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.
Winding Thermistors A thermistor is a non-linear resistance temperature detector, made from semi-conductor material. Each specific thermistor has its own unique resistance vs.temperature characteristic. There are two general types of Thermistors. The positive temperature coefficient (PTC) type has a resistance that increases with increasing temperature. The PTC thermistor has a sharp rise in resistance when the temperature reaches the 'knee', or switching point. The negative temperature coefficient (NTC) type thermistor has a resistance that decreases with increasing temperature.