What is ultraviolet radiation? How is ultraviolet radiation produced? Can humans see ultraviolet radiation? ultraviolet radiation, that portion of theelectromagnetic spectrumextending from theviolet, or short-wavelength, end of the visiblelightrange to theX-rayregion. Ultraviolet (UV)radiationis undetectab...
Melanism refers to thedepositionof melanin in the tissues of living animals. Thechemistryof the process depends on the metabolism of the amino acid tyrosine, the absence of which results inalbinism, or lack of pigmentation. Melanism can also occur pathologically, as in a malignantmelanoma, a ca...
Although the term mole may cover a variety of different sorts of skin growths, most often it refers to a localized accumulation of pigment-producing cells called melanocytes. These are generally uniform in color and round in shape. In dermatology, moles are sometimes known as benign neoplasms. ...
Accordingly, if the compound of the present invention is administered to an animal, preferably a human, it is possible to inhibit decomposition of melanin in keratinocytes, inhibit autophagy, darken skin or hair color and prevent or improve gray hair. More specifically, the compound of the present...
Preferably the aperture is 7 millimetres in size but it is to be understood that other sizes are applicable as what is advantageous is the aperture assists to focus the light on a medium of study that is a particular area of the skin. The adjustable aperture (6) is placed between the ...
have a yellow color and can be processed in several ways to achieve such a transmission spectrum. The term “melanin like dye” refers to a dye that has a transmission spectrum similar to that of melanin. In accordance with the present invention, such dyes are a yellow form of the polymeri...