Abstract: An improved cotton defoliant formulation comprising a mixture of thidiazuron and an effective potentiating amount of an ammonium, quaternary alkyl ammonium, alkali metal or alkaline earth metal thiocyanate.

Abstract: The acylated reaction product of silica gel or controlled pore glass and polyethyleniminopropyl trimethoxy silane suitable for use as chromatographic column packing, wherein said acyl function does not have a terminal carboxyl.

Abstract: A VLSI chemical reactor includes a fluid flow guide spaced from the corresponding substrate in the form of a wafer for significantly reducing contamination in the processing of semiconductor wafers. Processing chemicals are introduced in a continuous process through a central tube and through the fluid flow guide which is substantially planar and which is parallel to the surface of the wafer. A predetermined gap is maintained between the guide and the wafer such that fluid is maintained in the gap at all times critical in the processing of the wafer. In one embodiment, the guide is optically transparent at predetermined portions to permit monitoring of the chemical reaction taking place on the surface of the wafer to permit control of fluid flow to the wafer. Because of the uniform gap, the fluid guide insures a constant thickness and composition of the opticalpath, and thus more accurate measurements.

Abstract: A method of chromatographically separating monoclonal antibody type IgG from mouse ascites fluid utilizing a particular chromatographic packing of silica gel bearing bound polyethylenimine functions.

Abstract: The present invention provides method and apparatus for forming a collapsible trap for trapping flying insects, particularly Gypsy moths. The trap includes a housing or enclosure with at least one entrance port into said housing for enabling insects to enter, and an overhead shade above this port to guide the insect into the port and to block from the port sunlight, which might otherwise attract the insect away from the trap. A sex lure and a volatile insecticide are provided within the housing to attract insects inside and then to exterminate them. The housing is formed from a single integral sheet of stiffly flexible material, such as water-resistant coated cardboard or plastic, having multiple panels joined together along crease lines acting as hinges. The trap can be folded along two of its crease lines into a flat configuration for advantageously facilitating transport, handling, and storage of the trap in its collapsed state.

Abstract: A method for the preparation of (E)-4-bromo-2-methylbut-2-en-1-al comprises brominating 3,4-epoxy-3-methyl-1-butene with cupric bromide in the presence of lithium carbonate.

Abstract: A system is provided for the automatic measurement of red and white blood cell counts and other blood parameters. The system includes hydraulic apparatus for the aspiration of a blood sample and the proper measurement of the parameters thereof. During operation, the system directs an operator at each step of the procedure, allowing only permitted functions to be performed, thereby decreasing the opportunity for operator error. Each blood cell count is performed twice and the answers compared, an indication of instrument malfunction being presented to the operator if the measurements do not agree within a predetermined percentage. The system monitors itself to detect malfunctions which may occur and alerts the operator to the occurrence of a malfunction.

Abstract: A system is provided for the automatic measurement of red and white blood cell counts and other blood parameters. The system includes hydraulic apparatus for the aspiration of a blood sample and the proper measurement of the parameters thereof. During operation, the system directs an operator at each step of the procedure, allowing only permitted functions to be performed, thereby decreasing the opportunity for operator error. Each blood cell count is performed twice and the answers compared, an indication of instrument malfunction being presented to the operator if the measurements do not agree within a predetermined percentage. The system monitors itself to detect malfunctions which may occur and alerts the operator to the occurrence of a malfunction.