Results 21 to 30 of about 239,050 (309)
La geometría de visualización afecta el dicromatismo sexual y la conspicuidad de la coloración del plumaje no iridiscente de Tersina viridis [PDF]
, 2016 Some types of plumage color are difficult to characterize spectrophotometrically because the properties of the reflected light change with viewing geometry (i.e.
Barreira, Ana Soledad +3 more
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Nauplius, 2018 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
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Extreme offspring ornamentation in American coots is favored by selection within families, not benefits to conspecific brood parasites [PDF]
, 2019 Offspring ornamentation typically occurs in taxa with parental care, suggesting that selection arising from social interactions between parents and offspring may underlie signal evolution.
Lyon, Bruce E., Shizuka, Daizaburo
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The Feasibility of Use of Caecal and Diverticular Coloration in Field Determination of Grasshopper Diet [PDF]
, 2017 Excerpt: Many studies have been undertaken in the past on the food selection, food preferences, and economic damage of various grasshoppers and their allies.
Tyrkus, Michael
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Between coloring and list-coloring: μ-coloring
Electronic Notes in Discrete Mathematics, 2005 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
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Influence of oxygen pressure on the fs laserinduced oxidation of molybdenum thin films [PDF]
, 2018 We present a study of femtosecond (1028 nm, 230 fs, 54.7 MHz) laser processing on molybdenum (Mo) thin films. Irradiations were done under ambient air as well as pure oxygen (O2) at various gauge pressures (4, 8, 12 and 16 psi). Our results indicate that
Aguilar, G +5 more
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Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems, 2015 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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Bioengineering, 2021 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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Colour change and assortment in the western rainbowfish [PDF]
, 2010 Grouping behaviour is widespread across the animal kingdom, and is known to reduce an individual's risk of predation, for example through predator confusion.
Kelley, Jennifer L. +2 more
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Ontogeny of color development in two green–brown polymorphic grasshopper species
Ecology and Evolution, 2023 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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