Abstract: A circuit for reducing the effects of unpredictable changes in power supply and variations in loading on sensitive equipment, e.g. CT scanning system, to reduce inaccurate readings and protect equipment. The circuit utilizes a network of variable reactances controlled either by manual switches or by a microprocessor receiving inputs from a plurality of monitoring locations within the network.

Abstract: The invention provides molybdenum-containing complexes prepared by reacting a carboxylic acid or metal salt thereof, an amine and a source of cationic molybdenum, wherein the ratio of the number of equivalents of acid groups to the number of moles of molybdenum (eq:mol) is in the range from 1:10 to 10:1, and the ratio of the number of equivalents of acid groups to the number of moles of amine (eq:mol) is in the range from 20:1 to 1:10; a process for their preparation; lubricating oil compositions containing them; and their use as friction-reducing additives.

Abstract: Compounds of the general formula ##STR1## where R.sup.2 and R.sup.3 together, or R.sup.3 and R.sup.4 together, represent an optionally substituted hydrocarbyloxy chain; the ring is optionally substituted at any or each of the remaining sites R.sup.5, R.sup.6 and R.sup.2 or R.sup.4 : n represents 0 or 1; and X represents a cyano group, a group --COOH or a salt, ester or amido derivative thereof; are biocidal, showing activity against fungi, yeast, bacteria and nematodes. Some such compounds, and intermediates therefore, are novel.

Abstract: The invention provides nitromethylene compounds of general formula ##STR1## wherein n is 2, 3, or 4, R.sup.1 is an optionally substituted 3-pyridyl group, each R.sup.2 is independently selected from an alkyl group, a haloalkyl group or a hydrogen atom, and R.sup.3 is a hydrogen atom or an alkylcarbonyl group, processes for their preparation, and their use as pesticides, particularly insecticides.

Abstract: The invention provides 2-nitromethylene hexahydropyrimidines of the general formula: ##STR1## in which R represents a hydrogen atom; a cycloalkyl group optionally substituted by alkyl and/or halogen; or a group of formula --(CO).sub.n (Y).sub.m R.sup.2 in which n is 0 or 1, Y is oxygen or sulphur, m is 0 or 1 and R.sup.2 represents an alkyl, alkenyl or alkynyl group optionally substituted by one or more substituents selected from halogen; alkoxy; haloalkoxy; alkoxyalkoxy; hydroxy; acyloxy; thiol; cycloalkyl optionally substituted by alkyl and/or halogen; and optionally substituted phenyl; and R.sup.1 represents an optionally substituted phenyl group; their preparation and their use as pesticides.

Abstract: 2-Iminothiazoline derivatives of the formula: ##STR1## and the corresponding 4,5-dihydro counterparts, wherein the respective meanings of the symbols are set forth in the specification, useful as insecticides and acaricides.