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Artículos de revistas sobre el tema "Light"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 31 de julio de 2024

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1

Hee, Miriam van, Stefaan van den Bremt, Marco Antonio Campos y Judith Wilkinson. "licht / luz / light". Sirena: poesia, arte y critica 2007, n.º 1 (2007): 112–13. http://dx.doi.org/10.1353/sir.2007.0040.

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2

Supriya Shashikant Kumar, N. "Urban Light Plan-Light Pollution in Urban Areas & Light Pollution Control". International Journal of Science and Research (IJSR) 12, n.º 7 (5 de julio de 2023): 572–80. http://dx.doi.org/10.21275/sr23706150651.

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3

Houser, Kevin W. "Light, Light, Light". LEUKOS 8, n.º 1 (1 de julio de 2011): 5–7. http://dx.doi.org/10.1080/15502724.2011.10732153.

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4

Shiffman, Saul, Janine L. Pillitteri, Steven L. Burton, Jeffrey M. Rohay y Joe G. Gitchell. "Smokers' beliefs about “Light” and “Ultra Light” cigarettes". Tobacco Control 10, suppl 1 (1 de diciembre de 2001): i17—i23. http://dx.doi.org/10.1136/tc.10.suppl_1.i17.

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OBJECTIVETo assess beliefs about the tar and nicotine delivery characteristics and health benefits of Light and Ultra Light cigarettes among cigarette smokers.DESIGNRandom digit dialed telephone survey conducted in September 1999.SUBJECTSDaily smokers (n = 2120) of Regular (46%), Light (39%), and Ultra Light (15%) cigarettes in the USA. The sample was weighted to match the US smoker population on age, sex, and ethnicity.MAIN OUTCOME MEASURESBeliefs about Light and Ultra Light cigarettes were summarised on three dimensions: Safety (reduced health risk), Delivery (lowered tar and nicotine delivery), and Sensation (less harsh).RESULTSMost smokers believed Lights and Ultra Lights were less harsh and delivered less tar and nicotine. On average, smokers believed that Lights afforded a 25% reduction in risk, and Ultra Lights a 33% reduction in risk. Light and Ultra Light cigarette smokers evaluated the risks of their own cigarette types more favourably. Light smokers had greater interest in quitting than Ultra Light smokers. Quitting intention was modestly related to beliefs about these cigarettes. Believing that Lights and Ultra Lights delivered less tar and nicotine and that they were less harsh each independently contributed to the belief that these cigarettes were safer.CONCLUSIONSMany Light and Ultra Light smokers believe that smoking these cigarettes impart a substantial health benefit, due in part to their experience that these cigarettes are less harsh and the belief that these cigarettes deliver less tar.

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5

Raschke, Carl. "The “Light of Light Beyond Light”". Journal for Continental Philosophy of Religion 1, n.º 2 (4 de octubre de 2019): 258–76. http://dx.doi.org/10.1163/25889613-00102006.

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Abstract Despite Jürgen Habermas’ famous suggestion that the violence of history might be mitigated by “the liquidation of unconditional claims,” the issue of whether monotheistic religions and the metaphysical rationality they engender are indeed the hidden source of such violence remains an open one. This essay explores how Derrida with his project “deconstruction” sought to deal in a manner unique to philosophy with the question of the relationship between violence, the unconditional, and the ontological. It proposes that Derrida’s “Jew-Greek” dilemma, which encapsulates the problem of the “violence” of metaphysics, is resolved through Levinas’ project of disrupting Husserlian phenomenology with an alterity that is not simply a heteron that disintermediates the logic of predication, but one that challenges what is normally meant by philosophy itself.

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6

Leonard, Daniel L. y Edward J. Swift. "LIGHT-EMITTING-DIODE CURING LIGHTS?REVISITED". Journal of Esthetic and Restorative Dentistry 19, n.º 1 (enero de 2007): 56–62. http://dx.doi.org/10.1111/j.1708-8240.2006.00065.x.

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7

Rowse, Elizabeth G., Stephen Harris y Gareth Jones. "Effects of dimming light-emitting diode street lights on light-opportunistic and light-averse bats in suburban habitats". Royal Society Open Science 5, n.º 6 (junio de 2018): 180205. http://dx.doi.org/10.1098/rsos.180205.

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Emerging lighting technologies provide opportunities for reducing carbon footprints, and for biodiversity conservation. In addition to installing light-emitting diode street lights, many local authorities are also dimming street lights. This might benefit light-averse bat species by creating dark refuges for these bats to forage and commute in human-dominated habitats. We conducted a field experiment to determine how light intensity affects the activity of the light-opportunistic Pipistrellus pipistrellus and light-averse bats in the genus Myotis. We used four lighting levels controlled under a central management system at existing street lights in a suburban environment (0, 25, 50 and 100% of the original output). Higher light intensities (50 and 100% of original output) increased the activity of light-opportunistic species but reduced the activity of light-averse bats. Compared to the unlit treatment, the 25% lighting level did not significantly affect either P. pipistrellus or Myotis spp. Our results suggest that it is possible to achieve a light intensity that provides both economic and ecological benefits by providing sufficient light for human requirements while not deterring light-averse bats.

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8

Pile, David F. P. "Light-by-light". Nature Photonics 11, n.º 10 (29 de septiembre de 2017): 612. http://dx.doi.org/10.1038/s41566-017-0021-3.

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9

Enwemeka, Chukuka S. "Light is Light". Photomedicine and Laser Surgery 23, n.º 2 (abril de 2005): 159–60. http://dx.doi.org/10.1089/pho.2005.23.159.

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10

Goodman, Lenn E. "Light on Light". Muslim World 109, n.º 4 (octubre de 2019): 477–97. http://dx.doi.org/10.1111/muwo.12305.

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11

Munkholt Christensen, Maria. "“Light from Light”". Ecumenical Review 75, n.º 2 (abril de 2023): 249–62. http://dx.doi.org/10.1111/erev.12787.

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12

Reilly, Hannah Z. y Mary Carla Curran. "Ebb Light, Flood Light: Red Light, Green Light for Larval Flatfishes". Natural Sciences Education 46, n.º 1 (21 de septiembre de 2017): 160024. http://dx.doi.org/10.4195/nse2016.08.0024.

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13

Schernhammer, Eva S. y Katie L. Stone. "LIGHT POLLUTION ≠ LIGHT POLLUTION?" Chronobiology International 28, n.º 4 (mayo de 2011): 378–79. http://dx.doi.org/10.3109/07420528.2011.565898.

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14

Anderson, Stan. "Red light, Green Light". Neurosurgery 68, n.º 2 (1 de febrero de 2011): N15—N16. http://dx.doi.org/10.1227/01.neu.0000393590.38637.f2.

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15

Forchel, Alfred. "Switching light with light". Nature Materials 2, n.º 1 (enero de 2003): 13–14. http://dx.doi.org/10.1038/nmat801.

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16

Khan, Yasmin. "Shining light upon light". Nature 458, n.º 7235 (marzo de 2009): 149–50. http://dx.doi.org/10.1038/458149a.

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17

Landauer, Rolf. "Light faster than light?" Nature 365, n.º 6448 (octubre de 1993): 692–93. http://dx.doi.org/10.1038/365692a0.

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18

Chiao, Raymond Y. y Peter W. Milonni. "Fast Light, Slow Light". Optics and Photonics News 13, n.º 6 (1 de junio de 2002): 26. http://dx.doi.org/10.1364/opn.13.6.000026.

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19

Hesselink, Lambertus, Jack Feinberg y Gerald Roosen. "Controlling light with light". Journal of Physics D: Applied Physics 41, n.º 22 (24 de octubre de 2008): 220301. http://dx.doi.org/10.1088/0022-3727/41/22/220301.

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20

Roeder, John L. "Switching light with light". Physics Teacher 36, n.º 2 (febrero de 1998): 128. http://dx.doi.org/10.1119/1.1539798.

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21

PEPLING, RACHEL. "RED LIGHT, GREEN LIGHT". Chemical & Engineering News 84, n.º 12 (20 de marzo de 2006): 8. http://dx.doi.org/10.1021/cen-v084n012.p008a.

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22

McCall, S. L. "Controlling light with light". Journal of Luminescence 37, n.º 2 (mayo de 1987): 115. http://dx.doi.org/10.1016/0022-2313(87)90173-6.

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23

RAMPOLOKENG, LESEGO. "dark light. light dark". Matatu 15-16, n.º 1 (26 de abril de 1996): 276. http://dx.doi.org/10.1163/18757421-90000193.

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24

Southwick, Marcia. "Red Light, Green Light". Missouri Review 11, n.º 1 (1988): 51. http://dx.doi.org/10.1353/mis.1988.0008.

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25

Marangos, Jon. "Focusing light with light". Nature 374, n.º 6524 (abril de 1995): 679–80. http://dx.doi.org/10.1038/374679a0.

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26

Wilmsen, C. W., S. A. Feld, F. R. Beyette y X. An. "Switching light with light". IEEE Circuits and Devices Magazine 7, n.º 6 (noviembre de 1991): 21–25. http://dx.doi.org/10.1109/101.101752.

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27

Ennever, John F. "Blue Light, Green Light, White Light, More Light: Treatment of Neonatal Jaundice". Clinics in Perinatology 17, n.º 2 (junio de 1990): 467–81. http://dx.doi.org/10.1016/s0095-5108(18)30579-7.

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28

Borevitz, Justin O., Julin N. Maloof, Jason Lutes, Tsegaye Dabi, Joanna L. Redfern, Gabriel T. Trainer, Jonathan D. Werner et al. "Quantitative Trait Loci Controlling Light and Hormone Response in Two Accessions ofArabidopsis thaliana". Genetics 160, n.º 2 (1 de febrero de 2002): 683–96. http://dx.doi.org/10.1093/genetics/160.2.683.

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AbstractWe have mapped quantitative trait loci (QTL) responsible for natural variation in light and hormone response between the Cape Verde Islands (Cvi) and Landsberg erecta (Ler) accessions of Arabidopsis thaliana using recombinant inbred lines (RILs). Hypocotyl length was measured in four light environments: white, blue, red, and far-red light and in the dark. In addition, white light plus gibberellin (GA) and dark plus the brassinosteroid biosynthesis inhibitor brassinazole (BRZ) were used to detect hormone effects. Twelve QTL were identified that map to loci not previously known to affect light response, as well as loci where candidate genes have been identified from known mutations. Some QTL act in all environments while others show genotype-by-environment interaction. A global threshold was established to identify a significant epistatic interaction between two loci that have few main effects of their own. LIGHT1, a major QTL, has been confirmed in a near isogenic line (NIL) and maps to a new locus with effects in all light environments. The erecta mutation can explain the effect of the HYP2 QTL in the blue, BRZ, and dark environments, but not in far-red. LIGHT2, also confirmed in an NIL, has effects in white and red light and shows interaction with GA. The phenotype and map position of LIGHT2 suggest the photoreceptor PHYB as a candidate gene. Natural variation in light and hormone response thus defines both new genes and known genes that control light response in wild accessions.

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29

Martín, Beatriz, Héctor Pérez y Miguel Ferrer. "Light-Emitting Diodes (LED): A Promising Street Light System to Reduce the Attraction to Light of Insects". Diversity 13, n.º 2 (19 de febrero de 2021): 89. http://dx.doi.org/10.3390/d13020089.

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Currently, there is a demand for more energy-efficient lighting sources, however, light emitted by different lighting systems differs in primary properties such as intensity, propagation direction, and wavelength spectrum, among others, and these properties may affect insect light attraction. Despite the energetic benefits of light-emitting diodes (LED) as street light systems, their ecological impacts on insects have not yet been tested on a wide range of taxa. Using an experimental approach, we showed that LED street lights lead to a reduction in the total number of insects captured with light traps in a wide range of families. Coleoptera and Lepidoptera orders were the most sensitive groups to ecological light pollution in the study area. We suggest that LED was the least attractive light system for most of the affected groups both because of its very little emitted short-wavelength light and because of its lower light intensity. We expect that the more and more widespread use of LED lights as a measure to reduce economic costs of outdoor lighting should lead to a lower attraction to street lights in most of the affected insect taxa and to diminish the negative impacts of artificial light attraction on the ecosystems.

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30

Leonard, Daniel L. y Edward J. Swift Jr. "LIGHT-EMITTING DIODE CURING LIGHTS, PART I". Journal of Esthetic and Restorative Dentistry 15, n.º 2 (marzo de 2003): 123–26. http://dx.doi.org/10.1111/j.1708-8240.2003.tb01037.x.

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31

Gill, Lesley y Phil L. Ramsey. "Shedding Light on Trust". Asia Pacific Management and Business Application 1, n.º 2 (30 de diciembre de 2012): 117–28. http://dx.doi.org/10.21776/ub.apmba.2012.001.02.2.

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32

Mankawade, Amruta, Sanika Kadam, Omkar Kale, Aditya Kanawade, Anish Kamble y Sejal Kharche. "Street Light Control System". International Journal for Research in Applied Science and Engineering Technology 10, n.º 11 (30 de noviembre de 2022): 1643–49. http://dx.doi.org/10.22214/ijraset.2022.47261.

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Abstract: Automatic Street light systems require less maintenance than traditional street lights because they do not have any moving parts. Because the autonomous street light system is self-contained, it does not require any external wiring or grid connection. When the sunlight falls below the visible region of our eyes, the lights in this Street Light Control System will automatically turn on, and when the sunshine returns, the lights will immediately turn off.There is no requirement for manual operation in this project, such as setting the ON and OFF times. This system uses a motion detection sensor which helps to automatically increase the intensity of the street light when a car or pedestrian is noticed in the area. If there is no activity in the area, the light is automatically changed to a minimum light level that is optimum.

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33

Vaz, Aldrin Claytus. "Colour Light Intensity based Modulation Scheme for Visible Light Communication Employing Turbo Codes". Journal of Advanced Research in Dynamical and Control Systems 12, SP3 (28 de febrero de 2020): 1051–60. http://dx.doi.org/10.5373/jardcs/v12sp3/20201351.

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34

Heqing Huang, Heqing Huang, Lihui Feng Lihui Feng, Guoqiang Ni Guoqiang Ni y and Aiying Yang and Aiying Yang. "Indoor imaging visible light positioning with sampled sparse light source and mobile device". Chinese Optics Letters 14, n.º 9 (2016): 090602–90606. http://dx.doi.org/10.3788/col201614.090602.

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35

Akhmanov, S. A. "Optical bistability: light controls light". Uspekhi Fizicheskih Nauk 151, n.º 1 (1987): 185. http://dx.doi.org/10.3367/ufnr.0151.198701n.0185.

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36

Berger, Ronald O. "GE Security Light - Fixation Light". Ophthalmic Surgery, Lasers and Imaging Retina 16, n.º 11 (noviembre de 1985): 732. http://dx.doi.org/10.3928/1542-8877-19851101-15.

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37

Jones, Tom. "Light jets near light speed". Nature 395, n.º 6701 (octubre de 1998): 440–41. http://dx.doi.org/10.1038/26623.

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38

Casey, Ellen Miller. "Hecht's “More Light! More Light!”". Explicator 54, n.º 2 (enero de 1996): 113–15. http://dx.doi.org/10.1080/00144940.1996.9934083.

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39

Miller, David J. "Casting more light on light". Nature 357, n.º 6376 (mayo de 1992): 285–86. http://dx.doi.org/10.1038/357285a0.

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40

MUKAI, Kenji. "Natural Light and Artificial Light". Journal of the Society of Mechanical Engineers 106, n.º 1015 (2003): 462–63. http://dx.doi.org/10.1299/jsmemag.106.1015_462.

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41

Akhmanov, S. A. "Optical bistability: light controls light". Soviet Physics Uspekhi 30, n.º 1 (31 de enero de 1987): 86–88. http://dx.doi.org/10.1070/pu1987v030n01abeh002802.

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42

Donati, Gaia. "Light manipulation: Winding light beams". Nature Photonics 10, n.º 10 (29 de septiembre de 2016): 621. http://dx.doi.org/10.1038/nphoton.2016.194.

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43

Gore, Gordon R. "Black Light and Light Sticks". Physics Teacher 43, n.º 3 (marzo de 2005): 184. http://dx.doi.org/10.1119/1.1869433.

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44

Gwizdala, Michal, Rudi Berera, Diana Kirilovsky, Rienk van Grondelle y Tjaart P. J. Krüger. "Controlling Light Harvesting with Light". Journal of the American Chemical Society 138, n.º 36 (2 de septiembre de 2016): 11616–22. http://dx.doi.org/10.1021/jacs.6b04811.

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45

FELDER, F. "Shining Light, Not Shedding Light". Electricity Journal 17, n.º 7 (agosto de 2004): 51–54. http://dx.doi.org/10.1016/s1040-6190(04)00083-1.

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46

Robert Vivian. "Light Calling to Other Light". Fourth Genre: Explorations in Nonfiction 2, n.º 1 (2000): 56–61. http://dx.doi.org/10.1353/fge.2013.0324.

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47

The Lancet Regional Health – Europe. "Shedding light on light pollution". Lancet Regional Health - Europe 31 (agosto de 2023): 100710. http://dx.doi.org/10.1016/j.lanepe.2023.100710.

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48

Ruiz, Sandra. "A Light for a Light". Meridians 21, n.º 2 (1 de octubre de 2022): 455–79. http://dx.doi.org/10.1215/15366936-9882141.

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Abstract How does loss tear a hole in the world and produce a collective remaking of a new social order in which grief-work is not contained singularly but is a process done in feminist, queer, and Black and Brown ensemble? Interested in how we deliberately incorporate loss into collective grief-work, this article pulls from feminist and queer theorists of color who move across social and psychical constructions of sorrow. Highlighting contemporary art by minoritarian artists such as Eva Margarita Reyes and Pedro Lopez, who embrace loss, the author argues that grief-work is a communal labor we undergo together in acts of intimate meditation, suffering, spillage, and transformation. Happening in feminist and queer ensemble, grief-work is a deliberate decision to assemble in nonlinear feelings and attachments; it is an intention to work together to defend not only the dead but also the living, tending to immaterial energies that shift the fecund terrain of both life and death.

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49

Koo, Bon-Yeop y Myoung-Hee Lee. "Blue light-blocking efficiency of blue light-blocking and driving spectacle lenses". Medical hypothesis, discovery & innovation in optometry 2, n.º 3 (17 de marzo de 2022): 124–31. http://dx.doi.org/10.51329/mehdioptometry136.

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Background: Retinal damage caused by blue light can result in glare, decreased visual acuity, and accelerated macular degeneration. In clinical practice, blue light-blocking glasses, such as driving glasses, are used to block blue light effectively. This study was aimed at measuring light transmittance to analyze the blue light-blocking efficiencies of blue light-blocking and driving spectacle lenses manufactured with tinting, coating, and only materials and at distinguishing the difference between the two spectacle lenses. Methods: Blue light-blocking and driving spectacle lenses used to measure light transmittance were manufactured with tinting (blue light blocking lenses by tinting or “BTL” and driving spectacle lenses by tinting or “DTL,” respectively), coating (blue light blocking lenses by coating or “BCL” and driving spectacle lenses by coating or “DCL,” respectively), and only materials (blue light blocking lenses by material or “BML” and driving spectacle lenses by material or “DML,” respectively). Results: Compared to BTL, DTL had a significantly greater decrease in the light transmission efficiency for visible and blue lights (P < 0.05). The blue light hazard function was lower for BML and DML than for conventional coating lenses in both visible and blue lights, although without significant differences between visible and blue lights (P > 0.05). Conclusions: The blue light-blocking spectacle lenses had the highest blue light-blocking efficiency when manufactured with tinting, coating, and only materials, in order. With DML, the blue light-blocking efficiency was lower compared to DTL but higher compared to DCL. Therefore, DML could provide a balanced glare control and clear retinal image overall.

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50

Li, Ruining, Jiahuan Long, Yongzhe Yan, Jiaming Luo, Zhigang Xu y Xiaoying Liu. "Addition of White Light to Monochromatic Red and Blue Lights Alters the Formation, Growth, and Dormancy of In Vitro-grown Solanum tuberosum L. Microtubers". HortScience 55, n.º 1 (enero de 2020): 71–77. http://dx.doi.org/10.21273/hortsci14548-19.

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Monochromatic light and wide-band white light both affect plant growth and development. However, the different effects between monochromatic light and addition white light to monochromatic light on the formation, growth, and dormancy of microtubers have not been fully explored. Therefore, we evaluated these effects using in vitro potatoes grown under pure blue and red lights and a combination of blue light and red light supplemented with white light, respectively. Current results suggested that light spectra influenced microtuber formation, growth, and dormancy by regulating potato plantlet morphogenesis, affecting the synthesis and transportation of photosynthetic metabolites, and altering the accumulation and distribution of biomass in various plant tissues. Monochromatic lights and the combined spectra had differing effects. For instance, monochromatic red light induced the growth of more microtubers, whereas addition white light to red light decreased number but increased weight of microtubers. Meanwhile, monochromatic blue light facilitated tuber growth, whereas addition white light to blue light decreased microtubers weight but increased microtuber number. In addition, composite lights of addition white light to monochromatic red and blue lights both extended the dormancy period, and monochromatic blue light shortened the dormancy period of microtubers >300 mg. Therefore, in microtuber agricultural production, specific light conditions may be applied at different growth stages of in vitro potatoes to increase the number of effective microtubers (>50 mg) and to satisfy storing requirement of seed microtubers.

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