Results 291 to 300 of about 5,683,627 (357)
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Blue-Light-Induced Carbene-Transfer Reactions of Diazoalkanes.
Angewandte Chemie, 2019Carbenes are very important reactive intermediates to access a variety of complex molecules and are applied widely in organic synthesis and drug discovery. Typically, their chemistry is accessed by the use of transition metal catalysts.
Renè Hommelsheim +4 more
semanticscholar +1 more source
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.,
openaire +2 more sources
Planta, 2004
In the past decade, three groups of blue-light photore ceptor have been identified in higher plants, namely, cryptochromes, photo tropins, and the ZTL/FKF1/ LKP2 family. All of them contain flavins as the chro mophore. In addition, opsin-related photoreceptors were found in Volvox and Chlamydomonas, and FAD containing photoactivated adenylyl cyclases ...
Roopa, Banerjee, Alfred, Batschauer
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In the past decade, three groups of blue-light photore ceptor have been identified in higher plants, namely, cryptochromes, photo tropins, and the ZTL/FKF1/ LKP2 family. All of them contain flavins as the chro mophore. In addition, opsin-related photoreceptors were found in Volvox and Chlamydomonas, and FAD containing photoactivated adenylyl cyclases ...
Roopa, Banerjee, Alfred, Batschauer
openaire +2 more sources
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
semanticscholar +1 more source
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
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
semanticscholar +1 more source
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
Conversion of orange light into blue light
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2010Frequency upconversion in triply ionized praseodymium doped glass with composition TeO(2)-Na(2)O (TNO) system under the excitation with a laser light from a dye laser has been reported and the covalency, bonding parameter, nephalauxetic effect which provides the information about the nature of bonding between the lanthanide ions and the surrounding ...
Nirupama, Rai +4 more
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Trends in Plant Science, 2000
Plants have several blue-light receptors, which regulate different aspects of growth and development. Recent studies have identified three such receptors: cryptochrome 1, cryptochrome 2 and phototropin. Cryptochromes 1 and 2 are photolyase-like receptors that regulate hypocotyl growth and flowering time; phototropin mediates phototropism in response to
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Plants have several blue-light receptors, which regulate different aspects of growth and development. Recent studies have identified three such receptors: cryptochrome 1, cryptochrome 2 and phototropin. Cryptochromes 1 and 2 are photolyase-like receptors that regulate hypocotyl growth and flowering time; phototropin mediates phototropism in response to
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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 ...
openaire +2 more sources
Phototropin Blue-Light Receptors
Annual Review of Plant Biology, 2007Phototropins are blue-light receptors controlling a range of responses that serve to optimize the photosynthetic efficiency of plants. These include phototropism, light-induced stomatal opening, and chloroplast movements in response to changes in light intensity.
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Science Signaling, 2008
Blue light triggers the association of a photoreceptor, transcription factor, and DNA site, thus inducing expression for the gene FT (flowering time) and initiating flowering.
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Blue light triggers the association of a photoreceptor, transcription factor, and DNA site, thus inducing expression for the gene FT (flowering time) and initiating flowering.
+4 more sources