Abstract: A self-activating photoactive aerosol is presented, comprising an anion-containing mass composition having a mass ratio of nitrate anions and/or nitrogen-oxygen compounds to chlorides ranging from 1 part nitrate anions and/or nitrogen-oxygen compounds to 200 parts chlorides, up to 10 parts nitrate anions and/or nitrogen-oxygen compounds to 1 part chlorides, and the composition has a pH in a range of less than or equal to 3 to greater than or equal to ?1. Also disclosed is method and apparatus for producing a self-activating photoactive aerosol.

Abstract: The present invention relates to a method of determining the predisposition of a subject to cancer or other disease states characterised by free radical induced DNA damage such as COPD or asthma and identifying those with undiagnosed cancer. The method is able to utilise whole blood from a subject and is based on exposing the samples to different levels or intensities of electromagnetic radiation, preferably by altering the distance between the source of radiation and the sample.

Abstract: The present invention relates to a method and assay useful for determining the sensitivity of the cells of a subject to genetic damage from electromagnetic radiation. The assay may comprise a substrate suitable for mounting a sample of lymphocytes from a subject and an electromagnetic radiation source.

Abstract: An audio amplifier circuit has a first cascode stage configured as a voltage gain stage and having an input for an audio signal, and an output. The circuit has a second cascode stage configured as a unity gain or near unity gain stage and having an input to receive an output from the first cascode stage, and a low impedance output to drive an output stage of an audio power amplifier. The first cascode stage has a first, input transistor having an input biased to a predetermined bias voltage, and a second, output transistor arranged to drive the second cascode stage. The first, input transistor of the first cascode stage may have a common-emitter configuration, and the second, output transistor may have a common-base configuration. The invention extends to an audio amplifier which includes a circuit of the invention.

Abstract: A regulated power supply circuit includes a voltage reference circuit arranged to generate a reference voltage and an output device responsive to a control signal to supply a load from a voltage source. A control circuit is arranged to compare an output voltage at the load with the reference voltage. The control circuit includes a comparator comprising a long-tailed transistor pair having a first input to which the reference voltage is applied, a second input to which the output voltage is applied, and an output connected to an input terminal of the output device. The control circuit applies a correction signal to the output device via a single semiconductor junction to regulate the output voltage, thereby minimising propagation delay in the control circuit. The circuit may include a primary voltage regulator arranged to supply the control circuit at a lower voltage than that of the voltage source.

Abstract: A ribbon loudspeaker module includes a ribbon element of electrically conductive material and having a resistance of less than 1? and a magnetic system arranged to create a magnetic field about the ribbon element. A buffer amplifier having an input is arranged to receive a loudspeaker drive signal from an audio power amplifier and an output arranged to drive the ribbon element directly. The ribbon loudspeaker module is preferably a low frequency module, designed to handle audio signals below 5 kHz, and preferably in the range 20 Hz to 3 kHz or a part thereof. The ribbon element may have a resistance of less than 0.5?, less than 0.2? and even as little as 0.15? or less.

Abstract: An audio amplifier circuit has a first cascode stage configured as a voltage gain stage and having an input for an audio signal, and an output. The circuit has a second cascode stage configured as a unity gain or near unity gain stage and having an input to receive an output from the first cascode stage, and a low impedance output to drive an output stage of an audio power amplifier. The first cascode stage has a first, input transistor having an input biased to a predetermined bias voltage, and a second, output transistor arranged to drive the second cascode stage. The first, input transistor of the first cascode stage may have a common-emitter configuration, and the second, output transistor may have a common-base configuration. The invention extends to an audio amplifier which includes a circuit of the invention.

Abstract: The present invention relates to a method and assay useful for determining the sensitivity of the cells of a subject to genetic damage from electromagnetic radiation. The assay may comprise a substrate suitable for mounting a sample of lymphocytes from a subject and an electromagnetic radiation source.

Abstract: A method of production of a thin film electroluminescent device comprising the steps of: providing a substrate; providing a conductor on the substrate; providing a dielectric layer on the conductor; providing a phosphor layer on the dielectric layer so creating a phosphor/dielectric interface region, the phosphor/dielectric region interface comprising a plurality of electron interface states; and transiently laser annealing the phosphor layer so as to induce an in depth annealing effect to the phosphor layer without heating the phosphor/dielectric region above a temperature which includes a substantial modification in the distribution of electron interface states.

Abstract: A terminal for use by a list broker, a terminal for use by a list manager, and a terminal for use by a service bureau (list provider) of a supply chain in the list industry, each terminal including means for translating to and/or from native format an indication of a subset of a list expressed in XML. An intermediate node is also provided, for optional use as a router and validator of XML statements exchanged between the elements of the supply chain. Advantageously, the indication of a subset of a list expressed in XML is provided using terms (tagged field values serving as select filter parameters) from a with the tags according to a list of terms in an XML schema description, and the possible values, in some embodiments, according to a predetermined “lingo” or, in other words, a standardized vocabulary. Corresponding methods are also provided.

Abstract: A brake actuator assembly includes a sensor mounted to a push rod which is in communication with a transceiver antenna. The sensor provides positional information of the push rod relative to the antenna. A clearance between a friction element and a rotating brake member is determined based on displacement of the push rod and known mechanical relationships within the brake actuator.

Abstract: A brake actuator assembly includes a sensor mounted to a push rod which is in communication with a transceiver antenna. The sensor provides positional information of the push rod relative to the antenna. A clearance between a friction element and a rotating brake member is determined based on displacement of the push rod and known mechanical relationships within the brake actuator.

Abstract: A method of production of a thin film electroluminescent device comprising the steps of: providing a substrate; providing a conductor on the substrate; providing a dielectric layer on the conductor; providing a phosphor layer on the dielectric layer so creating a phosphor/dielectric interface region the phosphor/dielectric region interface comprising a plurality of electron interface states; and translently laser anncaling the phosphor layer so as to induce an in depth annealing effect to the phosphor layer without heating the phosphor/dielectric region above a temperature which includes a substantial modification in the distribution of electron interface states.

Abstract: A method of phosphor thermographic temperature measurement comprising the steps of; illuminating (12) a thermographic phosphor coating (10) with a pulsed electromagnetic radiation to produce luminescence (16) of said phosphor coating (10); measuring and recording the intensity of said luminescence (16) over a period of time; and correlating the measured variation of the intensity of the said luminescence (16) over time to obtain a temperature measurement. The phosphor coating (10) being a relatively thin film phosphor coating. The thickness (t) of the thin film phosphor coating (10) being less than 10 &mgr;m, preferably between approximately 0.3 &mgr;m and 10 &mgr;m. The thin film phosphor coating (10) being annealed before being used for temperature measurement.

Abstract: A thermally actuated diffuser for controlling room temperature without electrical apparatus. The thermally actuated diffuser includes a housing having a first duct opening and a second duct opening. The second duct opening is diametrically opposed to the first duct opening to produce a linear air path through the housing. The housing has a third exit opening for communicating with a room. A damper blade diverts air flow and is positioned in the interior of the housing. The housing contains a first device and a second device that are both responsive to ambient temperature. The first and second devices each have first and second ends. The first end and the second end are adapted to move away from each other when the device is warmed and to move toward each other when the device is cooled. The first device is positioned in the interior of the housing adjacent to the air path. The second device is positioned in the housing adjacent to the third exit opening.

Abstract: A thin film electroluminescent device, comprising a first electrode layer, first and second dielectric layers with an active phosphor layer disposed therebetween, and a second electrode layer, wherein there is provided within the phosphor layer at least one barrier layer comprising a thin layer of dielectric material.An array of such devices placed side to side is provided with a print head suitable for A4 electrographic printing.