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Blood Studies I: ABG and VBG01:26

Blood Studies I: ABG and VBG

Blood studies are critical in the medical field, enabling healthcare professionals to assess a patient's health status accurately. This page will focus on two significant blood studies: Arterial Blood Gas (ABG) and Venous Blood Gas (VBG).
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Vapor Pressure

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Introduction to Vital Signs

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Guidelines For Measuring Vital Signs

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Assessment of Respiration

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Updated: May 16, 2026

A Microcontroller Operated Device for the Generation of Liquid Extracts from Conventional Cigarette Smoke and Electronic Cigarette Aerosol
09:30

A Microcontroller Operated Device for the Generation of Liquid Extracts from Conventional Cigarette Smoke and Electronic Cigarette Aerosol

Published on: January 18, 2018

FRIENDS GUI: A Graphical User Interface for Data Collection and Visualization of Vaping Behavior from a Passive

Shehan Irteza Pranto1, Brett Fassler1, Md Rafi Islam1

  • 1Graduate Research Assistant, Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, United States of America.

Journal of Open Research Software
|May 15, 2026
PubMed
Summary
This summary is machine-generated.

A new open-source tool, FRIENDS GUI, analyzes Electronic Nicotine Delivery Systems (ENDS) usage patterns. This flexible device accurately records puffing behavior, aiding toxicant exposure assessment and regulatory insights.

Keywords:
Graphical User InterfaceVaping behaviorVisualizationWearable sensors

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Published on: May 24, 2017

Area of Science:

  • * Public Health and Biomedical Engineering: Focuses on understanding user behavior with Electronic Nicotine Delivery Systems (ENDS).

Background:

  • * Accurate measurement of puffing topography (PT) is essential for assessing ENDS use and potential health risks.
  • * Existing methods for collecting PT data can be complex and lack user-friendly interfaces.

Purpose of the Study:

  • * To introduce FRIENDS (Flexible Robust Instrumentation of ENDS), an open-source device and its accompanying graphical user interface (GUI).
  • * To enhance the accessibility and interpretability of puffing data collected from ENDS devices.

Main Methods:

  • * Development of FRIENDS, an attachable device for ENDS that records puffing and touching events.
  • * Creation of a Python-based open-source GUI to extract, decode, and visualize 24-hour PT data.
  • * Validation of the GUI using experimental 24-hour data for accuracy in timestamp conversion and event decoding.

Main Results:

  • * The FRIENDS GUI successfully extracts, decodes, and visualizes 24-hour puffing data.
  • * Validation confirmed accurate timestamp conversion, reliable event decoding, and effective visualization of user puffing behavior.
  • * The software provides a user-friendly platform for analyzing ENDS usage patterns.

Conclusions:

  • * The FRIENDS GUI significantly improves the accessibility and interpretability of PT data.
  • * This open-source tool facilitates research into ENDS use, toxicant exposure, and regulatory science.
  • * Freely available on GitHub, FRIENDS promotes wider adoption and collaboration in the field.