Results 21 to 30 of about 31,445 (293)
Mechanism Underlying Color Variation in Calla Lily Spathes Based on Transcriptomic Analysis
Journal of the American Society for Horticultural Science, 2021 The calla lily (Zantedeschia hybrida) is a valued ornamental plant due to its unique shape and color variations. To determine the mechanisms responsible for color development in the calla lily spathe, we conducted a comparative transcriptomic analysis of
Ying Fang +3 more
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Horticulturae, 2023 Primulina serrulata is a valuable ornamental herb with rosette leaves and vibrant flowers. Some leaves of this species exhibit a bright and distinct white color along the upper veins, enhancing their ornamental value, while others are less white or ...
Quan-Li Dou +6 more
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Mechanisms of color constancy [PDF]
Journal of the Optical Society of America A, 1986 We develop a model of how the visual system finds the colors of objects that have unknown shapes and positions. The model relies on mechanisms of light adaptation, coupled with eye movements, to recover three descriptors of surface reflectance that are represented in the signals of an achromatic mechanism and two color-opponent mechanisms.
M, D'Zmura, P, Lennie
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Applied Sciences, 2021 The blue coloration model of a closed pond, Ao-ike Pond, Aomori Prefecture, Japan, was formulated in terms of radiance by applying a theory of observation devices proposed by Szirmay-Kalos (2008) and Hanaishi’s reverse ray tracing method.
Ryuji Hanaishi, Kazuhisa A. Chikita
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Crystals, 2023 The orange fluorescence of scapolite has been confirmed to be caused by (S2)−, but the frequent blue fluorescence in gem-quality scapolite has not been well explained.
Yinghua Rao +3 more
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Ionizing radiation and melanism in Chornobyl tree frogs
Evolutionary Applications, 2022 Human actions are altering ecosystems worldwide. Among human‐released pollutants, ionizing radiation arises as a rare but potentially devastating threat to natural systems.
Pablo Burraco, Germán Orizaola
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Crystals, 2023 Fluorite has been attracting the attention of gemstone mineralogists because of its rich color and excellent fluorescence properties. This paper studied fluorite with three color types (blue, green, and white) and five blue-purple fluorites with an ...
Yang Liu +5 more
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Effect of Reduction Annealing on the Coloration Mechanism of Yellow Sapphire with High Iron Content
Crystals, 2022 The color of yellow sapphire from Africa characterized by high iron content and low levels of other transition metal elements was changed from yellow to grayish-blue after high-temperature reduction annealing.
Xiao Wu +4 more
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Mineralogical Characteristics and Coloration Mechanism of Yellow-Green Alunite Jade
Yankuang ceshi, 2020 BACKGROUND As a new kind of jade, yellow-green alunite jade is difficult to positively identify and evaluate due to the lack of research. Yellow-green alunite jade is a new type of jade that has appeared on the market in recent years.
SONG Yan-jun +5 more
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Pattern forming mechanisms of color vision
Network Neuroscience, 2023 Abstract While our understanding of the way single neurons process chromatic stimuli in the early visual pathway has advanced significantly in recent years, we do not yet know how these cells interact to form stable representations of hue. Drawing on physiological studies, we offer a dynamical model of how the primary visual cortex tunes
Zily Burstein +3 more
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