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  2. Recruitment (medicine) - Wikipedia

    en.wikipedia.org/wiki/Recruitment_(medicine)

    Recruitment, in medicine, is a physical condition of the inner ear that leads to reduced tolerance of loudness. It commonly occurs in individuals who suffer hearing loss due to cochlear damage. While low-magnitude sounds cannot be heard in the affected ear(s), the perceived loudness increases over-proportionally with sound volume once the ...

  3. Spatial frequency domain imaging - Wikipedia

    en.wikipedia.org/wiki/Spatial_frequency_domain...

    The camera which receives the output is positioned perpendicular to the field of view. In regard to the properties of the light, it can be represented as a function of wavelength, spatial frequency, and angle of the incidence (λ,f x,θ). The light will project onto the media where the transmitted and reflected light will then be received by ...

  4. Near-infrared window in biological tissue - Wikipedia

    en.wikipedia.org/wiki/Near-infrared_window_in...

    Because scattering has weak dependence on wavelength, the NIR window is primarily limited by the light absorption of blood at short wavelengths and water at long wavelengths. The technique using this window is called NIRS. Medical imaging techniques such as fluorescence image-guided surgery often make use of the NIR window to detect deep ...

  5. Visible light imaging - Wikipedia

    en.wikipedia.org/wiki/Visible_Light_Imaging

    The United States Department of Veterans Affairs was an early adopter of a standardized approach to incorporating visible light images into the electronic medical record [7]. Increasingly, visible light imaging is being deployed beyond individual departments, as part of a trend referred to as Enterprise Imaging [ 8 ] .

  6. Biophotonics - Wikipedia

    en.wikipedia.org/wiki/Biophotonics

    GaN covers a wavelength spectrum from 375 to 488 nm (commercial products at 515 have been announced recently) whereas GaAs covers a wavelength spectrum starting from 635 nm. Most commonly used wavelengths from diode lasers in biophotonics are: 375, 405, 445, 473, 488, 515, 640, 643, 660, 675, 785 nm. Laser Diodes are available in 4 classes:

  7. Electromyography - Wikipedia

    en.wikipedia.org/wiki/Electromyography

    The signals can be analyzed to detect abnormalities, activation level, or recruitment order, or to analyze the biomechanics of human or animal movement. Needle EMG is an electrodiagnostic medicine technique commonly used by neurologists. Surface EMG is a non-medical procedure used to assess muscle activation by several professionals, including ...

  8. Photothermal therapy - Wikipedia

    en.wikipedia.org/wiki/Photothermal_Therapy

    Photothermal therapy (PTT) refers to efforts to use electromagnetic radiation (most often in infrared wavelengths) for the treatment of various medical conditions, including cancer. This neurotherapy is an extension of photodynamic therapy, in which a photosensitizer is excited with specific band light.

  9. Blue light spectrum - Wikipedia

    en.wikipedia.org/wiki/Blue_light_spectrum

    The blue light spectrum, characterized by wavelengths between 400 and 500 nanometers, has a broad impact on human health, influencing numerous physiological processes in the human body. Although blue light is essential for regulating circadian rhythms , improving alertness, and supporting cognitive function , its widespread presence has raised ...

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