Definitions for diurnal variation
di·ur·nal vari·a·tion

Princeton's WordNetRate this definition:0.0 / 0 votes

1. diurnal variationnoun

   fluctuations that occur during each day

WikipediaRate this definition:0.0 / 0 votes

1. diurnal variation

   A chronotype is the behavioral manifestation of underlying circadian rhythm's myriad of physical processes. A person's chronotype is the propensity for the individual to sleep at a particular time during a 24-hour period. Eveningness (delayed sleep period; most active and alert in the evening) and morningness (advanced sleep period; most active and alert in the morning) are the two extremes with most individuals having some flexibility in the timing of their sleep period. However, across development there are changes in the propensity of the sleep period with pre-pubescent children preferring an advanced sleep period, adolescents preferring a delayed sleep period and many elderly preferring an advanced sleep period. The causes and regulation of chronotypes, including developmental change, individual propensity for a specific chronotype, and flexible versus fixed chronotypes have yet to be determined. However, research is beginning to shed light on these questions, such as the relationship between age and chronotype. There are candidate genes (called CLOCK genes) that exist in most cells in the body and brain, referred to as the circadian system that regulate physiological phenomena (hormone levels, metabolic function, body temperature, cognitive faculties, and sleeping). With the exception of the most extreme and rigid chronotypes, regulation is likely due to gene-environment interactions. Important environmental cues (zeitgebers) include light, feeding, social behavior, and work and school schedules. Additional research has proposed an evolutionary link between chronotype and nighttime vigilance in ancestral societies.Humans are normally diurnal creatures, that is to say they are active in the daytime. As with most other diurnal animals, human activity-rest patterns are endogenously controlled by biological clocks with a circadian (~24-hour) period. Chronotypes have also been investigated in other species, such as fruit flies and mice.Normal variation in chronotype encompasses sleep–wake cycles that are two to three hours later in evening types than morning types. Extremes outside of this range can cause a person difficulty in participating in normal work, school, and social activities. If a person's "lark" or (more commonly) "owl" tendencies are strong and intractable to the point of disallowing normal participation in society, the person is considered to have a circadian rhythm sleep disorder.

ChatGPTRate this definition:0.0 / 0 votes

1. diurnal variation

   Diurnal variation refers to regular changes or fluctuations that occur in a 24-hour cycle, corresponding to the day-night cycle. These changes can be observed in various fields such as meteorology, biology, medicine, and environmental science, affecting temperature, air pressure, human behavior, animal activity, hormone levels, and more.

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1. • Variation

How to pronounce diurnal variation?

1. Alex

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How to say diurnal variation in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of diurnal variation in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of diurnal variation in Pythagorean Numerology is: 8

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=diurnal variation
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Diurnal_Variation
3. ^ ChatGPT
   https://chat.openai.com