Nori (Porphyra teneraor or yezoensis), also called Laver, is one of the most common seaweeds known for its use in making sushi. Popularized in Japan, where it grows abundantly, this classification of red seaweed has been used for centuries in Japan, China, and Korea, but also other countries around the world.ori (Porphyra teneraor or yezoensis), also called Laver, is one of the most common seaweeds known for its use in making sushi. Popularized in Japan, where it grows abundantly, this classification of red seaweed has been used for centuries in Japan, China, and Korea, but also other countries around the world.
Metal and Plastic Implants. A prosthetic made of metal and plastic are the most commonly used hip replacement implants. Both the ball and the socket of the hip joint are replaced with a metal implant, and a plastic spacer is placed in between. The most commonly used metals used include titanium and stainless steel.
The most common is Ti-6 aluminum Ti-4 vanadium (Ti6Al4V), but other more modern alloys are coming into use. Because of the lower moduli of elasticity than cobalt-based alloys or surgical stainless steel, titanium-based alloys have not been found to be as reliable a material when used as a cemented hip replacement.