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The best studied rhythm in chronobiology is the circadian rhythm, a roughly 24-hour cycle shown by physiological processes in all these organisms. The term circadian comes from the Latin circa, meaning "around" and dies, "day", meaning "approximately a day." It is regulated by circadian clocks.
Unrhymed cadence in Vers libre is built upon 'organic rhythm,' or the rhythm of the speaking voice with its necessity for breathing, rather than upon a strict metrical system. [10] Cadence in free verse came to mean whatever the writer liked, some claiming verse and poetry had it, but prose did not, but for some it was synonymous with free ...
This produces a rhythm classically compared to the cadence of the word "Kentucky" with the final syllable ("-CKY [2] ") [3] representing S 3. One may also use the phrase "Slosh’-ing-IN" to help with the cadence (Slosh S 1, -ing S 2, -in S 3), as well as the pathology of the S 3 sound, [4] or any other number of local variants.
A circadian rhythm (/ s ər ˈ k eɪ d i ə n /), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours. Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous ) and responds to the environment (is entrained by the environment).
The E oscillator, on the other hand, is synchronized to dusk and experiences deceleration from light, meaning that the period increases for each subsequent cycle. They postulated that the E&M model had an enhanced ability to adjust the circadian rhythm to the season and changes in day length. [1]
A harmonic cadence is a progression of two or more chords that concludes a phrase, section, or piece of music. [3] A rhythmic cadence is a characteristic rhythmic pattern that indicates the end of a phrase. [4] A cadence can be labeled "weak" or "strong" depending on the impression of finality it gives.
An example is the interaction between circadian rhythms and environmental cues, such as light and temperature. Entrainment helps organisms adapt their bodily processes according to the timing of a changing environment. [1] For example, entrainment is manifested during travel between time zones, hence why humans experience jet lag.
In vertebrates, the master circadian clock is contained within the suprachiasmatic nucleus (SCN), a bilateral nerve cluster of about 20,000 neurons. [10] [11] The SCN itself is located in the hypothalamus, a small region of the brain situated directly above the optic chiasm, where it receives input from specialized photosensitive ganglion cells in the retina via the retinohypothalamic tract.