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Muscles for Facial Expressions01:14

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Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
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Related Experiment Video

Updated: Feb 2, 2026

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
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Facial paralysis reconstruction.

Hilde Brunvold Bjærke, Therese Halvorsen Bjark, Thomas Berg

    Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke
    |November 14, 2018
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    Summary
    This summary is machine-generated.

    Facial paralysis impacts eye closure, expression, and more, but surgical treatments can significantly improve function and quality of life for most patients. This review covers key surgical reconstruction and treatment options.

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    Area of Science:

    • Reconstructive surgery
    • Facial nerve disorders

    Background:

    • Facial paralysis presents significant challenges, affecting vital functions like eye closure, facial expression, and speech.
    • It can lead to social stigma and reduced quality of life for affected individuals.

    Purpose of the Study:

    • To review current surgical reconstruction methods for facial paralysis.
    • To provide an overview of treatment options available to patients.

    Main Methods:

    • Literature review of surgical techniques and treatment modalities.
    • Analysis of reconstructive approaches for facial paralysis.

    Main Results:

    • Various surgical interventions exist to restore function and aesthetics.
    • Treatment success varies depending on the cause and severity of paralysis.

    Conclusions:

    • Effective surgical and non-surgical treatments are available for facial paralysis.
    • Improving patient function and quality of life is achievable through tailored treatment plans.