Biasing and bias stability of transistor and FET amplifiers. For cathode biasing, a relatively low-value resistor is connected between the cathode and ground. As an example of the need for careful biasing, consider a transistor amplifier. Severely diseased subjects tend to drop out of longitudinal studies, potentially biasing the results. This is most often seen in transistor biasing arrangements for high-power output stages. This form of biasing is also called "base bias or fixed resistance biasing". Selection of the base's biasing resistors is not trivial. The review did not find strong evidence of publication bias biasing these estimates. A related study attempted to inhibit and induce flow by biasing the moods of participants. It is entirely inapplicable to the dc biasing of the device. Simulations of such biasing have shown significant delay improvements. Linear amplifiers need to operate with class-A or class-AB biasing, which makes them relatively inefficient. RTCP filtering, RTCP biasing and hierarchical aggregation. The disadvantages are more complex biasing and measurement electronics and a poor time resolution. A single power supply is easily used for biasing.