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  • == Alpha (α) == '''Alpha''' ({{IPA|/'ælfə/}}) is the first letter of the Greek alphabet. In the sy
    2 KB (269 words) - 21:42, 3 February 2024
  • == Alpha waves == ...8 and 12 Hz. They are typically associated with relaxed, meditative states and are most prominent in the posterior regions of the brain during periods of
    2 KB (225 words) - 06:08, 8 February 2024
  • ...Hz, "Beta1 power"); Beta Waves (16.5–20 Hz, "Beta2 power"); and High Beta Waves (20.5–28 Hz, "Beta3 power"). ...cond type of brain wave to be discovered, following the [[Alpha wave|alpha waves]].
    2 KB (279 words) - 04:11, 8 February 2024
  • == Brain waves == '''Brain waves''' (/breɪn weɪvz/), also known as neural oscillations, are rhythmic or re
    2 KB (312 words) - 21:15, 12 February 2024
  • == Alpha rhythm == ...ation with closed eyes. Alpha waves are reduced with open eyes, drowsiness and sleep.
    1 KB (208 words) - 21:47, 8 February 2024
  • == Theta waves == ...th various states of consciousness, including deep relaxation, meditation, and the early stages of sleep.
    2 KB (263 words) - 22:20, 8 February 2024
  • == Delta waves == ...e [[brain waves]] that are associated with the deepest stages of [[sleep]] and aid in characterizing the depth of non-rapid eye movement (NREM) sleep.
    1 KB (211 words) - 06:16, 8 February 2024
  • ...phalogram). The term "brainwave" is derived from the English words "brain" and "wave", indicating the wave-like patterns of neural activity. ...a combination of "brain", from the Old English ''brægen'' meaning "brain", and "wave", from the Old English ''wafian'' meaning "to wave or fluctuate".
    2 KB (231 words) - 22:02, 13 February 2024
  • ...scillation" is derived from the Latin ''neuralis'' meaning "of the nerves" and the Latin ''oscillatio'' meaning "a swinging". * [[Delta wave|Delta waves]] (0.5–4 Hz)
    2 KB (217 words) - 23:26, 14 February 2024
  • ...lpha]], [[Beta wave|beta]], [[Delta wave|delta]], and [[Theta wave|theta]] waves. ...e in such a way that each particle or element influences the adjacent ones and that may take the form of an elastic deformation or of a variation of level
    2 KB (247 words) - 07:02, 14 February 2024
  • ...is derived from the Greek letter "θ" (theta), which is used in mathematics and science as a symbol for a specific type of wave. ...y are often associated with drowsiness, hypnagogic and hypnopompic states, and the early stages of sleep.
    2 KB (239 words) - 05:57, 8 February 2024
  • ...from the Latin "radius" meaning "ray" and "isotope" from the Greek "isos" and "topos" meaning "same place", referring to the fact that isotopes of an ele ...mit: [[Alpha particle|Alpha particles]], [[Beta particle|Beta particles]], and [[Gamma ray|Gamma rays]].
    2 KB (302 words) - 22:36, 14 February 2024
  • ...st of the brainwave frequencies and are associated with peak concentration and high levels of cognitive functioning. ...involved in higher mental activity, including perception, problem solving, and consciousness.
    1 KB (192 words) - 21:00, 12 February 2024
  • ...[[Delta]], which is used in the field of [[mathematics]] to denote change, and "wave", a term commonly used in [[physics]] to describe the oscillation or ...REM sleep]] (non-rapid eye movement), also known as slow-wave sleep (SWS), and aid in characterizing the depth of sleep.
    1 KB (194 words) - 04:14, 8 February 2024
  • ...stable atomic nucleus loses energy by emitting radiation in the form of an alpha particle, beta particle, or gamma ray. The term "radioactive" comes from the Latin ''radius'', meaning "ray", and the Greek ''aktinos'', meaning "ray". "Decay" comes from the Old French ''d
    2 KB (395 words) - 12:03, 10 February 2024
  • ...of electromagnetic waves (gamma or X-rays) or particles (neutrons, beta or alpha). The term "ionizing" means that the energy carried by these types of radia ...rge and carry a double positive charge. They interact strongly with matter and lose their energy quickly.
    2 KB (338 words) - 17:40, 10 February 2024
  • ...nal Committee for Weights and Measures|International Committee for Weights and Measures]] adopted hertz as an SI unit in 1930. ...lography (EEG)]]. These tests measure the electrical activity of the heart and brain, respectively, in hertz.
    2 KB (256 words) - 04:03, 4 February 2024
  • ...letter of the Greek alphabet, gamma (γ), following the convention of alpha and beta radiation, which he had previously discovered. ...tomic nuclei. It consists of the shortest wavelength electromagnetic waves and so imparts the highest photon energy. Gamma Rays are similar to [[X-rays]].
    2 KB (229 words) - 04:15, 8 February 2024
  • ...aɪˈɒlədʒi/), also known as '''radiation biology''', is a field of clinical and basic medical sciences that involves the study of the action of [[ionizing ...ived from three words: 'Radio' from [[radiation]], 'bio' from [[biology]], and 'logy' from the Greek word 'logia' meaning 'study of'.
    2 KB (315 words) - 02:47, 7 February 2024
  • ...ls back to Earth's surface. The term is derived from the phrase "fall out" and was coined in reference to the aftermath of nuclear disasters. The term "fallout" is an English compound word combining "fall" and "out", which directly refers to the process of radioactive particles fallin
    2 KB (242 words) - 22:41, 4 February 2024

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