Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Hearing01:31

Hearing

57.5K
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
57.5K
Line Loss01:10

Line Loss

548
The different configurations of source-load connections include wye (star) and delta connections. The relationship between line and phase voltages and currents varies depending on the configuration. When the source is supplying power, it is transmitted through the wires to the load, and during this transmission, some power is absorbed by the wires, leading to line loss.
Line loss impacts power delivery efficiency in a balanced three-phase circuit. The symmetry in such a circuit simplifies the...
548
Reducing Line Loss01:18

Reducing Line Loss

395
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss in...
395
Major Losses in Pipes01:28

Major Losses in Pipes

2.0K
When a fluid flows through a pipe, it experiences energy losses due to frictional resistance along the pipe walls, known as major losses. These energy losses result in a pressure drop, which varies based on the flow conditions — whether laminar or turbulent — and the specific physical properties of the fluid and pipe.
Fluid flow can be classified as laminar or turbulent, primarily based on the Reynolds number. This dimensionless number reflects the relative influence of inertial to viscous...
2.0K
Minor Losses in Pipes01:25

Minor Losses in Pipes

2.0K
In pipe systems, minor losses refer to energy losses arising from components such as valves, bends, fittings, expansions, and other features that disrupt the steady flow of fluid. These disturbances cause energy dissipation through turbulence and resistance, which engineers quantify to manage system efficiency effectively.
Valves play a significant role in generating minor losses by obstructing or redirecting the fluid flow. When a valve is closed or partially closed, it restricts the flow...
2.0K
Energy Losses in Transformers01:21

Energy Losses in Transformers

1.4K
In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality,  the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
There are four main reasons for energy losses in transformers.
The first cause can be  the high resistance of the...
1.4K

You might also read

Related Articles

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

Sort by
Same author

The Context Team: Partnering With Young Parents.

Pediatrics·2026
Same author

Impact of Secondary Prevention on Mortality in the Building Trades National Medical Screening Program: Effectiveness of Occupational High-Risk Management.

American journal of industrial medicine·2026
Same author

Sheldon W. Samuels, A Champion of Air Pollution Control and Worker Health.

American journal of industrial medicine·2025
Same author

Evaluation of Early Lung Cancer Detection in a Population at High Risk due to Occupation.

American journal of industrial medicine·2025
Same author

Is Work-Related Hearing Loss Associated With Dementia? Evidence From a High-Risk Population.

American journal of industrial medicine·2025
Same author

Occupational Risk: A Gap in Lung Cancer Screening Guidelines.

The Annals of thoracic surgery·2025

Related Experiment Video

Updated: Feb 13, 2026

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
03:49

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation

Published on: October 11, 2024

1.2K

Hearing loss among older construction workers: Updated analyses.

John Dement1, Laura S Welch2, Knut Ringen2

  • 1Division of Occupational and Environmental Medicine, Duke University Medical Center, Durham, North Carolina.

American Journal of Industrial Medicine
|March 2, 2018
PubMed
Summary
This summary is machine-generated.

Construction workers face a high risk of hearing loss due to noise and solvent exposure. Prevention strategies should target reducing these exposures and smoking to protect worker hearing health.

Keywords:
construction tradeshypertensionnoise induced hearing losssmokingsolvents

More Related Videos

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
09:44

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

19.8K
Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage
07:13

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage

Published on: February 10, 2023

2.9K

Related Experiment Videos

Last Updated: Feb 13, 2026

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
03:49

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation

Published on: October 11, 2024

1.2K
Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
09:44

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

19.8K
Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage
07:13

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage

Published on: February 10, 2023

2.9K

Area of Science:

  • Occupational Health
  • Audiology
  • Environmental Health

Background:

  • Previous research indicated significant noise-associated hearing loss in construction workers.
  • This follow-up study expanded the population size and incorporated additional risk factors.

Purpose of the Study:

  • To investigate the prevalence and risk factors of hearing loss in a large construction worker population.
  • To compare hearing loss risk in construction workers against reference groups with lower exposures.

Main Methods:

  • Audiometry, clinical chemistry, and personal/work history data were collected.
  • Qualitative exposure metrics for noise and solvents were developed.
  • Analyses included comparisons with internal and external low-exposure worker populations.

Main Results:

  • A 58% prevalence of hearing loss was observed across 19,127 construction workers.
  • Increased hearing loss risk was associated with all construction trades and longer work duration.
  • Noise exposure, solvent exposure, hypertension, and smoking were identified as significant risk factors.

Conclusions:

  • Evidence supports a causal link between construction work and hearing loss.
  • Interventions should prioritize reducing occupational exposure to noise, solvents, and smoking.
  • Protecting construction worker hearing requires a multi-faceted prevention approach.