Somewhat more formally, for a set Ï of properties and relations, a Ï-representation of some structure X is a structure Y that is the image of X under a s homomorphism that preserves Ï. The label representation is sometimes also applied to the homomorphism itself.
Melanoma. This cancer begins in the melanocytes, the cells that provide the skinâs color. Melanoma is one of the deadliest forms of skin cancer because it can spread rapidly inside the body. Approximately one American dies from melanoma every hour.
About Melanoma. Melanoma is a type of cancer that begins in the melanocytes â the cells deep within the epidermis (the outermost layer of the skin) whose function is to produce melanin, the pigment that gives skin its color. Dark-skinned people have cells that naturally produce a lot of melanin, while fair-skinned people produce much less.