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Related Concept Videos

Hearing01:31

Hearing

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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.
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Barriers to Effective Communication II01:21

Barriers to Effective Communication II

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The barriers to effective communication also include cultural barriers, semantic barriers, gender barriers, and time constraints.
Cultural barriers:
Differences in values, beliefs, religion, knowledge, and tradition can significantly impact communication. Awareness of nonverbal cues is critical, especially when conversing with a patient from a different culture. What appears appropriate in one culture may be inappropriate in another.
Semantic barriers:
As a result of their tendency to use...
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Barriers to Effective Communication I01:30

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A communication barrier is any distortion or interruption during a conversation, resulting in miscommunication of the message. A good communicator should know these barriers and continuously check for the listener's understanding by obtaining feedback.
Communication barriers include the following:
Physiological barriers: They are limitations caused by a person's health condition or disability, such as hearing loss, poor eyesight, illness, or unconsciousness. An example to overcome this...
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Echo01:06

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The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
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Sound Intensity Level00:53

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Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
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Sound Waves: Interference00:53

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Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
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Related Experiment Video

Updated: Mar 25, 2026

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
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"Speak Up, We Can't Hear You".

Jocelyn Downie1

  • 1Professor, Faculties of Law and Medicine, Dalhousie University, Halifax, NS.

Healthcarepapers
|February 13, 2016
PubMed
Summary

Physicians should openly discuss their support for legalized assisted death. Growing global medical community support for euthanasia indicates a need for legislative changes and physician advocacy.

Area of Science:

  • Medical Ethics
  • Public Health Policy

Background:

  • Physician attitudes towards assisted death are evolving.
  • International trends show increasing support for euthanasia within the medical community.

Purpose of the Study:

  • To advocate for physicians to openly support legalized assisted death.
  • To highlight the growing support for euthanasia among medical professionals.
  • To encourage physician education for effective patient advocacy.

Main Methods:

  • Review of international evidence on physician support for euthanasia.
  • Analysis of trends in medical community attitudes towards assisted death.

Main Results:

  • Support for euthanasia is increasing among physicians globally.

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  • Many physicians desire legislative changes to accommodate assisted death.

    • Conclusions:

    • Physicians should be transparent about their stance on assisted death.
    • Further education is needed for physicians to effectively advocate for patients regarding end-of-life choices.