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.
Figure 3. Positive functional hallux limitus test. A: A load is applied to the first metatarsal head to simulate ground reaction force. B: As dorsiflexion of the toe is attempted, there is a jamming at the first metatarsophalangeal joint.