Results 81 to 90 of about 346,110 (185)

Circadian Rhythm, Lifestyle and Health: A Narrative Review

open access: yesIranian Journal of Public Health, 2018
Background: The circadian rhythm regulation plays a crucial role in people`s healthy lives affected by factors consisting of cosmic events related to the universe and earth, environmental factors (light, night and day duration, seasons) and lifestyles ...
Dariush FARHUD, Zahra ARYAN
doaj  

Robustness from flexibility in the fungal circadian clock [PDF]

open access: yes, 2010
Background Robustness is a central property of living systems, enabling function to be maintained against environmental perturbations. A key challenge is to identify the structures in biological circuits that confer system-level properties such as ...
Andrew J Millar   +13 more
core   +1 more source

Modeling the effect of oscillation in receptor expression on synchrony in the mammalian circadian model [PDF]

open access: yes, 2011
The suprachiasmatic nucleus (SCN) is located in the hypothalamus and contains the circadian mammalian pacemaker that is responsible for endogeneous biological timekeeping.
Saccoman, Claudia
core  

Circadian and homeostatic sleep regulation in humans : effects of age and monochromatic light [PDF]

open access: yes, 2006
The first part of this thesis deals with age-related modifications in the circadian and homeostatic sleep regulation, whereas in the second part, the effects of an evening exposure to monochromatic light on subsequent sleep architecture and sleep ...
Münch, Mirjam
core   +1 more source

The effect of a non-circadian photoperiod on the growth, physiology, and production of a romaine lettuce cultivar [PDF]

open access: yes, 2022
The circadian rhythm serves to match plant physiology and behavior with the environmental cycles caused by the rotation of the planet. The circadian rhythm contributes towards the structure and function of plants and their overall performance which ...
Hughes, Joshua
core  

An insight into light as a chronobiological therapy in affective disorders [PDF]

open access: yes, 2014
The field of chronobiology has vastly expanded over the past few decades, bringing together research from the fields of circadian rhythms and sleep. The importance of the environmental day–night cycle on our health is becoming increasingly evident as we ...
Lall, Gurprit S.   +10 more
core   +1 more source

Polymorphisms in the circadian expressed genes PER3 and ARNTL2 are associated with diurnal preference and GNβ3 with sleep measures [PDF]

open access: yes, 2014
Sleep and circadian rhythms are intrinsically linked, with several sleep traits, including sleep timing and duration, influenced by both sleep homeostasis and the circadian phase.
Lester, Kathryn   +34 more
core   +1 more source

Detection and Analysis of Circadian Biomarkers for Metabolic Syndrome Using Wearable Data: Cross-Sectional Study

open access: yesJMIR Medical Informatics
BackgroundWearable devices are increasingly used for monitoring health and detecting digital biomarkers related to chronic diseases such as metabolic syndrome (MetS).
Jeong-Kyun Kim, Sujeong Mun, Siwoo Lee
doaj   +1 more source

Development of salivary cortisol circadian rhythm in preterm infants.

open access: yesPLoS ONE, 2017
ObjectivesTo investigate at what age preterm infants develop a salivary cortisol circadian rhythm and identify whether it is dependent on gestational age and/or postnatal age.
Katrin Ivars   +5 more
doaj   +1 more source

Circadian and ultradian NREM-REM sleep modulation of dream recall : effects of age and spectral activity [PDF]

open access: yes, 2011
This thesis deals with the electrophysiological correlates of sleep prior to dream recall and the age-related effects on dream processing. The dual NREM/REM sleep cycle and the circadian modulation of REM sleep sum to generate dream processing.
Laxhmi Chellappa, Sarah
core   +1 more source

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