Abstract: A graph-based clinical concept mapping algorithm maps ICD-9 (International Classification of Disease, Revision 9) and ICD-10 (International Classification of Disease, Revision 10) codes to unified Systematized Nomenclature of Medicine (SNOMED) clinical concepts to normalize longitudinal healthcare data to thereby improve tracking and the use of such data for research and commercial purposes. The graph-based clinical concept mapping algorithm advantageously combines a novel graph-based search algorithm and natural language processing to map orphan ICD codes (those without equivalents across codebases) by finding optimally relevant shared SNOMED concepts. The graph-based clinical concept mapping algorithm is further advantageously utilized to group ICD-9/10 codes into higher order, more prevalent SNOMED concepts to support clinical interpretation.

Abstract: An apparatus for spectroscopy of a gas mixture is described. Such an apparatus includes a gas mixing system configured to mix a hot analyte gas that includes at least one analyte species in a gas phase into a cold buffer gas, thereby forming a supersaturated mixture to be provided for spectroscopic analysis.

Abstract: A spectrometer includes: (1) a housing defining a volume into which an analyte gas is introduced, the analyte gas including a chiral component; (2) a microwave generator coupled to the housing and configured to apply a microwave pulse to the analyte gas, the microwave pulse being polarized along a first direction; (3) an electric field generator coupled to the housing and configured to apply a switched electric field to the analyte gas, the electric field being oriented along a second direction different from the first direction; (4) a phase-sensitive microwave detector coupled to the housing and configured to detect an induced microwave emitted by the analyte gas, the induced microwave being polarized along a third direction different from the first direction and the second direction; and (5) an analyzer coupled to the phase-sensitive microwave detector and configured to detect an enantiomer of the chiral component based on a phase of the induced microwave.

Abstract: A spectrometer includes: (1) a housing defining a volume into which an analyte gas is introduced, the analyte gas including a chiral component; (2) a microwave generator coupled to the housing and configured to apply a microwave pulse to the analyte gas, the microwave pulse being polarized along a first direction; (3) an electric field generator coupled to the housing and configured to apply a switched electric field to the analyte gas, the electric field being oriented along a second direction different from the first direction; (4) a phase-sensitive microwave detector coupled to the housing and configured to detect an induced microwave emitted by the analyte gas, the induced microwave being polarized along a third direction different from the first direction and the second direction; and (5) an analyzer coupled to the phase-sensitive microwave detector and configured to detect an enantiomer of the chiral component based on a phase of the induced microwave.

Abstract: An apparatus for spectroscopy of a gas mixture is described. Such an apparatus includes a gas mixing system configured to mix a hot analyte gas that includes at least one analyte species in a gas phase into a cold buffer gas, thereby forming a supersaturated mixture to be provided for spectroscopic analysis.

Abstract: A system includes a cold cell tube configured to receive a mixture of a target gas and a buffer gas to cool the target gas to a temperature at which a partial pressure of the target gas is greater than the saturated vapor pressure of the target gas while maintaining at least a portion of the target gas in the gas phase. The system also includes a spectroscopic module configured to detect the cooled target gas in the cold cell tube; and an analysis module configured to determine a characteristic of the target gas based on the results of the detecting.

Abstract: A system includes a cold cell tube configured to receive a mixture of a target gas and a buffer gas to cool the target gas to a temperature at which a partial pressure of the target gas is greater than the saturated vapor pressure of the target gas while maintaining at least a portion of the target gas in the gas phase. The system also includes a spectroscopic module configured to detect the cooled target gas in the cold cell tube; and an analysis module configured to determine a characteristic of the target gas based on the results of the detecting.

Abstract: A logic control system for a video display terminal is disclosed for accommodating vertically and horizontally varying entry points to a video memory to acquire first character bytes of rows of video information for display on a CRT screen. Dynamically changeable display page snapshots of the video memory, and the formation of display pages from randomly located rows of video information within the video memory are thereby provided.