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  1. HOME - United Leukodystrophy Foundation

    2 days ago · The United Leukodystrophy Foundation (ULF), incorporated in 1982, is a non-profit, voluntary health organization dedicated to funding cutting-edge research and to providing …

  2. Ultra low frequency - Wikipedia

    Ultra low frequency (ULF) is the ITU designation [1][2] for the frequency range of electromagnetic waves between 300 hertz and 3 kilohertz, corresponding to wavelengths between 1,000 and …

  3. United Leukodystrophy Foundation - National Organization for Rare Disorders

    The United Leukodystrophy Foundation (ULF) is a voluntary, non-profit organization dedicated to helping children and adults with leukodystrophy and assisting the family members, caregivers, …

  4. Meaning, origin and history of the name Ulf

    Apr 25, 2021 · From the Old Norse byname Úlfr meaning "wolf". Name Days?

  5. Ultralow Frequency (ULF): Definition, Examples & Quiz

    Sep 21, 2025 · Learn how ULF waves are generated and their role in scientific research and everyday technology. Ultralow Frequency (ULF) refers to electromagnetic waves with …

  6. Ultra low frequency wave | physics | Britannica

    …class of electromagnetic waves called ultralow-frequency (ULF) waves, with frequencies from one to 1,000 megahertz. Because the frequencies are so low, the waves are usually …

  7. ULTRALOW FREQUENCY Definition & Meaning - Merriam-Webster

    The meaning of ULTRALOW FREQUENCY is a radio frequency in the lower range of the radio spectrum from about 300 Hz to 3 kHz —abbreviation ULF. How to use ultralow frequency in a …

  8. Ultra_low_frequency - chemeurope.com

    The Ultra Low Frequency (ULF) is the frequency range between 300 hertz and 3 kilohertz. Many types of waves in the ULF frequency band can be observed in the magnetosphere and on the …

  9. ULF – Knowledge and References – Taylor & Francis

    Ultra low frequency (ULF) refers to the portion of the electromagnetic spectrum that ranges from 300 Hz to 3000 Hz, with a frequency range of up to 0.003 Hz. Atmospheric electrical …

  10. About the ULF - United Leukodystrophy Foundation

    The ULF works to establish a communication network among families; as well as increases public awareness and acts as an information source for health care providers by promoting and …