Disadvantages. 1  IPV induces very low levels of immunity in the intestine. As a result, when a person immunized with IPV is infected with wild poliovirus, the virus can still multiply inside the intestines and be shed in the faeces, risking continued circulation. 2  IPV is over five times more expensive than OPV.
Hello, Thanks for your question. vibration in the absence of any pain in right lower abdomen is likely related to the muscle twitchings. The abdominal muscles can twitch giving vibration sensations. This can happen due to: 1. Dehydration---common cause. Plenty of fluids (sports drinks like Gatorade) should resolve the issue. 2. Nerve impingement---nerve impingement at the lower spine can cause vibration sensation. 3. Systemic conditions: diabetes, vitamin deficiencies can affect the local nerves causing this sensation. Improve your diet & take a multivitamin supplement daily.
The Effect of Simulated Vibration on Preferred Bass Levels . In the second experiment, we simulated the whole-body vibration produced by the audio system by attaching an actuator to the driver's seat of the car. The actuator was driven by the low frequency portion of the audio signal below 100 Hz. Comprehensive whole-body vibration measurements performed prior to this experiment found that most of the whole-body vibration produced by the audio system occurs below 100 Hz (see slides 15 and 16) at the seat and floor. The level and frequency of the whole-body vibration varies with music program, and the weight of the listener.