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Related Concept Videos

Reflection of Waves01:07

Reflection of Waves

When a wave travels from one medium to another, it gets reflected at the boundary of the second medium. A common example of this is when a person yells at a distance from a cliff and hears the echo of their voice. The sound waves (longitudinal waves) traveling in the air are reflected from the bounding cliff. Similarly, flipping one end of a string whose other end is tied to a wall causes a pulse (transverse wave) to travel through the string, which gets reflected upon reaching the wall. In...
Standing Waves01:17

Standing Waves

Sometimes waves do not seem to move; rather, they just vibrate in place. Unmoving waves can be seen on the surface of a glass of milk kept in a refrigerator, which is one example of standing waves. Vibrations from the refrigerator motor create waves on the milk that oscillate up and down but do not seem to move across the surface. These waves are formed or created by the superposition of two or more identical moving waves in opposite directions. The waves move through each other, with their...
Travelling Waves01:04

Travelling Waves

A wave is a disturbance that propagates from its source, repeating itself periodically, and is typically associated with simple harmonic motion. Mechanical waves are governed by Newton's laws and require a medium to travel. A medium is a substance in which a mechanical wave propagates, and the medium produces an elastic restoring force when it is deformed.
Water waves, sound waves, and seismic waves are some examples of mechanical waves. For water waves, the wave propagation medium is water;...
Wave Parameters01:10

Wave Parameters

The simplest mechanical waves are associated with simple harmonic motion and repeat themselves for several cycles. These simple harmonic waves can be modeled using a combination of sine and cosine functions. Consider a simplified surface water wave that moves across the water's surface. Unlike complex ocean waves, in surface water waves, water moves vertically, oscillating up and down, whereas the disturbance of the wave moves horizontally through the medium. If a seagull is floating on the...
Shock Waves01:16

Shock Waves

While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high pressures...
Kinetic and Potential Energy of a Wave01:10

Kinetic and Potential Energy of a Wave

All forms of waves carry energy; this is directly visualized in nature. For instance, the waves of earthquakes are so intense that they can shake huge concrete buildings, causing them to fall. Loud sounds can damage nerve cells in the inner ear, causing permanent hearing loss. The waves of the oceans can erode beaches. 
In mechanical waves, the amount of energy is related to their amplitude and frequency. In the context of the above examples, large-amplitude earthquakes produce large ground...

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Related Experiment Video

Updated: May 12, 2026

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

The wave has finally broken: now what?

Donald W Simborg1, Don Eugene Detmer, Eta S Berner

  • 1dsimborg@gmail.com

Journal of the American Medical Informatics Association : JAMIA
|March 30, 2013
PubMed
Summary

The adoption of electronic health records (EHR) has accelerated due to legislation, leading to increased usage and infrastructure development. Challenges like user interface issues and potential fraud persist, but future advancements in interoperability and personalized medicine are expected.

Keywords:
American Recovery and Reinvestment ActElectronic Health RecordsHealth PolicyHistory, 21st Century

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Last Updated: May 12, 2026

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Area of Science:

  • Health Informatics
  • Medical Technology Adoption
  • Healthcare Policy

Background:

  • The 2005 paper predicted rapid electronic health record (EHR) adoption within 5 years with incentives.
  • The Health Information Technology for Economic and Clinical Health Act of 2009 stimulated significant EHR implementation.
  • The period since 2009 has seen both progress and challenges in EHR adoption and utilization.

Purpose of the Study:

  • To review the developments in electronic health record (EHR) adoption since the 2009 HITECH Act.
  • To identify both positive and negative outcomes of EHR implementation.
  • To forecast future trends in health information technology (IT) over the next five years.

Main Methods:

  • Review of developments following the 2009 HITECH legislation.
  • Analysis of positive and negative trends in EHR adoption and use.
  • Anticipation of future advancements and challenges in health IT.

Main Results:

  • Increased EHR adoption, national network infrastructure, and recognition of clinical informatics.
  • Persistent issues include user interface problems, distrust of EHR notes, and increased fraud potential.
  • Anticipated near-universal EHR adoption, enhanced standards, interoperability, and greater congressional involvement in health IT.

Conclusions:

  • EHR adoption has surged, driven by legislative incentives, but challenges remain.
  • Future trends point towards universal adoption, improved interoperability, and advanced data analytics for personalized healthcare.
  • The healthcare system is evolving towards a 'continuously learning' model with integrated technologies like telemedicine and AI-assisted diagnosis.