Abstract: A method for extraction of zinc values from an aqueous alkaline solution of zinc, especially a solution obtained by the stripping of a galvanized coating from a ferrous metal product e.g. steel, or from electric arc furnace dust. The method comprises subjecting the aqueous alkaline solution to solvent extraction using an organic solution of an oxine i.e. an organic extractant containing an 8-hydroxyquinoline group, and separating the organic solution from aqueous alkaline solution. Zinc values are recovered from the organic solution e.g. by stripping with acid and subjecting the resultant aqueous solution containing zinc values for recovery of zinc e.g. to electrowinning or to precipitation of zinc carbonate. The method may be used in the preparation of galvanized steel for recycle to a steel manufacturing plant, with recovery of zinc and for recovery of zinc values from electric arc furnace dust.

Abstract: A ballistic fabric having unidirectional ballistic resistant yarns in at least two layers. The layers are at 90°±5° with respect to each other. The ballistic resistant yarns are stabilized by being woven in a second fabric formed of yarns having a substantially lower tenacity and tensile modulus than the ballistic resistant yarns.

Abstract: Strains of Leishmania and other macrophage-infecting parasites are provided which express the GM-CSF gene which are useful in treating hosts infected by the parasite and in protecting hosts against disease caused by infection of hosts by parasites. The parasites are reduced in their ability to infect or survive in macrophages and hence are attenuated. At least one gene of the parasite contributing to the virulence thereto may be functionally disabled. The attenuated strains may be used for administration to a host (a) to treat a host infected by Leishmania or (b) to confer protection against disease caused by a virulent Leishmania strain, or as a diagnostic reagent.

Abstract: Protective high molecular weight (HMW) proteins are produced recombinantly by expression from E. coli by using a promoter effective in E. coli and a nucleic acid molecule which contains a modified operon of a non-typeable strain of Haemophilus. The modified operon contains the portion only of the A region which encodes the mature HMW protein and the complete B and C regions of the operon. Enhanced levels of expression of the HMW proteins can be achieved by including the E. coli cer gene, a further copy of the portion of the A region of the operon encoding the mature protein or both in the expression vector. Nucleotide and deduced amino acid sequences of the hmw1 and hmw2 genes and HMW1 and HMW2 proteins, respectively of several non-typeable Haemophilus influenzae strain have been identified.

Abstract: The present invention is directed to a synthetic biomaterial compound based on stabilized calcium phosphates and more particularly to the molecular, structural and physical characterization of this compound. The compound comprises calcium, oxygen and phosphorous, wherein at least one of the elements is substituted with an element having an ionic radius of approximately 0.1 to 1.1 ?. The knowledge of the specific molecular and chemical properties of the compound allows for the development of several uses of the compound in various bone-related clinical conditions.

Abstract: An indoor barbecue is provided for indoor cooking of food. The barbecue has a body defining a cavity and a lid for engaging with the body to define a cooking chamber. A cooking rack is supported by the body within the cooking chamber and a container is disposed within the cooking chamber for receiving charcoal.

Abstract: Method and apparatus are described for determining respiratory system resistance (R) in a patient receiving gas from a ventilator. A negative pulse in the pressure and/or flow output of the ventilator during selected inflation cycles is generated and Paw, {dot over (V)} and V are measured at a point (To) near the beginning of the pulse, at a point (T1) near the trough of the negative pulse and at a point (T?1) preceding To. The value of R is calculated from the difference between Paw, {dot over (V)} and V at To and at T1 and where the change in patient generated pressure (Pmus) in the interval To?T1 is estimated by extrapolation from the different between Paw, {dot over (V)} and V and To and at T?1, in accordance with Equation 8.

Abstract: Nucleic acid, including DNA, for immunization to generate a protective immune response in a host, including humans, to a major outer membrane protein of a strain of Chlamydia, preferably contains a nucleotide sequence encoding a MOMP or a MOMP fragment that generates antibodies that specifically react with MOMP and a promoter sequence operatively coupled to the first nucleotide sequence for expression of the MOMP in the host. The non-replicating vector may be formulated with a pharmaceutically-acceptable carrier for in vivo administration to the host.

Abstract: A dough and a filling for making a toaster pastry and a method for making same. A method of forming the dough for the toaster pastry, comprises forming a blend of ingredients comprising wheat flour of from about 25 to about 44% by weight of ingredients for the dough, wheat farina of from about 13 to about 35% by weight of ingredients for the dough, shortening of from about 1.5 to about 2.5% by weight of ingredients for the dough, and water of from about 25 to about 35% by weight of ingredients for the dough; adding puff pastry shortening in the form of cubes such that the amount of puff pastry shortening is in the range of from about 5 to about 15% by weight of the ingredients for the pastry; and blending the ingredients such that a heterogeneous mixture of the cubes of shortening in the remainder of the ingredients is obtained.

Abstract: A protective immune response against Chlamydial infection is achieved by in vivo administration of an immunogenic composition comprising two vectors and a pharmaceutically-acceptable carrier therefor. One of the vectors comprises a first nucleotide sequence encoding a major outer membrane protein (MOMP) of a strain of Chlamydia, preferably C. pneumoniae, and a promoter sequence operatively coupled to the first nucleotide sequence for expression of the MOMP in the host. The other of the vectors comprises a second nucleotide sequence encoding a 76 kDa protein of a strain of Chlamydia, preferably C. pneumoniae, and a promoter sequence operatively coupled to the second nucleotide sequence for expression of the 76 kDa protein in the host. The protection efficiency which is achieved by the immunization procedure is enhanced over that attained with the individual vectors alone.

Abstract: The present invention is a method for the modification of the surfaces of polymeric materials with polymer coatings that may be subsequently treated to be lubricious and anti-microbial. The method comprises incubating a photo-initiator-coated polymeric material with an aqueous monomer that is capable of free radical polymerization and exposing the incubating polymeric material to UV light creating a modified surface on said polymeric material. The method may additionally comprise adding a silver component to the modified surface. The silver component may be provided as a silver salt coating or a silver salt contained within a hydrogel bonded to the acrylate modified polymeric material surface.

Abstract: The present invention provides a method for stabilizing irregular structures such as rock structures in mines and in construction sites as well as other rock and concrete structures. The method comprises concurrently heating and mixing a mixture of polyoxypropylene diamine with an aromatic diamine liquid, mechanically purging the mixture under pressure and applying the purged mixture to a desired irregular structure. The invention also provides a weather resistant and anti-corrosive polyurea coating material as a fibrous mesh, liquid film, geotextile mat and foam for stabilizing rock, concrete and molding tool structures.

Abstract: Adjuvant compositions for modulating an immune response to an antigen administered to a host comprise a mineral salt adjuvant and at least one other adjuvant. The compositions provide an adjuvanting effect on an antigen which is greater than the adjuvanting effect attainable by one of the adjuvants alone. An antigen is covalently bonded to a glycolipid analog to provide a discrete molecule which exhibits an enhanced adjuvanting effect on the antigen which is greater than the adjuvanting effect attainable in the absence of such covalent bonding.

Abstract: A endotracheal tube for patient ventilation is modified to permit measurement of pressure at the patient trachea by providing a chamber in the end of the ET tube to be located in the patient, airway. This chamber has a highly pliant external wall with a degree of redundancy and is connected to a pressure measuring device exterior of the patient by a lumen in the wall of the ET tube. In addition, apparatus for controlling airway pressure during exhalation comprises valve means connected via a first inlet to an exhalation tube from a patient airway, connected to a source of negative pressure through an outlet and having a second inlet with a variable flow control means for controlling the flow of gas therethrough. Gas pressure is controlled within the valve by varying the pressure gradient between the upstream and downstream sides of the second inlet so that it equals the pressure gradient between the patient airway and the downstream side of the second inlet.

Abstract: Chlorine dioxide is produced at high conversion rates from aqueous sodium chlorite solution by electrochemical oxidation in an undivided electrochemical cell. The cell utilizes an anode of high surface area through which the aqueous sodium chlorite solution flows into an interelectrode gap between the anode and a cathode. Water or acidified water is fed into the interelectrode gap to function as catholyte and also to dilute the electrolyzed sodium chlorite solution to provide an aqueous solution of chlorine dioxide exiting from the electrochemical cell.

Abstract: Methods for making the stable dispersion of lignin components of black liquor in bitumen. Representative methods comprising converting an aqueous colloidal dispersion of lignin in spent pulping liquor to an anhydrous colloidal dispersion of lignin in a lubricating oil by mixing a lubricating oil with the spent pulping liquor, and dewatering the mixture so formed at an elevated temperature to form a cream-like paste compatible with bitumen, and mixing said anhydrous colloidal dispersion of lignin with bitumen.