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Eye color. 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. [ 3]: 9. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of ...
Specialty. Ophthalmology. Coats' disease is a rare congenital, nonhereditary eye disorder, causing full or partial blindness, characterized by abnormal development of blood vessels behind the retina. Coats' disease can also fall under glaucoma. It can have a similar presentation to that of retinoblastoma.
Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.
List of colors: A–F. Colors are an important part of visual arts, fashion, interior design, and many other fields and disciplines. The following is a list of colors. A number of the color swatches below are taken from domain-specific naming schemes such as X11 or HTML4. RGB values are given for each swatch because such standards are defined ...
Impossible color. The human eye's red-to-green and blue-to-yellow values of each one-wavelength visible color [citation needed] Human color sensation is defined by the sensitivity curves (shown here normalized) of the three kinds of cone cells: respectively the short-, medium- and long-wavelength types. Impossible colors are colors that do not ...
The color adjectives used in 1779 are weiss "white" ( Caucasian race ), gelbbraun "yellow-brown" ( Mongolian race ), schwarz "black" ( Aethiopian race ), kupferrot "copper-red" ( American race) and schwarzbraun "black-brown" ( Malayan race ). [ 11] Blumenbach belonged to a group known as the Göttingen school of history, which helped to ...
848. ISBN. 978-1-4165-5571-1. Yellow Eyes is a 2009 military science fiction novel in John Ringo 's Legacy of the Aldenata series, co-authored with Tom Kratman. The book, which is a spin-off of the main series, focuses on the Posleen invasion of Central America, with an emphasis on Panama. In contrast with other books in the series, emphasis is ...
Some shades of Brown. Red Brown ( X11) Pale Brown. Medium Brown. Dark Brown. Light Brown. Shades of brown can be produced by combining red, yellow, and black [ 1] pigments, or by a combination of orange and black—illustrated in the color box. The RGB color model, that generates all colors on computer and television screens, makes brown by ...