Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Bode Plots Construction

Bode Plots Construction

The Bode plot is an essential tool in control system analysis, mapping the frequency response of a system through a magnitude plot and a phase plot, both against a logarithmic frequency axis. To construct a Bode plot, consider the transfer function H(ω):

Electrocardiogram

Electrocardiogram

An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

CaDAVEr: a metagenome-assembled genome catalog of microbial decomposers across vertebrate environments.

Microbiology resource announcements·2025

Same author

Public hospitals' risk communication strategies during COVID-19.

Communication & medicine·2025

Same author

A conserved interdomain microbial network underpins cadaver decomposition despite environmental variables.

Nature microbiology·2024

Same author

Identification of fungi found on desiccated human remains in an arid outdoor environment.

Journal of forensic sciences·2022

Same author

Diagnostic Sensitivity of the Dynamic Appraisal of Situational Aggression to Predict Violence and Aggression by Behavioral Health Patients in the Emergency Department.

Journal of emergency nursing·2020

Same author

Autopsy as a form of evisceration: Implications for decomposition rate, pattern, and estimation of postmortem interval.

Forensic science international·2019

Search research articles

Related Experiment Video

Updated: Feb 18, 2026

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test

Published on: September 22, 2023

Bioelectrical Impedance as a Technique for Estimating Postmortem Interval,.

Eriek S Hansen¹, Christiane Baigent², Sophia I Reck¹

¹Department of Biological Sciences, Colorado Mesa University, 1100 North Avenue, Grand Junction, CO, 81501.

Journal of Forensic Sciences

|November 17, 2017

Summary

This summary is machine-generated.

Estimating postmortem interval (PMI) is crucial for death investigations. Bioelectrical impedance analysis (BIA) shows impedance changes correlate with decomposition, supporting its use for PMI estimation.

Keywords:

bioelectrical impedance analysis forensic anthropology forensic pathology forensic science forensic taphonomy human decomposition postmortem interval

More Related Videos

Evaluation of Fluid Overload by Bioelectrical Impedance Vectorial Analysis

Evaluation of Fluid Overload by Bioelectrical Impedance Vectorial Analysis

Published on: August 17, 2022

Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis

Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis

Published on: June 30, 2023

Related Experiment Videos

Last Updated: Feb 18, 2026

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test

Evaluation of Hydration Status by Bioelectrical Impedance Vector Analysis in Patients with Ischemic Heart Disease Undergoing Exercise Stress Test

Published on: September 22, 2023

Evaluation of Fluid Overload by Bioelectrical Impedance Vectorial Analysis

Evaluation of Fluid Overload by Bioelectrical Impedance Vectorial Analysis

Published on: August 17, 2022

Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis

Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis

Published on: June 30, 2023

Area of Science:

Forensic Science
Biophysics

Background:

Accurate postmortem interval (PMI) estimation is vital for forensic investigations.
Cadaver decomposition presents challenges for traditional PMI estimation methods.

Purpose of the Study:

To test the hypothesis that a cadaver's impedance changes predictably during decomposition.
To explore the potential of bioelectrical impedance analysis (BIA) for estimating PMI.

Main Methods:

Utilized bioelectrical impedance analysis (BIA) equipment on four cadavers.
Applied a fixed-amplitude, single-frequency current to measure impedance (Z), resistance (R), and reactance (Xc) over time.
Performed quadratic regression analysis between impedance and accumulated degree days (ADD).

Main Results:

A statistically significant parabolic relationship was observed between impedance (Z) and accumulated degree days (ADD).
The study supports the hypothesis that BIA-measured impedance is related to PMI.

Conclusions:

Bioelectrical impedance analysis (BIA) shows promise as a method for estimating postmortem interval (PMI).
Further research is required to address the observed parabolic relationship and refine the methodology for practical application.