Results 21 to 30 of about 3,791,267 (292)

Photochemical colour change for traditional watercolour pigments in low oxygen levels [PDF]

open access: yes, 2014
An investigation for light exposure on pigments in low-oxygen environments (in the range 0–5% oxygen) was conducted using a purpose-built automated microfadometer for a large sample set including multiple samples of traditional watercolour pigments from ...
Caspers, C   +5 more
core   +1 more source

Kajian Area Penyinaran Dan Nilai Intensitas Pada Peralatan Blue Light Therapy

open access: yesMajalah Ilmiah Teknologi Elektro, 2018
The case of a yellow baby (hyperbilirubinemia) is one of the most common conditions in newborns. One of the measures to reduce bilirubin levels in a baby is by phototherapy using blue light therapy.
Dewa Ayu Sri Santiari, mahadi putra
doaj   +1 more source

Induction of Skin Cancer by Long-Term Blue Light Irradiation

open access: yesBiomedicines, 2023
Presently, people are not only exposed to sunlight but also to a large amount of blue light from personal computers and smartphones. This blue light has various effects on the living body.
Keiichi Hiramoto   +4 more
doaj   +1 more source

Transcriptomic profiling sheds light on the blue-light and red-light response of oyster mushroom (Pleurotus ostreatus)

open access: yesAMB Express, 2020
Blue light is an important environmental factor that induces mushroom primordium differentiation and fruiting body development. Although blue-light treatment has been applied for the production of oyster mushroom (Pleurotus ostreatus), the blue-light ...
Huan Wang   +5 more
doaj   +1 more source

Inactivation of Campylobacter jejuni by exposure to high-intensity 405-nm visible light [PDF]

open access: yes, 2010
Although considerable research has been carried out on a range of environmental factors that impact on the survival of Campylobacter jejuni, there is limited information on the effects of violet/blue light on this pathogen. This investigation was carried
Anderson, J.G.   +3 more
core   +1 more source

Randomized trial of polychromatic blue-enriched light for circadian phase shifting, melatonin suppression, and alerting responses. [PDF]

open access: yes, 2019
Wavelength comparisons have indicated that circadian phase-shifting and enhancement of subjective and EEG-correlates of alertness have a higher sensitivity to short wavelength visible light.
Ayers, M.   +12 more
core   +2 more sources

Enhanced frequency up-conversion in Rb vapor [PDF]

open access: yes, 2010
We demonstrate highly efficient generation of coherent 420nm light via up-conversion of near-infrared lasers in a hot rubidium vapor cell. By optimizing pump polarizations and frequencies we achieve a single-pass conversion efficiency of 260% per Watt ...
A. S. Arnold   +23 more
core   +2 more sources

Supplemental Blue Light Frequencies Improve Ripening and Nutritional Qualities of Tomato Fruits

open access: yesFrontiers in Plant Science, 2022
Tomatoes (Solanum lycopersicum L. Micro-Tom) were grown in a plastic greenhouse. When plants anthesis, the 100 μmol m–2 s–1 blue light-emitting diode (LED) light (430 ± 10 nm) was supplemented from 6:00 to 18:00.
Rui He   +6 more
doaj   +1 more source

Effects of Light Wavelength on Daughter Cladode Growth and Quality in Edible Cactus Nopalea cochenillifera Cultured in a Plant Factory with Artificial Light

open access: yesJournal of Horticultural Research, 2018
In this study, we investigated the effects of different-colored light-emitting diodes (LEDs) on the growth and quality of daughter cladodes of the edible cactus Nopalea cochenillifera.
Horibe Takanori   +2 more
doaj   +1 more source

Growth, Water-Use Efficiency, Stomatal Conductance, and Nitrogen Uptake of Two Lettuce Cultivars Grown under Different Percentages of Blue and Red Light

open access: yesHorticulturae, 2018
The objective of this study was to characterize growth, water-use efficiency (WUE), stomatal conductance (gs), SPAD index values, and shoot nitrogen uptake of two lettuce cultivars grown under different percentages of blue and red light.
Jonathan Clavijo Herrera   +2 more
doaj   +1 more source

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