Abstract: A high resolution advertisement system has one or more high resolution video displays for displaying text, graphics, and moving graphic advertisements. A protective cover is coupled to each of the one or more high resolution video displays for protecting each of the one or more high resolution video displays. A video player is coupled to each of the one or more high resolution video displays for transmitting advertisement data to be displayed on each of the one or more high resolution video displays.

Abstract: An antibody specific to trifluralin can be produced by first substituting a soluble, straight chain amino acid for a propyl group of .alpha.,.alpha., .alpha.-trifluoro-2,6-dinitro-N-N-dipropyl-p-toluidine. The trifluoro group at the 4 position, the nitro group at the 2 position and the other nitro group at the 6 position are left exposed. Thereafter, the resulting substitution product is conjugated, at the site of the substituted amino acid group, with a lysine-rich protein. The resulting compound is then used as an antigen to evoke an immune response in a host animal or antibody producing cell line. The antibody produced against the antigen is then harvested and used in an assay such as a radioimmunoassay or enzyme linked immunosorbant assay (ELISA) to determine the presence and concentrations of trifluralin in agriculturally significant substances such as plant materials, soil and water or to otherwise test for trifluralin contamination of water, food and air.

Abstract: This invention relates to an antibody capable of both specifically detecting and quantifying minute quantities of the herbicide, atrazine, left in biological samples, such antibody having been made by the process of first substituting a soluble straight chain amino acid at the 4 or 6 position of 2-chloro-4(isopropylamino)-6-(ethylamino)-S-atrazine so as to leave the chlorine exposed at the 2 position along with one of the amino groups, then conjugating the resulting substitution product at the site of the amino acid group to a lysine-rich protein, using the mixed anhydride method in a strongly-basic aqueous solution, then inoculating a susceptible host with the antigen to evoke an immune response, and thereafter harvesting the antibody.

Abstract: The present invention is concerned with novel derivatives of cyanocobalamin (vitamin B.sub.12), especially of the monocarboxylic acid hydrolysates thereof, by which (1) an antigenic conjugate thereof with a protein is obtainable and (2) a readily iodinatable aromatic ring can be introduced while retaining in each instance, the essential constitution of cyanocobalamin to such an extent that (a) the antigenic protein conjugate, when introduced into the blood stream of a vertebrate, causes the formation of an antibody which is specific to the cyanocobalamin portion of the conjugate and (b) unmodified cyanocobalamin and the second-mentioned derivative when tagged or labeled with radioactive-iodine competitively bind on the aforementioned antibody. Thus, the present invention provides cyanocobalamin derivatives which are quite useful in radioimmunoassay (RIA) of vitamin B.sub.12.

Abstract: The present invention is concerned with novel derivatives of cyanocobalamin (vitamin B.sub.12), especially of the monocarboxylic acid hydrolysates thereof, by which (1) an antigenic conjugate thereof with a protein is obtainable and (2) a readily iodinatable aromatic ring can be introduced while retaining in each instance, the essential constitution of cyanocobalamin to such an extent that (a) the antigenic protein conjugate, when introduced into the blood stream of a vertebrate, causes the formation of an antibody which is specific to the cyanocobalamin portion of the conjugate and (b) unmodified cyanocobalamin and the second-mentioned derivative when tagged or labeled with radioactive-iodine competitively bind on the aforementioned antibody. Thus, the present invention provides cyanocobalamin derivatives which are quite useful in radioimmunoassay (RIA) of vitamin B.sub.12.