Results 211 to 220 of about 1,381,495 (262)
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The Laryngoscope, 1975
AbstractThe introduction of high intensity proximal light sources has greatly improved the already high standard in technique of endoscopy. They enable us to illuminate the periphery of the bronchi. The advantage of better illumination must, nevertheless, be paid for with a levelling of contrast, as the bright light outshines the fine differences (e.g.,
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AbstractThe introduction of high intensity proximal light sources has greatly improved the already high standard in technique of endoscopy. They enable us to illuminate the periphery of the bronchi. The advantage of better illumination must, nevertheless, be paid for with a levelling of contrast, as the bright light outshines the fine differences (e.g.,
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Annals of Internal Medicine, 2001
Feeling the warmth of my son's voice or his broad, reassuring man's hand on my shoulder, I travel by reflex back half my lifetime and nearly all of his, returning to a night when his eyes wouldn't ...
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Feeling the warmth of my son's voice or his broad, reassuring man's hand on my shoulder, I travel by reflex back half my lifetime and nearly all of his, returning to a night when his eyes wouldn't ...
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Vision Research, 1990
Rats have been extensively used in light damage studies. Retinal damage threshold for white light were found at 1-10 J/cm2, and the action spectrum resembled the absorption spectrum of visual pigment. We wished to answer the question whether a different class of light damage, the "blue light hazard", with white light damage thresholds at about 300 J ...
Norren, D. van, Schellekens, P.
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Rats have been extensively used in light damage studies. Retinal damage threshold for white light were found at 1-10 J/cm2, and the action spectrum resembled the absorption spectrum of visual pigment. We wished to answer the question whether a different class of light damage, the "blue light hazard", with white light damage thresholds at about 300 J ...
Norren, D. van, Schellekens, P.
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Aureochromes – Blue Light Receptors
Biochemistry (Moscow), 2018A variety of living organisms including bacteria, fungi, animals, and plants use blue light (BL) to adapt to changing ambient light. Photosynthetic forms (plants and algae) require energy of light for photosynthesis, movements, development, and regulation of activity.
A B, Matiiv, E M, Chekunova
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Science, 1998
Plants can sense day length and use this information to trigger flowering. As described in a research commentary by SuAirez-LA³pez and Coupland, work published in this issue ( Guo et al.) describes a new photoperiod receptor, one that detects blue light, in the plant Arabidopsis.
P, Suárez-López, G, Coupland
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Plants can sense day length and use this information to trigger flowering. As described in a research commentary by SuAirez-LA³pez and Coupland, work published in this issue ( Guo et al.) describes a new photoperiod receptor, one that detects blue light, in the plant Arabidopsis.
P, Suárez-López, G, Coupland
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Cryptogam blue-light photoreceptors
Current Opinion in Plant Biology, 2003Blue light regulates various aspects of plant development. Extensive research using Arabidopsis thaliana has advanced our understanding of blue-light photoreceptors and signal transduction pathways in flowering plants, but our knowledge of blue-light signaling in other plant systems, particularly in cryptogams (i.e.
Noriyuki, Suetsugu, Masamitsu, Wada
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Respiration induced by blue light
Planta, 1966The high rate of respiration in Chlorella which is found after feeding with glucose or after a longer period of photosynthesis, declines in the dark in the course of hours to about a quarter of its original value.
W, Kowallik, H, Gaffron
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Blue Light Perception in Bacteria
Photosynthesis Research, 2004This review focuses on the blue light responses in bacteria and on the bacterial proteins which have been demonstrated to function as blue light receptors. Results of the previous years reveal that different types of photoreceptors have already evolved in prokaryotes.
Stephan, Braatsch, Gabriele, Klug
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Blue Light and Bilirubin Excretion
Science, 1980Blue light converts bilirubin in the skin of jaundiced rats to metastable geometric isomers that are transported in blood and excreted in bile. The same reaction probably occurs in jaundiced babies exposed to light, particularly during treatment with phototherapy.
A F, McDonagh, L A, Palma, D A, Lightner
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Comment on: The Blue Light Hazard Versus Blue Light Hype
American Journal of Ophthalmology, 2022Billy R, Hammond, Lisa, Renzi-Hammond
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