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.
1 (In 5 degree increments using the +-5 buttons.). 2  The index of refraction of the first medium is fixed at n=1.00. 3  The index of refraction of the second medium can be varied from n=1.00 (for vaccuum) to a maximum of n=2.42 (for diamond). ( 4 Selectable by pulldown menu.).