Abstract: A method, computer program product, and a data processing system for controlling a first climate control device is provided. An operational mode is obtained for each of a plurality of climate control devices. The operational mode of each of the plurality of climate control devices is compared with a desired operational mode of the first climate control device. A determination of whether any of the operational modes of the plurality of climate control devices differs from the desired operational mode. The first climate control device is placed in the desired operational mode dependent on the comparison of the operational modes of the plurality of climate control devices with the desired operational mode.

Abstract: A method, computer program product, and a data processing system for controlling a first climate control device is provided. An operational mode is obtained for each of a plurality of climate control devices. The operational mode of each of the plurality of climate control devices is compared with a desired operational mode of the first climate control device. A determination of whether any of the operational modes of the plurality of climate control devices differs from the desired operational mode. The first climate control device is placed in the desired operational mode dependent on the comparison of the operational modes of the plurality of climate control devices with the desired operational mode.

Abstract: A method, computer program product, and a data processing system for controlling a first climate control device is provided. An operational mode is obtained for each of a plurality of climate control devices. The operational mode of each of the plurality of climate control devices is compared with a desired operational mode of the first climate control device. A determination of whether any of the operational modes of the plurality of climate control devices differs from the desired operational mode. The first climate control device is placed in the desired operational mode dependent on the comparison of the operational modes of the plurality of climate control devices with the desired operational mode.

Abstract: The invention concerns a sensor that, when exposed to a fluid, develops a measurable characteristic that is a function of the level of an analyte in the fluid and of a calibration quantity of the sensor. A calibration quantity is some physical, chemical or other inherent property that the sensor possesses that affects its response to the analyte. The sensor includes an RFID tag that receives, stores and conveys information representing the calibration quantity. The wireless device is incorporated into or attached to the sensor during the manufacturing process and before the sensor is calibrated. The wireless device can be written wirelessly once the calibration has been done. This does not involve any additional handling of the sensor and can be done once the sensor has been placed into a protective enclosure.

Abstract: A method, computer program product, and a data processing system for controlling a first climate control device is provided. An operational mode is obtained for each of a plurality of climate control devices. The operational mode of each of the plurality of climate control devices is compared with a desired operational mode of the first climate control device. A determination of whether any of the operational modes of the plurality of climate control devices differs from the desired operational mode. The first climate control device is placed in the desired operational mode dependent on the comparison of the operational modes of the plurality of climate control devices with the desired operational mode.

Abstract: A method, computer program product, and a data processing system for controlling a first climate control device is provided. An operational mode is obtained for each of a plurality of climate control devices. The operational mode of each of the plurality of climate control devices is compared with a desired operational mode of the first climate control device. A determination of whether any of the operational modes of the plurality of climate control devices differs from the desired operational mode. The first climate control device is placed in the desired operational mode dependent on the comparison of the operational modes of the plurality of climate control devices with the desired operational mode.

Abstract: The invention relates to a competitive binding assay technique for substances (e.g. small molecules having no antigenic determinant) which can serve as substrates for coenzyme-requiring enzymes. The technique involves contacting a liquid sample with an assay system including (i) a substrate analogue and (ii) a moiety capable of binding specifically to the substrate without catalyzing the conversion of substrate to product. The substrate analogue is a substance capable of binding to said moiety competitively with any of the substrate present in the sample. The presence or amount of the substrate is determined by monitoring the extent to which there are formed or remain complexes between the moiety and substrate or substrate analogue.

Abstract: The present invention relates to assay techniques for detection of ligands in solution and to means for putting such techniques into effect. In particular it relates to an improved assay technique which provides a liquid calibrator for use in standard assays in circumstances where the ligand itself is rare, expensive, or difficult to prepare in a sufficiently pure or quantifiable form.

Abstract: An electrochemical specific binding assay of a ligand (e.g., antigen, hapten or antibody) wherein at least one of the components is enzyme-labelled, and which includes the step of determining the extent to which the transfer of electrons between the enzyme substrate and an electrode, associated with the substrate reaction, is perturbed by complex formation or by displacement of any ligand complex relative to unbound enzyme-labelled component.The electron transfer is aided by electron-transfer mediators which can accept electrons from the enzyme and donate them to the electrode or vice versa (e.g. ferrocene) or by electron-transfer promoters which retain the enzyme in close proximity with the electrode without themselves taking up a formal charge.The electrochemical apparatus will typically comprise two or three electrodes, including one working electrode onto which components may advantageously be immobilized.

Abstract: A method of assaying a ligand in a sample which method includes the steps of contacting the sample with components comprising(a) a specific binding partner to the ligand and, if desired,(b) at least one reagent selected from ligand analogues and specific binding, partners,at least one of the said components (a) and (b) being labelled with an electron-donor or electron-acceptor,and determining whether (and, if desired, the extent to which) transfer of electrons between the said electron-donor or electron-acceptor label and a suitable charge-transfer partner resulting in charge-transfer complex formation is perturbed by ligand complex formation and/or by controlled external influences.

Abstract: In its broadest aspect, the present invention provides a method of effecting an electrochemical specific-binding assay of a ligand, either qualitatively or quantitatively, in an apparatus comprising at leasts one electrode, in which method a labelled component of the assay medium is, at least in part, magnetically held in the vicinity of the electrode. The electrochemical assay method may include a separation step, whereby bound label may be separated from free label in the assay medium. Preferably the electrochemical assay method will include the step of determining a perturbation in an electrochemical characteristic of components of the assay medium associated with a ligand complexing reaction.Such an assay method is applicable to, for example, antibodies and antigens and suitable labels include redox centers, enzyme labels in the presence of an electron-transfer mediator and electron-transfer mediator labels in the presence of an electron donor or acceptor.

Abstract: A ligand in a sample can be assayed using electrochemical apparatus containing a working electrode and components comprising:(a) the sample,(b) a specific binding partner to the ligand, or a specific binding partner to the ligand and selected from ligand analogues and specific binding partners, and(c) an electron-source or electron-acceptor; at least one of components (b) being labelled with an electron-transfer mediator capable of aiding the transfer of electrons between the electron-source or electron-acceptor and the working electrode by accepting electrons from the electron-source and donating them to the working electrode, or accepting the electrons from the electrode and donating them to the electron-acceptor.

Abstract: In its broadest aspect, the present invention provides a method of assaying a ligand in a sample which comprises contacting the sample with a predetermined quantity of a specific binding partner to the ligand, said specific binding partner being immobilized on the effective gate electrode of a field effect transistor, and determining whether (and, if desired, the extent to which) an appropriate transistor characteristic is changed as a result of complex formation between the ligand and the specific binding partner.

Abstract: An ammonia sensitive element which comprises a body of copper phthalocyanine whose electrical resistance varies with the concentration of ammonia gas to which it is exposed. The body of copper phthalocyanine may be supported on a substrate bearing interlaced electrodes.