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  2. Biological effects of high-energy visible light - Wikipedia

    en.wikipedia.org/wiki/Biological_effects_of_high...

    Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

  3. Kmart - Wikipedia

    en.wikipedia.org/wiki/Kmart

    Kmart (/ ˈ k eɪ m ɑːr t / KAY-mart), formerly legally registered as Kmart Corporation, now operated by Transformco, is a department store chain, and an online retailer in the United States and operates six remaining Kmart big-box department stores — 3 in the US Virgin Islands [5] [6] [7] and one each in Kendale Lakes, Florida (Miami postal address); [4] Bridgehampton, Long Island; [8 ...

  4. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    Therefore, it is not sex-linked (equally prevalent in both males and females). The OMIM gene code for this mutation is 304000 "Colorblindness, Partial Tritanomaly". [42] Tetartan is the "fourth type" of color blindness, and a type of blue–yellow color blindness. However, its existence is hypothetical and given the molecular basis of human ...

  5. Everyday low price - Wikipedia

    en.wikipedia.org/wiki/Everyday_low_price

    One 1992 study stated that 26% of American supermarket retailers pursued some form of EDLP, meaning that the other 74% promoted high-low pricing strategies. [2]A 1994 study of an 86-store supermarket grocery chain in the United States concluded that a 10% EDLP price decrease in a category increased sales volume by 3%, while a 10% high-low price increase led to a 3% sales decrease.

  6. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    Main article: Light-emitting diode physics. In a light-emitting diode, the recombination of electrons and electron holes in a semiconductor produces light (be it infrared, visible or UV), a process called " electroluminescence ". The wavelength of the light depends on the energy band gap of the semiconductors used.

  7. Bromophenol blue - Wikipedia

    en.wikipedia.org/wiki/Bromophenol_blue

    Dye. Bromophenol blue is also used as a dye. At neutral pH, the dye absorbs red light most strongly and transmits blue light. (Its peak absorbance is 590 nm at a basic pH of 12.) Solutions of the dye, therefore, are blue. At low pH, the dye absorbs ultraviolet and blue light most strongly and appears yellow in solution.

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