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Can Morning Light Phase Advance Human Melatonin Rhythms in Less Than 24 h? [PDF]
J Pineal ResLópez-Velasco C +2 more
europepmc +1 more source
A simple cell-cycle control system in Marchantia polymorpha provides a framework for understanding plant cell proliferation. [PDF]
Plant CellRomani F +7 more
europepmc +1 more source
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Optician, 2016
In the first of a series of articles on the electromagnetic spectrum and light transmission to the eye, Coralie Barrau, Amélie Kudla and Mélanie Tessieres explain the influence of light upon the retina and review the evidence for harmful impact.
Coralie Barrau +2 more
openaire +1 more source
In the first of a series of articles on the electromagnetic spectrum and light transmission to the eye, Coralie Barrau, Amélie Kudla and Mélanie Tessieres explain the influence of light upon the retina and review the evidence for harmful impact.
Coralie Barrau +2 more
openaire +1 more source
Night light alters menstrual cycles
Psychiatry Research, 1990Dewan asserted 20 years ago that a bedside light could shorten and regularize the menstrual cycle among women with long and irregular menstrual patterns. To replicate this, seven volunteers slept with a 100-watt bulb by the bedside from days 13-17 of their menstrual cycles, while nine controls similarly used a dim red placebo (photographic safe light).
M C, Lin +3 more
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Music and Light during Indoor Cycling
Perceptual and Motor Skills, 2009The present research is a field study assessing effects of music and light on physical performance and subjective feelings of 28 participants (14 men, 14 women) in fitness classes using indoor cycling. Participants performed four sessions under different conditions of music and light.
Naama, Shaulov, Dubi, Lufi
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Shedding light on the dark side of xanthophyll cycles
New Phytologist, 2021SummaryXanthophyll cycles are broadly important in photoprotection, and the reversible de‐epoxidation of xanthophylls typically occurs in excess light conditions. However, as presented in this review, compiling evidence in a wide range of photosynthetic eukaryotes shows that xanthophyll de‐epoxidation also occurs under diverse abiotic stress conditions
Beatriz Fernández‐Marín +3 more
openaire +2 more sources
Effect of bright light on cycling performance
Medicine & Science in Sports & Exercise, 2000The purpose of this study was to examine the effect of exposure to three levels of light intensity during cycling on average power output during an all-out 20-min bout of cycle ergometry.Twelve male competitive cyclists, with a mean age of 24.3 +/- 3.2 yr, were tested on four separate occasions. During each test session, participants were instructed to
P M, O'Brien, P J, O'Connor
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Light and the Sexual Cycle of Game Birds
Science, 1937The results of these experiments has led us to conclude that light is a primary factor in inducing sexual activity in pheasants, quail and grouse, through the mediation of the hypophysis. Once this hypophysealgonad reaction is started it can not continue indefinitely with adequate light but only until the hypophysis falters in the production of the ...
L B, Clark, S L, Leonard, G, Bump
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Switch off the light on cycling, switch off the light on doping
British Journal of Sports Medicine, 2007There is rather a long history of fraud in sport competitions, and doping has plagued the Tour de France almost since its beginning in 1903, culminating on 13 July, 1967 with the dramatic death of British cyclist Tom Simpson on the climb of Mont Ventoux, attributed to the use of amphetamines and complicated by the now defunct practice of drinking as ...
LIPPI, Giuseppe +2 more
openaire +3 more sources