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.
If the critical angle is not met, we will observea combined ATR and external reï¬ectance result. This occurs if theangle of incidence of the IR beam is too low, if the refractiveindex of the crystal is too low, if the refractive index of the sampleis too high or a combination of these 3 factors.