to sulfur ratio (K/S) of 1.15 to 1.25 and a molar ratio of KHSO.sub.5 /(KHSO.sub.4 +K.sub.2 SO.sub.4) greater than 1.0, adding the reaction mixture to a solution having a molar ratio of KHSO.sub.5 /(KHSO.sub.4 +K.sub.2 SO.sub.4) greater than 2.5 to produce a final mixture having a molar ratio of KHSO.sub.

Abstract: A polyamide yarn is disclosed which is at least about 85% by weight poly(.epsilon.-caproamide) and which has a relative viscosity of greater than 50, a tenacity of at least about 9.3 g/d, a dry heat shrinkage at 160.degree. C. of less than about 3 percent, a modulus of at least about 20 g/d, a toughness of at least about 240 g/d. %, a crystal perfection index of greater than about 82, and a long period spacing of greater than about 100 .ANG.. The process for making the yarn includes drawing of a feed yarn while heating to at least about 185.degree. C. in at least a final draw stage to a draw tension of at least 4.8 g/d, subsequently decreasing the tension while heating to at least about 185.degree. C. to produce a length decrease of between about 13.5 and about 30%, and cooling and packaging the yarn.

Abstract: Premelting of the bis-lactam inhibits crystal formation when reacting certain bis-lactams with certain diamine mixtures.

Abstract: The subject invention provides a cured non-foamed composition consisting of (i) polychloroprene and (ii) 2-25% by weight of the polymer composition of a copolymer of ethylene and at least one alpha-beta unsaturated carboxylic acid (or ionomer) or ester thereof and a process for making the same.

Abstract: A photohardenable electrostatic master comprising an electrically conductive substrate; a photohardenable layer, and a conductant sealant layer, the conductant being a thiourea or a thioamide present in an amount sufficient to control the discharge characteristics of the sealant layer. The master is particularly useful in the graphic arts field, especially in the area of color proofing wherein proof are prepared to simulate the images produced by printing.

Abstract: The preparation and use of nucleic acid promoter fragments homologous to the Em gene of wheat to bring the expression of selected genes in plants under external control are described. The Em promoter fragment is responsive to abscisic acid (ABA) and other compounds possessing ABA-like activity. Through transformation of protoplasts and plant cells with recombinant DNA constructs incorporating such promoter fragments, operably linked selected genes are expressed in response to ABA and compounds possessing ABA-like activity. The application of such promoter fragments and constructs to transient assay systems to predict the likelihood of stable transformation in plants is disclosed.

Abstract: A system for producing an image by halftone printing generates halftone dots from electronic data by scanning across a raster of write spots in a recording medium, spot-by-spot and line-by-line. Each dot is defined within a repetitive dot template containing a plurality of write spots. The system writes at selective write spots by sending a present write-spot address signal obtained from a write-spot address register to a spot-status Look-Up-Table for selecting a predetermined value for each write spot, the predetermined value determining an on-off status for the present write spot. The spot-status Look-Up-Table has a plurality of predetermined values corresponding, respectively, to addresses of write spots within the dot template.

Abstract: The invention relates to highly processable aromatic polyamide fibers of high modulus, improved surface frictional properties, improved scourability, low abrasion depositing, low fibrillation and improved longterm antistatic properties having a coating of a lubricant, an emulsifying system, and an antistatic agent, and a process for making such fibers.