Abstract: An apparatus comprising a compact, folded path cell for optical gas detection and/or measurement utilising gas absorption spectroscopy. The apparatus includes a source of electromagnetic radiation, a gas sample cell containing reflective elements, and a detector of electromagnetic radiation. The source and detector are arranged between the reflective elements in an arrangement that reflects the radiation away from the source and detector until the reflected radiation has an adequate optical path length, and then reflects the radiation towards the detector. A spectroscopic analysis can be used to determine the presence and/or to measure at least one parameter of at least one gas species within a gas sample.

Abstract: An apparatus for optical gas detection and/or measurement in an absorption spectroscopy system comprising: a gas cell for containing a gas sample or calibration gas with at least one gas exchange port and at least one optical element for allowing transmission of electromagnetic radiation of a desired wavelength range in and out of the gas cell; and at least one source of converging, diverging or collimated electromagnetic radiation for transmitting electromagnetic radiation through a gas sample contained within the gas cell and towards at least one detector; said detector to monitor absorption of electromagnetic radiation for at least one absorption wavelength or wavelength range associated with at least one gas species, by detecting transmitted electromagnetic radiation that is not absorbed; at least one analyser for analysing an output signal from the at least one detector to measure a parameter of at least one gas species within the gas sample, characterised in that at least one dead volume within the spec

Abstract: An apparatus for use in absorption spectroscopy, comprising: at least one source of electromagnetic radiation for transmitting electromagnetic radiation along an optical path that passes through a gas measurement volume, towards at least one detector; at least one detector to detect the transmitted electromagnetic radiation after passing through the gas measurement volume and to provide an output signal indicative of the detected electromagnetic radiation; and an analyser connected to the at least one detector to receive the output signal and analyse the effects of absorption by at least one gas species within the gas measurement volume for at least one wavelength range of the transmitted electromagnetic radiation, thereby to detect or measure a parameter of the at least one gas species; wherein at least one source or detector comprises a Chip-on-Board (COB) component comprising a solid-state source and/or detector of electromagnetic radiation mounted onto a substrate in a COB configuration.

Abstract: Disclosed herein, inter alia, are polynucleotide probes, methods, and kits useful for amplifying and detecting target nucleic acids.

Abstract: Disclosed herein, inter alia, are oligonucleotides, methods, and kits useful for amplifying and detecting target nucleic acids.

Abstract: Disclosed herein, inter alia, are oligonucleotides, methods, and kits useful for amplifying and detecting targets such as nucleic acids, proteins, and carbohydrates.

Abstract: Disclosed herein, inter alia, are methods and compositions for improved circular polynucleotide amplification and detection.

Abstract: Disclosed herein, inter alia, are oligonucleotides, methods, and kits useful for amplifying and detecting targets such as nucleic acids, proteins, and carbohydrates.

Abstract: An apparatus is provided for rotatable selection of sites for cannulation with a needle along a subcutaneous vascular access vessel. The cannulation site selection apparatus comprises a template having an inner surface and an outer surface, and a plurality of visible markings on the outer surface of the template. The template is adapted to be disposed adjacent the subcutaneous vascular access vessel such that the markings align with the cannulation sites along the vascular access vessel for selecting a site for cannulation with a needle into the vascular access vessel.

Abstract: A method for rotatable selection of sites for cannulation of a subcutaneous vascular access vessel comprises the step of providing a template defining an opening for a plurality of zones, each of the plurality of zones configured for receiving a plurality of simultaneous cannulations accessing the vascular access vessel. The outer surface of the template is marked, the marking defining each of the plurality of zones for use as cannulation sites along the vascular access vessel. The template is positioned on the skin of the patient adjacent the subcutaneous vascular access vessel such that the opening aligns with the vascular access vessel, and the marking is used for selecting a first zone for a cannulation site into the vascular access vessel such that the cannulation site in the first zone is spaced from and not adjacent to a second zone used for cannulation immediately previously to the first zone.

Abstract: An apparatus is provided for rotatable selection of sites for cannulation with a needle along a subcutaneous vascular access vessel. The cannulation site selection apparatus comprises a template having an inner surface and an outer surface, and a plurality of visible markings on the outer surface of the template. The template is adapted to be disposed adjacent the subcutaneous vascular access vessel such that the markings align with the cannulation sites along the vascular access vessel for selecting a site for cannulation with a needle into the vascular access vessel.

Abstract: A quantitative simulation process for producing quantitative model predictions of hydrocarbon composition. The quantitative simulation may include measuring a chemical and isotopic composition of a hydrocarbon sample from a hydrocarbon reservoir.

Abstract: A respiratory flow therapy apparatus including a sensing chamber which measures a flow of gases provided to a patient. The sensing chamber can be located after a blower and/or mixer. The sensing chamber can include an ultrasonic transducer, a temperature sensor, a heated temperature sensing element, and/or a gas concentration sensor. A flow path of gases used in conjunction with the sensor system prevents unwanted vorticity in the flow of gases that can create anomalies in measuring flow.

Abstract: A respiratory flow therapy apparatus including a sensing chamber which measures a flow of gases provided to a patient. The sensing chamber can be located after a blower and/or mixer. The sensing chamber can include an ultrasonic transducer, a temperature sensor, a heated temperature sensing element, and/or a gas concentration sensor. A flow path of gases used in conjunction with the sensor system prevents unwanted vorticity in the flow of gases that can create anomalies in measuring flow.

Abstract: A method and system for the suppression and/or modulation of absorption spectrum artifacts for the purpose of gas detection and concentration measurements using at least one magnetic, electric or electromagnetic field. A field applied selectively to at least one section of the system modulates absorption by influencing quantum energy state transitions of gas species.

Abstract: An apparatus for delivering a flow of gas, has a housing 3202? with a recess, and an outlet port 3210? for a flow of gas. The recess is defined by at least one wall 3256, 3262 that is substantially continuous, gas impermeable, and unbroken, other than a gasflow passage from the recess to the outlet port of the housing.

Abstract: An apparatus for delivering a flow of gas has a housing and a humidifier. The housing has a recess for a motor and/or sensor module, an outlet port for a flow of gas, and a removable elbow for a flow of gas. The humidifier has a heater, a chamber bay for receipt of a liquid chamber, and a lever and/or detent(s) for assisting with insertion and/or retention and/or removal of the liquid chamber in and/or from the chamber bay.

Abstract: An embodiment method for managing geographic information includes receiving, at a service portal, executed lease data for mineral rights leases on associated first land parcels, generating first map data according to the executed lease data, and sending the first map data through a network interface to a client application for display to a first user at a first remote terminal. The method further includes receiving, from the first remote terminal, data for a proposed division order boundary, determining one or more of the first land parcels having boundaries that at least partly overlap the proposed division order boundary, generating division order data related to portions of the one or more first land parcels, and sending the division order data to the first remote terminal for display to the user.

Abstract: A quantitative simulation process for producing quantitative model predictions of hydrocarbon composition may comprise: measuring a chemical and isotopic composition of a hydrocarbon sample from a hydrocarbon reservoir; measuring geochemical data, geophysical data, and/or geological data for the hydrocarbon reservoir and/or source rock; deriving temperature versus time relationships from a basin model for the hydrocarbon reservoir and/or source rock based on the geochemical data, geophysical data, and/or geological data; generating estimated source-rock maturity parameters based on the temperature versus time relationships; generating an estimated compositional yield for hydrocarbon fractions based on the temperature versus time relationships and the chemical composition of the hydrocarbon sample; and generating, using a mass-conserving isotopic fraction (MCIF) simulator, an estimated isotopic composition of the hydrocarbon fractions based on the estimated compositional yield and the isotopic composition of t

Abstract: Described herein are methods and techniques for determining one or more characteristics of a hydrocarbon source. The method comprises obtaining a hydrocarbon fluid sample, determining at least one measured clumped isotope signature or measured position specific isotope signature for at least one hydrocarbon species of interest in the hydrocarbon fluid sample, determining at least one expected clumped isotope signature or expected position specific isotope signature for the hydrocarbon species of interest, comparing the measured clumped isotope signature or measured position specific isotope signature with the expected clumped isotope signature or expected position specific isotope signature, and determining at least one characteristic of the source of the hydrocarbon sample based on the comparison.