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Polyoxymethylene (POM), also known as acetal, [4] polyacetal, and polyformaldehyde, is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and excellent dimensional stability. Short-chained POM (chain length between 8 and 100 repeating units) is also better known as paraformaldehyde (PFA).
A tin of Royal Crown Hair Dressing Sweet Georgia Brown Hair Dressing Pomade from 1947. Pomade is a greasy, waxy, or water-based substance that is used to style hair. It generally gives the user's hair a shiny, slick appearance. It lasts longer than most hair-care products, and often
Unlike the normal papermaking process, air-laid paper does not use water as the carrying medium for the fibre. Fibres are carried and formed to the structure of paper by air. The air-laid structure is isotropic. The raw material is long fibered softwood fluff pulp in roll form. The pulp are defibrized in a hammermill. Defibration is the process ...
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This process is known as trichomalacia. The main causes of anagen effluvium are an infection, a drug, a toxin, radiation or an autoimmune disease. [3] Toxins that can interrupt hair growth include: Chemotherapy agents, usually prescribed to treat cancer, especially when multiple drugs are used or they are in high dose.
Bleaching the hair is a gradual process and different colors may be achieved dependent on the original hair color, application time, and strength of the product used. Applied on black hair, the hair will change its color to brown, red, orange, orange-yellow, yellow, and finally pale yellow. [19]
Non scarring hair loss, also known as noncicatricial alopecia is the loss of hair without any scarring being present. [1] There is typically little inflammation and irritation, but hair loss is significant. This is in contrast to scarring hair loss during which hair follicles are replaced with scar tissue as a result of inflammation.
Primary intention is the healing of a clean wound without tissue loss. [101] In this process, wound edges are brought together, so that they are adjacent to each other (re-approximated). Wound closure is performed with sutures (stitches), staples, or adhesive tape or glue.