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The irises of human eyes exhibit a wide spectrum of colours. Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye's iris [1] [2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris.
In the nineteenth century, the scientists Grassmann and Helmholtz did experiments in which they concluded that finding a good complement for spectral yellow was difficult, but that the result was indigo, that is, a wavelength that today's color scientists would call violet or purple. Helmholtz says "Yellow and indigo blue" are complements. [16]
The pure essence of purple was approximated in pigment in the late 1960s by mixing fluorescent magenta and fluorescent blue pigments together to make fluorescent purple to use in psychedelic black light paintings. This tone of purple was very popular among hippies and was the favorite color of Jimi Hendrix.
Proteins separated by SDS-PAGE, Coomassie brilliant blue staining. Protein electrophoresis is a method for analysing the proteins in a fluid or an extract. The electrophoresis may be performed with a small volume of sample in a number of alternative ways with or without a supporting medium, namely agarose or polyacrylamide.
Gel has its origins in New Jersey powerviolence band Sick Shit, which was founded by guitarist Bobko and drummer Zach Miller. Sami Kaiser joined soon after. When Sick Shit's bassist departed from the group, the role was filled by Anthony Webster, who soon after switched to guitar.
The company was founded in 2006 by Martin Hosking, Peter Styles, and Paul Vanzella after raising $2 million in investor capital. [2] [6] On 16 June 2011, Hosking left his position at Aconex to focus on his job as CEO of Redbubble.
Agarose gel is a three-dimensional matrix formed of helical agarose molecules in supercoiled bundles that are aggregated into three-dimensional structures with channels and pores through which biomolecules can pass. [3] The 3-D structure is held together with hydrogen bonds and can therefore be disrupted by heating back to a liquid state.
The wingspan on the adult butterfly ranges from 1.25 to 1.5 inches. Despite its common name "great purple hairstreak", this butterfly does not sport any purple coloration. Instead, the upper-side of the wings are iridescent blue at the center, with a black border, and males typically have both a more extensive and brighter blue wing coloration when compared to their female counterpart
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