Results 21 to 30 of about 136,487 (304)
Parental phenotype not predator cues influence egg warning coloration and defence levels [PDF]
In species that advertise their toxicity to predators through visual signals, there is considerable variation among individuals in both signal appearance and levels of defence.
Paul, S. +5 more
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Apart from traditional characters, other data have been used for taxonomy, like color patterns. Based on the different colors (green and orange) observed for some Calcinus tibicen (Herbst, 1761) specimens, we evaluated the genetic distance for cytochrome
Silvia Sayuri Mandai +2 more
doaj +1 more source
Between coloring and list-coloring: μ-coloring
A new variation of the coloring problem, μ-coloring, is defined in this paper. A coloring of a graph G = (V,E) is a function f : V → N such that f(v) 6= f(w) if v is adjacent to w. Given a graph G = (V,E) and a function μ : V → N, G is μ-colorable if it admits a coloring f with f(v) ≤ μ(v) for each v ∈ V .
Flavia Bonomo, Mariano Cecowski Palacio
openaire +3 more sources
Although ubiquitous, color pickers have remained largely unchanged for 25 years. Based on contextual interviews with artists and designers, we created the Color Portraits design space to characterize five key color manipulation activities: sampling and tweaking individual colors, manipulating color relationships, combining colors with other elements ...
Jalal, Ghita +2 more
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Copper is essential for life, but it can be deleterious in concentrations that surpass the physiological limits. Copper pollution is related to widespread human activities, such as viticulture and wine production. To unravel aspects of how organisms cope
Lavinia L. Ruta, Ileana C. Farcasanu
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Coloration in Supraparticles Assembled from Polyhedral Metal‐Organic Framework Particles [PDF]
Supraparticles are spherical colloidal crystals prepared by confined self‐assembly processes. A particularly appealing property of these microscale structures is the structural color arising from interference of light with their building blocks. Here, we
Michael Engel +24 more
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PROTECTIVE COLORATION OF EGGS Protective Coloration of Eggs (42) (-
Titchener, Edward B.
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Ontogeny of color development in two green–brown polymorphic grasshopper species
Many insects, including several orthopterans, undergo dramatic changes in body coloration during ontogeny. This variation is particularly intriguing in gomphocerine grasshoppers, where the green and brown morphs appear to be genetically determined ...
Mahendra Varma +3 more
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The thermal implications and ecological consequences of coloration in selected species : tenebrionid beetles (Onymacris bicolor and Onymacris ungui cularis), Cape gannets (Morus capensis) and Cape cormorants (Phalacrocorax capensis) [PDF]
Bibliography: leaves 176-192.The thermal significance of coloration was investigated in two species of Namib Desert tenebrionid beetles and two species of marine birds.
Lombard, Amanda T
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Jade-like cryptocrystalline-microcrystalline vein quartzite is called quartzite jade in the jewel business of China. Color is the main criteria for the value of quartzite jade, and therefore studying the coloration mechanism is very important for the ...
ZHANG Yong +4 more
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