Results 291 to 300 of about 6,322,087 (352)
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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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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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Advanced Functional Materials, 2019
Ruddlesden–Popper perovskite, (PEA)2PbBr4 (PEA = C8H9NH3), is a steady and inexpensive material with a broad bandgap and a narrow‐band emission. These features make it a potential candidate for deep‐blue light‐emitting diodes (LEDs).
Wei Deng +5 more
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Ruddlesden–Popper perovskite, (PEA)2PbBr4 (PEA = C8H9NH3), is a steady and inexpensive material with a broad bandgap and a narrow‐band emission. These features make it a potential candidate for deep‐blue light‐emitting diodes (LEDs).
Wei Deng +5 more
semanticscholar +1 more source
Scientia Horticulturae, 2019
Plant growth and physiology are strongly influenced by blue and red lights. When exposed to prolonged red light, leaf photosynthesis is severely impaired.
Yanxiu Miao +4 more
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Plant growth and physiology are strongly influenced by blue and red lights. When exposed to prolonged red light, leaf photosynthesis is severely impaired.
Yanxiu Miao +4 more
semanticscholar +1 more source
Advances in Materials, 2019
Compared to efficient green and near‐infrared light‐emitting diodes (LEDs), less progress has been made on deep‐blue perovskite LEDs. They suffer from inefficient domain [various number of PbX6− layers (n)] control, resulting in a series of unfavorable ...
S. Yuan +9 more
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Compared to efficient green and near‐infrared light‐emitting diodes (LEDs), less progress has been made on deep‐blue perovskite LEDs. They suffer from inefficient domain [various number of PbX6− layers (n)] control, resulting in a series of unfavorable ...
S. Yuan +9 more
semanticscholar +1 more source
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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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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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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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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