1 You have signs of infection, such as: 2  Increased pain, swelling, warmth, or redness around the bite. 3  Red streaks leading from the bite. 4  Pus draining from the bite.  A fever.
A negative index of refraction due to three-dimensional chirality is demonstrated for abilayered metamaterial based on pairs of mutually twisted planar metal patterns in parallel planes, which alsoshows negative electric and magnetic responses and exceptionally strong optical activity and circular dichro-ism.
The refractive index of optical glass changes with the temperature. The change is given by: (1) where. The refractive index values given in the optical glass catalog apply for an air pressure of 101.33 kPa. They are called relative refractive index values (nrel ).