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Local attraction refers to disturbances in compass readings caused by magnetic influences from nearby objects such as metal fences, buried pipes, vehicles, buildings, power lines, or natural iron ore deposits. Small items like wristwatches, steel tools, or belt buckles can also interfere with the compass by creating local magnetic fields that distort the Earth's natural magnetic field. These distortions lead to inaccurate readings, posing navigation and land surveying challenges.Local...
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Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
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The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
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Design Example: Automobile Ignition System01:14

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The automobile's ignition system plays a vital role by ensuring the timely ignition of the fuel-air mixture in each cylinder. This ignition is facilitated by a spark plug, which is composed of two electrodes separated by an air gap. A spark forms across this air gap when a substantial voltage is generated between the electrodes, leading to the ignition of the fuel.
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A motor unit consists of two main components: a single efferent motor neuron (i.e., a neuron that carries impulses away from the central nervous system) and all of the muscle fibers it innervates. The motor neuron may innervate multiple muscle fibers, which are single cells, but only one motor neuron innervates a single muscle fiber.
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Mapping Local Codes to Read Codes.

Wilfred Bonney1, James Galloway1, Christopher Hall1

  • 1Health Informatics Centre, University of Dundee, Dundee, Scotland, United Kingdom.

Studies in Health Technology and Informatics
|February 11, 2017
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Summary
This summary is machine-generated.

This study mapped 485 legacy lab test codes to 124 Scottish 5-byte Version 2 Read Codes, improving clinical dataset usability for translational research and population health outcomes.

Keywords:
Clinical DatasetsData MappingHealth Data StandardsRead Codes

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Area of Science:

  • Health Informatics
  • Clinical Biochemistry
  • Translational Research

Background:

  • Legacy laboratory test codes hinder the use of clinical datasets for long-term translational research.
  • The Health Informatics Centre (HIC) manages extensive biochemistry data from 1987, but it suffers from incoherent sample types and unstandardized codes.
  • This complexity impedes using the dataset for population health outcome studies.

Purpose of the Study:

  • To map legacy local test codes to the Scottish 5-byte Version 2 Read Codes.
  • To enhance the usability of the HIC-managed biochemistry dataset for research.

Main Methods:

  • A data mapping methodology was employed.
  • Legacy local test codes from Tayside and Fife clinical biochemistry laboratories were mapped to Scottish 5-byte Version 2 Read Codes.

Main Results:

  • The mapping successfully linked 485 legacy laboratory test codes to 124 Read Codes.
  • The dataset spanned 25 years of biochemical data.

Conclusions:

  • The data mapping facilitated the restructuring of the HIC biochemistry dataset, improving cohort identification and selection.
  • Standardized Read Codes enable easier mapping to other health data standards like CTV3, LOINC, and SNOMED CT.
  • This improves the utility of historical clinical biochemistry data for research.